Women Reduce the Performance Difference to Men with Increasing Age in Ultra-Marathon Running.

Age and sex are well-known factors influencing ultra-marathon race performance. The fact that women in older age groups are able to achieve a similar performance as men has been documented in swimming. In ultra-marathon running, knowledge is still limited.

An in situ calibration for hearing thresholds.

Quantifying how the sound delivered to the ear canal relates to hearing threshold has historically relied on acoustic calibration in physical assemblies with an input impedance intended to match the human ear (e.g., a Zwislocki coupler).

Clinical applications of photoplethysmography in paediatric intensive care.

Objective: The photoplethysmographic wave is displayed by most pulse oximeters. It may be used as a non-invasive alternative to invasive arterial blood pressure trace analysis for continuous haemodynamic monitoring in selected situations.

Patients And Setting: Four cardiac patients treated in a tertiary neonatal-paediatric intensive care unit.

Congenital prothrombotic disorders in children with peripheral venous and arterial thromboses.

Aims: To evaluate the prevalence of congenital prothrombotic disorders in children with peripheral venous and arterial thromboses.

Methods: Deficiencies in antithrombin (AT), proteins C (PC) and S (PS), and increased lipoprotein (a), and the presence of factor V (FV) G1691A, prothrombin G20210A and methylenetetrahydrofolate reductase (MTHFR) mutations were investigated.

Results: Forty-eight patients (mean age, 3.

Antithrombin activity in children with chylothorax.

Objective: To determine whether increased antithrombin loss is present in children with chylothorax after cardiac surgery.

Methods: Plasma and pleural effusion samples of children with chylous and non-chylous pleural effusion were assayed for antithrombin activity.

Results: Ten children with chylothorax and five children with non-chylous pleural effusion were investigated.