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Background: This study examined effects of health maintenance organization (HMO) penetration, hospital competition, and patient severity on the uptake of laparoscopic colectomy and its price relative to open surgery for colon cancer.Methods: The MarketScan Database (data from 2002-2007) was used to identify admissions for privately insured colorectal cancer patients undergoing laparoscopic or open partial colectomy (n = 1035 and n = 6389, respectively). Patient and health plan characteristics were retrieved from these data; HMO market penetration rates and an index of hospital market concentration, the Herfindahl-Hirschman index (HHI), were derived from national databases. Logistic and logarithmic regressions were used to examine the odds of having laparoscopic colectomy, effect of covariates on colectomy prices, and the differential price of laparoscopy.Results: Adoption of laparoscopy was highly sensitive to market forces, with a 10% increase in HMO penetration leading to a 10.9% increase in the likelihood of undergoing laparoscopic colectomy (adjusted odds ratio = 1.109; 95% confidence interval [CI] = 1.062, 1.158) and a 10% increase in HHI resulting in 6.6% lower likelihood (adjusted odds ratio = 0.936; 95% CI = 0.880, 0.996). Price models indicated that the price of laparoscopy was 7.6% lower than that of open surgery (transformed coefficient = 0.927; 95% CI = 0.895, 0.960). A 10% increase in HMO penetration was associated with 1.6% lower price (transformed coefficient = 0.985; 95% CI = 0.977, 0.992), whereas a 10% increase in HHI was associated with 1.6% higher price (transformed coefficient = 1.016; 95% CI = 1.006, 1.027; P < .001 for all comparisons).Conclusions: Laparoscopy was significantly associated with lower hospital prices. Moreover, laparoscopic surgery may result in cost savings, while market pressures contribute to its adoption. [ABSTRACT FROM AUTHOR]

Background: Occult inguinal hernias are inguinal hernias that are not felt on physical exam but can often be seen on imaging. Their diagnosis can be challenging, leading to unnecessary surgeon referrals, undue patient stress, and even unneeded surgery. The aim of this project was to develop recommendations for the diagnosis of occult inguinal hernias using a modified Delphi technique., Methods: Iterative rounds of surveys were administered to an expert panel of surgeons and radiologists. Panelists were asked to rate potential hernia-related topics by levels of importance. Items with 80% agreement were included for further discussion. Panelists were asked to provide their opinion on each included subject. A virtual meeting was conducted to discuss areas without agreement and determine final recommendations., Results: Three surgeons and five radiologists participated. There was strong agreement that dynamic ultrasound is a good first/confirmatory imaging choice. There was agreement that the radiology reports for studies assessing inguinal hernias should include hernia contents (80%) and hernia size (100%). Information that should be provided to the radiologist when ordering an imaging study include indication for study, patient symptoms, prior hernia surgery. Items that should be included in a radiology report include whether the presence of an inguinal hernia was assessed, hernia contents, size of defect, +/- hernia type., Conclusions: This collaboration between surgeons and radiologists creates a diagnostic imaging pathway and standardizing imaging reporting which will be used to improve the diagnosis of occult inguinal hernias. Future studies testing these recommendations in a prospective study are warranted., (© 2024. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)

