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Cardiac pregnancy

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https://www.readbyqxmd.com/read/28442640/left-recumbent-position-decreases-heart-rate-without-alterations-in-cardiac-autonomic-nervous-system-activity-in-healthy-young-adults
#1
Konosuke Sasaki, Mayu Haga, Yoichi Endo, Junko Fujiwara, Ryoko Maruyama
Some studies have reported that recumbent position may have advantages in patients with heart disease and in pregnancy. However, it remains controversial whether recumbent position affects autonomic nervous system activity and hemodynamics in healthy adults. The aim of this study was to evaluate alterations in heart rate variability (HRV) and hemodynamics in the supine, left recumbent and right recumbent positions in healthy young adults. A total of 80 participants aged 22.8 ± 3.1 years were enrolled in this observational study...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28441571/negative-histology-with-surgically-treated-tubal-ectopic-pregnancies-a-retrospective-cohort-study
#2
Linda Farahani, Anjita Sinha, Jilly Lloyd, Melissa Islam, Jackie A Ross
OBJECTIVE: To determine the outcome of histological examinations of surgical specimens obtained from treatment of tubal ectopic pregnancy and to correlate with clinical findings, pre-operative ultrasound scans and the type of surgery. STUDY DESIGN: A retrospective cohort study of 941 women diagnosed with a tubal ectopic pregnancy in the Early Pregnancy Unit and having surgical treatment at King's College Hospital, London. Clinical and ultrasound data had been entered contemporaneously on our electronic early pregnancy database and hospital clinical records over an 11year period from 2004 to 2014...
April 2, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28439937/maternal-nutrient-restriction-during-pregnancy-and-lactation-leads-to-impaired-right-ventricular-function-in-young-adult-baboons
#3
Anderson H Kuo, Cun Li, Hillary F Huber, Matthias Schwab, Peter W Nathanielsz, Geoffrey D Clarke
Maternal nutrient restriction induces IUGR increasing later life chronic disease including cardiovascular dysfunction. Our left ventricular (LV) CMRI studies in IUGR baboons (8 M, 8 F, 5.7 years- human equivalent approximately 25 years), control offspring (8 M, 8 F, 5.6 years), and normal elderly (OLD) baboons (6 M, 6 F, mean 15.9 years) revealed long-term LV abnormalities in IUGR offspring. Although it is known that right ventricular (RV) function is dependent on LV health, the IUGR right ventricle (RV) remains poorly studied...
April 25, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28438984/comparison-of-multiple-non-invasive-methods-of-measuring-cardiac-output-during-pregnancy-reveals-marked-heterogeneity-in-the-magnitude-of-cardiac-output-change-between-women
#4
John W Petersen, Jing Liu, Yueh-Yun Chi, Melissa Lingis, R Stan Williams, Alice Rhoton-Vlasak, Mark S Segal, Kirk P Conrad
Various non-invasive methods are available to measure cardiac output (CO) during pregnancy. We compared serial measures of CO using various methods to determine which provided the least variability. Ten patients with spontaneous pregnancy had estimation of CO at baseline prior to becoming pregnant and at the end of the first and third trimesters. Echocardiographic data were used to estimate CO using the Teichholz method, Simpson's biplane method, and the Doppler determined velocity time integral (VTI) method...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28437601/maternal-hemodynamics-in-normal-pregnancies-reference-ranges-and-the-role-of-maternal-characteristics
#5
Dimuthu Vinayagam, Baskaran Thilaganathan, Oliver Stirrup, Elena Mantovani, Asma Khalil
OBJECTIVES: The main aim of this study was to construct reference ranges of the maternal central hemodynamic parameters during pregnancy. The second aim was to determine the maternal and pregnancy characteristics, which influence these hemodynamic parameters. METHODS: This was a prospective cohort study of low-risk pregnant women attending for routine antenatal care at St George's Hospital, London. The exclusion criteria included any medical disorder present at the time of study recruitment, or development of hypertension or intrauterine fetal growth restriction following study recruitment...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28436940/disruption-of-spatiotemporal-hypoxic-signaling-causes-congenital-heart-disease-in-mice
#6
Xuejun Yuan, Hui Qi, Xiang Li, Fan Wu, Jian Fang, Eva Bober, Gergana Dobreva, Yonggang Zhou, Thomas Braun
Congenital heart disease (CHD) represents the most prevalent inborn anomaly. Only a minority of CHD cases are attributed to genetic causes, suggesting a major role of environmental factors. Nonphysiological hypoxia during early pregnancy induces CHD, but the underlying reasons are unknown. Here, we have demonstrated that cells in the mouse heart tube are hypoxic, while cardiac progenitor cells (CPCs) expressing islet 1 (ISL1) in the secondary heart field (SHF) are normoxic. In ISL1+ CPCs, induction of hypoxic responses caused CHD by repressing Isl1 and activating NK2 homeobox 5 (Nkx2...
