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At least 613 records · Page 34Linked to original sources
PubMed2002

Clinical evaluation of a "hand pump" vacuum delivery device.

OBJECTIVE: To evaluate the clinical performance of a hand-held vacuum delivery system. METHODS: Between December 1999 and September 2000, a prospective audit was undertaken of all vacuum deliveries performed at Derby City General Hospital. RESULTS: In this period, 3296 deliveries occurred, of which 317 (9.6%) were by vacuum. Of these, data were collected on 300 (94.6%), 78 deliveries with the hand-held vacuum and 222 with standard vacuum. There were no differences in the demographic profiles, indication, gestational age at delivery, or birth weights between the two groups (P >.05 in all instances). In all types of delivery, nonrotational and rotational, the hand-held vacuum performed comparably to its contemporaries with no increase in delivery "failures" being noted. There were no differences in the extent or frequency of maternal injuries between the instruments, and other than transient scalp abrasions, there were no significant fetal injuries. CONCLUSION: The hand-held vacuum delivery system is a functionally effective addition to the practitioners' "armory," providing an alternative to the standard metal and silastic cups.

Adult↗
PubMed1997

Vacuum extraction: does duration predict scalp injury?

OBJECTIVE: To identify variables that increase the chance of neonatal scalp injury during vacuum extraction. METHODS: We conducted a prospective observational study of 134 vacuum extraction-assisted deliveries at Olive View-UCLA Medical Center in 1995. Data collected included parity, gestational age, duration of first and second stages of labor, indication for operative delivery, station and position of fetal head, duration of vacuum application, number of "pop-offs," neonatal weight, and descriptions of scalp marks or injury. Cranial imaging studies were obtained if clinically indicated. RESULTS: There were 28 infants with scalp trauma, including 17 superficial lacerations, six large caputs, and 12 cephalohematomata; one infant had subgaleal, subdural, and subarachnoid hemorrhages. Logistic regression analysis showed duration of vacuum application to be the best predictor of scalp injury, followed by duration of second stage of labor and paramedian cup placement. Duration of vacuum application ranged from 0.5 to 26 minutes, with a median length of 3 minutes. The proportion of injuries was greater for applications exceeding 10 minutes (6 of 9) than for those 10 minutes or shorter (22 of 121, P < .01). We did not encounter any cases of clinically important scalp injury. CONCLUSIONS: Cosmetic scalp trauma occurred in 21% of our newborns delivered by vacuum extraction and was more common after longer vacuum applications, longer second stages, and paramedian cup placement.

Adolescent↗
PubMed1997

A randomized trial of two vacuum extraction techniques.

OBJECTIVE: To determine whether two techniques of vacuum extraction delivery-continuous vacuum and intermittent vacuum-have different effects on maternal-fetal outcomes. METHODS: Patients to be delivered by vacuum extraction were randomized to receive continuous or intermittent vacuum. All deliveries were performed using the M-cup. In the continuous group, the level of vacuum was brought to 600 mmHg between contractions and was maintained at that level until delivery of the infant. Active efforts were made to prevent fetal loss-of-station between contractions by maintaining traction. In the intermittent group, the level of vacuum was decreased to 100 mmHg between contractions and no effort was made to prevent fetal loss-of-station. RESULTS: A total of 322 patients were randomized: 164 in the continuous arm and 158 in the intermittent group. The continuous method did not effect delivery faster (continuous 167 +/- 175 seconds versus intermittent 167 +/- 150 seconds; P = .97), nor did it lead to a reduction in method failures (continuous 12, intermittent nine; P = .72). The intermittent method did not appear to offer any benefit to the neonate regarding cephalhematoma formation (continuous 20, intermittent 17; P = .686) or any other measure of neonatal outcome. Maternal lacerations and episiotomy extensions were evenly distributed between the groups. Overall, the efficacy rate of the vacuum cup was 93.5% and the cephalhematoma rate was 11.5%. CONCLUSION: No differences in maternal or fetal outcome could be demonstrated if the level of vacuum was decreased between contractions or if an effort was made to prevent fetal loss-of-station. The clinical results obtained in this trial using the M-cup are similar to the published results with the stainless-steel Malmstrom cup.

Adult↗
PubMed1998

Treatment of miscarriage: current practice and rationale.

