21 results on '"Mamdouh Khayat"'
Search Results
2. Bleeding diverticulum of the colon treated with CT-guided percutaneous injection of epinephrine and cyanoacrylate
- Author
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Spencer B. Lewis, BS, Mamdouh Khayat, MD, Rajiv Srinivasa, MD, Jeffrey F.B. Chick, MD, MPH, DABR, Joseph J. Gemmete, MD, FSIR, and Ravi N. Srinivasa, MD
- Subjects
Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Hematochezia may be a result of anatomic, vascular, inflammatory, infectious, or neoplastic diseases. Colonoscopic evaluation and therapy may be limited because of intermittent bleeding in the setting of numerous diverticula. This report describes a patient with diverticulosis who presented with hematochezia and hemodynamic instability with failed colonoscopic and arteriographic evaluations, and was treated with percutaneous transcolonic diverticular cyanoacrylate and epinephrine injection. Keywords: Percutaneous injection cyanoacrylate, Epinephrine, Diverticular hemorrhage
- Published
- 2018
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3. Atypical Presentation of Isolated Gastric Variceal Bleeding Requiring Multidisciplinary Management
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Kevin Litzenberg, Khalid Mumtaz, Gavisha Waidyaratne, Ahmad Anaizi, Mamdouh Khayat, Allan Tsung, and Veronica Franco
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Applied Mathematics ,General Mathematics - Abstract
Variceal bleeding is the most lethal manifestation of portal hypertension, most commonly due to esophageal varices in the setting of liver cirrhosis. Isolated gastric varices (IGV) are a rare cause of upper gastrointestinal bleeding, often of pancreatic origin. In this case we present a complex patient with a history of remote splenic injury leading to portopulmonary hypertension and the development of refractory bleeding due to IGV. We discuss the extensive multidisciplinary approach taken to provide comprehensive care and to control bleeding, which included endoscopic (sclerotherapy), radiologic (balloon-occluded antegrade transvenous obliteration [BATO] and splenic artery embolization) and surgical interventions (splenectomy).
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- 2022
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4. Percutaneous Biliary Endoscopy
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Michael Cline, Ahsun Riaz, Adam Khayat, and Mamdouh Khayat
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medicine.medical_specialty ,Endoscopic retrograde cholangiopancreatography ,Percutaneous ,medicine.diagnostic_test ,Perioperative management ,business.industry ,General surgery ,Interventional radiology ,Endoscopy ,Review article ,medicine ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,business ,Clinical evaluation ,BILIARY STONES - Abstract
Biliary endoscopy is underutilized by interventional radiologists and has the potential to become an effective adjunctive tool to help both diagnose and treat a variety of biliary pathology. This is particularly true in cases where endoscopic retrograde cholangiopancreatography fails or is not feasible due to surgically altered anatomy. Both preoperative clinical and technical procedural factors must be taken into consideration prior to intervention. In this article, clinical evaluation, perioperative management, and procedural techniques for percutaneous biliary endoscopy are reviewed.
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- 2021
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5. Endoscopy as an Adjunct to Image-Guided Interventions: A New Frontier in Interventional Radiology
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Clifford J. Raymond, Mamdouh Khayat, Ravi N. Srinivasa, and Jeffrey Forris Beecham Chick
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Male ,medicine.medical_specialty ,Gastrointestinal Diseases ,Biliary Tract Diseases ,030204 cardiovascular system & hematology ,Radiography, Interventional ,Endoscopy, Gastrointestinal ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Male Urogenital Diseases ,Interventional Radiology Procedure ,Radiologists ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Medical physics ,Endoscopes ,Endoscopic retrograde cholangiopancreatography ,medicine.diagnostic_test ,Esophagogastroduodenoscopy ,business.industry ,Endoscopy ,Interventional radiology ,Female Urogenital Diseases ,Motor Skills ,Image guided interventions ,Female ,Clinical Competence ,Diffusion of Innovation ,Cardiology and Cardiovascular Medicine ,business - Abstract
Endoscopy is an underutilized technique in the practice of interventional radiology. The objectives of this article are to discuss potential uses of interventional radiology-operated endoscopy and to outline basic endoscopy setup and equipment uses. Endoscopy represents a new frontier to the fluoroscopically-guided procedures in biliary, gastrointestinal, and genitourinary disease that interventional radiologists commonly perform. It shows promise to improve interventional radiology procedure success rates and reduce procedure-associated risk for patients. Endoscopy has been traditionally performed by gastroenterologists and urologists and is relatively new in the practice of interventional radiology. The hand-eye coordination and manual dexterity required to perform standard image-guided procedures places interventional radiologists in a unique position to introduce endoscopy into standard practice. A focused and collaborative effort is needed by interventional radiologists to learn the techniques required to successfully integrate endoscopy into practice.
