Circulatory support devices have become an important component for transplantation programs as they successfully bridge unsalvageable patients who would otherwise die. Between October 1997 and April 2001, 6 patients in profound heart failure were treated with a percutaneous cardiopulmonary support system (PCPS), or with ventricular assist device (VAD), or with both PCPS and VAD. Two patients were treated only with a PCPS, and one weaned case survived. Another 2 patients, who had dilated cardiomyopathy, was treated with VAD. They improved hemodynamically, and their general conditions made them fit to be candidates for heart transplantation. Two other patients who had PCPS insertion before VAD died due to multiple organ failure. Before the application of VAD, the levels of total bilirubin were 14.9 and 20.9mg/dl respectively. In acute worsening of hemodynamics, PCPS is useful to maintain total circulation by quick application. However, long-term support with VAD should be considered to resuscitate impaired end-organ function by carefully selecting the timing of a VAD implantation.

Constrictive pericarditis after open heart surgery is a rare entity that is difficult to diagnose. There are various approaches in the surgical treatment of pericarditis. We performed a pericardiectomy on cardiopulmonary bypass via a median approach with good results. A 67-year-old man underwent mitral valve repair in 2005. He began to experience easy fatigability as well as leg edema beginning in January 2010 for which he was treated medically. The fatigability worsened in July 2012. Echocardiography at that time was unremarkable. However, CT and MRI showed pericardial thickening adjacent to the anterior, posterior, inferior, and left lateral wall of the left ventricle. Bilateral heart catheterization revealed dip and plateau and deep X, Y waves as well as end-diastolic pressure of both chambers approximately equal to the respiratory time. He was diagnosed with constrictive pericarditis and taken to surgery. The chest was entered via median sternotomy and cardiopulmonary bypass was initiated to facilitate complete resection of the pericardium. The left phrenic nerve was visualized and care was taken to avoid damage to the structure. A part of the pericardium was strongly adherent to the epicardium. We elected to perform the waffle procedure. After pericardial resection, cardiac index improved from 1.5 l/min/m² to 2.7 l/min/m², and central venous pressure improved from 17 to 10 mmHg. Postoperatively, dip and plateau disappeared as measured via bilateral heart catheterization and diastolic failure improved. In the treatment of constrictive pericarditis, we should resect as much of the pericardium as possible. Depending on the case, this can be facilitated by median sternotomy and cardiopulmonary bypass.

Early surgical resection for cardiac myxoma is necessary because it may frequently cause cerebral infarction. However the optimal surgical timing for the disease is controversial because the acute phase of infarction may induce intracranial hemorrhage. An 82-year-old woman referred to our hospital because of unconsciousness and right hemiparesis. MRI showed infarction in the left middle cerebral artery area and UCG revealed a left atrial mass. The fourth day after the onset, brain CT showed hemorrhagic infarction and MRI showed new infarction. There was no enlargement of the hemorrhagic focus on brain CT and the patient underwent surgery on the fifth day after the onset. The postoperative course was uneventful. Despite the existence of hemorrhagic infarction, open heart surgery may save patients with cerebrovascular event.

We herein describe the findings of a 32-year-old female was known to have had an electrocardiogram abnormalities and had avoided excessive exercise since her high school student days. She suddenly lost consciousness due to ventricular fibrillation (Vf) in July 2007. As a result she was taken to our hospital by ambulance. Emergency coronary angiography demonstrated an anomalous origin of the left coronary artery from the pulmonary artery (Bland-White-Garland Syndrome). She therefore underwent surgery. During the operation, the main pulmonary artery (PA) was transected while on the cardiopulmonary bypass and the left main coronary trunk (LMT) ostium was detected. Antegrade cold blood cardioplegia was induced, and retrograde continuous cold blood cardioplegia was subsequently applied to the coronary sinus, thus obtaining a complete cardiac standstill. The LMT ostium was excised with a cuff of the main PA wall as a button. During further dissection of the LMT distally to the bifurcation, the LMT wall was injured, thus resulting in the need to repair it under deep hypothermic circulatory arrest (DHCA) in order to obtain a bloodless surgical field. During core cooling, the LMT was anastomosed to the left posterolateral wall of the ascending aorta, then the LMT was repaired with a patch consisting of a non-treated autologous saphenous vein (SV) under DHCA. Several surgical techniques for BWG syndrome have been reported. Among these techniques, the direct implantation of the left coronary artery to the ascending aorta is the most physiological and therefore is considered to be the best technique. In this case, direct implantation was accomplished, however, the LMT also had to be repaired.

