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Biomedical subjects

Jay B Prystowsky

Publications and source records attributed to Jay B Prystowsky.

11 recordsLinked to original sources
PubMed2005

Are young surgeons competent to perform alimentary tract surgery?

BACKGROUND: Assessment of competency during residency training has received increased attention recently. There has been less attention given to the competency of residents after training. HYPOTHESIS: Patient outcomes for alimentary tract surgery (ATS) should be similar for surgeons who recently completed their residency training compared with more experienced surgeons, indicating that the younger surgeons had achieved clinical competency on completion of their residency training. DESIGN: Retrospective analysis of Illinois inpatient discharge data (January 1, 1996-December 31, 1999). SETTING: All 205 nonfederal acute care hospitals in Illinois. PATIENTS: The patients were 120 160 adult Illinois residents who underwent ATS in Illinois. MAIN OUTCOME MEASURES: Mortality rate, morbidity rate, and hospital length of stay. RESULTS: Regression analyses demonstrated that surgeon experience was a significant determinant of mortality and morbidity rates, with worse outcomes observed for patients of young surgeons undergoing high-complexity ATS (ie, procedures other than appendectomy and cholecystectomy). CONCLUSIONS: For high-complexity ATS, there was a significant disparity in outcomes between young and more experienced surgeons, whereas for low-complexity ATS, there was no disparity. Attention to competency during residency training is warranted, especially as it relates to high-complexity ATS. Furthermore, patient outcomes provide an opportunity to assess competency after training that can complement assessments during training and together identify educational strengths and weaknesses of residency training.

Adult↗
PubMed2005

Prospective analysis of the incidence of deep venous thrombosis in bariatric surgery patients.

BACKGROUND: Venous thromboembolism (VTE), manifest as deep venous thrombosis (DVT) or pulmonary embolus, remains an important complication in bariatric operation patients. Our purpose was to determine the incidence of VTE in a consecutive series of patients undergoing Roux-en-Y gastric bypass (RYGB) to guide appropriate therapy. METHODS: We prospectively examined a consecutive series of RYGB patients with bilateral lower-extremity venous duplex scan (DS) preoperatively, on postoperative day (POD)#2, and approximately POD#14. Preoperative clinical information including history of VTE, intraoperative data, postoperative course, and complications were recorded. Heparin 5,000 U subcutaneously was administered before the operation and every 12 hours throughout hospitalization along with sequential compression devices. Ambulation was instituted on POD#1. Temporary caval filters were placed in patients with a history of VTE. RESULTS: A total of 106 patients were examined. Body mass index was 51 +/- 8 kg/m2 (range, 40-73 kg/m2). Laparoscopic RYGB was performed in 75%. Hospital length of stay was 2.5 +/- 0.6 days. One hundred patients had no history of VTE; none had a positive DS preoperatively or on POD#2. One patient had a positive POD#14 DS and a second patient had a superficial thrombophlebitis, but a negative DS for DVT (both patients were symptomatic). Six patients had a prior history of VTE; all underwent preoperative placement of a temporary caval filter. Of these 6 patients, 1 developed a new postoperative DVT and another patient had thrombus on the caval filter with a negative lower-extremity DS. CONCLUSIONS: Occult DVT was not observed preoperatively in RYGB patients, suggesting that routine preoperative DS is not necessary in the absence of VTE history. Prophylaxis of heparin and sequential compression devices appears satisfactory in preventing DVT with only a 1% incidence in patients with no prior history of VTE. Two of the 6 patients with prior history of VTE showed evidence of thrombus postoperatively. Although a small number of patients, this finding suggests that a caval filter should be placed preoperatively in RYGB patients with a history of VTE.

Adult↗
PubMed2004

Questioning skills: the effect of wait time on accuracy of medical student responses to oral and written questions.