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- 2019
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6. Transnasal stent-assisted targeting technique for percutaneous jejunostomy placement in patients with hiatal hernias
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Jeffrey Forris Beecham Chick, Jacob J. Bundy, Mamdouh Khayat, Ravi N. Srinivasa, Anthony N. Hage, Neil K. Jairath, Joseph J. Gemmete, Evan Johnson, and Nishant Patel
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Operative Time ,Jejunostomy ,Nose ,Enteral administration ,030218 nuclear medicine & medical imaging ,Hiatal hernia ,03 medical and health sciences ,Enteral Nutrition ,0302 clinical medicine ,medicine ,Humans ,Fluoroscopy ,Radiology, Nuclear Medicine and imaging ,Aged ,Aged, 80 and over ,Radiological and Ultrasound Technology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Stent ,medicine.disease ,Gastrostomy ,Surgery ,Hernia, Hiatal ,medicine.anatomical_structure ,Dose area product ,030220 oncology & carcinogenesis ,Female ,Stents ,business - Abstract
To report the transnasal stent-assisted targeting technique for percutaneous jejunostomy placement in patients with hiatal hernias. Four patients, including three (75%) females and one (25%) male, with mean age of 77.5 years (range 73–78 years), and with a hiatal hernia and intrathoracic stomach precluding gastrostomy placement and loop snare placement into the mid-jejunum underwent the transnasal stent-assisted targeting technique for percutaneous jejunostomy placement. In all patients, a duodenal stent was inserted into the jejunum in a transnasal fashion. The stent was partially unsheathed in an anterior loop of jejunum and percutaneously targeted using an 18-gauge needle through which a guidewire was advanced, trapped within the stent, and removed through the nose. The tract was serially dilated and a jejunostomy was placed. Technical success, procedure time, fluoroscopy time, radiation exposure, complications, time to enteral feeding, and follow-up were recorded. Technical success was 100% (4/4) with all four patients requiring only one needle pass before successful jejunal cannulation. Mean procedure time was 108 min. Mean fluoroscopy time was 44 min. Mean dose area product was 3969.3 μGym2. No minor or major complications occurred. All four patients received enteral feeding one day after the procedure. Mean follow-up was 366 days. The transnasal stent-assisted targeting technique is a novel method for primary jejunostomy placement in patients with hiatal hernias.
