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Nemes A. Myocardial Mechanics and Associated Valvular and Vascular Abnormalities in Left Ventricular Noncompaction Cardiomyopathy. J Clin Med 2023; 13:78. [PMID: 38202085 PMCID: PMC10779999 DOI: 10.3390/jcm13010078] [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: 11/09/2023] [Revised: 11/26/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
Left ventricular (LV) non-compaction (LVNC) is a rare genetic cardiomyopathy due to abnormal intra-uterine arrest of compaction of the myocardial fibers during endomyocardial embryogenesis. Due to the partial or complete absence of LV compaction, the structure of the LV wall shows characteristic abnormalities, including a thin compacted epicardium and a thick non-compacted endocardium with prominent trabeculations and deep intertrabecular recesses. LVNC is frequently associated with chronic heart failure, life-threatening ventricular arrhythmias, and systemic embolic events. According to recent findings, in the presence of LVNC, dysfunctional LV proved to be associated with left atrial volumetric and functional abnormalities and consequential dilated and functionally impaired mitral annulus, partly explaining the higher prevalence of regurgitation. Although the non-compaction process morphologically affects only the LV, signs of remodeling of the right heart were also detected. Moreover, dilation and stiffening of the aorta were present. The aim of the present detailed review was to summarize findings regarding changes in cardiac mechanics, valvular abnormalities, and vascular remodeling detected in patients with LVNC.
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Affiliation(s)
- Attila Nemes
- Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
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Gregor Z, Kiss AR, Grebur K, Dohy Z, Kovács A, Merkely B, Vágó H, Szűcs A. Characteristics of the right ventricle in left ventricular noncompaction with reduced ejection fraction in the light of dilated cardiomyopathy. PLoS One 2023; 18:e0290981. [PMID: 37747903 PMCID: PMC10519585 DOI: 10.1371/journal.pone.0290981] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/20/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Reports of left ventricular noncompaction (LVNC) rarely include descriptions of the right ventricle (RV). This study aimed to describe the characteristics of the RV in LVNC patients with reduced LV function (LVNC-R) compared with patients with dilated cardiomyopathy (DCM) and subjects with LVNC with normal left ventricular ejection fraction (LV-EF) (LVNC-N). METHODS Forty-four LVNC-R patients, 44 LVNC-N participants, and 31 DCM patients were included in this retrospective study (LV-EF: LVNC-R: 33.4±10.2%; LVNC-N: 65.0±5.9%; DCM: 34.6±7.9%). Each group was divided into two subgroups by the amount of RV trabeculation. RESULTS There was no difference in the RV-EF between the groups, and the RV trabecular mass correlated positively with the RV volume and negatively with the RV-EF in all the groups. All the measured parameters were comparable between the groups with decreased LV function. The hypertrabeculated RV subgroups showed significantly higher RV volumes and lower RV-EF only in the decreased-LV-function groups. The correlation of LV and RV trabeculation was observed only in the LVNC-N group, while LV trabeculation correlated with RV volumes in both noncompacted groups. Both decreased-LV-function groups had worse RV strain values than the LVNC-N group; however, RV strain values correlated with RV trabeculation predominantly in the LVNC-R group. CONCLUSIONS The presence and characteristics of RV hypertrabeculation and the correlations between LV trabeculation and RV parameters raise the possibility of RV involvement in noncompaction; moreover, RV strain values might be helpful in the early detection of RV function deterioration.
