Lisa Hanson

A Critical Appraisal of Guidelines for Antenatal Care: Components of Care and Priorities in Prenatal Education

There are a variety of published prenatal care (PNC) guidelines that claim a scientific basis for the information included. Four sets of PNC guidelines published between 2005 and 2009 were examined and critiqued. The recommendations for assessment procedures, laboratory testing, and education/counseling topics were analyzed within and between these guidelines. The PNC components were synthesized to provide an organized, comprehensive appendix that can guide providers of antepartum care. The appendix may be used to locate which guidelines addressed which topics to assist practitioners to identify evidence sources. The suggested timing for introducing and reinforcing specific topics is also presented in the appendix. Although education is often assumed to be a vital component of PNC, it was inconsistently included in the guidelines that were reviewed. Even when education was included, important detail was lacking. Addressing each womans needs as the first priority was suggested historically and remains relevant in current practice to systematically provide care while maintaining the woman as the central player. More attention to gaps in current research is important for the development of comprehensive prenatal guidelines that contribute effectively to the long-term health and well-being of women, families, and their communities.

Second-Stage Labor Care: Challenges in Spontaneous Bearing Down

Substantial scientific evidence supports spontaneous maternal bearing down for its associated maternal and fetal physiologic benefits. Imposing specific directions for Valsalva pushing does not result in optimal outcomes but continues to be widely used, particularly when labor progress is less than optimal. However, there are numerous evidence-based approaches that can be used to avoid reverting to directed, prolonged Valsalva bearing down. Nursing care challenges may be encountered when using physiologic approaches; therefore, strategies are detailed to alleviate a variety of problems including ways to promote physiological descent and effectively support womens spontaneous efforts. For example, maternal postural interventions are suggested for asynclitic and occiput posterior fetal positions. When fetal heart rate abnormalities present and the fetus may be compromised, modifications to spontaneous bearing down are suggested as alternatives to longer and stronger Valsalva pushing, such as encouraging the women to use short pushes or breath through contractions until the fetus recovers. Open knee-chest maternal positioning can help to diminish a premature urge to push, while the closed knee-chest position may be more useful if cervical edema occurs. Even with clinical challenges, evidence-based care can help achieve the improved outcomes documented from womens spontaneous bearing-down efforts during the second stage.

Second-stage positioning in nurse-midwifery practices: Part 2: factors affecting use

This, the second of a two-part article, describes the findings of a national survey of practicing certified nurse-midwives (CNMs) regarding factors that affect the use of eight second-stage maternal positions. Lower CNM self-reported autonomy scores were associated with the use of the lithotomy and dorsal supine positions; maternal preference and higher CNM self-reported autonomy scores were associated with the use of the nonlithotomy positions. The use of nonlithotomy positions is one nontechnologic way to enhance the normal process of birth.This, the second of a two-part article, describes the findings of a national survey of practicing certified nurse-midwives (CNMs) regarding factors that affect the use of eight second-stage maternal positions. Lower CNM self-reported autonomy scores were associated with the use of the lithotomy and dorsal supine positions; maternal preference and higher CNM self-reported autonomy scores were associated with the use of the nonlithotomy positions. The use of nonlithotomy positions is one nontechnologic way to enhance the normal process of birth.

Probiotics for Treatment and Prevention of Urogenital Infections in Women: A Systematic Review.