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- 2019
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7. #VascularSurgery
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Anthony N. Hage, Ravi N. Srinivasa, Jacob J. Bundy, Joseph J. Gemmete, Evan J. Johnson, Rajiv N. Srinivasa, Nishant Patel, Mamdouh Khayat, Dawn Coleman, Steven D. Abramowitz, and Jeffrey Forris Beecham Chick
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Time Factors ,Information Dissemination ,Academies and Institutes ,General Medicine ,Access to Information ,03 medical and health sciences ,0302 clinical medicine ,Physicians ,030220 oncology & carcinogenesis ,Humans ,Interdisciplinary Communication ,Surgery ,030212 general & internal medicine ,Periodicals as Topic ,Cardiology and Cardiovascular Medicine ,Social Media ,Vascular Surgical Procedures ,Societies, Medical ,Retrospective Studies - Abstract
To characterize the vascular surgery Twitter network.A total of 20,841 consecutive tweets by 8,282 unique Twitter accounts regarding vascular surgery from October 23, 2014 to January 15, 2018 were analyzed. Twitter analytics, including activity metrics, content analysis, user characteristics, engagement, and network analysis were performed using Symplur Signals, a health care social media analytics platform.Vascular surgery tweets, the number of users tweeting about vascular surgery, and vascular surgery tweet impressions have increased by an annual average of 77.8%, 55.3%, and 209.1% from 2015 to 2017, respectively. Twitter activity trend analysis showed consistent growth over the study period with an average of 25.7 ± 2.6 additional tweets per month (P 0.001). As for tweet content, 2,220 tweets (10.7%) were pertaining to patients, and 2,198 tweets (10.5%) were regarding new or innovative topics. 15,422 tweets (74.0%) included links to journals or websites and 6,826 tweets (32.8%) contained at least 1 image. Deep venous thrombosis, pulmonary embolism, diabetes, endovascular interventions, trauma, and practice guidelines were among the most commonly discussed health topics. Physicians composed 5,618 tweets (27%), while patients submitted 2,447 tweets (11.7%). As for engagement, 8,886 tweets (42.6%) were retweets, 11,816 tweets (56.7%) mentioned at least 1 other user, and 786 tweets (3.8%) were replies. Network analysis revealed central hubs to be vascular surgery societies, academic institutions, academic journals, and physicians.The use of Twitter to discuss vascular surgery is growing rapidly with increasing use by vascular surgeons and vascular medicine physicians. An effort to involve more patients in the vascular surgery Twitter social network may allow for more opportunities to educate, and garner interest and support for vascular surgery.
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- 2018
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8. Advanced stage breast cancer is associated with catheter-tip thrombus formation following implantable central venous port placement
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Maryam B. Lustberg, Jamal AlTaani, Mamdouh Khayat, Rachel M. Layman, Subha V. Raman, Xueliang J Pan, Joshua D. Dowell, Alexander Lionberg, Rick R. Layman, and Mina S. Makary
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Adult ,medicine.medical_specialty ,Breast Neoplasms ,030204 cardiovascular system & hematology ,030230 surgery ,Catheterization ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,medicine ,Central Venous Catheters ,Humans ,In patient ,Thrombus ,Neoplasm Staging ,business.industry ,Advanced stage ,Age Factors ,Thrombosis ,General Medicine ,Middle Aged ,medicine.disease ,Surgery ,Catheter ,Female ,Port placement ,Jugular Veins ,Cardiology and Cardiovascular Medicine ,Complication ,business - Abstract
Purpose Catheter-tip associated thrombosis is not uncommon in patients with implantable central venous ports; however, the prevalence and clinical impact of this complication on patient management is unclear. This study aims to identify risk factors for thrombus formation in a large population receiving serial echocardiograms (echo) following port placement. Methods A total of 396 female breast cancer patients underwent internal jugular vein chest port placement between 2007 and 2013 and received echo studies every third month. Catheter tip position was measured from chest radiography and catheter associated thrombus was identified by echo. Results Sixteen out of 396 patients (4%) had catheter-tip thrombus. No patients were symptomatic or prophylactically anticoagulated. Patients with thrombus were significantly younger than those without (46.4 years versus 53.4 years, respectively, p = 0.02) and had higher stage breast cancer with 75% versus 44.7% having stage III or IV cancer ( p = 0.017). Thrombus was identified after a median of 91 days. No significant difference was identified in anatomic ( p = 0.1) or measured ( p = 0.15) tip position, port laterality ( p = 0.86), or number of port lumens ( p = 0.65). Conclusions In this large cohort, younger patients and those with more advanced stage breast cancer were more associated with catheter-tip-related thrombus after port placement.
