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American Journal of Obstetrics and... Mar 2024Perineal trauma after vaginal birth is common, with approximately 9 of 10 women being affected. Second-degree perineal tears are twice as likely to occur in primiparous... (Review)
Review
Perineal trauma after vaginal birth is common, with approximately 9 of 10 women being affected. Second-degree perineal tears are twice as likely to occur in primiparous births, with a incidence of 40%. The incidence of obstetrical anal sphincter injury is approximately 3%, with a significantly higher rate in primiparous than in multiparous women (6% vs 2%). Obstetrical anal sphincter injury is a significant risk factor for the development of anal incontinence, with approximately 10% of women developing symptoms within a year following vaginal birth. Obstetrical anal sphincter injuries have significant medicolegal implications and contribute greatly to healthcare costs. For example, in 2013 and 2014, the economic burden of obstetrical anal sphincter injuries in the United Kingdom ranged between £3.7 million (with assisted vaginal birth) and £9.8 million (with spontaneous vaginal birth). In the United States, complications associated with trauma to the perineum incurred costs of approximately $83 million between 2007 and 2011. It is therefore crucial to focus on improvements in clinical care to reduce this risk and minimize the development of perineal trauma, particularly obstetrical anal sphincter injuries. Identification of risk factors allows modification of obstetrical practice with the aim of reducing the rate of perineal trauma and its attendant associated morbidity. Risk factors associated with second-degree perineal trauma include increased fetal birthweight, operative vaginal birth, prolonged second stage of labor, maternal birth position, and advanced maternal age. With obstetrical anal sphincter injury, risk factors include induction of labor, augmentation of labor, epidural, increased fetal birthweight, fetal malposition (occiput posterior), midline episiotomy, operative vaginal birth, Asian ethnicity, and primiparity. Obstetrical practice can be modified both antenatally and intrapartum. The evidence suggests that in the antenatal period, perineal massage can be commenced in the third trimester of pregnancy to increase muscle elasticity and allow stretching of the perineum during birth, thereby reducing the risk of tearing or need for episiotomy. With regard to the intrapartum period, there is a growing body of evidence from the United Kingdom, Norway, and Denmark suggesting that the implementation of quality improvement initiatives including the training of clinicians in manual perineal protection and mediolateral episiotomy can reduce the incidence of obstetrical anal sphincter injury. With episiotomy, the International Federation of Gynecology and Obstetrics recommends restrictive rather than routine use of episiotomy. This is particularly the case with unassisted vaginal births. However, there is a role for episiotomy, specifically mediolateral or lateral, with assisted vaginal births. This is specifically the case with nulliparous vacuum and forceps births, given that the use of mediolateral or lateral episiotomy has been shown to significantly reduce the incidence of obstetrical anal sphincter injury in these groups by 43% and 68%, respectively. However, the complications associated with episiotomy including perineal pain, dyspareunia, and sexual dysfunction should be acknowledged. Despite considerable research, interventions for reducing the risk of perineal trauma remain a subject of controversy. In this review article, we present the available data on the prevention of perineal trauma by describing the risk factors associated with perineal trauma and interventions that can be implemented to prevent perineal trauma, in particular obstetrical anal sphincter injury.
Topics: Pregnancy; Female; Humans; Birth Weight; Episiotomy; Parity; Parturition; Lacerations; Anal Canal; Risk Factors; Perineum; Obstetric Labor Complications
PubMed: 37635056
DOI: 10.1016/j.ajog.2022.06.021 -
American Journal of Obstetrics and... May 2023The assessment of labor progress from digital vaginal examination has remained largely unchanged for at least a century, despite the current major advances in maternal... (Review)
Review
The assessment of labor progress from digital vaginal examination has remained largely unchanged for at least a century, despite the current major advances in maternal and perinatal care. Although inconsistently reproducible, the findings from digital vaginal examination are customarily plotted manually on a partogram, which is composed of a graphical representation of labor, together with maternal and fetal observations. The partogram has been developed to aid recognition of failure to labor progress and guide management-specific obstetrical intervention. In the last decade, the use of ultrasound in the delivery room has increased with the advent of more powerful, portable ultrasound machines that have become more readily available for use. Although ultrasound in intrapartum practice is predominantly used for acute management, an ultrasound-based partogram, a sonopartogram, might represent an objective tool for the graphical representation of labor. Demonstrating greater accuracy for fetal head position and more objectivity in the assessment of fetal head station, it could be considered complementary to traditional clinical assessment. The development of the sonopartogram concept would require further undertaking of serial measurements. Advocates of ultrasound will concede that its use has yet to demonstrate a difference in obstetrical and neonatal morbidity in the context of the management of labor and delivery. Taking a step beyond the descriptive graphical representation of labor progress is the question of whether a specific combination of clinical and demographic parameters might be used to inform knowledge of labor outcomes. Intrapartum cesarean deliveries and deliveries assisted by forceps and vacuum are all associated with a heightened risk of maternal and perinatal adverse outcomes. Although these outcomes cannot be precisely predicted, many known risk factors exist. Malposition and high station of the fetal head, short maternal stature, and other factors, such as caput succedaneum, are all implicated in operative delivery; however, the contribution of individual parameters based on clinical and ultrasound assessments has not been quantified. Individualized risk prediction models, including maternal characteristics and ultrasound findings, are increasingly used in women's health-for example, in preeclampsia or trisomy screening. Similarly, intrapartum cesarean delivery models have been developed with good prognostic ability in specifically selected populations. For intrapartum ultrasound to be of prognostic value, robust, externally validated prediction models for labor outcome would inform delivery management and allow shared decision-making with parents.
