A State-Observer for Patient Status in Cardiac Surgery

Abstract

Today, control of extracorporeal perfusion the standard technique in cardiac surgery is achieved by perfusionists making short-term decisions based on their clinical experience and on data collected pre- and intraoperatively. But in spite of extensive monitoring postoperative complications occur which most probably are due to unrecognized complications during surgery. By extending monitoring towards the perfusion status of important inner organs and the patient's metabolic status, the assessment of the actual patient situation could be improved. Thus, the adaptation of extracorporeal circulation to the patient's needs would become possible. As these parameters normally cannot be measured, we propose a system similar to a state-observer capable of calculating them.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412555

Entities

People

  • E. Naujokat
  • U. Kiencke

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Blood
  • Blood Flow
  • Cardiovascular Physiological Phenomena
  • Cardiovascular Surgery
  • Cardiovascular System
  • Control Systems
  • Control Theory
  • Elastic Properties
  • Flow
  • Flow Rate
  • Fluid Flow
  • Information Systems
  • Microvessels
  • Physical Properties
  • Physiological Monitoring
  • Simulations
  • Standards

Fields of Study

  • Medicine

Readers

  • Systems Analysis and Design
  • Trauma Surgery or Emergency Medicine.
  • Trauma or Military Medicine