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[Antibiotic prophylaxis in obstetric surgery. Experience with a sulbactam-ampicillin combination].

Antibiotic prophylaxis reduces the incidence of infections after some types of surgical interventions; in Obstetrics it can prevent infections in high risk situations. Infections can occur in particular situations, even in cesarean sections (CS) at low risk. The incidence of puerperal endometritis is variable in literature, while the incidence of pelvic or surgical wound infections is 3.8% in elective CS with respect to 7.5% in emergency CS. This study verifies the efficacy of the sulbactam-ampicillin association (Unasyn, Pfizer) in the prophylaxis of all cesarean sections, complicated or not. Unasyn was administrated one hour prior to CS and 8 and 16 hours after CS in 162 patients. Therapy was continued in 8 cases because of high risk for infection. The evaluation of the efficacy of the drug was based on clinical criteria. There were no complications or fever recorded and no toxic or allergic reactions occurred. Antibiotic prophylaxis is recommended for all patients undergoing CS.

Adult

Cesarean section rates in Italy by hospital payment mode: an analysis based on birth certificates.

The study, based on birth certificate data from 1985 through 1987, investigated cesarean section (CS) rates in the Lazio region of Italy and their relationship with mode of hospital care payment. Use of abdominal delivery increased from 22.3% in 1985 to 24.3% in 1987. CS rates were highest (34.7%) in private hospitals. A marked variation in the use of CS was associated with mode of hospital care payment independently from other predictors of abdominal delivery.

Birth Certificates

Effect of morphine-diazepam on signs of anesthesia, awareness, and dreams of patients under N2O for cesarean section.

Morphine (0.2 mg/kg) and diazepam (0.1 mg/kg) were injected IV after delivery of the fetus in 68 parturients undergoing cesarean section (CS). General anesthesia was with thiamylal-N2O-O2 (4:2) and muscle relaxant. Twenty-four to 36 hours postoperatively, 1 patient had recall, 1 had unpleasant dreams, and 2 had pleasant dreams. The incidence of recall and unpleasant dreams was 3.8 percent in elective CS and 0 percent in emergency cesareans. Morphine-diazepam combination caused anterograde and retrograde amnesia. During the cesarean, movement of patient, size of pupils, or changes in blood pressure were not indicative of awareness or dreams. During anesthesia, 33 percent O2 produced adequate oxygenation of mother and fetus.

Amnesia

Cesarean section in Kuwait, 1983 through 1988.

Examination of the cesarean section (CS) rate at the Ministry of Public Health hospitals in Kuwait during 1983 through 1988 revealed a rate of 9.36% and showed no significant trend. The rates in the individual 4 hospitals differed significantly. A significant weak positive correlation between the CS rate and instrumental delivery rates was found. No significant correlation was found between the CS rate and perinatal mortality rate, but a weak positive correlation was found between the CS rate and neonatal mortality rates. Based on the existing health information system in Kuwait, it was not possible to determine whether variations in CS rates were secondary to differences in the risk status of the population subgroups, or were related to physicians' practice style which offers a potential for reduction of the higher rates. Deficiencies identified in the existing health information system included unavailability of information about parity, indications of CS, and whether the procedure was a primary or repeat one. Recommendations to rectify these deficiencies were suggested.

Adolescent

International collaborative effort (ICE) on birth weight, plurality, perinatal, and infant mortality. IV. Differences in obstetrical delivery practice: Norway, Scotland and the United States.

We have carried out a comparative study on differences in operative obstetrical practice during the 1970s and 1980s, in Norway, Scotland and the United States of America. It was based on information from official sources in each country. We compared rates of cesarean section (CS) and operative vaginal delivery according to maternal age, parity and gestational age at delivery, birthweight, fetal presentation, and other characteristics of the child, indications for operative delivery, and hospital size and teaching status. While all three countries had rising CS rates, the Scottish rates, which lay between those of the U.S.A. and Norway, rose more slowly than in the latter. In 1985, the rates were 22.8% in the U.S.A., 13.5% in Scotland and 12.0% in Norway. Use of forceps and vacuum extractor declined in the U.S.A. and Scotland, but increased in Norway. CS rates in mothers aged 35 and over were uniformly high in 1970 and rose relatively little. Specific CS rates for very low birthweight children, breech presentation and twins rose to 30-50% in all three countries with some national trend differences. Rate ratios of operative delivery between large and small hospitals fell from about 2-3 in the 1970s to approximately 1.5 in 1985, least markedly in Scotland. The impact of previous CS as an indication for CS cannot be resolved because of notification and recording differences.

