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April 1, 1997Medical Decision Making

Use of a Probabilistic Neural Network to Estimate the Risk of Mortality after Cardiac Surgery

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Why the study?

Can a probabilistic neural network accurately estimate the risk of mortality after cardiac surgery?

Population

1,477 consecutive cardiac surgery patients operated on in a teaching hospital during a four-year period

Design

Cohort, Patient records randomly divided into training and validation sets

Authors

RORichard K. Orr

Discussion

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Overview

Should not yet change practice for cardiac surgery risk estimation; leaves open prospective validation of neural networks.

Structured PICO

Can a probabilistic neural network accurately estimate the risk of mortality after cardiac surgery?

P
Population
1,477 consecutive cardiac surgery patients operated on in a teaching hospital during a four-year period (1991-1994)
I
Intervention
Probabilistic neural network (PNN) model using seven routine clinical variables
O
Outcome
Accuracy, calibration, and discrimination of mortality risk estimation

A probabilistic neural network using seven routine clinical variables can accurately estimate mortality risk following cardiac surgery.

Cite This Study

Richard K. Orr (1997) studied this question.

synapsesocial.com/papers/6a19d59b60e90a7f5feab819https://doi.org/10.1177/0272989x9701700208
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Neural Network Assessment of Perioperative Cardiac Risk in Vascular Surgery Patients1998 · 47 citations
  2. 2Predicting adverse outcomes of cardiac surgery with the application of artificial neural networks2008 · 21 citations
  3. 3Predicting Mortality after Coronary Artery Bypass Surgery1998 · 43 citations
  4. 4Development and Validation of a Deep Neural Network Model for Prediction of Postoperative In-hospital Mortality2018 · 197 citations
  5. 5Artificial intelligence versus logistic regression statistical modelling to predict cardiac complications after noncardiac surgery1994 · 36 citations