European journal of anaesthesiology
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Comparative Study Observational Study
Intra-operative cutaneous temperature monitoring with zero-heat-flux technique (3M SpotOn) in comparison with oesophageal and arterial temperature: A prospective observational study.
Continuous monitoring of core temperature is essential during major surgery as a way of improving patient safety. Oesophageal probes or specific arterial catheters are invasive methods used in this setting. A new noninvasive device based on zero-heat-flux (ZHF) technique (SpotOn) seems promising but has been poorly investigated during rapid core temperature changes (RCTC). ⋯ A SpotOn sensor using the ZHF method seems reliable for core temperature monitoring during abdominal surgery when variations in core temperature are slow rather than rapid.
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Mechanisms of peri-operative ischaemic optic neuropathy remain poorly understood. Both specific pre-operative and intra-operative factors have been examined by retrospective studies, but no animal model currently exists. ⋯ An injury partly resembling human ischaemic optic neuropathy can be produced in rats by combining haemodilution and head-down tilt. Significant functional changes were also present with haemodilution alone. Future studies with this partial optic nerve injury may enable understanding of mechanisms of peri-operative ischaemic optic neuropathy and could help discover preventive or treatment strategies.
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Randomized Controlled Trial
End-tidal carbon dioxide monitoring improves patient safety during propofol-based sedation for breast lumpectomy: A randomised controlled trial.
The use of sedation is becoming more commonplace. Although pulse oximetry is a standard monitoring procedure during sedation, it cannot accurately detect early hypoventilation. End-tidal carbon dioxide (EtCO2) monitoring can be an earlier indicator of airway compromise; however, the existing literature is limited to a few studies with varying outcomes. ⋯ The addition of EtCO2 monitoring to standard monitoring during propofol-based sedation can improve patient safety by decreasing the incidence of CO2 retention, and therefore the risk of hypoxaemia through early recognition of apnoea, and can also shorten recovery time.
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Randomized Controlled Trial Comparative Study
Deep neuromuscular blockade and surgical conditions during laparoscopic ventral hernia repair: A randomised, blinded study.
Laparoscopic ventral hernia repair is a common surgical procedure. However, muscle contractions and general muscle tension may impair the surgical view and cause difficulties suturing the hernial defect. Deep neuromuscular blockade (NMB) paralyses the abdominal wall muscles and may help to create better surgical conditions. ⋯ Deep compared with no NMB did not change the rating score of the surgical view immediately after introduction of trocars during laparoscopic ventral hernia repair, but the surgical condition were improved during suturing of the hernia.
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Letter Comparative Study Clinical Trial Observational Study
Comparison of noninvasive and minimally invasive pulse contour analysis to measure stroke volume during major surgery: A prospective observational study.