A 53-year-old man presented with unstable angina due to the severe stenosis of the left anterior descending coronary artery and obtuse marginalis, although the right coronary artery was normal. Laboratory findings, including a complete blood count, erythrocyte sedimentation rate, and C reactive protein, were normal. Chest X-ray revealed no abnormal findings, and there was no valvular abnormality on preoperative echocardiography. The patient had no co-morbid disorders, but his left ventricular ejection fraction was reduced (40–45%).\nThe intraoperative course was uneventful. There were no findings of pericarditis. On physical examination, there was no respiratory distress, blood pressure was 130/80 mm Hg, heart rate was 80 beats per minute, respiratory rate was 23 per minute, the neck veins were not distended, and there was no ankle edema. Cardiovascular system examination showed regular first and second heart sounds with no gallop or murmur. The electrocardiogram (ECG) demonstrated a Q wave in the precordial leads. For temporary coronary artery occlusion, 4/0 Viline sutures and a Bulldog Clamp were used, and warm blood was employed to de air the graft. Temporary coronary artery occlusion was not prolonged, and the electrocardiogram and hemodynamic variables and objective data showed no signs of ischemia or contractile dysfunction. The operation was uneventful. No intra-coronary shunt was utilized.\nThe patient left the operating room without any inotropic support. Six hours later, however, he developed low cardiac output. At exploration, cardiac tamponade was excluded and flowmetry showed that the graft had adequate function. There were no findings as regards pericarditis, and the patient’s postoperative erythrocyte sedimentation rate, C-reactive protein, and cardiac enzymes were normal. A high dose of adrenalin and dobutamine was administered, and an intra-aortic balloon pump was used.\nIntraoperative transesophageal echocardiography demonstrated a depression in the left ventricular function due to an akinetic lateral left ventricular wall in the region of the obtuse marginalis. After hemodynamic stabilization, the patient left the Intensive Care Unit without an intra-aortic balloon pump and inotropic support. On the fifth postoperative day, a coronary angiogram demonstrated patent grafts and correct anastomotic sites ( & ). On the seventh postoperative day, the akinetic lateral wall of the left ventricle changed to dyskinesia. Finally, after hospital discharge on the thirtieth postoperative day, an echocardiogram showed a normal left ventricular function without regional wall motion abnormalities.
A 45-year-old woman was admitted to our heart center with severe mitral stenosis and left atrial clot. The patient gave a history of shortness of breath on minimal exertion for one week and no cerebral symptoms, including headache, dizziness, transient ischemic attacks, or strokes. She was found to be fully conscious, alert, and oriented with stable vital signs. Blood pressure was 110/80 mmHg, and diastolic murmur was audible over the mitral area. Physical examination revealed intact cranial nerves, motor power, and sensation. There was no evidence of vasculitis such as Osler’s nodes, Jane way pad, palmer erythema, or cyanosis of fingers. Blood investigation showed an erythrocyte sedimentation rate (ESR) of 4 mm with no leukocytosis and a white blood cell (WBC) of 10.000 mm3. The electrolytes and kidney and liver function were within normal limits. Chest X-ray showed prominence of the left cardiac border due to left atrial enlargement. Electrocardiography was indicative of no change, but two–dimensional echocardiography revealed a large bulky non-mobile thrombosis in the left atrium with severe mitral stenosis. The mitral valve area was 0.6 cm2, and the other cardiac valves were normal. Pre- and postoperative laboratory measurements included negative antinuclear antibodies and rheumatoid factor, and elevation of C4 & C3 components of complement; in addition, HBS Antigen (especially in polyarteritis nodosa) was negative.\nThe patient underwent open heart surgery via the ascending aorta and bicaval cannulation. The aorta was cross-clamped, and the heart was arrested with cold cardioplegia by achieving systemic hypothermia at 30 °C on the cardiopulmonary bypass. Intraoperatively, the stenotic mitral valve was found to have a bulky clot attached to the valve and wall of the left atrium. The diseased mitral valve and the clot were excised, and the left atrial cavity was irrigated with copious amounts of normal saline and a valve was thereafter implanted. The left ventricle was then filled completely with saline and blood and fully deaired. The patient was weaned successfully off cardiopulmonary bypass with inotropic support and transferred to the intensive care unit. After 6 hours, blood pressure dropped and central venous pressure elevated and the extremity became cool and cyanotic. Inotropic support was commenced with dobutamine and adrenaline (2 and 1 mic/kg/min, respectively). On the third postoperative day, the inotropic drugs were tapered and blood pressure stabilized. By this point, however, the cyanosis had changed to gangrene and on the 12th postoperative day the acral part of the extremity was amputated and the specimen was sent for histopathological examination. In the histopathological examination, there was only non-specific vasculitis with thrombosis. The patient did not regain full consciousness on the following morning and was found to be quadriplegic with non-voluntary movements of the four limbs and face. The eyes could move only on the vertical plane, with both pupils having become small and fixed. After 72 hours, she managed to respond to questions only by blinking or moving her eyes vertically. Brain MRI revealed multiple infarction of the brainstem. Prolonged ventilatory support was maintained and eventually a tracheostomy was performed to facilitate tracheobronchial suctioning and weaning. Acute renal failure with anemia was managed and the kidneys recovered completely. However, the patient remained in this locked-in state for 4 weeks with no neurological improvement despite all ventilatory, nutritional, and nursing support. She eventually expired from hepatic failure and generalized sepsis.