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Affiliation(s)
- Zsófia Gregor
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Anna Réka Kiss
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Kinga Grebur
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Zsófia Dohy
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Attila Kovács
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Hajnalka Vágó
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Andrea Szűcs
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
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Sarnecki J, Paszkowska A, Petryka-Mazurkiewicz J, Kubik A, Feber J, Jurkiewicz E, Ziółkowska L. Left and Right Ventricular Morphology, Function and Myocardial Deformation in Children with Left Ventricular Non-Compaction Cardiomyopathy: A Case-Control Cardiovascular Magnetic Resonance Study. J Clin Med 2022; 11:jcm11041104. [PMID: 35207378 PMCID: PMC8875170 DOI: 10.3390/jcm11041104] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/07/2022] [Accepted: 02/16/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Left ventricular non-compaction (LVNC) is a rare cardiomyopathy typically involving the left ventricle (LV); however, the right ventricle (RV) can also be affected. This case-control study aimed to assess the morphology and function of LV and RV in children with LVNC. Methods: Sixteen children (13 ± 3 years, six girls) with LVNC were compared with 16 sex- and age-matched controls. LV and RV morphology and function were evaluated in cardiovascular magnetic resonance (CMR) studies. Additionally, LV and RV global radial (GRS), circumferential (GCS), and longitudinal strain (GLS) were assessed using tissue-tracking analysis. Results: Patients with LVNC did not differ from the healthy controls in terms of age, height, weight, and body surface area (BSA). In total, 4/16 subjects with LVNC had mid-wall late gadolinium enhancement (LGE). Compared to the control group, patients with LVNC had higher end-diastolic volume (EDV) indexed for body surface area (BSA), lower ejection fraction (EF), and lower LV strain parameters (all p < 0.05). Children with LVNC also presented with thicker RV apical trabeculation, whereas there were no differences in RV EF and EDV/BSA between the groups. Nevertheless, children with LVNC had impaired RV GRS and GCS (both p < 0.05). Conclusions: LVNC in pediatric patients is associated with LV enlargement and impaired LV systolic function. Additionally, children with LVNC have increased RV trabeculations and subclinical impairment of RV myocardial deformation.
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Affiliation(s)
- Jędrzej Sarnecki
- Department of Diagnostic Imaging, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (J.S.); (E.J.)
| | - Agata Paszkowska
- Department of Cardiology, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | - Joanna Petryka-Mazurkiewicz
- Department of Coronary and Structural Heart Diseases, National Institute of Cardiology, 04-628 Warsaw, Poland;
- Magnetic Resonance Unit, National Institute of Cardiology, 04-628 Warsaw, Poland;
| | - Agata Kubik
- Magnetic Resonance Unit, National Institute of Cardiology, 04-628 Warsaw, Poland;
| | - Janusz Feber
- Division of Nephrology, Children’s Hospital of East Ontario, University of Ottawa, Ottawa, ON K1H 8L1, Canada;
| | - Elżbieta Jurkiewicz
- Department of Diagnostic Imaging, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (J.S.); (E.J.)
| | - Lidia Ziółkowska
- Department of Cardiology, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
- Correspondence: ; Tel.: +48-22-815-7370
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Wang W, Chen W, Lin X, Fang L. Influence of Right Ventricular Dysfunction on Outcomes of Left Ventricular Non-compaction Cardiomyopathy. Front Cardiovasc Med 2022; 9:816404. [PMID: 35174234 PMCID: PMC8842670 DOI: 10.3389/fcvm.2022.816404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Background Various adverse outcomes such as mortality and rehospitalization are associated with left ventricular non-compaction (LVNC). Due to data limitations, prospective risk assessment for LVNC remains challenging. This study aimed to investigate the influence of right ventricular (RV) dysfunction on the clinical outcomes of patients with LVNC through accurate and comprehensive measurements of RV function. Methods and Results Overall, 117 patients with LVNC (47.6 ± 18.3 years, 34.2% male) were enrolled, including 53 (45.3%) and 64 (54.7%) patients with and without RV dysfunction, respectively. RV dysfunction was defined as meeting any two of the following criteria: (i) tricuspid annular systolic excursions <17 mm, (ii) tricuspid S′ velocity <10 cm/s, and (iii) RV fractional area change (FAC) <35%. The proportion of biventricular involvement was significantly higher in patients with RV dysfunction than in controls (p = 0.0155). After a follow-up period of 69.0 [33.5, 96.0] months, 18 (15.4%) patients reached the primary endpoint (all-cause mortality), with 14 (26.4%) and 4 (6.3%) from the RV dysfunction group and normal RV function group, respectively. The Kaplan–Meier method and log-rank test revealed that patients with RV dysfunction had a higher risk of all-cause mortality than those in the control group (hazard ratio [HR]: 5.132 [2.003, 13.15], p = 0.0013). Similar results were obtained for patients with left ventricular ejection fraction (LVEF) <50% [HR, 6.582; 95% confidence interval (CI), 2.045–21.19; p = 0.0367]. The relationship between RV dysfunction and heart failure rehospitalization and implantation of implantable cardioverter-defibrillator (ICD)/cardiac resynchronization therapy (CRT) was not statistically significant (both p > 0.05). The multivariable Cox proportional hazard modeling analysis showed that RV dysfunction (HR: 4.950 [1.378, 17.783], p = 0.014) and impaired RV global longitudinal strain (RVGLS) (HR: 1.103 [1.004, 1.212], p = 0.041) were independent predictors of mortality rather than increased RV end-diastolic area and decreased LVEF (both p > 0.05). Conclusions RV dysfunction is associated with the prognosis of patients with LVNC.
