The relationship between physician case volume and in-hospital mortality of critically ill children with a diagnosis of pneumonia: a cross-sectional observational analytical study

Decision to deploy coronary reperfusion is not affected by the volume of ST-segment elevation myocardial infarction patients managed by prehospital emergency medical teams

OBJECTIVE

Mortality in patients with ST-segment elevation myocardial infarction (STEMI) has been associated with the volume of activity of percutaneous coronary intervention (PCI) facilities. This observational study investigated whether the coronary reperfusion-decision rate is associated with the volume of activity in a prehospital emergency setting.

METHODS

Prospectively collected data for the period 2003-2013 were extracted from a regional registry of all STEMI patients handled by eight dispatch centers (SAMUs) in and around Paris [41 mobile ICU (MICUs)]. A possible association between volume of activity (number of STEMIs) and coronary reperfusion-decision rate, and subsidiarily between volume of activity and choice of technique (fibrinolysis vs. primary PCI), were investigated. Explanatory factors (patient age, sex, delay between pain onset and first medical contact, and access to a PCI facility) were analyzed in a multivariate analysis.

RESULTS

Overall, 18 162 patients; male/female 3.5/1; median age 62 (52-72) years were included in the analysis. The median number of STEMIs per MICU was 339 (IQ 220-508) and that of reperfusion-decisions was 94% (91-95). There was no association between the decision rate and the number of STEMIs (P = 0.1). However, the decision rate was associated with age, sex, delay, and access to a PCI facility (P < 0.0001) in a highly significant way. Fibrinolysis was a more frequent option for low-volume (remoter PCI facilities) than high-volume MICUs (30 vs. 16%).

CONCLUSION

The decision of coronary reperfusion in a prehospital emergency setting depended on patient characteristics, delay between pain onset and first medical contact, and access to a PCI facility, but not on volume of activity. Promoting fibrinolysis use in underserved areas might help increase the reperfusion-decision rate.

Effect of Institutional Kidney Transplantation Case-Volume on Post-Transplant Graft Failure: a Retrospective Cohort Study

BACKGROUND

The impact of institutional case volume to graft failure rate after adult kidney transplantation is relatively unclear compared to other solid organ transplantations.

METHODS

A retrospective cohort study of 13,872 adult kidney transplantations in Korea was performed. Institutions were divided into low- (< 24 cases/year), medium- (24-60 cases/year), and high- (> 60 cases/year) volume centers depending on the annual case volume. One-year graft failure rate was defined as the proportion of patients who required dialysis or re-transplantation at one year after transplantation. Postoperative in-hospital mortality and long-term graft survival were also measured.

RESULTS

After adjustment, one year graft failure was higher in low-volume centers significantly (adjusted odds ratio [aOR], 1.50; 95% confidence interval [CI], 1.26-1.78; P < 0.001) and medium-volume centers (aOR, 1.87; 95% CI, 1.57-2.23; P < 0.001) compared to high-volume centers. Low-volume centers had significantly higher mortality (aOR, 1.75; 95% CI, 1.15-2.66; P = 0.01) than that of high-volume centers after adjustment. Long-term graft survival of up to 9 years was superior in high-volume centers compared to low- and medium-volume centers (P < 0.001).

CONCLUSION

Higher-case volume centers were associated with lower one-year graft failure rate, lower in-hospital mortality, and higher long-term graft survival after kidney transplantation.

Do Hospital and Physician Volume Thresholds for the Volume-Outcome Relationship in Heart Failure Exist?

BACKGROUND

Although volume-outcome relationships have been explored for various procedures and interventions, limited information is available concerning the effect of hospital and physician volume on heart failure mortality. Most importantly, little is known about whether there are optimal hospital and physician volume thresholds to reduce heart failure mortality.

OBJECTIVES

We used nationwide population-based data to identify the optimal hospital and physician volume thresholds to achieve optimum mortality and to examine the relative and combined effects of the volume thresholds on heart failure mortality.

METHODS

We analyzed all 20,178 heart failure patients admitted in 2012 through Taiwan's National Health Insurance Research Database. Restricted cubic splines and multilevel logistic regression were used to identify whether there are optimal hospital and physician volume thresholds and to assess the relative and combined relationships of the volume thresholds to 30-day mortality, adjusted for patient, physician, and hospital characteristics.

RESULTS

Hospital and physician volume thresholds of 40 cases and 15 cases a year, respectively, were identified, under which there was an increased risk of 30-day mortality. Patients treated by physicians with previous annual volumes <15 cases had higher 30-day mortality compared with those with previous annual volumes ≥15 cases, and the relationship was stronger in hospitals with previous annual volumes <40 cases.

CONCLUSIONS

This is the first study to identify both the hospital and physician volume thresholds that lead to decreases in heart failure mortality. Identifying the hospital and physician volume thresholds could be applied to quality improvement and physician training.

