Cardiac stabilization during “off-pump” coronary revascularization (OPCAB) has been implicated in causing intraoperative hemodynamic disturbances. Stroke volume and cardiac output reductions may alter the ventilation/perfusion ratio in the lungs and compromise the gas exchange. This study was conducted to determine the impact of heart’s stabilization on arterial blood-gas profile in patients undergoing OPCAB surgery.
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This study was undertaken to examine the impact of the variations of cardiac mechanical work in heart’s respiratory quotient (RQ) and venoarterial carbon dioxide difference (ΔPCO2). In twenty-seven patients undergoing coronary artery bypass grafting under extracorporeal circulation, a coronary sinus line was instituted and it’s correct position was verified by the waveform displayed in the monitor. Immediately after cannulae placement, a haemodynamic profile was obtained and simultaneous arterial and coronary sinus (a & cs) sampling for blood gas analysis was done in an ABL 720 (Radiometer Copenhagen) analyzer.
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Atropine has been used in the past as a premedication drug to decrease the sialorrhea of the second stage of anaesthesia and prevent bradycardia caused by the administration of succinylcholine, opiods or volatile anaesthetics. The purpose of this study is the investigation of the haemodynamic fluctuations during induction of anaesthesia and intubation of the trachea, in children and adults either premedicated or not with atropine.
Continue readingPostoperative vomiting (PV) is a complication of surgery under general mainly anaesthesia. Nowadays about 1 in 3 surgical patients complain of PV. The aetiology of PV is multimodal and so must be the management. There are simple methods to predict the patients who will vomit postoperatively and these patients must be managed with special measures, preferably before PV will be established. Aetiology, prediction and management of high risk for PV patients are analyzed and discussed.
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