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Affiliation(s)
- Wuwan Wang
- Department of Cardiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Wei Chen
- Department of Cardiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xue Lin
- Department of Cardiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Ligang Fang
- Department of Cardiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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Kiss AR, Gregor Z, Furák Á, Szabó LE, Dohy Z, Merkely B, Vágó H, Szűcs A. Age- and Sex-Specific Characteristics of Right Ventricular Compacted and Non-compacted Myocardium by Cardiac Magnetic Resonance. Front Cardiovasc Med 2021; 8:781393. [PMID: 34950717 PMCID: PMC8688768 DOI: 10.3389/fcvm.2021.781393] [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: 09/22/2021] [Accepted: 11/15/2021] [Indexed: 12/02/2022] Open
Abstract
The age and sex-specific characteristics of right ventricular compacted (RV-CMi) and RV-trabeculated myocardial mass (RV-TMi) and the determinants of RV myocardium are less well-studied; however, in different conditions, these might provide additional diagnostic information. We aimed to describe the age- and sex-specific characteristics of RV-CMi, RV-TMi, and RV volumetric and functional parameters and investigate the determinants of RV myocardial mass with cardiac magnetic resonance (CMR). Two hundred healthy Caucasian volunteers free of known cardiovascular or systemic diseases were prospectively enrolled in this study. Four different age groups were established with equal numbers of males and females: Group A (n = 50, 20-29 years, mean age: 24.3 ± 3.2 years), Group B (n = 50, 30-39 years, mean age: 33.6 ± 2.6 years), Group C (n = 50, 40-49 years, mean age: 44.7 ± 2.7 years), and Group D (n = 50, ≥50 years, mean age: 55.1 ± 3.9 years). Left ventricular (LV) and RV volumetric, functional, CMi, and TMi values were measured with a threshold-based post-processing CMR method. The volumetric parameters, RV-CMi, and RV-TMi values were larger, and the ejection fraction (EF) was lower in males. The RV-CMi did not correlate with age in either of the sexes, while the RV-TMi decreased with age in females but remained stable in males. The RV-TMi and RV-CMi correlated positively with RV volumetric parameters, the LV-CMi, the LV-TMi, and each other in both sexes. LV-TMi, LV-CMi, RV end-systolic volume, and sex were independent predictors of RV-TMi. Understanding the characteristics of RV-trabeculated and RV-compacted myocardium might have additive value in diagnosing different conditions with RV hypertrophy or hypertrabeculation.
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Affiliation(s)
- Anna Réka Kiss
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Zsófia Gregor
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Ádám Furák
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | | | - Zsófia Dohy
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Béla Merkely
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Hajnalka Vágó
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
| | - Andrea Szűcs
- Heart and Vascular Center of Semmelweis University, Budapest, Hungary
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Seecheran RV, Ramdin R, Singh S, Seecheran VK, Persad SA, Peram L, Raza S, Seecheran NA. Isolated Right Ventricular Noncompaction Cardiomyopathy Causing Pulmonary Embolism. J Investig Med High Impact Case Rep 2021; 9:23247096211024027. [PMID: 34121486 PMCID: PMC8207261 DOI: 10.1177/23247096211024027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ventricular noncompaction is a rare, heterogeneous cardiomyopathy characterized by marked trabeculations and deep intertrabecular spaces with clinical sequelae of heart failure, arrhythmias, and cardioembolic events. In this article, we describe a patient with isolated right ventricular noncompaction who presented with submassive pulmonary embolism, which was managed with long-term direct oral anticoagulation.
