INTRODUCTION The study sought to assess the feasibility and accuracy of measuring mixed venous oxygen saturation (SvO2) through the left main bronchus (SpO2(trachea)) METHODS Twenty hybrid pigs of each sex were studied. After anesthesia, a Robertshaw double-lumen tracheal tube with a single-use pediatric pulse oximeter attached to the left lateral surface was introduced toward the left main b...

STUDY OBJECTIVE Desaturation during intubation has been associated with serious complications, including dysrhythmias, hemodynamic decompensation, hypoxic brain injury, and cardiac arrest. We seek to determine the incidence and duration of oxygen desaturation during emergency department (ED) rapid sequence intubation. METHODS This study included adult rapid sequence intubation cases conducted...

BACKGROUND Transport of mechanically ventilated patients in a combat zone presents challenges including conservation of resources. In the battlefield setting, the provision of adequate oxygen supplies remains a significant issue. Autonomous control of oxygen concentration may allow a reduction in mission load. METHODS Trauma patients requiring ventilation and inspired oxygen concentration (FI...

background  apnea is one of the most common problems in preterm neonates. this study aimed to evaluate the effectiveness of aromatherapy on the reduction of apnea, bradycardia, and pulse oximetry (spo2) in premature infants. materials and methods in a clinical trial study, 60 preterm neonates randomly divided in two groups and exposed to aromatherapy with rosa damascenes distillate or distilled...

This paper presents a new approach for evaluating predictions of oxygen saturation levels in blood ( SpO2). A performance metric based on a threshold is proposed to evaluate  SpO2 predictions based on whether or not they are able to capture critical desaturations in the  SpO2 time series of patients. We use linear auto-regressive models built using historical  SpO2 data to predict critical desa...

This issue of RESPIRATORY CARE contains 2 papers of interest that deal with long-term oxygen therapy (LTOT). In the first, Martí et al investigated the efficacy of 2 oxygen-conserving devices in correcting exercise-induced hypoxemia in subjects with either COPD or interstitial lung disease (ILD). Of the 59 subjects who completed the study, 28 were diagnosed with COPD and 31 were diagnosed with ...

OBJECTIVE To assess the effect of acetazolamide (Az) on exercise performance during early acclimatization to altitude. METHODS Az (250 mg twice daily) or placebo was administered for 3 days in a double-blind, randomized manner followed by a rapid ascent to 3459 m in the Italian Alps. Twenty healthy adults (age range, 18-67 years) were tested at 60% of sea-level peak power output for 15 minute...

PURPOSE Pulmonary hypertension and exercise-induced oxygen desaturation (EID) influence acute exacerbation of COPD. Computed tomography (CT)-detected pulmonary artery (PA) enlargement is independently associated with acute COPD exacerbations. Associations between PA to aorta (PA:A) ratio and EID in patients with COPD have not been reported. We hypothesized that the PA:A ratio correlated with EI...

Opioids are respiratory depressants and heroin/opioid overdose is a major contributor to the excess mortality of heroin addicts. The individual and situational variability of respiratory depression caused by intravenous heroin is poorly understood. This study used advanced respiratory monitoring to follow the time course and severity of acute opioid-induced respiratory depression. 10 patients (...