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Malakan Rad E, Elhamian R, Zanjani KS, Shabanian R, Moghadam EA, Majnoon MT, Zeinaloo A. Echocardiographic estimation of pulmonary arterial and right atrial pressures in children with congenital heart disease: a comprehensive prospective study and introduction of novel equations. J Cardiovasc Imaging 2024; 32:23. [PMID: 39113161 PMCID: PMC11308456 DOI: 10.1186/s44348-024-00023-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/03/2023] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Pediatric pulmonary hypertension (PH) is characterized by a mean pulmonary arterial pressure exceeding 20 mmHg. There is limited research on the suitability of adult-based methods for estimating PH in pediatric populations. Using established formulas for adults, this study aimed to evaluate the correlation between echocardiographic estimates of systolic, diastolic, and mean pulmonary arterial pressures, and mean right atrial pressures in children with congenital heart disease (CHD). METHODS A prospective study was conducted involving children with CHD undergoing cardiac catheterization without prior cardiac surgery. We used echocardiography to estimate pulmonary and right atrial pressures and compared these with invasively measured values. Four reliable regression equations were developed to estimate systolic, diastolic, and mean pulmonary arterial pressures, and mean right atrial pressures. Cutoff values were determined to predict the occurrence of PH. Linear regression, Bland-Altman analysis, and receiver operating characteristic curve analysis were performed to assess the accuracy of echocardiography and establish diagnostic thresholds for PH. RESULTS The study involved 55 children (23 with normal pulmonary arterial pressure and 32 with PH) with acyanotic CHD aged 1 to 192 months. Four equations were developed to detect high pulmonary arterial pressures, with cutoff values of 32.9 for systolic pulmonary arterial pressure, 14.95 for diastolic pulmonary arterial pressure, and 20.7 for mean pulmonary arterial pressure. The results showed high sensitivity and moderate specificity but a tendency to underestimate systolic and mean pulmonary arterial pressures at higher pressures. CONCLUSIONS The study provides valuable insights into the use of adult-based echocardiographic formulas for estimating PH in pediatric patients with acyanotic CHD.
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Affiliation(s)
- Elaheh Malakan Rad
- Department of Pediatric Cardiology, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran.
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran.
| | - Reza Elhamian
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
| | - Keyhan Sayadpour Zanjani
- Department of Pediatric Cardiology, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Shabanian
- Hakim Children's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Aghaei Moghadam
- Department of Pediatric Cardiology, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamad Taghi Majnoon
- Department of Pediatric Cardiology, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
| | - Aliakbar Zeinaloo
- Department of Pediatric Cardiology, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
- Fetal and Pediatric Cardiovascular Research Center, Children's Medical Center (Pediatric Center of Excellence), Tehran University of Medical Sciences, Tehran, Iran
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Gopagondanahalli KR, Abdul Haium AA, Vora SJ, Sundararaghavan S, Ng WD, Choo TLJ, Ang WL, Binte Mohamad Taib NQ, Wijedasa NHY, Rajadurai VS, Yeo KT, Tan TH. Serial tissue Doppler imaging in the evaluation of bronchopulmonary dysplasia-associated pulmonary hypertension among extremely preterm infants: a prospective observational study. Front Pediatr 2024; 12:1349175. [PMID: 38646509 PMCID: PMC11026596 DOI: 10.3389/fped.2024.1349175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/18/2024] [Indexed: 04/23/2024] Open
Abstract
Objectives To evaluate serial tissue Doppler cardiac imaging (TDI) in the evolution of bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH) among extremely preterm infants. Design Prospective observational study. Setting Single-center, tertiary-level neonatal intensive care unit. Patients Infant born <28 weeks gestation. Main outcome measures Utility of TDI in the early diagnosis and prediction of BPD-PH and optimal timing for screening of BPD-PH. Results A total of 79 infants were included. Of them, 17 (23%) had BPD-PH. The mean gestational age was 25.9 ± 1.1 weeks, and mean birth weight was 830 ± 174 g. The BPD-PH group had a high incidence of hemodynamically significant patent ductus arteriosus (83% vs. 56%, p < 0.018), longer oxygen days (96.16 ± 68.09 vs. 59.35 ± 52.1, p < 0.008), and prolonged hospital stay (133.8 ± 45.9 vs. 106.5 ± 37.9 days, p < 0.005). The left ventricular eccentricity index (0.99 ± 0.1 vs. 1.1 ± 0.7, p < 0.01) and the ratio of acceleration time to right ventricular ejection time showed a statistically significant trend from 33 weeks (0.24 ± 0.05 vs. 0.28 ± 0.05, p < 0.05). At 33 weeks, the BPD-PH group showed prolonged isovolumetric contraction time (27.84 ± 5.5 vs. 22.77 ± 4, p < 0.001), prolonged isovolumetric relaxation time (40.3 ± 7.1 vs. 34.9 ± 5.3, p < 0.003), and abnormal myocardial performance index (0.39 ± 0.05 vs. 0.32 ± 0.03, p < 0.001). These differences persisted at 36 weeks after conceptional gestational age. Conclusions TDI parameters are sensitive in the early evolution of BPD-PH. Diagnostic accuracy can be increased by combining the TDI parameters with conventional echocardiographic parameters. BPD-PH can be recognizable as early as 33-34 weeks of gestation.
