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Intra-Aortic Balloon Pumping in Acute Decompensated Heart Failure With Hypoperfusion: From Pathophysiology to Clinical Practice

2021· review· en· 71 citations· W3209759921 on OpenAlex· 10.1161/circheartfailure.121.008527

Why is this work in the frame?

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

Canadian affiliationAn author listed a Canadian institution. This is the only route the usual frame has.

The three-model screen

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All three models called this out of scope.

stratum: aff_core · design weight: 5595.24 (the sample is stratified; any rate computed without the weight is wrong)
Claude Opus 4.8OUT
genre: conceptual
about Canada: no
confidence: high

Narrative clinical review of intra-aortic balloon pump physiology and patient selection.

GPT-5.6 (high)OUT
genre: empirical
about Canada: no
confidence: high

The review concerns clinical use of an intra-aortic balloon pump rather than evidence-synthesis methodology.

Grok 4.5OUT
genre: empirical
about Canada: no
confidence: high

Clinical review of intra-aortic balloon pump therapy in heart failure; domain cardiology.

Abstract

Trials on intra-aortic balloon pump (IABP) use in cardiogenic shock related to acute myocardial infarction have shown disappointing results. The role of IABP in cardiogenic shock treatment remains unclear, and new (potentially more potent) mechanical circulatory supports with arguably larger device profile are emerging. A reappraisal of the physiological premises of intra-aortic counterpulsation may underpin the rationale to maintain IABP as a valuable therapeutic option for patients with acute decompensated heart failure and tissue hypoperfusion. Several pathophysiological features differ between myocardial infarction- and acute decompensated heart failure-related hypoperfusion, encompassing cardiogenic shock severity, filling status, systemic vascular resistances rise, and adaptation to chronic (if preexisting) left ventricular dysfunction. IABP combines a more substantial effect on left ventricular afterload with a modest increase in cardiac output and would therefore be most suitable in clinical scenarios characterized by a disproportionate increase in afterload without profound hemodynamic compromise. The acute decompensated heart failure syndrome is characterized by exquisite afterload-sensitivity of cardiac output and may be an ideal setting for counterpulsation. Several hemodynamic variables have been shown to predict response to IABP within this scenario, potentially guiding appropriate patient selection. Finally, acute decompensated heart failure with hypoperfusion may frequently represent an end stage in the heart failure history: IABP may provide sufficient hemodynamic support and prompt end-organ function recovery in view of more definitive heart replacement therapies while preserving ambulation when used with a transaxillary approach.

Stored with the screening record, where it is evidence for the labels above.

The record

Venue
Circulation Heart Failure
Topic
Mechanical Circulatory Support Devices
Field
Engineering
Canadian institutions
Surgical Specialties (Canada)
Funders
Keywords
Cardiogenic shockMedicineAfterloadCardiologyHeart failureInternal medicineMyocardial infarctionAcute decompensated heart failureShock (circulatory)Cardiac outputHemodynamicsIntra-Aortic Balloon Pumping
Has abstract in OpenAlex
yes