首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 51 毫秒
1.
We compared 302 vacuum extractions and 205 forceps deliveries at Fairfield District Hospital, Sydney, over a period of 30 months. Age, parity, gestational age, length of labour and birth-weight were not significantly different between the 2 groups. Significantly less analgesia was required for mothers whose babies were delivered by vacuum extraction compared with mothers with forceps deliveries (p less than 0.01). Average blood loss was slightly higher during forceps delivery as compared with vacuum extraction and there was a significantly higher incidence of postpartum haemorrhage after forceps delivery (p less than 0.05). More babies were jaundiced after vacuum extraction and more required phototherapy, but the differences were slight and were not statistically significant. We conclude that vacuum extraction is a useful and safe alternative to forceps delivery in a district hospital setting.  相似文献   

2.
BACKGROUND: To identify the risk factors for failed instrumental vaginal delivery, and to compare maternal and neonatal morbidity associated with failed individual and sequential instruments used. DESIGN: A retrospective case-control study. METHODS: From January 1995 to June 2001, there were 39 508 live births at >37 weeks' gestation of which 2628 (6.7%) instrumental vaginal deliveries were performed, 1723 (4.4%) were vacuum extractions and 905 (2.3%) were forceps. A total of 155/2628 (5.9%) patients who had failed instrumental delivery were matched with 204 patients who had successful instrumental delivery. The patients were divided into five groups. Group I (n = 129) had failed vacuum extraction, group II (n = 13) failed forceps, group III (n = 13) failed both (i.e. failed attempt at both instruments sequentially), group IV (n = 138) had successful vacuum extraction and group V (n = 66) successful forceps. RESULTS: The failure rate for vacuum extractions 129/1723 (7.5%) was significantly higher than that for forceps 13/905 (1.4%) [odds ratio (OR) = 5.6, 95% CI 3-10.3]. There were no significant differences in all maternal complications (25.5% vs. 26.6%) between vacuum (groups I and IV) and forceps (groups II and V) assisted deliveries. There were more maternal complications in group III (46.2%) than in groups I (35.7%), II (23.1%) and V (27.3%) that did not reach statistical significance but were significantly higher than in group IV (15.9%, OR = 4.5, 95% CI 1.2-16.9). There was a significantly higher rate of all fetal complications in group III [11/13 (84.6%)] than in groups I [69/129 (53.5%)], II [7/13 (53.8%)], IV [35/138 (25.4%)] and V [22/66 (33.3%)] (OR = 4.8, 95% CI 0.9-19.9). CONCLUSIONS: Applying the instrument at < or =0 fetal station, nulliparous women, history of previous cesarean section and fetal head other than occipitoanterior position were risk factors for failed instrumental delivery. Sequential use of instrumental delivery carries a significantly higher neonatal morbidity than when a single instrument is used.  相似文献   

3.
OBJECTIVE: A depressed skull fracture is an inward buckling of the calvarial bones and is referred to as a "ping-pong" fracture. This study aimed to look at differences between "spontaneous" and "instrument-associated" depressed skull fractures. STUDY DESIGN: This retrospective, case-control analysis included every neonate who was admitted with a depressed skull fracture between 1990 and 2000. Cases after a spontaneous vaginal delivery, elective cesarean delivery, or cesarean delivery that was performed during labor without previous instrument use were classified as "spontaneous" (n = 18 cases). Cases after a delivery in which forceps or a vacuum cup had been used either successfully or unsuccessfully were classified as "instrument-associated" (n = 50 cases). Continuous data were analyzed with 2-tailed unpaired t tests; chi 2 analysis was used for nominal data. A probability value of <.05 was considered statistically significant. RESULTS: Fifty depressed skull fractures were associated with an instrument delivery, and 18 depressed skull fractures were classified as "spontaneous." The only obstetric parameter that differed significantly between the 2 groups was the length of the active phase. Among the 68 neonates, 15 neonates underwent prolonged second stage, forceps or manual head rotation, or forceps use during elective cesarean delivery. All "instrument-associated" cases were caused by forceps application or sequential instrument use; depressed skull fractures never occurred after isolated vacuum extraction. Every type of forceps was involved. Intracranial lesions were significantly more frequent in the instrument-associated group (30% vs 0%; P = .02). Two infants sustained persistent severe motor disabilities. CONCLUSION: Depressed skull fractures occur in the setting of spontaneous and operative deliveries, although the incidence is higher in the latter case. Depressed skull fractures that are associated with instrumental deliveries are significantly more likely to be associated with intracranial lesions. Persistent disabilities are rare.  相似文献   

