29 results on '"Herman MP"'
Search Results
2. A 38-Year-old Woman With Multiple Renal Masses and a History of Ovarian Cancer.
- Author
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Wynter C, Scherr D, and Herman MP
- Published
- 2012
3. Clinical nodal staging scores for prostate cancer: a proposal for preoperative risk assessment
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Mithat Gönen, Firas Abdollah, Felix K.-H. Chun, Richard K. Lee, Yair Lotan, Alberto Briganti, M. Graefen, Pierre I. Karakiewicz, Andreas Becker, Alexander Bachmann, Douglas S. Scherr, F. Montorsi, Harun Fajkovic, Maxine Sun, Karl Pummer, Alessandro Nonis, Michael Herman, Wolfgang Loidl, S.F. Shariat, Evanguelos Xylinas, Sascha Ahyai, A. Tewari, Luis A. Kluth, Paul Schramek, Jens Hansen, Malte Rieken, Behfar Ehdaie, Daniel Seiler, Christian Seitz, Kluth, La, Abdollah, F, Xylinas, E, Rieken, M, Fajkovic, H, Seitz, C, Sun, M, Karakiewicz, Pi, Schramek, P, Herman, Mp, Becker, A, Hansen, J, Ehdaie, B, Loidl, W, Pummer, K, Lee, Rk, Lotan, Y, Scherr, D, Seiler, D, Ahyai, Sa, Chun, Fk, Graefen, M, Tewari, A, Nonis, A, Bachmann, A, Montorsi, Francesco, Gönen, M, Briganti, A, and Shariat, Sf
- Subjects
Oncology ,Male ,Cancer Research ,Lymphatic metastasis ,medicine.medical_specialty ,nodal yield ,medicine.medical_treatment ,Preoperative risk ,Nodal staging ,extended lymph node dissection ,Risk Assessment ,Cohort Studies ,Prostate cancer ,Internal medicine ,Medicine ,Humans ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Prostatectomy ,lymph node metastasis ,business.industry ,Prostatic Neoplasms ,Lymphatic Metastasi ,lymph node metastasi ,Middle Aged ,medicine.disease ,prostate cancer ,pelvic lymph node dissection ,Lymphatic Metastasis ,Prostatic Neoplasm ,Clinical Study ,Lymph Node Excision ,Neoplasm staging ,Cohort Studie ,business ,Risk assessment ,Human ,Cohort study - Abstract
Background:Pelvic lymph node dissection in patients undergoing radical prostatectomy for clinically localised prostate cancer is not without morbidity and its therapeutical benefit is still a matter of debate. The objective of this study was to develop a model that allows preoperative determination of the minimum number of lymph nodes needed to be removed at radical prostatectomy to ensure true nodal status.Methods:We analysed data from 4770 patients treated with radical prostatectomy and pelvic lymph node dissection between 2000 and 2011 from eight academic centres. For external validation of our model, we used data from a cohort of 3595 patients who underwent an anatomically defined extended pelvic lymph node dissection. We estimated the sensitivity of pathological nodal staging using a beta-binomial model and developed a novel clinical (preoperative) nodal staging score (cNSS), which represents the probability that a patient has lymph node metastasis as a function of the number of examined nodes.Results:In the development and validation cohorts, the probability of missing a positive lymph node decreases with increase in the number of nodes examined. A 90% cNSS can be achieved in the development and validation cohorts by examining 1-6 nodes in cT1 and 6-8 nodes in cT2 tumours. With 11 nodes examined, patients in the development and validation cohorts achieved a cNSS of 90% and 80% with cT3 tumours, respectively.Conclusions:Pelvic lymph node dissection is the only reliable technique to ensure accurate nodal staging in patients treated with radical prostatectomy for clinically localised prostate cancer. The minimum number of examined lymph nodes needed for accurate nodal staging may be predictable, being strongly dependent on prostate cancer characteristics at diagnosis. © 2014 Cancer Research UK.
- Published
- 2014
4. Association between awareness and knowledge of medication-overuse headache with medication-taking behavior among adults with migraine.
- Author
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Bailey SC, Pack AP, Zuleta A, Huang W, Herman MP, Kymes SM, Fiore D, and Curran Y
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- Humans, Male, Female, Adult, Middle Aged, Cross-Sectional Studies, Health Literacy, Analgesics adverse effects, Analgesics therapeutic use, Aged, Young Adult, Awareness, Migraine Disorders drug therapy, Health Knowledge, Attitudes, Practice, Headache Disorders, Secondary psychology
- Abstract
Frequent use of pain relief medications among patients with migraine can result in disease worsening and medication-overuse headache (MOH), a painful and debilitating condition. We sought to conduct a cross-sectional survey among adult patients diagnosed with migraine to determine: 1) their awareness of MOH, and 2) their knowledge of the condition and its prevention, and 3) the association of these factors with actual use of pain relief medications. We recruited and interviewed 200 English-speaking adults with migraine who had a clinic visit with a neurologist or primary care provider within the past month. Patients were identified via an electronic health record query. Almost 40% of participants had never heard of the term 'medication-overuse headache.' In bivariate analyses, participants who were Black or Hispanic and those with limited health literacy were less likely to have heard of MOH. Participants scored an average of 2.1 (range: 0-3) on a MOH knowledge measure; older participants, those with limited health literacy, lower education, and little or no migraine-related disability demonstrated less knowledge. Almost a third (31.5%) of patients reported overusing pain relief medication and were at risk for MOH. Overuse was not significantly associated with MOH awareness, knowledge, or sociodemographic factors, but was related to greater migraine-related disability. Our findings suggest that patient awareness and knowledge of MOH is suboptimal, particularly among older adults, racial and ethnic minority groups, and those with limited health literacy. Interventions are needed to prevent MOH and better inform patients about risks associated with frequent use of pain relief medications., Competing Interests: SCB reports grants from Merck, Pfizer, Gordon and Betty Moore Foundation, RRF Foundation for Aging, Lundbeck, Gilead and Eli Lilly through her institution; and personal fees from Gilead, Sanofi, Pfizer, University of Westminster, Lundbeck, and Luto outside the submitted work. APP reports grants from Merck, Pfizer, Gordon and Betty Moore Foundation, RRF Foundation for Aging, Lundbeck, Gilead, and Eli Lilly through her institution; and personal fees from Gilead. MPH and DF are employees of H. Lundbeck A/S and Lundbeck LLC, respectively. SMK was an employee of Lundbeck LLC at the time when this manuscript was written. All other study authors have no conflicts of interest to report., (Copyright: © 2024 Bailey et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
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5. Delayed opportunities for patient-provider communication about medication overuse headache: Mixed methods perspectives from patients and neurologists.
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Pack A, O'Conor R, Curran Y, Huang W, Zuleta A, Zuleta R, Herman MP, Kymes SM, and Bailey SC
- Abstract
Objectives: Medication overuse headache (MOH) is a common, debilitating condition occurring when migraine patients overuse pain relief medications. We conducted a convergent mixed methods study examining patient-provider communication on MOH., Methods: Migraine patients were identified from one academic health center via electronic health records. Research staff recruited patients and administered a remote survey on MOH awareness, knowledge, and communication; descriptive and bivariate analyses were conducted. Neurologists from the same health center were invited to participate in qualitative interviews; analysis drew from the Rapid Identification of Themes from Audio Recordings procedures. A side-by-side comparison of results followed., Results: Participants included 200 patients and 13 neurologists. More than one third of patients (39.5 %) had never heard of 'medication overuse headache.' Among those who had, 38.4 % learned about MOH ≥ 5 years after their migraine diagnosis. Neurologists similarly reported limited patient awareness of MOH and suggested communication was provider-initiated, reactive to patient-reported symptoms and behaviors. Participants agreed MOH was described as a 'consequence' of frequent medication taking, though specific terminology varied with neurologists suggesting they choose terms they perceive to be easier to understand and less stigmatizing to patients. Neurologists felt they lacked effective patient education resources., Conclusions: Findings reveal delayed opportunities to inform patients about MOH. Standardized education supporting early preventive communication is needed, perhaps in primary care where many patients seek initial care for migraine symptoms., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Dr. Pack reports grants from Merck, Pfizer, Gilead, Gordon and Betty Moore Foundation, RRF Foundation for Aging, Lundbeck, and Eli Lilly through her institution, and personal fees from Gilead. Dr. Bailey reports grants from the NIH, Gilead, Merck, Pfizer, Gordon and Betty Moore Foundation, RRF Foundation for Aging, Lundbeck, and Eli Lilly via her institution and personal fees from Gilead, Sanofi, Pfizer, University of Westminster, Lundbeck, and Luto UK outside the submitted work. Ms. Herman is employed full time by Lundbeck and Dr. Kymes was employed full time by Lundbeck at the time of the research., (© 2024 The Author(s).)
