Journal Of Emergency
ISSN 2301-7864
Vol. 2 / No. 1 / Published : 2013-07
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Original Article :
The effect of hyperthermia as a remote hyperthermic preconditioning (rhp) on viability of random pattern skin flap in rat
Author :
- Sigit Wahyu Jatmiko*1
- David S Perdanakusuma*2
- Mahasiswa
- Dosen
Abstract :
Background : Vascular supply has a main role in flap survival. Nutrition was delivered to a tip of flap by interconnecting subdermal plexus. The nutrition brought by it’s vascular supply sould be sufficient to keep the viability of flap. In the context of flap viability, angiogenesis process is needed to maintain vascular blood supply because some pre-existing vessel was interrupted by elevation of cutaneous flap. Remote Hyperthermic Preconditioning (RHP) is a procedure that can stimulate VEGF expression and stimulate HSP-70 secretion. VEGF as a dominant growth factor for angiogenesis and HSP-70 as a protein chaperon play a predominant role to upregulation plasminogen activator and acceleration of recanalization microvascular for angiogenesis and anti apoptosis effect resulting improvement of flap viability. Methods : Random pattern skin flap was made by elevation along 1cm X 4 cm on abdominal skin of 32 adult Winstar Rats using mess and metzembaum. They were divided into two sample groups. One was underwent without RHP (as control group) and second group was underwent RHP (as treatment group) . RHP procedure was done by exposuring right posterior extremity into 500 C waterbath for 3 seconds. Clinical evaluation was done by measuring necrotic area with visitrax, and angiogenesis evaluation by immunohistochemically using VEGF antibody. Result : Remote hyperthermic preconditioning (RHP) decrease necrotic area and increase angiogenesis process. Conclusion: Remote hyperthermic preconditioning (RHP) procedure improve viability of skin flap rather than non RHP procedures.
Keyword :
Random pattern skin flap, remote hyperthermic preconditioning, HSP-70, VEGF, angiogenesis,
References :
Addison P, Neligan P, Ashrafpour H, Khan A, Zhong A, Moses M, Forrest C, Pang C,(2003) Noninvasive Remote Ischemic Preconditioning for Global Protection of Skeletal Muscle Against Infarction Toronto : Toronto
Bailey AS, Jiang S, Afentoulis M, et al,(2006) Myeloid Lineage Progenitors Give Risen to Vascular Endothelium USA : Proc Natl Acad Sci
Archive Article
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