ArticleCardiology research2022
The Association of N-Terminal Pro-Brain Natriuretic Peptide With Time to Clinical Worsening in Hispanic Patients With Pulmonary Arterial Hypertension.
Article in Cardiology research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Measurement of N-terminal pro-brain natriuretic peptide (NT-proBNP) level is an important parameter in the risk assessment of patients with pulmonary arterial hypertension (PAH). Data about the prognostic value of NT-proBNP in the Hispanic PAH population are lacking. Historically, clinical trials in PAH have only included a minority of Hispanic patients. It has been reported that baseline NT-proBNP levels differ between different ethnicities. Furthermore, NT-proBNP levels can be impacted by declining renal function, making its interpretation difficult regarding clinical decision making. Methods: In a retrospective single-center cohort analysis, Hispanic patients with PAH had a baseline outpatient NT-proBNP level drawn during a period of clinical stability and were followed for 1 year to monitor for time to clinical worsening (TTCW). The association of baseline NT-proBNP and TTCW was assessed in patients with normal and abnormal renal function. Results: A total of 26 patients (22%) met the clinical endpoint of clinical worsening. Twenty-seven patients (24%) had chronic kidney disease (CKD). At baseline NT-proBNP levels showed a significant inverse correlation with 6-min walk test (6MWD, r = -0.382, P = 0.02), and a significant positive correlation with renal function (r = 0.273, P = 0.05). NT-proBNP levels did not correlate with age (r = 0.19, P = 0.11) or body mass index (BMI) (r = -0.292, P = 0.061). NT-proBNP levels of > 1,415 ng/L were significantly associated with shorter TTCW (P < 0.01) in all patients and in patients with CKD (P = 0.03). A stepwise increase in NT-proBNP levels by 100 ng/L was associated with a higher risk of meeting the clinical endpoint of TTCW in patients with normal renal function (hazard ratio (HR) = 1.8, P < 0.01) and CKD (HR = 1.5, P < 0.01). Conclusions: In Hispanic patients with PAH, NT-proBNP is a valuable tool to predict 1-year TTCW, independent of renal function.
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