Background Endovascular aortic repair has revolutionized the management of traumatic blunt aortic injury (BAI). However, debate continues about the extent of injury requiring endovascular repair, ...particularly with regard to minimal aortic injury. Therefore, we conducted a retrospective observational analysis of our experience with these patients. Methods We retrospectively reviewed all BAI presenting to an academic level I trauma center over a 10-year period (2000-2010). Images were reviewed by a radiologist and graded according to Society for Vascular Surgery guidelines (grade I-IV). Demographics, injury severity, and outcomes were recorded. Results We identified 204 patients with BAI of the thoracic or abdominal aorta. Of these, 155 were deemed operative injuries at presentation, had grade III-IV injuries or aortic dissection, and were excluded from this analysis. The remaining 49 patients had 50 grade I-II injuries. We managed 46 grade I injuries (intimal tear or flap, 95%), and four grade II injuries (intramural hematoma, 5%) nonoperatively. Of these, 41 patients had follow-up imaging at a mean of 86 days postinjury and constitute our study cohort. Mean age was 41 years, and mean length of stay was 14 days. The majority (48 of 50, 96%) were thoracic aortic injuries and the remaining two (4%) were abdominal. On follow-up imaging, 23 of 43 (55%) had complete resolution of injury, 17 (40%) had no change in aortic injury, and two (5%) had progression of injury. Of the two patients with progression, one progressed from grade I to grade II and the other progressed from grade I to grade III (pseudoaneurysm). Mean time to progression was 16 days. Neither of the patients with injury progression required operative intervention or died during follow-up. Conclusions Injury progression in grade I-II BAI is rare (∼5%) and did not cause death in our study cohort. Given that progression to grade III injury is possible, follow-up with repeat aortic imaging is reasonable.
Background With the institution of the work-hour restrictions in 2003, less time may be available for surgical residents to learn operative technique and judgment. While numerous studies have ...evaluated the use of surgical simulation training to enhance operative skills, little is known about the quality of teaching that takes place in the operating room (OR). The purpose of this study was to assess residents' perception of faculty teaching in the OR in order to target ways to improve operative education. Methods A request for resident participation in an online survey was sent to the Program Coordinator at all 255 ACGME-accredited general surgery residency programs. Results A total of 148 programs (59%) participated in the survey, and anonymous responses were submitted by 998 of 4926 residents (20%). Most residents reported that attending surgeons verbalize their operative approach (55%), include residents in intraoperative decisions (61%), and offer technical advice (84%). However, few residents reported that faculty help to identify the resident's personal educational operative goals preoperatively (18%) or discuss areas of improvement with residents (37%). Of all cases scrubbed in the past year, most residents feel as though they only actually performed the procedure between 26% and 50% (29%) or between 51% and 75% (32%) of the time. However, more than half of all residents (51%) log these procedures for ACGME as primary surgeon 76%–100% of the time. Conclusions This study demonstrates that from the residents' perspective, a number of opportunities exist to improve teaching in the OR, such as guiding residents with preoperative preparation and providing them with constructive feedback. These findings also suggest that residents may be logging cases without feeling as though they actually perform the operations.
Objective: Despite well-documented good early results and benefits of endoluminal stent graft repair of abdominal aortic aneurysm (J Vasc Surg 2002;35:1137-44.)(AAA), the long-term outcome of this ...method of treatment remains uncertain. In particular, concern exists that late effectiveness and durability are inferior to that of open repair. To determine the incidence and causes of clinical failures of endovascular AAA repair, a 7-year experience with 362 primary AAA endografts was reviewed. Methods: Clinical failures were defined as deaths within 30 days of the procedure, conversions (early and late) to open AAA repair, AAA rupture after endoluminal treatment, or AAA sac growth of more than 5 mm in maximal diameter despite endograft repair. Endoleak status per se was not considered unless it resulted in an adverse event. If clinical problems arose but could be corrected with catheter-based therapies or limited surgical procedures, thereby maintaining the integrity of successful stent graft treatment of the AAA, such cases were considered as primary assisted success and not classified as clinical failures. Results: The average follow-up period was 1.5 years. Six deaths (1.6%) occurred after the procedure, all in elderly patients or patients at high risk. Five patients (1.4%) needed early conversion (immediate, 2 days) to open repair for access problems or technical difficulties with deployment, resulting in an implantation success rate of 98.6%. Eight patients (2.2%) underwent late conversion for a variety of problems, including AAA expansion (n = 4), endograft thrombosis (n = 1), secondary graft infection (n = 2), and rupture at 3 years (n = 1). Rupture occurred in an additional two patients for a total incidence rate of 0.8%. AAA sac growth of greater than 5 mm was observed in 20 patients (5.6%), four of whom have undergone successful catheter-based treatments to date. Overall, 39 patients (10.7%) needed catheter-based (n = 45) or limited surgical (n = 4) reinterventions for a variety of late problems that were successful in 92%. Conclusion: In our 7-year experience, one or more clinical failures of endovascular AAA repair were observed in 31 patients (8.3%). Reinterventions were necessitated in a total of 10.7% of patients but were usually successful in maintaining AAA exclusion and limiting AAA growth. These results emphasize that endovascular repair provides good results and many benefits for most properly selected patients but is not as durable as standard open repair. (J Vasc Surg 2002;35:1137-44.)
