Assessment of pulmonary functions in chronic renal failure patients with different haemodialysis regimens.

In the present study of pulmonary function tests in chronic renal failure patients and controls (on thrice/week haemodialysis and on daily dialysis), similar to previous workers, a restrictive ventilatory disturbance as evidenced by decreased forced vital capacity (FVC), decreased forced expiratory volume in first second (FEV1) with peaked expiratory flow rate (PEFR) and forced expiratory flow in twenty five to seventy five percent range (FEF25-75%) and fifty percent range (FEF50%) indicative of the small airways disease affection (obstruction). In addition to fewer results concerning obstructive pattern, there was significant negative correlation between B. urea, S. creatinine with (FEV1), (FEF25-75%, 50%), and (PEFR). Even there was fewer results of bronchial hyper-reactivity documented in the study, but the new issue here is the effect of daily dialysis--a new growing haemodialysis modality in many centers in the world--that already established to improve patients' quality of life, many systems and the long-term costs of medications and complications' management. A significant reduction in the restrictive pattern of daily dialysis patients with no obstructive type of pulmonary function tests per se and improvement of B. urea but not S. creatinine.