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Biomedical subjects

K Kusuhara

Publications and source records attributed to K Kusuhara.

At least 127 records · Page 7Linked to original sources
PubMed1985

Effect of truncal vagotomy on neurotensin-like immunoreactivity release in dogs.

To elucidate the relationship between the vagus nerve and circulating neurotensin release, mongrel dogs were given an intraduodenal infusion of a 50 ml water solution containing 10 g glucose (n = 4) or 5 g soybean oil (n = 7) over a period of 4 min before and after truncal vagotomy with pyloroplasty. In the prevagotomized animals only a slight increase of neurotensin-like immunoreactivity (NTLI) was observed following glucose infusion, while NTLI in response to fat infusion was significantly increased. After vagotomy, NTLI release following fat infusion was significantly decreased when compared to untreated control animals, suggesting that vagotomy causes a major alteration in circulating NTLI release and that the vagus nerve may play a definite role in fat-induced NTLI release.

Animals↗
PubMed1985

Epicardial cyst. Report of a case with successful resection.

As a result of mass-screening, a 7-year-old girl was noted to have an abnormal shadow and was subsequently diagnosed as having a pericardial cyst. During surgery, we discovered that the cyst originated from the epicardium, and only its free wall was resected with the cyst left open to the pericardial cavity. The postoperative course was uneventful. This is presumed to be the first case of epicardial cyst ever reported in Japan. In diagnosing the epicardial cyst, the use of chest films, echocardiography and computed tomography assist angiography in making a differential diagnosis from intracardiac lesion. In treatment, surgical resection is advised. Even though the cyst may be asymptomatic, the possible compression on the surrounding organs and possible rupture into the pericardial cavity must be avoided.

Child↗
PubMed1985

Quadricuspid aortic valve associated with severe aortic regurgitation.

A 57-year old man with severe aortic regurgitation was found to have a quadricuspid aortic valve. Aortic valve replacement was performed successfully with a St. Jude Medical prosthetic valve. On histological examination, the resected cusps showed fibrotic thickening with calcification.

Aortic Valve↗
PubMed1985

[Mitral valve replacement with preservation of whole papillary muscles and chordae tendineae].

A total of 20 patients underwent mitral valve replacement (MVR) with preservation of the papillary muscles (PM) and chordae tendineae (CT) with the object of maintaining left ventricular contractility and decreasing the risk of left ventricular rupture after surgery. The patients comprised of 8 males and 12 females whose ages ranged from 33 to 67 years. In 8 patients, the posterior leaflet was left in place and in 12, the CT to the anterior leaflet were also preserved by excision of the central portion and reattachment of the rest of the leaflet to the appropriate commissural regions. St. Jude Medical valves were exclusively employed as a substitute. Reasons for MVR were isolated MR in 12 cases, MRs in 5 and MSr in 3. There were one operative, one hospital and one late death respectively. Postoperative C.I. increased from 2.65 +/- 0.48 to 3.8 +/- 0.75 ml/min./M2 and LVEF increased from 55.1 +/- 11.4 to 63.4 +/- 13.4%. The area method showed marked improvement of segmental wall motion in anterolateral regions. Chordal shortening also disclosed improvement in long axis. Preservation of papillary muscles and chordae tendineae during MVR has been found to have a beneficial effect on postoperative left ventricular contractility.

Adult↗