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Ferreira AF, Azevedo MJ, Morais J, Almeida-Coelho J, Leite-Moreira AM, Lourenço AP, Saraiva F, Diaz SO, Amador AF, Sousa C, Machado AP, Sampaio-Maia B, Ramalho C, Leite-Moreira A, Barros AS, Falcão-Pires I. Stretch-induced compliance mechanism in pregnancy-induced cardiac hypertrophy and the impact of cardiovascular risk factors. Am J Physiol Heart Circ Physiol 2024; 326:H1193-H1203. [PMID: 38334973 DOI: 10.1152/ajpheart.00701.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
Pressure overload-induced hypertrophy compromises cardiac stretch-induced compliance (SIC) after acute volume overload (AVO). We hypothesized that SIC could be enhanced by physiological hypertrophy induced by pregnancy's chronic volume overload. This study evaluated SIC-cardiac adaptation in pregnant women with or without cardiovascular risk (CVR) factors. Thirty-seven women (1st trimester, 1stT) and a separate group of 31 (3rd trimester, 3rdT) women [healthy or with CVR factors (obesity and/or hypertension and/or with gestational diabetes)] underwent echocardiography determination of left ventricular end-diastolic volume (LVEDV) and E/e' before (T0), immediately after (T1), and 15 min after (T2; SIC) AVO induced by passive leg elevation. Blood samples for NT-proBNP quantification were collected before and after the AVO. Acute leg elevation significantly increased inferior vena cava diameter and stroke volume from T0 to T1 in both 1stT and 3rdT, confirming AVO. LVEDV and E/e' also increased immediately after AVO (T1) in both 1stT and 3rdT. SIC adaptation (T2, 15 min after AVO) significantly decreased E/e' in both trimesters, with additional expansion of LVEDV only in the 1stT. NT-pro-BNP increased slightly after AVO but only in the 1stT. CVR factors, but not parity or age, significantly impacted SIC cardiac adaptation. A distinct functional response to SIC was observed between 1stT and 3rdT, which was influenced by CVR factors. The LV of 3rdT pregnant women was hypertrophied, showing a structural limitation to dilate with AVO, whereas the lower LV filling pressure values suggest increased diastolic compliance.NEW & NOTEWORTHY The sudden increase of volume overload triggers an acute myocardial stretch characterized by an immediate rise in contractility by the Frank-Starling mechanism, followed by a progressive increase known as the slow force response. The present study is the first to characterize echocardiographically the stretch-induced compliance (SIC) mechanism in the context of physiological hypertrophy induced by pregnancy. A distinct functional adaptation to SIC was observed between first and third trimesters, which was influenced by cardiovascular risk factors.
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Affiliation(s)
- Ana Filipa Ferreira
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Maria João Azevedo
- Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
- Instituto Nacional de Engenharia Biomédica, Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Academic Center for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Juliana Morais
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Almeida-Coelho
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - André M Leite-Moreira
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
- Anesthesiology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - André P Lourenço
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
- Anesthesiology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Francisca Saraiva
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sílvia O Diaz
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Ana Filipa Amador
- Cardiology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Carla Sousa
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
- Cardiology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Ana Paula Machado
- Obstetrics Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Benedita Sampaio-Maia
- Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
- Instituto Nacional de Engenharia Biomédica, Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Carla Ramalho
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Obstetrics Department, Centro Hospitalar Universitário de São João, Porto, Portugal
- Obstetrics, Gynaecology and Pediatrics Department, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Adelino Leite-Moreira
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
- Cardiothoracic Surgery Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - António S Barros
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Inês Falcão-Pires
- Cardiovascular Research and Development Unit, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
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Ferreira AF, Saraiva F, Diaz SO, Azevedo MJ, Sousa C, Leite-Moreira A, Sampaio-Maia B, Ramalho C, Barros AS, Falcão-Pires I. The impact of echocardiographic indexation to evaluate cardiac reverse remodeling throughout pregnancy and postpartum. Rev Port Cardiol 2024; 43:107-127. [PMID: 37495102 DOI: 10.1016/j.repc.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/17/2023] [Accepted: 04/29/2023] [Indexed: 07/28/2023] Open
Abstract
INTRODUCTION AND OBJECTIVES Echocardiography guidelines suggest normalizing left ventricular (LV) volumes and mass (LVM) to body size. During pregnancy, continuous weight variation impacts on body surface area (BSA) calculation, limiting the longitudinal analysis of cardiac remodeling (CR) and reverse remodeling (RR) variables. Our aim was to identify the most common indexing methodologies in the literature on pregnant populations through a systematic review; and, to compare four scaling methods: (i) none (absolute values); (ii) indexing to the BSA before pregnancy; (iii) allomeric indexing; and (iv) indexing to BSA measured at the same day of cardiac assessment, using an illustrative example. METHODS We performed a systematic review of CR and RR during pregnancy and post-partum, using two databases. We included studies reporting longitudinal echocardiographic analysis of cardiac chamber volumes in humans. We used a prospective cohort study of healthy pregnant women who underwent four echocardiographic evaluations during pregnancy and postpartum, as an illustrative example. RESULTS Twenty-seven studies were included, most studies indexed to BSA measured at each evaluation moment (n=21). Within-subjects design was the most reported to analyse longitudinal data (n=17). Indexation to the pre-pregnancy BSA or application of allometric indexes revealed a higher effect than BSA measured at each evaluation and an equal effect to not indexing using within-subjects design. The within-subjects designs also revealed a higher effect size value than the between-subjects design for longitudinal analysis of LVM adaptations during pregnancy and postpartum. CONCLUSION(S) This study concludes that indexation methods do not impact the clinical interpretation of longitudinal echocardiographic assessment but highlights the need to harmonize normalization procedures during pregnancy.
