Peer-reviewed veterinary case report
Critical ischemia time after spinal cord injury in dogs
By Bitar Alatorre, Wadih Emilio et al.·Published in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2007·Instituto Mexicano del Seguro Social·View original on PubMed →
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Original publication title: Critical ischemia time in a model of spinal cord section. A study performed on dogs.
- Species:
- dog
Plain-English summary
A group of dogs underwent surgery after suffering spinal cord injuries to see how long they could go without blood flow before recovery became impossible. The researchers found that if blood flow was cut off for more than 3 hours, the dogs had little to no chance of recovering normal function. Dogs that had 1 or 2 hours of restricted blood flow showed some recovery, while those with 4 hours did not recover at all. This study highlights the importance of quick medical intervention for spinal injuries in dogs to improve their chances of regaining mobility.
People also search for: dog spinal cord injury recovery · dog paralysis treatment · how long can a dog survive without blood flow
Abstract
Vascular changes after acute spinal cord trauma are important factors that predispose quadriplegia, in most cases irreversible. Repair of the spinal blood flow helps the spinal cord recovery. The average time to arrive and perform surgery is 3 h in most cases. It is important to determine the critical ischemia time in order to offer better functional prognosis. A spinal cord section and vascular clamping of the spinal anterior artery at C5-C6 model was used to determine critical ischemia time. The objective was to establish a critical ischemia time in a model of acute spinal cord section. Four groups of dogs were used, anterior approach and vascular clamp of spinal anterior artery with 1, 2, 3, and 4 h of ischemia and posterior hemisection of spinal cord at C5-C6 was performed. Clinical evaluation was made during 12 weeks and morphological evaluation at the end of this period. We obtained a maximal neurological coordination at 23 days average. Two cases showed sequels of right upper limb paresis at 1 and 3 ischemia hours. There was nerve conduction delay of 56% at 3 h of ischemia. Morphological examination showed 25% of damaged area. The VIII and IX Rexed's laminae were the most affected. The critical ischemia time was 3 h. Dogs with 4 h did not exhibit any recovery.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17024402/