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- 2018
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9. Type II endoleaks: diagnosis and treatment algorithm
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Brian J. Schiro, Yolanda Bryce, Geogy Vatakencherry, Suvranu Ganguli, Cuong Lam, Ripal Gandhi, Kyle J. Cooper, Mamdouh Khayat, and Rahmi Oklu
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Review Article ,030204 cardiovascular system & hematology ,medicine.disease ,Endovascular aneurysm repair ,Abdominal aortic aneurysm ,030218 nuclear medicine & medical imaging ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,Aneurysm ,cardiovascular system ,medicine ,Open repair ,cardiovascular diseases ,Embolization ,Radiology ,Approaches of management ,Cardiology and Cardiovascular Medicine ,business ,Hospital stay - Abstract
Elective abdominal aortic aneurysm (AAA) repair is recommended for aneurysms greater than 5.5 cm, symptomatic, or rapidly expanding more than 0.5 cm in 6 months. Seventy-five percent of AAAs today are treated with endovascular aneurysm repair (EVAR) rather than open repair. This is fostered by the lower periprocedural mortality, complications, and length of hospital stay associated with EVAR. However, some studies have demonstrated EVAR to result in higher reintervention rates than with open repair, largely due to endoleaks. Type II is the most common, making up 10–25% of all endoleaks. Type II endoleaks, can potentially enlarge and pressurize the aneurysm sac with a risk of rupture. However, many type II endoleaks spontaneously resolve or never lead to sac enlargement. Imaging surveillance and approaches to management of type II endoleaks are reviewed here.
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- 2018
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10. Percutaneous transgastrostomic interventional radiology-operated endoscopy facilitates foreign body removal using rigid endobronchial forceps
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Ravi N. Srinivasa, Jawad Hussain, Anthony N. Hage, Jeffrey Forris Beecham Chick, and Mamdouh Khayat
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Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Forceps ,Gastric Bypass ,Radiology, Interventional ,030218 nuclear medicine & medical imaging ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Interventional Radiology ,medicine ,Humans ,Fluoroscopy ,Radiology, Nuclear Medicine and imaging ,Endoscopy, Digestive System ,Aged ,Gastrostomy ,medicine.diagnostic_test ,business.industry ,Esophagogastroduodenoscopy ,Interventional radiology ,Equipment Design ,Middle Aged ,Foreign Bodies ,Surgical Instruments ,medicine.disease ,Foreign Body Removal ,Endoscopy ,Female ,030211 gastroenterology & hepatology ,Radiology ,Foreign body ,Cardiology and Cardiovascular Medicine ,business - Abstract
Retained foreign bodies within the stomach and proximal small bowel may be problematic in patients with prior cerebrovascular injury or head, neck and esophageal malignancy, given the increased vulnerability of this patient population to complications from aspiration and increased difficulty of esophagogastroduodenoscopy in cases of tumoral obstruction. This article presents an alternative method for foreign body retrieval through an existing gastrostomy tract, which offers the benefits of fast procedure times, reduction in radiation dose and fluoroscopy time, and allows for safer retrieval of foreign bodies by using direct visualization. This technique may be performed entirely by interventional radiologists.