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Affiliation(s)
- Ana Filipa Ferreira
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal; Cardiothoracic Surgery Department, Centro Hospitalar de São João, Porto, Portugal
| | - Francisca Saraiva
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Sílvia Oliveira Diaz
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Maria João Azevedo
- Faculdade de Medicina Dentária, Universidade do Porto, Portugal; INEB - Instituto Nacional de Engenharia Biomédica, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; Academic Center for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, The Netherlands
| | - Carla Sousa
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal; Cardiology Department, Centro Hospitalar de São João, Porto, Portugal
| | - Adelino Leite-Moreira
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal; Cardiothoracic Surgery Department, Centro Hospitalar de São João, Porto, Portugal
| | - Benedita Sampaio-Maia
- Faculdade de Medicina Dentária, Universidade do Porto, Portugal; INEB - Instituto Nacional de Engenharia Biomédica, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
| | - Carla Ramalho
- Center of Prenatal Diagnosis, Obstetrics Department, Centro Hospitalar de São João, Porto, Portugal; Obstetrics, Gynecology and Pediatrics Department, Faculty of Medicine of the University of Porto, Portugal
| | - António Sousa Barros
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Inês Falcão-Pires
- Cardiovascular R&D Center - UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal.
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Ferreira AF, Azevedo MJ, Morais J, Trindade F, Saraiva F, Diaz SO, Alves IN, Fragão-Marques M, Sousa C, Machado AP, Leite-Moreira A, Sampaio-Maia B, Ramalho C, Barros AS, Falcão-Marques I. Cardiovascular risk factors during pregnancy impact the postpartum cardiac and vascular reverse remodeling. Am J Physiol Heart Circ Physiol 2023; 325:H774-H789. [PMID: 37477690 DOI: 10.1152/ajpheart.00200.2023] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
Pregnant women with cardiovascular risk (CVR) factors are highly prone to develop cardiovascular disease later in life. Thus, recent guidelines suggest extending the follow-up period to 1 yr after delivery. We aimed to evaluate cardiovascular remodeling during pregnancy and determine which CVR factors and potential biomarkers predict postpartum cardiac and vascular reverse remodeling (RR). Our study included a prospective cohort of 76 healthy and 54 obese and/or hypertensive and/or with gestational diabetes pregnant women who underwent transthoracic echocardiography, pulse-wave velocity (PWV), and blood collection at the 1st trimester (1T) and 3rd trimester (3T) of pregnancy as well as at the 1st/6th/12th mo after delivery. Generalized linear mixed-effects models was used to evaluate the extent of RR and its potential predictors. Pregnant women develop cardiac hypertrophy, as confirmed by a significant increase in left ventricular mass (LVM). Moreover, ventricular filling pressure (E/e') and atrial volume increased significantly during gestation. Significant regression of left ventricular (LV) volume, LVM, and filling pressures was observed as soon as 1 mo postpartum. The LV global longitudinal strain worsened slightly and recovered at 6 mo postpartum. PWV decreased significantly from 1T to 3T and normalized at 1 mo postpartum. We found that arterial hypertension, smoking habits, and obesity were independent predictors of increased LVM during pregnancy and postpartum. High C-reactive protein (CRP) and low ST2/IL33-receptor levels are potential circulatory biomarkers of worse LVM regression. Arterial hypertension, age, and gestational diabetes positively correlated with PWV. Altogether, our findings pinpoint arterial hypertension as a critical risk factor for worse RR and CRP, and ST2/IL33 receptors as potential biomarkers of postpartum hypertrophy reversal.NEW & NOTEWORTHY This study describes the impact of cardiovascular risk factors (CVR) in pregnancy-induced remodeling and postpartum reverse remodeling (up to 1 yr) by applying advanced statistic methods (multivariate generalized linear mixed-effects models) to a prospective cohort of pregnant women. Aiming to extrapolate to pathological conditions, this invaluable "human model" allowed us to demonstrate that arterial hypertension is a critical CVR for worse RR and that ST2/IL33-receptors and CRP are potential biomarkers of postpartum hypertrophy reversal.