Adult

Delayed neurological adaptation in infants delivered by elective cesarean section and the relation to catecholamine levels.

We have studied the effect of mode of delivery and catecholamine (CA) surge at birth on neurobehaviour 1, 2 and 5 days after birth. Fifteen full-term infants were delivered by elective cesarean section (CS) and 15 full-term control infants were born vaginally. Infants born after elective CS were less excitable and had significantly reduced number of optimal responses during the first 2 days after delivery, compared to the controls. On the 5th day no significant neurological differences were found between the groups. Adrenaline and noradrenaline (NA) in umbilical arterial plasma were analysed in all infants. The mean values of NA were lower in the CS infants as compared to the vaginally delivered infants. Statistically significant correlations were found between low CA levels and poor muscle tone and/or lower grade of excitability in the CS infants. These results suggest that the high CA surge at birth might be of importance for the neurological adaptation after birth.

Adaptation, Physiological

Influence of cesarean section on mother-baby interaction.

Fifty two mother-infant pairs were studied. Twenty six of these were delivered by the normal vaginal route (NVD group) and twenty six by Cesarean section (CS group). The NVD babies were roomed in with their mothers soon after birth whereas the CS babies had a mean separation of 2.8 +/- 1.0 days. The mother baby interaction was evaluated by (a) direct observation of the mother's behaviour during feeding, (b) observation of mother's behaviour during BNBAS (Brazelton Neonatal Behaviour Assessment Scale) on her baby, and (c) interview of the mother with attachment questions. Mothers in the NVD group showed significantly greater affectionate behaviour and encompassing compared to mothers in the CS group. They (NVD mothers) were more often involved in the care-taking activities of their babies and scored significantly higher for the interview implying a greater mother-baby attachment in this group.

Adult

Effect of active management of labor on the incidence of cesarean section for dystocia in nulliparas.

The hypothesis that introduction of a defined policy of managing labor in nulliparas, active management of labor, would reduce the incidence of cesarean section (CS) for dystocia was examined by the introduction of active management at Hermann Hospital, the University of Texas affiliated hospital in Houston. The study was conducted over four consecutive 6-month periods. Observational data were accumulated for the year preceding introduction of active management, which served as the control period. The overall incidence of CS in nulliparas in the two control periods was 23 and 25%, and declined significantly to 20 and 17.7% in the intervention periods. The incidence of CS for dystocia fell significantly from 13 and 15% to 10 and 8.1%, whereas the incidence for other indications was unchanged. There were no significant differences in perinatal outcome judged by incidence of fetal death in labor, neonatal death associated with asphyxia, rate of admission to neonatal care with a diagnosis of asphyxia, or incidence of neonatal seizure. The data suggest that active management of labor reduces the incidence of cesarean section significantly and that these results can be achieved without detriment to mother or child.

Adolescent

A two-dose epidural morphine regimen for cesarean section patients: therapeutic efficacy.

A single dose of epidural morphine (EM) usually produces 24 h of post-cesarean section (CS) analgesia and patients require supplemental analgesics beyond this period. This study assesses if a second dose of EM administered 24 h after the first one offers superior therapeutic efficacy compared to conventional analgesics. Patients (n = 100) were randomized to receive one or two doses of epidural morphine. In all patients, EM 5 mg was administered after delivery. After 24 h patients received epidurally either normal saline (n = 50, Group 1) or morphine 5 mg (n = 50, Group 2). An independent observer used a visual analogue scale to assess nausea, itching, and analgesia 24 h after each injection. Results were expressed as mean +/- 1 s.e. mean and analyzed using nonparametric methods. The second dose of EM produced a significantly lower incidence and severity of nausea and itching than did the first dose (P < 0.01) in Group 2 with no difference in analgesia. The second day postoperative pain score in Group 1 was significantly greater than the first day score in the same group, and significantly greater than the severity score in Group 2. Only 36% of patients receiving two doses of EM required supplemental analgesics beyond 48 h compared to 76% of those receiving one dose (P < 0.01). No serious complications were noted. In summary, the use of a second dose of EM for post-CS analgesia produces better analgesia and reduces the need for oral analgesics. The second dose produced fewer side-effects, probably due to acute tolerance to morphine.

