Efeitos do jejum alimentar pré-cirúrgico sobre a glicemia e o período de recuperação anestésica em cães

Nogueira, Lílian Cotrim; Cortopassi, Silvia Renata Gaído; Intelizano, Tatiana Regina; Souza, Mirian Siliane Batista de

doi:10.1590/s1413-95962003000700003

Cited by 9 publications

(13 citation statements)

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“…This difference can be attributed to individual variability. Therefore, in halothaneanesthetized dogs maintained in different preoperative fast times, the relationship between anesthesia recovery and glycemia level was not observed (Nogueira et al, 2003), corroborating this study.…”

Section: Discussionsupporting

confidence: 85%

“…Conversely, in dogs maintained in different preoperative fasting periods (6 to 8 hours, 12 to 14 hours, more than 16 hours) and anesthetized with halothane, no differences were observed among the three starvation times considering the glycemia value before and after anesthesia (Nogueira et al, 2003).…”

Section: Introductionmentioning

confidence: 85%

“…Hypoglycemia might occur during general anesthesia but is most common as a nonspecific hormonal response to the stress of anesthesia and operation (Haskins, 2007). However, in anesthetized animals, there may be no outward sign (Pascoe, 2006). According to Kaneko et al (1997), for cats, the normal glucose values are between 73 and 134 mg/dL (4.10 and 7.44 mmol/L).…”

Section: Discussionmentioning

confidence: 99%

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Different fasting periods in tiletamine-zolezepam-anethetized cats: Glycemia, recovery, blood-gas and cardiorrespiratory parameters

Gering¹,

Nunes²,

Oliveira³

et al. 2013

Arq. Bras. Med. Vet. Zootec.

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Different fasting periods in tiletamine- ABSTRACTThe effects of different fasting periods on glycemia levels and on cardiorrespiratory parameters in tiletaminezolazepam-anesthetized cats were evaluated. Twenty one animals were randomly assigned to three groups: 8 hours (G8), 12 hours (G12) or 18 hours (G18) of the preoperative fasting. The tiletamine-zolazepam (2 mg/kg) was administered intravenously. The heart rate (HR), respiratory rate (f R ), rectal temperature (T R ), glycemia (G), laboratorial glycemia (G lab ), venous oxygen partial pressure (PvO 2 ), venous carbon dioxide partial pressure (PvCO 2 ), venous hemoglobin saturation (SvO 2 ), pH, base deficit (BD), bicarbonate concentration (HCO 3 -) and haematocrit were evaluated at 90 minutes after the last meal (T0), immediately before anesthesia (T1) and at ten (T2) and thirty (T3) minutes after tiletamine-zolezepam administration. The time between the administration of anesthetic and the cat's trial to elevate head (Th) and the interval between drug administration and aniamal's quadrupedal position (Tqp) were recorded. No differences among groups were recorded for glycemia, HR, PvO 2 , SvO 2 , pH, BD, HCO 3 -, Ht and Tqp. In G12 from T2, glycemia increased and from T1 PvCO 2 decreased. At T1, PvO 2 increased in all groups. In G8 and G12, from T1, DB and HCO 3 -decreased. In G12 and G18, from T2, Ht decreased. In G12, the Th mean was higher than G8. In conclusion, in tiletaminezolazepam-anesthetized cats, the different preoperative fasting did not influence glycemia, blood-gas and cardiorrespiratory parameters. Additionally, there was no relationship between glycemia and anesthesia recovery.

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Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

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Different fasting periods in tiletamine-zolezepam-anethetized cats: Glycemia, recovery, blood-gas and cardiorrespiratory parameters

Gering¹,

Nunes²,

Oliveira³

et al. 2013

Arq. Bras. Med. Vet. Zootec.

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“…Em alguns estudos realizados, a glicemia não apresentou diferenças significativas frente a diferentes períodos de jejum pré-anestésico preconizados. 4,5 Em crianças, o jejum prolongado (8-12 horas) foi associado a notáveis diminuições da pressão sangüínea arterial durante anestesia com halotano. 6 Pickrell et al 7 comprovaram que, em cães, quanto maior o período de jejum, menores são os valores de pH, PaCO 2 e BE, considerando a ocorrência de acidose moderada de origem metabólica.…”

Section: Introductionunclassified

Correlação de diferentes períodos de jejum com níveis séricos de cortisol, glicemia plasmática, estado clínico e equilíbrio ácido-base em cães submetidos à anestesia geral inalatória

Guimarães

Oliva

Maia

et al. 2007

Braz. J. Vet. Res. Anim. Sci.

