A Pilot Comparative Study of Submerge vs. Non- Submerg Saturated Salt Solution Human Cadavers Embalming Method by Gross, Histological, and Microbiological Evaluation
DOI:
https://doi.org/10.33192/Smj.2022.52Keywords:
Saturated salt solution, embalming, cadaver, dissectionAbstract
Objective: To investigate and develop the saturated salt embalming method and evaluate the cadavers.
Materials and Methods: Eight cadavers were embalmed with a saturated salt solution (SSS) by submerged (SG, N=2) and non-submerged (NSG, N=6), then evaluated by gross dissection, which compared to living humans, fresh and Thiel’s cadavers. The histological evaluation was compared to textbook pictures. The assessments were recorded on a Likert scale from 0 (no resemblance) to 5 (most resemblance). Pre-and post-embalming swabs were collected for bacterial and fungal cultures and lung tissues for acid-fast staining and mycobacterial cultures. Comparisons between the evaluated items were performed using the Kruskal–Wallis test. The Likert scale results were reported by percentage.
Results: The submerge method (N=2) was terminated after three months of embalming because it showed insufficient quality for dissection. Six cadavers in NSG had gross tissue qualities that resembled living humans or fresh cadavers on a scale of 3 or 4. NSG had excellent joint flexibility. The histological tissues showed similarity to textbook pictures, with a scale of 4 or 5. There were bacterial and fungal cultures at the end of embalming. The pathogenic bacteria were Clostridium perfringens and Pseudomonas aeruginosa. Mycobacterium cultures were negative.
Conclusion: Injected SSS, 80% total body water volume, is a promising embalming method that yields cadavers with high tissue quality, flexible joints, and good histological structures. However, this technique cannot eliminate bacteria and normal flora. It may result from the tropical climate setting.
References
Balta JY, Cronin M, Cryan JF, O’Mahony SM. Human preservation techniques in anatomy: A 21st century medical education perspective. Clinical Anatomy. 2015;28(6):725-34.
Macchi V, Munari PF, Brizzi E, Parenti A, De Caro R. Workshop in clinical anatomy for residents in gynecology and obstetrics. Clin Anat. 2003;16(5):440-7.
Yiasemidou M, Roberts D, Glassman D, Tomlinson J, Biyani S, Miskovic D. A Multispecialty Evaluation of Thiel Cadavers for Surgical Training. World J Surg. 2017;41(5):1201-7.
Benkhadra M, Gerard J, Genelot D, Trouilloud P, Girard C, Anderhuber F, et al. Is Thiel’s embalming method widely known? A world survey about its use. Surgical and radiologic anatomy: SRA. 2011;33(4):359-63.
Hammer N, Loffler S, Bechmann I, Steinke H, Hadrich C, Feja C. Comparison of modified Thiel embalming and ethanol-glycerin fixation in an anatomy environment: Potentials and limitations of two complementary techniques. Anat Sci Educ. 2015;8(1):74-85.
Homma H, Oda J, Sano H, Kawai K, Koizumi N, Uramoto H, et al. Advanced cadaver-based educational seminar for trauma surgery using saturated salt solution-embalmed cadavers. Acute Med Surg. 2019;6(2):123-30.
Durongphan A, Amornmettajit N, Rungruang J, Nitimanee E, Panichareon B. One academic year laboratory and student breathing zone formaldehyde level, measured by gas-piston hand pump at gross anatomy laboratory, Siriraj Hospital, Thailand. Environ Sci Pollut Res Int. 2020.
Durongphan A, Panichareon B, Ongsiriporn M, Piumpook N, Roongruangchai J. A Pilot Study of Measures Enhancing Local Ventilation System to Decrease Formaldehyde Level at Siriraj’s Gross Laboratory. Siriraj Med J. 2019;71:S33-S8.
Coleman R, Kogan I. An improved low-formaldehyde embalming fluid to preserve cadavers for anatomy teaching. J Anat. 1998;192(Pt 3):443-6.
Hayashi S, Homma H, Naito M, Oda J, Nishiyama T, Kawamoto A, et al. Saturated salt solution method: a useful cadaver embalming for surgical skills training. Medicine (Baltimore). 2014;93(27):e196.
Watson PE, Watson ID, Batt RD. Total body water volumes for adult males and females estimated from simple anthropometric measurements. Am J Clin Nutr. 1980;33(1):27-39.
Collaboration NCDRF. A century of trends in adult human height. Elife. 2016;5.
Young B, O’Dowd G, Woodford P. Wheater’s functional histology : a text and colour atlas. 6th ed. Philadelphia, PA: Churchill Livingston, Elsevier; 2014.
Burns DM, Bell I, Katchky R, Dwyer T, Toor J, Whyne CM, et al. Saturated Salt Solution Cadaver-Embalming Method Improves Orthopaedic Surgical Skills Training. J Bone Joint Surg Am. 2018;100(15):e104.
Shirai T, Hayashi S, Itoh M. Experience of Raising Flaps Using Cadavers Embalmed by Saturated Salt Solution Method. Plast Reconstr Surg Glob Open. 2015;3(10):e543.
Beger O, Karagul MI, Koc T, Kayan G, Cengiz A, Yilmaz SN, et al. Effects of different cadaver preservation methods on muscles and tendons: a morphometric, biomechanical and histological study. Anat Sci Int. 2020;95(2):174-89.
Miyake S, Suenaga J, Miyazaki R, Sasame J, Akimoto T, Tanaka T, et al. Thiel’s embalming method with additional intracerebral ventricular formalin injection (TEIF) for cadaver training of head and brain surgery. Anat Sci Int. 2020;95(4):564-70.
Jumlongkul A TP. Comparison between formaldehyde and salt solutions for preservation of human liver and brain slices. Chula Med J. 2017;61(1):17-30.
Burgess J. Metal ions in solution. Chichester New York: Ellis Horwood; distributed by Halsted Press; 1978. p. 481.
Wijnker JJ, Koop G, Lipman LJ. Antimicrobial properties of salt (NaCl) used for the preservation of natural casings. Food Microbiol. 2006;23(7):657-62.
Pinheiro J. Decay process of a cadaver. In: Schmitt A CE, Pinheiro J, editor. Forensic anthropology and medicine. Totowa: Humana Press; 2006. p. 85-116.
Lee Goff M. Early post-mortem changes and stages of decomposition in exposed cadavers. Exp Appl Acarol. 2009;49(1-2):21-36.
Marom A, Tarrasch R. On behalf of tradition: An analysis of medical student and physician beliefs on how anatomy should be taught. Clin Anat. 2015;28(8):980-4.
Imwattana K DY, Ngamskulrungroj P. Active learning classes in a preclinical year may help improving some soft skills of medical students. Siriraj Med J. 2020;72(5):415-23.
Lavezo JL BE, Lacy NL, Hogg T, Padilla O, Manglik N, et al. Cadaver biopsies positively impact the Medical Student Educational Experience. Medical Science Educator. 2017;27(3):543-7.
Manning EP, Mishall PL, Weidmann MD, Flax H, Lan S, Erlich M, et al. Early and prolonged opportunities to practice suturing increases medical student comfort with suturing during clerkships: Suturing during cadaver dissection. Anat Sci Educ. 2018;11(6):605-12.
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