# Continuous Assessment of Left Ventricular Outflow Obstruction in Transcatheter Aortic Valve Implantation

**Authors:** Yu Ando, Atsushi Sugiura, Masanori Yamamoto

PMC · DOI: 10.1016/j.jaccas.2025.106523 · JACC Case Reports · 2025-12-16

## TL;DR

This paper presents a case where continuous monitoring helped detect and manage a dangerous heart complication after a valve implantation procedure.

## Contribution

The study highlights the use of SavvyWire for real-time detection of left ventricular outflow obstruction during TAVI.

## Key findings

- Continuous hemodynamic monitoring identified LVOT obstruction immediately after valve deployment.
- Prompt treatment with fluids and vasopressors stabilized the patient's condition.
- SavvyWire monitoring may improve safety in TAVI procedures by enabling early diagnosis.

## Abstract

Left ventricular outflow tract (LVOT) obstruction is a rare but fatal complication after transcatheter aortic valve implantation (TAVI). Early detection and timely intervention are essential for favorable clinical outcomes.

We report a case of LVOT obstruction diagnosed and dynamically monitored via a SavvyWire (Haemonetics). A 78-year-old woman underwent transfemoral TAVI for severe valve stenosis, and continuous hemodynamic monitoring by the SavvyWire identified a significant aorto–left ventricular pressure gradient with systemic hypotension immediately after valve deployment, indicating LVOT obstruction. Prompt administration of intravenous fluids and vasopressors resulted in rapid hemodynamic stabilization.

This case underscores the utility of the SavvyWire for immediate detection and management of dynamic LVOT obstruction, potentially improving safety profiles in TAVI procedures.

Continuous monitoring of the aorto–left ventricular pressure gradient can facilitate early diagnosis of LVOT obstruction in TAVI procedures.

## Full-text entities

- **Diseases:** LVOT obstruction (MESH:D000092242), valve stenosis (MESH:D001024), hypotension (MESH:D007022)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

4 references — full list in the complete paper: https://tomesphere.com/paper/PMC12925999/full.md

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Source: https://tomesphere.com/paper/PMC12925999