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Affiliation(s)
- Krishna Revanna Gopagondanahalli
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Abdul Alim Abdul Haium
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Shrenik Jitendrakumar Vora
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Sreekanthan Sundararaghavan
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
- Department of Paediatric Cardiology, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - Wei Di Ng
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Tze Liang Jonathan Choo
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
- Department of Paediatric Cardiology, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - Wai Lin Ang
- Department of Paediatric Cardiology, KK Women’s and Children’s Hospital, Singapore, Singapore
| | | | | | - Victor Samuel Rajadurai
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Kee Thai Yeo
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore, Singapore
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
| | - Teng Hong Tan
- Yong Loo Ling Schoolof Medicine, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Duke—NUS Medical School, Singapore, Singapore
- Department of Paediatric Cardiology, KK Women’s and Children’s Hospital, Singapore, Singapore
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3
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Johansson MC, Rosengren A, Fu M. Echocardiographic diagnosis of heart failure with preserved ejection fraction in elderly patients with hypertension. SCAND CARDIOVASC J 2022; 56:368-377. [PMID: 36266943 DOI: 10.1080/14017431.2022.2129777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/15/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Objectives. The aim of this study is to evaluate the diagnostic performance of echocardiography for the diagnosis of heart failure with preserved ejection fraction (HFpEF) in the elderly and to validate the Heart Failure Association diagnostic algorithm (HFA-PEFF). Design. A case-control study was conducted in patients with hypertension with or without HFpEF who were matched for age (n = 33; 78.4 ± 5.3 years) and sex. Participants underwent echocardiography including assessment of left atrial (LA) volume index (LAVI), early mitral filling to early diastolic mitral annulus velocity ratio (E/e'), LA reservoir strain (LASr), tissue Doppler LA contraction (a'), right ventricular isovolumic relaxation time (RVIVRT), and a 6-minute walk test (6-MWT). The filling pressure algorithm from the European association of cardiovascular imaging (EACVI) 2021 was applied. The HFA-PEFF score was also applied, using echocardiography parameters and the value of NT pro-BNP, without considering symptomatic status. Results. Echocardiographic parameters identified patients with HFpEF with an area under the curve (AUC) >0.9 for E/e', RVIVRT, LASr, a', and the ratio of LAVI/a'. LASr correlated with 6-MWT (r = 0.59, p = .0003). The EACVI algorithm classified all controls with normal filling pressure and 94% of patients with HFpEF with increased filling pressure. When the HFA-PEFF diagnostic algorithm was validated, a high score (≥5 points) had 100% sensitivity for HFpEF, while 88% of controls had intermediate scores (2-4 points). Conclusion. The EACVI filling pressure algorithm, RVIVRT, LASr, and the ratio LAVI/a' were accurate for diagnosing HFpEF in elderly patients with hypertension. The HFA-PEFF score had high sensitivity but limited ability to exclude HFpEF.
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Affiliation(s)
- Magnus C Johansson
- Department of Clinical Physiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Michael Fu
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Wu J, Huang X, Huang K, Gao Q, Tian Y, Lin B, Tang Y, Chen X, Su M. Correlations among noninvasive right ventricular myocardial work indices and the main parameters of systolic and diastolic functions. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:873-884. [PMID: 36069462 PMCID: PMC9540218 DOI: 10.1002/jcu.23284] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/14/2022] [Accepted: 06/19/2022] [Indexed: 05/17/2023]
Abstract
BACKGROUND Right ventricular (RV) myocardial work (RVMW) is the latest method used to assess RV function. To date, correlations among RVMW indices and RV systolic and diastolic functions have not been studied. METHODS A total of 106 healthy volunteers (median age, 34 years; 46% male) were prospectively enrolled. RVMW indices were measured using the RV pressure-strain loop using specific software. The correlations among RVMW indices and other RV functions were analyzed. RESULTS During the multivariate analysis, the RV global work index (RVGWI) was significantly correlated with RV global longitudinal strain (RV GLS) (p < .0001), pulmonary systolic artery pressure (PASP) (p < .0001), and tricuspid annular (TA) plane systolic excursion (TAPSE) (p = .036). RV global constructive work (RVGCW) was correlated with RV GLS (p < .0001) and PASP (p < .0001). RV global wasted work (RVGWW) was correlated with RV GLS (p = .008) and TA isovolumetric acceleration (TA IVA) (p = .008). RV global work efficiency (RVGWE) was correlated with RV GLS (p < .0001) and tissue Doppler (TD) RV myocardial performance index (TD RMPI) (p = .043). CONCLUSION RVMW indices showed good correlations with RV myocardial systolic function.
