Faculty Bibliography

INTRODUCTION/BACKGROUND:The most feared complication of colorectal anastomoses is leaks resulting in severe morbidity. The concept of staple-line reinforcement is a growing area of interest. In this study, the authors evaluated the feasibility and effect of using 1.5:1 meshed AlloDerm to bolster end-to-end stapled rectal anastomoses in a porcine model. METHODS:A total of 30 female 45-kg domestic pigs were studied, and each served as its own control by creating a bolstered and unbolstered anastomosis in each animal. All anastomoses were created with a 29-mm end-to-end stapling device. Bolstered anastomoses were randomized to proximal and distal positions along the rectum, and each rectorectal anastomosis was separated by an average of 10 cm. The animals were survived to 3, 5, and 30 days. Barium enemas were then performed and the 2 anastomotic sites harvested. Each anastomosis underwent burst testing. The internal diameter of each anastomosis was measured, and a biochemical analysis was performed for elastin and collagen content. RESULTS:Bolstered anastomoses offered no strength advantage as burst pressures were no different when compared with unbolstered anastomoses. There was also no difference in anastomotic internal diameter, biochemical analysis of elastin or collagen, or presence of adhesions when comparing bolstered with unbolstered anastomoses. There were 4 subclinical leaks-1 in the unbolstered group and 3 in the bolstered group. CONCLUSIONS:The routine use of 1.5:1 meshed AlloDerm sandwich bolsters in stapled rectal anastomosis does not confer any detectable advantage in anastomotic strength. Further studies are needed to determine equivalence to traditional stapled anastomoses.

CONTEXT: Atherosclerotic cardiovascular diseases, including coronary heart disease (CHD), carotid artery stenosis (CAS), peripheral artery disease (PAD), and abdominal aortic aneurysm (AAA), affect millions of U.S. adults and are leading causes of morbidity and mortality. There is some uncertainty regarding the utility of certain screening tests for prevention of cardiovascular morbidity and mortality. EVIDENCE ACQUISITION: Current guidelines and studies pertaining to CHD, CAS, PAD, and AAA screening in the adult population were reviewed. EVIDENCE SYNTHESIS: CHD risk can be estimated by the Framingham Risk Score (FRS), which is valuable in identifying high-risk asymptomatic adults who may benefit from preventive treatments. There is moderate certainty that the benefits of screening do not outweigh the harms for individuals with asymptomatic CAS. The potential harms associated with routine PAD screening in asymptomatic adults are also likely to exceed benefits. Ultrasonography is a safe, noninvasive, and reliable screening test used to identify AAAs for treatment in men aged >65 years who have ever smoked. CONCLUSIONS: American College of Preventive Medicine (ACPM) recommends CHD risk assessment using the FRS to guide risk-based therapy. ACPM does not recommend routine screening of the general adult population using electrocardiogram, exercise-stress testing, computed tomography scanning, ankle-brachial index, carotid intima medial thickness, or emerging risk factors, including high-sensitivity C-reactive protein (hs-CRP). ACPM does not recommend routine screening of the general adult population for CAS or PAD. ACPM recommends one-time AAA screening in men aged 65-75 years who have ever smoked. Routine AAA screening in women is not recommended.

OBJECTIVE: To present an unusual case of multiple endocrine neoplasia type 2A (MEN 2A) syndrome and to describe how this case differs from the typical clinical features and usual genetic variations seen in classic MEN 2A syndrome. METHODS: We describe the work-up, diagnosis, and treatment course of a patient who presented with multi-focal pheochromocytomas, parathyroid adenoma, thyroid abnormalities, and a RET mutation. RESULTS: A 65-year-old man with previously treated pheochromocytoma presented with a parathyroid adenoma, multiple thyroid nodules, and a RET polymorphism. C-cell hyperplasia (CCH) or medullary thyroid carcinoma (MTC) occurs with nearly 100% penetrance in patients with MEN 2A syndrome. Our patient did not have CCH or frank MTC, but he expressed the other manifestations of the MEN 2A syndrome. CONCLUSION: MEN 2A syndrome is characterized by the occurrence of MTC, pheochromocytomas, and parathyroid hyperplasia or adenomas. It is inherited in an autosomal dominant fashion, and more than 80% of patients with MEN 2A have a specific substitution on codon 634 of the RET proto-oncogene. Despite the nearly 100% penetrance of MTC or CCH in patients with MEN 2A, our patient did not have this. Additionally, he exhibited a RET mutation that is uncommonly seen in classic MEN 2A syndrome. Our patient may have a MEN 2A variant or a pseudo-MEN 2A syndrome.

BACKGROUND: The authors developed and evaluated an interactive, Web-based module to train medical students in screening and brief intervention (SBI) for unhealthy alcohol use. METHODS: First-year students were randomized to module versus lecture. Change in knowledge, attitudes, and confidence were compared. Performance was assessed by objective structured clinical examination (OSCE) and analyzed by intention to treat and treatment received. RESULTS: Of 141 consenting students, 64% (n = 90) completed an intervention (54% lecture vs. 70% Web assigned). Knowledge, confidence, and attitudes improved in both groups, with more improvement in Advise-Assist knowledge for Web students (14% vs. -3%, p = .003). Web students outperformed their lecture peers in both general communication (65% vs. 51% items well done, p = .004) and alcohol-specific tasks (54% vs. 41%, p = .021) on OSCE. Analysis by treatment received enhanced between-group differences. CONCLUSION: Use of a Web-based module to teach SBI is associated with greater knowledge gain and skills performance compared with a lecture covering similar content. The module provides an efficient means for training in this area

