Screening for Pulmonary Arterial Hypertension in Systemic Sclerosis
Author Information
Author(s): Maria J Overbeek, Herman Groepenhoff, Alexandre E Voskuyl, Egbert F Smit, Jochem WL Peeters, Anton Vonk-Noordegraaf, Marieke D Spreeuwenberg, Ben C Dijkmans, Anco Boonstra
Primary Institution: VU University Medical Center, Amsterdam, The Netherlands
Hypothesis
Can membrane diffusion and capillary blood volume measurements be useful for screening pulmonary arterial hypertension in systemic sclerosis patients?
Conclusion
The study found that patients with systemic sclerosis and pulmonary arterial hypertension have lower diffusion capacity than those without, suggesting that these measurements are not useful for screening.
Supporting Evidence
- SScPAH+ patients had lower TLCO% values than SScPAH- patients.
- Dm% was significantly lower in SScPAH+ compared to SScPAH-.
- No significant difference in Vc% was found between the two groups.
- Correlation between Dm% and hemodynamic parameters was not found.
Takeaway
Doctors looked at how well the lungs work in people with a disease called systemic sclerosis to see if certain tests could help find a serious lung problem called pulmonary arterial hypertension, but they found it didn't help.
Methodology
The study included 11 patients with systemic sclerosis and pulmonary arterial hypertension, 13 without, and 10 healthy controls, measuring lung function and adjusting for fibrosis.
Potential Biases
The study may be biased due to the small number of patients and the exclusion of those with severe fibrosis.
Limitations
The study had a small sample size and potential inaccuracies in measuring diffusion capacity.
Participant Demographics
Participants included 24 patients, with 11 having pulmonary arterial hypertension and 13 without, all suffering from limited cutaneous systemic sclerosis.
Statistical Information
P-Value
<0.0001
Confidence Interval
95% CI 9.0–25.9; 95% CI 6.0–21.7
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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