Rosh K. V. Sethi

Impact of hospital market competition on endovascular aneurysm repair adoption and outcomes

OBJECTIVE The share of total abdominal aortic aneurysm (AAA) repairs performed by endovascular aneurysm repair (EVAR) increased rapidly from 32% in 2001 to 65% in 2006 with considerable variation between states. We hypothesized that hospitals in competitive markets were early EVAR adopters and had improved AAA repair outcomes. METHODS Nationwide Inpatient Sample and linked Hospital Market Structure (HMS) data was queried for patients who underwent repair for nonruptured AAA in 2003. In HMS, the Herfindahl Hirschman Index (HHI, range 0-1) is a validated and widely accepted economic measure of competition. Hospital markets were defined using a variable geographic radius that encompassed 90% of discharged patients. We conducted bivariate and multivariable linear and logistic regression analyses for the dependent variable of EVAR use. A propensity score-adjusted multivariable logistic regression model was used to control for treatment bias in the assessment of competition on AAA repair outcomes. RESULTS A weighted total of 21,600 patients was included in our analyses. Patients at more competitive hospitals (lower HHI) were at increased odds of undergoing EVAR vs open repair (odds ratio, 1.127 per 0.1 decrease in HHI; P < .0127) after adjusting for patient demographics, comorbidities, and hospital level factors (bed size, teaching status, AAA repair volume, and ownership). Competition was not associated with differences in in-hospital mortality or vascular, neurologic, or other minor postoperative complications. CONCLUSIONS Greater hospital competition is significantly associated with increased EVAR adoption at a time when diffusion of this technology passed its tipping point. Hospital competition does not influence post-AAA repair outcomes. These results suggest that adoption of novel vascular technology is not solely driven by clinical indications but may also be influenced by market forces.

Treatment outcomes and prognostic factors, including human papillomavirus, for sinonasal undifferentiated carcinoma: A retrospective review

Sinonasal undifferentiated carcinoma (SNUC) is a high‐grade, aggressive neoplasm. Low incidence and poor outcomes make identification of prognostic factors and treatment standardization difficult. Similarly, little is known regarding the association of human papillomavirus (HPV) with SNUC.

Impact of resident surgeons on procedure length based on common pediatric otolaryngology cases

Surgical education remains an important mission of academic medical centers. Financial pressures may favor improved operating room (OR) efficiency at the expense of teaching in the OR. We aim to evaluate factors, such as resident participation, associated with duration of total OR, as well as procedural time of common pediatric otolaryngologic cases.

Predictors of stethoscope disinfection among pediatric health care providers

BACKGROUND Stethoscopes are contaminated with bacteria, but predictors of stethoscope disinfection frequency are unknown. We sought to describe health care provider stethoscope disinfection attitudes and practices and determine predictors of frequent disinfection. METHODS We used an anonymous online survey of nurses, nurse practitioners, and physicians at a pediatric hospital. We assessed frequency and methods of disinfection, perceptions of contamination, and barriers to disinfection. Multivariate logistic regression models were used to identify independent predictors of disinfecting after every use. RESULTS One thousand four hundred one respondents completed the survey: 76% believed that infection transmission occurs via stethoscopes, but only 24% reported disinfecting after every use. In multivariate analyses, belief that infection transmission occurs via stethoscopes significantly increased the odds of disinfection after every use (odds ratio [OR], 2.06 [95% confidence interval (CI): 1.38-3.06]). The odds of disinfection after every use were significantly decreased in those who perceived the following barriers: lack of time (OR, 0.31 [95% CI: 0.18-0.54]), lack of access to disinfection material (OR, 0.41 [95% CI: 0.29-0.57]), or lack of visual reminders to disinfect (OR, 0.22 [95% CI: 0.14-0.34]). CONCLUSION Only a minority of pediatric health care providers reported disinfecting their stethoscopes after every use. Increasing access to disinfection materials and visual reminders in health care facilities may improve stethoscope disinfection practices.

