Defining surgical rescue when assessing transcatheter aortic valve implantation without on-site cardiac surgery

Q: What is the clinical evidence from this study?

Study design: Letter. Population: Aortic valve disease requiring TAVI (n=300). Intervention: Transcatheter aortic valve implantation (TAVI) without on-site cardiac surgery. Primary outcome: Emergency cardiac surgery (ECS).

Güney Sarıoğlu

doi:10.24875/recice.m26000623

September 4, 2026REC interventional cardiology (English Edition)Open Access

Defining surgical rescue when assessing transcatheter aortic valve implantation without on-site cardiac surgery

View Full Paper

Ask AI

Bookmark

Share

Key result

TAVI without on-site surgery requires broader rescue definitions to prove noninferiority despite 0% emergency surgeries.

n=300

Key Points

To critically evaluate the definitions of emergency cardiac surgery and the statistical basis for claims of noninferiority in transcatheter aortic valve implantation performed without on-site surgical backup.
Critiqued a clinical report evaluating 300 consecutive transcatheter aortic valve implantation (TAVI) procedures performed without immediate on-site cardiac surgery support.
Assessed endpoint definitions against Valve Academic Research Consortium 3 (VARC-3) criteria, statistical limits of zero-event cohorts, and formal noninferiority testing frameworks.
The reported 0% emergency cardiac surgery rate excluded 1 patient with cardiac tamponade and persistent pericardial effusion who required delayed exploratory cardiac surgery and died postoperatively.
With zero observed emergency cardiac surgery events among 300 procedures, the upper bound of the 95% exact binomial confidence interval is approximately 1%.
Observed mortality similar to a national registry does not establish statistical noninferiority in the absence of a prespecified margin and confidence interval framework.

PICO

P

Population

300 consecutive patients undergoing transcatheter aortic valve implantation without immediate on-site cardiac surgery support in a Portuguese center.

I

Intervention / Comparator

Transcatheter aortic valve implantation (TAVI) without on-site cardiac surgery

O

Primary Outcome

Emergency cardiac surgery (ECS)

Limitations

Zero observed events in 300 procedures leaves an upper bound of the 95% CI at approximately 1%, meaning a clinically relevant rescue rate remains possible.
Absence of a prespecified noninferiority framework precludes formal claims of noninferiority.

Implication

Methodological analysis reveals limitations in endpoint definitions during transcatheter aortic valve implantation without on-site cardiac surgery, highlighting the need for rigorous rescue standards.

Abstract

No abstract yet. The journal hasn't published one we can show.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Güney Sarıoğlu (2026) conducted a letter in Aortic valve disease requiring TAVI (n=300). Transcatheter aortic valve implantation (TAVI) without on-site cardiac surgery was evaluated on Emergency cardiac surgery (ECS). Transcatheter aortic valve implantation without on-site surgery requires broader rescue definitions and prespecified margins to prove noninferiority, despite a 0% emergency surgery rate in 300 cases.

synapsesocial.com/papers/6a9c01076b95aff0620ec80b https://doi.org/10.24875/recice.m26000623

View Full Paper

Ask AI

Bookmark

Share

Defining surgical rescue when assessing transcatheter aortic valve implantation without on-site cardiac surgery

Key Points

PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

Defining surgical rescue when assessing transcatheter aortic valve implantation without on-site cardiac surgery

Key Points

PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

Keep reading

More from REC interventional cardiology (English Edition)

Keep reading

More from REC interventional cardiology (English Edition)