INTRODUCTION Probiotics are a complementary and integrative therapy useful in the treatment and prevention of urogenital infections in women. This study extends the work of researchers who systematically investigated the scientific literature on probiotics to prevent or treat urogenital infections. METHODS A systematic review was conducted to determine the efficacy of probiotics for prevention and/or treatment of urogenital infections in adult women from January 1, 2008, through June 30, 2015. We searched in CINAHL, MEDLINE, Cochrane Central Register of Controlled Trials, Web of Science, Dissertations and Theses, and Alt-HealthWatch. After removing duplicates and studies that did not meet inclusion criteria, 20 studies were reviewed. All included at least one species of Lactobacillus probiotic as an intervention for treatment or prevention of urogenital infections. Data extracted included samples, settings, study designs, intervention types, reported outcomes, follow-up periods, and results. We evaluated all randomized controlled trials for risk of bias and made quality appraisals on all studies. RESULTS Fourteen of the studies focused on bacterial vaginosis (BV), 3 on urinary tract infections (UTIs), 2 on vulvovaginal candidiasis, and one on human papillomavirus (HPV) as identified on Papanicolaou test. Studies were heterogeneous in terms of design, intervention, and outcomes. Four studies were of good quality, 9 of fair, and 7 poor. Probiotic interventions were effective for treatment and prevention of BV, prevention of recurrences of candidiasis and UTIs, and clearing HPV lesions. No study reported significant adverse events related to the probiotic intervention. DISCUSSION The quality of the studies in this systematic review varied. Although clinical practice recommendations were limited by the strength of evidence, probiotic interventions were effective in treatment and prevention of urogenital infections as alternatives or co-treatments. More good quality research is needed to strengthen the body of evidence needed for application by clinicians.

Perinatal outcomes of prenatal probiotic and prebiotic administration: an integrative review.

ABSTRACTThe purpose of this integrative review was to identify, critique, and synthesize the maternal and neonatal evidence on the prenatal use of probiotics and prebiotics to inform perinatal health professionals. A comprehensive literature search resulted in 37 studies of prenatal probiotics and 1 on antepartal prebiotics published from 1990 through 2011 that reported maternal, fetal, and/or neonatal outcomes. The methodologic quality of the studies reviewed was high, although investigators used different probiotic combinations and inconsistently reported perinatal clinical outcomes. The extraction of perinatal outcome variables resulted in identification of 9 maternal and 5 neonatal categories. Prenatal probiotics significantly reduced the incidence of bacterial vaginosis, increased colonization with vaginal Lactobacillus and intestinal Lactobacillus rhamnosus, altered immune markers in serum and breast milk, improved maternal glucose metabolism, and reduced the incidence of gestational diabetes and preeclampsia. Antepartally, probiotics were associated with significantly higher counts of Bifidobacterium and Lactococcus lactis (healthy intestinal flora) in neonatal stool. Prenatal prebiotics significantly increased maternal intestinal Bifidobacterium. No adverse events were reported and there was evidence of safety and tolerance of prenatal probiotics and prebiotics in the scientific investigations reviewed. It is recommended that in future investigations of prenatal probiotics researchers explicitly report maternal and neonatal outcomes.

Feasibility of Oral Prenatal Probiotics against Maternal Group B Streptococcus Vaginal and Rectal Colonization

OBJECTIVE To examine the effect of an oral prenatal probiotic on group B Streptococcus (GBS) colonization and to demonstrate the feasibility of a larger randomized controlled trial. DESIGN This pilot study was an open-label, two-group quasi-experiment. SETTING An urban central city nurse-midwifery and wellness center serving a diverse population. PARTICIPANTS Ten pregnant participants received the oral probiotic (Florajen3) taken once daily, and 10 participants served as controls. METHODS A questionnaire on dietary practices, vaginal cleansing, sexual history, and symptoms and GBS colony count samples were taken at 28-, 32-, and 36-weeks gestation. RESULTS Participants in the probiotic group reported no adverse events or minor side effects; one half reported improved gastrointestinal symptoms. Although two women in each group had positive qualitative prenatal GBS cultures at 36 weeks, the probiotic group participants had lower quantitative GBS colony counts. The eight GBS negative averaged 90% probiotic adherence compared with two GBS positive women who averaged 68%. Yogurt ingestion was inversely related (p = .02) to GBS colonization. CONCLUSIONS Prenatal probiotic therapy has the potential to reduce GBS colonization. The potential of the probiotic intervention appears to be linked to daily adherence. A controlled clinical trial with a larger, adequately powered sample is feasible and justified.

