Creatine kinase as a biochemical marker in diagnosis of placenta increta and percreta

We describe 1 case of placenta increta and 1 of placenta percreta, both ass ociated with elevated maternal serum creatine kinase concentration. In pati ents with placenta previa and ultrasonographic findings of an abnormally ad herent placenta, an unexplained elevation in maternal serum creatine kinase level should alert the clinician to the possibility of placenta increta or placenta percreta, with an attendant increase in maternal morbidity.