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- 2018
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11. Retrieval characteristics of the Bard Denali and Argon Option inferior vena cava filters
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Mina S. Makary, Joshua D. Dowell, Xueliang Pan, Mamdouh Khayat, Dominic Semaan, and John L. Ryu
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Male ,medicine.medical_specialty ,Vena Cava Filters ,Operative Time ,030204 cardiovascular system & hematology ,Inferior vena cava ,Malignant disease ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Fluoroscopy ,Device Removal ,Retrospective Studies ,Procedure time ,medicine.diagnostic_test ,business.industry ,Significant difference ,Retrospective cohort study ,Phlebography ,Middle Aged ,Surgery ,medicine.vein ,Access site ,Operative time ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
Objective The purpose of this study was to compare the retrieval characteristics of the Option Elite (Argon Medical, Plano, Tex) and Denali (Bard, Tempe, Ariz) retrievable inferior vena cava filters (IVCFs), two filters that share a similar conical design. Methods A single-center, retrospective study reviewed all Option and Denali IVCF removals during a 36-month period. Attempted retrievals were classified as advanced if the routine “snare and sheath” technique was initially unsuccessful despite multiple attempts or an alternative endovascular maneuver or access site was used. Patient and filter characteristics were documented. Results In our study, 63 Option and 45 Denali IVCFs were retrieved, with an average dwell time of 128.73 and 99.3 days, respectively. Significantly higher median fluoroscopy times were experienced in retrieving the Option filter compared with the Denali filter (12.18 vs 6.85 minutes; P = .046). Use of adjunctive techniques was also higher in comparing the Option filter with the Denali filter (19.0% vs 8.7%; P = .079). No significant difference was noted between these groups in regard to gender, age, or history of malignant disease. Conclusions Option IVCF retrieval procedures required significantly longer retrieval fluoroscopy time compared with Denali IVCFs. Although procedure time was not analyzed in this study, as a surrogate, the increased fluoroscopy time may also have an impact on procedural direct costs and throughput.
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- 2017
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12. Bleeding diverticulum of the colon treated with CT-guided percutaneous injection of epinephrine and cyanoacrylate
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Rajiv N. Srinivasa, Ravi N. Srinivasa, Spencer Lewis, Jeffrey Forris Beecham Chick, Joseph J. Gemmete, and Mamdouh Khayat
- Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine ,medicine.medical_specialty ,Percutaneous ,Epinephrine ,lcsh:R895-920 ,digestive system ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,Interventional Radiology ,medicine ,Percutaneous injection cyanoacrylate ,Radiology, Nuclear Medicine and imaging ,business.industry ,medicine.disease ,digestive system diseases ,Hematochezia ,Surgery ,Diverticulosis ,Cyanoacrylate ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,medicine.symptom ,Diverticular hemorrhage ,business ,Diverticulum ,medicine.drug ,Hemodynamic instability - Abstract
Hematochezia may be a result of anatomic, vascular, inflammatory, infectious, or neoplastic diseases. Colonoscopic evaluation and therapy may be limited because of intermittent bleeding in the setting of numerous diverticula. This report describes a patient with diverticulosis who presented with hematochezia and hemodynamic instability with failed colonoscopic and arteriographic evaluations, and was treated with percutaneous transcolonic diverticular cyanoacrylate and epinephrine injection. Keywords: Percutaneous injection cyanoacrylate, Epinephrine, Diverticular hemorrhage
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- 2018
13. Percutaneous Interventional Radiology-Operated Endoscopy for Foreign Body Removal
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Travis L. Healey, Ravi N. Srinivasa, Adam Khayat, Jeffrey Forris Beecham Chick, and Mamdouh Khayat
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medicine.medical_specialty ,Percutaneous ,030204 cardiovascular system & hematology ,Radiography, Interventional ,Inferior vena cava ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Endoscopic retrograde cholangiopancreatography ,medicine.diagnostic_test ,Genitourinary system ,business.industry ,Patient Selection ,Interventional radiology ,Endoscopy ,medicine.disease ,Foreign Bodies ,Foreign Body Removal ,Treatment Outcome ,medicine.vein ,Radiology ,Foreign body ,Cardiology and Cardiovascular Medicine ,business - Abstract
Image-guided retrieval of endovascular devices such as inferior vena cava filters, guidewires, and stents is well reported, though there is a paucity of published reports on biliary, genitourinary, or gastrointestinal foreign body retrieval utilizing percutaneous endoscopy, particularly when it is performed solely by interventional radiologists. In cases of failed traditional endoscopic techniques or to evade more invasive surgical options, percutaneous endoscopy can be an adjunctive tool employed by interventional radiologists to extract foreign bodies. In this article, clinical evaluation, perioperative management, and procedural techniques for biliary, genitourinary, and gastrointestinal endoscopy for foreign body retrieval are reviewed.