Topics: Infant, Newborn; Pregnancy; Humans; Female; Ultrasonography, Prenatal; Labor Presentation; Fetus; Prospective Studies; Ultrasonography
PubMed: 37164504
DOI: 10.1016/j.ajog.2022.06.027 -
Obstetrics and Gynecology Apr 2020Despite significant changes in management of labor and delivery over the past few decades, operative vaginal birth remains an important component of modern labor...
Despite significant changes in management of labor and delivery over the past few decades, operative vaginal birth remains an important component of modern labor management, accounting for 3.3% of all deliveries in 2013 (). Use of obstetric forceps or vacuum extractor requires that an obstetrician or other obstetric care provider be familiar with the proper use of the instruments and the risks involved. The purpose of this document is to provide a review of the current evidence regarding the benefits and risks of operative vaginal birth.
Topics: Extraction, Obstetrical; Female; Humans; Obstetrics; Perinatal Care; Practice Guidelines as Topic; Pregnancy; Societies, Medical; United States
PubMed: 32217976
DOI: 10.1097/AOG.0000000000003764 -
Indian Journal of Ophthalmology Dec 2021Obstetrical forceps-induced Descemet membrane tears (FIDMT) are usually encountered during complicated forceps-assisted deliveries. The condition may lead to significant... (Review)
Review
Obstetrical forceps-induced Descemet membrane tears (FIDMT) are usually encountered during complicated forceps-assisted deliveries. The condition may lead to significant visual debilitation in young children and is frequently ignored due to its low incidence. Undue stretch on the Descemet's membrane during the process of forceps-assisted delivery results in their vertical/oblique tear (s), which usually leads to corneal edema in early neonatal life. On its resolution, these residual tears result in visually disabling astigmatism that can lead to dense and recalcitrant amblyopia. Slit-lamp examination, anterior segment optical coherence tomography, specular microscopy, confocal microscopy, and corneal topography and tomography can be employed for its accurate diagnosis. While these can be prevented by improved perinatal care, once diagnosed, they mandate prompt refractive correction and amblyopia therapy to prevent disabling visual deterioration in affected children. In adulthood, medical and surgical management may be planned for symptomatic patients based on coexistent amblyopia as this is the major factor guiding visual prognosis. There is limited comprehensive literature in this regard, and the present review discusses the pathogenesis, clinical features, and recent developments in investigations, management, and outcomes of FIDMT during the last three decades.
Topics: Adult; Astigmatism; Child; Child, Preschool; Corneal Edema; Corneal Topography; Descemet Membrane; Female; Humans; Infant, Newborn; Obstetrical Forceps; Pregnancy
PubMed: 34826970
DOI: 10.4103/ijo.IJO_863_21 -
Minerva Obstetrics and Gynecology Feb 2021Over the last three decades, the decrease in operative vaginal delivery (OVD) has lead to an increase in the rate of cesarean sections, giving rise to intense debate... (Review)
Review
Over the last three decades, the decrease in operative vaginal delivery (OVD) has lead to an increase in the rate of cesarean sections, giving rise to intense debate amongst healthcare providers. As the use of vacuum and forceps requires personnel be adequately trained so as to become familiar with the correct use of instruments, the lack of skilled and experienced instructors may well lead to this technique being discarded in the near future. The aim of this study was to review the literature, compare the recommendations from international OVD guidelines and to illustrate the correct technique of obstetrical vacuum and forceps application to promote OVD among clinicians as a safe way of delivery.
Topics: Cesarean Section; Delivery, Obstetric; Female; Humans; Pregnancy
PubMed: 33821598
DOI: 10.23736/S2724-606X.21.04679-7 -
Journal of Mother and Child Jun 2023Nowadays, we are witnessing a decrease of vaginal instrumental deliveries and continuous increase of caesarean section rate. However, proper identification of... (Review)
Review
BACKGROUND
Nowadays, we are witnessing a decrease of vaginal instrumental deliveries and continuous increase of caesarean section rate. However, proper identification of possibility of execution, indications for instrumental delivery and their skilful use may improve the broadly understood maternal and neonatal outcomes. The aim of this study is to present prevalence, risk factors, indications and outcomes of forceps deliveries among the patients at Department of Perinatology, Lodz.
