Mediastinal bronchogenic cysts develop from abnormal budding of the primitive tracheobronchial tree. They are usually located in the mediastinum at the level of the tracheal bifurcation. In adults they are frequently asymptomatic and are discovered incidentally on the chest radiograph. As they enlarge they may cause symptoms referable to tracheal, bronchial, or oesophageal compression.' Extrinsic compression of the heart or great vessels appears to be a very rare occurrence.' 3 Case report A 36 year old man was admitted to the cardiac department because of the sudden onset of palpitation and dizziness. His previous clinical history was unremarkable. On admission the electrocardiogram showed atrial fibrillation with a rapid ventricular response of 170 beats/min and a pattern of incomplete right bundle branch block. The patient was
Summary:Methanol intoxication produces a well recognized clinical picture characterized by gastrointestinal, ocular and nervous system symptoms. The effect of poisoning on the cardiovascular system has not been well documented.We report the case of a 55 year old man whose acute methanol intoxication caused severe reversible cardiac failure. This represents the first description of an association between methanol toxicity and acute cardiac dysfunction in man.
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