Insights

Pulmonary artery stenosis is the primary reason for reoperation after arterial switch (Jatene) surgery in patients with transposition of the great arteries. Coronary anomalies are the sole predictor of reoperation need.

Area of Science:

  • Pediatric Cardiac Surgery
  • Congenital Heart Disease
  • Surgical Outcomes

Background:

  • Arterial switch operation (Jatene procedure) has been performed since 1989.
  • Evaluating outcomes is crucial for identifying reoperation causes and predictors.
  • This study focuses on outcomes following arterial switch for d-transposition of the great arteries (d-TGA).

Purpose of the Study:

  • To identify the main causes of reoperation after arterial switch surgery.
  • To determine variables that predict the need for reoperation in patients with d-TGA.
  • To analyze outcomes in a cohort of patients undergoing arterial switch at Santa Marta Hospital.

Main Methods:

  • Retrospective analysis of 91 patients with d-TGA.
  • Patients underwent arterial switch operation between 1999 and 2016.
  • Follow-up averaged 6 years (range 1-21 years).

Main Results:

  • Reoperation was required in 21% of patients, with pulmonary artery stenosis being the main indication (47%).
  • Overall cumulative mortality was 9.9%.
  • Coronary pattern anomalies were the only statistically significant predictor (P<0.05) of reoperation need in both univariate and multivariate analyses.

Conclusions:

  • Pulmonary artery stenosis is the leading cause for reoperation post-arterial switch.
  • The presence of coronary anomalies is the sole identified predictor for reoperation.
  • These findings aid in risk stratification and management of patients undergoing arterial switch for d-TGA.
Abstract

Related Concept Videos

Switching of BJT01:22

Switching of BJT

Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
876
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries
46.1K
Prediction Intervals01:03

Prediction Intervals

The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y. 
3.4K
Sensitivity, Specificity, and Predicted Value01:13

Sensitivity, Specificity, and Predicted Value

In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
Sensitivity is the...
1.4K
End Point Prediction: Gran Plot01:07

End Point Prediction: Gran Plot

A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, titration data is collected as a function of the titrant's volume up to a point less than the equivalence volume and then transformed into a linear format. The straight line is extended to the x-axis, indicating the necessary titrant volume to achieve the equivalence point.
For potentiometric titration, the Gran plot is created by plotting...
1.2K
Predicting Reaction Outcomes02:24

Predicting Reaction Outcomes

Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
11.0K