Lack of relationship between the short-term hemodynamic effects of captopril and subsequent clinical responses.
Key result
Short-term hemodynamic responses to captopril correlated poorly with 3-month clinical improvements in heart failure patients, indicating routine invasive monitoring during initiation is unnecessary.
Why the study?
Do short-term hemodynamic effects of captopril predict subsequent clinical responses in patients with chronic congestive heart failure?
Population
14 stable patients with New York Heart Association Class II or III chronic congestive heart failure
Design
Cohort
Follow-up
3 months
Authors
Discussion
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Member takes
Implication
Supports avoiding routine invasive monitoring for captopril initiation in stable HF; hypothesis-generating for reliable long-term response predictors.
Key Points
- This study aims to investigate the relationship between hemodynamic effects of captopril and clinical responses in heart failure patients.
- Conducted resting and exercise hemodynamic studies over 48 hours of captopril therapy.
- Analyzed 14 patients with New York Heart Association Class II or III chronic congestive heart failure.
- Evaluated clinical response after 3 months, measuring exercise tolerance, heart size, and ejection fraction.
- Significant improvement in exercise tolerance, heart size, and ejection fraction was found in the study group.
- Poor correlations were observed between hemodynamic measurements and clinical improvements.
- Predictive capacity of hemodynamic responses for individual outcomes was inadequate.
Study Design
Type
Observational (n=14)
Structured PICO
Do short-term hemodynamic effects of captopril predict subsequent clinical responses in patients with chronic congestive heart failure?
P
Population
14 stable patients with New York Heart Association Class II or III chronic congestive heart failure
I
Intervention
Captopril therapy with resting and exercise hemodynamic studies before and during the initial 48 hours
O
Outcome
Correlation between short-term hemodynamic measurements and changes in clinical class, exercise tolerance, heart size, and ejection fraction after 3 monthssurrogate
Routine invasive hemodynamic monitoring during the initiation of captopril in stable heart failure patients is unnecessary, as short-term hemodynamic changes do not reliably predict long-term clinical benefit.
Cite This Study
Massie et al. (1984) conducted an observational in Chronic congestive heart failure (n=14). Captopril vs. Baseline was evaluated on Correlation between short-term hemodynamic effects and 3-month changes in clinical class, exercise tolerance, heart size, and ejection fraction. Short-term hemodynamic responses to captopril correlated poorly with 3-month clinical improvements in heart failure patients, indicating routine invasive monitoring during initiation is unnecessary.