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Related Concept Videos

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Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
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Bentall Procedure: A Systematic Review and Meta-Analysis.

Aart Mookhoek1, Nelleke M Korteland1, Bardia Arabkhani1

  • 1Erasmus University Medical Center, Rotterdam, The Netherlands.

The Annals of Thoracic Surgery
|February 10, 2016
PubMed
Summary

The Bentall procedure for aortic root replacement shows decreasing reoperation rates over time. However, long-term mortality and complications like bleeding and thromboembolism remain significant concerns for patients.

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Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Medical Outcomes Research

Background:

  • The Bentall procedure is the established standard for aortic root replacement.
  • A comprehensive review of current outcomes following the Bentall procedure is needed.

Purpose of the Study:

  • To systematically review and analyze the long-term outcomes of the Bentall procedure using mechanical valve prostheses.
  • To provide an updated overview of patient characteristics and event rates.

Main Methods:

  • A systematic review and meta-analysis of 46 studies involving 7,629 patients.
  • Data were pooled using the inverse variance method within a random-effects model.
  • Outcomes reported as linearized occurrence rates (percentage per patient-year) with 95% confidence intervals.

Main Results:

  • Pooled early mortality was 6%.
  • Mean follow-up was 6 years, with late mortality at 2.02% annually.
  • Annual rates for major adverse valve-related events were 2.66%, hemorrhage 0.64%, and thromboemboli 0.77%.

Conclusions:

  • Aortic root reoperation rates have declined with more recent Bentall procedures.
  • Late mortality, bleeding, and thromboembolic events remain critical concerns.
  • Findings can inform the evaluation of new surgical techniques like valve-sparing aortic root replacement.