ArticleJACC. Case reports2026
Bedside IVC Echocardiography to Distinguish Autonomic Dysfunction-Predominant Orthostasis From Right Ventricular Failure in Patients With LVADs.
Article in JACC. Case reports, 2026. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
objectiveTo present a bedside echocardiography approach using inferior vena cava size and collapsibility to distinguish between autonomic dysfunction-predominant orthostatic hypotension and right ventricular failure in symptomatic continuous-flow left ventricular assist device patients. KEY STEPS: Identify patients with a continuous-flow left ventricular assist device and presenting orthostatic intolerance symptoms or low-flow alarms. Perform bedside echocardiography evaluating inferior vena cava size and collapsibility while the patient is supine, and again after standing for 3 to 5 minutes. Categorize findings. Right ventricular failure: Indicated by a plethoric, poorly collapsible inferior vena cava. Autonomic dysfunction-predominant orthostatic hypotension: Indicated by a small, highly collapsible inferior vena cava. POTENTIAL PITFALLS: Failing to optimize volume status and device parameters prior to testing may lead to unclear or inaccurate clinical assessments. TAKE-HOME MESSAGES: Autonomic dysfunction orthostatic hypotension is a frequently underrecognized complication of continuous-flow left ventricular assist device support caused by reduced pulsatility. Bedside assessment of inferior vena cava collapsibility serves as a method to identify the underlying phenotype and guide clinical management.
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