Adult

Epidural anesthesia with the Trendelenburg position for cesarean section with or without a cardiac surgical procedure in patients with severe mitral stenosis: a hemodynamic study.

The hemodynamic effects of epidural anesthesia (EA) with the Trendelenburg position were studied in seven patients with severe mitral stenosis undergoing emergency cesarean section (CS) because of hemodynamic deterioration. In six patients, the CS was immediately followed by an open mitral commissurotomy under general anesthesia, whereas in one patient, the CS was performed alone. A significant reduction in heart rate (120 +/- 5 to 83 +/- 7 beats/min; P less than 0.001) was observed after induction of EA. Mean arterial pressure (MAP) decreased (78 +/- 9 to 55 +/- 5 mm Hg; P less than 0.01) simultaneously with reduction of the pulmonary capillary wedge pressure (PCWP) (37 +/- 4 to 15 +/- 4 mm Hg, P less than 0.001) and cardiac index (CI) (2.4 +/- 0.3 to 1.8 +/- 0.32 L/min/m2; P less than 0.001). However, PCWP could be adjusted by selecting the appropriate angle of the Trendelenburg position. When the PCWP was approximately 25 mm Hg, MAP and Cl increased to 72 +/- 7 mm Hg and 3.1 +/- 0.4 L/min/m2, respectively, and a satisfactory hemodynamic state was achieved. Systemic vascular resistance decreased after induction of EA (2,250 +/- 250 to 1,750 +/- 450 dyne.s.cm-5; P less than 0.001), and remained unchanged during the perioperative period. It is concluded that the combination of epidural anesthesia with tilting of the table is a safe method for urgent CS in pregnant women with critical mitral stenosis in whom termination of pregnancy is indicated because of hemodynamic deterioration.

Adult

Cesarean section and delayed contact: effect on baby's behaviour.

Fifty two babies were assessed by the Brazelton Neonatal Behaviour Assessment Scale (BNBAS) first at 24-48 hours after birth and next at 28 days of age. Of these 26 belonged to the normal vaginal delivery (NVD) group where the babies were roomed in with their mothers immediately after birth. The other 26 were delivered by Cesarean Section (CS) and had a mean separation of 2.8 +/- 1.0 day from their mothers. Babies in the NVD group performed better for the interactive processes at both the initial and follow-up assessment. They were more active initially and on follow up. Although no differences were obtained at the initial assessment for organisational processes (physiological response to stress and state control) the follow up revealed that the NVD babies smiled more, cried less and were less irritable.

Behavior

A comparative randomized study of oral prostaglandin E2 (PGE2) tablets and intravenous oxytocin in induction of labor in patients with premature rupture of membranes before 37 weeks of pregnancy.

In a randomized prospective study, we compared the use of intravenous oxytocin with oral PGE2 tablets for stimulation of labor in cases of premature rupture of membranes (PROM) before term, where the onset of spontaneous labor did not occur within the first 3 h. This study represents the first of its kind in which oral PGE2 and oxytocin have been directly compared as oxytocic agents for PROM before 37 weeks. Labor induction was successful in 96% of patients in the PGE2 group compared with 84% in the oxytocin group. The incidence of cesarean section (CS) was 5% and 16% in the PGE2 and the oxytocin groups, respectively. While 10% of the CS were performed due to fetal bradycardia in the oxytocin group, none was performed in the PGE2 group despite the fact that the latter group had relatively lower Bishop scores. The data presented indicate that oral PGE2 is safe and effective in initiating active labor in healthy women at pre-term with PROM. Thus we recommend its use to induce labor 3 h after rupture of membranes before 37 weeks gestation.

