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Biomedical subjects

H Hidai

Publications and source records attributed to H Hidai.

At least 55 records · Page 3Linked to original sources
PubMed1978

Retrocaval ureter in children. Report of two cases.

2 cases of retrocaval ureter in children diagnosed by the combination of pyelography and cavography are reported. Transection and repositioning of these ureters corrected their abnormality. Retrocaval ureter in children is briefly discussed.

Child↗
PubMed1976

Transmembrane pressure stabiliser for haemodialysis.

A simple, new device for setting and maintaining the pressure for ultrafiltration during renal dialysis with a coil dialyser is described. Experimental evidence suggests that it has distinct advantages over the conventional method and in clinical use in more than 1,000 cases no difficulties have been encountered.

Humans↗
PubMed1975

Cushing's syndrome due to huge adrenocortical multinodular hyperplasia.

A case of Cushing's syndrome due to huge adrenocortial multinodular hyperplasia who was shown to be hyperresponsive to ACTH administration, unresponsive to metyrapone administration and resistant to dexamethasone high dose suppression was reported. After two years' duration of his symptoms, the multinodular adrenals weighing 161 g in total were removed by bilateral adrenalectomy which abolished his symptoms. Postoperatively, plasma ACTH rose gradually to above normal levels, suggesting the presence of primary disorder in the hypothalamus-pituitary axis.

11-Hydroxycorticosteroids↗
PubMed1975

Telemetric monitoring device to detect thrombosis in the external arteriovenous shunt.

A telemetric monitoring system of the external arteriovenous shunt for long term hemodialysis was deviced. Analysis of the arteriovenous shunt bruit showed that frequency distribution of the bruit ranged between 25 and 500 Hz. An air transmission type microphone with an optimum frequency at 200 Hz was designed. The monitoring system, including the microphone, a small FM transmitter and an FM receiver with an alarm system by the transmitter. The signals received by the FM receiver were amplified and selected by a bandpass filter. After being all-wave rectified, and averaged for one min by the averaging circuit, the signals were finally balanced by the standard signal and the precision comparator. When the arteiovenous shunt bruit ceased for more than one min, the alarm system went off. The system frequently detected obstruction of blood flow due to flection of the forearm during sleep and by other causes, thereby preventing clotting of the arteriovenous shunt flow. Thrombosis in the arteriovenous shunt was detected 5 times by the telemetric device while the patients were alseep at home, and declotting was successful in all the cases. The system has proven to be available for early detection of shunt obstruction and of clot formation inside the arteriovenous shunt.

Animals↗