April 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28436133/population-trends-in-prenatal-detection-of-transposition-of-great-arteries-impact-of-obstetrical-screening-ultrasound-guidelines
#7
Ravi Prasad, Mills Lindsay, Fruitman Deborah, Savard Winnie, Colen Timothy, Khoo Nee, Serrano-Lomelin Jesus, Hornberger Lisa K
BACKGROUND: D-transposition of the great arteries (D-TGA) is one of the most common critical neonatal heart defects. Although there are clinical advantages to a prenatal diagnosis, D-TGA has had low prenatal detection internationally. Recent obstetrical ultrasound guidelines incorporating screening of cardiac outflows may improve prenatal detection of D-TGA. We sought to evaluate trends in the prenatal detection of D-TGA with/without ventricular septal defect (VSD) in Alberta over the past 13 years, examining the potential impact of enhanced ultrasound guidelines in 2009-2010 and 2013 and factors impacting detection...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28426617/clinical-updates-in-women-s-health-care-summary-arrhythmias-primary-and-preventive-care-review
#8
Brittany S Fuller, Michele D Voeltz
Obstetrician-gynecologists often are the sole providers of health care to female patients. Because cardiovascular disease is the leading cause of death in women in the United States, obstetrician- gynecologists must be aware of the risk factors, symptoms, and signs of cardiovascular disease and arrhythmia. Furthermore, they must be prepared to identify and treat common types of arrhythmia in this population and refer patients to cardiology for specialized care. Understanding the role of pregnancy among women with arrhythmia is critically important to optimize both maternal and fetal outcomes...
May 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28424445/management-of-tachyarrhythmia-during-pregnancy
#9
Emily Ann Enderlin, Khaldia Taufiq Khaled, Luke Oke, Mohammed Madmani, Hakan Paydak
Maternal tachyarrhythmia is a common complication during pregnancy due to hormonal changes that enhance pre-existing arrhythmias or induce new arrhythmias in the presence of congenital heart defects in pregnant females. Presence of tachyarrhythmia during pregnancy poses risk to the mother and fetus, calling for proper treatment with medications. Use of antiarrhythmic drugs in cases of maternal tachyarrhythmia must give due consideration of potential teratogenic side effects. Utilization of antiarrhythmic drugs during pregnancy has been well studied; some result in minimal fetal harm or none at all...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28420371/effect-of-pulmonary-arteriovenous-malformations-on-the-mechanical-properties-of-the-lungs
#10
Cécile Rotenberg, Marcel Bonay, Mostafa El Hajjam, Sandra Blivet, Alain Beauchet, Pascal Lacombe, Thierry Chinet
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) are present in approximately 15-50% individuals with hereditary hemorrhagic telangiectasia (HHT). They may be isolated but more often are multiple. The goal of this study was to evaluate the influence of PAVMs on lung mechanical properties. METHODS: We reviewed the files of all adult patients (age ≥ 18 years) referred to our Center for evaluation of HHT between 2005 and 2013. The diagnosis of HHT was based on the Curacao criteria and/or the presence of a pathogenic mutation...