Parent Perceptions on Transfers to Pediatric Emergency Departments and the Role of Telemedicine

OBJECTIVE

Real-time audiovisual consultation (telemedicine) has been proven feasible and is a promising alternative to interfacility transfer. We sought to describe caregiver perceptions of the decision to transfer his or her child to a pediatric emergency department and the potential use of telemedicine as an alternative to transfer.

METHODS

Semistructured interviews of caregivers of patients transferred to a pediatric emergency department. Purposive sampling was used to recruit caregivers of patients who were transferred from varying distances and different times of the day. Interviews were conducted in person or on the phone by a trained interviewer. Interviews were recorded, transcribed, and analyzed using modified grounded theory.

RESULTS

Twenty-three caregivers were interviewed. Sixteen (70%) were mothers; 57% of patients were transported from hospitals outside of the city limits. Most caregivers reported transfer for a specific resource need, such as a pediatric subspecialist. Generally, caregivers felt that the decision to transfer was made unilaterally by the treating physician, although most reported feeling comfortable with the decision. Almost no one had heard about telemedicine; after hearing a brief description, most were receptive to the idea. Caregivers surmised that telemedicine could reduce the risks and cost associated with transfer. However, many felt telemedicine would not be applicable to their particular situation.

CONCLUSIONS

In this sample, caregivers were comfortable with the decision to transfer their child and identified potential benefits of telemedicine as either an adjunct to or replacement of transfer. As hospitals use advanced technology, providers should consider families' opinions about risks and out-of-pocket costs and tailoring explanations to address individual situations.

Cross-sectional Survey of Canadian Pediatric Critical Care Transport

OBJECTIVES

This study aimed to better understand the unique aspects of pediatric critical care transport programs across Canada by characterizing the current workforce of each transport program.

METHODS

A cross-sectional questionnaire was sent to the 13 medical directors of Canada's pediatric critical care transport teams, and to 2 nonhospital-affiliated transport services. If a children's hospital did not have a dedicated team for pediatric transport, the regional transport team providing this service was identified.

RESULTS

Eight of the 13 pediatric intensive care units surveyed have unit-based pediatric transport teams. The median annual transport volume for the 8 hospital-based teams was 371 (range, 45-2300) with a total of 5686 patients being transported annually. Among patients transported by the 8 teams, 45% (2579 patients) were pediatric patients (older than 28 days and younger than 18 years) and 40% (1022 patients) of the pediatric patients were admitted to the pediatric intensive care units. Eighty-eight percent of the responding teams also transported neonates (older than 28 days), and 38% transported premature infants.A team composition of registered nurse-respiratory therapist-physician was used by 6/13 teams (75%); however, it accounted for only a small proportion of the transports for most of the teams (median, 2%; range, 2%-100%).The average transport time from dispatch (from team home site) to arrival at receiving facility was reported by 6 teams, and has a median of 195 minutes (range, 90-360 minutes). The median distance from home site to the farthest referral site in the catchment area was 700 km (range, 15-2500 km).

CONCLUSIONS

This is the first Canadian nationwide study of pediatric critical care transport programs. It revealed a complexity and variability in transport team demographics, transport volume, team composition, and decision-making process.

Disparities in Adherence to Pediatric Sepsis Guidelines across a Spectrum of Emergency Departments: A Multicenter, Cross-Sectional Observational In Situ Simulation Study

BACKGROUND

Each year in the United States, 72,000 pediatric patients develop septic shock, at a cost of $4.8 billion. Adherence to practice guidelines can significantly reduce mortality; however, few methods to compare performance across a spectrum of emergency departments (EDs) have been described.

OBJECTIVES

We employed standardized, in situ simulations to measure and compare adherence to pediatric sepsis guidelines across a spectrum of EDs. We hypothesized that pediatric EDs (PEDs) would have greater adherence to the guidelines than general EDs (GEDs). We also explored factors associated with improved performance.

METHODS

This multi-center observational study examined in situ teams caring for a simulated infant in septic shock. The primary outcome was overall adherence to the pediatric sepsis guideline as measured by six subcomponent metrics. Characteristics of teams were compared using multivariable logistic regression to describe factors associated with improved performance.

RESULTS

We enrolled 47 interprofessional teams from 24 EDs. Overall, 21/47 teams adhered to all six sepsis metrics (45%). PEDs adhered to all six metrics more than GEDs (93% vs. 22%; difference 71%, 95% confidence interval [CI] 43-84). Adherent teams had significantly higher Emergency Medical Services for Children readiness scores, MD composition of physicians to total team members, teamwork scores, provider perceptions of pediatric preparedness, and provider perceptions of sepsis preparedness. In a multivariable regression model, only greater composite team experience had greater adjusted odds of achieving an adherent sepsis score (adjusted odds ratio 1.38, 95% CI 1.01-1.88).

CONCLUSIONS

Using standardized in situ scenarios, we revealed high variability in adherence to the pediatric sepsis guideline across a spectrum of EDs. PEDs demonstrated greater adherence to the guideline than GEDs; however, in adjusted analysis, only composite team experience level of the providers was associated with improved guideline adherence.