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  • Title: [Pulmonary thromboembolism. A clinical case with unusual presentation].
    Author: Saviotti M, Piccone U, Pala M, Potenza S.
    Journal: Minerva Cardioangiol; 1995; 43(11-12):493-9. PubMed ID: 8710139.
    Abstract:
    The authors describe a rare case of pulmonary thromboembolism with unusual clinical findings and emphasized the large difficulty encountered in formuling a correct diagnosis in a reasonable time. A man, 60 years old, was admitted to a Medical Division of our hospital for the appearance of chest pain and epigastric pain during effort in the last year. He smoked 20 cigarettes a day and drank wine (1 or 2 litres a day). He was affected by hypercholesterolemia and in the past reported relapsed thrombophlebitis in the left leg. Four years before admission to our hospital he underwent large and small left saphenectomy. He had no cardiac events in the past. After a non significant exercise stress test the patient was treated with nitrates and asa and was discharged from the hospital. At home the symptoms increased and after 8 months the patient was admitted again to the Cardiologic Division of the hospital. At admission he reported dyspnea and chest pain at rest, not only during effort and the ECG showed negative T waves in anterior and inferior leads. Intravenous heparine, nitrates and calcium antagonists stabilized the clinical picture. The following examinations revealed: reduction of the T wave negativity at the ECG registered during chest pain; mild enlargement of the heart at the chest roentgenogram; normal value of the left ventricle and apical and midseptal by ipokinesia at the transthoracic echocardiogram; normal coronary artery at the coronary arteriography. "Vasospastic angina" was diagnosed and the patient was discharged after 20 days, asymptomatic. After 15 days he returned to the hospital again for chest pain, dyspnea, hypotension and syncope despite therapy. At physical examination he showed a painful left tibio-tarsal tumefaction, an increased and splitting second heart sound in the pulmonary area and a systolic murmur in the third and fourth left interspace. The ECG showed a severe anterior ischemia, while a new transthoracic echocardiogram revealed a considerable dilatation of the right atrium, right ventricle and the main pulmonary artery with severe tricuspid regurgitation and pulmonary hypertension (mean PAP about 50 mmHg). The following pulmonary perfusion scintigraphy confirmed the diagnosis of pulmonary embolism and the selective right and left pulmonary arteriography exhibited multiple thrombi and large intravascular filling defects. The right heart catheterization confirmed a chronic precapillary pulmonary hypertension (mean PAP = 55 mmHg). About 24 hours after these examinations the patient died because of a cardiac arrest with electromechanical dissociation. Pulmonary thromboembolism is a potentially fatal disease characterized by a largely variable clinical presentation. Frequently pulmonary embolism diagnosis is difficult especially when clinical findings are unusual. In the case observed the "typical" chest and epigastric pains associated with the electrocardiographic findings directed diagnosis towards myocardial ischemia. Also after the coronary arteriography that showed normal coronary artery, the erroneous diagnosis persisted. Pulmonary embolism was correctly diagnosed too late to begin an effective therapy. These unusual clinical findings and diagnostic mistakes are stressed and critically reviewed in the article.
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