Clinical monitoring of cardiac output assessed by transoesophageal echocardiography in anaesthetised dogs: a comparison with the thermodilution technique

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dc.creatorMatheus Matioli Mantovani
dc.creatorDenise T. Fantoni
dc.creatorAndré Martins Gimenes
dc.creatorJacqueline Ribeiro de Castro
dc.creatorPatricia B. Flor
dc.creatorKeila K. Ida
dc.creatorDenise Saretta Schwartz
dc.date.accessioned2024-09-27T22:26:56Z
dc.date.accessioned2025-09-09T00:13:54Z
dc.date.available2024-09-27T22:26:56Z
dc.date.issued2017
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doi10.1186/s12917-017-1227-9
dc.identifier.issn1746-6148
dc.identifier.urihttps://hdl.handle.net/1843/76998
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBMC Veterinary Research
dc.rightsAcesso Aberto
dc.subjectDébito Cardíaco
dc.subjectEcocardiografia Transesofagiana
dc.subjectCães
dc.subjectTermodiluição
dc.titleClinical monitoring of cardiac output assessed by transoesophageal echocardiography in anaesthetised dogs: a comparison with the thermodilution technique
dc.typeArtigo de periódico
local.citation.epage8
local.citation.issue1
local.citation.spage1
local.citation.volume13
local.description.resumoBackground: Cardiac output (CO) is an important haemodynamic parameter to monitor in patients during surgery. However, the majority of the techniques for measuring CO have a limited application in veterinary practice due to their invasive approach and associated complexity and risks. Transoesophageal echocardiography (TEE) is a technique used to monitor cardiac function in human patients during surgical procedures and allows CO to be measured non-invasively. This prospective clinical study aimed to compare the transoesophageal echocardiography using a transgastric view of the left ventricular outflow tract (LVOT) and the thermodilution (TD) technique for the assessment of CO during mean arterial pressure of 65–80 mmHg (normotension) and <65 mmHg (hypotension) in dogs undergoing elective surgery. Eight dogs were pre-medicated with acepromazine (0.05 mg/kg, IM), tramadol (4 mg/kg, IM) and atropine (0.03 mg/kg, IM), followed by anaesthetic induction with propofol (3–5 mg/kg IV) and maintenance with isoflurane associated with a continuous infusion rate of fentanyl (bolus of 3 μg/kg followed by 0.3 μg/kg/min). The CO was measured by TEE (COTEE) and TD (COTD) at the end of expiration during normotension and hypotension (induced by isoflurane). Results: There was a strong positive correlation between COTEE and COTD ​​(r = 0.925; P < 0.0001). The bias between COTD and COTEE was 0.14 ± 0.29 L/min (limits of agreement, −0.44 to 0.72 L/min). The percentage error of CO measured by the two methods was 12.32%. In addition, a strong positive correlation was found between COTEE and COTD during normotension (r = 0.995; P < 0.0001) and hypotension (r = 0.78; P = 0.0223). Conclusions: The results of this study indicated that the transgastric view of the LVOT by TEE was a minimally invasive alternative to clinically monitoring CO in dogs during anaesthesia. However, during hypotension, the CO obtained by TEE was less reliable, although still acceptable.
local.publisher.countryBrasil
local.publisher.departmentVET - DEPARTAMENTO DE CLÍNICA E CIRURGIA
local.publisher.initialsUFMG
local.url.externahttps://bmcvetres.biomedcentral.com/articles/10.1186/s12917-017-1227-9

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