The relationship between polycythaemia, P50 and SaCO (saturation in carboxyhaemoglobin) has been studied in 50 patients who were hypoxaemic due to chronic respiratory insufficiency. These patients were divided into two groups according to their haemoglobin concentration and haematocrit: 21 polycythaemic patients with haemoglobin greater than or equal to 16 g/dl and haematocrit greater than or e...

OBJECTIVE To evaluate the structure and processes of care of neonatal intensive care units (NICU) providing health care to neonates with respiratory insufficiency, and financed by Seguro Popular. MATERIALS AND METHODS A cross-sectional design was used; 21 NICU were included. Information was collected from four sources: Seguro Popular database, self-applicable interviews to medical staff, stru...

A prospective study among adults hospitalized for polymerase chain reaction-confirmed respiratory syncytial virus infections (n = 123) showed frequent occurrence of lower respiratory-tract complications causing respiratory insufficiency (52.8%), requirement for assisted ventilation (16.3%), and intensive care unit admission/death (12.2%). High viral RNA concentration was detected at time of hos...

BACKGROUND A relationship between low levels of serum vitamin D and respiratory infections has been established. No study has examined the frequency and clinical relevance of vitamin D deficiency in patients with primary ciliary dyskinesia (PCD). METHODS Vitamin D levels were measured in 22 PCD patients (7 females, 10.5 years, range, 2-34 years). In PCD, pulmonary function tests (PFTs), sputu...