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Affiliation(s)
- Ana Filipa Ferreira
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Maria João Azevedo
- Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
- INEB-Instituto Nacional de Engenharia Biomédica, Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Academic Center for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Juliana Morais
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Fábio Trindade
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Francisca Saraiva
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Sílvia Oliveira Diaz
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Inês Nuno Alves
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Mariana Fragão-Marques
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
- Department of Clinical Pathology, Centro Hospitalar de São João, Porto, Portugal
| | - Carla Sousa
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
- Department of Cardiology, Centro Hospitalar de São João, Porto, Portugal
| | - Ana Paula Machado
- Center of Prenatal Diagnosis, Department of Obstetrics, Centro Hospitalar de São João, Porto, Portugal
| | - Adelino Leite-Moreira
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
- Department of Cardiothoracic Surgery, Centro Hospitalar de São João, Porto, Portugal
| | - Benedita Sampaio-Maia
- Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
- INEB-Instituto Nacional de Engenharia Biomédica, Porto, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Carla Ramalho
- Center of Prenatal Diagnosis, Department of Obstetrics, Centro Hospitalar de São João, Porto, Portugal
- Department of Obstetrics, Gynaecology and Pediatrics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - António Sousa Barros
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Inês Falcão-Marques
- Department of Surgery and Physiology, Cardiovascular R&D Centre-UnIC@RISE, Faculdade de Medicina, University of Porto, Porto, Portugal
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Curtis SL, Belham M, Bennett S, James R, Harkness A, Gamlin W, Thilaganathan B, Giorgione V, Douglas H, Carroll A, Kitt J, Colebourn C, Ribeiro I, Fairbairn S, Augustine DX, Robinson S, Thorne SA. Transthoracic Echocardiographic Assessment of the Heart in Pregnancy-a position statement on behalf of the British Society of Echocardiography and the United Kingdom Maternal Cardiology Society. Echo Res Pract 2023; 10:7. [PMID: 37076874 PMCID: PMC10116662 DOI: 10.1186/s44156-023-00019-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 03/30/2023] [Indexed: 04/21/2023] Open
Abstract
Pregnancy is a dynamic process associated with profound hormonally mediated haemodynamic changes which result in structural and functional adaptations in the cardiovascular system. An understanding of the myocardial adaptations is important for echocardiographers and clinicians undertaking or interpreting echocardiograms on pregnant and post-partum women. This guideline, on behalf of the British Society of Echocardiography and United Kingdom Maternal Cardiology Society, reviews the expected echocardiographic findings in normal pregnancy and in different cardiac disease states, as well as echocardiographic signs of decompensation. It aims to lay out a structure for echocardiographic scanning and surveillance during and after pregnancy as well as suggesting practical advice on scanning pregnant women.
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Affiliation(s)
- Stephanie L Curtis
- University Hospitals Bristol and Weston NHS Trust, Bristol Heart Institute, Marlborough Street, Bristol, BS2 8HW, UK.