Background: Surgical videos coupled with structured assessments enable surgical training programs to provide independent competency evaluations and align with the American Board of Surgery's entrustable professional activities initiative. Existing assessment instruments for minimally invasive inguinal hernia repair (IHR) have limitations with regards to reliability, validity, and usability. A cross-sectional study of six surgeons using a novel objective, procedure-specific, 8-item competency assessment for minimally invasive inguinal hernia repair (IHR-OPSA) was performed to assess inter-rater reliability using a "safe" vs. "unsafe" scoring rubric., Methods: The IHR-OPSA was developed by three expert IHR surgeons, field tested with five IHR surgeons, and revised based upon feedback. The final instrument included: (1) incision/port placement; (2) dissection of peritoneal flap (TAPP) or dissection of peritoneal flap (TEP); (3) exposure; (4) reducing the sac; (5) full dissection of the myopectineal orifice; (6) mesh insertion; (7) mesh fixation; and (8) operation flow. The IHR-OPSA was applied by six expert IHR surgeons to 20 IHR surgical videos selected to include a spectrum of hernia procedures (15 laparoscopic, 5 robotic), anatomy (14 indirect, 5 direct, 1 femoral), and Global Case Difficulty (easy, average, hard). Inter-rater reliability was assessed against Gwet's AC 2 ., Results: The IHR-OPSA inter-rater reliability was good to excellent, ranging from 0.65 to 0.97 across the eight items. Assessments of robotic procedures had higher reliability with near perfect agreement for 7 of 8 items. In general, assessments of easier cases had higher levels of agreement than harder cases., Conclusions: A novel 8-item minimally invasive IHR assessment tool was developed and tested for inter-rater reliability using a "safe" vs. "unsafe" rating system with promising results. To promote instrument validity the IHR-OPSA was designed and evaluated within the context of intended use with iterative engagement with experts and testing of constructs against real-world operative videos., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Müller glia (MG) are a relatively quiescent radial glial cell population capable of dedifferentiating to regenerate cells in the zebrafish retina that are lost due to damage. Here, we provide a protocol to both quantify MG cell dedifferentiation behavior during a regenerative response and isolate MG cells by fluorescence activated cell sorting (FACS). First, the retina is exposed to high-intensity light to induce retinal damage and either processed for immunohistochemistry or live MG cells are isolated by FACS that can be used for subsequent genomic or transcriptomic analyses. This method allows us to correlate MG cell behavior observed in situ with their transcriptomic profile at different stages during the regenerative response., (© 2022. Springer Science+Business Media, LLC, part of Springer Nature.)

Background: Few opportunities exist for surgeons to receive technical skills feedback after training. Surgeons at hospitals within the Illinois Surgical Quality Improvement Collaborative were invited to participate in a peer-to-peer video-based coaching initiative focused on improving technical skills in laparoscopic right colectomy. We present a formative qualitative evaluation of a video-based coaching initiative., Methods: Concurrent with the implementation of our video-based coaching initiative, we conducted two focus groups and 15 individual semistructured interviews with participants; all interviews were audio-recorded and transcribed. A subset of surgeons participated in a group video-review session, which was observed by qualitative researchers. Transcripts and notes were analyzed using an organizational behavior framework adapted from executive coaching., Results: Participation in the initiative was primarily motivated by the opportunity to learn from others and improve skills. Surgeons highlighted the value of self-video and peer-video assessment not only to learn new techniques but also for self-reflection and benchmarking. Barriers to participation included logistics (e.g. using the laparoscopic recording devices, coordinating schedules for peer coaching), time commitment, and a surgical culture that assumes the intent of coaching is to address deficiencies., Conclusions: Video-based peer-coaching provides a platform for surgeons to reflect, benchmark against peers, and receive personalized feedback; however, more work is needed to increase participation and sustain involvement over time. There is an opportunity to decrease logistical barriers and increase acceptability of coaching by integrating video-based coaching into existing surgical conferences and established continuous professional development efforts., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Introduction: We summarize the 2018 AUA (American Urological Association) Quality Improvement Summit , Opioid Stewardship in Urology , highlighting appropriate urological opioid use as well as reviewing programs that have been successful in reducing opioid prescribing. The AUA brought together nearly 100 attendees from across the United States, including clinicians who specialize in urology and other specialties, as well as researchers, government officials and others., Methods: The 2018 AUA Quality Improvement Summit was a 1-day meeting held at AUA headquarters in Linthicum, Maryland. Talks and panels highlighted opioid stewardship programs and emphasized research on the nature and management of postoperative pain., Results: The impact of the opioid epidemic is profound and the contribution of postoperative prescribing is noteworthy (eg 6% of opioid naïve patients demonstrate new persistent use habits after surgery and up to 70% of opioid pills prescribed after surgery go unused). Speakers raised awareness of these facts and detailed opportunities to improve, including prudent prescribing, opioid reclamation, use of nonopioid alternatives, and outreach and education., Conclusions: The 2018 AUA Quality Improvement Summit provided a platform for urologists to discuss the opioid epidemic and to learn strategies for combatting this issue from multidisciplinary experts. Physician led opioid stewardship and research, facilitated by this Summit, may enhance the quality and safety of medical care and improve the lives of patients, their families and their communities.

