Cooper, ATempe, D KTomar, A SKhanna, S KGupta, B KJoseph, N GBhise, MDoda, M1992-05-012009-05-271992-05-012009-05-271992-05-01Cooper A, Tempe DK, Tomar AS, Khanna SK, Gupta BK, Joseph NG, Bhise M, Doda M. Mechanical ventilation after open heart surgery. Indian Heart Journal. 1992 May-Jun; 44(3): 167-71http://imsear.searo.who.int/handle/123456789/5673One hundred adult patients, undergoing elective open heart surgery over a period of 4 months, were studied to assess the practice of ventilation in the post operative period. The anaesthetic technique employed used moderate doses of morphine, supplemented with halothane and a muscle relaxant. The decision to extubate was based on clinical assessment, and satisfactory blood gases following a 45 minute T-piece trial. The patients were ventilated for an average duration of 8 hours and 2 minutes and 59 out of 100 patients were extubated within 8 hours. Patients undergoing coronary artery bypass graft were ventilated for significantly longer durations (10 hours 28 minutes) (p < 0.05) and had significantly lower arterial oxygen tension (p < 0.01) 30 minutes after extubation, as compared with those undergoing valvular surgery. Also patients whose bypass time exceeded 2 hours had significantly longer extubation times (p < 0.05) as compared with those who had a bypass time less than 1 hour. T piece trial was found to be a satisfactory method of weaning in all the patients.engAdultAortic Valve --surgeryCoronary Artery BypassCoronary Disease --surgeryFemaleHeart Valve Diseases --surgeryHeart Valve ProsthesisHemodynamics --physiologyHumansIntermittent Positive-Pressure VentilationMaleMiddle AgedMitral Valve --surgeryPostoperative CareJournal Article