Abstract
The patient was 27 year-old female. At 23 year-old, under the diagnosis of endocardial cushion defect (complete form, type III), operation was performed and resulted complete atrioventricular block. So the patient was implanted a permanent pacemaker with myocardial electrodes. At 26 year-old, when the cardiac function of the patient was evaluated to be within NYHA grade II, postoperative cardiac catheterization was performed, and it revealed small residual left to right shunt and mitral regurgitation. Exercise test revealed that cardiac output did not increase properly with usual pacing rate, but it increased easily by increasing the pacing rate. When the patient was made a diagnosis of pregnancy at 27 year-old, the previous pacemaker was removed and a rate programable pacemaker was implanted.
All through the procedure of pregnancy, delivery and puerperium, the patient was controlled well by the rate programable pacemaker.
programable pacemaker implantation has much advantage in such a case of pregnancy, the hemodinamic condition of that is changing for long term.