Background: The ability to perform a laparoscopic colectomy is an integral part of a young colorectal surgeon's practice. However, the number of resections required during colorectal residency for a surgeon to be very comfortable performing a laparoscopic colectomy independently is poorly defined. Furthermore, the percentage of trainees that achieve this goal also is unknown., Methods: An electronic survey designed by the Young Surgeon's Committee of the American Society of Colon and Rectal Surgeons (ASCRS) was sent to graduates completing Accreditation Council for Graduate Medical Education (ACGME) colorectal residencies after publication of the Clinical Outcomes Study Group (COST) trial (2004-2009). The data collected included the number of laparoscopic right (LR), laparoscopic left (LL), and laparoscopic hand-assisted left (HAL) colectomies performed during residency. Trainees were asked to assess whether at the completion of their fellowship they with each case were very comfortable (VC, would perform a laparoscopic colectomy independently), somewhat comfortable (SC, would require assistance from colleagues), or not comfortable (NC, would not perform a laparoscopic colectomy)., Results: Of the 176 (51%) former fellows responding to the survey, 42 (24%) reported performing fewer than 10 LRs, 108 (62%) reported 10 to 30 LRs, and 24 (14%) reported more than 30 LRs during their fellowship. With LR, 13 (7.5%) respondents were NC, 42 (21%) were SC, and 119 (68%) were VC. As reported, 58 fellows (33%) performed fewer than 10 LLs, 92 (53%) performed 10-30 LLs, and 22 (13%) performed more than 30 LLs. With LL, 12.2% were NC, 33.7% were SC, and 54.1% were VC. Most of the fellows (90%) who performed 30 or more LR, LL, or HAL colectomies were VC. On the average, each year's graduating fellows were more comfortable with laparoscopic colectomy than those graduating in previous years (P < 0.002)., Conclusions: Performing more than 10 LR colectomies and more than 30 LL colectomies provided the vast majority of colorectal residents with the ability to be very comfortable with these procedures as they entered practice. A concerning number of trainees (46% of LL and 24% of LR trainees) did not reach this benchmark. The new general minimal American Board of Colon and Rectal Surgery (ABCRS) requirement of 50 laparoscopic resections seems appropriate but may require definition regarding the side of the procedure.

Background: Surgical technique might influence rectal cancer survival, yet international practices for surgical treatment of rectal cancer are poorly described., Methods: We performed a cross-sectional survey in a cohort of experienced colorectal surgeons representing 123 centers., Results: Seventy-one percent responded, 70% are from departments performing more than 50 proctectomies annually. More than 50% defined the rectum as "15 cm from the verge." Seventy-two percent perform laparoscopic proctectomy, 80% use oral bowel preparation, 69% perform high ligation of the inferior mesenteric artery, 76% divert stomas as routine for colo-anal anastomosis, and 63% use enhanced recovery protocols. Different practices exist between US and non-US surgeons: 15 cm from the verge to define the rectum (34% vs 59%; P = .03), personally perform laparoscopic resection (82% vs 66%; P = .05), rectal stump washout (36% vs 73%; P = .0001), always drain after surgery (23% vs 42%; P = .03), transanal endoscopic microsurgery for T2N0 in medically unfit patients (39% vs 61%; P = .0001)., Conclusions: Wide international variations in rectal cancer management make outcome comparisons challenging, and consensus development should be encouraged., (Copyright © 2011 Elsevier Inc. All rights reserved.)