4.
BACKGROUND: Forceps delivery has become rare in Finland since the introduction of the vacuum extractor. Our aim was to survey the number of forceps deliveries in Finland and analyze our own material of 130 forceps deliveries during a 15-year period between 1984 and 1998. During this period there were 17,887 deliveries at Vaasa Central Hospital. METHODS: A retrospective study of 130 forceps deliveries and 11 trial forceps cases, which subsequently resulted in a cesarean section. RESULTS: There was no maternal or neonatal mortality. In 39 cases a cesarean section could be avoided by use of forceps after a failed vacuum extraction. Only in one case was maternal morbidity regarded as serious. There was no serious neonatal morbidity. Anal sphincter ruptures occurred in three cases (2.3%). All the women in the trial forceps group were nulliparous, in 73% of these the fetus was in a persistent occipito-posterior position. Failed vacuum extraction and trial forceps did not significantly influence neonatal outcome. CONCLUSIONS: Forceps delivery appears to be a safe alternative in our setting.  相似文献   

5.
The use of vacuum extraction and forceps application at delivery were compared in 2 series of 100 patients each. The indications for both procedures are generally the same. There were 12 cases of incompletely dilated cervix, 8 cases in which the fetal head was high in the cavity, and 37 cases of unrotated heads in the vacuum extraction group. Of the 100 vacuum extraction cases, 80 were successful on the 1st attempt, 11 on the 2nd attempt, and 7 on the 3rd attempt, for a total of 96 successful vacuum extractions. All of the 100 forceps extraction deliveries were successful. However, there were 5 (adjusted) perinatal deaths in the forceps extraction group and only 1 in the vacuum extraction group. A major advantage of vacuum extraction is a wider applicability to maternal conditions. Vacuum extraction is more likely to reduce the incidence of a caesarean section.  相似文献   

6.
OBJECTIVES: To determine whether there is a difference in maternal and neonatal outcomes if a sequential operative vaginal or cesarean delivery follows failed vacuum delivery. STUDY DESIGN: A cross sectional study. We have analyzed maternal and neonatal outcomes of 215 vacuum extractions (group 1), 106 forceps assisted deliveries (group 2), 28 deliveries in which failed vacuum extraction were followed by forceps delivery (group 3) and 22 deliveries in which failed vacuum extraction were followed by cesarean delivery (group 4). RESULTS: Compared to other groups, patients in group 4 had significantly more post partum anemia, meconium stained amniotic fluid and hospital stay (both maternal and neonatal) as well as lower pH. Apgar scores were similar in groups 3 and 4. Incidence of respiratory distress syndrome, cephalhematoma and jaundice were similar in neonates of all groups. CONCLUSIONS: If an attempted vacuum delivery has failed, the risk of adverse neonatal outcome is increased with either subsequent forceps or cesarean delivery. It should remain in the judgment of the attending obstetrician to choose the method most suitable under the given circumstances.  相似文献   

7.
Use of the vacuum for operative vaginal deliveries has become more favorable with fewer obstetricians and family practitioners trained in the use of forceps. When compared with forcep-assisted deliveries, the vacuum has been associated with a higher incidence of subgaleal hemorrhage (SGH), cephalhematomas, skull and clavicular fractures, Erb's Palsy, intracranial hemorrhage and need for ICN admission. We report the case of an infant who developed a large SGH with midline dural tear and herniation of the medial aspect of the parietal lobes bilaterally in association with a vacuum extraction (VE) delivery. Counseling of families prior to instrumented delivery as to the potential complications, adherence to recommendations for abandoning operative vaginal delivery in favor of a cesarean section and close observation of those infants delivered by VE is warranted.  相似文献   

