Hemodynamic Profiles During Pulmonary Artery Pressure Sensor Implantation: Risk Stratification in Chronic Heart...

Area of Science:

• Cardiology
• Heart Failure Management
• Hemodynamic Monitoring

Background:

• Invasive hemodynamics can aid in identifying ambulatory advanced heart failure.
• Pulmonary artery pressure sensors offer a method for hemodynamic assessment during outpatient care.
• Four distinct hemodynamic profiles were analyzed for cardiac failure risk stratification.

Purpose of the Study:

• To analyze cardiac failure risk stratified by four hemodynamic profiles.
• To evaluate the association between hemodynamic profiles and 1-year cardiac failure events.
• To identify patient subgroups with advanced heart failure based on hemodynamic status.

Main Methods:

• A multicenter, retrospective cohort study of 512 patients with heart failure with reduced ejection fraction.
• Hemodynamic profiles categorized using the Stevenson heart failure classification (cold: cardiac index <2.2 L/min/m², wet: pulmonary capillary wedge pressure ≥18 mm Hg).
• Primary endpoint: 1-year cardiac failure (mortality, inotrope dependence, VAD/transplant need).

Main Results:

• Hemodynamic profiles: 30% warm-dry, 22% warm-wet, 21% cold-dry, 27% cold-wet.
• Overall, 23% of patients experienced cardiac failure within 1 year.
• 1-year event-free survival varied significantly: warm-dry (90%), warm-wet (74%), cold-dry (80%), and cold-wet (61%).
• Multivariable analysis revealed increased cardiac failure risk for cold-wet (aHR 4.4), cold-dry (aHR 2.2), and warm-wet (aHR 2.8) profiles compared to warm-dry.

Conclusions:

• Abnormal hemodynamic profiles at pulmonary artery pressure sensor placement are linked to higher cardiac failure risk.
• The cold-wet hemodynamic profile is particularly associated with significantly increased risk.
• These findings identify subgroups potentially progressing to ambulatory advanced heart failure.