Você pesquisou por y - Revista Brasileira de Ginecologia e Obstetrícia
Summary
Rev Bras Ginecol Obstet. 2001;23(7):417-422
DOI 10.1590/S0100-72032001000700002
Purpose: to investigate risk factors associated with accretion in placenta previa (PP) patients. Methods: this was a retrospective case-control study of all the records of patients who delivered between 1986-1998 at Maternidade Escola de Vila Nova Cachoeirinha (São Paulo) with a diagnosis of placenta previa. The groups with and without accretion were compared regarding age, parity, previous history of miscarriage, curettage and cesarean section, type of PP and predominant area of placental attachment. Possible associations between the dependent (accretion) and independent (maternal and placental characteristics) variables were evaluated using the chi² test, univariate and multivariate analyses. Results: reviewing 245 cases of PP, two risk factors were significantly associated with accretion: central placenta previa (odds ratio (OR): 2.93) and two or more previous cesarean sections(OR: 2.54). Based on these data, a predictive model was constructed, according to which a patient with central PP and two more previous cesarean sections has a 44.4% risk for accretion. Conclusions: results of the current study may help obstetricians in the classification of their patients with PP in different risk categories for accretion. This could be useful in preparing for possible delivery complications in those patients considered at a higher risk for accretion.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):417-422
DOI 10.1590/S0100-72032001000700002
Purpose: to investigate risk factors associated with accretion in placenta previa (PP) patients. Methods: this was a retrospective case-control study of all the records of patients who delivered between 1986-1998 at Maternidade Escola de Vila Nova Cachoeirinha (São Paulo) with a diagnosis of placenta previa. The groups with and without accretion were compared regarding age, parity, previous history of miscarriage, curettage and cesarean section, type of PP and predominant area of placental attachment. Possible associations between the dependent (accretion) and independent (maternal and placental characteristics) variables were evaluated using the chi² test, univariate and multivariate analyses. Results: reviewing 245 cases of PP, two risk factors were significantly associated with accretion: central placenta previa (odds ratio (OR): 2.93) and two or more previous cesarean sections(OR: 2.54). Based on these data, a predictive model was constructed, according to which a patient with central PP and two more previous cesarean sections has a 44.4% risk for accretion. Conclusions: results of the current study may help obstetricians in the classification of their patients with PP in different risk categories for accretion. This could be useful in preparing for possible delivery complications in those patients considered at a higher risk for accretion.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):423-427
DOI 10.1590/S0100-72032001000700003
Purpose: to evaluate the impact of birth time interval between twins in relation to the morbidity and mortality of the second newborn twin. Methods: this is a retrospective study of 50 women with twin pregnancy at the `Maternidade Pró-Matre de Vitória' who gave birth to 100 alive newborns through the vaginal canal, weighing each over 500 g and not having any major malformations. The newborns were separated into two groups: G1 (first twin) and G2 (second twin). The following criteria were considered to be indicative of newborn morbidity: asphyxia at birth, characterized by Apgar index lower than 7 in the first minute of life; respiratory distress syndrome detected by clinical and radiological findings, and hospitalization period longer than 4 days. In-hospital mortality was analyzed as well. Cut off was at every 5 minutes, up to 35 minutes, to study the time interval between the twin (deltat) delivery. A time-span (deltat) analysis was also carried out up to 5 minutes: 6-10, 11-15, 16-20, and 21-150 minutes. Results: there were no statistically significant differences between the second twin's morbidity/mortality in relation to the first, considering the aforesaid cutoff and time-span levels. Conclusion: delivery time interval between G1 and G2 did not influence the second twin's morbidity and mortality; however, in the assistance of the second twin's delivery, it is absolutely necessary to individualize the characteristics of each case, not allowing any anxiety to set in through untimely and potentially damaging procedures.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):423-427
DOI 10.1590/S0100-72032001000700003
