Mayra Contreras

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Nontuberculous mycobacterial infections (NTM) are being increasingly recognized as a cause of chronic pulmonary disease. We recently reviewed the clinical, radiologic, and bacteriologic presentation of 89 adult patients ill enough to have been hospitalized between 1981 and 1985 with the diagnosis of NTM. Preexisting lung disease was present in 82% and(More)
The efficacy of negative pressure ventilation (NPV) in alleviating sleep-induced reductions in alveolar ventilation and in producing long-term clinical benefits was studied in 5 patients (54 +/- 8 yr of age; mean +/- SD) with chronic respiratory failure secondary to restrictive ventilatory impairment (VC, 40 +/- 14% predicted; TLC, 72 +/- 18% predicted;(More)
To document the changing clinical spectrum of tuberculosis among inpatients, 498 consecutive admissions to the tuberculosis unit of West Park Hospital, Toronto between January 1977 and March 1980 were reviewed. The results were compared with those of a study at this hospital two decades earlier. The recent patients were older, had a shorter stay in(More)
The present study was undertaken to evaluate the effectiveness of acute ventilation by rocking bed (RB) and by negative-pressure ventilator (NPV) on arterial oxygenation and carbon dioxide tension in seven patients in whom respiratory failure (PaCO2 [+/- SD], 64 +/- 4 mm Hg; PaO2, 54 +/- 10 mm Hg) was consequent on nonobstructive ventilatory impairment. The(More)
In the present study, we have undertaken a detailed analysis of the respiratory physiologic correlates of SaO2 during mild constant-load exercise in 38 patients with severe but stable COPD. Several respiratory physiologic variables that would be expected to influence exercise SaO2 were entered into a stepwise multiple linear regression analysis with mean(More)
Our aim was to determine the prevalence of colorectal and anal (CRA) symptoms in women with urinary incontinence and pelvic organ prolapse (UI/POP) in a predominantly Latina population. We reviewed charts of women seen in the urogynecology clinic for UI/POP for those who completed the colorectal anal distress inventory-8 (CRADI-8) on their first visit. A(More)
Multi-disciplinary rehabilitation programmes are popular in Europe and North America in the management of patients with chronic respiratory disease. Patients experience an increase in exercise tolerance, a decrease in dyspnoea and spend fewer days in hospital after completing the programme. Criteria for admission often include a well motivated nonsmoking(More)
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