| | - Mark Belham
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sadie Bennett
- University Hospitals of North Midlands, Stoke-On-Trent, UK
| | - Rachael James
- University Hospitals Sussex NHS FT, Brighton, UK
- United Kingdom's Maternal Cardiology Society, London, UK
| | - Allan Harkness
- East Suffolk and North Essex NHS Foundation Trust, Essex, UK
| | - Wendy Gamlin
- North West Heart Centre, Wythenshawe Hospital, Manchester, UK
| | | | | | | | | | - Jamie Kitt
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | | | - Isabel Ribeiro
- University Hospitals Bristol and Weston NHS Trust, Bristol Heart Institute, Marlborough Street, Bristol, BS2 8HW, UK
| | - Sarah Fairbairn
- University Hospitals Bristol and Weston NHS Trust, Bristol Heart Institute, Marlborough Street, Bristol, BS2 8HW, UK
| | - Daniel X Augustine
- Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
- Department for Health, University of Bath, Bath, UK
| | | | - Sara A Thorne
- University Health Network Toronto, Toronto General Hospital & Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
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Heemelaar JC, Heemelaar S, Hertel SN, Jukema JW, Sueters M, Louwerens M, Antoni ML. Cardiac and obstetric outcomes of pregnancies for women after cardiotoxic therapy in childhood: a single center observational study. BMC Cancer 2023; 23:115. [PMID: 36732710 PMCID: PMC9893596 DOI: 10.1186/s12885-023-10578-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/11/2023] [Accepted: 01/24/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Childhood cancer survivors (CCS) are at increased risk of cardiomyopathy during pregnancy if they have prior cardiotoxic exposure. Currently, there is no consensus on the necessity, timing and modality of cardiac monitoring during and after pregnancy. Therefore, we examined cardiac function using contemporary echocardiographic parameters during pregnancy in CCS with cardiotoxic treatment exposure, and we observed obstetric outcomes in CCS, including in women without previous cardiotoxic treatment exposure. METHOD A single-center retrospective cohort study was conducted among 39 women enrolled in our institution's cancer survivorship outpatient clinic. Information on potential cardiotoxic exposure in childhood, cancer diagnosis and outcomes of all pregnancies were collected through interviews and review of health records. Echocardiographic exams before and during pregnancy were retrospectively analyzed for left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS) if available. The primary outcomes were (i) left ventricular dysfunction (LVD) during pregnancy, defined as LVEF < 50% or a decline of ≥ 10% in LVEF below normal (< 54%), and (ii) symptomatic heart failure (HF). Rate of obstetric and fetal complications was compared to the general population through the national perinatal registry (PERINED). RESULTS All pregnancies (91) of 39 women were included in this study. The most common malignancy was leukemia (N = 17, 43.6%). In 22 patients, echocardiograms were retrospectively analyzed. LVEFbaseline was 55.4 ± 1.2% and pre-existing subnormal LVEF was common (7/22, 31.8/%). The minimum value of LVEF during pregnancy was 3.8% lower than baseline (p = 0.002). LVD occurred in 9/22 (40.9%) patients and HF was not observed. When GLS was normal at baseline (< -18.0%; N = 12), none of the women developed LVD. Nine of out ten women with abnormal GLS at baseline developed LVD later in pregnancy. In our cohort, the obstetric outcomes seemed comparable with the general population unless patients underwent abdominal irradiation (N = 5), where high rates of preterm birth (only 5/18 born at term) and miscarriage (6/18 pregnancies) were observed. CONCLUSION Our study suggests that women with prior cardiotoxic treatment have a low risk of LVD during pregnancy if GLS at baseline was normal. Pregnancy outcomes are similar to the healthy population except when patients underwent abdominal irradiation.
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Affiliation(s)
- Julius C. Heemelaar
- grid.10419.3d0000000089452978Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Steffie Heemelaar
- grid.10419.3d0000000089452978Department of Obstetrics and Gynaecology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Svenja N. Hertel
- grid.10419.3d0000000089452978Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - J. Wouter Jukema
- grid.10419.3d0000000089452978Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands ,grid.411737.7Netherlands Heart Institute, Moreelsepark 1, 3511 EP Utrecht, The Netherlands
| | - Marieke Sueters
- grid.10419.3d0000000089452978Department of Obstetrics and Gynaecology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Marloes Louwerens
- grid.10419.3d0000000089452978Department of Internal Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - M. Louisa Antoni
- grid.10419.3d0000000089452978Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
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Kawamatsu N, Ishizu T, Kawakami Y. What We Know and What We Don't Know About the Adaptation to Pregnancy and Left Ventricular Diastolic Dysfunction. Circ J 2019; 83:2205-2207. [PMID: 31611538 DOI: 10.1253/circj.cj-19-0827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Naoto Kawamatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Tomoko Ishizu
- Department of Clinical Laboratory Medicine, Faculty of Medicine, University of Tsukuba
| | - Yasushi Kawakami
- Department of Clinical Laboratory Medicine, Faculty of Medicine, University of Tsukuba
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