A 70-year-old patient suffering from multihormonal insufficiency presented
several episodes of polymorphic ventricular tachycardia Torsades de pointes
. A long QT interval was diagnosed which was due to hypoparathyroidism-indu
ced hypocalcaemia refractory to the replacement therapy. Although several a
ntiarrythmic drugs were used, only the administration with magnesium sulfat
e provided electrical stability. The multihormonal deficiency was due to 'e
mpty sella turcica syndrome'. (C) 2000 Elsevier Science Ireland Ltd. All ri
ghts reserved.