1.Cardiac Surgery for Takayasu's Disease.
Yukihisa Isomatsu ; Hiroyuki Tsukui ; Shuichi Hoshino ; Yasushi Nishiya
Japanese Journal of Cardiovascular Surgery 2001;30(1):15-18
Eight patients with Takayasu's disease underwent cardiac surgery between 1983 and 1998. All were women and the age at the time of operation ranged from 42 to 68 years (mean, 53.8 years). They were divided into two groups according to the coronary artery involvement: group A (n=3) had aortic regurgitation with an intact coronary artery and underwent aortic valve replacement (AVR); group B (n=5) had coronary artery lesion and underwent coronary artery bypass grafting (CABG) concomitant with or without AVR. All AVR procedures were performed using mechanical valves. At the CABG operation, saphenous veins alone were used in three cases and the left internal thoracic artery and saphenous veins in two. The actuarial survival rate was 65.6% at 5 years and 32.8% at 10 years. There were no early or late deaths in group A. On the contrary, there were one hospital death and two late deaths in group B. We discussed the timing of surgical intervention, the kind of prosthetic valve, the material of bypass graft and the procedure of CABG, the postoperative steroid use, and the surgical prognosis. The optimal timing of surgery for cardiac involvement is, needless to say, the inactive phase of inflammation. However, there are some patients who require operations during the active phase because of medically intractable or worsening symptoms. There is a consensus regarding the kind of prosthesis, and the mechanical valve is usually employed. There are still controversies regarding the material of grafts. We do not know the late results of saphenous vein graft in Takayasu's disease although saphenous vein is thought to be the choice of graft and several CABG procedures are advocated. The left internal thoracic artery might be used as a graft if the patient with Takayasu's disease had no subclavian artery lesions and was stable with an antiinflammatory regimen. We recommend the postoperative steroid therapy to control inflammation and also describe the antiinflammatory regimen after cardiac surgery in Takayasu's disease. It is essential that we have to meticulously follow up the patients with Takayasu's disease who underwent cardiac operations, paying especial attention to the side effects of steroid as well as the progression of inflammation.
2.A Case of Abdominal Aortic Aneurysm with Ectopic Renal Artery
Hiroaki Yusa ; Masahiro Toshima ; Takeshi Konuma ; Shuichi Hoshino ; Yasushi Nishiya
Japanese Journal of Cardiovascular Surgery 2005;34(6):425-428
A 72-year-old man presented with abdominal aortic aneurysm (AAA) and was referred to our hospital by his physician. A computed tomography revealed a 95-mm AAA with three right renal arteries. The main right renal artery branched from the AAA, and two remaining arteries branched from the same level as the left renal artery. The patient underwent AAA repair and main right renal artery reconstruction without any renal protection. After the operation, renal function did not deteriorate. 3D-CT was useful for diagnosing renal artery branching, evaluation of renal blood perfusion, and determining the operation method.
3.A Case of Double Valve Replacement with Antiphospholipid Syndrome
Hiroaki Yusa ; Yasushi Nishiya ; Akira Murata ; Norihiko Saitoh ; Shuichi Hoshino
Japanese Journal of Cardiovascular Surgery 2007;36(6):329-332
A 39-year-old woman was found to have a heart murmur by a medical examination at age 37. During a checkup at our hospital, echocardiography revealed mild aortic valve regurgitation (AR) and mild mitral valve regurgitation (MR). When she was 39 years old, echocardiography revealed severe MR and moderate AR. Based on preoperative examinations, antiphospholipid syndrome (APS) was diagnosed. Therefore, she received high-dose prednisolone therapy and underwent plasma exchange before the surgery. We performed double valve replacement using a bioprosthetic valve. On the first postoperative day (POD 1), the number of platelets suddenly decreased. We diagnosed catastrophic APS, and treated her with high-dose prednisolone, high-dose immunoglobulin and plasma exchange. Her blood platelet gradually increased on POD 3. Although she needed time for rehabilitation, she was discharged from our hospital on POD 88. APS can cause a catastrophic event triggered by an operation. Therefore, stringent pre- and postoperative management is necessary in patients with APS.
4.A Traumatic Thoracic Aorta Injury Case Saved by Helicopter Transport and Emergency Surgery
Tetsuyuki Ueda ; Masami Sotokawa ; Minori Tateishi ; Saori Nagura ; Shuichi Hoshino ; Yasushi Nishiya
Japanese Journal of Cardiovascular Surgery 2009;38(4):244-247
This study reports a 38-year-old man who suffered traumatic thoracic aorta injury due to a fall accident during mountain climbing, and was saved by swift helicopter transport and emergency surgery. Approximately 2 h after the accident, the subject was brought to the hospital by the emergency helicopter transport service. Contrast-enhanced CT of the thorax and abdomen revealed leakage of the contrast medium from the aortic isthmus and a hematoma in the surrounding area. Thus, traumatic thoracic aorta injury was diagnosed and emergency surgery was performed. The patient went into a state of shock after being given anesthesia. Further rupture was diagnosed and a left fourth intercostal thoracotomy was performed immediately in order to control the hemorrhage. Concurrently, a partial cardio-pulmonary bypass was used. A lacerated foramen was observed across 1/3 of the lesser curvature of the aortic isthmus ; the affected site was replaced by a prosthetic graft. The postoperative recovery was generally uneventful, and the patient was discharged from the hospital 30 days after the operation.
5.Medical Education Specialist Certified Coursework
Yasushi MATSUYAMA ; Katsumi NISHIYA ; Kazuhiko FUJISAKI
Medical Education 2021;52(6):503-508
The Medical Education Specialist Certified Coursework, which has been officially in operation since 2014, has produced 181 specialists to date. In response to the globalization of medical education, the program has established a system to foster specialists who can work to improve education in accordance with international standards at each educational institution. However, the outbreak of COVID-19 made it impossible to hold face-to-face lessons, forcing the organizers to reform the course. The course resumed in February 2021 as a full online course. Moodle was used as the learning platform, and lectures and group work were conducted via Zoom. There were no major connection problems, and the results of the post-course questionnaire showed a high level of satisfaction and usefulness of the learning. To make this course a good practice for a new era in education, the strengths of both face-to-face and online methods should be incorporated.