OBJECTIVE: To describe health service use during miscarriage and medical treatment of miscarriage in Finland and the rationales behind them. METHODS: Description of the treatment practices was based on a survey sent to a nationally representative sample of 3000 Finnish women age 18-44 years in 1994, on national hospital care register data from 1988 and 1995, and on treatment recommendations in textbooks (from 1950-1994) for physicians, nurses, and midwives. Published, controlled studies that were identified through various systematic searches were reviewed for scientific evidence justifying the identified practices. RESULTS: According to the survey, 97% of the 326 women who had a miscarriage had visited a physician, and 74% were treated as inpatients. The hospital registers indicated that most (at least 84% in 1988, and 88% in 1995) women who had a miscarriage had their uteri evacuated operatively. According to the textbook recommendation, care by a physician, inpatient care, and routine uterine evacuations were seen as norms. No controlled studies providing empirical support for these practices were found. In general, studies were few and recent, and they placed emphasis on different evacuation methods. CONCLUSION: Current treatment of miscarriage is not based on controlled studies. All aspects of care, from best care provider to various interventions, urgently need further evaluation by trials.

Abortion, Incomplete↗
PubMed2001

Effects of rectally administered paracetamol on infants delivered by vacuum extraction.

OBJECTIVE: To evaluate whether paracetamol (20 mg/kg rectally) relieves pain in infants delivered by vacuum extraction, and improves clinical condition. METHODS: Prospective, randomised, double-blind, placebo-controlled study. Infants delivered by vacuum extraction were randomised either to the study group (n=61) and given paracetamol or to the control group (n=61) receiving placebo. Pain assessment was performed by a validated pain score and by scoring the clinical condition. Both scores and clinical symptoms in these groups were compared with symptoms in a reference group (n=66) with uncomplicated pregnancy and delivery in vertex position without vacuum extraction. RESULTS: Pain score did not differ between groups; clinical condition in the study group improved only after the first dose. There was a significant difference (P<0.05) in objective clinical symptoms in the vacuum extraction groups, compared to the reference group. CONCLUSION: One dose of paracetamol given to neonates delivered by vacuum extraction significantly improved their clinical condition, but did not result in a significant change in objective pain scores. Subsequent doses of paracetamol did not show any effect on the clinical symptoms or appearance of the neonates studied.

Acetaminophen↗
PubMed2003

Urinary and anal incontinence after vacuum delivery.

OBJECTIVES: To evaluate urinary and fecal incontinence symptoms, and occult anal sphincter defects in women after vacuum and spontaneous vaginal delivery. STUDY DESIGN: In a case-control study, 50 primiparous women delivered by vacuum extraction were compared to 50 women delivered spontaneously. Urinary and anal incontinence symptoms, pelvic floor muscle strength and sphincter defects on endoanal ultrasound were evaluated 6-24 weeks postpartum. RESULTS: New anal incontinence symptoms after childbirth were found in 30% of the vacuum group compared to 34% of the controls, new urinary incontinence symptoms in 28 and 42%, respectively (not significant). After excluding Grade III perineal tear, sonographic sphincter defects were found in 11 (27.5%) after vacuum delivery compared to 4 (10%) after spontaneous delivery (P<0.05, chi(2)-test). CONCLUSION: Anal and urinary incontinence symptoms are frequent after vaginal delivery. Vacuum delivery causes more sonographic sphincter defects but appears to cause no more harm to pelvic floor function than spontaneous vaginal delivery.

Adult↗
PubMed2001

[Posterior fossa hemorrhage in newborns following vaccum extractor delivery].

AIM: To emphasize the risk of posterior fossa hemorrhage in newborns following vacuum extraction. PATIENTS AND METHODS: Over a period of 26 months (September 1996-December 1998), seven patients who underwent delivery with the vacuum extractor had symptoms of brain stem compression, related to posterior fossa hemorrhage. They were referred to the neonatal intensive care unit. Some parameters had been analyzed: gestational period, delivery circumstances, gestational age, parameters of newborn, indications of vacuum extraction and other paraclinical investigations (biological and radiological). RESULTS: Ultrasound scan revealed intracranial hemorrhage in five cases of seven; mean time of diagnosis was 10 hours of age. All patients presented symptoms of brain stem compression. Mean period of follow-up was 22 months: six of seven patients had a normal neurodevelopment. One patient had a cerebellar ataxia, another one a palsy of the IIIrd cranial nerve. CONCLUSION: Analyses of posterior fossa by ultrasound scan should be made for newborns delivered by vacuum extractor, especially if they had symptoms of brain stem compression.

Brain Stem↗
PubMed2002

[Spontaneous abortions of first trimester pregnancy: is uterine aspiration still in line?].

