What is the clinical evidence from this study?

Study design: Review. Population: Infective endocarditis. Intervention: Cardiac valve surgery. Primary outcome: Surgical complexity, perioperative outcomes, and re-surgery risk across cardiac valve types.

What question did this study set out to answer?

To propose a valve-specific structural vulnerability framework linking anatomical factors to surgical complexity and outcomes.

July 18, 2026Journal of Cardiothoracic Surgery0 citationsOpen Access

Valve-specific structural vulnerability in infective endocarditis: a narrative review of surgical complexity and outcomes

NRNajmi Hakim Abd Rani AMAfifah Mohamed ZIZaleha Md Isa

Key Result

Infective endocarditis follows a structural vulnerability gradient (prosthetic > aortic > mitral > tricuspid > pulmonary) where anatomical determinants drive surgical complexity and outcomes.

Key Points

To propose a valve-specific structural vulnerability framework linking anatomical factors to surgical complexity and outcomes.
Narrative review of literature from 2015 to 2025 using PubMed, Scopus, and MEDLINE.
Synthesis of systematic reviews, meta-analyses, multicentre registries, and guidelines.
Assessment of surgical outcomes based on valve-specific anatomical vulnerabilities.
A proposed structural vulnerability gradient: prosthetic valves > aortic > mitral > tricuspid > pulmonary.
Aortic infective endocarditis requires radical root reconstruction with elevated operative mortality in 30–40% of cases.
PVE shows the highest operative risk with longer surgery duration and significant reoperation rates.

Structured PICO

Population

A narrative review of literature from 2000-2024 evaluating surgical complexity, perioperative outcomes, and re-surgery risk across different cardiac valves in adults with infective endocarditis.

Intervention

Valve-specific surgical planning based on a structural vulnerability framework

Outcome

Surgical complexity, perioperative outcomes, and re-surgery risk

A proposed valve-specific structural vulnerability framework for infective endocarditis highlights that anatomical determinants drive surgical complexity and clinical prognosis, with prosthetic and aortic valves being the most vulnerable.

Limitations

Heterogeneous nature of available evidence, predominantly retrospective single-center cohort studies
Lack of formal meta-analytic synthesis
The proposed structural vulnerability gradient is a conceptual model that requires validation in prospective outcome registries

Abstract

Abstract Background Infective endocarditis (IE) carries in-hospital mortality of 15–20% and 1-year mortality approaching 40%, with surgery required in 40–50% of cases. IE is not uniformly distributed across cardiac valves aortic 30–45%, mitral 25–30%, tricuspid 5–10%, pulmonary aortic > mitral > tricuspid > pulmonary) is proposed as a conceptual model of valve-specific disease behaviour. Aortic IE carries maximal vulnerability through peri-annular extension, 30–40% of cases, requiring radical root reconstruction with elevated operative mortality. Mitral IE exhibits conditional vulnerability; repair yields superior outcomes over replacement. Tricuspid IE is predominantly IVDU-associated with comparatively lower operative mortality. PVE carries the highest operative risk, with prolonged operative times and significant reoperation rates. Conclusions IE is best understood as a valve- and substrate-specific disease in which anatomical determinants drive surgical complexity and clinical prognosis. This proposed vulnerability hierarchy may enable preoperative risk stratification, inform valve-specific surgical planning, and provide a mechanistic framework for understanding differential outcomes across valve types. Prospective outcome registries and standardised complexity metrics are needed to validate and refine this conceptual model.

问 AI

Bookmark

View Full Paper