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- 2024
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6. Radiotherapy in the Management of Orbital Lymphoma: A Single Institution's Experience Over 4 Decades.
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Kharod SM, Herman MP, Morris CG, Lightsey J, Mendenhall WM, and Mendenhall NP
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- Adult, Aged, Aged, 80 and over, Cohort Studies, Disease-Free Survival, Female, Florida, Follow-Up Studies, Hospitals, University, Humans, Kaplan-Meier Estimate, Lymphoma pathology, Male, Middle Aged, Neoplasm Invasiveness pathology, Neoplasm Staging, Orbital Neoplasms pathology, Radiotherapy Dosage, Radiotherapy, Conformal adverse effects, Retrospective Studies, Risk Assessment, Survival Analysis, Time Factors, Treatment Outcome, Lymphoma mortality, Lymphoma radiotherapy, Orbital Neoplasms mortality, Orbital Neoplasms radiotherapy, Radiation Injuries prevention & control, Radiotherapy, Conformal methods
- Abstract
Purpose: To report our institution's treatment techniques, disease outcomes, and complication rates after radiotherapy for the management of lymphoma involving the orbits., Patients and Methods: We retrospectively reviewed the medical records of 44 patients curatively treated with radiotherapy for stage IAE (75%) or stage IIAE (25%) orbital lymphoma between 1969 and 2013. Median follow-up was 4.9 years. Thirty-eight patients (86%) had low-grade lymphoma and 6 (14%) had high-grade lymphoma. Radiation was delivered with either a wedge-pair (61%), single-anterior (34%), or anterior with bilateral wedges (5%) technique. The median radiation dose was 25.5 Gy (range, 15 to 47.5 Gy). Lens shielding was performed when possible. Cause-specific survival and freedom from distant relapse were calculated using the Kaplan-Meier method., Results: The 5-year local control rate was 98%. Control of disease in the orbit was achieved in all but 1 patient who developed an out-of-field recurrence after irradiation of a lacrimal tumor. The 5-year regional control rate was 91% (3 patients failed in the contralateral orbit and 1 patient failed in the ipsilateral parotid). Freedom from disease, cause-specific survival, and overall survival rates at 5 and 10 years were 70% and 55%, 89% and 89%, and 76% and 61%, respectively. Acute toxicity was minimal. Ten patients (23%) reported worsened vision following radiotherapy, and cataracts developed in 17 patients. Cataracts developed in 13 of 28 patients treated without lens shielding (46%) and 4 of 16 patients (25%) treated with lens shielding., Conclusion: Radiotherapy is a safe and effective local treatment in the management of orbital lymphoma.
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- 2018
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7. Fractionated Radiation Therapy for Benign Nonacoustic Schwannomas.
- Author
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Kharod SM, Herman MP, Amdur RJ, and Mendenhall WM
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- Adult, Aged, Cohort Studies, Disease-Free Survival, Female, Follow-Up Studies, Head and Neck Neoplasms pathology, Head and Neck Neoplasms surgery, Humans, Male, Middle Aged, Neurilemmoma pathology, Neurilemmoma surgery, Radiosurgery methods, Radiotherapy Dosage, Retrospective Studies, Risk Assessment, Survival Analysis, Time Factors, Treatment Outcome, Dose Fractionation, Radiation, Head and Neck Neoplasms mortality, Head and Neck Neoplasms radiotherapy, Neurilemmoma mortality, Neurilemmoma radiotherapy
- Abstract
Objectives: We analyzed the outcomes of patients with benign nonacoustic schwannomas treated with fractionated radiation therapy (RT)., Methods: Between October 1987 and March 2013, 11 patients with benign nonacoustic schwannomas diagnosed radiographically (n=3) or pathologically (n=8) were treated with fractionated RT with curative intent at the University of Florida. We reviewed patients' medical records to assess outcomes and toxicities from treatment., Results: The median follow-up for all patients was 8.2 years (range, 2.2 to 22.7 y) and 8 years for all living patients (range, 2.2 to 22.7 y). Of the 11 patients included in the analysis, 8 (73%) were treated solely with RT, 1 (9%) was treated with postoperative RT after subtotal resection, and 2 (18%) were treated with postoperative RT after recurrence following initial surgical resection. The 5-year overall survival, disease-free survival, and local control rates were 100%. There were no grade 2 to 5 treatment toxicities., Conclusions: RT for benign nonacoustic schwannoma may be effective when used alone or in addition to surgery. Irradiation should be considered in patients for whom resection is likely to result in one or more neurological deficits. Fractionated RT to a total dose of 50 Gy provides excellent local control and minimal morbidity.
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- 2018
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8. Elective neck management for squamous cell carcinoma metastatic to the parotid area lymph nodes.
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Herman MP, Amdur RJ, Werning JW, Dziegielewski P, Morris CG, and Mendenhall WM
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- Adult, Aged, Aged, 80 and over, Carcinoma, Squamous Cell secondary, Disease Management, Elective Surgical Procedures, Female, Humans, Lymph Nodes pathology, Lymphatic Metastasis, Male, Middle Aged, Neoplasm Staging, Parotid Neoplasms secondary, Retrospective Studies, Carcinoma, Squamous Cell radiotherapy, Carcinoma, Squamous Cell surgery, Neck Dissection, Parotid Neoplasms radiotherapy, Parotid Neoplasms surgery, Skin Neoplasms pathology
- Abstract
The objective of this study is to determine if radiotherapy (RT) alone to the cervical lymphatics is a suitable alternative to elective neck dissection (END) in patients who undergo parotidectomy and postoperative RT for squamous cell carcinoma metastatic to the parotid area lymph nodes (PALN). We retrospectively reviewed the medical records of 107 patients consecutively treated from November 1969 to March 2012 for cutaneous squamous cell carcinoma metastatic to the PALN with a clinically node-negative neck. Primary therapy consisted of parotidectomy in all cases. We compared regional (cervical) control in two subgroups: 42 patients treated with END and RT and 65 patients treated with elective neck irradiation (ENI) alone. The median time of follow-up was 5.5 years (range 0.3-30 years) for all patients and 11 years for living patients (range 1.8-26 years). There was 1 neck recurrence in each subgroup: END and RT, 1/42 (2 %); and ENI alone, 1/65 (1.5 %). No patient experienced a complication related to neck RT. ENI to a dose of approximately 50-60 Gy is a suitable alternative to END and postoperative RT in patients with squamous cell carcinoma metastatic to the PALN.
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- 2016
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9. Ipsilateral radiotherapy for squamous cell carcinoma of the tonsil.
