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Discussion on Ethyl Chloride and Help with Difficult Injections | |
Author | Message |
Moderator: DrO |
Posted on Wednesday, Dec 13, 2006 - 10:47 am: Intraarticular injections can be difficult in some horses who react to the pain of the needle. Ethyl chloride is a topical spray that has temporary anesthetic properties due to its cooling properties. In this study it was also found to have antibacterial action making it doubly helpful with these injections. If your horse is difficult to inject recommend this to your vet as this is not a widely practiced technique.DrO Clin Radiol. 2006 Dec;61(12):1055-7. Topical ethyl chloride fine spray. Does it have any antimicrobial activity? Burney K, Bowker K, Reynolds R, Bradley M. Departments of Clinical Radiology. AIM: The aim of this study was to assess whether ethyl chloride fine spray (Cryogesic((R))) has antimicrobial activity. MATERIAL AND METHODS: Blood agar plates supplemented with 5% horse blood were inoculated with five different organisms, coagulase-negative staphylococci (CNS), methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), Streptococcus pyogenes and Enterococcus faecalis. The plates were assessed for growth inhibition at 24 and 48h by the microbiologist and compared with the non-sprayed control plates. RESULTS: The model showed a highly significant (p<0.0001) reduction in bacterial count for the plates treated with fine ethyl chloride spray. The estimate of the percentage of bacteria remaining after spraying with ethyl chloride was 42.7%, with a 95% confidence interval of 35.9-50.9%. There was no evidence that the effect of ethyl chloride fine spray was different for the different organisms (p=0.49). CONCLUSION: The use of ethyl chloride shows bacterial count reduction but the clinical implication of this needs to be determined. The authors postulate that any statistically significant reduction can only be helpful in reducing the infection rates. This coupled with the already proven local anaesthetic effects of ethyl chloride will make it an important tool for procedures like arthrocentesis and venepunctures. |
Member: Ilona |
Posted on Thursday, Dec 14, 2006 - 11:12 pm: Thanx Dr O,BoomBoom is going to be ever grateful. I whinny a snort of thanx on his behalf |