Background: Chronic abdominal wall pain (CAWP) occurs in about 30% of all patients presenting with chronic abdominal pain., Methods: The authors review the literature identified in a PubMed search regarding the abdominal wall as the origin of chronic abdominal pain., Results: CAWP is frequently misinterpreted as visceral or functional abdominal pain. Misdiagnosis often leads to a variety of investigational procedures and even abdominal operations with negative results. With a simple clinical test (Carnett's test), >90% of patients with CAWP can be recognized, without risk for missing intra-abdominal pathology., Conclusion: The condition can be confirmed when the injection of local anesthetics in the trigger point(s) relieves the pain. A fasciotomy in the anterior abdominal rectus muscle sheath through the nerve foramina of the affected branch of one of the anterior intercostal nerves heals the pain.

Purpose: This study was designed to identify the clinical features of anastomotic leakage after laparoscopic resection of rectal cancer and to evaluate the outcomes of laparoscopic management for this problem., Methods: Prospectively collected data were obtained from 307 patients with rectal cancer who underwent laparoscopic proctectomy and primary anastomosis. Age, sex, tumor location, tumor stage, body mass index, comorbidities, ileostomy, conversion, intraoperative blood loss, operative time, previous abdominal operation, and hospital stay were analyzed for patients with or without anastomotic leakage. Management and outcome of anastomotic leakage also were analyzed., Results: Anastomotic leakage occurred in 29 patients (9.4 percent). Diverting ileostomy was initially fashioned in 65 patients (21.2 percent). Leakage was related to young age, male sex, lower tumor location, and longer operation time. Ten patients (34.5 percent) were successfully managed with conservative treatment. Seventeen patients (58.6 percent) were managed via a laparoscopic approach. Open surgery was performed in two patients who showed diffuse fecal soiling or had previous conversion, respectively. There was no mortality., Conclusions: When leakage occurs, laparotomy or colostomy is not needed routinely. For surgical intervention, the abdominal cavity should be explored first by laparoscopic visualization because the majority of patients can be successfully managed with laparoscopy and ileostomy.

Purpose: In this study we evaluated the outcome of a standardized enhanced recovery program in patients undergoing ileostomy closure., Methods: Forty-two patients underwent ileostomy closure by a single surgeon and were managed by a standardized postoperative care pathway. On the first postoperative day, patients received oral analgesia and a soft diet. Discharge was based on standard criteria previously published for laparoscopic colectomy patients. Results were recorded prospectively in an Institutional Review Board-approved database, including demographics, operative time, blood loss, complications, length of stay, and readmission data., Results: The median operative time and blood loss were 60 minutes and 17.5 mL, respectively, and median hospital stay was 2 days. Twenty-nine patients (69 percent) were discharged by postoperative Day 2. The complication rate was 23.8 percent; complications included prolonged postoperative ileus (n = 3), early postoperative small-bowel obstruction (n = 1), mortality not related to ileostomy closure (n = 1), minor bleeding (n = 1), wound infection (n = 1), incisional hernia (n = 1), diarrhea (n = 1), dehydration (n = 1). The 30-day readmission rate was 9.5 percent (n = 4). Two patients had reoperation within 30 days for small-bowel obstruction and a wound infection., Conclusions: Ileostomy closure patients managed with postoperative care pathways can have a short hospital stay with acceptable morbidity and readmission rates.

The Physician Quality Reporting Initiative (PQRI) is a pay-for-reporting (P4R) program sponsored by the Centers for Medicare & Medicaid Services open to all health care providers that treat Medicare patients. This P4R initiative provides financial incentives for participation and unlike most pay-for-performance (P4P) programs, there are no penalties for poor performance. PQRI therefore offers Medicare providers nationwide a low-risk opportunity to gain experience with reporting procedures likely to be incorporated into P4P reimbursement schemes. The 74 measures used during the first reporting period are applicable to both generalist and specialist providers and open participation in PQRI to a much broader audience compared with previous federal initiatives. Also in contrast to programs that measure hospital or group quality and reimburse for services at the health system level, measurement and reimbursement in PQRI directly affects individual Medicare providers. The combination of provider-level measurement and reimbursement and efforts to assess care delivered by both generalist and specialist Medicare providers highlights how this P4R initiative is truly a gateway to a P4P reimbursement system. Participation in the PQRI program provides useful experience to Medicare providers and their staff in preparing for future initiatives that try to tie quality to reimbursement.

