title: Simultaneous pressure recording in mid-ventricular obstructive hypertrophic cardiomyopathy.
abstract: A 70-year-old man was diagnosed with mid-ventricular obstructive hypertrophic cardiomyopathy (MVOHCM) with apical aneurysm and paradoxic jet flow. At cardiac catheterization, pressure study showed that there was a markedly high pressure-gradient of 90 mmHg between the apex and the base in systole. Apical pressure was 350 mmHg after premature ventricular contraction. The apical aneurysm was already dilated and spherical in late systole; the absence of active relaxation was considered to be the cause of the paradoxic jet flow. In this report, we suggest the pathogenesis of left ventricular apical aneurysm and paradoxic jet flow in MVOHCM.
authors.affiliation: Internal Medicine, Kumamoto Saisyunsou Hospital, Japan.
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Hanaoka
authors.forename: Ikuo
authors.initials: I
authors.lastname: Misumi
authors.forename: Taku
authors.initials: T
authors.lastname: Rokutanda
authors.forename: Ryuichiro
authors.initials: R
authors.lastname: Akahoshi
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Matsumoto
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Sakamoto
authors.forename: Koichi
authors.initials: K
authors.lastname: Kaikita
authors.forename: Megumi
authors.initials: M
authors.lastname: Yamamuro
authors.forename: Seigo
authors.initials: S
authors.lastname: Sugiyama
authors.forename: Hisao
authors.initials: H
authors.lastname: Ogawa
mesh_terms: D000368:Aged; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000503:physiopathology*; D003326:Coronary Circulation; D006322:Heart Aneurysm / Q000150:complications / Q000503:physiopathology*; D006352:Heart Ventricles / Q000473:pathology*; D006801:Humans; D008297:Male