Setsuo Takeuchi

Meckel's diverticulum: Investigation of 600 patients in Japanese literature

A total of 600 cases, comprising 4 of our cases and 596 others in Japan, was analyzed, and the diagnosis of Meckels diverticulum was made in only 34 of them. The rate of diagnosis was 5.7 per cent, which is very low. The most common complication of this disease was intestinal obstruction, the second most common was intussusception, the third was inflammation, and the fourth was rectal bleeding. Ectopic tissue, present in ninety-three patients, consisted of ectopic gastric mucosa in fifty-eight. 99mTc-P scanning was performed on fifteen patients. In twelve of them ectopic gastric mucosa was observed. However, it was not found in three, all of whom had false-positive scans.

Scientific paperMeckel's diverticulum: Investigation of 600 patients in Japanese literature

A total of 600 cases, comprising 4 of our cases and 596 others in Japan, was analyzed, and the diagnosis of Meckels diverticulum was made in only 34 of them. The rate of diagnosis was 5.7 per cent, which is very low. The most common complication of this disease was intestinal obstruction, the second most common was intussusception, the third was inflammation, and the fourth was rectal bleeding. Ectopic tissue, present in ninety-three patients, consisted of ectopic gastric mucosa in fifty-eight. 99mTc-P scanning was performed on fifteen patients. In twelve of them ectopic gastric mucosa was observed. However, it was not found in three, all of whom had false-positive scans.

The radial recurrent fasciocutaneous flap: reverse upper arm flap

We have recently designed and developed a radial recurrent fasciocutaneous flap based on the radial recurrent artery. This artery supplies the supinator, brachialis and elbow joint, ascending to the fascia, subcutaneous tissues and skin over the lateral aspect of the upper arm, and anastomoses with the radial collateral artery. We describe the use of this fasciocutaneous flap in the repair of elbow lesions.

The lateral thigh fascio-cutaneous flap in the repair of ischial and trochanteric defects

We have recently designed and developed a lateral thigh fascio-cutaneous flap based on the first perforating artery. This artery supplies the distal part of the gluteus maximus muscle and continues to supply the fascia, subcutaneous tissues and skin over the lateral aspect of the thigh. We describe the use of this fascio-cutaneous flap in the repair of ischial and trochanteric defects.

The use of lower trapezius myocutaneous island flaps in head and neck reconstruction

Abstract The lower portion of the trapezius muscle can be designed as an island myocutaneous flap and has certain advantages when compared with the more familiar upper trapezius myocutaneous flap. Several authors have reported the use of trapezius myocutaneous flaps usually based on the upper portion of the trapezius muscle: McCrawet al. (1979); Lamberty (1979); Mathes and Nahai (1979); Bertotti (1980). We have previously reported the use of the lower portion of the trapezius muscle as a myocutaneous flap in head and neck reconstruction (Maruyamaet al., 1981) and now wish to report its adaptation as an island flap in two patients.

A case of mesenteric cyst diagnosed by ultrasound examination and a review of Japanese literatures.

Mesenteric cyst is relatively rare, and its diagnosis is difficult. We carried out an ultrasound examination on a 6-year-old boy who showed intestinal obstruction. This examination revealed an abdominal mass, and he was diagnosed as mesenteric cyst. Later it was confirmed by operation. The histopathological examination revealed that it was a lymphangioma. A review was also carried out on 288 cases of mesenteric cyst in Japan.

Observation of cystic dilatation of the common bile duct by ultrasonography

We have studied a patient with congenital cystic dilatation of the common bile duct who had undergone ultrasonography five times in 6 mo before operation. Ultrasonography revealed that the duct was distended with inflammation, and was deflated when inflammation was not present.

Analysis of thromboxane B3 converted from eicosapentaenoic acid in human platelet rich plasma by gas chromatography/mass spectrometry

Gas chromatographic mass spectrometric determination of thromboxane B3 (TXB3) synthesized from platelet is described. Eicosapentaenoic acid (EPA) was added to human platelet rich plasma and after the reaction the exstraction was carried out. Plasma thromboxanes were run through an Amberlite XAD-2 and SEP-PAK silica cartridge, and then chromatographed using silicagel thin layer plate to remove interfering materials, such as 6-keto-prostaglandin F1 alpha. Extracted thromboxanes were converted into the methoxime-dimethylisopropylsilylmethyl ester derivatives and they were measured by gas chromatography/ammonia chemical ionization mass spectrometry. Three peaks were obtained on the gas chromatogram which were presumed to be 3-series metabolite product TXB3 and their related substances. Results indicates the human platelet may easily convert EPA to TXB3 by adding EPA to PRP without adding arachidonic acid.

Dynamics of kallikreinogen under hemodialysis.

There are many complications due to hemodialysis, causes of which seem to lie under disorders of the coagulation system, fibrinolytic system, and kinin system. Therefore, it is important to understand the dynamics of these systems during hemodialysis. Accordingly, kallikreinogen, plasminogen, plasmin inhibitors, contact factor, antithrombin, and prothrombin were assayed during the experimental dialysis, experimental ultrafiltration and clinical hemodialysis. Plasmin inhibitors decreased remarkably by dialysis. They then recovered the pre-dialytic values as time went on. Kallikreinogen did not show any definite tendency immediately after the beginning of dialysis, but two hours later its value rather increased relative to thepre-dialytic value. It was supposed that this increase was caused by reactive hyperproduction due to gradual consumption of kallikreinogen. Contact factor slightly decreased by dialysis, whereas prothrombin and antithrombin decreased apparently. When hemodialysis is practiced, it is necessary to fully realize that the coagulation system, fibrinolytic system, and kinin system might lose their balance.