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Este estudo correlacionou os tempos de jejum sólido pré-anestésico com alterações nos níveis de glicemia plasmática, cortisol sérico, estado clínico e equilíbrio ácido-base em cães submetidos a anestesia geral inalatória. Utilizaram-se oito animais, adultos, sem raça definida, distribuídos de acordo com o período de jejum sólido: Grupo 1 (12 horas), Grupo 2 (18 horas) e Grupo 3 (24 horas). Foi acompanhado o esvaziamento do conteúdo gástrico e em seguida, todos animais foram submetidos ao mesmo procedimento anestésico. Freqüência cardíaca e respiratória, temperatura retal, tempo de reperfusão capilar, grau de hidratação e pressão arterial não-invasiva foram mensurados previamente à administração de acepromazina, 10 minutos decorridos da mesma e a cada 10 minutos durante a manutenção anestésica, incluindo-se ETCO2; valores hemogasométricos (pH, PaCO2, PaO2, HCO3, CO2 total, SatO2, déficit de base), glicêmicos e de cortisol sérico foram avaliados previamente à MPA e a cada trinta minutos durante a manutenção anestésica. No período de recuperação anestésica, novas dosagens glicêmicas e de cortisol foram realizadas. Constataram-se poucas alterações cardiocirculatórias e respiratórias durante a anestesia, não havendo interferência dos diferentes tempos de jejum. Os animais com 12 horas de jejum pré-anestésico apresentaram glicemia mais elevada do que os demais grupos, no período de recuperação anestésica. As concentrações de cortisol não foram afetadas pelo jejum. O jejum pré-anestésico sólido, independente do tempo de duração, caracterizou um quadro de discreta alcalose respiratória. Todos os animais apresentaram-se em bom estado clínico nos três grupos. Recomenda-se jejum pré-anestésico sólido de 18 horas para garantir ausência completa de conteúdo alimentar sólido no estômago.

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“…Hypoglycemic animals may have depression, prolonged anesthetic recovery, weakness, muscle tremors, changes in blood pressure, behavioral changes and seizures [4,8]. In anesthetized animals, there is no evident clinical signs of hypoglycemia, and this can only be diagnosed by blood glucose measurements [28]. Fasting induces low levels of plasma glucose, mobilizes liver's glycogen stores and reduces circulation of fatty acids, which can change biotransformation rate of drugs [34].…”

Section: Discussionmentioning

confidence: 99%

Determining the Optimal Time of Gastric Emptying in Cats Using Dry or Wet Food

Castro

Santalucia

Ferreira

et al. 2016

Acta Scientiae. Vet.

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Background: Pulmonary aspiration of gastric content can result in intraoperative and postoperative complications, such as regurgitation, gastro-esophageal reflux and esophagitis. There are variations among authors about the ideal period of solid and liquid fasting. Determination of the appropriate amount of food abstinence in surgical patients is important, because of the metabolic disorders that interfere in response to anesthetic protocol or surgical intervention. Thereby, this research aimed to evaluate the appropriate period of fasting for elective anesthesia and surgical procedures in cats, by analysis of gastric emptying time based on the daily energy requirement.Materials, Methods & Results: Seven cats of mixed breed, health and with an average weight of 2.857 ± 0.3780 were evaluated by gastroscopy for the presence of food and obtaining tissue samples. To evaluate the gastric emptying time, dry and moist food were offered at two different times, 8 h and 4 h before each evaluation, with an interval of seven days between each food treatment (dry and moist). There was no significant difference in all biochemical parameters evaluated (cholesterol, glucose, and lactate) in both fasting times and food types (P > 0.05). All animals underwent gastric biopsy for histological evaluation and urease test, to discard morphological changes. After 4 h it was observed dry food in all cat’s stomach, however just five cats presented food in their stomach after eight hours. In other hand all the animals, which ate moist food, did not present any gastric content after four hours and eight hours of feeding. Gastric mucosa were considered normal in all cats with moderate amount of Helicobacter sp.Discussion: The difficulty of a consensus on the fast time in cats, and the great variability of the emptying time according to the feeding type, makes this study useful as basis for future studies on fasting with wet food, as well as providing immediate clinical application in surgical routine. Only a moderate gastritis related to helicobacter sp. was detected, but even healthy animals can carry Helicobacter sp. Four h of fasting time if feed the patient with 80% humidity ration improve anesthetic security of the patient with typical biochemical values. As shown, the appropriate preoperative fasting directly implies on decrease in the number of complications related to full stomach. Thus, always should take into account the possibility to perform fast in an appropriate period to prevent vomiting and aspiration, without the risk of hypoglycemia benefiting the patient and reassuring the anesthesiologist, especially in situations requiring urgent or emergency intervention. As observed through endoscopy, even eight hours of fasting with dry feed is inappropriate due to significant gastric volume of food in almost all cats. This suggests that prolonged preoperative fasting is no guarantee of low stomach volume. Wet feed can be an option for elderly and debilitated patients requiring surgical intervention within a short period of fasting. The time varies with type and volume of food that is variable according patients and different species and digestive conditions. The research were conducted with none complications. By means, this experiment it was concluded that the fasting time of 4 h with 80% humidity moist food allows complete gastric emptying without any complication.

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Efeitos do jejum alimentar pré-cirúrgico sobre a glicemia e o período de recuperação anestésica em cães

Cited by 9 publications

References 0 publications

Different fasting periods in tiletamine-zolezepam-anethetized cats: Glycemia, recovery, blood-gas and cardiorrespiratory parameters

Different fasting periods in tiletamine-zolezepam-anethetized cats: Glycemia, recovery, blood-gas and cardiorrespiratory parameters

Correlação de diferentes períodos de jejum com níveis séricos de cortisol, glicemia plasmática, estado clínico e equilíbrio ácido-base em cães submetidos à anestesia geral inalatória

Determining the Optimal Time of Gastric Emptying in Cats Using Dry or Wet Food

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