The “Things We Do for No Reason” (TWDFNR) series reviews practices which have become common parts of hospital care but which may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent “black and white” conclusions or clinical practice standards, but are meant as a starting place for research and active discussions among hospitalists and patients. We invit...

Introduction The Diagnostic Approach to Acute Deep Venous Thrombosis Background Symptoms and Signs Contrast Venography Impedance Plcthysmography Background Physiology and Techniyue Limitations of lmpedancc Plethysmography Early Clinical Trials: Establishing Accuracy in Symptomatic Acute Proximal DVT Management Studies: Early Success and Later Questions Impedance Plethysmography in Asymptomatic ...

introduction: pulmonary embolism (pe) is a common lethal disease that its clinical symptoms may be seen in many other diseases. computed tomography pulmonary angiography (ctpa) is a valuable diagnostic modality for detection of pe. in addition, it can accurately detect the other diseases with clinical symptoms similar to pe. the aim of this study is to evaluate the frequency of pe and nonemboli...

background since tuberculosis (tb) is a major public health problem that is a leading cause of mortality and morbidity among infectious diseases worldwide, early diagnosis and treatment are important to control an effective tuberculosis (tb) and also the increasing number of patients with atypical manifestations of active tb. it suggests more evaluation for active tb in fibrotic lesion in ct sc...

The multiple inert gas elimination technique (MIGET) was first described by Wagner et al in 1974.' It allows quantitation of the ventilationperfusion (VA/Q) distribution and a precise analysis of the intrapulmonary and extrapulmonary factors that govern gas exchange in humans. This review discusses how this technique has facilitated a better understanding of the mechanisms underlying gas exchan...

The first description of the effects of hypoxia on the pulmonary circulation was made by Bradford and Dean in the UK exactly 100 years ago.' However, scientific interest in this field only began with the discovery of hypoxic pulmonary vasoconstriction in the cat by von Euler and Liljestrand2 in 1946, and in man a year later in Andre Coumand's laboratory.3 Despite extensive research in this fiel...

introduction: pulmonary involvement secondary to systemic sclerosis (ssc) is the major cause of morbidity and mortality in ssc patients. we designed this study to determine the correlation of important lung function parameters with lung high resolution ct (hrct) scan findings.materials and methods: thirty–two consecutive diffuse ssc patients with pulmonary fibrosis were enrolled in this cross-s...

Pinerua, R. F. and Hartnett, B. J. S. (1974). Thorax, 29, 599-602. Acute pulmonary reaction to nitrofurantoin. Acute pulmonary reaction to nitrofurantoin is a rare complication of a commonly used drug. This report of such a reaction presents studies of pulmonary function more detailed than are so far available. Studies made nine days after the drug had been withdrawn showed arterial hypoxaemia ...

Pulmonary embolism is considered as a great masquerader due to its frequent nonspecific signs and symptoms. Typically pulmonary embolism is under-diagnosed or over-diagnosed. In this study a patient with pulmonary embolism is reported in which the patient exhibited two unusual manifestations namely; right upper quadrant abdominal pain and ST-T elevation in anterior precordial leads. Due to the ...