The efficacy of pulmonary artery catheters in reducing mortality in acute heart failure cardiogenic shock: A systematic review.

BACKGROUND: Cardiogenic shock (CS), a complex and life-threatening medical condition, has an astounding hospital mortality rate spanning from 40 % to 59 %. Frequently, CS requires the use of pulmonary artery catheters (PACs) for management.

OBJECTIVE: This literature review aims to investigate the relationship between PAC utilization in CS patients and in-hospital 30-day mortality rates compared to noninvasive vital sign monitoring alone.

METHODS: An integrative literature search was conducted from January 1, 2003, until August 1, 2023. The review focused on patients with acute decompensated heart failure CS. It compared PAC and non-PAC hemodynamic monitoring with 30-day mortality outcomes. Five articles met the inclusion criteria and underwent quality assessment using CONSORT, STROBE, and STARD guidelines.

RESULTS: Five articles totaled 332,794 patients. Patients with a PAC showed lower 30-day in-hospital mortality rates (22.2 % to 55 %) than patients without a PAC (29.8-78 %). One study, however, indicated that PAC use did not significantly affect mortality rates (p = 0.66). Notably, the lowest mortality rates (25 %) were linked to complete hemodynamic profiling with a PAC. The mortality rates showed greater significance when PAC initiation occurred early, resulting in a further reduction of the mortality rate to 17.3 %. Conversely, mortality rates increased to 27.7 % with delayed PAC initiation, 40 % with incomplete hemodynamic profiling, and 35 % with no PAC use.

CONCLUSIONS: PAC utilization reduces in-hospital mortality for the CS patient population, as suggested by the analyzed studies. Further research via randomized controlled trials (RCTs) with standardized treatment protocols and adequate follow-up are required to validate the findings.