PERBEDAAN EFEK VARIASI DOSIS PAPARAN ARUS LISTRIK SECARA LANGSUNG TERHADAP GAMBARAN HISTOPATOLOGIK OTOT GASTROCNEMIUS POINT OF CONTACT LISTRIK DENGAN OTOT GASTROCNEMIUS EKSTREMITAS BAGIAN HOMOLATERAL TIKUS WISTAR

Abstract

Background: Electric current both through direct contact are assumed to cause hypercontraction on gastrocnemius muscles of Wistar mice. The aim of this research is to easier identifying the victims of electrical injury with muscle as the sampel. Method: 30 wistar rats were divided into 5 groups through simple random sampling. Group 1-4 received electric current through direct contact. Group 1 and 4 received (P1) 1-30 mA, (P2) 31-60 mA, (P2) 61-90 mA, and (P3) 91-120 mA of electric current respectively. Group 5 (P5) was received no treatment. Mice were then decapitated in order to assess the amount of hypercontraction on gastrocnemius muscle. Statistical analysis was conducted by indepedent sampel test. Result: Mean score hypercontraction gastrocnemius muscle significant (p<0,05). Mean score hypercontraction group P1 smallest, that is 110,2±55,45. Mean score hipercontraction group P4 largest, that is 374,7±120,03. There was significant differences histopatologic appearences of the gastrocnemius muscle point of contact electrical with homolateral part of gastrocnemius muscle’s Wistar mice between group PI (0,025), P4 (0,017). Conclusion: Found differences effect of the electric pathway with the variation doses to the histopatologic appearences of the gastrocnemius muscle point of contact electrical with homolateral part of gastrocnemius muscle’s Wistar mice. Keywords: electric current, direct contact, gastrocnemius muscle, hypercontraction.