Article Type
Original Study
Abstract
Introduction : Weaning trials are performed to assess the readiness of mechanically ventilated patients to sustain spontaneous ventilation. Spontaneous breathing increases basal metabolism and weaning increases cardiopulmonary demand. The most critical time for patients with chronic obstructive pulmonary disease (COPD) mechanically ventilated for acute respiratory failure is the weaning period . Myocardial ischemia is potentially the most important cause of reduced contractility during weaning. This myocardia! ischemia might occur as a consequence either of a reduction in myocardial oxygen supply or of an increase in myocardial oxygen demand or both. A reduced myocardial oxygen supply may result from weaning induced hypoxaemia and tachycardia. Aim of the work : The aim of this work was to monitor the cardiac changes during weaning of COPD patients by non invasive methods in an attempt to detect occult lethal events. Patients and Methods: This prospective study included 40 male COPD patients mechanically ventilated for acute on top of chronic respiratory failure, with mean age of 61.45±9.17 years. Four modes of weanin were used random-ly:sychronized intermittent mandatory ventilation SIMV) mode (11 patients), pressure support ventilation ( PSV) mode (11 patients), continous positive airway pressure (CPAP) mode
Recommended Citation
Abou-Shehata, Abou-Shehata; S, Tantawy; Elsafty E.E, Eman; M.Kh, EI-Badrawy,; and Emara M.M, Mohamed
(2001)
"CARDIAC CHANGES DURING VEANING OF MECHANICALLY VENTILATED CHRONIC OBSTRUCTIVE PULMONARY DISEASED (COPD) PAT IENTS,"
Mansoura Medical Journal: Vol. 30
:
Iss.
2
, Article 11.
Available at:
https://doi.org/10.21608/mjmu.2001.127039
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This work is licensed under a Creative Commons Attribution 4.0 International License.
