Estudo clínico e cardiorrespiratório em cadelas gestantes com parto normal ou submetidas à cesariana sob anestesia inalatória com sevofluorano

Gabas, Daniela Tozadore; Oliva, Valéria Nobre Leal de Souza; Matsuba, L. M.; Perri, Sílvia Helena Venturoli

doi:10.1590/s0102-09352006000400011

Cited by 5 publications

(4 citation statements)

References 7 publications

(5 reference statements)

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“…26 The electrolytic variables were not influenced by the parturition type or time point evaluated, but TCO 2 concentrations were higher in M2 in both groups. These findings are contrary to those observed by Gabas et al, 16 which found no increase in TCO 2 in bitches postcesarean section. Our findings were expected owing to decreasing arterial blood pH and decreased respiratory rate during pregnancy.…”

Section: Discussioncontrasting

confidence: 99%

“…The increased HR during parturition in the eutocia group has been mentioned by Gabas et al 16 In our study, the HR values in eutocia or dystocia were above the normal range for the species. These results can be explained by adaptive changes during pregnancy in the cardiovascular system, increased uterine perfusion, and increased cardiac output and blood volume, which are related to the synthesis and secretion of thyroid hormones.…”

Section: Discussionsupporting

confidence: 72%

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Hormonal, Electrolytic, and Electrocardiographic Evaluations in Bitches With Eutocia and Dystocia

Simões

Vassalo

Lourenço

et al. 2016

Topics in Companion Animal Medicine

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The objective of the study was to assess clinical alterations, electrocardiographic, hematological, biochemical, hemogasometric, electrolytic, and hormone plasma concentrations in bitches with eutocia and dystocia. Overall, 28 bitches (dystocia, n = 22 and eutocia, n = 6) were assessed. The evaluations were performed at 2 time points, M1 (1 hour prepartum-eutocia group and cesarean or clinical intervention-dystocia group) and M2 (postpartum-eutocia or dystocia group and anesthetic recovery-dystocia group). The main clinical finding was the hypothermia (mean: 36.9°C dystocia vs. 36.8°C eutocia). Sinus arrhythmia and tachycardia were the electrocardiographic parameters predominant in eutocia and sinus rhythm in dystocia group. The P wave amplitude, heart rate, creatinine concentration, hematocrit, and hemoglobin were increased in M1 (P < .05), whereas the concentration of TCO was higher in M2. There was an increase in P concentration in dystocia and total T concentrations were increased in M1 in both groups. Total T was higher in dystocia during M1 and in dystocia during M2 in eutocia than in dystocia. We concluded that at 1 hour prepartum or pre-cesarean, there is an increase in heart rate in bitches with eutocia or dystocia, and this finding was correlated to thyroid hormone concentration. P concentrations remained high during dystocia, and hematological and biochemical changes returned to normal after parturition. The evaluation of these parameters in pregnancy can be used as tool to prevent dystocia and consequent fetal death.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 72%

Hormonal, Electrolytic, and Electrocardiographic Evaluations in Bitches With Eutocia and Dystocia

Simões

Vassalo

Lourenço

et al. 2016

Topics in Companion Animal Medicine

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“…Pharmacological management of analgesia at delivery (whelping) in bitches is only performed in the case of caesarean section (CS). The CS anaesthetic protocol model should produce good muscle relaxation, analgesia, and narcosis for optimal and secure surgical conditions for the bitch [170,171] and should not harm the vitality and survival of newborns [171,172]. The two classes of analgesics commonly used in veterinary patients are opioids and the nonsteroidal anti-inflammatory analgesics (NSAIDs) [163], despite analgesics and NSAIDs being problematic for CS in pregnant animals and humans [173,174].…”

Section: Managing Labour Painmentioning

confidence: 99%

Parturition in Mammals: Animal Models, Pain and Distress

Martı́nez-Burnes

Muns

Barrios-García

et al. 2021

Animals

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Parturition is a complex physiological process and involves many hormonal, morphological, physiological, and behavioural changes. Labour is a crucial moment for numerous species and is usually the most painful experience in females. Contrary to the extensive research in humans, there are limited pain studies associated with the birth process in domestic animals. Nonetheless, awareness of parturition has increased among the public, owners, and the scientific community during recent years. Dystocia is a significant factor that increases the level of parturition pain. It is considered less common in polytocous species because newborns’ number and small size might lead to the belief that the parturition process is less painful than in monotocous animal species and humans. This review aims to provide elements of the current knowledge about human labour pain (monotocous species), the relevant contribution of the rat model to human labour pain, and the current clinical and experimental knowledge of parturition pain mechanisms in domestic animals that support the fact that domestic polytocous species also experience pain. Moreover, both for women and domestic animal species, parturition’s pain represents a potential welfare concern, and information on pain indicators and the appropriate analgesic therapy are discussed.