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Affiliation(s)
- Jian Wu
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Xinyi Huang
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Kunhui Huang
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Qiumei Gao
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Yuan Tian
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Biqin Lin
- Department of Ultrasonography, Xiamen Humanity HospitalFujian Medical UniversityXiamenChina
| | - Yiruo Tang
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Xu Chen
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
| | - Maolong Su
- Department of Ultrasonography, Xiamen Cardiovascular Hospital of Xiamen University, School of MedicineXiamen UniversityXiamenChina
- Xiamen Key Laboratory of Precision Medicine for Cardiovascular DiseaseXiamenChina
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5
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Left Ventricle Phenotyping Utilizing Tissue Doppler Imaging in Premature Infants with Varying Severity of Bronchopulmonary Dysplasia. J Clin Med 2021; 10:jcm10102211. [PMID: 34065264 PMCID: PMC8160781 DOI: 10.3390/jcm10102211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/14/2021] [Indexed: 12/16/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is characterized by alveolar-capillary simplification and is associated with pulmonary hypertension (PH) in preterm infants. The contribution of left ventricle (LV) disease towards this severe BPD-PH phenotype is not well established. We aimed to describe the longitudinal trajectory of the LV function as measured by tissue Doppler imaging (TDI) and its association with BPD-PH. We retrospectively assessed prospectively acquired clinical and echocardiographic data from 77 preterm infants born between 2011 and 2013. We characterized the LV function by measuring systolic and diastolic myocardial velocities (s’, e’, a’), isovolumetric relaxation time (IVRT), and myocardial performance index with TDI at three time periods from 32 and 36 weeks, postmenstrual age through one year of age. We also measured post systolic motion (PSM), a marker of myocardial dysfunction that results from asynchronous movement of the ventricular walls, and not previously described in preterm infants. Patients were stratified into groups according to BPD severity and the presence of PH and compared over time. Conventional TDI measures of the LV function were similar between groups, but the septal PSM was significantly prolonged over the first year of age in patients with BPD-PH. PSM provides a novel objective way to assess the hemodynamic impact of lung and pulmonary vascular disease severity on LV function in preterm infants with BPD and PH.
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6
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Right Ventricular Diastolic Dysfunction after Marathon Run. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17155336. [PMID: 32722206 PMCID: PMC7432325 DOI: 10.3390/ijerph17155336] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/28/2022]
Abstract
It has been raised that marathon running may significantly impair cardiac performance. However, the post-race diastolic function has not been extensively analyzed. We aimed to assess whether the marathon run causes impairment of the cardiac diastole, which ventricle is mostly affected and whether the septal (IVS) function is altered. The study included 34 male amateur runners, in whom echocardiography was performed two weeks before, at the finish line and two weeks after the marathon. Biventricular diastolic function was assessed not only with conventional Doppler indices but also using the heart rate-adjusted isovolumetric relaxation time (IVRTc). After the run, IVRTc elongated dramatically at the right ventricular (RV) free wall, to a lesser extent at the IVS and remained unchanged at the left ventricular lateral wall. The post-run IVRTc_IVS correlated with IVRTc_RV (r = 0.38, p < 0.05), and IVRTc_RV was longer in subjects with IVS hypertrophy (88 vs. 51 ms; p < 0.05). Participants with measurable IVRT_RV at baseline (38% of runners) had longer post-race IVRTc_IVS (102 vs. 83 ms; p < 0.05). Marathon running influenced predominantly the RV diastolic function, and subjects with measurable IVRT_RV at baseline or those with IVS hypertrophy can experience greater post-race diastolic fatigue.
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El-Fatah SRA, El-Hefny RA, Ahmed RI, El-Tawab DMA. Lung rockets and pulmonary functions. THE EGYPTIAN JOURNAL OF BRONCHOLOGY 2019. [DOI: 10.4103/ejb.ejb_55_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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8
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Domenech-Ximenos B, Garza MSDL, Prat-González S, Sepúlveda-Martínez Á, Crispi F, Perea RJ, Garcia-Alvarez A, Sitges M. Exercise-induced cardio-pulmonary remodelling in endurance athletes: Not only the heart adapts. Eur J Prev Cardiol 2019; 27:651-659. [PMID: 31423814 DOI: 10.1177/2047487319868545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The cumulative effects of intensive endurance exercise may induce a broad spectrum of right ventricular remodelling. The mechanisms underlying these variable responses have been scarcely explored, but may involve differential pulmonary vasculature adaptation. Our aim was to evaluate right ventricular and pulmonary circulation in highly trained endurance athletes. METHODS Ninety-three highly trained endurance athletes (>12 h training/week at least during the last five years; age: 36 ± 6 years; 52.7% male) and 72 age- and gender-matched controls underwent resting cardiovascular magnetic resonance imaging to assess cardiac dimensions and function, as well as pulmonary artery dimensions and flow. Pulmonary vascular resistance (PVR) was estimated based on left ventricular ejection fraction and pulmonary artery flow mean velocity. Resting and exercise Doppler echocardiography was also performed in athletes to estimate pulmonary artery pressure. RESULTS Athletes showed larger biventricular and biatrial sizes, slightly reduced systolic biventricular function, increased pulmonary artery dimensions and reduced pulmonary artery flow velocity as compared with controls in both genders (p < 0.05), which resulted in significantly higher estimated PVR in athletes as compared with controls (2.4 ± 1.2 vs. 1.7 ± 1.1; p < 0.05). Substantially high estimated PVR values (>4.2 WU) were found in seven of the 93 (9.3%) athletes: those exhibiting an enlarged pulmonary artery (indexed area cm2/m2: 4.8 ± 0.6 vs. 3.9 ± 0.6, p < 0.05), a decreased pulmonary artery distensibility index (%: 43.0 ± 15.2 vs. 62.0 ± 17.4, p < 0.05) and a reduced right ventricular ejection fraction (%: 49.3 ± 4.5 vs. 53.6 ± 4.6, p < 0.05). CONCLUSIONS Exercise-induced remodelling involves, besides the cardiac chambers, the pulmonary circulation and is associated with an increased estimated PVR. A small subset of athletes exhibited substantial increase of estimated PVR related to pronounced pulmonary circulation remodelling and reduced right ventricular systolic function.
