Heart failure & cardiomyopathies

Left Ventricular Assist Device Therapy in Cold and Dry Patients

Circ Heart FailPublished Registry study

Authors' conclusion

In cold and dry patients with end-stage heart failure, LVADs are associated with milder but significant improvements in functional capacity and quality of life with a similar incidence of adverse events and survival at 1 year.

Study context

Population
Adults with end-stage heart failure receiving left ventricular assist device (LVADs) between 2006 and 2017 in the Interagency Registry for Mechanically Assisted Circulatory Support databasepatients with complete clinical, echocardiographic, and functional capacity profiles
Participants
10,310 adults
Exposure
Cold and dry vs cold and wet patients receiving LVADs
Outcome
Survival (mortality)
Follow-up
1 year

Main finding

As reported in the abstract

  • Cold and dry vs cold and wet: log-rank P =0.81

Observational data: associations, not effects.

Secondary outcomes

OutcomeCold and dryCold and wetP value
Change in EuroQol · 1 year after LVADMilder improvement in cold and dry+0.11+0.17P = 0.001
Change in Kansas City Cardiomyopathy Questionnaire · 1 year after LVADMilder improvement in cold and dry+26+31P = 0.031
Change in 6-minute walk test distance · 1 year after LVADMilder improvement in cold and drychange +194 feetchange +340 feetP = 0.026
Rate of hospitalizations · 1 year · no statistically significant difference
P = 0.76

Follow-up

Median follow-up
364 days (interquartile range, 326-381 days)

Pre-LVAD pulmonary capillary wedge pressure · before LVAD implantation

Overall mean
25±9 mm Hg

Proportion cold and dry

Cold and dry patients comprised
15%

Original publication

Left Ventricular Assist Device Therapy in Cold and Dry Patients. Circ Heart Fail. Published 8 January 2025. doi:10.1161/circheartfailure.123.011224

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