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“…Segundo Ebert (1996) e Hettrick et al (1996), o sevofluorano parece não estar associado ao aumento da freqüência cardíaca quando utilizado em diferentes concentrações em relação a outros agentes anestésicos inalatórios. Gabas et al (2006) verificaram redução da freqüência cardíaca em cadelas anestesiadas com sevofluorano. Bernard et al (1990); Lowe et al (1996) e Mutoh et al (1997) observaram aumento da freqüência cardíaca basal de 30 a 40%, em cães, durante a administração de 1,2 a 2,0CAM de sevofluorano.…”

Section: Introductionunclassified

Efeito da dexmedetomidina sobre a arritmia cardíaca induzida pela adrenalina em cães anestesiados pelo sevofluorano

Barbosa

Nunes

Conceição

et al. 2007

Arq. Bras. Med. Vet. Zootec.

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Efeito da dexmedetomidina sobre a arritmia cardíaca induzida pela adrenalina em cães anestesiados pelo sevofluorano No grupo placebo, os animais receberam, por via intravenosa, solução de NaCl a 0,9%, na dose de 0,3ml/kg. Foram considerados dois momentos, M0 e M1, imediatamente antes e após a aplicação, respectivamente. Após 10 minutos, realizou-se a indução anestésica com sevofluorano, por meio de máscara facial vedada, até a perda do reflexo laringotraqueal. Em seguida, procedeu-se à intubação orotraqueal e a manutenção da anestesia foi realizada com a administração de sevofluorano na concentração de 1,5CAM, em circuito anestésico com reinalação parcial de gases. Decorridos 20 minutos da indução anestésica, iniciou-se a administração intravenosa contínua de solução de adrenalina a 2% em doses crescentes de 1, 2, 3, 4 e 5µg/kg/min, por meio de bomba de infusão, com aumento da dose em intervalos de 10 minutos. Imediatamente antes desse acréscimo eram feitas as mensurações (M2 a M6).No grupo dexmedetomidina empregou-se a mesma metodologia substituindo-se a solução de NaCl a 0,9% por hidrocloridrato de dexmedetomidina, na dose de 1µg/kg. Foram registradas as pressões arteriais, em M0 e em M2 a M6, e o traçado eletrocardiográfico, na derivação DII (M2 a M6), considerando-se para efeito estatístico o número total de bloqueios atrioventriculares (BAV) de primeiro e segundo graus e de complexos ventriculares prematuros (ESV), coincidentes com cada dose de adrenalina. Os dados foram submetidos à análise de variância seguida pelo teste de Tukey (P<0,05). Verificou-se que a dexmedetomidina interfere significativamente na condução atrioventricular levando a maior ocorrência de BAV e reduz o número de ESV nas doses infundidas de 2 e 3µg/kg/min de adrenalina. Logo após a aplicação de dexmedetomidina, observaram-se redução da freqüência cardíaca e da pressão arterial, cuja diminuição persistiu por até uma hora.Palavras-chave: cão, alfa-2 agonistas, ritmo cardíaco, anestesia inalatória ABSTRACT

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Estudo clínico e cardiorrespiratório em cadelas gestantes com parto normal ou submetidas à cesariana sob anestesia inalatória com sevofluorano

Cited by 5 publications

References 7 publications

Hormonal, Electrolytic, and Electrocardiographic Evaluations in Bitches With Eutocia and Dystocia

Hormonal, Electrolytic, and Electrocardiographic Evaluations in Bitches With Eutocia and Dystocia

Parturition in Mammals: Animal Models, Pain and Distress

Efeito da dexmedetomidina sobre a arritmia cardíaca induzida pela adrenalina em cães anestesiados pelo sevofluorano

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