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1.
Am J Obstet Gynecol MFM ; 4(6): 100707, 2022 Nov.
Article in English | MEDLINE | ID: mdl-35948268

ABSTRACT

BACKGROUND: Three small clinical trials have suggested that supplementation with n-3 long-chain polyunsaturated fatty acids (eicosapentaenoic acid and docosahexaenoic acid) found in fish oils may reduce nicotine cravings and at higher doses reduce cigarette consumption. Pregnant women who smoke have fewer pharmacologic options to aid them with smoking cessation. Although n-3 long-chain polyunsaturated fatty acid supplementation has been studied in pregnancy, few studies have evaluated doses of ≥4 g per day, and no previous studies have selectively enrolled pregnant women who smoke. High-dose n-3 long-chain polyunsaturated fatty acids may aid cessation but could be poorly tolerated in pregnant women who smoke because of gastrointestinal side effects. OBJECTIVE: We conducted a feasibility trial to determine the tolerability of high-dose n-3 long-chain polyunsaturated fatty acid supplementation in pregnant women who smoked. We hypothesized that n-3 long-chain polyunsaturated fatty acid doses of 4.2 g a day would be well-tolerated relative to an olive oil placebo. We assessed red blood cell phospholipid membrane concentrations at baseline and end of therapy (4 weeks) and piloted outcomes for a future efficacy trial of n-3 long-chain polyunsaturated fatty acid supplementation for smoking cessation in pregnancy. STUDY DESIGN: We recruited 28 pregnant women between the gestational ages of 6 and 36 weeks who reported daily cigarette smoking and were motivated to quit to participate in a double-blind placebo-controlled randomized feasibility trial of 4.2 g per day of n-3 long-chain polyunsaturated fatty acid supplementation. Participants reported cigarettes per day, completed the Fagerström Test for Cigarette Dependence, and provided blood, urine, and exhaled CO samples. We used repeated-measures analysis of variance to pilot analyses of changes in cigarettes per day and Fagerström Test for Cigarette Dependence scores. RESULTS: At baseline, red blood cell membrane eicosapentaenoic acid concentrations were negatively correlated with cigarettes per day (r=-0.44; P=.04). By 4 weeks, circulating n-3 long-chain polyunsaturated fatty acid levels increased by 18% in the n-3 long-chain polyunsaturated fatty acid supplementation arm vs a decrease of 3% in the placebo arm. Occurrence of gastrointestinal side effects such as burping, heartburn, diarrhea, abdominal pain, or nausea did not differ statistically between study arms. At 4 weeks, participants allocated to the n-3 long-chain polyunsaturated fatty acids arm reported a median of 3 cigarettes per day (interquartile range, 1-8) vs 7 cigarettes per day (interquartile range, 1-14) in the placebo arm, which was not statistically significant (P=.99). Participants allocated to the n-3 long-chain polyunsaturated fatty acids arm had a decrease of 1 (interquartile range, 0-1) on the Fagerström Test for Cigarette Dependence score vs 0 (interquartile range, 0-0) for placebo (P=.46). CONCLUSION: High-dose n-3 long-chain polyunsaturated fatty acids may be tolerated in pregnant women who smoke; however, there was a high level of participant dropout, with more participants allocated to the fish oil arm becoming lost to follow-up. These results will inform the design of a future large-scale randomized controlled trial to test the impact of fish oil supplements on smoking cessation in pregnancy.

2.
Trials ; 22(1): 922, 2021 Dec 14.
Article in English | MEDLINE | ID: mdl-34906201

ABSTRACT

BACKGROUND: Tobacco use during pregnancy is the most important modifiable risk factor associated with adverse pregnancy outcomes, increasing the risk of preterm birth, intrauterine growth restriction and sudden infant death syndrome. Fewer than half of pregnant smokers can quit on their own. Identifying safe and effective therapies to prevent tobacco-related adverse pregnancy outcomes and/or increase smoking cessation in pregnant women would have a substantial public health impact. Cigarette smoking is associated with a relative deficiency in circulating n-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) levels. A recent analysis found that smokers taking n-3 LCPUFAs during pregnancy had a reduction in preterm labor risk when compared to non-smokers. Studies have shown that supplemental n-3 LCPUFAs may also reduce nicotine cravings and daily cigarette use. Thus, smokers may benefit from supplemental n-3 LCPUFAs by lowering the risk of preterm labor and/or increased smoking cessation. To address important remaining knowledge gaps, we propose the Investigating N-3 Fatty Acids to prevent Neonatal Tobacco related outcomeS (INFANTS). METHODS: The INFANTS study is a multicenter, randomized, double-blind, placebo-controlled study that will randomize 400 pregnant smokers to either supplemental n-3 LCPUFAs or placebo. Participants will be enrolled between 12 and 24 weeks' gestation and followed until 6 weeks after delivery. We will recruit from clinical centers throughout Middle Tennessee. We will assess smoking behavior after 12 weeks of supplementation using self-report and validated biomarkers of tobacco exposure. We will measure response to supplementation using biological markers of n-3 LCPUFA status. Our primary endpoint will be preterm labor as reflected by gestational age at delivery. Our secondary endpoint will be change from baseline in cigarettes per day at 12 weeks. DISCUSSION: This study tests the hypothesis that smoking-induced n-3 LCPUFA deficiencies contribute to tobacco-related adverse pregnancy outcomes and that supplementation of n-3 LCPUFAs in pregnant smokers may prevent these complications. If our study demonstrates that supplemental n-3 LCPUFAs are effective at reducing the risk of tobacco-related adverse neonatal outcomes and/or reducing tobacco use during pregnancy, our results could have an immediate and major impact on pregnancy care and neonatal outcomes. TRIAL REGISTRATION: ClinicalTrials.gov NCT04417595. Registered on April 21, 2020.