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Affiliation(s)
- Blanca Domenech-Ximenos
- Radiology Department, Hospital Universitari Dr. Josep Trueta, Girona, Spain.,Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Maria Sanz-de la Garza
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Barcelona, Spain
| | - Susanna Prat-González
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Álvaro Sepúlveda-Martínez
- Barcelona Centre for Maternal-Foetal and Neonatal Medicine Hospital Clínic and Hospital Sant Joan de Deu, Barcelona University, CIBER-ER, Spain.,Foetal Medicine Unit, Department of Obstetrics and Gynaecology, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile
| | - Fatima Crispi
- Barcelona Centre for Maternal-Foetal and Neonatal Medicine Hospital Clínic and Hospital Sant Joan de Deu, Barcelona University, CIBER-ER, Spain
| | | | - Ana Garcia-Alvarez
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Barcelona, Spain
| | - Marta Sitges
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Barcelona, Spain
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Chuiko GP, Dvornik OV, Shyian SI, Baganov YA. Blood hammer phenomenon in human aorta: Theory and modeling. Math Biosci 2018; 303:148-154. [PMID: 30036543 DOI: 10.1016/j.mbs.2018.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/28/2018] [Accepted: 06/06/2018] [Indexed: 01/25/2023]
Abstract
This paper contains the results of computing of a blood pressure and a flow speed in a human aorta in a diastolic phase of a heart cycle. The model is based on the one-dimensional flow approach. The blood hammer effect means abrupt increasing of pressure in a blood vessels due to the sharp changes in flow speed. The closing of aortic valve at the proto-diastole phase causes such blood hammer. We consider an aorta as a simple cylindrical conduit with elastic walls. The aortic valve and the bifurcation were located in the opposite ends of the conduit. The analysis of possible types of blood hammer effect in the "conduit-blood" system was performed. The lifelike initial and boundary conditions for the problem were proposed. We found a strong peak of pressure during the first third of diastole at the normal closure of the aortic valve. We observed the minor fluctuations of pressure in the later part of diastole too. Blood flow speed also has minor oscillations during the diastole. Such results are typical under the complete blood hammer effect condition. An abnormal long valve closure causes an incomplete blood hammer effect. In that case the calculated oscillations of the flow speed had higher intensity without strong pressure peak. The Fourier spectra of pressure fluctuations are located in the range of 16-87 Hz, that is nearby to known frequencies of the second heart sound produced by aortic valve.
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Affiliation(s)
- G P Chuiko
- Petro Mohyla Black Sea National University, 68 Desantnikov St., 10, Mykolayiv 54003, Ukraine.
| | - O V Dvornik
- Petro Mohyla Black Sea National University, 68 Desantnikov St., 10, Mykolayiv 54003, Ukraine.
| | - S I Shyian
- Petro Mohyla Black Sea National University, 68 Desantnikov St., 10, Mykolayiv 54003, Ukraine.
| | - Ye A Baganov
- Kherson National Technical University, 24 Berislavske shose, Kherson 73008, Ukraine; Kherson State Maritime Academy, 20 Ushakova avenue, Kherson 73000, Ukraine.
