Biomedical subjects

Hisayoshi Osawa

Publications and source records attributed to Hisayoshi Osawa.

3 recordsLinked to original sources

PubMed2004

Dissection of intima on atrial septum patch after mitral valve replacement in a patient with infective endocarditis after incomplete atrio-ventricular septal defect repair: report of a case.

We encountered a very rare lesion, which included a dissection between a prosthetic patch for repair of an incomplete atrio-ventricular septal defect (AVSD) and a pseudo-intima which had developed. This is the first report of a dissection between an atrial septum patch and pseudo-intima after mitral valve replacement (MVR) in a patient with infective endocarditis following an incomplete AVSD repair. Dissection of the left atrial wall or atrial septum after MVR is extremely rare although some case reports have been published.

Adult↗

PubMed2004

[Removal of a steel bar after Nuss procedure for pectus excavatum; report of a case].

Recently, an increasing number of patients have been treated with the Nuss procedure for pectus excavatum. One of the merits is that this surgical procedure is less invasive and leads to good cosmetic results compared with the former traditional procedures such as sternal turn over. We have repaired 60 cases of pectus excavatum using the Nuss procedure at our institute since July 1999. We have experienced the removal of a steel bar, which was the first case of Nuss procedure at our institute.

Child↗

PubMed2004

New material for Nuss procedure.

The Nuss procedure for pectus excavatum repair has been considered an acceptable method in terms of its decreased invasiveness and excellent cosmetic results. Although a steel bar is usually used for elevating the sternum, we used a titanium alloy plate for pectus excavatum repair for the first time. The characteristics of this plate are that 1) it comes out translucently on X-rays, 2) MRI examination is possible because titanium will not be magnetized, and 3) it is possible to go through the security checkpoint at the airport without setting off the metal detector. Furthermore, the titanium alloy is highly elastic, which reduces complications such as dislocation, and it excels in the conformity to organization. Patients who have received the Nuss operation are forced to somewhat limit their daily life for two or three years until the bar is removed. A plate made from titanium alloy resolves this problem because of its material and it is thought to be an ideal candidate for elevating the sternum during the Nuss operation.

Activities of Daily Living↗