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Biomedical subjects

W Dec

Publications and source records attributed to W Dec.

At least 19 recordsLinked to original sources
PubMed1996

The assessment of the umbilical blood flow of the surviving twin after the intrauterine death of the other twin.

This paper summarizes our experience with Doppler velocimetry in survivors of intrauterine co-twin demise. In the first trimester, ten dichorionic deaths occurred; none of the survivors developed flow disorders. During the second trimester, there were three intrauterine demises, two of them were monochorionic and the survivors developed flow disorders: one presented transitory venous flow aberration, the other one an impaired development of diastolic flow. In the third trimester, two intrauterine deaths occurred. One case of twin to twin transfusion syndrome (TTTS) was complicated by the donor's death and the recipient showed a loss of diastolic flow. The second one happened during a dichorionic twin pregnancy. The survivor presented high systolic/diastolic daily ratio (S/D = 7.8).

Female↗
PubMed1995

Sad fetus syndrome--gestational trophoblastic disease concurrent with a living fetus or fetuses.

The term gestational trophoblastic disease is used to indicate a group of both benign and malignant trophoblast, including molar degeneration of villi, hydatid mole, invasive mole and choriocarcinoma. This study shows a new classification of trophoblastic disease existing with a living fetus or fetuses. Benign hydatid mole is the initial stage of the disease continuum, whereas highly malignant choriocarcinoma is the final stage of this spectrum.

Choriocarcinoma↗
PubMed1995

[Effect of blood flow velocity on umbilical vessels in twin pregnancy].

The authors did analyzed Doppler indices in 26 twin pregnancies recognized by ultrasound in the first trimester, 20% of them resulted in singleton birth. There were disturbances of arterial and venous flow in cases of fetal demise occurring in the second and third trimester.

Blood Flow Velocity↗
PubMed1994

A comparison of VVIR and DDDR pacing following cardiac transplantation.

UNLABELLED: We compared the clinical course of patients paced in VVIR versus DDDR mode to determine the most appropriate method of pacing following cardiac transplantation. Pacemaker implantation was required in 9 of 90 orthotopic cardiac transplants (10%). Indications included sinus bradycardia or sinus arrest (8 patients) and AV node dysfunction (1 patient). VVIR pacemakers were implanted in four patients and DDDR in five patients. DDDR patients: The mean P wave was 1.7 mV and the mean atrial stimulation threshold was 0.8 V (at 0.5 msec). During follow-up of 20 months, two atrial lead complications developed (29% of leads in 33% of patients). No lead complications were directly related to endomyocardial biopsy. VVIR patients: All four patients developed VA conduction with mean VA time 180 msec (160-240 msec). Two patients developed pacemaker syndrome. CONCLUSIONS: VA conduction and pacemaker syndrome may develop in cardiac transplant recipients paced in the VVIR mode. Dual chamber pacing is technically feasible and preferable following cardiac transplantation.

Adult↗
PubMed1994

[HELLP syndrome].

The course of preeclamptic/eclamptic patients may be complicated by HELLP syndrome, a syndrome of intravascular hemolysis (H), elevated liver enzymes (EL) and low platelets count (LP). These patients typically present at early third trimester with epigastric or right upper quadrant pain, nausea and vomiting. They may present without the clinical signs of preeclampsia. The most frequent maternal complication are intravascular coagulopathy and acute renal failure. The grave prognosis for mother and fetus warrants physician awareness in order to accomplish early diagnosis and proper management.

Female↗
PubMed1994

[Evaluating the effect of smoking tobacco on some semen parameters in men of reproductive age].

Seminal fluid indexes (sperm count, motility, pH, morphology) were examined in 40 smokers and 30 nonsmokers. The sperm count and motility were lower in smokers. Smokers have also higher incidence of oligospermia compared to nonsmokers. There was no difference between pH and sperm morphology in smokers and nonsmokers. Additionally, smokers have higher levels of endogenous 17 beta-estradiol and sperm count below normal in nonsmokers. These results suggest that inveterate smoking can diminish fertility in men.

Adult↗
PubMed1994

[Examining the effects of tobacco smoking on levels of certain hormones in serum of young men].

Dehydroepiandrosterone (DHEA), testosterone (T), 17 beta-estradiol (E), prolactin (PRL) and gonadotropins (FSH, LH) were examined in 30 smokers and 25 nonsmokers. The mean E level was higher in smokers than nonsmokers, whereas the levels of T and DHEA are similar and did not differ significantly in smokers compared to nonsmokers. Smokers have also lower mean levels of LH, FSH and PRL than nonsmokers. However, smokers with low prolactin levels have also low sperm percent motility, these results suggest that changes in endocrine profile due to cigarette smoking can reduce the fertility.

Adult↗
PubMed1993

[Formation of an artificial vagina using Vecchietti's method].

In our report we present the use of the Vecchietti method in our modification to form an artificial vagina in women with Rokitansky-Küster-Hauser syndrome. Five surgical procedures were carried out and expected therapeutic result was obtained in the all cases. This method was estimated as very safe. No side effects were observed.

Abnormalities, Multiple↗
PubMed1992

Two-stage surgical treatment for male transsexuals.

A plan for complex treatment of male-to-female transsexuals is presented. On the basis of our experience in the management of 15 patients, two-stage surgical treatment aiming at the change of external genitals, as well as the obtained cosmetic and functional results are described.

Genitalia, Male↗
PubMed1988

[Effect of work performed by pregnant women on birth weight and fetal hypotrophy].

The studies have been aimed at evaluation of the effects of occupational and non-occupational work on foetal maturity and foetal intrauterine hypotrophy. The studies involved 17,134 women who gave birth to 17,324 newborns. The parturients have been divided into 5 groups: I--mental workers, II--physical workers, III--housewives, IV--farmers, V--peasant working also as labourers. The highest percentage of low birth weight newborns was found in peasant-labourers--16.96, housewives--12.42, and physical workers--11.77.

Birth Weight↗