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10
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Kasprzak JD, Huttin O, Wierzbowska-Drabik K, Selton-Suty C. Imaging the Right Heart-Pulmonary Circulation Unit. Heart Fail Clin 2018; 14:361-376. [DOI: 10.1016/j.hfc.2018.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Amsallem M, Boulate D, Kooreman Z, Zamanian RT, Fadel G, Schnittger I, Fadel E, McConnell MV, Dhillon G, Mercier O, Haddad F. Investigating the value of right heart echocardiographic metrics for detection of pulmonary hypertension in patients with advanced lung disease. Int J Cardiovasc Imaging 2017; 33:825-835. [PMID: 28120156 DOI: 10.1007/s10554-017-1069-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 01/10/2017] [Indexed: 10/20/2022]
Abstract
This study determined whether novel right heart echocardiography metrics help to detect pulmonary hypertension (PH) in patients with advanced lung disease (ALD). We reviewed echocardiography and catheterization data of 192 patients from the Stanford ALD registry and echocardiograms of 50 healthy controls. Accuracy of echocardiographic right heart metrics to detect PH was assessed using logistic regression and area under the ROC curves (AUC) analysis. Patients were divided into a derivation (n = 92) and validation cohort (n = 100). Experimental validation was assessed in a piglet model of mild PH followed longitudinally. Tricuspid regurgitation (TR) was not interpretable in 52% of patients. In the derivation cohort, right atrial maximal volume index (RAVI), ventricular end-systolic area index (RVESAI), free-wall longitudinal strain and tricuspid annular plane systolic excursion (TAPSE) differentiated patients with and without PH; 20% of patients without PH had moderate to severe RV enlargement by RVESAI. On multivariate analysis, RAVI and TAPSE were independently associated with PH (AUC = 0.77, p < 0.001), which was confirmed in the validation cohort (0.78, p < 0.001). Presence of right heart metrics abnormalities did not improve detection of PH in patients with interpretable TR (p > 0.05) and provided moderate detection value in patients without TR. Only two patients with more severe PH (mean pulmonary pressure 35 and 36 mmHg) were missed. The animal model confirmed that right heart enlargement discriminated best pigs with PH from shams. This study highlights the frequency of right heart enlargement and dysfunction in ALD irrespectively from presence of PH, therefore limiting their use for detection of PH.
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Affiliation(s)
- Myriam Amsallem
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA. .,Stanford Cardiovascular Institute, 300 Pasteur Drive, Stanford, CA, 94305, USA.
| | - David Boulate
- Laboratoire de Recherche Chirurgicale, Marie Lannelongue Hospital, University of Paris Sud, Le Plessis Robinson, France
| | - Zoe Kooreman
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Roham T Zamanian
- Division of Pulmonary and Critical Care Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, CA, USA
| | - Guillaume Fadel
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Elie Fadel
- Laboratoire de Recherche Chirurgicale, Marie Lannelongue Hospital, University of Paris Sud, Le Plessis Robinson, France
| | - Michael V McConnell
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Gundeep Dhillon
- Division of Pulmonary and Critical Care Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Olaf Mercier
- Laboratoire de Recherche Chirurgicale, Marie Lannelongue Hospital, University of Paris Sud, Le Plessis Robinson, France
| | - François Haddad
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
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12
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Parsaee M, Ghaderi F, Alizadehasl A, Bakhshandeh H. Time From the Beginning of the Right Ventricle Isovolumetric Contraction to the Peak of the S Wave: A New TDI Indicator for the Non-Invasive Estimation of Pulmonary Hypertension. Res Cardiovasc Med 2016; 5:e26494. [PMID: 27800451 PMCID: PMC5075392 DOI: 10.5812/cardiovascmed.26494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 10/21/2015] [Accepted: 11/03/2015] [Indexed: 11/16/2022] Open
Abstract
Background Echocardiography is a key screening tool in the diagnostic algorithm of pulmonary hypertension (PH). In addition, tissue doppler imaging (TDI) is a promising method for the noninvasive estimation of pulmonary artery pressure (PAP). Objectives The aim of this study was to validate the accuracy of measuring the time from the beginning of the right ventricular isovolumetric contraction time (RV IVRT) to the peak of the S wave in the TDI of the base of the RV free wall (time to peak or TTP), as an indicator for the non-invasive estimation of pulmonary hypertension. Patients and Methods In this diagnostic test study, 60 consecutive patients referred for right heart catheterization (RHC) were enrolled. A pulse-wave TDI was performed before the cardiac catheterization, with a mean interval of 1 hour between the two measurements. The TDI variables, such as the RV IVRT, myocardial performance index (MPI), and the new “time to peak” parameter, were measured at the lateral basal RV free wall. The patients were divided into two sub-groups according to the RHC findings: no-PH (mean PAP < 25 mmHg) and PH (mean PAP ≥ 25 mmHg) groups. Then, we calculated the specificity and sensitivity of the TDI parameters (including the TTP) for the diagnosis of PH. Results In our study, the TTP showed a significant inverse relationship with the PAP. Based on our results, a TTP of less than 127 ms could be used to predict PH, with a sensitivity and specificity of about 70% (AUC = 0.746 ± 0.064). Conclusions Based on the results of this study, we suggest the use of a novel “time from the beginning of isovolumetric contraction to the peak of the S wave” (TTP) parameter in the TDI of the base of the RV free wall to predict PH with acceptable accuracy in comparison with RHC.