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Affiliation(s)
| | - Ryan Ramdin
- North Central Regional Health Authority, Mt. Hope, Trinidad and Tobago
| | - Sonia Singh
- North Central Regional Health Authority, Mt. Hope, Trinidad and Tobago
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Stämpfli SF, Donati TG, Hellermann J, Anwer S, Erhart L, Gruner C, Kaufmann BA, Gencer B, Haager PK, Müller H, Tanner FC. Right ventricle and outcome in left ventricular non-compaction cardiomyopathy. J Cardiol 2019; 75:20-26. [PMID: 31587941 DOI: 10.1016/j.jjcc.2019.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/12/2019] [Accepted: 09/16/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND The risk of adverse events in patients with left ventricular non-compaction cardiomyopathy (LVNC) is substantial. Information on prognostic factors, however, is limited. This study was designed to assess the prognostic value of right ventricular (RV) size and function in LVNC patients. METHODS Cox regression analyses were used to determine the association of indexed RV end-diastolic area (RV-EDAI), indexed end-diastolic diameter (RV-EDDI), fractional area change (FAC), and tricuspid annular systolic excursion (TAPSE) with the occurrence of death or heart transplantation (composite endpoint). RESULTS Out of 127 patients (53.2 ± 17.8 years; 61% males, median follow-up time was 7.7 years), 17 patients reached the endpoint. In a univariate analysis, RV-EDAI was the strongest predictor of outcome [HR 1.48 (1.24-1.77) per cm2/m2; p < 0.0001]. FAC was predictive as well [HR 1.44 (1.16-1.83) per 5% decrease; p = 0.0009], while TAPSE was not (p=ns). RV-EDAI remained an independent predictor in a bivariable analysis with indexed left ventricular ED volume [HR 1.41 (1.18-1.70) per cm2/m2; p = 0.0002], while analysis of FAC and left ventricular ejection fraction demonstrated that FAC was not independent [HR 1.20 (0.98-1.52); per 5% decrease; p = 0.0721]. RV-EDAI 11.5 cm2/m2 was the best cut-off value for separating patients in terms of outcome. Patients with RV-EDAI >11.5 cm2/m2 had a survival rate of 18.5% over 12 years as compared to 93.8% in patients with RV-EDAI <11.5 cm2/m2 (p < 0.0001). CONCLUSION Increased end-diastolic RV size and decreased systolic RV function are predictors of adverse outcome in patients with LVNC. Patients with RV-EDAI >11.5 cm2/m2 exhibit a significantly lower survival than those <11.5 cm2/m2.
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Affiliation(s)
- Simon F Stämpfli
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland; Department of Cardiology, Heart Centre Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Thierry G Donati
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland
| | - Jens Hellermann
- Flury Stiftung, Hospital of Schiers, Department of Internal Medicine, Schiers, Switzerland
| | - Shehab Anwer
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland
| | - Ladina Erhart
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland
| | - Christiane Gruner
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland
| | - Beat A Kaufmann
- Division of Cardiology, University Hospital Basel, Basel, Switzerland
| | - Baris Gencer
- Division of Cardiology, University Hospital Geneva, Geneva, Switzerland
| | - Philipp K Haager
- Division of Cardiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Hajo Müller
- Division of Cardiology, University Hospital Geneva, Geneva, Switzerland
| | - Felix C Tanner
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland.
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Maron BJ, Udelson JE, Bonow RO, Nishimura RA, Ackerman MJ, Estes NAM, Cooper LT, Link MS, Maron MS. Eligibility and Disqualification Recommendations for Competitive Athletes With Cardiovascular Abnormalities: Task Force 3: Hypertrophic Cardiomyopathy, Arrhythmogenic Right Ventricular Cardiomyopathy and Other Cardiomyopathies, and Myocarditis: A Scientific Statement From the American Heart Association and American College of Cardiology. Circulation 2015; 132:e273-80. [PMID: 26621644 DOI: 10.1161/cir.0000000000000239] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Maron BJ, Udelson JE, Bonow RO, Nishimura RA, Ackerman MJ, Estes NAM, Cooper LT, Link MS, Maron MS. Eligibility and Disqualification Recommendations for Competitive Athletes With Cardiovascular Abnormalities: Task Force 3: Hypertrophic Cardiomyopathy, Arrhythmogenic Right Ventricular Cardiomyopathy and Other Cardiomyopathies, and Myocarditis: A Scientific Statement From the American Heart Association and American College of Cardiology. J Am Coll Cardiol 2015; 66:2362-2371. [PMID: 26542657 DOI: 10.1016/j.jacc.2015.09.035] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Hayabuchi Y, Ono A, Kagami S. Pulmonary Annular Motion Velocity Assessed