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Anesthesia in swine

Optimizing a laboratory model to optimize translational research

Anästhesie bei Schweinen

Optimierung eines Labormodells zur Optimierung der translationalen Forschung

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Abstract

In order to extrapolate novel therapies from the bench to the bedside (translational research), animal experiments are scientifically necessary. Swine are popular laboratory animals as their cardiorespiratory physiology is very similar to humans. Every study has to be approved by the local and/or national animal ethical committees. As swine are extremely sensitive to stress the primary goal is therefore to provide a calm, stress-free environment in both housing and experimental facilities. Swine should be properly sedated for transport and normothermia needs to be ensured. It is recommended to commence anesthesia by injecting ketamine and propofol followed by endotracheal intubation during spontaneous breathing. After intubation, anesthesia maintenance is performed with morphine or piritramide, propofol and rocuronium and routine monitoring is applied analogue to a clinical operating theater for humans. Normothermia (38.5 °C) needs to be ensured. While surgical procedures can be readily extrapolated from a human operating theater to swine, non-anesthesiologist scientists may lose the animal rapidly due to airway management problems. Vascular access can be secured by cut-downs or ultrasound-guided techniques in the inguinal and the neck region. For humane euthanasia of pigs, morphine, followed by propofol, rocuronium and potassium chloride are recommended. As radical animal right groups may threaten scientists, it is prudent that animal laboratories have unmarked entrance doors, are located in buildings that are not accessible to the public and strictly controlled access of laboratory staff is enforced. In conclusion, swine are an excellent laboratory animal for bench to bedside research and can be managed properly when basic knowledge and adequate skills on careful handling, anesthesia and surgical considerations are present.

Zusammenfassung

Tierversuche sind wissenschaftlich notwendig, um das klinische Potenzial neuer Therapiemöglichkeiten zu bewerten und Studien vorzubereiten (translationale Forschung). Schweine sind gut als Versuchtstiere geeignet, da ihre kardiorespiratorische Physiologie der des Menschen sehr ähnlich ist. Jeder Tierversuch muss von einer Ethikkommission bzw. den zuständigen Behörden genehmigt werden. Schweine sind sehr anfällig für Stress, das primäre Ziel ist daher eine ruhige, stressfreie Umgebung im Stall und Forschungslabor. Schweine sollten bereits vor dem Transport ins Forschungslabor sediert werden, und die Normothermie während des Transport ist sicherzustellen. Zur Narkoseeinleitung wird die Kombination aus Ketamin bzw. Propofol gefolgt von einer endotrachealen Intubation bei Spontanatmung empfohlen. Nach der Intubation wird die Anästhesie mit Morphium bzw. Piritramid, Propofol und Rocuronium geführt. Ein intraoperatives Routinemonitoring erfolgt wie beim Menschen. Normothermie (38,5 °C) muss während der gesamten Untersuchung gewährleistet werden. Während chirurgische Techniken relativ einfach von Operationen am Menschen auf das Schwein übertragbar sind, können nicht anästhesiologisch ausgebildete Wissenschaftler aufgrund ungewohnter anatomischer Verhältnisse rasch Probleme beim Atem-Management bekommen und ein Versuchstier bereits vor der Untersuchung verlieren. Intravasale Zugänge lassen sich durch chirurgische Präparation oder ultraschallgestützte Techniken in der Leiste und am Hals schaffen. Für eine humane Euthanasie des Versuchstiers wird eine Morphininjektion empfohlen, gefolgt von Propofol, Rocuronium und Kaliumchlorid. Radikale Tierversuchsgegner können eine Bedrohung für Wissenschaftler sein; es ist daher ratsam, Forschungslabors nicht als solche zu kennzeichnen, sie in Gebäuden einzurichten, die nicht öffentlich zugänglich sind, und den Zugang der Mitarbeiter streng zu kontrollieren. Wenn Fachkenntnisse und entsprechende Kompetenzen bei der Haltung, Anästhesie und chirurgischem Vorgehen angewandt werden, eignen sich Schweine hervorragend für Bench-to-Bedside-Untersuchungen.

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Notes

  1. Der Standard 14.01.2010; Die Zeit 22.01.2010; Frankfurter Allgemeine Zeitung 14.01.2010; Die Welt 14.01.2010.

  2. Telegraph 30.08.2010.

  3. Daily Mail 28.05.2010.

References

  1. Achleitner U, Wenzel V, Strohmenger HU et al (2000) The effects of repeated doses of vasopressin or epinephrine on ventricular fibrillation in a porcine model of prolonged cardiopulmonary resuscitation. Anesth Analg 90:1067–1075

    Article  CAS  PubMed  Google Scholar 

  2. Aronoff DM, Oates JA, Boutaud O (2006) New insights into the mechanism of action of acetaminophen: its clinical pharmacologic characteristics reflect its inhibition of the two prostaglandin H2 synthases. Clin Pharmacol Ther 79:9–19