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Affiliation(s)
- Mozhgan Parsaee
- Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran
| | - Fereshteh Ghaderi
- Department of Cardiovascular Medicine, Echocardiography laboratory, Atherosclerosis Prevention Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, IR Iran
- Corresponding author: Fereshteh Ghaderi, Department of Cardiovascular Medicine, Echocardiography laboratory, Atherosclerosis Prevention Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, IR Iran. Tel: +98-9137913316, Fax: +98-5138544504, E-mail:
| | - Azin Alizadehasl
- Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran
| | - Hooman Bakhshandeh
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran
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13
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Yajamanyam PK, Negrine RJS, Rasiah SV, Zamora J, Ewer AK. Assessment of myocardial function in preterm infants with chronic lung disease using tissue Doppler imaging. Arch Dis Child Fetal Neonatal Ed 2016; 101:F527-F532. [PMID: 27048431 DOI: 10.1136/archdischild-2015-308929] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 02/17/2016] [Accepted: 03/12/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To assess myocardial function and presence of pulmonary hypertension (PH) using both tissue Doppler imaging (TDI) and conventional echocardiography in preterm infants of <32 weeks gestation with chronic lung disease (CLD). DESIGN Prospective observational study. SETTING Tertiary neonatal intensive care unit. PATIENTS Three groups of preterm infants were recruited. Group 1-CLD receiving positive pressure airway support including high-flow humidified nasal cannula oxygen (n=25), group 2-CLD receiving low-flow nasal oxygen (n=25) and group 3-no CLD (n=22). METHODS Echocardiography was performed around 36 weeks corrected gestational age. Myocardial function and PH were assessed using both conventional (left ventricular fractional shortening (LVFS) and left ventricular output (LVO), tricuspid regurgitation and ventricular septal flattening) and TDI techniques (myocardial velocities, myocardial performance index (MPI) and right ventricular isovolumetric relaxation time (RV-IVRT)). RESULTS The MPI of right ventricle (RV) and left ventricle (LV) was significantly higher in CLD infants: mean RV MPI group 1-0.79, group 2-0.65 and group3-0.52. LV MPI: group 1-0.77, group 2-0.70 and group 3-0.45. There was a trend towards higher MPIs in group 1 compared with group 2. LVFS and LVO were similar across all three groups. RV-IVRT was also significantly higher in infants with CLD infants (group 1-64 milliseconds, group 2-62 milliseconds and group 3-52 milliseconds). PH was not detected by conventional echocardiography. CONCLUSIONS Infants with CLD have evidence of relative biventricular dysfunction and higher pulmonary arterial blood pressure as demonstrated by TDI, which were not detected by conventional echocardiography.
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Affiliation(s)
- Phani Kiran Yajamanyam
- Department of Neonatology, Liverpool Women's Hospital NHS Foundation Trust, Liverpool, UK
| | - Robert J S Negrine
- Department of Neonatology, Birmingham Women's Hospital NHS Foundation Trust, Birmingham, UK
| | - Shree Vishna Rasiah
- Department of Neonatology, Birmingham Women's Hospital NHS Foundation Trust, Birmingham, UK
| | - Javier Zamora
- Clinical Biostatistics Unit, Hospital Ramon y Cajal (IRYCIS-CIBERESP), Madrid, Spain.,Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Andrew K Ewer
- Department of Neonatology, Birmingham Women's Hospital NHS Foundation Trust, Birmingham, UK.,Institute of Metabolism and Systems Research, University of Birmingham, UK
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14
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Amsallem M, Kuznetsova T, Hanneman K, Denault A, Haddad F. Right heart imaging in patients with heart failure: a tale of two ventricles. Curr Opin Cardiol 2016; 31:469-82. [PMID: 27467173 PMCID: PMC5133417 DOI: 10.1097/hco.0000000000000315] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
PURPOSE OF REVIEW The purpose is to describe the recent advances made in imaging of the right heart, including deformation imaging, tissue, and flow characterization by MRI, and molecular imaging. RECENT FINDINGS Recent developments have been made in the field of deformation imaging of the right heart, which may improve risk stratification of patients with heart failure and pulmonary hypertension. In addition, more attention has been given to load adaptability metrics of the right heart; these simplified indices, however, still face challenges from a conceptual point of view. The emergence of novel MRI sequences, such as native T1 mapping, allows better detection and quantification of myocardial fibrosis and could allow better prediction of postsurgical recovery of the right heart. Other advances in MRI include four-dimensional flow imaging, which may be particularly useful in congenital heart disease or for the detection of early stages of pulmonary vascular disease. SUMMARY The review will place the recent developments in right heart imaging in the context of clinical care and research.
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Affiliation(s)
- Myriam Amsallem
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Tatiana Kuznetsova
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Belgium
| | - Kate Hanneman
- Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - Andre Denault
- Department of Anesthesiology and Critical Care Division, CHUM and Montreal Heart Institute, Montreal, QC, Canada
| | - François Haddad
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
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15
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Hou Y, Sun DD, Yuan LJ, Zhu XY, Shang FJ, Hou CJ, Duan YY. Clinical Application of Superior Vena Cava Spectra in Evaluation of Pulmonary Hypertension: A Comparative Echocardiography and Catheterization Study. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:110-117. [PMID: 26478279 DOI: 10.1016/j.ultrasmedbio.2015.07.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 06/25/2015] [Accepted: 07/27/2015] [Indexed: 06/05/2023]
Abstract
This study was designed to assess whether superior vena cava (SVC) Doppler flow velocities are associated with invasive measures of pulmonary arterial pressure. Eighty patients with unrepaired congenital heart disease who underwent cardiac catheterization were included (31 men, 49 women; mean age: 37.3 ± 14.7 y). Compared with the non-pulmonary hypertension group, the moderate and severe pulmonary hypertension groups had decreased SVC ventricular reserve flow velocity and a significantly increased ratio of atrial reverse flow to systolic flow (AR/S). AR/S correlated significantly with invasive pulmonary arterial systolic pressure (r = 0.426, p < 0.0001). A cutoff of 0.45 had a sensitivity and specificity of 74% and 80%, respectively, for prediction of pulmonary hypertension. Good correlation also existed between SVC AR/S and pulmonary arterial systolic pressure in cases without tricuspid regurgitation (r = 0.706, p = 0.034). These results indicate that SVC AR/S may be an alternative method for assessing pulmonary hypertension.
