Dataset Information

Psychosocial Risk and Its Association With Outcomes in Continuous-Flow Left Ventricular Assist Device Patients.

ABSTRACT:

Background

Advanced heart failure therapies such as left ventricular assist device (LVAD) implantation require intricate follow-up and complex care. We sought to explore the burden of psychosocial risk factors among patients with LVAD and their impact on postimplant outcomes using the Interagency Registry for Mechanically Assisted Circulatory Support.

Methods

Adult patients in the Interagency Registry for Mechanically Assisted Circulatory Support requiring durable LVAD between 2008 and 2017 were included. Individuals were determined to have psychosocial risk if they had one of the following: (1) limited social support; (2) limited cognition; (3) substance abuse (alcohol and drug); (4) severe psychiatric disease (including major depression and other major psychiatric diagnosis); and (5) repeated noncompliance. Univariate and multivariate Cox proportional hazard regression models were used to analyze predictors of survival and complications.

Results

A total of 15 403 continuous-flow LVAD recipients were included. A total of 3163 (20.5%) had one or more psychosocial risk factors. The most prevalent psychosocial risk factor was substance abuse in 1941 (12.6%) recipients. Patients with psychosocial risk factors were significantly younger at LVAD implant, less likely to be White, and less likely to be female compared with those without psychosocial risk, P<0.001 for all. Patients with psychosocial risk were significantly more likely to receive an LVAD as destination therapy, P<0.001. In adjusted models, patients with psychosocial risk were at increased hazards for device-related infection, gastrointestinal bleeding, pump thrombosis, and readmission and reduced hazards for cardiac transplantation (P<0.05 for all). There was no statistically significant difference in survival on pump support or stroke.

Conclusions

Psychosocial risk is an important component of patient selection for advanced heart failure therapies. Addressing these specific components may help improve access to advanced therapies and post-LVAD outcomes.

SUBMITTER: DeFilippis EM

PROVIDER: S-EPMC7527209 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundVasoplegia after routine cardiac surgery is associated with severe postoperative complications and increased mortality. It is also prevalent in patients undergoing implantation of pulsatile flow left ventricular assist devices (LVAD). However, less is known regarding vasoplegia after implantation of newer generations of continuous flow LVADs (cfLVAD). We aim to report the incidence, impact on outcome and predictors of vasoplegia in these patients.MethodsAdult patients scheduled for primary cfLVAD implantation were enrolled into a derivation cohort (n = 118, 2006-2013) and a temporal validation cohort (n = 73, 2014-2016). Vasoplegia was defined taking into consideration low mean arterial pressure and/or low systemic vascular resistance, preserved cardiac index and high vasopressor support. Vasoplegia was considered after bypass and the first 48 h of ICU stay lasting at least three consecutive hours. This concept of vasoplegia was compared to older definitions reported in the literature in terms of the incidence of postoperative vasoplegia and its association with adverse outcomes. Logistic regression was used to identify independent predictors. Their ability to discriminate patients with vasoplegia was quantified by the area under the receiver operating characteristic curve (AUC).ResultsThe incidence of vasoplegia was 33.1% using the unified definition of vasoplegia. Vasoplegia was associated with increased ICU length-of-stay (10.5 [6.9-20.8] vs 6.1 [4.6-10.4] p = 0.002), increased ICU-mortality (OR 5.8, 95% CI 1.9-18.2) and one-year-mortality (OR 3.9, 95% CI 1.5-10.2), and a higher incidence of renal failure (OR 4.3, 95% CI 1.8-10.4). Multivariable analysis identified previous cardiothoracic surgery, preoperative dopamine administration, preoperative bilirubin levels and preoperative creatinine clearance as independent preoperative predictors of vasoplegia. The resultant prediction model exhibited a good discriminative ability (AUC 0.80, 95% CI 0.71-0.89, p < 0.01). Temporal validation resulted in an AUC of 0.74 (95% CI 0.61-0.87, p < 0.01).ConclusionsIn the era of the new generation of cfLVADs, vasoplegia remains a prevalent (33%) and critical condition with worse short-term outcomes and survival. We identified previous cardiothoracic surgery, preoperative treatment with dopamine, preoperative bilirubin levels and preoperative creatinine clearance as independent predictors.