Primatika, Aria Dian (2006) PENGARUH INFILTRASI ANESTETIK LOKAL LEVOBUPIVAKAIN TERHADAP SKOR HISTOLOGI MHC KELAS I PADA PENYEMBUHAN LUKA THE INFLUENCE LEVOBUPIVACAINE INFILTRATION OF CLASS I MHC HISTOLOGIC SCORE ON WOUND HEALING. Masters thesis, program Pascasarjana Universitas Diponegoro.
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Abstract
Latar belakang : Nyeri akut pasca pembedahan memicu timbulnya gejala klinis patofisiologis, menekan respons imun, sehingga menyebabkan penurunan sistem imun yang akan menghambat penyembuhan luka. Levobupivakain, anestetik lokal durasi panjang yang efektif mengurangi nyeri akut. MHC kelas I sebagai petanda permukaan sel yang terinfeksi memberi sinyal pada sel T sitotoksik sehingga fungsinya dalam respons imun sangat penting. Kemampuan limfosit T sitotoksik untuk melisiskan sel merupakan fungsi langsung dari banyaknya MHC kelas I yang diekspresikan. Tujuan : Membuktikan pengaruh infiltrasi anestetik lokal levobupivakain terhadap ekspresi MHC kelas I. Metode : Dilakukan penelitian eksperimental pada hewan coba, randomized post test only control group design, menggunakan tikus Wistar. Sampel 15 ekor dibagi menjadi 3 kelompok; kelompok I kontrol, kelompok II insisi subkutis tanpa infiltrasi levobupivakain, kelompok III insisi subkutis dan infiltrasi levobupivakain dosis 12,6 mcg/gram BB setiap 8 jam selama 24 jam. Ekspresi MHC kelas I pada sekitar luka insisi dinilai dengan skor histologi dengan menggunakan pengecatan secara imunohistokimia. Biopsi jaringan diambil pada hari kelima karena pada penyembuhan luka normal jumlah limfosit T bermakna pada hari kelima dan mencapai puncak pada hari ketujuh. Data dianalisis dengan uji beda Kruskal-Wallis. Hasil : Penelitian menunjukan pada kelompok kontrol terdapat ekspresi MHC kelas I dengan hasil rerata skor histologi 4,92. Hasil rerata skor histologi MHC kelas I pada kelompok levobupivakain lebih rendah (8,12) dibanding kelompok tanpa levobupivakain (5,26) dan secara statistik berbeda bermakna (p=0,011). Simpulan : Ekspresi MHC kelas I (skor histologi MHC I) pada kelompok dengan infiltrasi levobupivakain lebih rendah dibandingkan dengan kelompok tanpa infiltrasi levobupivakain. Background : Post operative acute pain stimulates clinical pathofisiologic symptoms, suppreses immune respons, reduces the activity of the immune system and inhibits wound healing. Levobupivacaine is a long acting local anaesthetic, suitable for pain control. Presenting class I MHC antigens to cytotoxic T lymphocytes, this is important to response immune. The ability of cytotoxic T lymphocytes to kill infected target cells depends on the amount of class I MHC expression. Objective : To prove the influence of levobupivacaine infiltration on class I MHC expression. Methods : This study was an animal experimental study with randomized post test only control group design. Randomly 15 Wistar rats were divided into 3 groups. Group I was the group for control without treatment. Group II, rats that got incisions without levobupivacaine infiltration. Group III, rats that got incisions and levobupivacaine infiltration dosed 12.6 mcg/gram BW every 8th hours for 24 hours. The expression class I MHC cell around wound incision was analized with histologic score from samples with immunohistochemistry stainning. Samples were taken from tissue biopsy on 5th day because in normal wound healing the amount of lymphocytes T were significant at 5th day and the peak at 7th day. Data were analyzed using Kruskal-Wallis test. Results : This study showed that control group have the expression of class I MHC with histologic scor mean 4.92. The incission tissue with levobupivacaine has lower class I MHC histologic score (mean value 5,26) than group without levobupivakain (mean value 8,12). There was a significant difference of class I MHC (p=0,011). Conclusions : The expression of class I MHC (histologic score) in levobupivacaine infiltration group is lower than without levobupivacaine infiltration group.
Item Type: | Thesis (Masters) |
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Subjects: | R Medicine > R Medicine (General) |
Divisions: | School of Postgraduate (mixed) > Master Program in Biomedical Science |
ID Code: | 16508 |
Deposited By: | Mr UPT Perpus 2 |
Deposited On: | 13 Jul 2010 08:28 |
Last Modified: | 13 Jul 2010 08:28 |
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