RT Journal Article SR Electronic T1 Hypocalcaemic cardiac failure. JF Postgraduate Medical Journal JO Postgrad Med J FD The Fellowship of Postgraduate Medicine SP 633 OP 636 DO 10.1136/pgmj.54.635.633 VO 54 IS 635 A1 D. P. Brenton A1 J. Gonzales A1 A. B. Pollard YR 1978 UL http://pmj.bmj.com/content/54/635/633.abstract AB A 35-year-old patient who presented with recurrent chest infection, pulmonary oedema and cardiac failure was found to be grossly hypocalcaemic owing to previously undiagnosed hypoparathyroidism. The cardiac failure was not easily relieved by digoxin and diuretics but it quickly responded when the plasma calcium was restored to normal with dihydrotachysterol. With dihydrotachysterol as sole treatment for more than 2.5 years he had normal exercise tolerance and no features of cardiac failure.