Biomedical subjects

T Imazeki

Publications and source records attributed to T Imazeki.

33 records · Page 2Linked to original sources

PubMed1994

Direct lymphatic drainage from the esophagus into the thoracic duct.

The lymphatic vessels from around the esophagus which drain into the thoracic duct were identified macroscopically and histologically in 106 cadavers. Direct lymphatic drainage to the duct was macroscopically demonstrated by 84 vessels in 46 cases (43.4%). In 23 cases (19.8%), large collecting vessels arose from the thoracic esophagus and opened directly into the duct. In most of these cases (15/23) these lymphatic connections were found at the levels of the 1st-3rd or 6th-8th thoracic vertebrae. Histologic study revealed that two vessels originated from the fine lymphatic plexus in the esophageal adventita, which showed monocytic infiltration. In 11 of the 23 cases, an intercalated node was found along the thoracic duct. The results suggest that lymph drains rapidly into the systemic circulation via the thoracic duct. In view of the clinical applications in esophageal carcinoma, previous accounts of the extramural esophageal lymphatics concerned in direct drainage are discussed.

Aged↗

PubMed1992

[Benefit of the autoperfusion balloon catheter for emergency coronary artery grafting after failed percutaneous transluminal coronary angioplasty].

A 61-year-old man was operated on an emergent basis because of abrupt closure of left anterior descending coronary artery (LAD) following failed coronary angioplasty. At once abrupt closure occurred, Stack autoperfusion balloon catheter was placed across the coronary lesion to reestablish blood flow to the ischemic myocardial area with intraaortic balloon counterpulsation. Despite a longtime of 12 hours to cardiopulmonary bypass, the patient had been managed with excellent resolution of symptoms and ST elevation. Under a stable hemodynamic state, saphenous vein grafting to LAD was performed with minimal myocardial infarction. Stack catheter made it possible to perform the subsequent coronary bypass operation as a controlled, optimal revascularization procedure because of its passive autoperfusion effect.

Acute Disease↗

PubMed1991

[A case report of corrected hypertension after surgical revascularization for Takayasu's disease associated with severe hypertension].

A 59 year old woman presenting with headache subsequently diagnosed as having Takayasu's disease associated with marked systemic hypertension of 290/120 was operated on. She had a 90% constriction of the right renal artery, 70 mmHg pressure gradient across coarctation of abdominal aorta and severe calcification of thoracic and abdominal aorta. In order to correct the hypertension and the coarctation, right axilla-femoral artery and renal artery revascularization were performed. Study carried out one year later showed blood pressure 160/80 and no pressure gradient between upper and lower extremities.

Aortic Coarctation↗

PubMed1991

[Effect of GIK solution on the myocardial metabolism].

Effect of GIK solution (50% glucose 100 ml + insulin 20IU + KCl 20 mEq) infused in an hour on the myocardial metabolism was studied in the postoperative period following the open-heart surgery. Increase of arterial glucose, pyruvate, K+ and PCO2 and the decrease of pH was significant at the end of infusion. Increase of coronary sinus blood PCO2, myocardial oxygen extraction ratio for glucose and carbohydrate and the decrease of pH was highly significant. Myocardial oxygen extraction ratio for carbohydrate correlated significantly with the increase of coronary sinus blood PCO2 and the decrease of pH. Although the cardiac index correlated poorly with the myocardial oxygen extraction ratio for carbohydrate, a significant correlation was observed between the coronary arterial-sinus blood K+ difference and the coronary sinus blood PCO2, pH and myocardial oxygen extraction ratio for carbohydrate. It is suggested that the infused glucose with insulin and K+ was metabolized and degraded to CO2 and H2O quickly in the TCA cycle producing ATP and the rest was stored as glycogen with the uptake of K+ in the myocardium.

Adult↗

PubMed1986