PURPOSE: Although nearly half of American medical school classes are comprised of women, less than 5% of female medical students enter the surgical subspecialties compared to nearly 20% of male students. Many women are concerned that a career in a surgical field will limit their personal choices. In an effort to evaluate if urology is conducive to a satisfying lifestyle, we surveyed all 365 board certified women urologists in the United States in 2007 to find out how satisfied they are with their choice of urology. MATERIALS AND METHODS: A 114 item anonymous survey was mailed to all 365 American Board Certified female urologists in 2007. Results were analyzed. RESULTS: Of the 244 women (69%) who responded, 86.8% (211) reported being satisfied with their decision to enter urology. Given the choice to repeat the decision, 81% (198) said that they would remain in medicine and 91.4% (222) would choose a surgical subspecialty again. The majority of respondents who stated they would choose a career outside of medicine also stated their family life had been significantly compromised by their career. Those who did not think their family life was compromised reported they would remain in medicine. There was a positive correlation between the level of satisfaction with the work itself and with income level (p = 0.006). CONCLUSIONS: Despite the small number of women who choose a career in urology, the number of satisfied women indicates urology is a career conducive to having a balanced and fulfilling life; professionally, personally and financially.

Advances in shared decision making (SDM) have not successfully translated to practice. We describe our experience and lessons learned in translating an SDM process for primary care cardiovascular disease management. The SDM process operationalized recognized SDM elements using workflow modifications, a computerized patient questionnaire, an automated risk calculator to identify at-risk patients, a web-based tool for patients to choose interventions, automated feedback on the personalized benefits of choices, and a web-based tool for providers to view patient risk, patient choice, and expert advice. Although medication was typically the intervention resulting in the greatest risk reduction, the majority of patients preferred dietary and other lifestyle changes. Patients generally favored the opportunity to make and communicate choices. However, providers only viewed patient choice data in 20% of the encounters. Translation of the SDM process was successful for patients and the difference between patient choice and optimal risk reduction points to the importance of engaging in an SDM process. Lack of engagement by providers may be due to "alert fatigue" or to the failure of the SDM process to improve efficiency in the office visit.

We developed a Self-Regulation Measure for Computer-based learning (SRMC) tailored toward medical students, by modifying Zimmerman's Self-Regulated Learning Interview Schedule (SRLIS) for K-12 learners. The SRMC's reliability and validity were examined in 2 studies. In Study 1, 109 first-year medical students were asked to complete the SRMC. Bivariate correlation analysis results indicated that the SRMC scores had a moderate degree of correlation with student achievement in a teacher-developed test. In Study 2, 58 third-year clerkship students completed the SRMC. Regression analysis results indicated that the frequency of medical students' usage of self-regulation strategies was associated with their general clinical knowledge measured by a nationally standardized licensing exam. These two studies provided evidence for the reliability and concurrent validity of the SRMC to assess medical students' self-regulation as aptitude. Future work should provide evidence to guide and improve instructional design as well as inform educational policy

Understanding how medical malpractice occurs and is resolved is important to improving patient safety and preserving the viability of a physician's career in academic medicine. Every physician is likely to be sued by a patient, and how the physician responds can change his or her professional life. However, the principles of medical malpractice are rarely taught or addressed during residency training. In fact, many faculty at academic medical centers know little about malpractice.In this article, the authors propose that information about the inciting causes of malpractice claims and their resolution should be incorporated into residency professionalism curricula both to improve patient safety and to decrease physician anxiety about a crucial aspect of medicine that is not well understood. The authors provide information on national trends in malpractice litigation and residents' understanding of malpractice, then share the results of their in-depth review of surgical malpractice claims filed during 2001-2008 against their academic medical center. The authors incorporated those data into an evidence-driven curriculum for residents, which they propose as a model for helping residents better understand the events that lead to malpractice litigation, as well as its process and prevention

Mycobacterium tuberculosis that is resistant to both isoniazid (INH) and rifampin (RIF) is spreading. It has become a public health problem in part because the standard culture methods used to determine the appropriate treatment regimen for patients often take months following the presumptive diagnosis of tuberculosis. Furthermore, the misidentification of nontuberculosis mycobacteria (NTM) in patients presumably suffering from tuberculosis results in additional human and health care costs. The mechanisms of resistance for several drugs used to treat Mycobacterium tuberculosis are well understood and therefore should be amenable to determination by rapid molecular methods. We describe here the use of PCR followed by electrospray ionization mass spectrometry (PCR/ESI-MS) in an assay that simultaneously determines INH and RIF resistance in Mycobacterium tuberculosis and identifies and determines the species of NTMs. The assay panel included 16 primer pairs in eight multiplexed reactions and was validated using a collection of 1,340 DNA samples from cultured specimens collected in the New York City area, the Republic of Georgia, and South Africa. Compared with phenotypic data, the PCR/ESI-MS assay had 89.3% sensitivity and 95.8% specificity in the determination of INH resistance and 96.3% sensitivity and 98.6% specificity in the determination of RIF resistance. Based on a set of 264 previously characterized liquid culture specimens, the PCR/ESI-MS method had 97.0% sensitivity and 99.9% specificity for determination of NTM identity. The assay also provides information on ethambutol, fluoroquinolone, and diarylquinoline resistance and lineage-specific polymorphisms, to yield highly discriminative digital signatures potentially suitable for epidemiology tracking