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Kennedy WR, Herman MP, Deraniyagala RL, Amdur RJ, Werning JW, Dziegielewski PT, Morris CG, and Mendenhall WM
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- Adult, Aged, Analysis of Variance, Carcinoma, Squamous Cell drug therapy, Carcinoma, Squamous Cell mortality, Carcinoma, Squamous Cell pathology, Female, Follow-Up Studies, Humans, Incidence, Lymph Nodes pathology, Male, Middle Aged, Neck Dissection statistics & numerical data, Neoplasm Staging, Palate, Soft pathology, Radiotherapy adverse effects, Radiotherapy methods, Retrospective Studies, Survival Rate, Time Factors, Tongue pathology, Tonsillar Neoplasms drug therapy, Tonsillar Neoplasms mortality, Tonsillar Neoplasms pathology, Treatment Outcome, Carcinoma, Squamous Cell surgery, Palatine Tonsil, Tonsillar Neoplasms radiotherapy
- Abstract
The purpose of this study is to update our institution's experience with ipsilateral radiation therapy (RT) for squamous cell carcinoma of the tonsillar area. Outcome study of 76 patients treated between 1984 and 2012 with ipsilateral RT for squamous cell carcinoma of the tonsil. Patients had either cT1 (n = 41, 54 %) or cT2 (n = 35, 46 %) primaries and cN0 (n = 27, 36 %), cN1 (n = 15, 20 %), cN2a (n = 8, 11 %), or cN2b (n = 26, 34 %) nodal disease. Of these, 32 (42 %) patients underwent a planned neck dissection and 21 (28 %) patients received concomitant chemotherapy. Median follow-up for all patients was 7.1 years (range 0.1-27.2) and 7.8 years (range 2.1-27.2 years) for living patients. The 2- and 5-year control and survival rates were as follows: local control, 98.6 and 96.9 %; local-regional control 95.8 and 92.6 %; cause-specific survival 95.9 and 93.1 %; and overall survival, 92.1 and 83.8 %. One patient failed in the contralateral, non-radiated neck 3 years after primary treatment. Univariate analysis revealed that overall survival was significantly influenced by whether the patient had a primary tumor in the anterior tonsillar pillar versus the tonsillar fossa with the latter performing better. The incidence of severe late complications was 16 %. Ipsilateral RT for patients with squamous cell carcinoma of the anterior tonsillar pillar or tonsillar fossa with no base of tongue or soft palate extension is an efficacious treatment that provides excellent control rates with a relatively low incidence of late complications.
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- 2016
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10. Radiotherapy alone or combined with chemotherapy as definitive treatment for squamous cell carcinoma of the tonsil.
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Kennedy WR, Herman MP, Deraniyagala RL, Amdur RJ, Werning JW, Dziegielewski P, Kirwan J, Morris CG, and Mendenhall WM
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- Adult, Aged, Aged, 80 and over, Carcinoma, Squamous Cell mortality, Carcinoma, Squamous Cell pathology, Combined Modality Therapy methods, Dose Fractionation, Radiation, Female, Follow-Up Studies, Humans, Incidence, Induction Chemotherapy methods, Male, Middle Aged, Multivariate Analysis, Neck Dissection, Neoplasm Staging, Palate, Soft pathology, Radiotherapy adverse effects, Survival Rate, Time Factors, Tonsillar Neoplasms mortality, Tonsillar Neoplasms pathology, Carcinoma, Squamous Cell drug therapy, Carcinoma, Squamous Cell radiotherapy, Tonsillar Neoplasms drug therapy, Tonsillar Neoplasms radiotherapy
- Abstract
This study is aimed at updating our institution's experience with definitive radiotherapy (RT) for squamous cell carcinoma of the tonsil. We reviewed 531 patients treated between 1983 and 2012 with definitive RT for squamous cell carcinoma of the tonsil. Of these, 179 patients were treated with either induction (n = 19) or concomitant (n = 160) chemotherapy. Planned neck dissection was performed on 217 patients: unilaterally in 199 and bilaterally in 18 patients. Median follow-up was 5.2 years for all patients (range 0.1-31.6 years) and 8.2 years for living patients (range 1.9-31.6 years). The 5-year local control rates by T stage were as follows: T1, 94 %; T2, 87 %; T3 79 %; T4, 70 %; and overall, 83 %. Multivariate analysis revealed that local control was significantly influenced by T stage and neck dissection. The 5-year cause-specific survival rates by overall stage were as follows: I, 94 %; II, 88 %; III, 87 %; IVA, 75 %; IVB, 52 %; and overall, 78 %. Multivariate analysis revealed that cause-specific survival was significantly influenced by T stage, N stage, overall stage, fractionation, neck dissection, sex, and ethnicity. Of 77 patients treated with ipsilateral fields only, contralateral neck failure occurred in 1 %. The rate of severe complications was 12 %. Definitive RT for patients with tonsillar squamous cell carcinoma provides control rates equivalent to other modalities with a comparatively low incidence of late complications. Patients with anterior tonsillar pillar or tonsillar fossa primaries that are well lateralized with no base of tongue or soft palate extension may be treated with ipsilateral fields.
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- 2016
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11. Postoperative radiotherapy for patients at high risk of recurrence of oral cavity squamous cell carcinoma.
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Herman MP, Dagan R, Amdur RJ, Morris CG, Werning JW, Vaysberg M, and Mendenhall WM
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- Adult, Aged, Aged, 80 and over, Carcinoma, Squamous Cell surgery, Disease-Free Survival, Female, Follow-Up Studies, Humans, Incidence, Male, Middle Aged, Mouth Neoplasms surgery, Neoplasm Recurrence, Local epidemiology, Prognosis, Retrospective Studies, Risk Factors, Survival Rate trends, United States epidemiology, Carcinoma, Squamous Cell radiotherapy, Mouth Neoplasms radiotherapy, Neoplasm Recurrence, Local radiotherapy, Postoperative Care methods
- Abstract
Objectives: To evaluate the efficacy of postoperative radiotherapy for oral cavity squamous cell carcinoma (OCSCC) by comparing outcomes of high-risk subgroups., Study Design: Retrospective review., Methods: Outcome study of 139 patients with OCSCC treated with gross total resection and postoperative radiotherapy ± chemotherapy and at least one high-risk pathologic finding: positive margin (52%), close (0.1-5 mm) margin (27%), or extracapsular nodal extension (ECE; 45%)., Results: Median follow-up was 2.3 years. Local-regional control (LRC), freedom from distant metastases, cause-specific survival, and overall survival (OS) rates at 5 years were 64%, 85%, 51%, and 36%, respectively. Five-year LRC for negative (>5 mm), close (0.1-5 mm), and positive (carcinoma in situ or tumor at ink) margins were 73%, 83%, and 63%, respectively (P = not significant). Five-year neck control was 100% for node-negative patients, 88% for node-positive patients with no ECE, and 86% for node-positive patients with ECE (P = not significant). The combination of close/positive margin and ECE resulted in worse 5-year LRC (37% vs. 70%, P < 0.001), progression-free survival (26% vs. 60%, P < 0.001), and OS (13 vs. 43%, P < 0.001) compared with a single high-risk indication., Conclusions: Local-regional control was the predominant mode of treatment failure. Outcome in our series was not statistically different based on margin status or nodal ECE. This finding is indirect evidence of the efficacy of adjuvant radiotherapy in this setting., (© 2014 The American Laryngological, Rhinological and Otological Society, Inc.)
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- 2015
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12. Perivascular epithelioid cell tumour of the bladder.
