[Variability in interventions with pulmonary artery catheter data: Brazilian experience]

Area of Science:

• Critical Care Medicine
• Cardiovascular Monitoring
• Clinical Decision-Making

Context:

• Pulmonary Artery Catheter (PAC) use remains controversial due to safety and efficacy concerns.
• Previous studies indicated heterogeneous clinical decisions among American physicians based on PAC data.
• This study aimed to assess decision-making variability among Brazilian physicians using PAC data.

Purpose:

• To evaluate the heterogeneity of clinical interventions guided by Pulmonary Artery Catheter (PAC) data among Brazilian physicians.
• To compare these findings with a similar study conducted on American physicians.
• To investigate the impact of echocardiographic data on clinical decision-making consistency.

Summary:

• A survey with three clinical vignettes and PAC data was administered to 237 Brazilian physicians.
• Physicians were asked to select interventions, with homogeneity defined as >=80% agreement.
• Therapeutic interventions varied significantly across vignettes, with no intervention achieving 80% agreement, even with echocardiographic data.

Impact:

• Observed heterogeneity in therapeutic interventions mirrors previous findings, suggesting potential deficits in understanding PAC data interpretation.
• Results indicate a need to improve the teaching of basic pathophysiologic concepts in medical schools.
• This variability underscores challenges in standardizing critical care practices based on invasive monitoring.