Epidemiological Survey of Head and Neck Injuries and Trauma in the United States

Objective Head and neck trauma results in a range of injuries, spanning minor lacerations to life-threatening airway compromise. Few studies provide in-depth analysis of injuries to the head and neck (HN). We aim to (1) describe HN injury prevalence in the US and (2) investigate patient disposition and the outcome of mortality. Study Design Case series with chart review. Setting Nationwide emergency department (ED) sample. Methods The 2011 database was queried for encounters with a primary diagnosis of HN injury, as categorized by the Barell Injury Matrix. Weighted estimates for demographics, injury category, and mechanism were extracted. Predictors of mortality and admission were determined by multivariable regression. Results We identified 131 million ED encounters. A weighted total of 5,418,539 visits were related to primary HN injuries. Average age was 30 (SE = 0.4), and 56.8% were male. Sixty-four percent of injuries were attributed to fall or blunt trauma. Open wounds comprised 41.8% of injuries. The most common procedure was laceration repair (70%). The majority of patients (97%) were discharged home. Mortality rate was less than 1%. Predictors of admission and mortality (P < .05) included multiple trauma, vessel trauma, and burns. Other risk factors included foreign-body, older age, and male gender. Conclusions Primary HN injuries commonly present to emergency rooms in the US. The majority of HN injuries are non–life threatening and do not require admission to the hospital or result in death. These data have implications for HN injury surveillance and may be used to risk-stratify patients who present with injuries in the acute care setting.

Comparison of Perioperative Outcomes between the Supraclavicular Artery Island Flap and Fasciocutaneous Free Flap.

Objective Outcomes of the supraclavicular artery island flap (SCAIF) have not been extensively studied in comparison with free tissue transfer (FTT) flaps for head and neck reconstruction. We hypothesize that the pedicled SCAIF has decreased operating room time, length of stay, time to wound healing of recipient site, complications, and hospital charges as compared with FTT. Study Design Case series with chart review. Setting Tertiary care teaching hospital. Subjects and Methods Medical records were reviewed for patients who underwent SCAIF (n = 45) or FTT (n = 28) reconstruction between 2011 and 2013. Results Total operating room time was significantly lower for the SCAIF group vs the FTT group (6.7 vs 8.1 hours, P = .002). Procedural time was 5.7 hours for the SCAIF group, as compared with 7.2 hours for FTT group (P = .0015). Mean area for SCAIF donor site was 63.89 cm2 vs 81.8 cm2 for the radial forearm free flap group (P = .015). There was no significant difference in mean length of stay between SCAIF (8.8 days) and FTT (11 days, P = .12). Mean length of time to wound healing of the recipient site was similar in the SCAIF group vs the FTT group (17.3 vs 22.1 days, P = .071). Ratio of total hospital charges for SCAIF were 32% lower than that of FTT (P = .0001). Conclusion This is among the first studies to compare SCAIF with FTT in a large cohort analysis. We find decreased operating room times for SCAIF vs FTT, with similar length of stay and wound healing. Other outcomes between SCAIF and FTT were also comparable.

Market competition influences renal transplantation risk and outcomes.

Objective:To evaluate the impact of market competition on patient mortality and graft failure after kidney transplantation. Background:Kidneys are initially allocated within 58 donation service areas (DSAs), which have varying numbers of transplant centers. Market competition is generally considered beneficial. Methods:The Scientific Registry of Transplant Recipients database was queried and the Herfindahl-Hirschman index (HHI), a measure of market competition, was calculated for each DSA from 2003 to 2012. Receipt of low-quality kidneys (Kidney Donor Profile Index ≥ 85) was modeled with multivariable logistic regression, and Cox proportional hazards models were created for graft failure and patient mortality. Results:A total of 127,355 adult renal transplants were performed. DSAs were categorized as 7 no (HHI = 1), 17 low (HHI = 0.52–0.97), 17 medium (HHI = 0.33–0.51), or 17 high (HHI = 0.09–0.32) competition. For deceased donor kidney transplantation, increasing market competition was significantly associated with mortality [hazard ratio (HR): 1.11, P = 0.01], graft failure (HR: 1.18, P = 0.0001), and greater use of low-quality kidneys (odds ratio = 1.39, P < 0.0001). This was not true for living donor kidney transplantation (mortality HR: 0.94, P = 0.48; graft failure HR: 0.99, P = 0.89). Competition was associated with longer waitlists (P = 0.04) but not with the number of transplants per capita in a DSA (P = 0.21). Conclusions:Increasing market competition is associated with increased patient mortality and graft failure and the use of riskier kidneys. These results may represent more aggressive transplantation and tolerance of greater risk for patients who otherwise have poor alternatives. Market competition should be better studied to ensure optimal outcomes.

