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Biomedical subjects

Z Maly

Publications and source records attributed to Z Maly.

6 recordsLinked to original sources
PubMed1995

Localization of blood vessels and qualitative assessment of blood flow in ovarian tumors.

OBJECTIVE: To study the localization of blood vessels within a tumor and the shape of the flow curve as a method of assessing ovarian neoplasms. METHODS: We studied 39 patients with malignant tumors and 63 patients with benign ovarian tumors by means of vaginal color Doppler ultrasound, noting the localization of blood vessels in the tumors, the shape of the flow curve, and peripheral resistance. RESULTS: Blood vessels could be visualized in 95% of the malignant tumors and in 70% of the benign tumors. Blood vessels tended to be localized centrally (65 versus 5%) in malignant tumors and peripherally in benign tumors (65 versus 0%). A diastolic notch was seen in 89% of the benign tumors, but in none of the malignant tumors. The mean resistance index (RI) +/- standard deviation was 0.48 +/- 0.19 in malignant and 0.69 +/- 0.09 in benign tumors (P < .05). The corresponding values for the pulsatility index (PI) were 0.56 +/- 0.13 and 1.06 +/- 0.07, respectively (P < .01). CONCLUSIONS: Low RI and PI values are general indicators of tumor growth. The localization of blood vessels within an ovarian tumor and the presence or absence of a diastolic notch are the most useful variables in the evaluation of ovarian tumors.

Adult↗
PubMed1994

[The birthing stool--an obstetrical risk?].

During 1992, 140 women out of a total of 1122 used the delivery chair at the department for obstetrics and gynaecology at the LKH Mödling. We compared them to a control group in the supine position. In order to evaluate the safety of deliveries on the delivery chair, we studied the duration of the stages of labour, rate and degree of soft tissue injuries, maternal blood loss, fetal outcome and complications in the puerperium. The use of the delivery chair showed no increased risk to either the mother or the fetus and therefore represents an appropriate alternative to the traditional supine position for delivery.

Adolescent↗
PubMedDate not supplied

[Decrease in cerclage incidence in multiple pregnancies by vaginal ultrasound monitoring].

Cervical insufficiency is a frequent complication particularly in case of multiple pregnancy and is often considered to be an indication for cerclage operation. We performed a vaginosonographic monitoring prospectively in 35 cases with multiple pregnancy in order to diagnose cervical insufficiency early and to perform cerclage operation when indicated. The results were compared with a group of 41 patients with multiple pregnancy who received prophylactic cerclage in other hospitals. No significant difference occurred concerning the duration of the pregnancy. In patients without prophylactic cerclage the frequency of preterm contractions was significantly lower, the frequency of premature rupture of membranes, however, was higher. Our results confirm the hypothesis that the application of a prophylactic cerclage does not improve fetal outcome in case of multiple pregnancy. Vaginosonographic as a single monitoring procedure seems to sufficient for the early diagnosis of cervical insufficiency.

Adult↗