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Biomedical subjects

M T Gyepes

Publications and source records attributed to M T Gyepes.

At least 37 records · Page 2Linked to original sources
PubMed1977

Gray-scale ultrasonography of the normal female pelvis.

The pelvis was evaluated with gray-scale ultrasound in 45 normal females, important aspects of instrumentation, changes in scanning techniques, and pitfalls in the identification of various normal anatomical structures are described, and normal ranges of uterine size and ovarian volume are reported.

Adolescent↗
PubMed1977

Pre and postoperative ventricular function in infants and children with right ventricular volume overload.

Hemodynamic and ventricular volume parameters were evaluated in 21 patients (24 studies) with total anomalous pulmonary venous return (TAPVR), 11 patients with secundum atrial septal defect (ASD), and eight patients who had complete correction of TAPVR or ASD. Right and left ventricular (RV and LV) volume parameters were calculated according to Simpson's rule and the area length methods, respectively. In infants with TAPVR, RV end-diastolic volume was larger than normal, but RV ejection fraction was significantly less than normal. LV end-diastolic volume and LV ejection fraction were all less than normal in infants with or without pulmonary hypertension, and the values did not correlate with the cardiorespiratory symptoms. In children with TAPVR or ASD, RV end-diastolic volume and output were higher than normal preoperatively and decreased to normal or near normal values postoperatively. The data suggest that pulmonary venous obstruction and/or RV failure are responsible for cardiorespiratory symptoms in infants with TAPVR and early surgical intervention is recommended in these patients.

Blood Volume↗
PubMed1977

Fiberoptic endoscopy and upper gastrointestinal series: comparative analysis in infants and children.

Fiberoptic endoscopy is a new and highly efficient diagnostic tool which is being increasingly used in the pediatric age group. Its use in children requires general anesthesia, special facilities, and technical expertise. We have compared the results of upper gastrointestinal barium studies and fiberoptic endoscopy in 75 cases. Results agreed in approximately two-thirds of the cases; in one-third there was disagreement. Superficial lesions in the esophagus, stomach, and duodenum were most often missed by conventional barium studies. False positive radiologic reports were primarily related to the region of the duodenum.

Adolescent↗
PubMed1976

Assessment of velar and lateral wall movement by oral telescope and radiographic examination in patients with velopharyngeal inadequacy and in normal subjects.

Thirty-one patients referred to the Craniofacial Anomalies Clinic for speech evaluation were evaluated by endoscopy and cineradiographic examination (lateral and submentovertical projection). Movement of the velar and lateral walls was examined by both procedures in order to determine the accuracy of the endoscopy in assessing velopharyngeal movement. Cineradiography confirmed endoscopic observation in a large percentage of patients. In a second study, lateral wall motion was assessed in 20 cleft palate patients with repaired hard and soft palate but with velopharyngeal inadequacy. Four categories of closure defined in a previous study on normal subjects were used to classify lateral wall movement in the cleft palate patients. Mesial lateral motion past the sides of the velum during phonation occurred less frequently in patients with velopharyngeal inadequacy than in persons with normal strucutres. The absence of lateral wall motion was observed more often in the cleft palate patients, although in over half of these patients the lateral walls moved mesially and filled Rosenmuller's fossa (lateral recesses). Degree of lateral wall movement, which varies among cleft palate patients, should be estimated before construction of a prosthesis or pharyngeal flap in order to determine whether occlusion of the lateral gutters will occur during phonation.

Adolescent↗
PubMed1976

Recurrent renovascular hypertension. Report of an unusual case.

A 7-year-old girl with histologically proved fibromuscular dysplasia underwent renal autotransplantation with prompt return of the blood pressure to normal. Two months later, immediately after tonsillectomy, severe hypertension recurred with marked narrowing of the previously patent anastomosis. After 4 weeks on antihypertensive therapy, the patient became normotensive again and remained so for 18 months, with marked widening of the anastomosis. It is possible that this complication might be explained on an immunologic basis.

Child↗