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General Anaesthesia with Intermittentpositive Pressure Ventilation Forthoracotomy in Cattle with Traumatic Pericarditis

KrishiKosh

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Title General Anaesthesia with Intermittentpositive Pressure Ventilation Forthoracotomy in Cattle with Traumatic Pericarditis
 
Creator Thangadurai, R.
 
Contributor Rajendran, N.
 
Description The study was conducted in 26 clinical cases of cows with traumaticpericarditis admitted to
Veterinary College and Research Institute Hospital, Namakkal from March 2010 to March 2012. The
animals were divided into four unequal groups viz. Group I, II, III and IV comprised of six, seven,
seven and six animals respectively based on the pregnancy status. Non pregnant animals were
selected for group I The anaesthetic protocol was formulated with xylazine hydrochloride, diazepam,
midazolam, acepromazine maleate, guaifenesin and ketamine hydrochloride. The anaesthesia was
maintained with isoflurane. The rectal temperature of animals in group IV was significantly lower
compared to other groups during maintenance of anaesthesia which returned to baseline value after
recovery. A significant reduction in heart rate was observed in group I and IV animals during
maintenance of anaesthesia which returned to baseline value after recovery. Significant reduction in
respiratory rate was observed after induction in all the animals which returned to baseline value
after recovery. Mechanical ventilation was employed throughout the surgical procedure with
standard settings. The saturation of peripheral oxygen (SPO2) and end-tidal carbon dioxide (ETCO2)
levels were maintained within the physiological limits. In group IV there was a highly significant
reduction in mean arterial pressure (MAP) during maintenance of anaesthesia and after recovery.
The electrocardiography revealed ST segment prolongation and elevation of about 0.3 to 0.4 mV in
all the animals with traumatic pericarditis compared to healthy cattle. A significant reduction in
haemoglobin and total erythrocyte count was noticed after induction and during maintenance of
anaesthesia in all the animals.
A highly significant reduction of packed cell volume after induction and during maintenance
in all the groups was observed. A highly significant increase in serum cortisol was observed after
recovery in all the groups. The total leucocyte count, differential cell count, serum level of glucose,
total protein, creatinine, serum urea, aspartate amino transferase, serum calcium, and serum
potassium had no significant difference at different stages of anaesthesia in group II, III and IV and
between the groups. The induction time for group I, II, III and IV were 1.83?0.17, 1.64?0.09, and
1.71?0.09 and 1.95?0.21 min, respectively. The extubation time for group I, II, III and IV were
8.63?0.22, 7.47?0.14, 7.43?0.17 and 7.58?0.24 min, respectively. Time for sternal recumbency for
group I, II, III and IV were 45.00?1.83, 28.57?2.10, 26.43?1.43 and 36.67?1.05 min, respectively.
Time for unassisted standing of group I, II, III and IV were 57.50?2.14, 37.86?1.49, and 38.57?1.43
and 49.17?1.54 min, respectively. The anaesthetic complications like salivation, ruminal tympany
and regurgitation were encountered in group I, III and IV. However, ruminal tympany and
regurgitation were not encountered in any of the animals of group II and the quality of anaesthesia
was graded as excellent indicating that the anaesthetic protocol employed in group II was superior
to others. Diazepam as a preanaesthetic agent along with guaifenesin ? ketamine hydrochloride
induction and isoflurane maintenance was found superior to perform thoracotomy in cattle with
traumatic pericarditis.
 
Date 2016-07-26T14:52:55Z
2016-07-26T14:52:55Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69939
 
Language en
 
Format application/pdf
 
Publisher Tamil Nadu Veterinary and Animal Sciences University