Endovascular stent graft repair of left renal artery pseudoaneurysm from malignant fibrous histiosarcoma.

A renal artery pseudoaneurysm is a rare but life-threatening complication. Historically, these vascular abnormalities have been treated using open surgery, but today's endovascular techniques provide less invasive forms of treatment. Though literature supports selective angio-embolization as an effective form of repair, there are little data on covered stent placement for renal artery psuedoaneurysms. The authors report a case of left renal artery pseudoaneurysm repaired with a covered stent that allowed a patient with malignant fibrous histiosarcoma to receive chemotherapy with minimal risk of rupture.

Strategies to accommodate resident work-hour restrictions: impact on surgical education.

BACKGROUND: The introduction of duty-hour restrictions has impacted surgical training. Several strategies were introduced by training programs in response to these restrictions. The purpose of this study was to assess the various strategies employed by residency programs to comply with work-hour restrictions with respect to the impact on the quality of surgical education. METHODS: A national survey was developed and distributed to resident members of the Resident and Associate Society of the American College of Surgeons in all accredited residency programs across North America. Questions in the survey addressed 10 separate accommodation strategies used by training programs to adhere to resident work-hour restrictions. Resident respondents completed a 5-point Likert scale rating each strategy according to its impact on surgical education (detrimental, not very helpful, neutral, somewhat helpful, and very helpful). RESULTS: A total of 599 (9.7%) responses were received from 6186 members of the Resident Associate Society. The use of health information technology (IT), nurse practitioners, and physician assistants were most highly rated. Hiring clinical fellows, establishing nonteaching services, and shift-work scheduling were the three most poorly rated accommodations to work-hour restrictions with respect to resident education. CONCLUSIONS: Hospital IT and nonphysician care providers were rated by residents to optimize surgical education in the current work-hour limitation environment. We infer that strategies which lead to increased efficiency and redistribution of resident workload allow surgical trainees to spend more time on activities perceived to have higher educational value.

The chimney procedure is an emergently available endovascular solution for visceral aortic aneurysm rupture.

A 79-year-old woman presented with a ruptured saccular thoracoabdominal aortic aneurysm involving the celiac and mesenteric artery. The patient was unfit for open surgical repair. A "chimney" procedure was performed, which involved placement of stents in the aortic side branches alongside the endograft. The patient underwent another chimney procedure 2 weeks later for a type I endoleak. Computed tomography angiography (CTA) at 1 and 6 months showed a good result with no endoleaks or graft migration. The chimney procedure provides an alternative for emergency patients unfit for open repair and has the advantage that stents can be used that are already available in most institutions.

Should all duty hours be the same? Results of a national survey of surgical trainees.

BACKGROUND: Although duty hours regulations (DHR) were introduced as a measure to improve patient safety and graduate medical education, new evidence suggests that the opposite might be happening. This study was designed to assess surgery resident perceptions of the impact that DHR have had on their education, the number of hours they believed would be ideal for their training, and to evaluate the effect of seniority on these opinions. STUDY DESIGN: An Internet-based survey was electronically distributed to all Resident and Associate members of the American College of Surgeons. RESULTS: Of 599 respondents, 247 (41%) believed that DHR were an important barrier to their education, and 266 (44%) believed that the ideal work week should have 80 to 100 hours. These two opinions were highly correlated, and were increasingly voiced with increased resident experience. Senior residents were more likely to view DHR as an important barrier to their education whether or not they were general surgery residents or were trained in small, medium, or large programs. CONCLUSIONS: A large subset of surgery residents, particularly senior residents, considered DHR an important barrier to their education and expressed a desire to work longer hours than restrictions allow. These findings suggest that strict and uniform DHR do not allow for optimal training of residents at different levels who have disparate educational goals and needs. Introducing some flexibility into senior residents' limitations should be considered.

Frequency of inappropriate continuation of acid suppressive therapy after discharge in patients who began therapy in the surgical intensive care unit.