Malignant head and neck paragangliomas: Treatment efficacy and prognostic indicators ☆,☆☆,★

PURPOSE Malignant head and neck paragangliomas (MHNPs) are rare and occur in 6%-19% of all HNPs. We sought to identify predictors of survival and compare efficacy of treatment modalities to inform management of this rare disease. MATERIALS AND METHODS We performed a retrospective cohort study of MHNP cases in the National Cancer Institute Surveillance Epidemiology and End Results database (SEER) from 1973 to 2009. We identified 86 patients with MHNP who had documented regional or distant tumor spread with a median follow-up of 74 months. We used Cox proportional hazard models to assess the significance of demographic factors and treatment on five-year overall survival. RESULTS The most common treatment was surgery alone (36.0 %), followed by surgery with adjuvant radiation (33.7%). Five-year overall survival was 88.1% for surgery alone and 66.5% for adjuvant radiation (p = 0.2251). In univariate analysis, regional (vs. distant) spread (HR 0.23, p < 0.0001), surgery alone (HR 0.29, p < 0.0001) and primary site in the carotid body (HR 0.32, p = 0.006) conferred significant survival advantage whereas age > 50 (HR 4.04, p < 0.0001) worsened survival. Regional (vs. distant) spread (HR 0.42, p = 0.046) and age > 50 (HR 2.98, p = 0.005) remained significant in multivariate analysis. In patients with regional-only disease, five-year overall survival was 95.4% for surgery alone compared to 75.6% for surgery with radiation (p = 0.1055). CONCLUSIONS This is the largest and most contemporary series of MHNP patients. Age and tumor stage are significant factors in predicting survival. Surgical resection significantly improves survival outcomes. From this analysis, the value of adjuvant radiation is not clear.

Transfusion in head and neck free flap patients: practice patterns and a comparative analysis by flap type.

Objective To characterize patterns of utilization and outcomes following transfusion in head and neck patients undergoing free flap reconstruction. Study Design Case series with chart review. Setting Tertiary academic medical center. Subjects and Methods Two hundred eighty-two head and neck patients undergoing free flap reconstruction from 2011 to 2013. Outcome parameters included post-transfusion hematocrit increase, length of stay (LOS), flap survival, and perioperative complications. Results Of all head and neck free flap patients, 48.9% received blood transfusions. Average pretransfusion hametocrit (Hct) was 24.7% ± 0.2% with 2.5 ± 0.1 units of blood transfused. Transfused patients were more likely to have been taken back to the operating room. Rates of transfusion were similar between flap types, although anterolateral thigh (ALT) and fibular free flap (FFF) patients had higher transfusion requirements compared to radial forearm free flap (RFFF) patients. Further, FFF patients trended toward receiving transfusions earlier. Transfusion did not influence flap survival but was associated with wound dehiscence, myocardial infarction, congestive heart failure, respiratory distress, and pneumonia. Subset analyses by flap type revealed that differences were significant among the RFFF and FFF cohorts but not ALT patients. When comparing patients who were transfused for Hct <21 to those transfused for Hct <27, there were no differences in LOS, flap survival, or postsurgical complications. Conclusions Among the different types of flaps, FFF and ALT are associated with higher transfusion requirements. Transfusion in patients undergoing free flap reconstruction does not significantly affect flap survival but was associated with perioperative complications. Our data support consideration of a restrictive transfusion policy in free flap patients.

Epidemiology of otologic diagnoses in United States emergency departments

Otologic complaints may place a significant burden on emergency departments (EDs) in the United States; however, few studies have comprehensively examined this discrete patient population. We aimed to identify utilization of EDs by patients with primary otologic complaints.