8.
Fetal injury associated with cesarean delivery   总被引:5,自引:0,他引:5  
OBJECTIVE: To describe the incidence and type of fetal injury identified in women undergoing cesarean delivery. METHODS: Between January 1, 1999, and December 31, 2000, a prospective cohort study of all cesarean deliveries was conducted at 13 university centers. Information regarding maternal and infant outcomes was abstracted directly from hospital charts. RESULTS: A total of 37,110 cesarean deliveries were included in the registry, and 418 (1.1%) had an identified fetal injury. The most common injury was skin laceration (n = 272, 0.7%). Other injuries included cephalohematoma (n = 88), clavicular fracture (n = 11), brachial plexus (n = 9), skull fracture (n = 6), and facial nerve palsy (n = 11). Among primary cesarean deliveries, deliveries with a failed forceps or vacuum attempt had the highest rate of injuries (6.9%). In women with a prior cesarean delivery, the highest rate of injury also occurred in the unsuccessful trial of forceps or vacuum (1.7%), and the lowest rate occurred in the elective repeat cesarean group (0.5%). The type of uterine incision was associated with fetal injury, 3.4% "T" or "J" incision, 1.4% for vertical incision, and 1.1% for a low transverse (P = .003), as was a skin incision-to-delivery time of 3 minutes or less. Fetal injury did not vary in frequency with the type of skin incision, preterm delivery, maternal body mass index, or infant birth weight greater than 4,000 g. CONCLUSION: Fetal injuries complicate 1.1% of cesarean deliveries. The frequency of fetal injury at cesarean delivery varies with the indication for surgery as well as with the duration of the skin incision-to-delivery interval and the type of uterine incision. LEVEL OF EVIDENCE: II-3.  相似文献   

9.
In a cohort analysis of Silastic vacuum extractor deliveries, 65% were completed with the vacuum extractor alone, 24% with outlet forceps, 3% with midforceps, and 7% with cesarean section (vacuum extractor-cesarean). Control groups were formed by using the next sequential forceps delivery, spontaneous vaginal delivery, and every second cesarean section after a trial of labor. The infants were examined using a neurobehavioral scale, an encephalopathy assessment, cranial ultrasound, and indirect ophthalmoscopy. In the combined vacuum extractor and forceps delivery subgroup (vacuum extractor-forceps), all but 3% were converted from a high mid-forceps delivery to outlet forceps by the initial vacuum extractor procedure, thus eliminating many difficult midforceps deliveries. The study yielded no significant difference in maternal morbidity between vacuum extractor-forceps and forceps delivery, no difference in vaginal trauma for vacuum extractor-cesarean versus vacuum extractor delivery, and no greater hospital stay, infection rate, or need for transfusion for either vacuum extractor-forceps versus forceps delivery or vacuum extractor-cesarean versus cesarean delivery. Neonatal morbidity did not differ between successful and unsuccessful trial of vacuum extractor, except for an increased frequency of retinal hemorrhage. The frequency of scalp trauma, including cephalohematoma, did not differ between vacuum extractor-forceps and forceps delivery, or between vacuum extractor-cesarean and vacuum extractor delivery. For vacuum extractor-forceps versus forceps delivery and vacuum extractor-cesarean versus cesarean section, there were no significant differences in neurobehavioral or encephalopathy scores, or in the frequency of neonatal jaundice, facial palsy, anemia, fractures, or mortality.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

10.
Sixteen women delivered by forceps and 20 women delivered by vacuum extraction (VE) owing to secondary uterine inertia were compared with a control group of 11 women who gave birth spontaneously. The cord arterial pH was lower in the VE group than in the forceps and control groups. Base deficit in both arterial and venous cord blood was greater in the VE group than in the forceps group, probably owing to the longer application and extraction times in VE than in forceps delivery. The incidence of retinal hemorrhage did not differ between the forceps and VE groups. The incidence of cephalhematomata was greater among VE infants than in the forceps and control groups. All infants were examined on the 1st and 5th day by standardized neurological and behavioural examination. There were no significant differences in neurological status between the forceps and VE groups. Thus, in low extraction with no signs of fetal asphyxia, either method can be used with safety if the obstetrician is familiar with both methods of operative vaginal delivery.  相似文献   

