Key result
Combined measurement of serum NE, ET-1, GABA, and VEGF levels accurately diagnosed pulmonary hypertension in COPD patients, yielding an AUC of 0.966 (87.5% sensitivity, 93.65% specificity).
Why the study?
Pulmonary hypertension is a common complication of chronic obstructive pulmonary disease, but the associated diagnostic factors remain uncertain.
Does the combination of serum NE, ET-1, GABA, and VEGF levels accurately diagnose pulmonary hypertension in patients with COPD?
Cross-Sectional (n=111)
No
Does the combination of serum NE, ET-1, GABA, and VEGF levels accurately diagnose pulmonary hypertension in patients with COPD?
Effect estimate: AUC 0.966
The combination of serum NE, ET-1, GABA, and VEGF levels provides high diagnostic accuracy for identifying pulmonary hypertension in patients with COPD.
May not yet alter PH diagnostic pathways in COPD; hypothesis-generating pending prospective validation.
Background: Pulmonary hypertension (PH) is the one of the most common complications of chronic obstructive pulmonary disease (COPD). Whereas, the associated diagnostic factors are uncertain. The present study aims to investigate useful diagnostic factors in patients with COPD and PH (COPD-PH). Patients and Methods: A total of 111 patients with COPD in Shanxi Bethune Hospital from December 2019 to December 2020 were divided into COPD (PASP≤50 mmHg) and COPD-PH groups (PASP>50 mmHg). Pulmonary function and chest CT results were collected. Routine blood, biochemical, and blood coagulation function indices were examined for all patients. Arterial blood gas analysis and serum cytokines were also measured. Differences in the distribution of the above indicators between the two groups were analyzed using binary logistic regression analysis to identify the risk factors of COPD-PH, and multiple linear regression analysis to determine the factors affecting PASP. The influencing factors and joint predictive factors of the above linear regression analysis were analyzed using the ROC curve. The area under the curve and the best cut-off value were calculated, and their predictive value and clinical significance in disease diagnosis were discussed. Results: A total of 27 indexes with statistically significant differences between the two groups were identified (P < 0.05). Binary Logistic regression analysis showed that the factors influencing the diagnosis of pulmonary hypertension were serum GABA, NE, VEGF, BUN, and LYM% levels (P < 0.05). Multiple linear regression showed that the factors influencing PASP were serum NE, ET-1, GABA, and VEGF levels, and the goodness of fit of the model was 0.748 (P < 0.001). ROC curve showed that the AUC of the combined diagnosis of serum NE, ET-1, GABA, and VEGF levels was 0.966 (sensitivity, 87.5%; specificity, 93.65%). Conclusion: Serum NE and ET-1 are risk factors for COPD-PH, whereas serum GABA and VEGF are protective factors against COPD-PH. The combined diagnostic value of serum NE, ET-1, GABA, and VEGF levels was the highest.
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Yan et al. (2023) conducted a cross-sectional in Chronic Obstructive Pulmonary Disease with Pulmonary Hypertension (n=111). Serum GABA, NE, ET-1, and VEGF levels vs. COPD without pulmonary hypertension (PASP ≤50 mmHg) was evaluated on Diagnosis of pulmonary hypertension (PASP >50 mmHg) (AUC 0.966). Combined measurement of serum NE, ET-1, GABA, and VEGF levels accurately diagnosed pulmonary hypertension in COPD patients, yielding an AUC of 0.966 (87.5% sensitivity, 93.65% specificity).
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