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- 2019
14. Three-Dimensional Printing Facilitates Creation of a Biliary Endoscopy Phantom for Interventional Radiology-Operated Endoscopy Training
- Author
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Jeffrey Forris Beecham Chick, Rajiv N. Srinivasa, Nishant Patel, Jacob J. Bundy, Ravi N. Srinivasa, Brian Jeffers, Joseph J. Gemmete, Evan Johnson, Mamdouh Khayat, and William J. Weadock
- Subjects
Male ,medicine.medical_specialty ,Percutaneous ,Endoscope ,medicine.medical_treatment ,Radiology, Interventional ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Endoscopy, Digestive System ,Biliary Tract ,medicine.diagnostic_test ,Bile duct ,business.industry ,Phantoms, Imaging ,Interventional radiology ,Endoscopy ,medicine.anatomical_structure ,Percutaneous nephrostomy ,Biliary tract ,030220 oncology & carcinogenesis ,Cholecystostomy ,Printing, Three-Dimensional ,Female ,Radiology ,business - Abstract
Purpose To create a three-dimensional endoscopic model of the biliary tract from magnetic-resonance cholangiopancreatography imaging and to evaluate its effectiveness as a tool for training in endoscopic biliary interventions. Materials and Methods A magnetic-resonance cholangiopancreatography study was performed on a patient with biliary obstruction secondary to a distal bile duct cholangiocarcinoma. Using Vitrea, a three-dimensional volume-rendered image was created, and exported as a standard tessellated language file. The standard tessellated language model was then edited with MeshMixer. Three cylindrical entry ports were created. The ports were aligned and overlapped with the dominant ducts in three separate areas of the model and fused to the model. A 0.2 cm shell was created around the model and the model was hollowed. The ends of the ports were cut off, allowing access to the hollowed-out model. The model was printed at 125% scale to allow easy access with a 9.5-French (≤3.23 mm) endoscope. The model was printed using a Stratasys Dimension Elite Plus printer. After printing, the model was post-processed to remove support materials. A 10-question survey was administered to all trainees before and after use of the printed phantom to practice endoscopy skills. Results 11 trainees participated in the three-dimensional endoscopy simulation with most of the trainees (73%) having no prior formal endoscopy training. Using a 10-point Likert scale, the mean comfort-level of the trainees to use endoscopy alone for cholecystostomy, percutaneous biliary drainage, percutaneous nephrostomy, and percutaneous gastrostomy increased by 38.9%, 32.8%, 32.8%, and 34.3%, respectively, following the training experience. Conclusion The use of a three-dimensionally printed endoscopic model as a simulation tool has the potential to improve trainee comfort using endoscopy during interventional radiology procedures.
