Redefining Procedural Success After Transcatheter Aortic Valve Implantation: Why Nonfatal Complications Matter

Q: What is the clinical evidence from this study?

Study design: Editorial. Population: Post-transcatheter aortic valve implantation (TAVI) (n=742). Intervention: Early nonfatal complications (VARC-3 early safety composite endpoint) vs. Uncomplicated postprocedural course. Primary outcome: Mortality between 30 days and 1 year (HR 2.14, 95% CI 1.07-4.27).

Q: What does this research mean for the field?

Early nonfatal complications occurring within 30 days of transcatheter aortic valve implantation are independently associated with an approximately twofold increase in mortality between 30 days and 1 year. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Marisa Avvedimento

doi:10.1016/j.shj.2026.101102

July 22, 2026Structural HeartOpen Access

Redefining Procedural Success After Transcatheter Aortic Valve Implantation: Why Nonfatal Complications Matter

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Key result

Early nonfatal complications within 30 days of TAVI were independently associated with an approximately twofold increase in mortality risk between 30 days and 1 year (HR 2.14).

Why the study?

Does the occurrence of early nonfatal complications following TAVI increase the risk of mortality between 30 days and 1 year in patients who survive the first 30 days?

Key Points

To determine whether early nonfatal complications following transcatheter aortic valve implantation (TAVI) independently influence mortality and quality of life between 30 days and 1 year.
Post-hoc analysis of 742 patients who survived the first 30 days after TAVI in the randomized LANDMARK trial.
Early nonfatal events were defined according to the Valve Academic Research Consortium–3 (VARC-3) early safety composite endpoint at 30 days.
Assessed mortality from 30 days to 1 year and quality of life using the Short Form-12 (SF-12) questionnaire.
Overall, 177 patients (23.9%) experienced at least 1 early nonfatal event within the first 30 days.
Mortality between 30 days and 1 year was significantly higher in patients with early complications compared to those with an uncomplicated course (8.0% vs. 3.9%; hazard ratio: 2.14; 95% CI: 1.07–4.27).
Moderate or severe prosthetic valve regurgitation, acute kidney injury, and major vascular complications each substantially increased mortality risk, whereas new permanent pacemaker implantation did not.

Structured PICO

Does the occurrence of early nonfatal complications following TAVI increase the risk of mortality between 30 days and 1 year in patients who survive the first 30 days?

P

Population

742 patients who survived the first 30 days after transcatheter aortic valve implantation, followed up to 1 year to evaluate the prognostic relevance of early nonfatal complications.

E

Exposure

Occurrence of at least 1 early nonfatal complication (defined by the VARC-3 early safety composite endpoint, including stroke, type 3 bleeding, major vascular complications, acute kidney injury, moderate or severe prosthetic valve regurgitation, new permanent pacemaker implantation, and device- or procedure-related reintervention)

C

Comparator

Uncomplicated postprocedural course (absence of early nonfatal events)

O

Outcome

Mortality between 30 days and 1 yearhard clinical

Main Result

Hazard Ratio: 2.14 (95% CI 1.07–4.27)

Absolute Event Rate: 8% vs 3.9%

Limitations

Heterogeneous nature of the study endpoint, as individual components differ substantially in mechanisms and severity
Post-hoc analysis is exploratory and cannot establish causal relationships
Relatively small number of individual complications limited the statistical power to reliably assess each nonfatal event
Quality of life was assessed using the generic SF-12 rather than a disease-specific questionnaire
As a post-hoc analysis, the study remains exploratory and therefore cannot establish causal relationships
The relatively small number of individual complications limited the statistical power to reliably assess the prognostic contribution of each nonfatal event
Quality of life was assessed using the generic SF-12 rather than the disease-specific Kansas City Cardiomyopathy Questionnaire, potentially limiting sensitivity

Implication

Early nonfatal complications following TAVI are independently associated with an approximately twofold increase in mortality risk between 30 days and 1 year, highlighting their importance as meaningful markers of long-term outcomes beyond early procedural survival.

Abstract

Transcatheter aortic valve implantation (TAVI) has undergone a remarkable evolution over the past 2 decades in becoming an established therapy across the entire spectrum of surgical risk. 1 Continuous improvements in device technology, procedural planning

Discussion

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Cite This Study

Marisa Avvedimento (2026) conducted an editorial in Post-transcatheter aortic valve implantation (TAVI) (n=742). Early nonfatal complications (VARC-3 early safety composite endpoint) vs. Uncomplicated postprocedural course was evaluated on Mortality between 30 days and 1 year (HR 2.14, 95% CI 1.07-4.27). Early nonfatal complications within 30 days of TAVI were independently associated with an approximately twofold increase in mortality risk between 30 days and 1 year (HR 2.14).

synapsesocial.com/papers/6ad115e100741cc3fba7db03 https://doi.org/10.1016/j.shj.2026.101102

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Redefining Procedural Success After Transcatheter Aortic Valve Implantation: Why Nonfatal Complications Matter

Key Points

Structured PICO

Main Result

Limitations

Implication

Abstract

Discussion

Cite This Study

Redefining Procedural Success After Transcatheter Aortic Valve Implantation: Why Nonfatal Complications Matter

Key Points

Structured PICO

Main Result

Limitations

Implication

Abstract

Discussion

Cite This Study

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