Abstract Background The aim of this study was to examine the relationship between patient education level and 5-year mortality after major lower extremity amputation. Methods The records of all ...patients who underwent above-knee or below-knee amputation at the Nashville Veterans Affairs Medical Center by the vascular surgery service between January 2000 and August 2006 were retrospectively reviewed. Formal levels of education of the study patients were recorded. Outcomes were compared between those patients who had completed high school and those who had not. Bivariate analysis using χ2 and Student's t tests and multivariate logistic regression were performed. Results Five-year mortality for patients who had completed high school was lower than for those who had not completed high school (62.6% vs 84.3%, P = .001), even after adjusting for important clinical factors (odds ratio for death, .377; 95% confidence interval, .164–.868; P = .022). Conclusion Patients with less education have increased long-term mortality after lower extremity amputation.
Background The Surgical Morbidity and Mortality conference has long been used as an opportunity for both process improvement and resident education. With recent heightened focus on creating ...environments of safety and on meeting the Accreditation Council for Graduate Medical Education (ACGME) General Competencies, novel approaches are required. With the understanding that the provision of medical care is an inherently multidisciplinary enterprise, we advocate the creation and use of a Multidisciplinary Morbidity and Mortality conference (MM&M) as a means to establish this culture of safety while teaching the ACGME General Competencies to surgery residents. Methods A quarterly MM&M conference was implemented to foster communication between disciplines, provide a forum for quality improvement, and enhance patient care. All stakeholders in the perioperative enterprise attend, including the departments of surgery, anesthesia, radiology, pharmacy, nursing, environmental services, risk management, and patient services. Cases that expose system issues with potential to harm patients are discussed in an open, nonconfrontational forum. Solutions are presented and initiatives developed to improve patient outcomes. We retrospectively reviewed the topics presented since the conference's inception, grouping them into 1 of 7 categories. We then evaluated the completion of the improvement initiatives developed after discussion at the conference. Results Over a 21-month period, 11 cases were discussed with 23 “actionable” initiatives for quality improvement. Cases were grouped by category; procedures (36.5%), process (36.5%), patient-related (9%), communication (9%), medication (9%), device (0%), and ethics (0%). All cases discussed addressed at least 4 of the 6 ACGME General Competencies. Conclusions Like the practice of medicine, the occurrence of adverse outcomes is frequently multidisciplinary. An MM&M conference is useful in its potential to meet ACGME General Competencies, engender a culture of patient safety, and rapidly achieve quality improvement and systems health care delivery initiatives in a large academic medical center.
Objectives The use of social networking (SN) sites, such as Facebook and Twitter, has skyrocketed during the past 5 years, with more than 400 million current users. What was once isolated to high ...schools or college campuses has become increasingly ubiquitous in everyday life and across a multitude of industries. Medical centers and residency programs are not immune to this invasion. These sites present opportunities for the rapid dissemination of information from status updates, to tweets, to medical support groups, and even clinical communication between patients and providers. Although powerful, this technology also opens the door for misuse and policies for use will be necessary. We strive to begin a discourse in the surgical community in regard to maintaining professionalism while using SN sites. Results The use of SN sites among surgical house staff and faculty has not been addressed previously. To that end, we sought to ascertain the use of the SN site Facebook at our residency program. Of 88 residents and 127 faculty, 56 (64%) and 28 (22%), respectively, have pages on Facebook. Of these, 50% are publicly accessible. Thirty-one percent of the publicly accessible pages had work-related comments posted, and of these comments, 14% referenced specific patient situations or were related to patient care. Conclusions Given the widespread use of SN websites in our surgical community and in society as a whole, every effort should be made to guard against professional truancy. We offer a set of guidelines consistent with the Accreditation Council for Graduate Medical Education and the American College of Surgeons professionalism mandates in regard to usage of these websites. By acknowledging this need and by following these guidelines, surgeons will continue to define and uphold ethical boundaries and thus demonstrate a commitment to patient privacy and the highest levels of professionalism.