- Published
- 2018
15. Lymphatic interventions for isolated, iatrogenic chylous ascites: A multi-institution experience
- Author
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Bill S. Majdalany, Wael A. Saad, Ghassan El-Haddad, Minhaj S. Khaja, Timothy P. Killoran, Mamdouh Khayat, and Trevor Downing
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Iatrogenic Disease ,Thoracic duct ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Chylous ascites ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Embolization ,Glue embolization ,Child ,Chylous Ascites ,Aged ,Aged, 80 and over ,business.industry ,Chylothorax ,Lymphography ,General Medicine ,Middle Aged ,medicine.disease ,Procedural complication ,Embolization, Therapeutic ,Surgery ,Catheter ,medicine.anatomical_structure ,Lymphatic system ,Treatment Outcome ,030220 oncology & carcinogenesis ,Child, Preschool ,Female ,business - Abstract
Objectives Lymphangiography and thoracic duct embolization are established treatments for post-surgical chylothorax. There is only limited experience in their application to treat post-surgical chylous ascites. A multi-center analysis of the technical and clinical success of lymphangiography and lymphatic interventions in the treatment of isolated, iatrogenic chylous ascites is reported. Methods 21 patients (14 males; 7 females) aged 3–84 years (mean 56.9 years; median 63 years) were treated for isolated, iatrogenic chylous ascites between August 2012 and January 2018. Initial referrals occurred between 5–330 days (mean 72.7 days; median 40 days) after failing conservative therapy. Daily leak volumes ranged from 100 to 3000 mL. Lymphangiographic findings, techniques, clinical outcomes, and complications were recorded. Results 21 patients underwent 29 procedures. Seven patients underwent multiple procedures after chylous ascites persisted. Bilateral nodal lymphangiography (NL) was technically successful in all (100%) patients. Lymphangiography identified a leak in 14/21 (67%) patients and in 16/29 procedures (55%). Ten procedures (34%) consisted of NL alone and one (3.4%) consisted of NL combined with lymphatic disruption (LD). Six procedures (21%) consisted of nodal glue embolization (NGE) while nine procedures (31%) were catheter-based lymphatic embolization. Three separate patients underwent three procedures (10%) consisting of balloon-occluded retrograde abdominal lymphatic embolization. Clinical success, defined as no additional drainage of chylous ascites at 15 days, was ultimately achieved in 18/21 patients (86%). There were no major or minor complications. Conclusion Lymphatic interventions can successfully treat post-surgical chylous ascites. Given the low risk of procedural complication, early intervention is encouraged.
- Published
- 2018
16. Endovascular Transpulmonary Retrieval of a Migrated Amplatzer Vascular Plug Following Balloon-Occluded Retrograde Transvenous Obliteration
- Author
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Jacob J. Bundy, Nishant Patel, Jeffrey Forris Beecham Chick, Jawad Hussain, Ravi N. Srinivasa, Mamdouh Khayat, and Joseph J. Gemmete
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Male ,medicine.medical_specialty ,Computed Tomography Angiography ,Vascular plug ,030204 cardiovascular system & hematology ,Pulmonary Artery ,Balloon ,Esophageal and Gastric Varices ,Clinical success ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Foreign-Body Migration ,Hypertension, Portal ,Medicine ,Humans ,cardiovascular diseases ,Device Removal ,business.industry ,Endovascular Procedures ,Angiography, Digital Subtraction ,General Medicine ,Left pulmonary artery ,Gastric varices ,Balloon Occlusion ,Middle Aged ,medicine.disease ,Embolization, Therapeutic ,Portal Pressure ,Extravasation ,Surgery ,Treatment Outcome ,cardiovascular system ,Portal hypertension ,Inferior vena cava thrombosis ,Cardiology and Cardiovascular Medicine ,business ,Gastrointestinal Hemorrhage ,Vascular Closure Devices - Abstract
Gastric varices are a common manifestation of portal hypertension and are associated with a high rate of mortality and rebleeding. Balloon-occluded retrograde transvenous obliteration (BRTO) is a commonly used method to sclerose gastric varices and has a high clinical success. Common complications following BRTO include portal or splenic vein thrombosis, systemic sclerosant extravasation, pulmonary emboli, and inferior vena cava thrombosis. This report describes a patient with vascular plug migration into the left pulmonary artery with subsequent endovascular retrieval.
