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  • Title: [Amiodarone: a new etiology of diffuse interstitial pneumopathy? Apropos of 2 personal cases and 10 cases from the literature].
    Author: Vergnon JM, Wiesendanger T, Bellemin JP, Brune J.
    Journal: Rev Mal Respir; 1984; 1(1):43-50. PubMed ID: 6463349.
    Abstract:
    Diffuse Interstitial Pneumonia (PID) is probably, although rarely, a complication of Amiodarone therapy. We describe two new cases and review 19 from the recent literature. The first patient was a man treated solely with Amiodarone for three years (total dose 185 g). He presented clinically with a picture of PID with slight dyspnoea, weight loss of 4 kilos and a dry cough. There were pulmonary crackles on auscultation, diffuse reticulo-nodular shadows radiographically and compatible pulmonary function tests. Broncho-alveolar lavage (LBA) was lymphocytic (30%). Stopping Amiodarone without resorting to steroids led to the disappearance of the clinical signs within 15 days and the return to normal of the LBA and pulmonary radiograph within six months though the pulmonary function was unchanged. The second case was a 78 year old man treatment with Amiodarone for six months (total dose 20 g). He presents acutely with grade IV dyspnoea and low grade fever. There were pulmonary crackles on auscultation and a bilateral pulmonary infiltrate on the chest radiograph. The pulmonary function tests were compatible with PID showing a restrictive ventilatory defect, a reduced Carbon Monoxide transfer (single breath) and hypoxia. The diagnosis was confirmed by a transbronchial biopsy showing a parieto-alveolar infiltration with increased cellularity and collagen formation. The LBA was predominantly polymorphonuclear. Stopping the Amiodarone associated with steroid treatment produced a normal chest radiograph within six weeks, whilst moderate dyspnoea and less severe restrictive ventilatory defects persisted. The clinical, radiological, functional and histological features of our patients were comparable to those 19 cases reported in the literature.(ABSTRACT TRUNCATED AT 250 WORDS)
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