Purpose: to evaluate the impact of birth time interval between twins in relation to the morbidity and mortality of the second newborn twin. Methods: this is a retrospective study of 50 women with twin pregnancy at the `Maternidade Pró-Matre de Vitória' who gave birth to 100 alive newborns through the vaginal canal, weighing each over 500 g and not having any major malformations. The newborns were separated into two groups: G1 (first twin) and G2 (second twin). The following criteria were considered to be indicative of newborn morbidity: asphyxia at birth, characterized by Apgar index lower than 7 in the first minute of life; respiratory distress syndrome detected by clinical and radiological findings, and hospitalization period longer than 4 days. In-hospital mortality was analyzed as well. Cut off was at every 5 minutes, up to 35 minutes, to study the time interval between the twin (deltat) delivery. A time-span (deltat) analysis was also carried out up to 5 minutes: 6-10, 11-15, 16-20, and 21-150 minutes. Results: there were no statistically significant differences between the second twin's morbidity/mortality in relation to the first, considering the aforesaid cutoff and time-span levels. Conclusion: delivery time interval between G1 and G2 did not influence the second twin's morbidity and mortality; however, in the assistance of the second twin's delivery, it is absolutely necessary to individualize the characteristics of each case, not allowing any anxiety to set in through untimely and potentially damaging procedures.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):431-438
DOI 10.1590/S0100-72032001000700004
Purpose: to evaluate the association between the presence of diastolic notch in the maternal uterine arteries, and the histopathological changes of the uteroplacental vessels. Methods: transversal study of 144 women with single pregnancy interrupted by cesarean section between 27 and 41 weeks. In this sample, 84 had pregnancies complicated by preeclampsia and the other 60 were normal. In this group, Doppler study of both uterine arteries and placental bed biopsy was performed. Results: of the total of 144 patients, 88 patients (61%) had a biopsy fragment that was considered representative of the placental bed. The diastolic notch was present in 40 patients (70%) of the total of cases with inadequate physiologic alterations and absent in 28 patients (90%) of the total of cases with physiologic alterations (p=0.0000). The Doppler study showed 70% sensitivity, 90% specificity, 44% positive predictive value and 97% negative predictive value. The association between bilateral diastolic notch of uterine arteries and acute atherosis in the placental bed was also significant (24 out of 25 cases -- p=0.000). The Doppler study showed 96% sensitivity, 70% specificity, 26% positive predictive value and 99% negative predictive value, while for arteriolosclerosis its results were 80% sensitivity, 55% specificity, 17% positive predictive value and 96% negative predictive value. Conclusions: the diastolic notch in the maternal uterine is a safe indicator of pathological vessel alteration in the placental bed. The adequate trophoblast migration into the myometrium, revealed by physiologic changes, results in the absence of bilateral diastolic notch of the maternal uterine arteries.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):431-438
DOI 10.1590/S0100-72032001000700004
Purpose: to evaluate the association between the presence of diastolic notch in the maternal uterine arteries, and the histopathological changes of the uteroplacental vessels. Methods: transversal study of 144 women with single pregnancy interrupted by cesarean section between 27 and 41 weeks. In this sample, 84 had pregnancies complicated by preeclampsia and the other 60 were normal. In this group, Doppler study of both uterine arteries and placental bed biopsy was performed. Results: of the total of 144 patients, 88 patients (61%) had a biopsy fragment that was considered representative of the placental bed. The diastolic notch was present in 40 patients (70%) of the total of cases with inadequate physiologic alterations and absent in 28 patients (90%) of the total of cases with physiologic alterations (p=0.0000). The Doppler study showed 70% sensitivity, 90% specificity, 44% positive predictive value and 97% negative predictive value. The association between bilateral diastolic notch of uterine arteries and acute atherosis in the placental bed was also significant (24 out of 25 cases -- p=0.000). The Doppler study showed 96% sensitivity, 70% specificity, 26% positive predictive value and 99% negative predictive value, while for arteriolosclerosis its results were 80% sensitivity, 55% specificity, 17% positive predictive value and 96% negative predictive value. Conclusions: the diastolic notch in the maternal uterine is a safe indicator of pathological vessel alteration in the placental bed. The adequate trophoblast migration into the myometrium, revealed by physiologic changes, results in the absence of bilateral diastolic notch of the maternal uterine arteries.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):439-443
DOI 10.1590/S0100-72032001000700005