MATERIAL AND METHODS
A retrospective study was conducted at the Department of Perinatology, Medical University of Lodz. The study included forceps deliveries carried out between January 2019 and December 2022. Total number of 147 cases were analysed in terms of indications for forceps delivery and maternal and neonatal outcomes such as vaginal - or cervical - laceration, postpartum haemorrhage, perineal tear, newborn injuries, Apgar score, umbilical cord blood gas analysis, NICU admission and cranial ultrasound scans.
RESULTS
The prevalence of forceps delivery was 2.2%. The most common indication for forceps delivery was foetal distress (81.6%). Among mothers, the most frequent complication was vaginal laceration (40.1%). Third-and fourth-degree perineal tears were not noted. Regarding neonatal outcomes, Apgar score ≥ 8 after 1st and 5th minute of life received accordingly 91.2% and 98% of newborns. Only 8.8% experienced severe birth injuries (subperiosteal haematoma, clavicle fracture).
CONCLUSIONS
Although foetal distress is the most common indication for forceps delivery, the vast majority of newborns were born in good condition and did not require admission to NICU. Taking into consideration high efficacy and low risk of neonatal and maternal complications, forceps should remain in modern obstetrics.
Topics: Humans; Infant, Newborn; Pregnancy; Female; Cesarean Section; Fetal Distress; Retrospective Studies; Lacerations; Vacuum Extraction, Obstetrical; Obstetrical Forceps
PubMed: 37920112
DOI: 10.34763/jmotherandchild.20232701.d-23-00057 -
BMJ (Clinical Research Ed.) Oct 2023argue that Canada’s high rates of maternal and neonatal trauma following operative vaginal delivery warrant urgent recognition, transparency, and action
argue that Canada’s high rates of maternal and neonatal trauma following operative vaginal delivery warrant urgent recognition, transparency, and action
Topics: Pregnancy; Infant, Newborn; Female; Humans; Vacuum Extraction, Obstetrical; Infant, Newborn, Diseases; Birth Injuries; Family; Surgical Instruments; Obstetrical Forceps; Delivery, Obstetric; Extraction, Obstetrical; Retrospective Studies
PubMed: 37857419
DOI: 10.1136/bmj-2022-073991 -
American Journal of Obstetrics &... Nov 2021This review presents the available data on the diagnosis of obstetrical anal sphincter injury by postnatal ultrasound imaging. There is increasing evidence that anal... (Review)
Review
This review presents the available data on the diagnosis of obstetrical anal sphincter injury by postnatal ultrasound imaging. There is increasing evidence that anal sphincter tears are often missed after childbirth and, even when diagnosed, often suboptimally repaired, with a high rate of residual defects after reconstruction. Even after postpartum diagnosis and primary repair, 25% to 50% of patients will have persistent anal incontinence. As clinical diagnosis may fail in the detection and classification of obstetrical anal sphincter injury, the use of imaging has been proposed to improve the detection and treatment of these lacerations. Notably, 3-dimensional endoanal ultrasound is considered the gold standard in the detection of obstetrical anal sphincter injury, and recently, 4-dimensional transperineal ultrasound, commonly available in obstetrical and gynecologic settings, has proven to be effective as well. Avoidance of forceps delivery when possible, performance of a rectal examination after vaginal delivery and before repair of any severe perineal tear, and offering sonographic follow-up at 10 to 12 weeks after vaginal delivery in high-risk women (maternal age of ≥35 years, vaginal birth after cesarean delivery, forceps, prolonged second stage of labor, overt obstetrical anal sphincter injury, shoulder dystocia, and macrosomia) may help reduce morbidity arising from anal sphincter tears.
Topics: Adult; Anal Canal; Female; Humans; Lacerations; Perineum; Postpartum Period; Pregnancy; Ultrasonography
PubMed: 34129995
DOI: 10.1016/j.ajogmf.2021.100421 -
Ceska Gynekologie 2020An overview of urinary incontinence issues after vaginal delivery versus instrumental delivery. (Review)
Review
OBJECTIVE
An overview of urinary incontinence issues after vaginal delivery versus instrumental delivery.
DESIGN
A review article.
METHODS
Compilation of published data from scientific literature.
SETTING
Ústav pro studium odborných předmětů a praktických dovedností, Fakulta zdravotnických věd, Univerzita Palackého v Olomouci. Centrum vědy a výzkumu, Fakulta zdravotnických věd, Univerzita Palackého v Olomouci.
CONCLUSION
Pregnancy and childbirth can lead to injuries of the pelvic floor muscles. The age of the firstborn in the pelvic floor disorders is similar to that of the end of pregnancy. Surgical vaginal delivery is an important part of modern obstetric practice. This serves to facilitate the delivery of the head. Includes vacuumextraction (VEX) and forceps. Forceps-assisted delivery has a lower failure rate than vacuum-assisted delivery but is associated with a higher incidence of maternal pelvic floor trauma.
Topics: Delivery, Obstetric; Female; Humans; Pelvic Floor; Pelvic Floor Disorders; Pregnancy; Risk Factors; Urinary Incontinence; Vacuum Extraction, Obstetrical
PubMed: 33562983
DOI: No ID Found