Administration, Oral

Influence of elective cesarean section and breech delivery on neonatal neurological condition.

Fifty-three infants born after elective cesarean section (CS), and 28 infants born vaginally in breech presentation were compared with 45 full-term controls. A quantitative neurological assessment consisting of 31 items was performed on days 1, 2 and 5 after birth. A tonus score, an excitability score and the number of optimal responses were calculated. A follow-up examination was done at 6 months of age, with a standardized neurological and developmental examination. The results showed that infants born after elective CS in both vertex and breech presentation had significantly reduced number of optimal responses during the first five days after delivery, compared to controls. They were more hypotonic and less excitable than the control infants during the first 2 days. There were no significant differences in neurological results between infants born after CS with general or epidural anaesthesia. The infants born in vaginal breech presentation showed no differences neurologically as compared to the controls on the first day. On days 2 and 5, however, they were less excitable and showed a reduced number of optimal responses. There were few differences in neurological condition between the infants born after elective CS and the infants born vaginally in breech presentation. Growth, psychomotor development and neurological status at 6 months did not differ significantly between the three groups. Our findings indicate that infants born after elective CS and vaginal breech presentation have a delayed neurological adaptation during their first days of life. These differences did not affect the physical well-being of the infants, which showed normal growth, neurology and development at the follow-up at 6 months of age.

Apgar Score

[Studies on catecholamine and its metabolites in the evaluation of fetal distress].

To determine the usefulness of catecholamine (CA) levels in the evaluation of fetal distress during delivery, norepinephrine (NE), its intermediate metabolite 3,4-dihydroxyphenylethyleneglycol (DOPEG), and 3,4-dihydroxyphenylacetic acid (DOPAC), which is the main intermediate metabolite of dopamine (DA), were simultaneously measured in umbilical arterial and venous blood (UA, UV) and in maternal venous blood (MV). The correlations of these concentrations with blood pH and the 1-min. Apgar score were examined. Of the 124 subjects studied, 24 had elective cesarean section (CS), and 100 had vaginal delivery (VD), which was uncomplicated in 84 (ND) and complicated by fetal distress in 16 (FD). The results were as follows: 1. In the ND, FD and CS groups, UA-NE and UA-DOPEG levels were high, as follows: FD group greater than ND group greater than CS group and FD group greater than ND, CS group, respectively. 2. There were no significant differences between DOPAC levels in UA, UV and MV plasma and in FD, ND and CS groups. 3. In the ND group, higher UA-NE values were found in the group at UA-pH less than 7.20 than in those at UA-pH greater than or equal to 7.20, but UA-DOPEG values did not vary significantly with UA-pH. 4. In the ND group, higher UA-DOPEG values were found with Apgar score less than or equal to 7 than with Apgar score greater than or equal to 8, but UA-NE values did not vary significantly with the Apgar score.(ABSTRACT TRUNCATED AT 250 WORDS)

3,4-Dihydroxyphenylacetic Acid

Exploring birth options after three or four cesarean sections in Poland: maternal and neonatal outcomes following vaginal vs repeat surgical deliveries.

OBJECTIVES: The study aimed to analyze maternal and neonatal outcomes of women with a history of three or four caesarean sections (CS) and to evaluate the feasibility and safety of vaginal birth after multiple caesarean sections (VBAC &#x2265; 3) in Polish clinical practice. MATERIAL AND METHODS: A retrospective analysis was conducted on medical records of 186 women with three or four prior CS who delivered at St. Sophia Specialist Hospital in Warsaw between 2017 and 2024. Data on delivery mode, obstetric management, complications, and neonatal outcomes were assessed. Multivariate logistic regression was applied to identify factors associated with successful VBAC. RESULTS: Of the study group, 62 women attempted trial of labour after caesarean (TOLAC), resulting in 32 successful vaginal births (success rate 53.2%). 124 women chose Elective CS. Logistic regression showed that prior vaginal birth (OR = 20.34; p = 0.008) and the use of epidural anaesthesia (OR = 22.88; p = 0.006) significantly increased the likelihood of successful VBAC. Spontaneous onset of labour showed a positive but non-significant trend (OR = 2.52; p = 0.230). The model demonstrated a classification accuracy of 77.4% and a good overall fit (Nagelkerke R&#xb2; = 0.456). Uterine rupture occurred in three cases (4.8%), while no maternal or neonatal deaths were reported. CONCLUSIONS: Vaginal birth after three or more CS may be a viable option for carefully selected women, provided it is offered in tertiary centers with immediate surgical readiness. Key predictors of success include prior vaginal birth and epidural anaesthesia. Further large-scale studies are needed to refine guidelines and inform clinical practice in this high-risk group.