- Published
- 2018
17. Endovascular management of acute aortic dissection
- Author
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Minhaj S. Khaja, Mamdouh Khayat, Ripal T. Gandhi, Kyle J. Cooper, David M. Williams, and Yolanda Bryce
- Subjects
Aortic dissection ,Aortic arch ,medicine.medical_specialty ,Aorta ,business.industry ,medicine.medical_treatment ,Stent ,Review Article ,030204 cardiovascular system & hematology ,medicine.disease ,Surgery ,03 medical and health sciences ,Dissection ,0302 clinical medicine ,medicine.artery ,Ascending aorta ,medicine ,Limb perfusion ,Thoracic aorta ,030212 general & internal medicine ,Cardiology and Cardiovascular Medicine ,business - Abstract
Acute dissection of the thoracic aorta is a potentially life-threatening condition which requires collaborative treatment from multiple specialties for optimal patient outcomes. Dissections involving the ascending aorta and aortic arch have traditionally been managed entirely by surgery, while dissections beyond the arch vessels have most commonly been relegated to medical management. This algorithm has been undergoing a paradigm shift over the past two decades due to improvements in stent graft technology, better understanding of the hemodynamic interactions of the true and false lumen and their influence on organ and limb perfusion, and improvements in medical management and long term surveillance for dissection-related complications. This manuscript includes a brief discussion of the pathogenesis and etiology of dissection, followed by an in-depth review of the medical and endovascular techniques utilized to treat patients afflicted by this condition.
- Published
- 2018
18. Endolymphatic Optical Coherence Tomography Facilitates Evaluation of the Thoracic Duct Prior to Embolization
- Author
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Jeffrey Forris Beecham Chick, Mamdouh Khayat, Ravi N. Srinivasa, and Joseph J. Gemmete
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Ultrasound ,Thoracic duct ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Optical coherence tomography ,030220 oncology & carcinogenesis ,medicine ,Radiology, Nuclear Medicine and imaging ,Radiology ,Embolization ,Cardiology and Cardiovascular Medicine ,business - Published
- 2018
19. 04:03 PM Abstract No. 400 Lymphatic interventions for isolated, iatrogenic chylous ascites: a single-institution experience
- Author
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A. Esparaz, M. Khaja, Bill S. Majdalany, Mamdouh Khayat, and Wael E. Saad
- Subjects
medicine.medical_specialty ,Lymphatic system ,business.industry ,Chylous ascites ,General surgery ,Psychological intervention ,Medicine ,Radiology, Nuclear Medicine and imaging ,Single institution ,Cardiology and Cardiovascular Medicine ,business - Published
- 2019
- Full Text
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20. Feasibility and Acceptance of a Telehealth Intervention to Promote Symptom Management during Treatment for Head and Neck Cancer
- Author
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Mamdouh Khayat, Jamie L. Studts, Barbara Head, Cynthia Keeney, Jeffrey M. Bumpous, and Mark Pfeifer
- Subjects
medicine.medical_specialty ,Pathology ,Symptom management ,business.industry ,Head and neck cancer ,Alternative medicine ,MEDLINE ,Telehealth ,medicine.disease ,Article ,Quality of life (healthcare) ,Oncology ,Intervention (counseling) ,medicine ,Physical therapy ,Pharmacology (medical) ,Head and neck ,business - Abstract
Patients undergoing treatment for head and neck cancers have a myriad of distressing symptoms and treatment side effects which significantly alter communication and lower quality of life. Telehealth technology has demonstrated promise in improving patient-provider communication by delivering supportive educational content and guidance to patients in their homes. A telehealth intervention using a simple telemessaging device was developed to provide daily education, guidance, and encouragement for patients undergoing initial treatment of head and neck cancer. The goal of this article is to report the feasibility and acceptance of the intervention using both quantitative and qualitative measures. No eligible patients declined participation based on technology issues. Participants completed the intervention over 86% of the expected days of use. Direct nursing contact was seldom needed during the study period. Satisfaction with the technology and the intervention was very high. In this study a telehealth intervention was shown to be feasible, well accepted, and regularly used by patients experiencing extreme symptom burden and declining quality of life as a result of aggressive treatment for head and neck cancer.
- Published
- 2011
- Full Text
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21. Retrieval characteristics of the Bard Denali and Argon Option IVC filters
- Author
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Mamdouh Khayat, Joshua D. Dowell, Ali Rikabi, and D. Semaan
- Subjects
Argon ,chemistry ,business.industry ,chemistry.chemical_element ,Medicine ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,business ,Simulation - Published
- 2016
- Full Text
- View/download PDF
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