Tuberc Respir Dis > Volume 44(4); 1997 > Article
Tuberculosis and Respiratory Diseases 1997;44(4):889-898.
DOI: https://doi.org/10.4046/trd.1997.44.4.889    Published online August 1, 1997.
Clinical Study of the Patients, in Whom Pulmonary Embolism was Suspected by Lung Perfusion Scan.
Gwi Lae Lee, Jae Yeol Kim, Jae Suk Park, Chul Gyu Yoo, Young Whan Kim, Young Soo Shim, Sung Koo Han
Abstract
Pulmonary Embolism can develop in variable conditions, and presents with nonspecific symptoms and signs. If diagnosis is delayed, it can be resulted in catastrophic results. Therefore, early diagnosis and adequate treatment is crucial in Pulmonary Embolism. Lung Perfusion Scan is useful screening test. Negative result can exclude pulmonary embolism, But, perfusion defects don't always mean pulmonary embolism. To find the better methods of interpretation of king perfusion scan and To evaluate the clinical course and outcomes of the patients, in whom pulmonary embolism was suspected by lung perfusion scan, we reviewed the clinical records of 49 cases suspected by lung perfusion scan at Seoul National University Hospital during the period of January, 1995 to July, 1996. The results are as follows. First impression of cases in which PE was present at time of admission were pulmonary embolism (63%), heart diseases (26%), and pneumonia (11%) in orders. Underlying diseases of cases in which PE developed during admission were malignancy (36.5%), 10-I (22.7%), sepsis (13.7%), and SLE (9.1%) in orders. The predisposing factors were operation (20%), cancer (16%), immobility (16%), connective tissue disease (16%), heart dis. (10%), old age (10%), and preg/pelvic dis. (8%) The results of lung perfusion scan were HPPE 40cases(26.8%), IPPE 21 cases(14.1%), LPPE 88 cases(59.l %) and cases(%) of treatment in these cases were HPPE 34 cases(85%), IPPE 9 cases(42,9%), IPPE 0 case(0.0%). Treatments were heparin and warfarin (69.5%), heparin alone (8.2%), warfarin alone (2.0%), embolectomy(4.1%), thrombolytics (20%), IVC filter (2.0%), and no treatment (12.2%) In 34 cases (694%), follow up could be done, and 5 cases were recurred (10.2%). The causes of recurrence was incomplete anticoagulant therapy (3 cases) 2rnd recurrence of predisposing factor (2 cases). Expired case due to pulmonary embolism was one who was expired just before trial of thrombolytie therapy. CONCLUSION: Efforts should be made to shorten the interval from onset of Sx to Dx, ie, high index of suspision.
Key Words: Pulmonary embolism, Clinical study, Lung perfusion scan


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