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A prospective, randomized, blind comparison between saline, calcium gluconate and diphoterine for washing skin acid injuries in rats: effects on substance P and β-endorphin release

Published online by Cambridge University Press:  23 December 2004

M. Cavallini
Affiliation:
Galeazzi Hospital, Unit of Plastic Surgery, Milan, Italy
A. Casati
Affiliation:
IRCCS San Raffaele Hospital, Vita-Salute University of Milan, Department of Anesthesiology, Milan, Italy
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Abstract

Summary

Background and objective: A randomized, blind study to evaluate the effects on β-endorphin and substance P release after washing acid burns with 0.9% saline, calcium gluconate or diphoterine in a model of chemical burn in rats.

Methods: Twenty Sprague–Dawley rats (approximate weight 250 g) were anaesthetized with ketamine (30 mg kg−1 intramuscularly) and then given an acid injury on the back skin with 0.5 mL of hydrochloric acid 52%. The rats were then randomly allocated to receive no washing (control group, n = 5), washing with normal saline (0.9% NaCl) (n = 5), 10% calcium gluconate (n = 5) or diphoterine (n = 5). Blood concentrations of substance P and β-endorphin were measured 6 h, 48 h and 7 days after the chemical burn. An independent blinded observer evaluated wound healing at the 7th day.

Results: Seven days after burn wound healing was almost complete only in rats treated with diphoterine. Plasma concentrations of substance P were lower in rats receiving skin flushing with diphoterine compared to the other groups at 6 and 48 h after acid burn (P < 0.05 and P < 0.05, respectively); this was also associated with higher concentrations of β-endorphin at day 7 (P < 0.05).

Conclusions: Skin flushing with diphoterine reduced substance P release during the first 48 h after burn, and was associated with better wound healing and higher concentrations of β-endorphin 7 days later when compared with normal saline or 10% calcium gluconate.

Type
Original Article
Copyright
2004 European Society of Anaesthesiology

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References

Tompkins RG, Burke JF. Care of burns. In: Thinker J and Zapol WM, eds. Care of the Critically Ill Patient, 2nd edn. New York, USA: Springer-Verlag, 1991: 893907.
Bates N. Acid and alkali injury. Emerg Nurse 2000; 7: 2126.Google Scholar
Acikel C, Ulkur E, Guler MM. Prolonged intermit-tent hydrotherapy and early tangential excision in the treatment of an extensive strong alkali burn. Burns 2001; 27: 293296.Google Scholar
Dunnick CA, Gibran NS, Heimbach DM. Substance P has a role in neurogenic mediation of human burn wound healing. J Burn Care Rehabil 1996; 17: 390396.Google Scholar
Hu D, Chen B, Lin S, Tang C. Changes in substance P in the jejuna of rats after burns. Burns 1996; 22: 463467.Google Scholar
Siney L, Brain SD. Involvement of sensory neuropeptides in the development of plasma extravasation in rat dorsal skin following thermal injury. Br J Pharmacol 1996; 117: 10651070.Google Scholar
de Caballos ML, Jenner P, Mardsen CD. Increased [Met]enkefalin and decreased substance P in spinal cord following thermal injury to one limb. Neuroscience 1990; 36: 731736.Google Scholar
Altun V, Hakvoort TE, van Zuijlen PP, van der Kwast TH, Prens EP. Nerve outgrowth and neuropeptide expression during the remodelling of human burn wound scars. Burns 2001; 27: 717722.Google Scholar
Onuoha GN, Alpar EK. Levels of vasodilators (SP, CGRP) and vasoconstrictor (NPY) peptides in early human burns. Eur J Clin Invest 2001; 31: 253257.Google Scholar
Matsuno K. The treatment of hydrofluoric acid burns. Occup Med 1996; 46: 313317.Google Scholar
Yano K, Hosokawa K, Kakibuchi M, Hikasa H, Hata Y. Effects of washing acid injuries to the skin with water: an experimental study using rats. Burns 1995; 21: 500502.Google Scholar
Seyb ST, Noordhoek L, Botens S, Mani MM. A study to determine the efficacy of treatments for hydrofluoric acid burns. J Burn Care Rehabil 1995; 16: 253257.Google Scholar
Gerard M, Josset P, Louis V, Menerath JM, Blomet J, Merle H. Is there a delay in bathing the external eye in the treatment of ammonia eye burns? Comparison of two ophthalmic solutions: physiological serum and diphoterine. J Fr Ophtalmol 2000; 23: 449458.Google Scholar
Hall AH, Blomet J, Mathieu L. Diphoterine for emergent eye/skin chemical splash decontamination: a review. Vet Hum Toxicol 2002; 44: 228231.Google Scholar
Society of Toxicology. Guiding principles in the use of animals in toxicology. Adopted by The Society of Toxicology in July 1989. Toxicol Appl Pharmacol 2002; 178: 4.
Litovitz TL, Klein-Schwartz W, White S, et al. Annual Report of the American Association of Poison Control Centers Toxic Exposure Surveillance System, 1999. Am J Emerg Med 2000; 18: 517574.Google Scholar
Burkhart KK, Brent J, Kirk MA, Baker DC, Kulig KW. Comparison of topical magnesium and calcium treatment for dermal hydrofluoric acid burns. Ann Emerg Med 1994; 24: 913.Google Scholar
Saria A. Substance P in sensory nerve fibres contributes to the development of oedema in the rat hind paw after thermal injury. Br J Pharmacol 1984; 82: 217222.Google Scholar
Springer J, Geppetti P, Fisher A, Gronberg DA. Calcitonin gene-related peptide as inflammatory mediator. Pulm Pharmacol Ther 2003; 16: 121130.Google Scholar
Bromberg BE, Song IC, Walden RH. Hydrotherapy of chemical burns. Plast Reconstr Surg 1965; 35: 8595.Google Scholar
Gruber RP, Laub DR, Vistnes LM. The effect of hydrotherapy on the clinical course and pH of experimental cutaneous chemical burns. Plast Reconstr Surg 1975; 55: 200204.Google Scholar