Improved Pulmonary Adaptation in Newborn Calves with Postnatal Acidosis

Várga, J.; Mester, Lajos; Börzsönyi, L; Lekeux, Pierre; Szenci, O.

doi:10.1053/tvjl.2001.0589

Cited by 15 publications

(18 citation statements)

References 12 publications

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“…Furthermore, the current study demonstrated that a physiological combined respiratory and metabolic acidosis with the dominance of respiratory acidosis developed immediately after birth and the compensation of respiratory acidosis required more time until 24 hr after birth. These results are in good agreement with the findings of previous studies (Szenci et al., ; Uystepruyst et al., ; Varga et al., ). The compensation of neonatal respiratory and metabolic acidosis and the associated improvement in lung mechanics occur mainly during the first 6 hr of life in newborn calves (Varga et al., ).…”

Section: Discussionsupporting

confidence: 94%

“…These results are in good agreement with the findings of previous studies (Szenci et al., ; Uystepruyst et al., ; Varga et al., ). The compensation of neonatal respiratory and metabolic acidosis and the associated improvement in lung mechanics occur mainly during the first 6 hr of life in newborn calves (Varga et al., ). The delay in the improvement of blood gas parameters over time was attributed to the fact that the newborn calves included in this study had been delivered by an elective Caesarean section.…”

Section: Discussionsupporting

confidence: 94%

“…Pulmonary adaptation to extrauterine life in newborn calves is an important example of changes in cardiopulmonary physiology at birth, as it has a significant role in the rapid, smooth transition from a fluid‐filled foetal lung to an air‐breathing organ (Vannucchi et al., ; Varga, Mester, Börzsönyi, Lekeux, & Szenci, ). The compensation of neonatal respiratory and metabolic acidosis and the improvement in lung mechanics occur mainly during the first 6 hr of life in newborn calves (Varga et al., ).…”

Section: Introductionmentioning

confidence: 99%

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Radiographic assessment of pulmonary fluid clearance and lung aeration in newborn calves delivered by elective Caesarean section

Abdelmegeid

Kutasi

Nassiff

et al. 2017

Reprod Domestic Animals

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The aim of this study was to develop a radiographic standard for the assessment of pulmonary fluid clearance and lung aeration in newborn calves. Caesarean-delivered mature calves (n = 9) underwent lung assessment by thoracic radiography as well as arterial and venous blood gas analysis within the first 30 min, 1, 2, 3, 6, 12 and 24 hr after birth. The results indicated that newborn calves delivered by elective Caesarean section suffered from a physiological combined respiratory and metabolic acidosis with the dominance of respiratory acidosis, and an improvement in these conditions was recorded within 24 hr after birth. Concerning the radiographic results, clear lung fields, improvement in lung expansion, air content of the lung and absence of lung opacification occurred within 24 hr of birth. Furthermore, the ventral lung quadrant showed an improvement in radiographic opacification and lung expansion earlier than the dorsal lung regions. The findings of this study support the potential role of thoracic radiography in the assessment of pulmonary fluid clearance and lung aeration in newborn calves.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Radiographic assessment of pulmonary fluid clearance and lung aeration in newborn calves delivered by elective Caesarean section

Abdelmegeid

Kutasi

Nassiff

et al. 2017

Reprod Domestic Animals

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“…These results show rapid compensation of the acid-base imbalance imposed by calving and, consequently, the optimal prognostics for healthy calves born from eutocia. In fact, upon analyzing the pulmonary mechanic changes of calves, Varga et al (2001) observed diminished pulmonary resistance and pressure and an increase in pulmonary compliance during the first 6 h of life. Considering these data, we infer that the compensation for the physiological hypoxia at birth is due to pulmonary functional changes, thus increasing blood oxygenation in the first hours of life, especially during the first 2 h of life.…”

Section: Abmentioning

confidence: 99%

Oxidative stress and acid–base balance during the transition period of neonatal Holstein calves submitted to different calving times and obstetric assistance