BACKGROUND: Pauses (wait time) after asking questions in pre-college classes result in improved discussion and answer accuracy. The authors hypothesized that this would extend to medical students. METHOD: Third-year surgery clerks were randomized to three-second or six-second wait times after questions asked of them during a scripted lecture. Students were randomized within each session to answer 21 scripted questions. Students also completed a post-lecture written examination. RESULTS: Correct responses ranged from 17% to 100% for oral and 22% to 100% for written questions. Answer accuracy could not be distinguished between three- and six-second wait times for oral or written questions. CONCLUSIONS: The benefit of increasing wait times from three to six seconds appears not to extend to medical students. This may represent evolution of learning or different learning modes in medical students. Alternatively, maximum benefit may be achieved in medical students with shorter wait times.

Clinical Clerkship↗
PubMed2003

A learning prescription permits feedback on feedback.

BACKGROUND: Students consistently identified inadequate feedback as a deficiency in our third-year clerkship. METHODS: We asked students to solicit one faculty and one resident every 2 weeks for written feedback on a "feedback prescription pad." Each prescription requested four comments: two things the student did well and two things the student needs to improve. Students rated feedback using a five-point scale. A three-point categorization scheme was employed to assess the quality of feedback. RESULTS: Students' rating of feedback improved significantly compared with a previous time period (3.5 +/- 1.2 versus 2.6 +/- 1.2, P <0.01). Interrater reliability of our categorization scheme was high (kappa > or =0.75, P <0.01) and demonstrated that only 10% of comments were specific enough to qualify as effective feedback. CONCLUSIONS: Feedback prescription pads were a simple method to facilitate feedback. Although students appreciated feedback, most feedback was inadequate. Faculty development programs to enhance student feedback should be a priority of clinical medical education.

Clinical Clerkship↗
PubMed2002

Laparoscopic ventral hernia repair: an initial institutional experience.

BACKGROUND: Ventral and incisional hernias remain a problem for surgeons with reported recurrence rates of 25-50% for open repairs. Laparoscopic approaches offer several theoretical advantages over open repairs. MATERIALS AND METHODS: All patients undergoing a laparoscopic ventral hernia repair from April to December 2000 were prospectively entered in a database. Patients underwent repair with expanded polytetrafluoroethylene dual mesh. Full-thickness abdominal wall nonabsorbable sutures and 5-mm tacks were placed circumferentially. RESULTS: Of 32 patients, 15 underwent incisional repair, 13 had repair of a recurrent incisional hernia, and 4 had repair of a primary abdominal wall defect. Two procedures [2/32; 6.3%] were converted to open, one for loss of abdominal domain and one for neovascularization due to cirrhosis. There were two early recurrences [2/30; 6.7%]. Both of these failures occurred in patients with hernia defects extending to the inguinal ligament, preventing placement of full-thickness abdominal wall sutures inferiorly. Average operating time was 128 +/- 42 min (range 37-225 min). Average length of stay was 1.8 days [range 0-7 days]. There were no transfusion requirements or wound infections. One patient underwent a small bowel resection after completion of repair. One patient required drainage of a seroma 4 weeks after the procedure. CONCLUSIONS: Laparoscopic ventral hernia repair can be safely performed with an acceptable early recurrence rate, operative time, length of stay, and morbidity. Securing the mesh with full-thickness abdominal wall sutures in at least four quadrants remains a key factor in preventing early recurrence.

Adult↗
PubMed2002

CT scan in the management of acute appendicitis.

BACKGROUND: Recent studies demonstrate a 98% accuracy of a CT scan in the diagnosis of acute appendicitis. We aimed to determine the accuracy and clinical value of CT scans in patients suspected of having acute appendicitis. PATIENTS AND MATERIALS: We reviewed outcomes of 125 patients over a 5-month period who had CT scans for the initial diagnosis of acute appendicitis. CT scan interpretations were correlated with surgical and pathologic findings. Follow-up was attempted in all patients who did not undergo appendectomy. RESULTS: CT scans and clinical courses were complete in 110 patients (88%); 14 patients were lost to follow-up and 1 was excluded. One patient had two CT scans. Thus, there were 111 CT scans available for review. Radiologic interpretation of these CT scans yielded 36 positive (33%), 67 negative (60%), and 8 indeterminate (7%), resulting in a sensitivity of 90%, a specificity of 89%, a PPV of 78%, and a NPV of 96%. CONCLUSIONS: CT scan may be useful in the diagnosis of acute appendicitis, but the reported high accuracy rate was not reproduced at our institution. CT scan was not clinically useful in 21% of patients. We conclude that a CT scan may be beneficial in the diagnosis of appendicitis with selected patients who have equivocal findings. Thus, at our institution, the accuracy of a CT scan does not justify its routine use in patients with clinical findings of appendicitis.