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Tarplin S, Osterberg EC, Robinson BD, Herman MP, and Rosoff JS
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- Adult, Cystectomy, Diagnosis, Differential, Female, Humans, Magnetic Resonance Imaging, Perivascular Epithelioid Cell Neoplasms surgery, Urinary Bladder Neoplasms surgery, Perivascular Epithelioid Cell Neoplasms diagnosis, Urinary Bladder pathology, Urinary Bladder Neoplasms diagnosis
- Abstract
A 39-year-old woman presented with a long history of pelvic pain and urinary urgency. Prior workup by her primary care doctor had been negative. The patient's gynaecologist ultimately referred her to a urologist following an ultrasound that revealed a possible bladder mass. MRI of the abdomen and pelvis demonstrated a 4 cm soft tissue lesion arising from the bladder. Cystoscopy showed an atypical mass on the anterior bladder wall, and pathological examination of the TURBT (transurethral resection of the bladder tumour) specimen revealed a perivascular epithelioid cell tumour (PEComa) with involvement of the detrusor muscle. The patient underwent a robotically assisted laparoscopic partial cystectomy. Final pathology confirmed a PEComa with negative margins. The patient had an uncomplicated postoperative course and is doing well following surgery. A surveillance cystoscopy at 6 months showed no evidence of recurrence. This case underscores the variability of clinical presentation of PEComas while proposing an appropriate method of surgical management., (2014 BMJ Publishing Group Ltd.)
- Published
- 2014
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13. Clinical nodal staging scores for prostate cancer: a proposal for preoperative risk assessment.
- Author
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Kluth LA, Abdollah F, Xylinas E, Rieken M, Fajkovic H, Seitz C, Sun M, Karakiewicz PI, Schramek P, Herman MP, Becker A, Hansen J, Ehdaie B, Loidl W, Pummer K, Lee RK, Lotan Y, Scherr DS, Seiler D, Ahyai SA, Chun FK, Graefen M, Tewari A, Nonis A, Bachmann A, Montorsi F, Gönen M, Briganti A, and Shariat SF
- Subjects
- Aged, Aged, 80 and over, Cohort Studies, Humans, Lymph Node Excision, Lymphatic Metastasis, Male, Middle Aged, Neoplasm Staging, Prostatectomy, Prostatic Neoplasms surgery, Risk Assessment, Prostatic Neoplasms pathology
- Abstract
Background: Pelvic lymph node dissection in patients undergoing radical prostatectomy for clinically localised prostate cancer is not without morbidity and its therapeutical benefit is still a matter of debate. The objective of this study was to develop a model that allows preoperative determination of the minimum number of lymph nodes needed to be removed at radical prostatectomy to ensure true nodal status., Methods: We analysed data from 4770 patients treated with radical prostatectomy and pelvic lymph node dissection between 2000 and 2011 from eight academic centres. For external validation of our model, we used data from a cohort of 3595 patients who underwent an anatomically defined extended pelvic lymph node dissection. We estimated the sensitivity of pathological nodal staging using a beta-binomial model and developed a novel clinical (preoperative) nodal staging score (cNSS), which represents the probability that a patient has lymph node metastasis as a function of the number of examined nodes., Results: In the development and validation cohorts, the probability of missing a positive lymph node decreases with increase in the number of nodes examined. A 90% cNSS can be achieved in the development and validation cohorts by examining 1-6 nodes in cT1 and 6-8 nodes in cT2 tumours. With 11 nodes examined, patients in the development and validation cohorts achieved a cNSS of 90% and 80% with cT3 tumours, respectively., Conclusions: Pelvic lymph node dissection is the only reliable technique to ensure accurate nodal staging in patients treated with radical prostatectomy for clinically localised prostate cancer. The minimum number of examined lymph nodes needed for accurate nodal staging may be predictable, being strongly dependent on prostate cancer characteristics at diagnosis.
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- 2014
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14. Multi-institutional validation of the ability of preoperative hydronephrosis to predict advanced pathologic tumor stage in upper-tract urothelial carcinoma.
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Messer JC, Terrell JD, Herman MP, Ng CK, Scherr DS, Scoll B, Boorjian SA, Uzzo RG, Wille M, Eggener SE, Lucas SM, Lotan Y, Shariat SF, and Raman JD
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- Aged, Aged, 80 and over, Carcinoma, Transitional Cell complications, Cohort Studies, Databases, Factual, Female, Humans, Hydronephrosis diagnosis, Hydronephrosis pathology, Magnetic Resonance Imaging, Male, Middle Aged, Multivariate Analysis, Neoplasm Invasiveness, Nephrectomy methods, Tomography, X-Ray Computed, Treatment Outcome, Ureter surgery, Ureteral Neoplasms complications, Urinary Bladder Neoplasms complications, Carcinoma, Transitional Cell diagnosis, Hydronephrosis complications, Ureteral Neoplasms diagnosis, Urinary Bladder Neoplasms diagnosis
- Abstract
Objective: The presence of hydronephrosis (HN) has been implicated as a predictor of poor outcomes for patients diagnosed with bladder cancer. Small, single institution preliminary reports suggest a similar negative relationship may exist for upper-tract urothelial carcinoma (UTUC). Herein, we attempt to validate the prognostic value of preoperative HN in a large, multi-institutional cohort of UTUC patients., Materials and Methods: Data on 469 patients with localized UTUC from 5 tertiary referral centers who underwent a radical nephroureterectomy (91%) or distal ureterectomy (9%) without neoadjuvant chemotherapy were integrated into a relational database. Preoperative HN data, including presence vs. absence and high vs. low grade, were available in 408 patients. The association of HN with pathologic features was evaluated., Results: A total of 254 men and 154 women with a median age of 69 years (IQR 15) were analyzed. Overall, 192 patients (47%) had ≥pT2 disease, 145 (36%) had non-organ-confined (NOC) cancers (≥pT3 and/or positive lymph nodes), and 298 (73%) had high grade UTUC on final pathology. Forty-six percent of patients had tumors in the renal pelvis, 27% in the ureter, and 27% in both locations. Preoperatively, 223 patients (55%) were noted to have ipsilateral HN (39% low grade and 61% high grade). Hydronephrosis was associated with ≥pT2 stage (P < 0.001), NOC disease (P < 0.001), and high grade cancers (P = 0.04). On multivariate analysis adjusting for gender, age, and tumor location, HN was an independent predictor of muscle invasive (HR 7.4, P < 0.001), NOC (HR 5.5, P < 0.001), and high pathologic grade (HR 1.6, P = 0.03) UTUC disease., Conclusion: The presence of preoperative HN was associated with advanced stage UTUC. This readily available imaging modality may improve preoperative risk stratification for UTUC patients thereby guiding use of endoscopic versus extirpative surgery as well as the need for neoadjuvant chemotherapy regimens., (Copyright © 2013 Elsevier Inc. All rights reserved.)
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- 2013
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15. Elective neck management for high-grade salivary gland carcinoma.
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Herman MP, Werning JW, Morris CG, Kirwan JM, Amdur RJ, and Mendenhall WM
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- Adenocarcinoma radiotherapy, Adolescent, Adult, Aged, Aged, 80 and over, Carcinoma, Adenoid Cystic radiotherapy, Carcinoma, Adenoid Cystic surgery, Carcinoma, Mucoepidermoid radiotherapy, Carcinoma, Mucoepidermoid surgery, Elective Surgical Procedures, Female, Humans, Male, Middle Aged, Neoplasm Recurrence, Local surgery, Radiotherapy, Adjuvant, Retrospective Studies, Salivary Gland Neoplasms radiotherapy, Young Adult, Adenocarcinoma surgery, Lymph Node Excision, Salivary Gland Neoplasms surgery
- Abstract
Purpose: To determine whether patients with clinically node negative (cNo) high grade salivary gland carcinomas benefit from an elective neck dissection prior to postoperative radiotherapy (RT)., Material/methods: Between October 1964 and October 2009, 59 previously untreated patients with cNo high-grade salivary gland carcinomas (squamous cell carcinomas were excluded) were treated with curative intent using elective neck dissection (END; n=41), or elective neck irradiation (ENI; n=18) at the University of Florida College of Medicine (Gainesville, FL). All patients underwent resection of the primary cancer followed by postoperative RT. The median follow-up period was 5.2years (range, 0.3-34years)., Results: Occult metastases were found in 18 (44%) of the 41 patients in the END group. There were 4 recurrences (10%) in the END group and 0 recurrence in the ENI group. Neck control rates at 5years were: END, 90%; ENI, 100%; and overall, 93% (p=0.1879). Cause-specific survival was 94% in the ENI group, 84% in the END group, and 86% for all patients (p=0.6998). There were 3 reported grade 3 or 4 toxicities. Two patients had a postoperative fistula and one patient had a grade 4 osteoradionecrosis that required a partial mandibulectomy., Conclusions: Patients with cNo high grade salivary gland carcinomas who are planned to undergo surgery and postoperative RT likely do not benefit from a planned neck dissection., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
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16. High-grade ureteroscopic biopsy is associated with advanced pathology of upper-tract urothelial carcinoma tumors at definitive surgical resection.