Humans

Maternal and fetal plasma levels of free corticosteroids in pathological deliveries.

Does intrauterine acidosis induce increased steroid secretion? The concentration of free steroids (CS) increases in both fetal and maternal plasma during labor and delivery. Fetal levels are higher after vaginal than after cesarean section. These differences may indicate an important role of the fetal adrenal gland in the induction of labor or they may reflect merely the fetal response to the stress of delivery. During incrased intrauterine stress steroid secretion is increased as shown here. We examined 41 mothers and their infants during pathological labor. Pathology was assessed from fetal acidosis and/or a clinically obstetric disease of the mother or fetus. The 41 cases included 9 cesarean sections, 8 forceps deliveries; 24 spontaneous deliveries of which 7 were premature. At the time of delivery the pH and CS level were determined in maternal and umbilical vessels in all cases. During spontaneous labor blood samples were also taken during the different stages of labour. A competetive protein binding assay with transcortin without fractionation of the steroids was used. Progesteron was determined by the same assay. The level of this hormone, however, remains unchanged and hence any changes reflect changes in CS. The levels of CS were correlated with the pH values and compared to previously obtained normal values. During pathological deliveries CS levels in both mother and fetus are normal as long as there is no acidosis (Fig. 1). If acidosis is present the CS level in the umbilical artery is usually higher than normal. In 13 out of 18 vaginal deliveries the CS level was above normal, in the other 5 at the upper limit of normal (Fig. 1 and 2). At the same time the a--v difference becomes smaller and sometimes even negative. No changes were noted in maternal and umbilical venous blood (Tab. I and II). Similar dependence on the pH was found for cesarean sections (Tab. III). In premature deliveries without acidosis in the umbilical artery the CS levels were lower in both mother and fetus (Tab. I). These results indicate that the fetal adrenal gland reacts to acidosis, i.e., intrauterine stress, with increased corticosteroid secretion. This rise depends on the pH of fetal blood and not on the type of delivery (Fig. 3).

Acidosis

[Lipid composition of the myometrium during labor].

Lipids represent one of the basic components of each cellular and subcellular membrane of the myometrium and their fluidity has a strong influence upon membrane function. Human myometrium was obtained at cesarean sections. Lipids were separated by one-dimensional thin layer chromatography. The chromatoplates were determined on the densitometer Shimadzu CS 930. Lipid profile of the myometrium was studied before the 37th week of pregnancy, at term without contractile activity, further during at term labor with normal contractile activity and at failure of myometrial contractility. Analysis of the obtained data showed changes in lipid fluidity, namely a decrease before the 37th week of pregnancy and at failure of myometrial contractions during at term labor. The decrease of fluidity was caused by a higher content of total cholesterol and a lower content of total phospholipids in the myometrium.

Female

Trend of caesarean section in Italy: an examination of national data 1980-1985.

An Italian nationwide presentation of data concerning the proportion of births by caesarean section (CS) for the period 1980-1985 is presented here. A constant increase in CS was noted, from 11.2% in 1980 to 15.8% in 1985. The increase was observed in all regions while higher rates were noted in northern and central Italy. CS rates are higher in older age groups, in pregnancies from 29th to 35th week of gestation for high and low birthweights and malpresentations. Ecological associations revealed that CS is positively related to economic development and negatively to perinatal and stillbirth rates.

Adult