Hypertrophic cardiomyopathy (HCM) is characterized by cardiac muscle hypertrophy, unexplained by loading conditions with a nondilated left ventricle and normal or increased ejection fraction Midventricular obstruction of the left ventricle is an increasingly recognized phenotypic variant of hypertrophic cardiomyopathy due to the widespread availability of Cardiac Magnetic Resonance Imaging (CMR). Mid ventricular obstruction with apical aneurysm is a high risk variant of HCM which can lead to higher risk of arrhythmia and SCD. This variant is clinically and prognostically significant with MRI playing a major role in detection. CMR has nearly 100 % sensitivity in diagnosis and also helps in identifying other high risk features. CMR is helpful in detecting Late gadolinium enhancement (LGE) and apical aneurysm for which echocardiography is less sensitive. LGE represent area of replacement fibrosis which can act as a source for life threatening arrhythmia. Although this variant is not considered high risk feature for sudden cardiac death (SCD) in HCM cohort according to standard guideline, it is increasingly being recognized as a high risk feature by recent studies. Treatment is controversial however patients with multiple risk factors of SCD can be treated with ICD implantation to prevent catastrophic events. Herein we present a case of HCM with midventricular obstruction where MRI showed apical aneurysm with scarring and midventricular gradient. Incidence, pathophysiology, diagnosis role of CMR and treatment of this variant of HCM is discussed.
Published in | Science Journal of Clinical Medicine (Volume 10, Issue 4) |
DOI | 10.11648/j.sjcm.20211004.14 |
Page(s) | 102-105 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2021. Published by Science Publishing Group |
Heart, Myocardium, Hypertrophy, Hypertrophic Cardiomyopathy, MRI, Fibrosis, Ischemia, Scar
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APA Style
Divyesh Dadhania, Jineesh Valakada, Anoop Ayyappan, Ansan Joseph. (2021). Role of MRI in Hypertrophic Cardiomyopathy with Midventricular Obstruction and Apical Aneurysm: Uncommon High-risk Variant. Science Journal of Clinical Medicine, 10(4), 102-105. https://doi.org/10.11648/j.sjcm.20211004.14
ACS Style
Divyesh Dadhania; Jineesh Valakada; Anoop Ayyappan; Ansan Joseph. Role of MRI in Hypertrophic Cardiomyopathy with Midventricular Obstruction and Apical Aneurysm: Uncommon High-risk Variant. Sci. J. Clin. Med. 2021, 10(4), 102-105. doi: 10.11648/j.sjcm.20211004.14
AMA Style
Divyesh Dadhania, Jineesh Valakada, Anoop Ayyappan, Ansan Joseph. Role of MRI in Hypertrophic Cardiomyopathy with Midventricular Obstruction and Apical Aneurysm: Uncommon High-risk Variant. Sci J Clin Med. 2021;10(4):102-105. doi: 10.11648/j.sjcm.20211004.14
@article{10.11648/j.sjcm.20211004.14, author = {Divyesh Dadhania and Jineesh Valakada and Anoop Ayyappan and Ansan Joseph}, title = {Role of MRI in Hypertrophic Cardiomyopathy with Midventricular Obstruction and Apical Aneurysm: Uncommon High-risk Variant}, journal = {Science Journal of Clinical Medicine}, volume = {10}, number = {4}, pages = {102-105}, doi = {10.11648/j.sjcm.20211004.14}, url = {https://doi.org/10.11648/j.sjcm.20211004.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjcm.20211004.14}, abstract = {Hypertrophic cardiomyopathy (HCM) is characterized by cardiac muscle hypertrophy, unexplained by loading conditions with a nondilated left ventricle and normal or increased ejection fraction Midventricular obstruction of the left ventricle is an increasingly recognized phenotypic variant of hypertrophic cardiomyopathy due to the widespread availability of Cardiac Magnetic Resonance Imaging (CMR). Mid ventricular obstruction with apical aneurysm is a high risk variant of HCM which can lead to higher risk of arrhythmia and SCD. This variant is clinically and prognostically significant with MRI playing a major role in detection. CMR has nearly 100 % sensitivity in diagnosis and also helps in identifying other high risk features. CMR is helpful in detecting Late gadolinium enhancement (LGE) and apical aneurysm for which echocardiography is less sensitive. LGE represent area of replacement fibrosis which can act as a source for life threatening arrhythmia. Although this variant is not considered high risk feature for sudden cardiac death (SCD) in HCM cohort according to standard guideline, it is increasingly being recognized as a high risk feature by recent studies. Treatment is controversial however patients with multiple risk factors of SCD can be treated with ICD implantation to prevent catastrophic events. Herein we present a case of HCM with midventricular obstruction where MRI showed apical aneurysm with scarring and midventricular gradient. Incidence, pathophysiology, diagnosis role of CMR and treatment of this variant of HCM is discussed.}, year = {2021} }
TY - JOUR T1 - Role of MRI in Hypertrophic Cardiomyopathy with Midventricular Obstruction and Apical Aneurysm: Uncommon High-risk Variant AU - Divyesh Dadhania AU - Jineesh Valakada AU - Anoop Ayyappan AU - Ansan Joseph Y1 - 2021/11/10 PY - 2021 N1 - https://doi.org/10.11648/j.sjcm.20211004.14 DO - 10.11648/j.sjcm.20211004.14 T2 - Science Journal of Clinical Medicine JF - Science Journal of Clinical Medicine JO - Science Journal of Clinical Medicine SP - 102 EP - 105 PB - Science Publishing Group SN - 2327-2732 UR - https://doi.org/10.11648/j.sjcm.20211004.14 AB - Hypertrophic cardiomyopathy (HCM) is characterized by cardiac muscle hypertrophy, unexplained by loading conditions with a nondilated left ventricle and normal or increased ejection fraction Midventricular obstruction of the left ventricle is an increasingly recognized phenotypic variant of hypertrophic cardiomyopathy due to the widespread availability of Cardiac Magnetic Resonance Imaging (CMR). Mid ventricular obstruction with apical aneurysm is a high risk variant of HCM which can lead to higher risk of arrhythmia and SCD. This variant is clinically and prognostically significant with MRI playing a major role in detection. CMR has nearly 100 % sensitivity in diagnosis and also helps in identifying other high risk features. CMR is helpful in detecting Late gadolinium enhancement (LGE) and apical aneurysm for which echocardiography is less sensitive. LGE represent area of replacement fibrosis which can act as a source for life threatening arrhythmia. Although this variant is not considered high risk feature for sudden cardiac death (SCD) in HCM cohort according to standard guideline, it is increasingly being recognized as a high risk feature by recent studies. Treatment is controversial however patients with multiple risk factors of SCD can be treated with ICD implantation to prevent catastrophic events. Herein we present a case of HCM with midventricular obstruction where MRI showed apical aneurysm with scarring and midventricular gradient. Incidence, pathophysiology, diagnosis role of CMR and treatment of this variant of HCM is discussed. VL - 10 IS - 4 ER -