Vannucchi

Silva

Lúcio

et al. 2019

Journal of Dairy Science

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“…Esta analogia encontra suporte nas observações feitas em bovinos (Aurich et al 1993) e ovinos (Padbury et al 1985, Padbury et al 1987, que, durante o parto e principalmente após o rompimento do cordão umbilical, ocorre ativação do sistema simpático adrenal, com aumento na liberação de catecolaminas na primeira hora de vida, influenciando no aumento das frequências cardíaca e respiratória, na capacidade da função pulmonar, na produção de surfactante e na diminuição da produção de fluido pulmonar. A reabsorção do líquido pulmonar das vias aéreas durante as primeiras 24 horas pós-parto dos bezerros também contribui para a progressiva alteração da mecânica pulmonar (Varga et al 2001).…”

Section: Discussionunclassified

Parâmetros hemogasométricos e equilíbrio ácido-básico de cabritos nascidos de partos normais

et al. 2012

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RESUMO.-A adaptação à vida extra-uterina é período críti-co para o recém-nascido. Inúmeras alterações ocorrem em diferentes sistemas e órgãos, incluindo a função respirató-ria e o equilíbrio ácido-básico. O presente trabalho objetivou constatar a ocorrência de acidose em cabritos recém--nascidos e obter parâmetros gasométricos e ácido-básicos dos mesmos, até as 24 horas de vida. Para tanto, foram utilizados 33 cabritos, sem distinção de sexo. Amostras san- The extra-uterine life adaptation is a critical period for the newborn. Several changes occur in different organ systems including respiratory function and acid-base balance. The aim of this study was to hypothesize the occurrence of acidosis in newborn kids and obtain blood gas and acid-base parameters of kids in the first 24 hours of life. For this, 33 goat kids of both sexes were used. The blood samples were collected by jugular venipuncture immediately after birth, 5, 10, 15 minutes and 24 hours of life. The blood pH, oxygen partial pressure (pO 2 ), carbon dioxide partial pressure (pCO 2 ), total carbon dioxide (TCO 2 ), bicarbonate concentration (HCO 3 ), base excess (BE) and oxygen saturation (SO 2 ) were determined with a portable blood gas analyzer. Significant differences were observed between the moments in all variables of the kids blood gas values. The newborn kids had respiratory acidosis during the immediate post-partum period, normalizing at 24 hours of life.INDEX TERMS: Blood gas, acid-base balance, acidosis, pH, newborn, goats. guíneas foram colhidas por venopunção jugular, imediatamente após o nascimento, aos cinco, dez e 15 minutos, e às 24 horas de vida, para determinação do pH, pressão parcial de oxigênio (pO 2 ), pressão parcial de dióxido de carbono (pCO 2 ), dióxido de carbono total (TCO 2 ), concentração de bicarbonato (HCO 3 ), excesso de bases (BE) e a saturação de oxigênio (sO 2 ) utilizando-se analisador portátil de gases sanguíneos. Observaram-se diferenças significativas entre os momentos nos valores gasométricos dos cabritos em todas as variáveis estudadas. Os cabritos recém-nascidos apresentaram acidose respiratória no período pós-parto imediato, normalizando-se às 24 horas de vida. TERMOS DE INDEXAÇÃO: Hemogasometria, equilíbrio ácido-bá-sico, acidose, pH, neonatos, caprinos. INTRODUÇÃOAs prevalências de mortalidade perinatal de caprinos são bastante variáveis. Estudos indicam perdas de 10-60% em sistemas extensivos de criação, e de 8-17% em criações intensivas. Os prejuízos decorrentes da mortalidade perinatal incluem a perda dos recursos investidos nas matrizes,

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Improved Pulmonary Adaptation in Newborn Calves with Postnatal Acidosis

Cited by 15 publications

References 12 publications

Radiographic assessment of pulmonary fluid clearance and lung aeration in newborn calves delivered by elective Caesarean section

Radiographic assessment of pulmonary fluid clearance and lung aeration in newborn calves delivered by elective Caesarean section

Oxidative stress and acid–base balance during the transition period of neonatal Holstein calves submitted to different calving times and obstetric assistance

Parâmetros hemogasométricos e equilíbrio ácido-básico de cabritos nascidos de partos normais

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