In an attempt to better understand congenital subaortic stenosis, we reviewed 19 consecutive pediatric patients undergoing surgery for this problem between 1973 and 1984. Preoperative cardiac catheterization demonstrated subvalvular stenosis in all patients and associated anomalies in 11 patients. All patients underwent transaortic resection of the subaortic membrane. Five patients underwent co...

The simplified Bernoulli relationship appears to be quite accurate for predicting gradients across discrete valvular obstructions. Controversy exists about how accurately it predicts the severity of disease in longer segment obstructions. In this study we constructed a pulsatile model of subvalvular pulmonary stensosis in vitro to study nine custom-made subvalvular tunnels 2, 4, and 7 mm in len...

BACKGROUND Laryngotracheal stenosis is difficult to treat and its etiologies are multiple; nowadays, the most common ones are postintubation or posttracheostomy stenoses. OBJECTIVE To provide an algorithm for the management of postintubation laryngotracheal stenoses (PILTS) based on the experience of a tertiary care referral center. METHODS A retrospective study was conducted on all patient...

M-mode echocardiograms performed in 192 infants and children with a clinical diagnosis of isolated patent ductus arteriosus were reviewed. Thirty-six (19 percent) had unequivocal diastolic pulmonary valve flutter. The diagnosis was confirmed in 39/192 patients. Of these, 15 (38 percent) had diastolic flutter of the pulmonary valve. Eight of these 15 patients were full-term infants and children ...

BACKGROUND Each follow-up during the course of tuberculosis treatment currently requires two sputum examinations. However, the incremental yield of the second sputum sample during follow-up of different types of tuberculosis patients has never been determined precisely. OBJECTIVES To assess the incremental yield of the second sputum sample in the follow-up of tuberculosis patients under the R...

To test the hypothesis that the clinical presentation and outcomes are different when pulmonary embolism occurs in younger (age 18 to 40 years) as compared to older (age greater than 40 years) adults, 40 younger patients were compared with older patients. No risk factors could be identified in 28 percent of the younger group. Normal physical examinations were more common (58 vs 28 percent, p = ...

BACKGROUND The prevalence of respiratory symptoms and confirmed tuberculosis (TB) among indigenous groups in Paraguay is unknown. METHODS This study assessed the prevalence of respiratory symptoms, confirmed pulmonary TB, and associated socio-economic factors among indigenous Paraguayan populations. Indigenous persons residing in selected communities were included in the study. A total of 24,...

Andrew T. Lovering, Marlowe W. Eldridge, and Michael K. Stickland University of Oregon, Department of Human Physiology, Eugene, Oregon; Department of Population Health Sciences, Department of Pediatrics, and Department of Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, John Rankin Laboratory of Pulmonary Medicine, Madison, Wisconsin; Division of Pulmonary M...

Lipothymoma is a very rare thymic benign tumor. A 55-year-old male, who underwent thymectomy four years previously, presented with cavitating pulmonary tuberculosis.