Background: A portable monitor for the automated analysis of episodic nocturnal oxygen saturation or SpO2 (the Remmers Sleep Recorder, RSR) has been proposed for the diagnosis of obstructive sleep apnoeahypopnoea (OSAH). A study was undertaken to compare the diagnostic performance of automated analysis with the manual scoring of polygraphic data by a more comprehensive respiratory monitor (the ...

OBJECTIVE Hypoxaemia is a strong predictor of mortality in children. Early detection of deteriorating condition is vital to timely intervention. We hypothesise that measures of pulse oximetry dynamics may identify children requiring hospitalisation. Our aim was to develop a predictive tool using only objective data derived from pulse oximetry and observed respiratory rate to identify children a...

OBJECTIVE Conduct a cost-effectiveness analysis of FreeO2 technology versus manual oxygen-titration technology for patients with chronic obstructive pulmonary disease (COPD) hospitalised for acute exacerbations. SETTING Tertiary acute care hospital in Quebec, Canada. PARTICIPANTS 47 patients with COPD hospitalised for acute exacerbations. INTERVENTION An automated oxygen-titration and oxy...

Introduction: Fingertip pulse oximeters are commonly used as non-invasive modes of measuring oxygen saturation (SpO2) and heart rate (HR) in critical care units. In these cases, a shorter duration of time required obtaining the measurement and time to stabilization is crucial. Objective: Our aim was to compare two new generation pulse oximeters with respect to latency in the fi rst reading and ...

AIM To identify factors that distinguish duct-dependent congenital heart disease (DDCHD) from non-DDCHD in newborn infants. METHOD A retrospective, cohort study. The Newborn Emergency Transport Service, Victoria (NETS) is a retrieval service for all inter-hospital neonatal transfers, and the Royal Children's Hospital, Melbourne (RCH) is a paediatric cardiac referral centre for the state of Vi...

Validation of pulse oximetry in commercially available normobaric hypoxic chambers (NHC) has not been previously reported. The present study examined the validity of pulse oximetry (SpO2) against direct measurements of arterial oxygen saturation (SaO2) via co-oximetry (AVOXimeter 4000) in 13 young adults age 21.3 +/- 0.6 years. Over a period of 2.5 hrs, the inspired fraction of oxygen inside a ...

We have investigated 296 inpatients in a single-blind observer study to determine the incidence, degree and duration of hypoxaemia during anaesthesia. The clinical recognition of hypoxaemia, period of time until recognition and risk factors were studied. Oxygen saturation (Spo2) was monitored continuously with a pulse oximeter (Ohmeda, model 3700). One or more episodes of mild hypoxaemia (Spo2 ...

Classification of cognitive workload promises immense benefit in diverse areas ranging from driver safety to augmenting human capability through closed loop brain computer interface. The is the most metabolically active organ body and increases its metabolic activity thus oxygen consumption with increasing demand. In this study, we explore feasibility in-ear SpO2 tracking. To end, preform asses...