Table 1.

Case reports on ventricular tachycardia associated with MVOHCM

Case report	Sato (Cui et al., 2016)	Efthimiadis et al. (Sato et al., 2007)	Pérez‐Riera et al. (Efthimiadis et al., 2009)	Dilaveris et al. (Pérez‐Riera et al., 2016)	Gao et al. (Yan et al., 2015)	Petrou et al. (Liu et al., 2017)	Shimahara et al. (Petrou et al., 2014)	Shah et al. (Shimahara et al., 2015)
Age(year)/sex	58/M	63/F	53/M	80/F	54/M	69/F	44/M	57/M
PG (mm Hg)	64	‐	91	‐	60	120	‐	‐
Arrhythmia	VF、NSVT	NSVT	SMVT	SMVT	SMVT	SMVT	VT	VT
Origin of VT	‐	‐	LV apical	LV	LV	LV	LVAA border	apical scar
ST‐T abnormality	Negative ST elevation		Negative T	negative T ST elevation	Negative	Negative		‐
Apical aneurysm	+	+	4.4 cm	+	+	+	+	+
Mural thrombus	+	‐	‐	‐	+	‐	‐	‐
CAG/CTA	Normal	‐		Normal	Normal	Normal	‐	Normal
Left ventriculogram	None	None	+	+	+	+	None	None
CMR	+	+	None	None	+	None	None	None
Therapy	declined	ICD	ICD	ICD	Surgerya	ICD	Surgeryb	ICD/Surgeryb
Treatments	β‐blocker	‐	β‐blocker	None	Metoprolol amiodarone	‐	β‐blocker amiodarone	None
Follow‐up	6 months	2 years	‐	‐	18 months	‐	2 years	6 months
Prognosis	ECG abnormalities persisted	died due to heart failure	‐	‐	clinically stable and free from arrhythmic recurrence	‐	No cardiac events	one (inappropriate) discharge from the ICD

CAG: coronary artery angiography; CTA: computed tomographic angiography; ICD: implantable cardioverter defibrillator; LV: left ventricular; negative: T‐wave inversions in precordial leads; NSVT: non‐sustained ventricular tachycardia; PG: pressure gradient; SMVT: sustained monomorphic ventricular tachycardia.

^aMyectomy of the inappropriate hypertrophy myocardium and removal of ventricular thrombus and excision of the apical aneurysm.

^bApical aneurysmectomy, left ventricular reconstruction, and cryoablation at the rim of the aneurysm were performed; Left ventriculogram, showed mid‐ventricular obstruction with a similar appearance of an hourglass shape and an apical aneurysm; CMR, cardiac magnetic resonance.