Table 2:

Definition of right heart failure used in the studies

Authors	RHF definition
Kang et al. [14]	INTERMACS definition
Nitta et al. [15]	RVAD implantation within 2 weeks of LVAD implantation
Raymer et al. [17]	Post-implant inotropic support >14 days, RVAD implantation or death within 14 days due to RHF
Loforte et al. [16]	Short or long term right sided MCS despite maximal dosage of continuous inotropic support and NO ventilation within 30 days of LVAD implantation.
Gonzalez et al. [25]	INTERMACS definition
Gudejko et al. [18]	INTERMACS definition
Alfirevic et al. [20]	INTERMACS definition
Morine et al. [13]	INTERMACS definition
Sert et al. [21]	INTERMACS definition
Grandin et al. [12]	RVAD or inotropic support >14 days or death from RHF within 14 days of LVAD implantation
Benjamin et al. [22]	RVAD or inotropic support >14 days within 30 days of LVAD implantation.
Muslem et al. [19]	INTERMACS definition
Ruiz-Cano et al. [23]	INTERMACS definition
Cacioli et al. [26]	INTERMACS definition
Stricagnoli et al. [27]	INTERMACS definition

INTERMACS definition of RHF: elevated central venous pressure >18 mmHg in the absence of elevated pulmonary capillary wedge pressure; RVAD implantation; or requirement of prolonged nitric oxide or inotropic therapy [39].

INTERMACS: Interagency Registry of Mechanically Assisted Circulatory Support; LVAD: left ventricular assist device; RHF: right heart failure; NO: nitric oxide; RVAD: right ventricular assist device.