Standard electrocardiographic values in Holstein calves

RESUMO.-[Avaliação do eletrocardiograma utilizando os sistemas Einthoven e base-ápice em vacas e neonatos saudáveis da raça Holandesa.] Tem como objetivo descrever o comportamento eletrocardiográfico de parâ-metros em vacas da raça Holandesa grávidas e recém-nascidos durante o período perinatal. Os eletrocardiogramas foram realizados utilizando um eletrocardiógrafo computadorizado. Os animais selecionados para o estudo foram 23 vacas e 18 neonatos. Exames eletrocardiográficos maternos foram realizadas em 35, 28, 21, 14, 7 dias e um dia de pré-parto e nos neonatos foram avaliados em seis momentos; no momento do nascimento, 7, 14, 21, 28 e 35 dias após o parto. As avaliações foram realizadas em vacas pré e pós-parto e no grupo de neonatos entre fêmeas e machos. Para cada duração da gravação eletrocardiográfica anali- The objective aimed to describe the electrocardiographic behavior of parameters in Holstein pregnant cows and neonates during the perinatal period. The electrocardiograms were performed using a computerized electrocardiogram. The animals selected for the study were 23 cows and 18 neonates. Maternal electrocardiographic examinations were conducted in the 35, 28, 21, 14, 7 days and one-day pre -partum and the neonates were evaluated in six moments; at the time of birth, 7, 14, 21, 28 and 35 days after delivery. The evaluations were done in pre and post-delivery cows and into the group of neonates between female and male. For each electrocardiographic recording P-wave duration and amplitude, PR interval and the QRS complex duration, R, S-wave amplitude and polarity, QT and RR interval duration were examined. Changes in heart rate, ST segment and T wave polarity were recorded in leads of Einthoven and base-apex planes. The mean electrical axis of the QRS complex was calculated. In cows the results when comparing the two leads system, there are significant changes in the amplitude of the waves P, R, S, and T and the duration of the intervals PR, ST and QRS complex. The difference between primiparous and multiparous dairy cows was in the amplitude of the Twave. It was concluded that the base-apex system is a suitable lead for monitoring heart rhythm in Holstein cows and Einthoven in neonates. During the first month of life, no differences in P, Q, S and T waves, in PR, QRS, and ST intervals and in axis orientation was observed in neonates. There was a significant difference in duration of the QT interval. Among sexes, the difference was in the Q amplitude. This study incorporated the calves and Holstein cows in a single study in search of baseline information regarding the duration and morphology of the ECG parameters. In conclusion, it was proved that, with increasing age, there are changes in ECG components associated with variations in the distance between the recording electrode and the heart. The study contributes by providing Holstein reference values for clinical evaluations.

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“…The values for electrocardiographic parameters in neonates are similar to those reported by Amory et al (1993) and Mendes et al (2001).…”

Section: Discussionsupporting

confidence: 90%

Electrocardiogram assessment using the Einthoven and base-apex lead systems in healthy Holstein cows and neonates

et al. 2016

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“…This calf showed sinus tachycardia (200 heart beats per min) on electrocardiography using the standard bipolar limb lead-II. The electrocardiographic values in the remaining cases were within normal limits (Mendes et al, 2001). Routine hematological and serum biochemical values were within normal limits (Benjamin, 1998) in all the cases.…”

Section: Methodsmentioning

confidence: 74%

Congenital omphalocele in four calves, their surgical management and outcome

Fazili

Dar

Bhattacharyya

et al. 2016

IJAR

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Four newborn dairy calves with omphalocele including one additionally with atresia ani and anury were presented for treatment. The mass (diameter: 12.0 and 23.0cm respectively) in two calves was covered by continuation of the umbilical cord. In the remaining two calves the covering had disrupted and the intestines were hanging from the umbilicus. Herniorrhaphy was performed under sedation using diazepam and local infiltration analgesia with lignocaine hydrochloride (2%). In the calf with atresia ani, anal opening was created under caudal epidural block. Three of the calves recovered completely and the remaining one died. It was concluded that the surgical treatment of calves with omphalocele have good prognosis provided they are presented promptly without mutilation of the mass.

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“…Según Ferasin et al, 2005 la frecuencia cardiaca en alpacas adultas y saludables tiene un rango entre 50 y 110 latidos/minuto con una media de 80, con lo cual observamos que los valores en las crías de alpaca son más elevados. En otros camelidos como las llamas sucede un fenómeno similar, pues los adultos tienen un frecuencia de 80 y las crías de 120 (Hoffman, 2006), por otra parte en animales filogéticamente cercanos a los camélidos sudamericanos como los camellos dromedarios jovenes la frecuencia cardiaca tuvo un valor promedio de 60 latidos por minuto (Lapiccirella y Abboni, 1961); mientras que en terneros holstein de 27-31 días de edad el valor promedio fue de 112 latidos por minuto (Mendes et al, 2001). En otros mamíferos sucede un asunto similar lo que se explica porque los mamíferos pequeños requieren una mayor cantiudad de oxígeno por gramo de peso corporal que los animales de mayor tamaño, pero el corazón de éstos no es mayor en relación con el peso corporal que el de los mamíferos grandes, por lo tanto el corazón de los mamiferos más pequeños debe latir con mayor rápidez que el de los de mayor tamaño para que el oxígeno se oferte con una mayor velocidad por unidad de peso corporal (Seymour y Blaylock, 2000).…”

Section: Discussionunclassified

Estudio electrocardiografía en estación y de cúbito lateral derecho en crías de alpaca (Vicugna pacos)

Dávila¹,

Lira²,

Navarrete³

et al. 2014

Revista Complutense De Ciencias Veterinarias

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El presente estudio tuvo por objetivo determinar los parámetros electrocardiográficos en las posiciones estación y decúbito lateral derecha en crías de alpacas. El trabajo se hizo en 30 alpacas (17 machos y 13 hembras) menores de 60 días de edad, provenientes de las comunidades alpaqueras de Maranganí, Canchis, en Cusco. Los valores electrocardiográficos en estación y en decúbito lateral derecho fueron: Frecuencia cardiaca 124.83 y 114.16, Duración

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Standard electrocardiographic values in Holstein calves

Cited by 9 publications

References 4 publications

Electrocardiogram assessment using the Einthoven and base-apex lead systems in healthy Holstein cows and neonates

Electrocardiogram assessment using the Einthoven and base-apex lead systems in healthy Holstein cows and neonates

Congenital omphalocele in four calves, their surgical management and outcome

Estudio electrocardiografía en estación y de cúbito lateral derecho en crías de alpaca (Vicugna pacos)

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