We performed redo coronary artery bypass grafting (CABG) using lateral MIDCAB for 3 patients with severe symptomatic ischemia in the left circumflex system alone. When the descending thoracic aorta had no atherosclerotic lesions on chest CT, it was selected as the inflow of the bypass. According to the location of the target artery, we undertook sequential or T-composite off-pump bypass using the radial artery through a left lateral thoracotomy. On the other hand, when the descending aorta was diseased, the left axillary artery was chosen as the inflow of the bypass. We selected the saphenous vein as a conduit to obtain sufficient graft length. A proximal anastomosis was made through a left infraclavicular incision, and then a distal anastomosis was done through a left lateral thoracotomy without cardiopulmonary bypass. Moreover, care was taken not to kink the grafts. The postoperative course was uneventful in all patients. Lateral MIDCAB technique was useful for redo revascularization to the circumflex system. We believe that selection of bypass conduits, routes, and bypass inflow according to the individual patient is essential for the procedure.

A 61-year-old man underwent percutaneous coronary intervention (PCI) for the right coronary artery. However, he had an acute onset of right neck pain and swelling after PCI. Contrast enhanced computed tomography (CT) revealed extravasation into the mediastinum and aberrant right subclavian artery. After transfer to our hospital, we performed emergency endovascular repair for iatrogenic arterial injury. His postoperative course was uneventful.

Multivessel coronary artery bypass grafting (CABG) utilizing ITA grafts was performed in 110 consecutive patients, ranging in age from 24 to 76 years with a mean of 54±9 years. A mean of 3.2±0.8 grafts per patient was placed with a hospital mortality of 0.9%. Bilateral ITAs (BITA) were used in 87 patients and sequential ITA grafting (SQ-ITA) was carried out in 31, and both BITA and SQ-ITA were used in 8 patients. Noncardiac late death occurred in 1 patient and a 5-year survival rate was 98%. During this follow-up term, 11 (10%) patients underwent low-risk PTCA for ITA anastomotic stenosis (4 lesions), SVG stenosis (5 lesions) and native coronary stenosis (4 lesions) with a success in all. No reoperation has been required so far in this series. Graft patency rates were 97% for BITA with no differences for the left and right ITAs, and 100% for SQ-ITA (both proximal and distal). No sternal infection was encountered in this series, on which we believe mediastinal, sternal and subcutaneous irrigation appeared most effective. In BITA grafting, right ITA was frequently anastomosed to the LAD, passing on the aorta, which will make reoperation through a median sternotomy dangerous to this graft. To improve safety for reoperation, we have covered the ITA graft with an 8mm EPTFE graft or membrane with no side effects on ITA grafts. However, true efficacy of this protective method remains unproved because no reoperations have been required in this series of patients.

The sudden onset of anuria in a 71-year-old man was found to be caused by the non-inflammatory (atherosclerotic) large abdominal aortic aneurysm compressing the bilateral ureters. A computed tomography scan demonstrated the bilateral extrinsic ureteral obstructions due to the large aneurysm of 13cm in diameter, left hydronephrosis and no thick layer of perianeurysmal fibrotic tissue. On the 9th day from the onset of anuria, an emergency operation was performed. There was no fibrotic adhesions around the aneurysm and mobilization of the aorta was easy. A straight Dacron prosthesis was inserted between the infrarenal aorta and the bifurcation of the abdominal aorta following resection of the aneurysm of the atherosclerotic origin. Soon after the operation, the patient had very good urinary output with adequate recovery of renal function. This case seems to be very uncommon, but very important in the surgical management of abdominal aortic aneurysm complicated by oliguria or anuria.

Central diabetes insipidus (CDI) is a disease that caused by insufficient or no anti-diuretic hormone (ADH) secretion from the posterior pituitary, which results in an increase in urine volume. CDI is controlled with ADH supplementation thereby reducing urine output and correcting electrolyte imbalance. However, reports on perioperative management for CDI patient are scarce, especially for patients who underwent cardiac surgery. We herein report our experience of the management of a CDI patient who underwent surgery for valvular heart disease.

The case is a 72-year-old woman who developed secondary CDI after pituitary tumor removal. She had been controlled with orally administered desmopressin acetate hydrochloride. She underwent aortic valve replacement and mitral valve repair for severe aortic, and moderate mitral regurgitation. Immediately after surgery, we started vasopressin div, which yielded good urine volume control. However, once we started to switch vasopressin to oral desmopressin administration, the control became worse. We thus made a sliding scale for subcutaneous injection of vasopressin every 8 h according to the amount of urine output, which resulted in good control. Overlapping administration of vasopressin and oral desmopressin between postoperative day 12 and 17 resulted in successful transition. The patient was discharged with oral desmopressin administration. Management with sliding scale for vasopressin subcutaneous injection after surgery was useful in controlling a CDI patient who underwent major cardiac surgery.