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PULMONARY VASCULAR AND CARDIOVASCULAR NETWORK

Pulmonary Vascular Disease Section

In the right clinical scenario, three key hemodynamic components obtained by right heart catheterization (RHC) define precapillary pulmonary hypertension (PH) warranting vasodilator treatment: mean pulmonary arterial pressure >20 mm Hg, pulmonary capillary wedge pressure (PCWP) ≤15 mm Hg, and pulmonary vascular resistance (PVR) >2 Wood units.1 While these cutoffs are straightforward, a gap in practical application is evidenced by considerable variability in how PH providers perform and interpret RHC hemodynamic information.

CHEST
Dr. Abubakr A. Bajwa

A recent survey of 145 PH providers conducted by CHEST’s Pulmonary Vascular Disease Section shed light on the current RHC practices in the US.2 Regarding the respondents’ characteristics, 85% were in the 30-60 age range, 68% were males, and 71% were pulmonologists.

CHEST
Dr. Samantha Pettigrew

About half of the providers perform the RHC themselves. Most review the hemodynamic tracings, but up to 21% rely on the final report alone. Regarding PCWP, most (86%) obtain it during end-expiration, but only 42% routinely measure a PCWP saturation for confirmation. When faced with PVR discrepancies between thermodilution and indirect Fick (IFick), up to 30% chose either IFick or didn’t know which one to trust. Nearly 20% repeat the RHC at least annually, and 80% whenever the patient declines.

CHEST
Dr. Francisco J. Soto


This study provides the largest reported data on real-world RHC practices by PH physicians in the US. We found significant variability in hemodynamic interpretation. Standardization of RHC performance and hemodynamic evaluation is crucial to ensure appropriate PH management.


– Abubakr A. Bajwa, MBBS, FCCP

Member-at-Large

– Samantha Pettigrew, MD

Fellow-in-Training

– Francisco J. Soto, MD, MS, FCCP

Section Vice Chair
 

References

1. Simonneau et al. Eur Resp J. 2019;53(1):1801913

2. Soto et al. CHEST. 2023;164(4):Supplement A5832-A5834

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PULMONARY VASCULAR AND CARDIOVASCULAR NETWORK

Pulmonary Vascular Disease Section

In the right clinical scenario, three key hemodynamic components obtained by right heart catheterization (RHC) define precapillary pulmonary hypertension (PH) warranting vasodilator treatment: mean pulmonary arterial pressure >20 mm Hg, pulmonary capillary wedge pressure (PCWP) ≤15 mm Hg, and pulmonary vascular resistance (PVR) >2 Wood units.1 While these cutoffs are straightforward, a gap in practical application is evidenced by considerable variability in how PH providers perform and interpret RHC hemodynamic information.

CHEST
Dr. Abubakr A. Bajwa

A recent survey of 145 PH providers conducted by CHEST’s Pulmonary Vascular Disease Section shed light on the current RHC practices in the US.2 Regarding the respondents’ characteristics, 85% were in the 30-60 age range, 68% were males, and 71% were pulmonologists.

CHEST
Dr. Samantha Pettigrew

About half of the providers perform the RHC themselves. Most review the hemodynamic tracings, but up to 21% rely on the final report alone. Regarding PCWP, most (86%) obtain it during end-expiration, but only 42% routinely measure a PCWP saturation for confirmation. When faced with PVR discrepancies between thermodilution and indirect Fick (IFick), up to 30% chose either IFick or didn’t know which one to trust. Nearly 20% repeat the RHC at least annually, and 80% whenever the patient declines.

CHEST
Dr. Francisco J. Soto


This study provides the largest reported data on real-world RHC practices by PH physicians in the US. We found significant variability in hemodynamic interpretation. Standardization of RHC performance and hemodynamic evaluation is crucial to ensure appropriate PH management.


– Abubakr A. Bajwa, MBBS, FCCP

Member-at-Large

– Samantha Pettigrew, MD

Fellow-in-Training

– Francisco J. Soto, MD, MS, FCCP

Section Vice Chair
 

References

1. Simonneau et al. Eur Resp J. 2019;53(1):1801913

2. Soto et al. CHEST. 2023;164(4):Supplement A5832-A5834

 

PULMONARY VASCULAR AND CARDIOVASCULAR NETWORK

Pulmonary Vascular Disease Section

In the right clinical scenario, three key hemodynamic components obtained by right heart catheterization (RHC) define precapillary pulmonary hypertension (PH) warranting vasodilator treatment: mean pulmonary arterial pressure >20 mm Hg, pulmonary capillary wedge pressure (PCWP) ≤15 mm Hg, and pulmonary vascular resistance (PVR) >2 Wood units.1 While these cutoffs are straightforward, a gap in practical application is evidenced by considerable variability in how PH providers perform and interpret RHC hemodynamic information.

CHEST
Dr. Abubakr A. Bajwa

A recent survey of 145 PH providers conducted by CHEST’s Pulmonary Vascular Disease Section shed light on the current RHC practices in the US.2 Regarding the respondents’ characteristics, 85% were in the 30-60 age range, 68% were males, and 71% were pulmonologists.

CHEST
Dr. Samantha Pettigrew

About half of the providers perform the RHC themselves. Most review the hemodynamic tracings, but up to 21% rely on the final report alone. Regarding PCWP, most (86%) obtain it during end-expiration, but only 42% routinely measure a PCWP saturation for confirmation. When faced with PVR discrepancies between thermodilution and indirect Fick (IFick), up to 30% chose either IFick or didn’t know which one to trust. Nearly 20% repeat the RHC at least annually, and 80% whenever the patient declines.

CHEST
Dr. Francisco J. Soto


This study provides the largest reported data on real-world RHC practices by PH physicians in the US. We found significant variability in hemodynamic interpretation. Standardization of RHC performance and hemodynamic evaluation is crucial to ensure appropriate PH management.


– Abubakr A. Bajwa, MBBS, FCCP

Member-at-Large

– Samantha Pettigrew, MD

Fellow-in-Training

– Francisco J. Soto, MD, MS, FCCP

Section Vice Chair
 

References

1. Simonneau et al. Eur Resp J. 2019;53(1):1801913

2. Soto et al. CHEST. 2023;164(4):Supplement A5832-A5834

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