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Article in Japanese | WPRIM | ID: wpr-361831


We describe two cases of a 9-day-old male and a 5-year-10-month-old female who had congestive heart failure due to severe mitral regurgitation. Preoperative echocardiogram revealed severe mitral regurgitation due to dysplasia of the leaflet, chordae and papillary muscle. Because the leaflet area was not enough for the valve orifice, we performed double orifice repair by suturing the free edge to the corresponding edge of the opposite leaflet. The mitral regurgitation was found to be significantly reduced on postoperative echocardiogram. Double orifice repair is simple and can be performed rapidly. However, although this technique has been performed in adults, it has not been commonly performed in infants. Our results suggest that this procedure can be useful for the congenital mitral regurgitation. Long-term follow-up is needed to confirm the result.

Article in Japanese | WPRIM | ID: wpr-367171


A 52-year-old man had a history that included aortic valve replacement due to infectious endocarditis in 1987. Chest X-ray showed slight enlargement of the superior mediastinum in 1998, but the enlargement was very mild and there had not been any significant change since 1998. However, chest X-ray demonstrated an extremely protruding mass on the right side of the superior mediastinum in May 2004 and a pseudoaneurysm located in the ascending aorta was demonstrated by computed tomography. We considered this aneurysm had been caused by ascending aortic cannulation for blood return from cardiopulmonary bypass (CPB) during the previous surgery. On re-operation, CPB was established by femoro-femoral bypass and median sternotomy was performed. The pseudoaneurysm measured 60mm in diameter and there was a felt-pledget on top of the aneurysm. Under deep hypothermic cardiac arrest, we incised the aneurysm and closed the orifice of the pseudoaneurysm using a patch (Hemashield Woven Fabrics). On pathological examination, the wall of the pseudoaneurysm showed a structural loss of the blood vessel and the felt-pledget had been exposed to the inferior of the aneurysm breaking through the wall. We considered this a non-mycotic pseudoaneurysm because of this patient's clinical course, surgical and pathological findings. We encountered a pseudoaneurysm in the ascending aorta that was detected and treated surgically about 20 years after aortic valve replacement.

Article in Japanese | WPRIM | ID: wpr-367166


HIV infection is an extremely serious problem, and the number of HIV-infected patients is increasing in the world. The introduction of highly active antiretroviral therapy (HAART) and protease inhibitors (PI) allows maintenance of the inhibition of viral replication and partial reinstating the immune system in most patients. As HIV has changed from a progressive fatal illness to a chronic condition, many infected patients increasingly require diverse health services including cardiac surgery. We report a case of a 68-year-old man with HIV infection who underwent successful coronary artery bypass grafting using a cardiopulmonary bypass. The operative indication were determined according to the CD 4 count and the amount of HIV-RNA. Standard precautions were taken in the same way as for hepatitis B and hepatitis C cases. There was no percutaneous exposure to HIV infected blood. The postoperative course was uneventful, and the patient was discharged with no complications of HIV. The patient has been quite well without any therapy for HIV over one year.