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Evaluation of accuracy of invasive and non-invasive blood pressure monitoring in relation to carotid artery pressure in anaesthetised ponies

(2015) PFERDEHEILKUNDE. 31(1). p.33-38
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Abstract
Invasive blood pressure measurement (IBP) using peripheral arteries is a commonly used technique in equine anaesthesia, although the accuracy has not been demonstrated. Non-invasive blood pressure monitoring (NIBP) may be indicated far field anaesthesia, short procedures and foal anaesthesia. In the present report, the agreement of various IBP and NIBP measuring sites compared to carotid artery pressure was tested in anaesthetised experimental ponies. Six ponies were anaesthetised in lateral recumbency with sevoflurane and received either saline or dexmedetomidine boli followed by constant rate infusion (CRI). Invasive blood pressure measurements were obtained simultaneously from the carotid, facial and metatarsal arteries. NIBP measurements over both median arteries, metatarsal and middle coccygeal arteries were performed in random order. All blood pressure readings obtained were compared to carotid pressure by Bland-Altman analysis. Non-invasive blood pressure measurements had larger bias and poorer limits of agreement compared to IBP measurements. NIBP measurement from the coccygeal artery had the best repeatability and best limits of agreement of all NIBP positions and was not affected by the use of dexmedetomidine. The facial artery had smaller limits of agreement with dexmedetomidine treatment. There was no difference between the facial and metatarsal arteries during dexmedetomidine treatment in MAP and DAP Systolic arterial pressures from the metatarsal artery showed larger bias and larger limits of agreement compared to facial artery. In conclusion, NIBP measurement from the tail artery is a reliable alternative to direct arterial blood pressure measurement. Both the metatarsal and facial arteries have acceptable agreement with carotid artery pressure so the choice can be based on the logistics of the procedure.
Keywords
ISOFLURANE, MEDETOMIDINE, HORSES, RECOVERY QUALITY, CARDIOPULMONARY FUNCTION, CONSTANT RATE INFUSION, Monitoring, Blood Pressure, Equine, Anaesthesia, Dexmedetomidine, DOGS, DEXMEDETOMIDINE, REQUIREMENTS, HYPERTENSION

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Citation

Please use this url to cite or link to this publication:

Chicago
Gent, Thomas C, Andrea Schwarz, Leo Annina Hatz, Miguel Gozalo Marcilla, Stijn Schauvliege, Frank Gasthuys, and Regula Bettschart-Wolfensberger. 2015. “Evaluation of Accuracy of Invasive and Non-invasive Blood Pressure Monitoring in Relation to Carotid Artery Pressure in Anaesthetised Ponies.” Pferdeheilkunde 31 (1): 33–38.
APA
Gent, T. C., Schwarz, A., Hatz, L. A., Gozalo Marcilla, M., Schauvliege, S., Gasthuys, F., & Bettschart-Wolfensberger, R. (2015). Evaluation of accuracy of invasive and non-invasive blood pressure monitoring in relation to carotid artery pressure in anaesthetised ponies. PFERDEHEILKUNDE, 31(1), 33–38.
Vancouver
1.
Gent TC, Schwarz A, Hatz LA, Gozalo Marcilla M, Schauvliege S, Gasthuys F, et al. Evaluation of accuracy of invasive and non-invasive blood pressure monitoring in relation to carotid artery pressure in anaesthetised ponies. PFERDEHEILKUNDE. 2015;31(1):33–8.
MLA
Gent, Thomas C et al. “Evaluation of Accuracy of Invasive and Non-invasive Blood Pressure Monitoring in Relation to Carotid Artery Pressure in Anaesthetised Ponies.” PFERDEHEILKUNDE 31.1 (2015): 33–38. Print.
@article{5924639,
  abstract     = {Invasive blood pressure measurement (IBP) using peripheral arteries is a commonly used technique in equine anaesthesia, although the accuracy has not been demonstrated. Non-invasive blood pressure monitoring (NIBP) may be indicated far field anaesthesia, short procedures and foal anaesthesia. In the present report, the agreement of various IBP and NIBP measuring sites compared to carotid artery pressure was tested in anaesthetised experimental ponies. Six ponies were anaesthetised in lateral recumbency with sevoflurane and received either saline or dexmedetomidine boli followed by constant rate infusion (CRI). Invasive blood pressure measurements were obtained simultaneously from the carotid, facial and metatarsal arteries. NIBP measurements over both median arteries, metatarsal and middle coccygeal arteries were performed in random order. All blood pressure readings obtained were compared to carotid pressure by Bland-Altman analysis. Non-invasive blood pressure measurements had larger bias and poorer limits of agreement compared to IBP measurements. NIBP measurement from the coccygeal artery had the best repeatability and best limits of agreement of all NIBP positions and was not affected by the use of dexmedetomidine. The facial artery had smaller limits of agreement with dexmedetomidine treatment. There was no difference between the facial and metatarsal arteries during dexmedetomidine treatment in MAP and DAP Systolic arterial pressures from the metatarsal artery showed larger bias and larger limits of agreement compared to facial artery. In conclusion, NIBP measurement from the tail artery is a reliable alternative to direct arterial blood pressure measurement. Both the metatarsal and facial arteries have acceptable agreement with carotid artery pressure so the choice can be based on the logistics of the procedure.},
  author       = {Gent, Thomas C and Schwarz, Andrea and Hatz, Leo Annina and Gozalo Marcilla, Miguel and Schauvliege, Stijn and Gasthuys, Frank and Bettschart-Wolfensberger, Regula},
  issn         = {0177-7726},
  journal      = {PFERDEHEILKUNDE},
  keywords     = {ISOFLURANE,MEDETOMIDINE,HORSES,RECOVERY QUALITY,CARDIOPULMONARY FUNCTION,CONSTANT RATE INFUSION,Monitoring,Blood Pressure,Equine,Anaesthesia,Dexmedetomidine,DOGS,DEXMEDETOMIDINE,REQUIREMENTS,HYPERTENSION},
  language     = {eng},
  number       = {1},
  pages        = {33--38},
  title        = {Evaluation of accuracy of invasive and non-invasive blood pressure monitoring in relation to carotid artery pressure in anaesthetised ponies},
  url          = {http://www.hippiatrika.com/download.htm?id=20150105},
  volume       = {31},
  year         = {2015},
}

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