Peak Oxygen Consumption (V̇O 2peak ) Recovery Delay in a Pediatric Fontan Population.

Purpose: The purpose of this study is to identify predictors and correlates of VO2RD in youth with Fontan.

Methods: Cardiopulmonary exercise test data was used from a single center, cross-sectional study of children and adolescents (age, 8-21 yr) with Fontan physiology. The VO2RD was determined using time (s) to <90% of V̇O 2peak and categorized as "low" (≤10 s) or "high" (≥10 s).

Moderators of peak respiratory exchange ratio during exercise testing in children and adolescents with Fontan physiology.

Objectives: Many patients with Fontan physiology are unable to achieve the minimum criteria for peak effort during cardiopulmonary exercise testing. The purpose of this study is to determine the influence of physical activity and other clinical predictors related to achieving peak exercise criteria, signified by respiratory exchange ratio ≥ 1.1 in youth with Fontan physiology.

Practices and Procedures in Clinical Pediatric Exercise Laboratories in North America.

Unlabelled: Interinstitutional differences in clinical pediatric exercise laboratory (CPEL) practices may affect patient care and efficacy of multicenter research.

Purpose: To describe current practices/procedures in CPELs and explore differences in CPELs employing exercise physiologists to those that do not.

Methods: A 40-item survey was distributed to CPELs in North America focusing on (1) staffing; (2) exercise stress testing (EST) volumes, reporting, and interpretation; and (3) EST procedures/protocols.

Heart Rate Recovery Following Exercise Testing in Pediatric Patients with Acyanotic Repaired Congenital Heart Disease.

Attenuated heart rate recovery (HRR) following peak exercise has been shown to be a predictor of mortality in populations of adults with Fontan palliation, coronary artery disease, heart failure, and heart transplantation. However, few have studied HRR in children and adolescents with congenital heart disease (CHD). This case-control study compared HRR patterns from exercise stress testing in children and adolescents with and without repaired acyanotic CHD (raCHD).

Physical Activity Patterns in Children and Adolescents With Heart Disease.

Purpose: To quantify the differences in daily physical activity (PA) patterns, intensity-specific volumes, and PA bouts in youth with and without heart disease (HD).

Methods: Seven-day PA was measured on children/adolescents with HD (n = 34; median age 12.4 y; 61.

Determination of retinal and vitreous temperature in vitrectomy.

Purpose/background: To maximize recovery after neurologic injury, physicians use therapeutic hypothermia of 90°F to 93°F (32.2-33.9°C).

The landers trunkless temporary keratoprosthesis.

Objective: To demonstrate the watertight seal created by the new wide-angle Landers trunkless temporary keratoprosthesis (T-TKP).

Methods: In 20 enucleated, porcine eyes, a 7.5-mm trephination was made, followed by capsulorrhexis and lensectomy.

Maintaining a watertight globe while operating with a temporary keratoprosthesis.

Purpose: To demonstrate that the Landers wide-field temporary keratoprosthesis (TKP) creates a watertight seal between the tightly opposing surfaces of the TKP flange and the anterior corneal surface.

Methods: In 25 and 20 enucleated, porcine eyes, a 7.5-mm and 8.