- Author
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Clements T, Messer JC, Terrell JD, Herman MP, Ng CK, Scherr DS, Scoll B, Boorjian SA, Uzzo RG, Wille M, Eggener SE, Lucas SM, Lotan Y, Shariat SF, and Raman JD
- Subjects
- Adult, Aged, Aged, 80 and over, Biopsy, Female, Humans, Male, Middle Aged, Multivariate Analysis, Muscles pathology, Neoplasm Invasiveness, Carcinoma, Transitional Cell pathology, Carcinoma, Transitional Cell surgery, Ureteral Neoplasms pathology, Ureteral Neoplasms surgery, Ureteroscopy methods, Urothelium pathology, Urothelium surgery
- Abstract
Background and Purpose: Accurate assessment of upper-tract urothelial carcinoma (UTUC) pathology may guide use of endoscopic vs extirpative therapy. We present a multi-institutional cohort of patients with UTUC who underwent surgical resection to characterize the association of ureteroscopic (URS) biopsy features with final pathology results., Patients and Methods: URS biopsy data were available in 238 patients who underwent surgical resection of UTUC. Biopsies were performed using a brush biopsy kit, mechanical biopsy device, or basket. Stage was classified as a positive brush, nonmuscle-invasive (
- Published
- 2012
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17. Urinary cytology has a poor performance for predicting invasive or high-grade upper-tract urothelial carcinoma.
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Messer J, Shariat SF, Brien JC, Herman MP, Ng CK, Scherr DS, Scoll B, Uzzo RG, Wille M, Eggener SE, Steinberg G, Terrell JD, Lucas SM, Lotan Y, Boorjian SA, and Raman JD
- Subjects
- Aged, Cohort Studies, Cytodiagnosis, Female, Humans, Male, Neoplasm Staging, Predictive Value of Tests, Retrospective Studies, Biomarkers, Tumor urine, Carcinoma, Transitional Cell pathology, Carcinoma, Transitional Cell urine, Urinary Bladder Neoplasms pathology, Urinary Bladder Neoplasms urine
- Abstract
Objective: • To evaluate the diagnostic accuracy of urine cytology for detecting aggressive disease in a multi-institutional cohort of patients undergoing extirpative surgery for upper-tract urothelial carcinoma (UTUC)., Methods: • We reviewed the records of 326 patients with urinary cytology data who underwent a radical nephroureterectomy or distal ureterectomy without concurrent or previous bladder cancer. • We assessed the association of cytology (positive, negative and atypical) with final pathology. Sensitivity and positive predictive value (PPV) of a positive (± atypical) cytology for high-grade and muscle-invasive UTUC was calculated., Results: • On final pathology, 53% of patients had non-muscle invasive disease (pTa, pTis, pT1) and 47% had invasive disease (≥ pT2). Low-grade and high-grade cancers were present in 33% and 67% of patients, respectively. • Positive, atypical and negative urine cytology was noted in 40%, 40% and 20% of cases. Positive urinary cytology had sensitivity and PPV of 56% and 54% for high-grade and 62% and 44% for muscle-invasive UTUC. • Inclusion of atypical cytology with positive cytology improved the sensitivity and PPV for high-grade (74% and 63%) and muscle-invasive (77% and 45%) UTUC. Restricting analysis to patients with selective ureteral cytologies further improved the diagnostic accuracy when compared with bladder specimens (PPV > 85% for high-grade and muscle-invasive UTUC)., Conclusions: • In this cohort of patients with UTUC treated with radical surgery, urine cytology in isolation lacked performance characteristics to accurately predict muscle-invasive or high-grade disease. • Improved surrogate markers for pathological grade and stage are necessary, particularly when considering endoscopic modalities for UTUC., (© 2011 THE AUTHORS. BJU INTERNATIONAL © 2011 BJU INTERNATIONAL.)
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- 2011
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18. Simultaneous bilateral single-port radical nephrectomies.
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Herman MP and Del Pizzo JJ
- Subjects
- Carcinoma, Renal Cell diagnosis, Dissection methods, Humans, Kidney Neoplasms diagnosis, Kidney Transplantation, Magnetic Resonance Imaging, Male, Middle Aged, Carcinoma, Renal Cell surgery, Kidney Neoplasms surgery, Laparoscopy methods, Nephrectomy methods
- Abstract
The management of bilateral enhancing renal masses can be technically challenging. Simultaneous bilateral laparoscopic nephrectomies in postrenal transplant patients have been previously described, but these typically require multiple port placements in addition to a hand port. Herein, we describe simultaneous bilateral single-port laparoscopic radical nephrectomies in a postrenal transplant patient.
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- 2011
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19. Preoperative hydronephrosis, ureteroscopic biopsy grade and urinary cytology can improve prediction of advanced upper tract urothelial carcinoma.
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Brien JC, Shariat SF, Herman MP, Ng CK, Scherr DS, Scoll B, Uzzo RG, Wille M, Eggener SE, Terrell JD, Lucas SM, Lotan Y, Boorjian SA, and Raman JD
- Subjects
- Aged, Biopsy, Carcinoma, Transitional Cell surgery, Chi-Square Distribution, Female, Humans, Logistic Models, Lymphatic Metastasis, Male, Neoplasm Invasiveness, Neoplasm Staging, Nephrectomy methods, Predictive Value of Tests, Retrospective Studies, Ureteral Neoplasms surgery, Urinary Bladder Neoplasms surgery, Carcinoma, Transitional Cell pathology, Hydronephrosis pathology, Ureteral Neoplasms pathology, Ureteroscopy, Urinary Bladder Neoplasms pathology, Urine cytology
- Abstract
Purpose: We evaluated the value of hydronephrosis, ureteroscopic biopsy grade and urinary cytology to predict advanced upper tract urothelial carcinoma., Materials and Methods: We reviewed the charts of 469 patients with upper tract urothelial carcinoma treated with radical nephroureterectomy or distal ureterectomy. Complete data on hydronephrosis (present vs absent), ureteroscopic grade (high vs low) and urinary cytology (positive vs negative) were available in 172 patients. The outcome was muscle invasive (pT2-pT4) or nonorgan confined (pT3 or greater, or lymph node metastasis) upper tract urothelial carcinoma., Results: Of the patients 92 (54%) had hydronephrosis, 74 (43%) had high grade disease on ureteroscopic biopsy and 137 (80%) had positive cytology. On univariate analysis hydronephrosis (p <0.001), high ureteroscopic grade (p <0.001) and positive cytology (p = 0.03) were associated with muscle invasive and nonorgan confined disease. On multivariate analysis adjusting for tumor site, gender and age hydronephrosis and high ureteroscopic grade were associated with muscle invasive carcinoma (HR 12.0 and 4.5, respectively, each p <0.001) but cytology was not (HR 2.3, p = 0.17). However, all 3 variables were independently associated with nonorgan confined disease (HR 5.1, p <0.001; HR 3.9, p <0.001; and HR 3.1, p = 0.035, respectively). Combining these 3 tests incrementally improved the prediction of upper tract urothelial carcinoma stage. Abnormality of all 3 tests had 89% and 73% positive predictive value for muscle invasive and nonorgan confined upper tract urothelial carcinoma, respectively, but when all tests were normal, the negative predictive value was 100%., Conclusions: Preoperative evaluation for hydronephrosis, ureteroscopic grade and cytology can identify patients at risk for advanced upper tract urothelial carcinoma. Such knowledge may impact surgery choice and extent as well as the need for perioperative chemotherapy regimens., (Copyright (c) 2010 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.)