STUDY OBJECTIVE: To determine the frequency with which patients who begin to receive stress ulcer prophylaxis in the surgical intensive care unit (SICU) are discharged receiving inappropriate acid suppressive therapy (AST). DESIGN: Prospective, observational evaluation. Setting. Level 1 trauma center and academic tertiary care hospital. PATIENTS: A total of 248 consecutive adult patients admitted to the SICU during a 6-month period who began to receive AST with a proton pump inhibitor or histamine(2)-receptor antagonist. MEASUREMENTS AND MAIN RESULTS: In most patients (237 [95.6%] of 248), initiation of AST was associated with one or more risk factors for gastrointestinal bleeding. Continuation of AST during hospitalization outside the SICU occurred in 215 patients (86.7%). Sixty patients (24.2%) were discharged from the hospital receiving AST: 52 patients (21.0%) went to skilled nursing facilities or rehabilitation centers, and eight (3.2%) were discharged home. Compared with those whose AST was discontinued in the hospital, patients who continued to receive AST after hospital discharge required extended mechanical ventilation (p=0.001), had twice as many risk factors for gastrointestinal bleeding (p<0.001), were frequently discharged with anticoagulant therapy (p<0.001), exhibited longer hospital and SICU stays (p<0.001), and more frequently demonstrated Glasgow Coma Scale scores of 8 or lower and/or had head injury (p<0.001), hepatic failure (p=0.004), and major trauma (p=0.049). Evaluation of continuation of AST during hospitalization revealed that only 7.4% (16/215) of patients at SICU transfer and 5.0% (3/60) of patients at hospital discharge had a compelling risk factor to continue AST as demonstrated by a coagulopathy at discharge; no patients required mechanical ventilation at hospital discharge. CONCLUSION: Most patients inappropriately continued to receive stress ulcer prophylaxis during post-SICU hospitalization. Presence of risk factors for stress ulcer-related gastrointestinal bleeding at SICU admission appears to influence continuation of AST after discharge from the hospital. A low percentage (3.2%) of patients was discharged home receiving inappropriate AST, yet overall, few study patients demonstrated a compelling risk factor for continuation of AST.

Effects of differences in percent total body surface area estimation on fluid resuscitation of transferred burn patients.

We sought to analyze the effect that differences in estimation of burn size and burn resuscitation had on complications and death among our transferred burn patients, in comparison with outcomes for burn patients directly admitted to our rural Level 1 trauma center. A retrospective chart review was performed for all patients suffering thermal injuries who were treated at a rural Level I trauma center and regional burn center. Percent TBSA burn estimates at referring hospitals were compared to burn center estimates. The Parkland formula was used to calculate the difference between the theoretical and actual resuscitation volumes given prior to admission. Of 127 burn patients, 82 (65%) were transferred from outside hospitals. For small burns (<20% TBSA), the mean estimate difference between outside hospitals and the burn center was 4.3 +/- 6.9%. For large burns (> or =20% TBSA), the mean estimate difference was -4.9 +/- 9.1% (P < .0002). The mean difference in intravenous fluid administered prior to admission to the burn center and the Parkland formula guideline was an excess of 554 +/- 1099 ml for small burns and a deficit of -414 +/- 2081 ml for larger burns (P = .03, Wilcoxon's rank-sum test). Differences in burn estimation and deviation from the Parkland formula were not statistically significant for complication and death. In the rural, transferred burn patient, smaller burns tended to be overestimated and overresuscitated and larger burns tended to be underestimated and underresuscitated.

A survey of airway and ventilator management strategies in North American pediatric burn units.

A survey was used to gather information regarding airway management patterns in thermally injured children. North American pediatric burn centers listed by the American Burn Association were sent a survey designed to examine patterns of pediatric airway management in children with acute respiratory failure. The sample population means for the number of patients ventilated more than 48 hours and the number of patients ventilated more than 48 hours with inhalation injury were used to separate centers into large and small pediatric burn centers. Small pediatric burn centers had less than 50 patients who were intubated during a 5-year period. A five-point nominal scale was used to facilitate statistical analysis. Twenty-five pediatric burn centers included in the analysis estimated that 11,494 children were admitted during the 5-year period. There was no statistically dominant ventilator mode being used in the setting of acute respiratory failure identified by this survey. Large pediatric burn centers reported more frequent use of cuffed endotracheal tubes and more frequent change from an uncuffed to a cuffed endotracheal tube in patients who were difficult to ventilate because of an excess leak. Large pediatric burn centers reported a higher prevalence of tracheomalacia then small pediatric burn centers. Steroids were used by most centers before extubation in patients with persistent airway edema. No centers reported complications from steroid use. There is lack of clear consensus regarding the application of various ventilator modes in the setting of acute respiratory failure irrespective of center volume. There were divergent of practice patterns between large and small pediatric burn centers regarding the use of cuffed endotracheal tubes and the timing of tracheostomy. There was agreement between large and small pediatric burn centers in tracheostomy use in children older the age of 7 and the use of steroids as an adjunct to extubation in patients with lingering airway edema. Pediatric burn patients may benefit from clinical trials that clarify the advantages and disadvantages of various ventilator modes, the use of cuffed tubes, and the timing of tracheostomy.