Using Doppler Tissue Imaging - Novel Echocardiographic Evaluation of Right Ventricular Outflow Tract Function. Circ J 2015; 80:168-76. [PMID: 26511460 DOI: 10.1253/circj.cj-15-0695] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND We assessed whether measuring pulmonary annular motion velocity could serve as a novel method of evaluating right ventricular outflow tract (RVOT) performance in pediatric patients with heart disease. METHODS AND RESULTS Tissue Doppler-derived pulmonary annular motion velocity was determined from the parasternal long-axis view of the RVOT. Pulmonary annular velocity was measured in children (age, 5-10 years) with an atrial septal defect (ASD), pulmonary arterial hypertension (PAH), surgically repaired tetralogy of Fallot (TOF) and healthy children (control). Pulmonary annular velocity waveforms comprised systolic bimodal (s1' and s2') and diastolic e' and a' waves in all groups. The peak velocity of s1' and s2' was significantly higher in the ASD group than in the controls (15.0±2.4 vs. 11.2±2.1 and 6.0±0.9 vs. 4.4±1.2 cm/s; P<0.01 and P<0.001, respectively). The s1' and s2' peak velocities were significantly lower in the PAH group (8.5±1.2 and 3.2±0.4 cm/s; P<0.05 for both), and in the group with TOF (5.3±2.2 and 3.4±1.4 cm/s; P<0.001 and P<0.05, respectively). The peak velocity of e' was significantly decreased in the PAH and TOF, compared with the control group (6.8±1.6 and 8.2±2.9 vs. 11.9±1.9 cm/s; P<0.001 for both). CONCLUSIONS Pulmonary annular motion velocity determined using tissue Doppler imaging is a promising method of assessing RVOT function.
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André F, Burger A, Loßnitzer D, Buss SJ, Abdel-Aty H, Gianntisis E, Steen H, Katus HA. Reference values for left and right ventricular trabeculation and non-compacted myocardium. Int J Cardiol 2015; 185:240-7. [DOI: 10.1016/j.ijcard.2015.03.065] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 03/03/2015] [Indexed: 12/20/2022]
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Lin T, Milks MW, Upadhya B, Hundley WG, Stacey RB. Improvement in systolic function in left ventricular non-compaction cardiomyopathy: A case report. J Cardiol Cases 2014; 10:231-234. [DOI: 10.1016/j.jccase.2014.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 07/09/2014] [Accepted: 08/08/2014] [Indexed: 11/30/2022] Open
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Glavinovic T, Cheung DYC, Cordova Perez FJ, Soni A, Memauri B, Jassal DS. Right ventricular free wall dyskinesis in the setting of left ventricular non compaction: a case report. BMC Res Notes 2014; 7:787. [PMID: 25374312 PMCID: PMC4233058 DOI: 10.1186/1756-0500-7-787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Accepted: 10/17/2014] [Indexed: 11/10/2022] Open
Abstract
Background Left ventricular non compaction is a relatively rare congenital disorder characterized by prominent trabeculations and intertrabecular recesses with the potential for thromboembolism, arrhythmias, and sudden cardiac death as adverse effects. Echocardiography has traditionally been employed as the primary mode of imaging; however, with the advent of cardiac magnetic resonance as a more precise imaging technique, the disorder known as left ventricle non compaction is becoming more broadly defined with increasing recognition of right ventricle (RV) involvement. Case presentation This report describes a 52-year-old Caucasian female with new onset atrial fibrillation with an unusual finding of left ventricular non compaction and right ventricular dysfunction on transthoracic echocardiogram with preserved left ventricular ejection fraction. Cardiac magnetic resonance imaging demonstrated a disproportionately affected right ventricle, with apical free wall dyskinesis. Conclusions This case illustrates the unique occurrence of left ventricular non compaction with preserved ejection fraction alongside RV free wall dyskinesis and RV systolic dysfunction. The significance of this is yet unknown given the paucity of existing literature. This report serves to highlight the vast heterogeneity within left ventricular non compaction as we are better able to delineate this disorder using increasingly sophisticated imaging techniques.
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Affiliation(s)
| | | | | | | | | | - Davinder S Jassal
- Institute of Cardiovascular Sciences, St, Boniface Research Centre, University of Manitoba, Winnipeg, Manitoba, Canada.
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Non-compaction Cardiomyopathy: Prevalence, Prognosis, Pathoetiology, Genetics, and Risk of Cardioembolism. Curr Heart Fail Rep 2014; 11:393-403. [DOI: 10.1007/s11897-014-0227-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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