Echocardiographic Changes in Cases of Intermittent Acute Porphyria.

Intermittent acute porphyria (IAP) is an inborn metabolic disorder of biosynthesis of haeme, characterized by increased excretion of porphyrin or porphyrin precursor in urine and clinically by gastrointestinal, neuro-psychiatric and cardiovascular manifestations. Significant observations were made on echocardiographic examination of 25 IAP patients in our study. Significant decrease in ejection fraction (48.4 +/- 7.9, control group 63.0 +/- 7.5, P < 0.001) and percentage of fractional shortening (23.5% +/- 6.87%, control group = 36.4 +/- 4.26, P