Validation of a Wearable Sensor Prototype for Measuring Heart Rate to Prescribe Physical Activity: Cross-Sectional Exploratory Study.

Background: Wearable sensors are rapidly evolving, particularly in health care, due to their ability to facilitate continuous or on-demand physiological monitoring.

Objective: This study aimed to design and validate a wearable sensor prototype incorporating photoplethysmography (PPG) and long-range wide area network technology for heart rate (HR) measurement during a functional test.

Methods: We conducted a transversal exploratory study involving 20 healthy participants aged between 20 and 30 years without contraindications for physical exercise.

Exchange rates of second generation Microcuff® pediatric endotracheal tubes in children weighing more than 3 kg : A retrospective audit.

Background: Cuffed endotracheal tubes (cETT) pose the potential advantage of an infrequent need for reintubation in pediatric patients compared to uncuffed tubes. The aim of this study was to investigate tube exchange rates using second generation Microcuff® pediatric endotracheal tubes (PET) with an adapted sizing recommendation in a large single institution cohort of children and to identify potential variables associated with an elevated risk of tube exchange.

Methods: Patient data obtained from the electronic patient data management system of the Department of Anesthesia, University Children's Hospital Zurich, Switzerland, were retrospectively assessed for demographic and anthropometric information, size of the internal tube diameter used for positive pressure ventilation and divergence from the size recommendation chart.

Video Versus Nonvideo in a Rabbit Training Model for Establishing an Emergency Front of Neck Airway in Children: A Prospective Trial.

Objectives: Simulating a realistic "cannot intubate, cannot oxygenate" (CICO) situation to train an "emergency front of neck airway" is difficult. It further remains unclear if provision of regular technical refreshers improves performance in the setting of a real CICO situation. The purpose of this prospective study on an established surgical rabbit cadaver tracheostomy model was to evaluate the benefit of viewing training material shortly before performing "emergency front of neck airway.

Translocated wild birds are predisposed to learn songs of their ancestral population.

Population differences in socially learned mating signals like oscine birdsong are particularly vulnerable to breakdown through dispersal. Despite this challenge, geographic variation in learned signals is ubiquitous. A proposed explanation for this pattern is that birds express predispositions to selectively learn and produce population-typical songs.