- Published
- 2010
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20. Techniques and predictive models to improve prostate cancer detection.
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Herman MP, Dorsey P, John M, Patel N, Leung R, and Tewari A
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- Bayes Theorem, Forecasting, Humans, Male, Neural Networks, Computer, Nomograms, Risk Assessment, Models, Statistical, Prostate-Specific Antigen analysis, Prostatic Neoplasms diagnosis
- Abstract
The use of prostate-specific antigen (PSA) as a screening test remains controversial. There have been several attempts to refine PSA measurements to improve its predictive value. These modifications, including PSA density, PSA kinetics, and the measurement of PSA isoforms, have met with limited success. Therefore, complex statistical and computational models have been created to assess an individual's risk of prostate cancer more accurately. In this review, the authors examined the methods used to modify PSA as well as various predictive models used in prostate cancer detection. They described the mathematical underpinnings of these techniques along with their intrinsic strengths and weaknesses, and they assessed the accuracy of these methods, which have been shown to be better than physicians' judgment at predicting a man's risk of cancer. Without understanding the design and limitations of these methods, they can be applied inappropriately, leading to incorrect conclusions. These models are important components in counseling patients on their risk of prostate cancer and also help in the design of clinical trials by stratifying patients into different risk categories. Thus, it is incumbent on both clinicians and researchers to become familiar with these tools. Cancer 2009;115(13 suppl):3085-99. (c) 2009 American Cancer Society.
- Published
- 2009
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21. Sacral insufficiency fractures after preoperative chemoradiation for rectal cancer: incidence, risk factors, and clinical course.
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Herman MP, Kopetz S, Bhosale PR, Eng C, Skibber JM, Rodriguez-Bigas MA, Feig BW, Chang GJ, Delclos ME, Krishnan S, Crane CH, and Das P
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- Adenocarcinoma surgery, Adult, Aged, Aged, 80 and over, Combined Modality Therapy methods, Female, Humans, Incidence, Male, Middle Aged, Multivariate Analysis, Pain drug therapy, Pain etiology, Radiotherapy Dosage, Rectal Neoplasms surgery, Risk Factors, Sacrum radiation effects, Sex Factors, Spinal Fractures drug therapy, Spinal Fractures epidemiology, Young Adult, Adenocarcinoma drug therapy, Adenocarcinoma radiotherapy, Rectal Neoplasms drug therapy, Rectal Neoplasms radiotherapy, Sacrum injuries, Spinal Fractures etiology
- Abstract
Purpose: Sacral insufficiency (SI) fractures can occur as a late side effect of pelvic radiation therapy. Our goal was to determine the incidence, risk factors, and clinical course of SI fractures in patients treated with preoperative chemoradiation for rectal cancer., Materials and Methods: Between 1989 and 2004, 562 patients with non-metastatic rectal adenocarcinoma were treated with preoperative chemoradiation followed by mesorectal excision. The median radiotherapy dose was 45 Gy. The hospital records and radiology reports of these patients were reviewed to identify those with pelvic fractures. Radiology images of patients with pelvic fractures were then reviewed to identify those with SI fractures., Results: Among the 562 patients, 15 had SI fractures. The 3-year actuarial rate of SI fractures was 3.1%. The median time to SI fractures was 17 months (range, 2-34 months). The risk of SI fractures was significantly higher in women compared to men (5.8% vs. 1.6%, p = 0.014), and in whites compared with non-whites (4% vs. 0%, p = 0.037). On multivariate analysis, gender independently predicted for the risk of SI fractures (hazard ratio, 3.25; p = 0.031). Documentation about the presence or absence of pain was available for 13 patients; of these 7 (54%) had symptoms requiring pain medications. The median duration of pain was 22 months. No patient required hospitalization or invasive intervention for pain control., Conclusions: SI fractures were uncommon in patients treated with preoperative chemoradiation for rectal cancer. The risk of SI fractures was significantly higher in women. Most cases of SI fractures can be managed conservatively with pain medications.
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- 2009
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22. Value of serum antisperm antibodies in diagnosing obstructive azoospermia.
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Lee R, Goldstein M, Ullery BW, Ehrlich J, Soares M, Razzano RA, Herman MP, Callahan MA, Li PS, Schlegel PN, and Witkin SS
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- Adult, Azoospermia etiology, Humans, Male, Middle Aged, Autoantibodies blood, Azoospermia blood, Azoospermia diagnosis, Spermatozoa immunology
- Abstract
Purpose: The requisite presence of active spermatogenesis for antisperm antibody production may be useful in identifying obstructive azoospermia. The diagnostic performance of serum antisperm antibody was evaluated as a test for obstructive azoospermia., Materials and Methods: A total of 484 men with male infertility who had undergone antisperm antibody testing were evaluated. Demographic data, patient history, and followup were recorded. Obstruction was confirmed by surgical exploration. Sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios were calculated to quantify diagnostic performance. ROC curves were calculated and compared., Results: Of 484 men 272 possessed documented obstruction of the vas or epididymis and 212 had documented infertility without azoospermia. The obstructed group had significantly increased antisperm antibody levels compared to the nonobstructed group. IgG, IgA, and IgM were analyzed as diagnostic tests for obstruction. The AUC for IgG, IgA and IgM ROC curves was 0.92, 0.85 and 0.67, respectively. The AUC for serum IgG against sperm tails was 0.92, 0.87 against sperm heads and 0.79 against sperm midpieces. IgG demonstrated the highest sensitivity (85%) with a specificity of 97% (chi-square test p <0.01). IgA possessed the highest specificity (99%), positive predictive value (99%) and positive likelihood ratio (70.0)., Conclusions: The presence of serum antisperm antibody was highly accurate in predicting obstructive azoospermia, particularly after vasectomy. It can obviate the need for testis biopsy, the current but more invasive and costly gold standard of detection. This allows the surgeon to proceed directly to surgical reconstruction or sperm retrieval after a simple blood test.
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- 2009
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23. Urine-based biomarkers for the early detection and surveillance of non-muscle invasive bladder cancer.
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Herman MP, Svatek RS, Lotan Y, Karakiewizc PI, and Shariat SF
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- Adjuvants, Immunologic urine, Carcinoma, Transitional Cell diagnosis, Cysteine Proteinase Inhibitors urine, Cystoscopy, Fas Ligand Protein urine, Humans, Hyaluronic Acid urine, Hyaluronoglucosaminidase urine, In Situ Hybridization, Fluorescence, Inhibitor of Apoptosis Proteins, Lewis X Antigen urine, Microtubule-Associated Proteins urine, Nuclear Proteins urine, Prognosis, Sensitivity and Specificity, Survivin, Telomerase urine, Urinary Bladder Neoplasms diagnosis, Biomarkers, Tumor urine, Carcinoma, Transitional Cell urine, Population Surveillance methods, Urinary Bladder Neoplasms urine
- Abstract
Bladder cancer has a very high frequency of recurrence and therefore requires lifelong surveillance, traditionally consisting of serial cystoscopy and cytology. These tests are both invasive and expensive, with considerable inter-user and inter-institutional variability. In addition, the sensitivity of cytology in detecting low-grade tumors is low. Therefore, there has been active investigation into urinary biomarkers that can either supplement or supplant these tests. At this point there are only six urine-based tests that are FDA-approved in bladder cancer surveillance, but a wide variety of other biomarkers are being studied. In this review, we examine the natural history of bladder cancer as well as the rationale and performance of an ideal urinary biomarker. The authors describe the FDA-approved biomarkers such as Bladder Tumor Antigen, ImmunoCyt, Nuclear Matrix Protein-22, and Fluorescent In Situ Hybridization, as well as the most promising investigational tests (i.e., Urinary bladder cancer test, BLCA-1, BLCA-4, hyaluronic acid, hyaluronidase, Lewis X antigen, microsatellite analysis, Quanticyt, soluble Fas, Survivin, and telomerase). The biological foundation, methodologies, and diagnostic performance of the biomarkers are discussed. The characteristics of the biomarkers are compared to urine cytology. At this time, urine biomarkers are utilized in a variety of clinical situations but their role is not well defined. The goal of identifying an optimal marker that will replace cystoscopy and/or cytology is still ongoing.