Directive Versus Supportive Approaches Used by Midwives When Providing Care During the Second Stage of Labor

INTRODUCTION Although the risks associated with using sustained and forceful maternal bearing-down efforts during the second stage of labor have been well documented, most women who give birth in the United States bear down in response to direction from care providers about when and how to push rather than in response to their own physiologic urges. The purpose of this study was to describe the practices used by certified nurse-midwives/certified midwives (CNMs/CMs) in response to maternal bearing-down efforts when caring for women in second-stage labor and to identify factors associated with the use of supportive approaches to second-stage labor care. METHODS A national survey of 705 CNMs/CMs was conducted using mailed questionnaires. The instrument was an 84-item, fixed-choice questionnaire using Likert type scales that had been validated. A 72.6% response rate was achieved, and 375 of the respondents cared for women during the second stage of labor. RESULTS Most CNMs/CMs (82.4%) often or almost always supported women without epidural anesthesia to initiate bearing-down efforts only when the woman felt an urge to do so. When caring for women without an epidural, most of the respondents (67%) reported that they often or almost always supported a womans spontaneous bearing-down efforts without providing direction. Most participants reported using more directive practices when caring for women with epidural anesthesia. Whether caring for women with or without an epidural, most respondents (77.1% and 79.6%, respectively) often or almost always provided more direction as the fetal head emerged and the final stretching of the perineum was taking place. A change in fetal heart tones that led the midwife to believe the birth needed to occur quickly was the circumstance that had the greatest degree of influence on the participants (90.6%) decision to provide more direction during bearing-down efforts. Many participants indicated that they also were influenced to provide more direction when women in labor asked for more direction (73.3%) or appeared to be fatigued (74.6%). DISCUSSION The majority of CNMs/CMs use supportive approaches to bearing-down efforts during second-stage labor care and most used directive approaches as an intervention aimed at avoiding potential problems.

Medical students’ knowledge of midwifery practice after didactic and clinical exposure

Information concerning the student outcomes of interdisciplinary education is limited. The purpose of this study was to identify the knowledge of third-year medical students regarding the practice of certified nurse-midwives (CNMs). A 1-page survey instrument was developed and pretested. The instrument was administered as a pre- and posttest at the beginning and end of 7 Obstetrics and Gynecology rotations at 2 medical school clinical campuses of a large Midwestern medical school. Direct interaction with CNMs improved knowledge of collaborative practice arrangements and roles. This was particularly evident in knowledge areas related to CNM prescriptive authority. The medical students who had direct experience with CNMs expressed more interest in working with them in the future than those who lacked the exposure. Collaborative, interdisciplinary education of medical students appeared to promote improved understanding of roles and capabilities.

Rh Negative Status and Isoimmunization Update: A Case-Based Approach to Care

Prior to the 1970s and the advent of Rho (D) immune globulin (RIG) for Rh negative women, hemolytic disease of the newborn led to morbidity, long-term disabilities, and mortality. Antepartum RIG administration has been a standard of practice since 1983. Yet, Rh isoimmunization (sensitization) and its sequelae have not been completely eradicated. Rh-related issues remain clinical challenges facing perinatal and neonatal nurses. Evidence for the administration of RIG prenatally and during the postpartum period is presented including controversies and challenges. Current information about fetal and neonatal care of erythroblastosis fetalis and immune hydrops is also presented.

Midwifery Triage and Management of Trauma and Second/Third Trimester Bleeding

Trauma affects approximately 8% of all pregnancies, and bleeding affects nearly 5% of gestations. These two conditions are potentially life-threatening and require immediate management by the midwife. Trauma in pregnancy is commonly caused by motor vehicle accidents, falls, and assault. Although abruption resulting from trauma is a rare occurrence, injury caused by domestic violence, is associated with the greatest risk of obstetric complications. Bleeding in pregnancy has a number of etiologies. Midwives are well-prepared to safely and competently make a differential diagnosis of bleeding in the second and third trimesters. A sequence for midwifery triage of clients who present to the emergency room/triage area for trauma and bleeding is presented. Considerations for stabilization, history, physical examinations, diagnostic testing, initial management, and follow-up are described. Practical considerations for midwifery services incorporating provisions for triage into their caseloads are also provided.