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Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(1):19-24
05-02-1998
DOI 10.1590/S0100-72031998000100004
Fetal and placental effects of insulin therapy on pregnancy of diabetic rats were studied. Alloxan was administered intravenously at the dose of 42 mg/kg of body weight. Five experimental groups were formed: control (G1, n=12), non-treated rats with moderate diabetes (G2, n=10), insulin-treated rats with moderate diabetes (G3, n=11),non-treated rats with severe diabetes (G4, n=12) and insulin-treated rats with severe diabetes (G5, n=10). Six hundred and thirty-four newborn rats and placentas wereprocured. The perinatal result of insulin therapy was directly related to the quality of glycemia control. Thus, inadequate control of moderate diabetes produced levels of moderate hyperglycemia, did not interfere with the newborn rats' body weight and decreased the proportion of LGA newborn rats. Adequate control of severe diabetes brought the newborn rat glycemia to normal levels, increased the newborn rats' body weight and decreased the proportion of SGA newborn rats. Adequate insulin therapy for severe diabetes diminished the weight of the placentas, but did not change the placental index.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(1):19-24
05-02-1998
DOI 10.1590/S0100-72031998000100004
Fetal and placental effects of insulin therapy on pregnancy of diabetic rats were studied. Alloxan was administered intravenously at the dose of 42 mg/kg of body weight. Five experimental groups were formed: control (G1, n=12), non-treated rats with moderate diabetes (G2, n=10), insulin-treated rats with moderate diabetes (G3, n=11),non-treated rats with severe diabetes (G4, n=12) and insulin-treated rats with severe diabetes (G5, n=10). Six hundred and thirty-four newborn rats and placentas wereprocured. The perinatal result of insulin therapy was directly related to the quality of glycemia control. Thus, inadequate control of moderate diabetes produced levels of moderate hyperglycemia, did not interfere with the newborn rats' body weight and decreased the proportion of LGA newborn rats. Adequate control of severe diabetes brought the newborn rat glycemia to normal levels, increased the newborn rats' body weight and decreased the proportion of SGA newborn rats. Adequate insulin therapy for severe diabetes diminished the weight of the placentas, but did not change the placental index.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(2):119-119
10-10-2000
DOI 10.1590/S0100-72032000000200014
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(2):119-119
10-10-2000
DOI 10.1590/S0100-72032000000200014
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2012;34(4):143-146
05-11-2012
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2012;34(4):143-146
05-11-2012
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(3):165-167
04-10-1998
DOI 10.1590/S0100-72031998000300008
HELLP syndrome is a severe complication of preeclampsia that increases maternal and perinatal morbidity and mortality. Two cases of recurrent HELLP syndrome are described, maternal death occurring in one of the cases. This study is a warning about the increased risk of HELLP syndrome in the next pregnancy.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 1998;20(3):165-167
04-10-1998
DOI 10.1590/S0100-72031998000300008
HELLP syndrome is a severe complication of preeclampsia that increases maternal and perinatal morbidity and mortality. Two cases of recurrent HELLP syndrome are described, maternal death occurring in one of the cases. This study is a warning about the increased risk of HELLP syndrome in the next pregnancy.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(3):167-173
10-18-2000
DOI 10.1590/S0100-72032000000300008
Purpose: to determine the most efficient clinical and histopathological predictors of complete hydatidiform mole (CHM) after gestational trophoblastic tumors (GTT). Methods: a prospective clinical and histopathological study was performed on all patients with CHM treated at the University Hospital of Botucatu between 1990 and 1998. Preevacuation clinical evaluation allowed the classification of molar pregnancy into high risk and low risk CHM. The author analyzed the clinical predictors of GTT established by Goldstein et al.¹ and by other authors2--10. The histopathological evaluation included the confirmation of CHM diagnosis based on the criteria by Szulman and Surti11 and the understanding of risk factors for GTT by Ayhan et al.8. The clinical and histopathological predictors were correlated with the postmolar GTT. Results: ovarian cysts larger than 6 cm and uterus size larger than 16 cm were the most efficient clinical predictors of GTT in 65 patients with CHM. Trophoblastic proliferation, nuclear atypia, necrosis/hemorrhage, trophoblastic maturation, and the ratio cytotrophoblast to syncytiotrophoblast were not significant predictors of GTT. The correlation between the clinical and histopathological predictors for the development of GTT was not possible, as no histopathological parameter was significant. Conclusion: additional investigations could evaluate other predictors for persistent disease, and its usefulness in a clinical context. The sequential determination of plasmatic beta-hCG remains the only safe predictor for persistent disease.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(3):167-173
10-18-2000
DOI 10.1590/S0100-72032000000300008
Purpose: to determine the most efficient clinical and histopathological predictors of complete hydatidiform mole (CHM) after gestational trophoblastic tumors (GTT). Methods: a prospective clinical and histopathological study was performed on all patients with CHM treated at the University Hospital of Botucatu between 1990 and 1998. Preevacuation clinical evaluation allowed the classification of molar pregnancy into high risk and low risk CHM. The author analyzed the clinical predictors of GTT established by Goldstein et al.¹ and by other authors2--10. The histopathological evaluation included the confirmation of CHM diagnosis based on the criteria by Szulman and Surti11 and the understanding of risk factors for GTT by Ayhan et al.8. The clinical and histopathological predictors were correlated with the postmolar GTT. Results: ovarian cysts larger than 6 cm and uterus size larger than 16 cm were the most efficient clinical predictors of GTT in 65 patients with CHM. Trophoblastic proliferation, nuclear atypia, necrosis/hemorrhage, trophoblastic maturation, and the ratio cytotrophoblast to syncytiotrophoblast were not significant predictors of GTT. The correlation between the clinical and histopathological predictors for the development of GTT was not possible, as no histopathological parameter was significant. Conclusion: additional investigations could evaluate other predictors for persistent disease, and its usefulness in a clinical context. The sequential determination of plasmatic beta-hCG remains the only safe predictor for persistent disease.
, Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(4):211-212
06-19-2019
, Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(4):211-212
06-19-2019
, Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(7):366-371
09-03-2008
DOI 10.1590/S0100-72032008000700008
The application and development of obstetric Dopplervelocimetry provide a basis for the investigation of placental insufficiency and demonstrate the dynamic behavior of fetal circulation during hypoxia. In clinical practice, assessing hemodynamics in three vascular regions involved in pregnancy, namely the uterine, umbilical and middle cerebral arteries, has become routine. Roughly, the cerebral artery expresses the balance between uterine artery oxygen supply and umbilical artery oxygen uptake. Currently, when such balance is unfavorable, the fetal cardiac reserve is investigated by assessing the venous duct. However, determining and interpreting vascular resistance indexes is not an easy task. The starting point is to know the physiopathology of placental insufficiency and fetal circulatory adaptation through which Doppler confirmed its role in the assessment of fetal well-being.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(7):366-371
09-03-2008
DOI 10.1590/S0100-72032008000700008
The application and development of obstetric Dopplervelocimetry provide a basis for the investigation of placental insufficiency and demonstrate the dynamic behavior of fetal circulation during hypoxia. In clinical practice, assessing hemodynamics in three vascular regions involved in pregnancy, namely the uterine, umbilical and middle cerebral arteries, has become routine. Roughly, the cerebral artery expresses the balance between uterine artery oxygen supply and umbilical artery oxygen uptake. Currently, when such balance is unfavorable, the fetal cardiac reserve is investigated by assessing the venous duct. However, determining and interpreting vascular resistance indexes is not an easy task. The starting point is to know the physiopathology of placental insufficiency and fetal circulatory adaptation through which Doppler confirmed its role in the assessment of fetal well-being.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(6):373-380
10-24-2000
DOI 10.1590/S0100-72032000000600008
Purpose: to construct a b-human chorionic gonadotropin (b-hCG) regression curve following complete hydatidiform mole (CHM) of patients with spontaneous remission, and then compare it to that of CHM patients with gestational trophoblastic tumor (GTT). Also, to compare the b-hCG regression curve of CHM patients followed-up at the Service to the regression curve of other authors1-3. Methods: clinical and laboratory evaluations (serum determinations of b-hCG) were performed on admission and during post-molar follow-up of CHM patients treated at the University Hospital of Botucatu between 1990 and 1998. The result of the serial b-hCG determinations was analyzed using log regression curves. The evolution of the b-hCG regression curve was analyzed and compared between cases of CHM with spontaneous remission and with GTT using a log regression curve, with 95% confidence interval. The log regression curve of the spontaneous remission group was compared to those of other authors1,2. Individual log curves for each patient were constructed and classified according to the four curve types (I, II, III, and IV) proposed by Goldstein³ for post-molar follow-up. Results: sixty-one patients received complete post-molar follow-up, 50 (82%) showing spontaneous remission and 11 (18%) developing GTT. In the group of patients with CHM and spontaneous remission, the time to return to normal b-hCG levels after mole emptying was 20 weeks. The patients who developed GTT showed early deviation from normal b-hCG regression curve 4 to 6 weeks after mole emptying. These patients received chemotherapy normally starting during the 9th post-mole emptying week. Conclusions: the regression curve of post-CHM b-hCG in patients with spontaneous remission showed a log-exponential decline similar to that observed by other authors1,2, but different from that of CHM patients who developed GTT. Three types of b-hCG regression curves similar to Goldstein's³, I, II, and IV, were identified, as well as two other different types: V (normal regression) and VI (abnormal regression).
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(6):373-380
10-24-2000
DOI 10.1590/S0100-72032000000600008
Purpose: to construct a b-human chorionic gonadotropin (b-hCG) regression curve following complete hydatidiform mole (CHM) of patients with spontaneous remission, and then compare it to that of CHM patients with gestational trophoblastic tumor (GTT). Also, to compare the b-hCG regression curve of CHM patients followed-up at the Service to the regression curve of other authors1-3. Methods: clinical and laboratory evaluations (serum determinations of b-hCG) were performed on admission and during post-molar follow-up of CHM patients treated at the University Hospital of Botucatu between 1990 and 1998. The result of the serial b-hCG determinations was analyzed using log regression curves. The evolution of the b-hCG regression curve was analyzed and compared between cases of CHM with spontaneous remission and with GTT using a log regression curve, with 95% confidence interval. The log regression curve of the spontaneous remission group was compared to those of other authors1,2. Individual log curves for each patient were constructed and classified according to the four curve types (I, II, III, and IV) proposed by Goldstein³ for post-molar follow-up. Results: sixty-one patients received complete post-molar follow-up, 50 (82%) showing spontaneous remission and 11 (18%) developing GTT. In the group of patients with CHM and spontaneous remission, the time to return to normal b-hCG levels after mole emptying was 20 weeks. The patients who developed GTT showed early deviation from normal b-hCG regression curve 4 to 6 weeks after mole emptying. These patients received chemotherapy normally starting during the 9th post-mole emptying week. Conclusions: the regression curve of post-CHM b-hCG in patients with spontaneous remission showed a log-exponential decline similar to that observed by other authors1,2, but different from that of CHM patients who developed GTT. Three types of b-hCG regression curves similar to Goldstein's³, I, II, and IV, were identified, as well as two other different types: V (normal regression) and VI (abnormal regression).