April 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28418448/%C3%AE-blocker-exposure-in-pregnancy-and-risk-of-fetal-cardiac-anomalies
#11
Lewei Duan, Angie Ng, Wansu Chen, Hillard T Spencer, Jennifer Nguyen, Albert Y-J Shen, Ming-Sum Lee
No abstract text is available yet for this article.
April 17, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28416028/attitudes-and-perceptions-of-pregnant-women-with-chd-results-of-a-single-site-survey
#12
Aarthi Sabanayagam, David Briston, Ali N Zaidi
Introduction CHD occurs in about 1% of the United States population, and is now the most common cardiac condition affecting women during pregnancy. METHODS: An anonymous, single-site, cross-sectional, 50-question survey was performed at a national Adult Congenital Heart Disease conference to assess the level of knowledge, attitudes, and perceptions regarding cardiac care during pregnancy in women with CHD. RESULTS: A total of 77 women completed the survey. Among them, 50% (n=39) had moderate and 38% (n=29) had severely complex disease; 30% (n=23) of women were told that pregnancy was contraindicated given their underlying cardiac condition...
April 18, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28413284/combined-mitral-and-aortic-stenosis-in-parturient-anesthesia-management-for-labor-and-delivery
#13
Manish Kela, Madhvi Buddhi
Maternal heart disease complicates 0.2-3% of pregnancies. The optimal management of the pregnant patient with cardiac disease depends on the co-operative efforts of the obstetrician, the cardiologist and the anesthesiologist involved in peripartum care. A comprehensive understanding of physiology of pregnancy and pathophysiology of underlying cardiac disease is of primary importance in provision of obstetric analgesia or anesthesia for these high-risk groups of patients. We report a successful and uncomplicated use of epidural anesthesia for labor and delivery in patient with combined aortic and mitral stenosis...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28412993/paediatric-onset-coronary-artery-anomalies-in-pregnancy-a-single-centre-experience-and-systematic-literature-review
#14
Michelle Keir, Catriona Bhagra, Debra Vatenmakher, Francisca Arancibia-Galilea, Katrijn Jansen, Norihisa Toh, Candice K Silversides, Jack Colman, Samuel C Siu, Mathew Sermer, Andrew M Crean, Rachel M Wald
OBJECTIVES: Individuals with childhood-onset coronary artery anomalies are at increased risk of lifelong complications. Although pregnancy is thought to confer additional risk, a few data are available regarding outcomes in this group of women. We sought to define outcomes of pregnancy in this unique population. METHODS: We performed a retrospective survey of women with paediatric-onset coronary anomalies and pregnancy in our institution, combined with a systematic review of published cases...
April 17, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28412849/maternal-hemodynamic-changes-and-predictors-of-poor-obstetric-outcome-in-women-with-rheumatic-heart-disease-a-five-year-observational-study
#15
Mohamed Rezk, Osama Elkelani, Abdelhamid Shaheen, Awni Gamal, Hassan Badr
OBJECTIVE: to assess prospectively the maternal cardiovascular hemodynamic changes and obstetric outcome in women with rheumatic heart disease (RHD) and to detect predictors of poor outcome. METHODS: This prospective observational study included 204 pregnant patients with RHD who were divided into two groups; successful pregnancy group with living fetus (n = 126) and poor obstetric outcome group with fetal or neonatal loss (n = 78). Hemodynamic changes, maternal and fetal outcome were assessed and recorded...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28406485/cardiac-hemodynamics-before-during-and-after-elective-cesarean-section-under-spinal-anesthesia-in-low-risk-women
#16
M Ram, A Lavie, S Lev, Y Blecher, U Amikam, Y Shulman, T Avnon, E Weiner, A Many
OBJECTIVE: The aim of this study was to describe maternal central hemodynamic parameters before and during delivery as well at the early puerperium in healthy women undergoing elective cesarean section (CS) at term. STUDY DESIGN: The noninvasive Cardiac System (NICaS, NI Medical, Petah-Tikva, Israel) is a regional impedance device that measures cardiac output (CO) and its derivatives with a good correlation with the gold standard Swan-Ganz catheter. We performed a prospective longitudinal study of healthy women with a singleton pregnancy at term...