- Published
- 2008
24. Increasing body mass index negatively impacts outcomes following robotic radical prostatectomy.
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Herman MP, Raman JD, Dong S, Samadi D, and Scherr DS
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- Aged, Body Mass Index, Comorbidity, Humans, Male, Middle Aged, Obesity epidemiology, Prostatic Neoplasms epidemiology, Prostatic Neoplasms surgery, Quality of Life, Treatment Outcome, Prostatectomy adverse effects, Prostatectomy methods, Robotics
- Abstract
Objective: To clarify the impact of increasing body mass index (BMI) on outcomes following robotic radical prostatectomy., Methods: From January 2003 to May 2005, 132 patients with clinically localized prostate cancer underwent a robotic radical prostatectomy. Patients were divided into 3 cohorts based on BMI: 38 normal (range, 18 to 24.9), 60 overweight (range, 25 to 29.9), and 34 obese (BMI>30)., Results: The operative time was significantly longer in obese (304 min) men compared with overweight (235 min) and normal (238 min) BMI patients (P<0.001). Estimated blood loss was significantly greater in both the obese (316 mL) and overweight (318 mL) groups compared with men with normal BMI (234 mL) (P<0.005). Three patients (1 obese and 2 overweight) required conversion to open surgery. Twenty-three of 132 men (17%) had a positive surgical margin, with obese (21%) and overweight (20%) men at a greater risk compared with normal BMI men (11%). No significant differences existed between groups with regard to final pathologic stage, Gleason score, biochemical recurrence at 1-year, and postoperative complication rate., Conclusion: Overweight and obese men had a longer operative duration, greater blood loss, longer hospital duration, and higher positive surgical margin rate. Robotic prostatectomy in men with elevated BMI is technically more challenging and is associated with more operative morbidity.
- Published
- 2007
25. The influence of clinical and pathological stage discrepancy on cancer specific survival in patients treated for renal cell carcinoma.
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Svatek RS, Lotan Y, Herman MP, Duchene DA, Sagalowsky AI, and Cadeddu JA
- Subjects
- Adult, Aged, Aged, 80 and over, Carcinoma, Renal Cell surgery, Disease-Free Survival, Humans, Kidney Neoplasms surgery, Laparoscopy, Middle Aged, Neoplasm Staging, Retrospective Studies, Survival Rate, Treatment Outcome, Carcinoma, Renal Cell mortality, Carcinoma, Renal Cell pathology, Kidney Neoplasms mortality, Kidney Neoplasms pathology, Nephrectomy
- Abstract
Purpose: We compared clinical and pathological staging in a contemporary, consecutive series of patients treated with partial or radical nephrectomy for renal cell carcinoma and we determined the effect of clinical and pathological stage discrepancy on outcomes., Materials and Methods: We collected retrospective clinical, pathological and survival data on 264 consecutive patients with clinical T1-3 renal cell carcinoma who were treated with laparoscopic or open partial or radical nephrectomy at a single institution from 1994 to 2003., Results: Pathological up staging occurred in 44 of 264 patients (17%) patients. Of 135 clinical T1 tumors 25 (18.5%) and 18 of 85 (21.2%) clinical T2 tumors were pathologically up staged. Patients with clinical T1 and T2 tumors were stratified into 2 groups, including those with the same clinical and pathological stage, and those with pathological up staging. Mean 5-year recurrence-free survival +/- SD for same stage vs pathologically up staged clinical T1 (84.3% +/- 4.4% vs 47.4% +/- 11.5%) and clinical T2 (80.0% +/- 6.8% vs 40.7% +/- 13.4%) tumors was significantly different (p < 0.0002). Five-year cancer specific survival for same stage vs pathologically up staged clinical T1 tumors was significantly different (98.5% +/- 1.5% vs 69.7% +/- 11.3%, p = 0.0005), while that for clinical T2 tumors approached clinical significance (90.9% +/- 5.0% vs 72.7% +/- 13.4%, p = 0.0501)., Conclusions: Stage discrepancy is common in surgically treated patients diagnosed with renal masses and it has a significant impact on clinical outcome. Implications of such clinical and pathological stage discrepancy should be considered when counseling patients and determining therapeutic approaches.
- Published
- 2006
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26. Soluble Fas--a promising novel urinary marker for the detection of recurrent superficial bladder cancer.
- Author
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Svatek RS, Herman MP, Lotan Y, Casella R, Hsieh JT, Sagalowsky AI, and Shariat SF
- Subjects
- Adult, Aged, Aged, 80 and over, Biomarkers, Tumor urine, Carcinoma, Transitional Cell metabolism, Carcinoma, Transitional Cell urine, Cell Line, Tumor, Female, Humans, Male, Middle Aged, Neoplasm Recurrence, Local urine, Nuclear Proteins urine, Predictive Value of Tests, ROC Curve, Urinary Bladder Neoplasms metabolism, Urinary Bladder Neoplasms urine, fas Receptor metabolism, Carcinoma, Transitional Cell diagnosis, Neoplasm Recurrence, Local diagnosis, Urinary Bladder Neoplasms diagnosis, fas Receptor urine
- Abstract
Background: The objective of this study was to test the hypothesis that elevated urinary levels of soluble Fas (sFas) would aid in the surveillance of patients with a past history of nonmuscle-invasive transitional cell carcinoma (TCC) of the urinary bladder., Methods: sFas levels were determined in cell lysates and supernatants from 2 human bladder cancer cell lines (T24 and TCC-SUP) and in voided urine from 188 consecutive patients who were at risk for TCC recurrence, 31 patients who had noncancerous urologic conditions, and 10 healthy individuals. The authors also obtained barbotage cytology and voided nuclear matrix protein 22 (NMP22) levels. sFas was analyzed continuously and categorically on the basis of its quintile distribution., Results: sFas was present in cell lysates and conditioned media from both cell lines. sFas levels were found to be higher in the TCC group (n = 122 patients) compared with the control group (P < .001). Higher levels of sFas were associated with positive cytology assay results (P < .001), higher NMP22 levels (P < .001), NMP22 levels > 10 U/mL (P < .001), and tumor stage > or = T1 (P < .001). The areas under the receiver operating characteristics (ROC) curves of sFas and NMP22 for bladder cancer detection were 0.757 (95% confidence interval, 0.694-0.819) and 0.704 (95% confidence interval, 0.637-0.772), respectively. In the > 75% sensitivity region of the ROC curves, sFas was consistently more specific than NMP22. In multivariate analyses, sFas, NMP22, and cytology all were found to be associated with the presence of bladder cancer (P values < or = .009), but only sFas and cytology were associated with tumor stage > or = T1 (P values < or = .026)., Conclusions: sFas was produced and released by bladder TCC cells. Urine sFas was an independent predictor of bladder cancer recurrence and invasiveness in patients who had a past history of nonmuscle invasive bladder TCC, and it outperformed NMP22., (2006 American Cancer Society)
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- 2006
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27. Urinary levels of tumor-associated trypsin inhibitor (TATI) in the detection of transitional cell carcinoma of the urinary bladder.
