The Waffle Procedure for Postoperative Constrictive Epicarditis after Expanded Polytetrafluoroethylene Surgical Membrane as a Pericardial Substitute / 日本心臓血管外科学会雑誌

Several substitutes have been utilized for pericardial closure after open heart surgery. A 55-year-old man was admitted to our hospital with a diagnosis of constrictive pericarditis 13 years after open mitral commissurotomy. At reoperation, the thickened pericardium was peeled off and the epicardium was covered with 0.1mm expanded polytetrafluoroethylene surgical membrane (Gore-tex^®, sheet thickness 0.1mm). At the 7th postoperative day, he complained of fatigue and dyspnea. Physical examination revealed jugular venous distension, hepatomegaly, ascites and peripheral edema. Cardiac catheterization suggested the suspicion of pericardial or epicardial constriction. On the 3rd-operation, the Gore-tex^® sheet was removed and multiple longitudinal and transverse incisions were made in the thickened epicardium, that is the waffle procedure, while protecting the myocardium and the coronary arteries. Perioperative hemodynamics improved remarkably. His cardiac index increased from 3.0 to 4.5<i>l</i>/min/m². The postoperative course was uneventful.

Successful Conservative Treatment with Continuous Irrigation of an Electrolyzed Strong Acid Solution for Prosthetic Graft Infection of Abdominal Aorta / 日本心臓血管外科学会雑誌

A 65-year-old woman underwent abdominal aortic replacement using a woven Dacron tube graft for abdominal aortic aneurysm on April 2nd, 1996. She had pyrexia on the 6th postoperative day and abdominal enhanced CT scan showed periprosthetic bubble formations. She underwent relaparotomy 14 days after the initial procedure due to large retroperitoneal abcess bacterial culture of which revealed methicillin resistant <i>staphylococcus aureus</i>. She underwent debridement and local irrigation by an electrolyzed strong acid solution. Her pyrexia diminished immediately after relaparotomy and bacterial culture of the drain of the left retroperitoneal space became negative 82 days later. She was discharged and has had no active inflammatory signs for 3 years. She is doing well at present.

A Case of Simultaneous Surgical Treatment for Descending Thoracic Aortic Aneurysm, Coronary Artery Disease and Left Common Iliac Artery Stenosis under Partial Cardiopulmonary Bypass / 日本心臓血管外科学会雑誌

A 72-year-old woman underwent simultaneous combined surgical treatment for descending aortic aneurysm, coronary artery disease and left common iliac artery stenoses. The operation was performed through the left posterolateral thoracotomy via the 6th intercostal space and a left retroperitoneal approach. At first, 10mm woven Dacron graft was anastomosed to the abdominal aorta as an inlet of the cardiopulmonary bypass and the left femoral vein was used for venous drainage. A saphenous vein graft was anastomosed to the left anterior descending artery during partial cardiopulmonary bypass with the heart beating. Secondly, the aneurysm was replaced with 24mm woven Dacron graft. Thirdly, the proximal end of the vein graft was anastomosed to the Dacron graft of the descending aorta. Finally after cardiopulmonary bypass was terminated, the distal end of the woven Dacron graft for arterial perfusion was anastomosed to the left external iliac artery in end-to-side fashion. The postoperative course was uneventful. We conclude that simultaneous operation for descending aortic aneurysm and coronary artery bypass grafting through left thoracotomy with the heart beating is useful in these combined diseases.

Aortic Arch Aneurysm Associated with Congenital Kinking of the Aorta / 日本心臓血管外科学会雑誌

A 31-year-old woman complained of dizziness. Preoperative aortogram revealed a saccular type of aneurysm of the aortic arch and abnormal origin of the left subclavian artery. She underwent reconstruction of the aortic arch through 4th intercostal thoracotomy on August 10th, 1996. The aneurysm originated distally to the left common carotid artery and its wall was very thin. Aortic arch replacement with woven Dacron prosthesis was performed between the left common carotid artery and the left subclavian artery using the inclusion method under hypothermic circulatory arrest. The post operative course was uneventful. Cystic medial necrosis of the aneurysmal wall, and normal arterial findings of the left femoral artery were recognized by the pathohistological examinations. Kinking of the aorta is a congenital disease due to abnormal embryonal development. The aortic arch elongates between the left common carotid artery and the left subclavian artery, and arch aneurysm originates in this portion, because the aneurysmal wall is very thin and fragile when accompanied with cystic medial necrosis. Therefore, it is important that the left subclavian artery originating distally to the arch aneurysm in this category of the aortic arch aneurysm be recognized. There are 11 cases which were successfully operated for aortic arch aneurysm associated with congenital kinking of the aorta in Japan.

A Rare Case of Primary Wireform Fracture Implanted in the Mitral Position of Carpentier-Edwards Pericardial Xenograft / 日本心臓血管外科学会雑誌

A 71-year-old woman underwent mitral valve replacement with Carpentier-Edwards Pericardial Xenograft for mitral regurgitation on January 8, 1987. She had nocturnal hematuria and paroxysmal nocturnal hemoglobinuria was diagnosed in November, 1992. She had congestive heart failure in February, 1993. Cineradiographical analysis revealed a fracture of the wireform in three locations of the Xenograft and the stent was distorted inward. A second mitral valve replacement was successfully performed on March 16, 1993. She was discharged 45 days after operation after an uneventful course.

A Case of False-aneurysm Due to Prosthetic Graft Dilatation after Thoracoabdominal Aortic Aneurysm Repair / 日本心臓血管外科学会雑誌

The patient was a 61-year-old male, who underwent thoracoabdominal aortic aneurysm repair with Gelseal Triaxial prosthetic graft 2 years previously. False-aneurysm due to prosthetic graft dilatation was diagnosed. The direct closure of the ostium of the disruption of the anastomosis was successfully performed by an emergency operation. The postoperative course was uneventful. This case suggests that prosthetic graft dilatation may cause false-aneurysm at the site of end-to-side anastomosis.