BACKGROUND Pulse oxygen saturation (SpO2) is an important parameter for healthcare, and wearable sensors and systems for SpO2 monitoring have become increasingly popular. The aim of this paper is to develop a novel SpO2 monitoring system, which detects photoplethysmographic (PPG) signals at hypothenar with a reflection-mode sensor embedded into a glove. METHODS A special photo-detector sectio...

BACKGROUND The ability to objectively differentiate exacerbations of chronic obstructive pulmonary disease (COPD) from day-to-day symptom variations would be an important development in clinical practice and research. We assessed the ability of domiciliary pulse oximetry to achieve this. METHODS 40 patients with moderate-severe COPD collected daily data on changes in symptoms, heart-rate (HR)...

We have assessed the influence of different surgical procedures on the incidence, severity and duration of early postoperative hypoxaemia in 312 healthy infants and children undergoing elective palatoplasty. Group 1 patients underwent von Langenbeck palatoplasty (n = 149), group 2 patients underwent push-back palatoplasty (n = 124) and group 3 patients underwent combined push-back palatoplasty ...

We studied prospectively the effects of the technique of tracheal extubation on arterial haemoglobin oxygen saturation (SpO2) in 120 ASA I-III children, mean age 5.3 (range 0.25-16.9) yr. At completion of surgery, tracheal extubation was performed when spontaneous ventilation had resumed, children were fully awake and SpO2 was 99-100%. Children were allocated randomly to receive a single lung i...

OBJECTIVES In this study, we performed a systematic review and meta-analysis of oral bosentan in adult congenital heart disease associated pulmonary arterial hypertension (CHD-PAH) to evaluate its safety and tolerability. MATERIALS AND METHODS Online electronic database including PubMed, EMBASE and Springer were searched from October 2006 to October 2013 to collect the clinical studies or coh...

Selecting the appropriate anesthetic protocol for the individual animal is an essential part of laboratory animal experimentation. The present study compared the characteristics of four anesthetic protocols in mice, focusing on the vital signs. Thirty-two male ddY mice were divided into four groups and administered anesthesia as follows: pentobarbital sodium monoanaesthesia; ketamine and xylazi...

Traffic accidents on the highway are common. One of causes is fatigue factor driver so that his driving concentration will decrease. The condition in occurs due to decreased levels oxygen blood (SpO2). This application monitor driver's level done by installing a heart rate sensor and saturation (SpO2) wrist. measurement results displayed an OLED screen contains rate, fatigue. If at high then th...

During breath holding, correlations have been demonstrated between the rate of fall of arterial oxyhemoglobin saturation (dSaO2/dt) and the following: thoracic gas volume at apnea onset, resting oxygen consumption, preapneic arterial oxyhemoglobin saturation (SaO2) and obesity. A key factor influencing dSaO2/dt is mixed venous oxyhemoglobin saturation (SvO2) as recently demonstrated in an anima...