Tracheal occlusion pressure: a simple index to monitor respiratory muscle fatigue during acute respiratory failure in patients with chronic obstructive pulmonary disease.

Study Objective: To assess respiratory muscle fatigue in acute respiratory failure in patients with chronic obstructive pulmonary disease and evaluate its influence on weaning patients from mechanical ventilation.

Design And Patients: We studied the time course of tracheal occlusion pressure (P0.1) and high-to-low ratio of the diaphragmatic electromyogram in 16 patients in acute respiratory failure with chronic obstructive pulmonary disease.

[Resectable bronchial cancer. Contribution of computed x-ray tomography in the evaluation of loco-regional extension].

A prospective study of 107 patients was performed for assessing the CT contribution in preoperative staging of lung carcinoma. Thoracotomy was performed in all patients. The results demonstrated that CT is useful in all cases when surgery is indicated.

[Evaluation of the efficacy of the surgical treatment of panlobular emphysema].

26 patients presenting with panlobular emphysema between 1978 and 1984 were submitted to a thoracotomy for surgical resection of their bullae. Pre-operative and post-operative evaluations of the following were made: The level of dyspnoea in 5 grades. The FEV1 (VEMS) the forced vital capacity (CVF) the functional residual capacity (CRF) measured plethysmographically, the residual volume (VR), the total lung capacity (CPT).

Effect of hypophosphatemia on diaphragmatic contractility in patients with acute respiratory failure.

We studied the effects of hypophosphatemia on diaphragmatic function in eight patients with acute respiratory failure who were artificially ventilated. Their mean serum phosphorus level was 0.55 +/- 0.

[Function of the respiratory muscles in acute cardiac decompensation].

In anesthetized dogs the performance of the respiratory muscles during cardiogenic shock and their influence on its outcome was studied. Shock was induced by cardiac tamponade. Cardiac output during shock amounted to 25-35% of control and was kept constant.