Details

Autor(en) / Beteiligte

• Albani, Stefano
• Stolfo, Davide
• Venkateshvaran, Ashwin
• Chubuchny, Vlad
• Biondi, Federico
• De Luca, Antonio
• Lo Giudice, Francesco
• Pasanisi, Emilio M.
• Petersen, Christina
• Airò, Edoardo
• Bauleo, Carolina
• Ciardetti, Marco
• Coceani, Michele
• Formichi, Bruno
• Spiesshoefer, Jens
• Savarese, Gianluigi
• Lund, Lars H.
• Emdin, Michele
• Sinagra, Gianfranco
• Manouras, Aristomenis
• Giannoni, Alberto

Titel

Echocardiographic Biventricular Coupling Index to Predict Precapillary Pulmonary Hypertension

Ist Teil von

• Journal of the American Society of Echocardiography, 2022-07, Vol.35 (7), p.715-726

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2022

Link zum Volltext

Quelle

ScienceDirect

Beschreibungen/Notizen

• Pulmonary hypertension (PH) is a frequent and detrimental condition. Right heart catheterization (RHC) is the gold standard to identify PH subtype (precapillary from postcapillary PH) and is key for treatment allocation. In this study, the novel echocardiographic biventricular coupling index (BCI), based on the ratio between right ventricular stroke work index and left ventricular E/E′ ratio, was tested for the discrimination of PH subtype using RHC as the comparator. BCI was derived in 334 consecutive patients who underwent transthoracic echocardiography and RHC for all indications. BCI was then tested in a validation cohort of 1,349 patients. The accuracy of BCI to identify precapillary PH was high in the derivation cohort (area under the curve, 0.82; 95% CI, 0.78-0.88; P < .001; optimal cut point, 1.9). BCI identified patients with precapillary PH with high accuracy also in the validation cohort (area under the curve, 0.87 [95% CI, 0.85-0.89; P < .001]; subgroup with PH: area under the curve, 0.91 [95% CI, 0.89-0.93; P < .001]; cut point, 1.9; sensitivity, 82%; specificity, 89%; positive predictive value, 77%; negative predictive value, 92%). BCI outperformed both the D'Alto score (Z = 3.56; difference between areas = 0.05; 95% CI, 0.02-0.07; P < .001) and the echocardiographic pulmonary–to–left atrial ratio index (Z = 2.88; difference between areas = 0.02; 95% CI, 0.01-0.04; P = .004). BCI is a novel, noninvasive index based on routinely available echocardiographic parameters that identifies with high accuracy patients with precapillary PH. BCI may be of value in the screening workup of patients with PH. •BCI is a novel index that may correctly identify precapillary PH.•BCI may reduce unnecessary referrals for RHC.