April 13, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28403411/comparison-of-bioreactance-and-echocardiographic-non-invasive-cardiac-output-monitoring-and-myocardial-function-assessment-in-primagravida-women
#17
A Doherty, A El-Khuffash, C Monteith, L McSweeney, C Breatnach, E Kent, E Tully, F Malone, P Thornton
Background.: Non-invasive cardiac output monitoring (NICOM) using bioreactance (BRT) in pregnancy is gaining interest but lacks validation. We compared simultaneous cardiac output (CO) measurements obtained using the NICOM ® (BRT-CO) and echocardiography (echo-CO), and assessed the relationship between maternal characteristics and myocardial performance. Methods.: Paired stroke volume (SV) and CO readings were obtained using NICOM ® and echocardiography, in a group of healthy nulliparous women throughout a 15 min period...
April 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28401632/role-of-four-dimensional-echocardiography-with-high-definition-flow-imaging-and-spatiotemporal-image-correlation-in-detecting-fetal-pulmonary-veins
#18
Xue Sun, Ying Zhang, Miao Fan, Yu Wang, Meilian Wang, Faiza Amber Siddiqui, Wei Sun, Feifei Sun, Dongyu Zhang, Wenjia Lei, Guyue Hu
BACKGROUND: Prenatal diagnosis of fetal total anomalous pulmonary vein connection (TAPVC) remains challenging for most screening sonographers. The purpose of this study was to evaluate the use of four-dimensional echocardiography with high-definition flow imaging and spatiotemporal image correlation (4D-HDFI) in identifying pulmonary veins in normal and TAPVC fetuses. MATERIAL & METHODS: We retrospectively reviewed and performed 4D-HDFI in 204 normal and 12 fetuses with confirmed diagnosis of TAPVC...
April 12, 2017: Echocardiography
https://www.readbyqxmd.com/read/28400369/in-utero-particulate-matter-exposure-produces-heart-failure-electrical-remodeling-and-epigenetic-changes-at-adulthood
#19
Vineeta Tanwar, Matthew W Gorr, Markus Velten, Clayton M Eichenseer, Victor P Long, Ingrid M Bonilla, Vikram Shettigar, Mark T Ziolo, Jonathan P Davis, Stephen H Baine, Cynthia A Carnes, Loren E Wold
BACKGROUND: Particulate matter (PM; PM2.5 [PM with diameters of <2.5 μm]) exposure during development is strongly associated with adverse cardiovascular outcomes at adulthood. In the present study, we tested the hypothesis that in utero PM2.5 exposure alone could alter cardiac structure and function at adulthood. METHODS AND RESULTS: Female FVB mice were exposed either to filtered air or PM2.5 at an average concentration of 73.61 μg/m(3) for 6 h/day, 7 days/week throughout pregnancy...
April 11, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28398685/parvovirus-b19-infection-during-pregnancy-and-risks-to-the-fetus
#20
REVIEW
Asher Ornoy, Zivanit Ergaz
Parvovirus B19 infects 1 to 5% of pregnant women, generally with normal pregnancy outcomes. During epidemics, the rate of infection is higher. Major congenital anomalies among offspring of infected mothers are rare, as the virus does not appear to be a significant teratogen. However, parvovirus B19 infection may cause significant fetal damage, and in rare cases, brain anomalies and neurodevelopmental insults, especially if infection occurs in the first 20 weeks of pregnancy. Parvovirus B19 is also an important cause of fetal loss, especially in the second half of pregnancy when spontaneous fetal loss from other causes is relatively rare...
March 15, 2017: Birth Defects Res
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