Comparison of blood pressure measurements obtained using non-invasive and invasive techniques, in anaesthetised companion animals

摘要: Measurement of blood pressure is a critical tool in the monitoring patients undergoing general anaesthesia and has become standard practice within medical fields. Adequate vital organ perfusion reported to be achieved if central mean arterial (MAP) greater than 60mmHg. In clinical practice, peripheral (ABP) used as an estimate ABP. Measurement ABP can performed either invasively or non-invasively. While invasive measurements (IBP) are considered more accurate non-invasive (NIBP) measurements, several studies comparing two methods have demonstrated that obtained non-invasively still clinically useful. As algorithms for measuring vary between different machines it not possible extrapolate results from one machine another thus each must assessed separately ensure interpretation appropriate. The purpose this thesis was compare both NIBP IBP measured using multi-parameter Surgivet monitor (V9203) anaesthetised dogs, horses, sheep. Concurrent were species at levels. These levels divided into following categories: hypotension ( 120 mmHg).For pooled data subdivided based on BP category relationship determined Bland-Altman technique. The bias precision concurrently recorded calculated. In all species, generally lower IBP. Overall dog horse data, showed least i.e. greatest agreement methods. Systolic tended show much evident low normotensive groups. Interestingly, sheep component study, systolic had group. To determine usefulness calculated guidelines American Association Advancement Medical Instrumentation College Veterinary Internal Medicine Hypertension Consensus Panel (AVCIMHCP). Using these guidelines, greyhounds found limits recommended by ACVIMHCP pressures except pressure. This suggests provide good diastolic species. conclusion, study useful alternative particularly horses greyhounds. However techniques does not, therefore needs interpreted cautiously. also demonstrate tendency underestimate finding remembered when interpreting patients.