11.
Routine use of a partograph is associated with a reduction in the use of forceps, but is not associated with a reduction in the use of vacuum extraction (Level A). Early artificial rupture of the membranes, associated with oxytocin perfusion, does not reduce the number of operative vaginal deliveries (Level A), but does increase the rate of fetal heart rate abnormalities (Level B). Early correction of lack of progress in dilatation by oxytocin perfusion can reduce the number of operative vaginal deliveries (Level B). The use of low-concentration epidural infusions of bupivacaine potentiated by morphinomimetics reduces the number of operative interventions compared with larger doses (Level A). Placement of an epidural before 3-cm dilatation does not increase the number of operative vaginal deliveries (Level A).Posterior positions of the fetus result in more operative vaginal deliveries (Level B). Manual rotation of the fetus from a posterior position to an anterior position may reduce the number of operative deliveries (Level C). Walking during labour is not associated with a reduction in the number of operative vaginal deliveries (Level A). Continuous support of the parturient by a midwife or partner/family member during labour reduces the number of operative vaginal deliveries (Level A). Under epidural analgesia, delayed pushing (2 h after full dilatation) reduces the number of difficult operative vaginal deliveries (Level A). Ultrasound is recommended if there is any clinical doubt about the presentation of the fetus (Level B).The available scientific data are insufficient to contra-indicate attempted midoperative delivery (professional consensus). The duration of the operative intervention is slightly shorter with forceps than with a vacuum extractor (Level C). Nonetheless, the urgency of operative delivery is not a reason to choose one instrument over another (professional consensus). The cup-shaped vacuum extractor seems to be the instrument of choice for operative deliveries of fetuses in a cephalic transverse position, and may also be preferred for fetuses in a posterior position (professional consensus). Vacuum extraction deliveries fail more often than forceps deliveries (Level B).Overall, immediate maternal complications are more common for forceps deliveries than vacuum extraction deliveries (Level B). Compared with forceps, operative vaginal delivery using a vacuum extractor appears to reduce the number of episiotomies (Level B), first- and second-degree perineal lesions, and damage to the anal sphincter (Level B). Among the long-term complications, the rate of urinary incontinence is similar following forceps, vacuum extraction and spontaneous vaginal deliveries (Level B). Anal incontinence is more common following forceps delivery (Level B). Persistent anal incontinence has a similar prevalence regardless of the mode of delivery (caesarean or vaginal, instrumental or non-instrumental), suggesting the involvement of other factors (Level B). Rates of immediate neonatal mortality and morbidity are similar for forceps and vacuum extraction deliveries (Level B). It appears that difficult instrumental delivery may lead to psychological sequelae that may result in a decision not to have more children (Level C). The rates of neonatal convulsions, intracranial haemorrhage and jaundice do not differ between forceps and vacuum extraction deliveries (Levels B and C).Rapid sequence induction with a Sellick manoeuvre (pressure to the cricoid cartilage) and tracheal intubation with a balloon catheter is recommended for any general anaesthesia (Level B).Training must ensure that obstetricians can identify indications and contra-indications, choose the appropriate instrument, use the instruments correctly, and know the principles of quality control applied to operative vaginal delivery. Nowadays, traditional training can be accompanied by simulations. Training should be individualized and extended for some students.  相似文献   

12.
A retrospective study over a 3-year period compared maternal and neonatal outcomes after birth by Kielland's forceps with those by ventouse when there was deep transverse arrest of head. Of the 259 women, 117 were delivered with Kielland's forceps and 142 were delivered with the ventouse. Of the Kielland's forceps deliveries, 15% were performed by a specialist, compared with 41% of the vacuum extractions. There were no differences in maternal morbidity overall, but when groups of operators were compared maternal complications were more frequent in the forceps group with the less experienced operators. There was little early neonatal morbidity (as judged by Apgar score, intubation, admission to the special care baby unit, jaundice and abnormal neurological behaviour) but cephalhaematoma occurred significantly more often in babies born by the ventouse than by Kielland's forceps. There were no perinatal deaths.  相似文献   

13.
Summary. A retrospective study over a 3-year period compared maternal and neonatal outcomes after birth by Kielland's forceps with those by ventouse when there was deep transverse arrest of head. Of the 259 women, 117 were delivered with Kielland's forceps and 142 were delivered with the ventouse. Of the Kielland's forceps deliveries, 15% were performed by a specialist, compared with 41% of the vacuum extractions. There were no differences in maternal morbidity overall, but when groups of operators were compared maternal complications were more frequent in the forceps group with the less experienced operators. There was little early neonatal morbidity (as judged by Apgar score, intubation, admission to the special care baby unit, jaundice and abnormal neurological behaviour) but cephalhaematoma occurred significantly more often in babies born by the ventouse than by Kielland's forceps. There were no perinatal deaths.  相似文献   

