Laura M. Ibsen

Submersion and asphyxial injury

Drowning and other asphyxial injuries are important causes of childhood morbidity and mortality. In this review, the epidemiology, pathophysiology, and treatments applied to near-drowning victims are discussed, with an emphasis on the difficulties encountered attempting to predict outcome using current methods.

Computer-assisted learning in critical care: from ENIAC to HAL.

Computers are commonly used to serve many functions in today’s modern intensive care unit. One of the most intriguing and perhaps most challenging applications of computers has been to attempt to improve medical education. With the introduction of the first computer, medical educators began looking for ways to incorporate their use into the modern curriculum. Prior limitations of cost and complexity of computers have consistently decreased since their introduction, making it increasingly feasible to incorporate computers into medical education. Simultaneously, the capabilities and capacities of computers have increased. Combining the computer with other modern digital technology has allowed the development of more intricate and realistic educational tools. The purpose of this article is to briefly describe the history and use of computers in medical education with special reference to critical care medicine. In addition, we will examine the role of computers in teaching and learning and discuss the types of interaction between the computer user and the computer.

Volatile anesthetic rescue therapy in children with acute asthma: innovative but costly or just costly?.

Objectives: To describe volatile anesthesia (VA) use for pediatric asthma, including complications and outcomes. Design: Retrospective cohort study. Setting: Children’s hospitals contributing to the Pediatric Health Information System between 2004–2008. Patients: Children 2–18 years old with a primary diagnosis code for asthma supported with mechanical ventilation. Intervention: Those treated with VA were compared to those not treated with VA or extracorporeal membrane oxygenation. Hospital VA use was grouped as none, <5%, 5–10% and >10% among intubated children. Measurements and Main Results: One thousand five hundred and fifty-eight patients received mechanical ventilation at 40 hospitals for asthma: 47 (3%) received VA treatment at 11 (28%) hospitals. Those receiving a VA were significantly less likely to receive inhaled b-agonists, ipratropium bromide, and heliox, but more likely to receive neuromuscular blocking agents than patients treated without VA. Length of mechanical ventilation, hospital stay (length of stay [LOS]) and charges were significantly greater for those treated with VA. Aspiration was more common but death and air leak did not differ. Patients at hospitals with VA use >10% were significantly less likely to receive inhaled b agonist, ipratropium bromide, methylxanthines, and heliox, but more likely to receive systemic b agonist, neuromuscular blocking agents compared to those treated at hospitals not using VA. LOS, duration of ventilation, and hospital charges were significantly greater for patients treated at centers with high VA use. Conclusions: Mortality does not differ between centers that use VA or not. Patients treated at centers with high VA use had significantly increased hospital charges and increased LOS.

Metrics to assess extracorporeal membrane oxygenation utilization in pediatric cardiac surgery programs

Objectives: Only a small fraction of pediatric cardiac surgical patients are supported with extracorporeal membrane oxygenation following cardiac surgery, but extracorporeal membrane oxygenation use is more common among those undergoing higher complexity surgery. We evaluated extracorporeal membrane oxygenation metrics indexed to annual cardiac surgical volume to better understand extracorporeal membrane oxygenation use among U.S. cardiac surgical programs. Design: Retrospective analysis Setting: Forty-three U.S. Children’s Hospitals in the Pediatric Health Information System that performed cardiac surgery and used extracorporeal membrane oxygenation. Patients: All patients (< 19 yr) undergoing cardiac surgery during January 2003 to July 2014. Interventions: None. Measurements and Main Results: Both extracorporeal membrane oxygenation use and surgical mortality were risk adjusted using Risk Adjustment for Congenital Heart Surgery 1. Extracorporeal membrane oxygenation metrics indexed to annual cardiac surgery cases were calculated for each hospital and the metric values divided into quintiles for comparison across hospitals. Among 131,786 cardiac surgical patients, 3,782 (2.9%) received extracorporeal membrane oxygenation. Median case mix adjusted rate of extracorporeal membrane oxygenation use was 2.8% (interquartile range, 1.6–3.4%). Median pediatric cardiac case mix adjusted surgical mortality was 3.5%. Extracorporeal membrane oxygenation-associated surgical mortality was 1.3% (interquartile range, 0.7–1.6%); without extracorporeal membrane oxygenation, median case mix adjusted surgical mortality would increase from 3.5% to 5.0%. Among patients who died, 36.7% (median) were supported with extracorporeal membrane oxygenation. The median reduction in case mix adjusted surgical mortality from extracorporeal membrane oxygenation surgical survival was 30.1%. The median extracorporeal membrane oxygenation free surgical survival was 95% (interquartile range, 94–96%). Centers with less than 150 annual surgical cases had significantly lower median extracorporeal membrane oxygenation use (0.78%) than centers with greater than 275 cases (≥ 2.8% extracorporeal membrane oxygenation use). Extracorporeal membrane oxygenation use and mortality varied within quintiles and across quintiles of center annual surgical case volume. Conclusions: Risk adjusted extracorporeal membrane oxygenation metrics indexed to annual surgical volume provide potential for benchmarking as well as a greater understanding of extracorporeal membrane oxygenation utilization, efficacy, and impact on cardiac surgery mortality.

Providing adult and pediatric care in the same unit: multiple considerations.

As always in acute and critical care, preparation is fundamental to positive patient and family outcomes. Although integration of diverse age populations may occur rarely in a unit, strategic planning should be in place for such occurrences,with relevant competencies considered, addressed, and evaluated on a continuing basis.

Mobilization Therapy in the Pediatric Intensive Care Unit: A Multidisciplinary Quality Improvement Initiative

Background Mobilization is safe and associated with improved outcomes in critically ill adults, but little is known about mobilization of critically ill children. Objective To implement a standardized mobilization therapy protocol in a pediatric intensive care unit and improve mobilization of patients. Methods A goal‐directed mobilization protocol was instituted as a quality improvement project in a 20‐bed cardiac and medical‐surgical pediatric intensive care unit within an academic tertiary care center. The mobilization goal was based on age and severity of illness. Data on severity of illness, ordered activity limitations, baseline functioning, mobilization level, complications of mobilization, and mobilization barriers were collected. Goal mobilization was defined as a ratio of mobilization level to severity of illness of 1 or greater. Results In 9 months, 567 patient encounters were analyzed, 294 (52%) of which achieved goal mobilization. The mean ratio of mobilization level to severity of illness improved slightly but nonsignificantly. Encounters that met mobilization goals were in younger (P = .04) and more ill (P < .001) patients and were less likely to have barriers (P < .001) than encounters not meeting the goals. Complication rate was 2.5%, with no difference between groups (P = .18). No serious adverse events occurred. Conclusions A multidisciplinary, multiprofessional, goaldirected mobilization protocol achieved goal mobilization in more than 50% of patients in this pediatric intensive care unit. Undermobilized patients were older, less ill, and more likely to have mobilization barriers at the patient and provider level.