Purpose: to evaluate the percentage of 45- to 60-year-old women complaining of urinary incontinence, who look for medical treatment, and the factors possibly associated with the decision of visiting the doctor and the reasons for not doing so. Methods: a secondary analysis of a population-based survey on climacterium and menopause in women living in the city of Campinas, São Paulo state, was carried out through a descriptive, exploratory and cross-sectional population study. A total of 456 women between 45 and 60 years of age were selected through a sampling process. The age at menopause and its associated factors were evaluated, as well as the prevalence of climacteric symptoms, the use of medical care, self-perception of the health status, and the sociocultural, sociodemographic and socioeconomic characteristics. Urinary incontinence complaint and the search for medical help due to the presence of symptoms were explored. The data were collected through home interviews, using a structured and pretested questionnaire provided by the International Health Foundation/International Menopause Society and by the North American Menopause Society, and adapted by the authors. The statistical analysis was performed using Fisher's exact test. Results: thirty-five percent of the interviewees reported constant or intermittent stress incontinence, although only 59% of the patients with the complaint sought medical help. Conclusion: the majority of the women presenting urinary incontinence do not complain to the doctor if they are not questioned objectively.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):439-443
DOI 10.1590/S0100-72032001000700005
Purpose: to evaluate the percentage of 45- to 60-year-old women complaining of urinary incontinence, who look for medical treatment, and the factors possibly associated with the decision of visiting the doctor and the reasons for not doing so. Methods: a secondary analysis of a population-based survey on climacterium and menopause in women living in the city of Campinas, São Paulo state, was carried out through a descriptive, exploratory and cross-sectional population study. A total of 456 women between 45 and 60 years of age were selected through a sampling process. The age at menopause and its associated factors were evaluated, as well as the prevalence of climacteric symptoms, the use of medical care, self-perception of the health status, and the sociocultural, sociodemographic and socioeconomic characteristics. Urinary incontinence complaint and the search for medical help due to the presence of symptoms were explored. The data were collected through home interviews, using a structured and pretested questionnaire provided by the International Health Foundation/International Menopause Society and by the North American Menopause Society, and adapted by the authors. The statistical analysis was performed using Fisher's exact test. Results: thirty-five percent of the interviewees reported constant or intermittent stress incontinence, although only 59% of the patients with the complaint sought medical help. Conclusion: the majority of the women presenting urinary incontinence do not complain to the doctor if they are not questioned objectively.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):445-448
DOI 10.1590/S0100-72032001000700006
Purpose: to evaluate the results of 64 hysteroscopic endometrial ablations using a resectoscope in women with abnormal uterine bleeding of benign etiology and nonresponsive to clinical measures and to describe the failures and their associated conditions. Methods: sixty-four patients with abnormal uterine bleeding were submitted to the intervention between April 1994 and February 2000. The mean age was 42.9 years and the mean parity, 2.6 deliveries. Diagnostic hysteroscopy and endometrial biopsy were performed preoperatively. Before surgery, two women received gestrinone, six danazol and 44 GnRH analogue. During the surgery electric cauterization of the fundus uteri and cornual regions was made. Afterwards, with a resectoscope, the endometrium was removed as far as 1 cm above the internal ostium, and as deep as 2 to 3 mm into the myometrium. The uterine distension was obtained with 1.5% glycine and since two years ago with 3% manitol. The average follow-up was 11.5 months. After six months of endometrial ablation, the patients with persistence of symptoms were submitted to hysterectomy. Results: amenorrhea occurred in 31.2% of the patients and hypomenorrhea in 45.3%. The abnormal bleeding was maintained in 23.5%. There was one uterine perforation during the dilatation of the cervix. Results were better in the higher age and parity ranges and in the women who received GnRH analogues (p=0.03). Where the method was not successful there was a statistically significant frequency of submucous myoma (p=0.04) and a nonsignificant increase of secretory endometrium (p=0.12). Conclusions: the method is useful for the management of abnormal uterine bleeding of benign etiology. Previous administration of GnRH analogue is recommended. We suggest a special follow-up for the younger, low parous women, and those with submucous myoma, because they are the group with the poorest results.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):445-448
DOI 10.1590/S0100-72032001000700006
Purpose: to evaluate the results of 64 hysteroscopic endometrial ablations using a resectoscope in women with abnormal uterine bleeding of benign etiology and nonresponsive to clinical measures and to describe the failures and their associated conditions. Methods: sixty-four patients with abnormal uterine bleeding were submitted to the intervention between April 1994 and February 2000. The mean age was 42.9 years and the mean parity, 2.6 deliveries. Diagnostic hysteroscopy and endometrial biopsy were performed preoperatively. Before surgery, two women received gestrinone, six danazol and 44 GnRH analogue. During the surgery electric cauterization of the fundus uteri and cornual regions was made. Afterwards, with a resectoscope, the endometrium was removed as far as 1 cm above the internal ostium, and as deep as 2 to 3 mm into the myometrium. The