Subject(s)
Fatty Acids, Omega-3 , Premature Birth , Tobacco Products , Double-Blind Method , Fatty Acids , Female , Humans , Infant , Infant, Newborn , Multicenter Studies as Topic , Pregnancy , Pregnancy Outcome , Premature Birth/prevention & control , Randomized Controlled Trials as Topic , Smokers , Nicotiana , Tobacco Use
3.
Obstet Gynecol ; 125(1): 56-57, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25560103

ABSTRACT

BACKGROUND: Pelvic organ incarceration resulting from complete uterovaginal prolapse is rare. Unique management and treatment of this condition are presented. CASE: A 66-year-old multigravid woman presented with increasing abdominal pain, 1-day history of urinary retention, and 30-day history of obstipation. She exhibited complete procidentia, and an attempt to reduce the prolapse immediately was unsuccessful. After fecal disimpaction in the operating room, an obstetric balloon was used for temporary reduction. CONCLUSION: Incarcerated complete procidentia is treated in a stepwise process, initially reducing the prolapse to relieve acute incarceration symptoms. Typically, reduction is accomplished with the aid of a pessary. However, because of this patient's condition, an obstetric balloon was used for temporary reduction to allow subsequent surgical treatment after tissue rest and medical stabilization. This method should be considered in similar situations.


Subject(s)
Pelvic Organ Prolapse/therapy , Uterine Balloon Tamponade , Vaginal Diseases/therapy , Aged , Constipation/etiology , Fecal Impaction/etiology , Fecal Impaction/therapy , Female , Humans , Pelvic Organ Prolapse/complications , Vaginal Diseases/etiology
4.
PLoS One ; 9(3): e92778, 2014.
Article in English | MEDLINE | ID: mdl-24671232

ABSTRACT

INTRODUCTION: Preterm birth is a major contributor to neonatal morbidity and mortality and its rate has been increasing over the past two decades. Antidepressant medication use during pregnancy has also been rising, with rates up to 7.5% in the US. The objective was to systematically review the literature to determine the strength of the available evidence relating to a possible association between antidepressant use during pregnancy and preterm birth. METHODS: We conducted a computerized search in PUBMED, MEDLINE and PsycINFO through September 2012, supplemented with a manual search of reference lists, to identify original published research on preterm birth rates in women taking antidepressants during pregnancy. Data were independently extracted by two reviewers, and absolute and relative risks abstracted or calculated. Our a priori design was to group studies by level of confounding adjustment and by timing of antidepressant use during pregnancy; we used random-effects models to calculate summary measures of effect. RESULTS: Forty-one studies met inclusion criteria. Pooled adjusted odds ratios (95% CI) were 1.53 (1.40-1.66) for antidepressant use at any time and 1.96 (1.62-2.38) for 3rd trimester use. Controlling for a diagnosis of depression did not eliminate the effect. There was no increased risk [1.16 (0.92-1.45)] in studies that identified patients based on 1st trimester exposure. Sensitivity analyses demonstrated unmeasured confounding would have to be strong to account for the observed association. DISCUSSION: Published evidence is consistent with an increased risk of preterm birth in women taking antidepressants during the 2nd and 3rd trimesters, although the possibility of residual confounding cannot be completely ruled out.


Subject(s)
Antidepressive Agents/adverse effects , Premature Birth/chemically induced , Antidepressive Agents/therapeutic use , Confidence Intervals , Confounding Factors, Epidemiologic , Female , Humans , Infant, Newborn , Mental Disorders/drug therapy , Odds Ratio , Pregnancy
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