Abstract Background The impact of high-fidelity simulators as an adjunct for endovascular training of general surgery residents has not yet been defined. The purpose of this study was to evaluate ...general surgery resident perspectives on the value of a simulator-based endovascular training program by using various measurement tools. Methods General surgery residents in postgraduate years 1 to 5 (n = 50) participated in a focused endovascular training course covering aortoiliac, renal, and carotid artery disease. The components of the course included didactic lecture, self-learning course material and computer training modules, hands-on exposure to endovascular instruments, and endovascular procedure simulation using a mobile SimSuite unit (Medical Simulation Corporation, Denver, CO). Course participants completed pre- and postcourse questionnaires, knowledge-based testing, and endovascular simulator metric testing. Results Of the 50 general surgery residents who completed the precourse questionnaire and knowledge-based testing, 41 completed the entire program including the postcourse questionnaire and knowledge-based testing, and 33 completed endovascular simulation metric testing. Subjective responses from pre- and postcourse surveys highlighting the residents’ perceptions of the potential role of endovascular simulation as part of general surgery residency training showed favorable responses. On completion of the course, mean knowledge-based test scores had statistically significant improvement (pretest, n = 50, 59.5% ± 12.1% correct and posttest, n = 41, 69.1% ± 15.4% correct P = .003). For metric testing of a simulated endovascular procedure (n = 33), 93.9% completed all of the defined tasks within the allotted time period (mean time, 12.2 ± 4.36 minutes; range, 4.1–26.6 minutes; 95% confidence interval for mean 10.8–13.6 minutes). Conclusions Based on subjective and objective measures, general surgery residents found valuable and benefited in knowledge base from a focused simulator-based endovascular training program. Integrating endovascular simulation into general surgery resident training and its influence on resident interest in vascular specialization as a career choice holds future potential.
Bedside placement of inferior vena cava filters by using either transabdominal duplex ultrasonography or intravascular ultrasonography (IVUS) has been shown to be safe and effective. We review ...techniques for bedside filter placement with transabdominal duplex ultrasonography, IVUS with dual venous access, and IVUS with single venous access. Transabdominal duplex ultrasonography and IVUS remain our preferred techniques for filter placement when feasible, especially in critically ill and immobilized patients.
Endovascular abdominal aortic aneurysm repair (EAR) requires long-term surveillance for endoleak or increase in aneurysm diameter. We analyzed the natural history of and risk factors for endoleak ...development.
Endoleak is a common complication of EAR that can lead to aneurysm enlargement and even rupture. Following EAR, imaging studies are used to identify leaks since patients with endoleak may require additional endovascular interventions or conversion to open repair. No criteria currently exist for cessation or reduction in frequency of screening imaging studies.
Data on 220 patients undergoing EAR were retrospectively reviewed. Kaplan-Meier survival analysis and Cox proportional hazards regression were used with the end point being new endoleak development. Potential risk factors included preoperative aneurysm diameter, number of negative surveillance studies, and postoperative increase in diameter.
A total of 52 patients (24%) who underwent EAR had endoleak detected during postoperative follow-up, which averaged 19 months (range, 0.4-101 months). One, 6-, 12-, and 24- month endoleak-free survival was 90%, 80%, 77%, and 73%, respectively. Three leaks occurred after year 2, at postoperative months 24, 48, and 85. Increasing number of negative screening studies was negatively associated with risk for endoleak development (B = -3.122, P < 0.001), while increase in aneurysm diameter was positively associated with risk for endoleak (B = 0.072, P = 0.04).
Risk for endoleak declines as the number of negative postoperative scans increases, but new endoleaks are identified as late as 7 years following EAR. Reduction in screening frequency cannot be uniformly recommended at this time. Patients with documented aneurysm expansion should be monitored carefully and endoleak should be suspected.
Transperitoneal (TP) and retroperitoneal (RP) approaches have equal efficacy in elective open abdominal aortic aneurysm (AAA) repair. The effect of open operative approach on patient-specific ...outcomes after AAA repair was tested.
Consecutive patients undergoing open AAA repair at the Veterans Affairs Tennessee Valley Healthcare System between January 2000 and August 2008 were retrospectively reviewed. Analysis was performed to examine the effects of demographic and clinical covariates on postoperative outcomes.
A total of 106 patients were identified: 54 with TP approach and 52 with RP approach. Demographics and preoperative comorbidities were equivalent (p > or = 0.10), with the exception of chronic obstructive pulmonary disease which was more prevalent in the TP group (61 vs. 40%). Operative times were longer in the TP group (4.6 vs. 3.5 hours; p < 0.01); however, significantly more TP patients had reconstruction with a bifurcated graft (72 vs. 2%; p < 0.01). Postoperative nasogastric tube decompression times were shorter in the RP group (1 vs. 3 days; p < 0.01), and RP approach led to a quicker return to preoperative diet (4 vs. 6 days; p = 0.05). Patients undergoing RP repair developed fewer incisional hernias (2 vs. 15%; p = 0.03).
RP approach to AAA repair offers patients faster return of bowel function and is associated with fewer incisional hernias.
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