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Affiliation(s)
- Ying Hou
- Department of Ultrasound Diagnosis, Tangdu Hospital of the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dan-Dan Sun
- Department of Ultrasound Diagnosis, Tangdu Hospital of the Fourth Military Medical University, Xi'an, Shaanxi, China; Department of Stomatology and Medical Imaging, Jilin Medical College, Jilin, Jilin, China
| | - Li-Jun Yuan
- Department of Ultrasound Diagnosis, Tangdu Hospital of the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xian-Yang Zhu
- Department of Congenital Heart Disease Internal, General Hospital of Shenyang Military Area Command, Shenhe District, Shenyang, China
| | - Fu-Jun Shang
- Department of Cardiology, Tangdu Hospital of the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chuan-Ju Hou
- Department of Congenital Heart Disease Internal, General Hospital of Shenyang Military Area Command, Shenhe District, Shenyang, China
| | - Yun-You Duan
- Department of Ultrasound Diagnosis, Tangdu Hospital of the Fourth Military Medical University, Xi'an, Shaanxi, China.
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16
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Axell RG, Hoole SP, Hampton-Till J, White PA. RV diastolic dysfunction: time to re-evaluate its importance in heart failure. Heart Fail Rev 2015; 20:363-73. [PMID: 25633340 DOI: 10.1007/s10741-015-9472-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Right ventricular (RV) diastolic dysfunction was first reported as an indicator for the assessment of ventricular dysfunction in heart failure a little over two decades ago. However, the underlying mechanisms and precise role of RV diastolic dysfunction in heart failure remain poorly described. Complexities in the structure and function of the RV make the detailed assessment of the contractile performance challenging when compared to its left ventricular (LV) counterpart. LV dysfunction is known to directly affect patient outcome in heart failure. As such, the focus has therefore been on LV function. Nevertheless, a strategy for the diagnosis and assessment of RV diastolic dysfunction has not been established. Here, we review the different causal mechanisms underlying RV diastolic dysfunction, summarising the current assessment techniques used in a clinical environment. Finally, we explore the role of load-independent indices of RV contractility, derived from the conductance technique, to fully interrogate the RV and expand our knowledge and understanding of RV diastolic dysfunction. Accurate assessment of RV contractility may yield further important prognostic information that will benefit patients with diastolic heart failure.
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Affiliation(s)
- Richard G Axell
- Medical Physics and Clinical Engineering, Addenbrookes Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, UK,
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17
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Zheng XZ, Zheng Q, Zhou J, Yang B. B-Lines in Assessment of Pulmonary Hypertension in Patients With Interstitial Lung Diseases: Feasibility of Transthoracic Lung Sonographic Signs. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2015; 34:1669-1675. [PMID: 26283756 DOI: 10.7863/ultra.15.14.10055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 12/16/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVES This study was conducted to evaluate the value of sonographic B-lines (previously called "comet tail artifacts") in assessment of pulmonary hypertension in patients with interstitial lung diseases. METHODS One hundred thirty-four patients with clinically diagnosed interstitial lung diseases complicated by pulmonary hypertension underwent transthoracic lung sonography and Doppler echocardiography for assessment of the presence of B-lines, the distance between them, and the pulmonary artery (PA) systolic pressure. A correlation analysis and a receiver operating characteristic curve analysis were performed. RESULTS All patients had diffuse bilateral B-lines. The maximum number of B-lines seen in any positive zone (not a summation) was significantly correlated with the severity of PA systolic pressure (r= 0.812; P< .0001), and a linear regression equation could be demonstrated: that is, y = 6.06 x + 17.57, where x and y represent the number of B-lines and PA systolic pressure, respectively. A cutoff of more than 4 B-lines seen in any positive zone had 89.5% sensitivity, 85.0% specificity, and 87.2% accuracy in predicting elevated PA pressure (>30 mm Hg). CONCLUSIONS The number of B-lines is useful in assessment of pulmonary hypertension, especially when tricuspid regurgitation and pulmonary valve regurgitation do not exist or cannot be satisfactorily measured by Doppler echocardiography.