Background: In children with Hodgkin's disease (HD), a significant residual mass may remain after definitive treatment. It may be composed of necrotic/fibrous tissue or resistant HD. Various imaging modalities are available to assess this mass, including chest x-ray (CXR), computed tomographic (CT) scan, and gallium scan. Our aim was to determine the sensitivity and specificity of each modality for residual HD., Methods: Two hundred fifty-six children with HD during 1985 to 2003 were retrospectively reviewed., Results: Twenty-six patients with HD had residual masses at end of therapy, deemed to be of concern for residual disease. These children had 16 abnormal CXRs, 18 abnormal CT scans, and 9 abnormal gallium scans; all patients underwent biopsy. Ten (38%) showed resistant HD and 16 (62%) had fibrotic and necrotic tissue. The sensitivity and specificity of each imaging modality were 60% and 38% for CXR, 67% and 8% for CT scan, and 71% and 71% for gallium scan, respectively., Conclusions: These imaging modalities were not sufficiently sensitive or specific to predict which residual masses may be harboring resistant HD. Hence, the need for surgical biopsy will remain important in the assessment of these masses. FDG-PET scan, which was not available to these children, is a modality that may improve this assessment.

The inv(16)(p13q22) is observed in 16% of patients with acute myelogenous leukemia (AML). It is classically found in the AML M4Eo subtype, which has distinctive morphological abnormalities in the bone marrow including myelomonocytic differentiation and an increase in atypical bone marrow eosinophils. A gene fusion involving CBFbeta and MYH11 is invariably created by the inv(16)(p13q22) and is thought to be a necessary genetic lesion in this form of leukemia. The most common fusion point occurs at CBFbeta nucleotide (nt) 495 and MYH11 nt 1921; however, several rare variants have been described. We report a patient with AML M4Eo whose leukemic cells contained two distinct CBFbeta-MYH11 transcripts, one rare and the other previously undescribed. Both gene fusion products were cloned and sequenced and the breakpoints were identified. These were at CBFbeta nt 495 and MYH11 nt 994 and CBFbeta nt486 and MYH11 nt 1591. The CBFbeta(495)/MYH11(994) fusion is seen in 5-7% of AML M4Eo, while the CBFbeta(486)/MYH11(1591) fusion is novel. We postulate that these two fusions arose from a single rearranged chromosome 16 by way of alternative splicing. These fusions were associated with a good prognosis in this patient. Molecular diagnostic facilities should be aware of the existence of the CBFbeta(486)/MYH11(1591) variant and its potential association with the previously described type E fusion.

All patients undergoing uncemented total hip arthroplasty for end stage hip disease related to osteonecrosis of the femoral head were assessed prospectively between November 1983 and October 1992. The results of clinical evaluation using the Harris Hip score and radiographic assessment of fixation were analyzed to identify features of success or failure that may be unique to this population. Four different stem types and 4 different acetabular components were used. Sixty-four patients had 98 hips implanted during the time of the study. The 42 male and 22 female patients averaged 41 years of age (range, 21-69 years). Average followup was 87.3 months (7.3 years; range, 31-134 months). The cause of osteonecrosis was corticosteroids (42 hips), alcohol (27 hips), trauma (5 hips), and other (24 hips). Three patients (5 hips) have died and 4 patients (6 hips) are lost to followup. At last followup 65 of 87 hips (75%) remained radiographically stable and clinically functional, 18 of 87 (21%) have been revised, and 4 were failing (osteolysis). Of the 22 hips with revision or impending failure, 4 were for technical reasons on the femoral side and 18 were for acetabular wear. Patient factors such as weight or underlying disease state did not seem to influence the ability to achieve stable fixation or contribute to accelerated failure. Failures related primarily to problems of first generation devices including accelerated wear of acetabular components, technical issues of femoral component placement (undersizing of components or femoral fracture), and the use of noncircumferentially coated femoral components. Age may be a factor in early failure. This 10-year experience with total hip arthroplasty for the patient with end stage hip disease due to osteonecrosis suggests that uncemented total hip arthroplasty can be applied predictably to this younger, potentially more active patient population.