uterine distension was obtained with 1.5% glycine and since two years ago with 3% manitol. The average follow-up was 11.5 months. After six months of endometrial ablation, the patients with persistence of symptoms were submitted to hysterectomy. Results: amenorrhea occurred in 31.2% of the patients and hypomenorrhea in 45.3%. The abnormal bleeding was maintained in 23.5%. There was one uterine perforation during the dilatation of the cervix. Results were better in the higher age and parity ranges and in the women who received GnRH analogues (p=0.03). Where the method was not successful there was a statistically significant frequency of submucous myoma (p=0.04) and a nonsignificant increase of secretory endometrium (p=0.12). Conclusions: the method is useful for the management of abnormal uterine bleeding of benign etiology. Previous administration of GnRH analogue is recommended. We suggest a special follow-up for the younger, low parous women, and those with submucous myoma, because they are the group with the poorest results.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):451-455
DOI 10.1590/S0100-72032001000700007
Purpose: to evaluate clinical findings, diagnosis and prognosis of three recent hypercalcemic small cell ovarian carcinoma (HSCC) cases treated in our institution. Methods: information concerning epidemiological data and clinical evolution was obtained from the medical record review. Diagnosis was confirmed through histologic evaluation by our Pathology Department. Results: patients were, at diagnosis, 26, 36 and 38 years old. Tumor diameter ranged from 8.8 cm to 23 cm (mean = 14 cm). All patients presented hypercalcemia with total calcium serum levels of 8.9, 10.8 and 16.7 mEq/dL (NV = 8.8 to 10.2) and ionic calcium levels of 1.26, 1.27 and 1.21 mEq/dL respectively (NV = 1.12 to 1.23). All three patients were submitted to surgical treatment and chemotherapy with platinum-based regimens. In two patients the chemotherapy was adjuvant to the primary surgical treatment. Both are alive and disease-free after 2 and 18 months of follow-up. The other patient had initially the diagnosis of granulosa cell tumor, receiving chemotherapy only after tumor recurrence. Now she is alive with tumor 32 months after diagnosis. Conclusion: the main prognostic factors, in the literature and our experience, are the tumor stage at diagnosis, patient's age, presence of hypercalcemia, large cells, tumor diameter, type of surgical treatment and delay of definitive therapy. The ideal treatment of the hypercalcemic small cell ovarian carcinoma remains unknown. Difficulties in determining a standard therapeutic strategy include rarity of the neoplasm, frequently inadequate initial staging, difficulties in histologic diagnosis and multiple therapeutic approaches.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):451-455
DOI 10.1590/S0100-72032001000700007
Purpose: to evaluate clinical findings, diagnosis and prognosis of three recent hypercalcemic small cell ovarian carcinoma (HSCC) cases treated in our institution. Methods: information concerning epidemiological data and clinical evolution was obtained from the medical record review. Diagnosis was confirmed through histologic evaluation by our Pathology Department. Results: patients were, at diagnosis, 26, 36 and 38 years old. Tumor diameter ranged from 8.8 cm to 23 cm (mean = 14 cm). All patients presented hypercalcemia with total calcium serum levels of 8.9, 10.8 and 16.7 mEq/dL (NV = 8.8 to 10.2) and ionic calcium levels of 1.26, 1.27 and 1.21 mEq/dL respectively (NV = 1.12 to 1.23). All three patients were submitted to surgical treatment and chemotherapy with platinum-based regimens. In two patients the chemotherapy was adjuvant to the primary surgical treatment. Both are alive and disease-free after 2 and 18 months of follow-up. The other patient had initially the diagnosis of granulosa cell tumor, receiving chemotherapy only after tumor recurrence. Now she is alive with tumor 32 months after diagnosis. Conclusion: the main prognostic factors, in the literature and our experience, are the tumor stage at diagnosis, patient's age, presence of hypercalcemia, large cells, tumor diameter, type of surgical treatment and delay of definitive therapy. The ideal treatment of the hypercalcemic small cell ovarian carcinoma remains unknown. Difficulties in determining a standard therapeutic strategy include rarity of the neoplasm, frequently inadequate initial staging, difficulties in histologic diagnosis and multiple therapeutic approaches.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):459-462
DOI 10.1590/S0100-72032001000700008
