Occult pulmonary embolism: a common occurrence in deep venous thrombosis
- 1 February 1987
- journal article
- research article
- Published by American Roentgen Ray Society in American Journal of Roentgenology
- Vol. 148 (2) , 263-266
- https://doi.org/10.2214/ajr.148.2.263
Abstract
Ventilation-perfusion scans were used in a prospective study to determine the prevalence of occult pulmonary embolus in proven deep venous thrombosis. Fifty-eight patients without symptoms of pulmonary embolism, but with venographically proven deep venous thrombosis, were subjected to chest radiographs, 99mTc macroaggregated-albumin perfusion scans, and 133Xe ventilation scans. Of the 49 patients with deep venous thrombosis proximal to the calf veins, 17 (35%) had high-probability scans. Of all 58 patients, only 12 (21%) had normal scans. When the study population was compared with a group of 430 patients described in reports of pulmonary perfusion in asymptomatic persons, a significantly higher percentage of high-probability scans was found in the study population with deep venous thrombosis. Baseline ventilation-perfusion lung scanning is valuable for patients with proven above-knee deep venous thrombosis.This publication has 9 references indexed in Scilit:
- Percutaneous Kimray-Greenfield filter placement by femoral vein punctureAmerican Journal of Roentgenology, 1985
- Pulmonary Angiography, Ventilation Lung Scanning, and Venography for Clinically Suspected Pulmonary Embolism with Abnormal Perfusion Lung ScanAnnals of Internal Medicine, 1983
- PATTERNS OF PULMONARY PERFUSION SCANS IN NORMAL SUBJECTS .2. THE PREVALENCE OF ABNORMAL SCANS IN YOUNG SMOKERS1982
- Is Embolic Risk Conditioned By Location of Deep Venous Thrombosis?Annals of Internal Medicine, 1981
- PATTERNS OF PULMONARY PERFUSION SCANS IN NORMAL SUBJECTSPublished by Elsevier ,1981
- THE LOW SPECIFICITY OF POSTOPERATIVE PERFUSION LUNG-SCAN DEFECTS1981
- Controversies and Enigmas in Thrombophlebitis and Pulmonary EmbolismAngiology, 1980
- Overdiagnosis and Overtreatment of Pulmonary Embolism: The Emperor May Have No ClothesAnnals of Internal Medicine, 1977
- Mortality in patients treated for pulmonary embolismJAMA, 1976