Adolescent↗
PubMed2002

Risk factors for conversion of laparoscopic to open cholecystectomy.

BACKGROUND: Laparoscopic cholecystectomy (LC) has become the treatment of choice for symptomatic gallstones; however conversion to open cholecystectomy (OC) remains a possibility. Unfortunately, preoperative factors indicating risk of conversion are unclear. Therefore, we aimed to identify risk factors associated with conversion of LC to OC. PATIENTS AND MATERIALS: Records of 564 patients undergoing LC in 1995 and 1996 were reviewed. Patients were assigned to one of two groups: (1) acute cholecystitis defined by the presence of gallstones, fever, leukocyte count >10(4), and inflammation on ultrasound or histology; (2) chronic cholecystitis that included all other symptomatic patients. Demographics, history, and physical, laboratory, and radiology data, operative note, and the pathology report were reviewed. RESULTS: 161 of 564 patients, had acute and 403 patients had chronic cholecystitis; 16 acute cholecystitis patients (10%) were converted from LC to OC and 17 chronic cholecystitis patients (4%) had LC converted to OC. Patients having open conversion were significantly older, had greater prevalence of cardiovascular disease, and were more likely to be males. LC conversion to OC in acute cholecystitis patients was associated with a greater leukocyte count; in gangrenous cholecystitis patients, 29% had open conversion. CONCLUSIONS: Importantly, these risk factors-older men, presence of cardiovascular disease, male gender, acute cholecystitis, and severe inflammation-are determined preoperatively, permitting the surgeon to better inform patients about the conversion risk from LC to OC. While acute cholecystitis was associated with more than a twofold increased conversion rate, only 10% of these patients could not be completed laparoscopically. Therefore, acute cholecystitis alone should not preclude an attempt at laparoscopic cholecystectomy.

Acute Disease↗
PubMed2002

Patient outcomes for segmental colon resection according to surgeon's training, certification, and experience.

Background. We examined patient outcomes for colon resection to determine if they varied according to surgeon-specific factors including: (1) American Board of Surgery (ABS) certification, (2) colorectal surgery subspecialty certification, (3) site of residency training (university-based vs nonuniversity-based), and (4) years of experience since ABS certification. Methods. We performed a retrospective study of 15,427 admissions of northern Illinois residents who underwent segmental colon resection as their primary operation from 1994 to 1997 at 76 nonfederal Illinois hospitals. There were 514 surgeons. Main outcome measures were inpatient mortality, complications, and hospital length of stay. Regression analyses with mixed effects were used to assess the significance of surgeon-specific variables as a predictor of outcomes after risk adjustment for patient age, gender, emergency admission, surgeon volume, hospital site, colon pathology, and comorbid illnesses. Results. ABS-certification was associated with reduced mortality and morbidity. Increasing years of experience was associated with reduced mortality. Colorectal surgery certification and site of residency training did not significantly affect outcomes. Conclusion. We were able to link patient outcomes with surgeon's training. Certification was an important determinant of patient outcomes for colon resection. Increasing surgeon experience also had a favorable effect on outcomes, suggesting a continued learning curve subsequent to residency. (Surgery 2002;132:663-72).

Adult↗
PubMed2002

Surgical management of obesity.

Bariatric surgery has undergone significant change in the past several decades. There are now several attractive surgical options for the management of clinically severe obesity (body mass index > 40 kg/m2). Gastric restrictive procedures predominate and have been performed with acceptable complication rates. Long-term weight loss is frequently > 50% excess weight with amelioration of obesity-related illnesses. Laparoscopic approaches are increasingly popular. Patient selection and appropriate follow-up remain challenging aspects of patient care. In summary, bariatric surgery is a reliable option for the surgical management of clinically severe obese patients.

Age Factors↗