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Affiliation(s)
- Xiao-Zhi Zheng
- Departments of Ultrasound (X.-Z.Z.) and Cardiology (Q.Z.), First People's Hospital of Yancheng, Yancheng, China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China (X.-Z.Z., B.Y.); and Department of Ultrasound, Third People's Hospital of Yancheng, Yancheng, China (J.Z.)
| | - Quan Zheng
- Departments of Ultrasound (X.-Z.Z.) and Cardiology (Q.Z.), First People's Hospital of Yancheng, Yancheng, China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China (X.-Z.Z., B.Y.); and Department of Ultrasound, Third People's Hospital of Yancheng, Yancheng, China (J.Z.)
| | - Jing Zhou
- Departments of Ultrasound (X.-Z.Z.) and Cardiology (Q.Z.), First People's Hospital of Yancheng, Yancheng, China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China (X.-Z.Z., B.Y.); and Department of Ultrasound, Third People's Hospital of Yancheng, Yancheng, China (J.Z.)
| | - Bin Yang
- Departments of Ultrasound (X.-Z.Z.) and Cardiology (Q.Z.), First People's Hospital of Yancheng, Yancheng, China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China (X.-Z.Z., B.Y.); and Department of Ultrasound, Third People's Hospital of Yancheng, Yancheng, China (J.Z.).
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18
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La Gerche A, Claus P. Right ventricular suction: an important determinant of cardiac performance. Cardiovasc Res 2015; 107:7-8. [PMID: 26014577 DOI: 10.1093/cvr/cvv165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- André La Gerche
- Baker IDI Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Piet Claus
- Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
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19
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Hemodynamic changes of the middle hepatic vein in patients with pulmonary hypertension using echocardiography. PLoS One 2015; 10:e0121408. [PMID: 25821961 PMCID: PMC4379104 DOI: 10.1371/journal.pone.0121408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 02/01/2015] [Indexed: 01/08/2023] Open
Abstract
The aim of this study was to analyze the changes of the middle hepatic vein (MHV) spectra in patients with pulmonary hypertension (PH) caused by congenital heart disease (CHD) and determine the proper parameters of MHV to predict PH. Eighty patients with CHD were included, whose pulmonary artery pressure was measured via right heart catheterization, and the MHV spectra were detected via echocardiography. The peak value of velocity (V) and velocity time integral (VTI) of the waves, including S wave, D wave and A wave, were measured at the end of inspiration. The values of the MHV parameters that were predictive of PH were evaluated and their cut-off points were determined. Compared with the control group, V of S wave (S), VTI of S wave (SVTI), V of D wave (D), VTI of D wave (DVTI) decreased and V of A wave (A), VTI of A wave (AVTI), A/S, AVTI/SVTI, A/(S+D), AVTI/ (SVTI+DVTI) increased in the PH group. These differences were statistically significant (P<0.05). A correlation analysis determined that the ratios of A/S, A/(S+D), AVTI/(SVTI+DVTI) were positively correlated with pulmonary artery mean pressure (r=0.529,0.575,0.438,P<0.001). An ROC curve analysis determined that the diagnostic effect of A/(S+D) was superior to the other two parameters. On the ROC curve, when the ratio of A/(S+D) was 0.30, the sensitivity was 85.37% and specificity was 75.00% for predicting PH. The spectral parameters of MHV, including the ratios of A/S, A/(S+D) and AVTI/(SVTI+DVTI), increased with increasing pulmonary pressure in CHD patients. When the ratio of A/(S+D) was 0.30 in MHV spectra, it had sufficient sensitivity and specificity for diagnosing PH, and this method could be used as a new non-invasive complementary echocardiographic parameter for predicting PH.
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Nicoara A, Whitener G, Swaminathan M. Perioperative Diastolic Dysfunction. Semin Cardiothorac Vasc Anesth 2013; 18:218-36. [DOI: 10.1177/1089253213505686] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Left ventricular diastolic dysfunction (LVDD) has only recently been recognized as an important determinant of perioperative morbidity. Intraoperative echocardiographers have been slow to adopt assessment of LVDD into clinical practice. This has been partly attributable to the complex measurements required to characterize LVDD, which are in turn related to how our understanding of diastole has evolved. Additionally, the lack of effective therapeutic options has left many wondering whether it is worthwhile to characterize this pathology in the first place. However, therapies are developed more rapidly once a problem can be identified reliably. The assessment of LVDD is centered on how effectively the left ventricle can fill. Diastolic dysfunction affects intraventricular pressures and stiffness, which in turn affect the pressure relationship between the left atrium and the left ventricle thereby affecting transmitral flow. Since echocardiography can enable the measurement of flow velocities, transmitral diastolic filling flow patterns provide robust information on diastolic function. The impact of abnormal diastolic function on left atrial pressure has consequences for pulmonary venous flow, which can also be measured with echocardiography. However, given the limitations of flow velocity, direct measurement of tissue velocity can significantly improve the characterization of diastolic dysfunction. The evolution of Doppler and speckle-based methods of assessing tissue motion have vastly improved our understanding of diastolic function. With the development of simpler algorithms for categorization, and their gradual adoption by perioperative echocardiographers, LVDD should be better diagnosed and treated to improve postoperative outcomes.
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