Publication
Comparison of invasive and non-invasive blood pressure measurements in anaesthetised adult horses using an automated monitor
| Summary: | Blood pressure is defined as the product of cardiac output (CO) and peripheral vascular resistance (PVR) and is an extremely useful haemodynamic parameter that allows an indirect way of assessing the cardiovascular performance which reflects the organ perfusion. Clinically, arterial blood pressure measurement can be useful for diagnosis, therapeutic monitoring and prognosis of different diseases. It can be obtained either invasively or non-invasively, with pro and cons for each of these. Nowadays, the invasive blood pressure measurement is considered to be the gold-standard in horses undergoing general anaesthesia providing its continuous monitoring. However, to extend its usefulness as a clinical parameter, a trustworthy non-invasive technique which is practical and easily applied to conscious and anaesthetized horses is required. This study aimed at determining the accuracy and precision of a non-invasive blood pressure measurement method when compared to the gold-standard method (invasive blood pressure). To do so, invasive and non-invasive blood pressure measurements were collected simultaneously using the EDAN iM8 VET multiparameter monitor, in eleven horses presented for elective surgical procedures at an equine referral hospital, between September of 2019 and April of 2020. We started by investigating the correlation between simultaneous invasive and non-invasive methods of blood pressure measurement. Furthermore, we intended to identify whether this correlation differed when conditions like the horse’s recumbency and blood pressure range (hypo-, normo-, and hypertension) varied. We showed that, despite being less accurate than the invasive (gold-standard) method, the non-invasive blood pressure measurement method, using the EDAN iM8 VET multiparameter monitor, is reliable for the use in healthy anaesthetized horses. Moreover, we showed that for the horses in left lateral recumbency a stronger correlation between methods was seen. |
|---|---|
| Main Authors: | Antunes, Raquel Coelho Loyo Pequito |
| Subject: | Anaesthesia horses invasive blood pressure measurement non-invasive blood pressure measurement EDAN iM8 VET monitor anestesia cavalos medição invasiva da pressão arterial medição não invasiva da pressão arterial monitor EDAN iM8 VET |
| Year: | 2020 |
| Country: | Portugal |
| Document type: | master thesis |
| Access type: | open access |
| Associated institution: | Universidade de Lisboa |
| Language: | English |
| Origin: | Repositório da Universidade de Lisboa |
| Summary: | Blood pressure is defined as the product of cardiac output (CO) and peripheral vascular resistance (PVR) and is an extremely useful haemodynamic parameter that allows an indirect way of assessing the cardiovascular performance which reflects the organ perfusion. Clinically, arterial blood pressure measurement can be useful for diagnosis, therapeutic monitoring and prognosis of different diseases. It can be obtained either invasively or non-invasively, with pro and cons for each of these. Nowadays, the invasive blood pressure measurement is considered to be the gold-standard in horses undergoing general anaesthesia providing its continuous monitoring. However, to extend its usefulness as a clinical parameter, a trustworthy non-invasive technique which is practical and easily applied to conscious and anaesthetized horses is required. This study aimed at determining the accuracy and precision of a non-invasive blood pressure measurement method when compared to the gold-standard method (invasive blood pressure). To do so, invasive and non-invasive blood pressure measurements were collected simultaneously using the EDAN iM8 VET multiparameter monitor, in eleven horses presented for elective surgical procedures at an equine referral hospital, between September of 2019 and April of 2020. We started by investigating the correlation between simultaneous invasive and non-invasive methods of blood pressure measurement. Furthermore, we intended to identify whether this correlation differed when conditions like the horse’s recumbency and blood pressure range (hypo-, normo-, and hypertension) varied. We showed that, despite being less accurate than the invasive (gold-standard) method, the non-invasive blood pressure measurement method, using the EDAN iM8 VET multiparameter monitor, is reliable for the use in healthy anaesthetized horses. Moreover, we showed that for the horses in left lateral recumbency a stronger correlation between methods was seen. |
|---|
Funded activities
No funded projects found.