14.
Summary. The influence of stress and related factors on umbilical-cord vessel progesterone concentrations have been investigated in 150 vaginal deliveries. Cord vein progesterone levels were greater in breech deliveries than in forceps deliveries and in vaginal deliveries by maternal effort alone. Within the forceps group there was no difference in cord vessel progesterone concentrations between lift-out, mid-cavity or rotational forceps deliveries. Levels of progesterone were significantly greater in forceps deliveries where the infant was clinically distressed (P<0.01). Similarly, within the normal group progesterone levels were greater in a stressed group of infants, where cord vein pH, artery pH, Apgar score at 1 min or birthweight fell below the 10th centile for the study group. No differences in plasma progesterone concentration were found with labour commencing spontaneously or by induction, nor did the sex of the infant appear to influence this hormone. Progesterone levels were higher in samples from primiparae than in those from multiparae due to a small number of primiparae who had excessively long labours and high progesterone concentrations. There was, however, no strong statistical correlation between length of labour and progesterone concentrations.  相似文献   

15.
Abstract

Objective: To assess trends over time of operative vaginal delivery and compare delivery-related morbidity between vacuum delivery, forceps delivery, or combined use of both in California.

Methods: California ICD-9 discharge data from 2001 to 2007 were used to identify cases of forceps and vacuum delivery.

Results: There was a decline in all operative delivery types (9.0% in 2001 to 7.6% in 2007), with the decline in the use of forceps most pronounced (7.26/1000 deliveries in 2001 to 3.85/1000 in 2007). Higher rates of third/fourth degree lacerations, postpartum hemorrhage, manual extraction of placenta, pelvic hematoma requiring evacuation, cervical laceration repair, and thromboembolic events were noted in forceps compared to vacuum deliveries. When both instruments were used, rates of third/fourth degree lacerations and postpartum hemorrhage were increased. Operative delivery failure was highest in combined use compared to forceps or vacuum alone.

Conclusion: The incidence of operative vaginal delivery in California is declining, with decreasing use of forceps most notable. Several maternal morbidities are increased in forceps and combined deliveries compared to vacuum deliveries. There is a significantly higher risk of failure when two operative delivery methods are employed. These findings may be contributing to the declining willingness of providers to perform operative vaginal delivery.  相似文献   

16.
A prospective study was undertaken to determine the safety of the Silastic vacuum extractor. Between November 1982 and July 1983, a cohort of 84 successful vacuum extractor deliveries was examined, using the next sequential forceps delivery and spontaneous vaginal delivery as controls. In addition to routine neonatal morbidity measures, Scanlon early neonatal neurobehavioral scale and a modified Sarnat encephalopathy staging examination were used to critically assess neurologic functioning; a cranial ultrasound scan was performed to look for intracerebral hemorrhage, and an indirect ophthalmologic examination was done to assess the incidence of retinal hemorrhage. The study yielded no significant increase in maternal vaginal trauma for vacuum extractor versus spontaneous vaginal delivery, but there was a significantly greater incidence for forceps delivery (60%) versus vacuum extractor (25%) and more associated blood loss for forceps delivery (P less than .01). There was no significant increase in neonatal morbidity for vacuum extractor compared with forceps delivery nor in serious morbidity compared with spontaneous vaginal delivery. Specifically, for vacuum extractor versus forceps delivery there was no difference in one- and five-minute Apgar scores, extent of resuscitation, cosmetic injury, jaundice, mean neonatal intensive care unit stay, or incidence of retinal hemorrhage. Notably, there was no mortality related to delivery method, but there were two unrelated deaths. There were no cases of intraventricular or subgaleal hemorrhage on clinical or ultrasound examination, but one stillborn infant, who succumbed to a generalized coagulation defect, had a subarachnoid hemorrhage. Finally, there was no significant difference in Sarnat encephalopathy staging or Scanlon neurobehavioral assessment between spontaneous vaginal, forceps, and vacuum extractor deliveries.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

