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Leber’s Hereditary Optic Neuropathy and Hypertrophic CardiomyopathyNovel Teaching Points

Thomas Morris Hey, MD, PhD, Søren Kristian Nielsen, MD, Ulrik Eriksen, MD, PhD and 2 more

CJC Open · 2022

doi:10.1016/j.cjco.2022.06.005 (opens in a new tab)

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Abstract

Leber’s hereditary optic neuropathy (LHON) is a mitochondrial condition that gradually affects the central vision. In the current case report, we present 2 relatives with LHON due to a pathogenic variant within ND1 with a clinical phenotype resembling hypertrophic cardiomyopathy, including a short PQ-interval and hypertrophy on electrocardiogram as well as severe hypertrophy of the left ventricle on echocardiography. These findings highlight the importance of offering routine cardiac investigation to patients with LHON and their relatives carrying the ND1 variant to hopefully improve correct diagnosis and clinical management of LHON patients. Résumé: La neuropathie optique héréditaire de Leber (NOHL) est une maladie mitochondriale qui affecte graduellement la vision centrale. Dans l’observation clinique actuelle, nous présentons deux proches atteints de la NOHL due à un variant pathogène dans le ND1 associé à un phénotype clinique qui ressemble à une cardiomyopathie hypertrophique, notamment en raison d’un intervalle PQ court et d’une hypertrophie à l’électrocardiogramme, et d’une hypertrophie grave du ventricule gauche à l’échocardiographie. Ces conclusions illustrent l’importance de proposer des examens cardiaques systématiques aux patients atteints de NOHL et à leurs proches porteurs du variant ND1 pour, espérons-le, améliorer les diagnostics justes et la prise en charge clinique des patients atteints de la NOHL.

Abstract licence: CC BY-NC-ND

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