- Author
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Shariat SF, Herman MP, Casella R, Lotan Y, Karam JA, and Stenman UH
- Subjects
- Adult, Aged, Aged, 80 and over, Biomarkers, Tumor urine, Carcinoma, Transitional Cell pathology, Carcinoma, Transitional Cell urine, Chi-Square Distribution, Creatinine urine, Female, Humans, Male, Middle Aged, Neoplasm Staging, Nuclear Proteins urine, ROC Curve, Statistics, Nonparametric, Urinary Bladder Neoplasms pathology, Urinary Bladder Neoplasms urine, Carcinoma, Transitional Cell diagnosis, Trypsin Inhibitor, Kazal Pancreatic urine, Urinary Bladder Neoplasms diagnosis
- Abstract
Objective: To assess whether urinary levels of tumor-associated trypsin inhibitor (TATI) would aid in the detection of bladder transitional cell carcinoma (TCC); and to compare diagnostic performance of urinary TATI with that of nuclear matrix protein 22 (NMP22) and barbotage cytology., Methods: We determined TATI and NMP22 levels in voided urine from 181 subjects: 153 with previous bladder cancer, 20 with urologic pathology other than bladder cancer, and eight healthy volunteers. TATI was analyzed continuously and categorically on the basis of its quartile distribution. We also measured urinary creatinine and barbotage cytology in 173 and 154 patients, respectively., Results: Urinary TATI levels were significantly higher in TCC patients with evidence of tumor on cystoscopic evaluation (n = 96) than in control subjects (n = 85; p < 0.001). Higher levels of TATI were associated with positive cytology assay results (p = 0.018), higher NMP22 levels (p < 0.001), and invasive tumor stage (p = 0.026). The area under the receiver operating characteristics (ROC) curve (AUC) of TATI for the detection of TCC was 0.712 (95%CI: 0.637-0.786). The overall AUCs for TATI and NMP22 were not statistically different from each other (p = 0.174). In the >75% sensitivity region of the ROC curves, TATI was consistently more specific than NMP22. TATI, NMP22, and cytology were independently associated with bladder cancer (p = 0.049, p = 0.040, and p < 0.001, respectively). Adjustment of TATI for urinary creatinine levels did not affect any of the outcomes., Conclusions: Urinary level of TATI may add independent information to urinary cytology and NMP22 in the detection of bladder TCC. TATI seems to outperform NMP22 for bladder TCC detection.
- Published
- 2005
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28. Expression of neutrophil collagenase (matrix metalloproteinase-8) in human atheroma: a novel collagenolytic pathway suggested by transcriptional profiling.
- Author
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Herman MP, Sukhova GK, Libby P, Gerdes N, Tang N, Horton DB, Kilbride M, Breitbart RE, Chun M, and Schönbeck U
- Subjects
- Aorta enzymology, Aorta pathology, Arteriosclerosis pathology, CD40 Ligand, Carotid Arteries enzymology, Carotid Arteries pathology, Cells, Cultured, Cytokines pharmacology, Endothelium, Vascular enzymology, Endothelium, Vascular pathology, Humans, Leukocytes, Mononuclear cytology, Leukocytes, Mononuclear drug effects, Leukocytes, Mononuclear enzymology, Muscle, Smooth, Vascular enzymology, Muscle, Smooth, Vascular pathology, Phagocytes enzymology, Phagocytes pathology, RNA, Messenger biosynthesis, Reverse Transcriptase Polymerase Chain Reaction, Arteriosclerosis enzymology, Collagen metabolism, Gene Expression Profiling, Matrix Metalloproteinase 8 biosynthesis, Matrix Metalloproteinase 8 genetics
- Abstract
Background: Loss of interstitial collagen, particularly type I collagen, the major load-bearing molecule of atherosclerotic plaques, renders atheroma prone to rupture. Initiation of collagen breakdown requires interstitial collagenases, a matrix metalloproteinase (MMP) subfamily consisting of MMP-1, MMP-8, and MMP-13. Previous work demonstrated the overexpression of MMP-1 and MMP-13 in human atheroma. However, no study has yet evaluated the expression of MMP-8, known as "neutrophil collagenase," the enzyme that preferentially degrades type I collagen, because granulocytes do not localize in plaques., Methods and Results: Transcriptional profiling and reverse transcription-polymerase chain reaction analysis revealed inducible expression of MMP-8 transcripts in CD40 ligand-stimulated mononuclear phagocytes. Western blot analysis demonstrated that 3 atheroma-associated cell types, namely, endothelial cells, smooth muscle cells, and mononuclear phagocytes, expressed MMP-8 in vitro upon stimulation with proinflammatory cytokines such as interleukin-1beta, tumor necrosis factor-alpha, or CD40 ligand. MMP-8 protein elaborated from these atheroma-associated cell types migrated as 2 immunoreactive bands, corresponding to the molecular weights of the zymogen and the active molecule. Extracts from atherosclerotic, but not nondiseased arterial tissue, contained similar immunoreactive bands. Moreover, all 3 cell types expressed MMP-8 mRNA and protein in human atheroma in situ. Notably, MMP-8 colocalized with cleaved but not intact type I collagen within the shoulder region of the plaque, a frequent site of rupture., Conclusions: These data point to MMP-8 as a previously unsuspected participant in collagen breakdown, an important determinant of the vulnerability of human atheroma.
- Published
- 2001
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29. Tissue factor pathway inhibitor-2 is a novel inhibitor of matrix metalloproteinases with implications for atherosclerosis.
- Author
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Herman MP, Sukhova GK, Kisiel W, Foster D, Kehry MR, Libby P, and Schönbeck U
- Subjects
- Aorta pathology, Carotid Arteries pathology, Dose-Response Relationship, Drug, Glycoproteins genetics, Humans, Macrophages metabolism, Muscle, Smooth, Vascular metabolism, Procollagen metabolism, Protein Binding, Protein Processing, Post-Translational drug effects, Recombinant Proteins pharmacology, Arteriosclerosis etiology, Glycoproteins pharmacology, Matrix Metalloproteinase Inhibitors, Serpins pharmacology
- Abstract
Degradation of ECM, particularly interstitial collagen, promotes plaque instability, rendering atheroma prone to rupture. Previous studies implicated matrix metalloproteinases (MMPs) in these processes, suggesting that dysregulated MMP activity, probably due to imbalance with endogenous inhibitors, promotes complications of atherosclerosis. We report here that the serine proteinase inhibitor tissue factor pathway inhibitor-2 (TFPI-2) can function as an MMP inhibitor. TFPI-2 diminished the ability of the interstitial collagenases MMP-1 and MMP-13 to degrade triple-helical collagen, the primary load-bearing molecule of the ECM within human atheroma. In addition, TFPI-2 also reduced the activity of the gelatinases MMP-2 and MMP-9. In contrast to the "classical" tissue inhibitors of MMPs (TIMPs), TFPI-2 expression in situ correlated inversely with MMP levels in human atheroma. TFPI-2 colocalized primarily with smooth muscle cells in the normal media as well as the plaque's fibrous cap. Conversely, the macrophage-enriched shoulder region, the prototypical site of matrix degradation and plaque rupture, stained only weakly for TFPI-2 but intensely for gelatinases and interstitial collagenases. Evidently, human mononuclear phagocytes, an abundant source of MMPs within human atheroma, lost their ability to express this inhibitor during differentiation in vitro. These findings establish a new, anti-inflammatory function of TFPI-2 of potential pathophysiological significance for human diseases, including atherosclerosis.
- Published
- 2001
- Full Text
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