17.
Electronic measurements of compression, using a hydrostatic technique, were made during 44 normal deliveries and compared with the values obtained during 32 deliveries using Kielland's forceps, 21 using Neville Barnes' forceps, 48 using Moolgaoker's adjustable forceps, and 26 using Malmstrom's vacuum extractor. Electronic recordings of traction, using strain gauges, were made simultaneously during all the instrumental deliveries except those with Kielland's forceps. By exercising suitable controls over most of the multiple factors operating at the time of any delivery the authors were able to compare objectively the efficiency of the different methods of instrumental delivery. Smaller forces of compression and traction were exerted and better Apgar scores were recorded in infants delivered with the adjustable forceps than in infants delivered with the other instruments. The superiority of the adjustable forceps was most noticeable during midcavity deliveries of the malrotated head.  相似文献   

18.
ObjectiveTo evaluate neonatal outcomes following failed vacuum extraction using the Kiwi OmniCup vacuum device.MethodsWe conducted a retrospective study of 288 failed vacuum deliveries using the OmniCup device. The neonatal morbidity was recorded for each delivery.ResultsOf the 288 women involved, 82.3% were nulliparous. In 245 cases (85.1%), failed vacuum was followed by successful forceps delivery; failed vacuum and failed forceps was followed by Caesarean section in 5.9%; failed vacuum was followed by spontaneous vaginal delivery in 3.8%; and failed vacuum was followed by Caesarean section in 5.2%. Cephalhematoma was diagnosed in 19.8% of the 288 infants delivered. There were no cases of neonatal intracranial or subgaleal hemorrhage.ConclusionAlthough the method of delivery following failed vacuum extraction is controversial, and most national guidelines warn of increased neonatal morbidity with subsequent use of forceps, the low morbidity in this study is reassuring. In our cohort, low forceps delivery (station >2 cm) following failed vacuum extraction was not associated with serious neonatal morbidity.  相似文献   

19.
Objective: Vacuum extraction of a macrosomic fetus is considered a risk factor for shoulder dystocia (SD). We evaluated maternal and fetal outcomes following vacuum extraction of macrosomic infants.

Methods: A retrospective cohort study conducted in two large teaching hospitals. All deliveries of macrosomic infants by vacuum extraction and vaginal delivery were compared. The primary outcome measure was SD. Secondary outcome measures were severe perineal lacerations and postpartum hemorrhage. For statistical analysis, we used McNemar’s test and χ2 or Fisher’s exact tests. Odds ratios were analyzed via a logistic regression model.

Results: From 2003 to 2013, there were 6019 (5.45%) deliveries of macrosomic fetuses, and 230 (0.21%) were delivered by vacuum extraction. There were 23 (10%) and seven (3.04%) cases of SD in the study and control groups, respectively. The risk of SD was significantly higher in the study group (p?>?0.05). We found a significant association between SD and vacuum delivery [p?=?0.003; OR?=?3.54 (95% CI: 1.49–8.42)]. The composite adverse neonatal outcome rate was 6.5% (15/230) and 1.7% (4/230) in the study and control groups, respectively (p?=?0.009).

Conclusion: Vacuum extraction of a macrosomic infant is a risk factor for shoulder dystocia but not for postpartum hemorrhage or severe vaginal tears.  相似文献   

20.
OBJECTIVE: Determine chief residents' experience with vacuum and forceps deliveries and self-perceived competencies with the procedures. STUDY DESIGN: Study 1: A written questionnaire was mailed to all fourth year residents in US RRC approved Ob/Gyn programs. Study 2: The study was replicated using a web-based survey the following year. Data were analyzed with chi (2) and Wilcoxon Signed Rank tests using SPSS. RESULTS: Surveys were received from 238 residents (20%) in Study 1 and 269 residents in Study 2 (23%, representing 50% of all residency programs). In both studies, residents reported performing significantly less forceps than vacuum deliveries. Virtually all residents wanted to learn to perform both deliveries, indicated attendings were willing to teach both, and felt competent to perform vacuum deliveries (Study 1, 94.5%; Study 2, 98.5%); only half felt competent to perform forceps deliveries (Study 1, 57.6%; Study 2, 55.0%). The majority of residents who felt competent to perform forceps deliveries reported that they would predominately use forceps or both methods of deliveries in their practice (Study 1, 75.8%; Study 2, 64.6%). The majority of residents who reported that they did not feel competent to perform forceps deliveries reported that they would predominately use vacuum deliveries in their practice (Study 1, 86.1%; Study 2, 84.2%). CONCLUSION: Current training results in a substantial portion of residents graduating who do not feel competent to perform forceps deliveries. Perceived competency affected future operative delivery plans.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号