Spontaneous abortions of first trimester pregnancy is a frequent pathology in gynecology (more than 10% of clinical pregnancy). Since the mid of twentieth century, the gold standard of evacuation of spontaneous abortion is manual vacuum aspiration most of the time under general anesthesia. This method is used in France for all miscarriages after 7 weeks' gestation at the sonography (about 40,000 women in 1999) but complications are not rare. The vaginal sonography and new medical management changes the view. We can now use expectative management or medical management with misoprostol and/or mifepristone. We summarise the current literature and propose a randomised multicentric control trial.

Abortifacient Agents↗
PubMed1999

Paracetamol 1 g given rectally at the end of minor gynaecological surgery is not efficacious in reducing postoperative pain.

BACKGROUND: We studied the analgesic effects of 1 g paracetamol given rectally at the end of surgery in a prospective, randomised, double-blind study. METHODS: One hundred and forty ASA I-II women scheduled for elective termination of pregnancy under general anaesthesia were randomly allocated to receive paracetamol or placebo. All patients had standardised anaesthesia with propofol, fentanyl and oxygen in nitrous oxide. Postoperative pain was assessed by VAS score. RESULTS: We could find no difference regarding postoperative pain, need for analgesics or time to discharge between the groups. CONCLUSION: The routine use of 1 g paracetamol given rectally at the end of surgery after termination of pregnancy seems not to be justified.

Abortion, Induced↗
PubMed2004

Herpes simplex virus infection after vacuum-assisted vaginally delivered infants of asymptomatic mothers.

OBJECTIVE: To determine whether vacuum extraction technique is associated with an increased risk of herpes simplex virus (HSV) infection in infants born to asymptomatic mothers. PATIENTS AND METHODS: We reviewed the charts of all infants born at the Edith Wolfson Medical Center and admitted to the hospital's neonatal intensive care unit from January 1999 to June 2002 diagnosed with HSV infection. RESULTS: During the study period, 6953 infants were delivered at our institution and 11 infants had HSV infection. The prevalence of neonatal HSV infection was 1.6 per 1000 live births. In 699 infants, vacuum extraction was used for delivery. Five out of the 11 infants delivered vaginally by vacuum extraction developed HSV infection at the site of the vacuum extractor application. They were born to mothers who were asymptomatic at delivery and had no history of HSV genital infection. HSV type 2 was isolated from the vesicular fluid in all infected infants delivered by vacuum extraction, and none had central nervous system involvement. The prevalence of neonatal HSV infection in vacuum-assisted births was seven per 1000 live births as compared to 0.95 in 1000 in infants delivered vaginally or by cesarean section (p<0.0001). The relative risk of HSV infection in infants born in vacuum-assisted births was 7.45 (95% confidence interval (CI) 1.99 to 27.42, p=0.001). All patients were treated with intravenous acyclovir and no recurrences of HSV infection have been noticed at follow-up. CONCLUSIONS: Laceration of the fetal scalp by vacuum extraction technique may enhance the acquisition and the early appearance of cutaneous infection in infants exposed to HSV shedding in the genital tract of asymptomatic mothers, as the virus gains access through the lacerated scalp.

Female↗
PubMed1997

Conservative management of tracheal rupture after intubation.

A case is reported of a newborn with tracheal rupture resulting from a complicated delivery requiring vacuum extraction and two attempts at intubation. Despite the severity of the situation the infant was successfully managed conservatively with orotracheal intubation.

Female↗
PubMed2001

Emergency management of the nonviable intrauterine pregnancy.

Fetal death early in gestation is common. Patients in the first trimester of pregnancy with abdominal pain or vaginal bleeding often present to the emergency department for care. Over the past 20 years, the technology available to confirm or exclude the diagnosis of a nonviable pregnancy has improved dramatically. These improvements have altered the diagnostic approach to these patients and have lead to a change in the terminology used to categorize the pregnancy status. In addition, the therapeutic options available to manage patients with a confirmed nonviable pregnancy have expanded greatly. In this article, we re-evaluate the classification scheme used to categorize patients with first trimester pain or bleeding given the improved technology that is available to the emergency physician today. We discuss the role of ultrasound and biochemical markers in confirming or excluding the diagnosis of a nonviable pregnancy. Finally, we review the therapeutic options, including expectant, surgical as well as medical management that are available once the diagnosis of a nonviable intrauterine pregnancy has been confirmed.

Abdominal Pain↗