Purpose: to compare the performance in tests between students with and without premenstrual syndrome (PMS), and between students with PMS in and outside the premenstrual period. Methods: the present study had a before-after design (quasi-experimental), to which 40 control patients without PMS were added. A total of 40 students from high school and courses for admission to the University were evaluated using, a standardized questionnaire. The students were divided, according to the scores obtained, into three groups: A) PMS group in the premenstrual period; B) PMS group outside the premenstrual period; C) control group (no PMS). The marks obtained in Physics and Math tests by the groups with and without PMS were analyzed by the Mann-Whitney test. The marks of the group PMS in and outside the premenstrual period were evaluated by the signal test. Results: of 4438 questionnaires applied, 29 from students with PMS and 29 from controls were selected. Comparing the medians of the marks obtained by the students from the PMS group in and outside the premenstrual period, there was no significant difference. There was also no significant difference between the marks of the PMS and control groups. Also, when the scores were evaluated, there was no difference in and outside the period, in the PMS group. Conclusion: PMS was not able to modify significantly the students' marks or scores in this study.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):459-462
DOI 10.1590/S0100-72032001000700008
Purpose: to compare the performance in tests between students with and without premenstrual syndrome (PMS), and between students with PMS in and outside the premenstrual period. Methods: the present study had a before-after design (quasi-experimental), to which 40 control patients without PMS were added. A total of 40 students from high school and courses for admission to the University were evaluated using, a standardized questionnaire. The students were divided, according to the scores obtained, into three groups: A) PMS group in the premenstrual period; B) PMS group outside the premenstrual period; C) control group (no PMS). The marks obtained in Physics and Math tests by the groups with and without PMS were analyzed by the Mann-Whitney test. The marks of the group PMS in and outside the premenstrual period were evaluated by the signal test. Results: of 4438 questionnaires applied, 29 from students with PMS and 29 from controls were selected. Comparing the medians of the marks obtained by the students from the PMS group in and outside the premenstrual period, there was no significant difference. There was also no significant difference between the marks of the PMS and control groups. Also, when the scores were evaluated, there was no difference in and outside the period, in the PMS group. Conclusion: PMS was not able to modify significantly the students' marks or scores in this study.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):465-468
DOI 10.1590/S0100-72032001000700009
The differential diagnosis of hemorrhages during the third trimester of pregnancy due exclusively to obstetrical causes includes: abruptio placentae, low insertion of placenta (placenta previa with subtypes), rupture of the uterus, rupture of the marginal placental sinus and rupture of the vasa previa. The three first diagnoses occur more frequently, their epidemiological factors are better known and therefore, have an easier diagnosis. It is common for obstetricians with long practical experience, as well as for ultrasonographers specialized in fetal medicine and who thoroughly know their theory, not to have ever been exposed to practical obstetrical cases of vasa previa or their rupture. The reason to write this article was the fact that, during the past 32 years, we have been working constantly and uninterruptedly in obstetrical practice and we have seen only one case of rupture of vasa previa during labor, which killed the fetus. Initially, we investigated the issue in obstetrical textbooks having no luck whatsoever, except for a couple of lines on the subject. Carrying out our search in depth, we were able to learn that, even though a rarity, today's literature on the subject suggests that it is possible to have a diagnosis for this morbid entity during gestation, and to solve the problem by making the cesarian section mandatory in these cases, leading to a significant reduction in the actual fetal mortality figures which, according to experts, vary between 33 and 100%.
Summary
Rev Bras Ginecol Obstet. 2001;23(7):465-468
DOI 10.1590/S0100-72032001000700009
The differential diagnosis of hemorrhages during the third trimester of pregnancy due exclusively to obstetrical causes includes: abruptio placentae, low insertion of placenta (placenta previa with subtypes), rupture of the uterus, rupture of the marginal placental sinus and rupture of the vasa previa. The three first diagnoses occur more frequently, their epidemiological factors are better known and therefore, have an easier diagnosis. It is common for obstetricians with long practical experience, as well as for ultrasonographers specialized in fetal medicine and who thoroughly know their theory, not to have ever been exposed to practical obstetrical cases of vasa previa or their rupture. The reason to write this article was the fact that, during the past 32 years, we have been working constantly and uninterruptedly in obstetrical practice and we have seen only one case of rupture of vasa previa during labor, which killed the fetus. Initially, we investigated the issue in obstetrical textbooks having no luck whatsoever, except for a couple of lines on the subject. Carrying out our search in depth, we were able to learn that, even though a rarity, today's literature on the subject suggests that it is possible to have a diagnosis for this morbid entity during gestation, and to solve the problem by making the cesarian section mandatory in these cases, leading to a significant reduction in the actual fetal mortality figures which, according to experts, vary between 33 and 100%.
