Related Experiment Video
Updated: Jan 6, 2026
04:48
Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
Published on: November 28, 2018
8.3K
Preliminary study: Changes in systolic volume index during Nuss surgery
B Cabeza Martín1, M García-Navlet1, A Melone1
1Anestesia y Reanimación, Hospital Universitario Gregorio Marañón, Sección Pediátrica, Madrid, Spain.
Revista Espanola De Anestesiologia Y Reanimacion
|May 23, 2025
Summary
Pectus excavatum surgery using the Nuss technique improves cardiac function. Hemodynamic monitoring shows increased stroke volume index and normalized cardiac index after bar placement, confirming surgical effectiveness.
Area of Science:
- Cardiovascular Surgery
- Pediatric Surgery
- Thoracic Surgery
Background:
- Pectus excavatum (PE) can cause progressive cardiopulmonary issues.
- Hemodynamic changes during PE surgical correction are understudied.
Purpose of the Study:
- To assess stroke volume index (SVI) changes during Nuss procedure using invasive arterial pressure (IAP) monitoring.
- To correlate IAP curve analysis with hemodynamic parameters like SVI and cardiac index (CI).
Main Methods:
- Prospective observational study of pediatric patients undergoing Nuss surgery via VATS.
- Continuous IAP monitoring with FloTrac system to evaluate SVI, CI, and SVV.
- Data collected at baseline, pre-bar placement (post-optimization), and post-bar placement.
Main Results:
- Six patients (14-16 years) with reduced ejection fraction of the right ventricle (FEVD) were studied.
- Baseline SVI and CI were low, improving after fluid optimization.
- Post-Nuss bar placement, SVI increased significantly, and CI normalized.
Conclusions:
- PE surgery with the Nuss technique effectively increases SVI.
- Intraoperative IAP analysis can objectively demonstrate improved hemodynamics after Nuss bar placement.
- This monitoring aids in optimizing cardiac function during PE correction.
