The spatial ventricular gradient is associated with adverse outcomes in acute pulmonary embolism.
Ann Noninvasive Electrocardiol
; 28(3): e13041, 2023 05.
Article
in En
| MEDLINE
| ID: mdl-36691977
ABSTRACT
BACKGROUND:
The spatial ventricular gradient (SVG) is a vectorcardiographic measurement that reflects cardiac loading conditions via electromechanical coupling.OBJECTIVES:
We hypothesized that the SVG is correlated with right ventricular (RV) strain and is prognostic of adverse events in patients with acute pulmonary embolism (PE).METHODS:
Retrospective, single-center study of patients with acute PE. Electrocardiogram (ECG), imaging, and outcome data were obtained. SVG components were regressed on tricuspid annular plane systolic excursion (TAPSE), qualitative RV dysfunction, and RV/left ventricular (LV) ratio. Odds of adverse outcomes (30-day mortality, vasopressor requirement, or advanced therapy) after PE were regressed on demographics, RV/LV ratios, traditional ECG signs of RV dysfunction, and SVG components using a logit model.RESULTS:
ECGs from 317 patients (48% male, age 63.1 ± 16.6 years) with acute PE were analyzed; 36 patients (11.4%) experienced an adverse event. Worse RV hypokinesis, larger RV/LV ratio, and smaller TAPSE were associated with smaller SVG X and Y components, larger SVG Z components, and smaller SVG vector magnitude (p < .001 for all). In multivariable logistic regression, odds of adverse events after PE decreased with increasing SVG magnitude and TAPSE (OR 0.32 and 0.54 per standard deviation increase; p = .03 and p = .004, respectively). Receiver operating characteristic (ROC) analysis showed that, when combined with imaging, replacing traditional ECG criteria with the SVG significantly improved the area under the ROC from 0.70 to 0.77 (p = .01).CONCLUSION:
The SVG is correlated with RV dysfunction and adverse outcomes in acute PE and has a better prognostic value than traditional ECG markers.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pulmonary Embolism
/
Electrocardiography
Type of study:
Observational_studies
/
Prognostic_studies
/
Qualitative_research
/
Risk_factors_studies
Limits:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Ann Noninvasive Electrocardiol
Journal subject:
CARDIOLOGIA
Year:
2023
Document type:
Article
Affiliation country:
Estados Unidos