    Article  CAS  PubMed  Google Scholar 

  3. Ausserer J, Schwamberger J, Preloznik R et al (2014) A guide to successful public relations for hospitals and emergency medical services. Anaesthesist 63:338–346

    Article  CAS  PubMed  Google Scholar 

  4. Bailie MB, Wixson SK, Landi MS (1986) Vascular-access-port implantation for serial blood sampling in conscious swine. Lab Anim Sci 36:413

    Google Scholar 

  5. Boschert K, Flecknell PA, Fosse RT et al (1996) Ketamine and its use in the pig. Recommendations of the Consensus Meeting on Ketamine Anaesthesia in Pigs, Bergen 1994. Ketamine Consensus Working Group. Lab Anim 30:209–219

    Article  CAS  PubMed  Google Scholar 

  6. Bouillon T, Groeger P, Kietzmann D (2004) The pharmacokinetics of piritramide after prolonged administration to intensive care patients. Eur J Anaesthesiol 21:673–678

    Article  CAS  PubMed  Google Scholar 

  7. Brugger H, Paal P, Falk M (2010) Outcry stopped approved pig study of avalanche survival. Nature 463:877

    Article  CAS  PubMed  Google Scholar 

  8. Conn PM, Parker JV (2008) The animal research war. FASEB J 22:1294–1295

    Article  CAS  PubMed  Google Scholar 

  9. Erden IA, Altinel S, Saricaoglu F et al (2012) Effect of intra-articular injection of levobupivacaine on articular cartilage and synovium in rats. Anaesthesist 61:420–423

    Article  CAS  PubMed  Google Scholar 

  10. Erhardt W, Wriedt-Lubbe I, Schmeller ML et al (1979) Anesthsiological experiences in experimental surgery. Anaesthesist 28:359–367

    CAS  PubMed  Google Scholar 

  11. Fries D, Krismer A, Klingler A et al (2005) Effect of fibrinogen on reversal of dilutional coagulopathy: a porcine model. Br J Anaesth 95:172–177

    Article  CAS  PubMed  Google Scholar 

  12. Gramdin T (1986) Minimizing stress in pig handling. Lab Anim Sci 15

  13. Hannon JP, Bossone CA, Wade CE (1990) Normal physiological values for conscious pigs used in biomedical research. Lab Anim Sci 40:293–298

    CAS  PubMed  Google Scholar 

  14. Heinritzi K, Konig HE (1988) Anesthesia in swine. Tierarztl Prax 16:45–52

    CAS  PubMed  Google Scholar 

  15. Hohlrieder M, Kaufmann M, Moritz M, Wenzel V (2007) Management of accidental hypothermia. Anaesthesist 56:805–811

    Article  CAS  PubMed  Google Scholar 

  16. Howe BB, Fehn PA, Pensinger RR (1968) Comparative anatomical studies of the coronary arteries of canine and porcine hearts. I. Free ventricular walls. Acta Anat (Basel) 71:13–21

    Google Scholar 

  17. Idris AH, Becker LB, Wenzel V et al (1994) Lack of uniform definitions and reporting in laboratory models of cardiac arrest: a review of the literature and a proposal for guidelines. Ann Emerg Med 23:9–16

    Article  CAS  PubMed  Google Scholar 

  18. Johnson DH (2010) Endoscopic intubation of exotic companion mammals. Vet Clin North Am Exot Anim Pract 13:273–289

    Article  PubMed  Google Scholar 

  19. Kaiser GM, Heuer MM, Fruhauf NR et al (2006) General handling and anesthesia for experimental surgery in pigs. J Surg Res 130:73–79

    Article  CAS  PubMed  Google Scholar 

  20. Kohn DF, Wixson SK, White WJ, Benson JG (1997) Anaesthesia and analgesia in laboratory animals. American College of Laboratory Animal Medicine Series 1:314–333

    Google Scholar 

  21. Koniaris LG, Zimmers TA, Lubarsky DA, Sheldon JP (2005) Inadequate anaesthesia in lethal injection for execution. Lancet 365:1412–1414

    Article  PubMed  Google Scholar 

  22. Krismer AC, Hogan QH, Wenzel V et al (2001) The efficacy of epinephrine or vasopressin for resuscitation during epidural anesthesia. Anesth Analg 93:734–742

    Article  CAS  PubMed  Google Scholar 

  23. Krismer AC, Wenzel V, Voelckel WG et al (2005) Employing vasopressin as an adjunct vasopressor in uncontrolled traumatic hemorrhagic shock. Three cases and a brief analysis of the literature. Anaesthesist 54:220–224

    Article  CAS  PubMed  Google Scholar 

  24. Krystal JH, Carter CS, Geschwind D et al (2008) It is time to take a stand for medical research and against terrorism targeting medical scientists. Biol Psychiatry 63:725–727

    Article  PubMed  Google Scholar 

  25. Lienhart HG, Wenzel V, Braun J et al (2007) Vasopressin for therapy of persistent traumatic hemorrhagic shock: the VITRIS. at study. Anaesthesist 56:145–148, 150

    Article  CAS  PubMed  Google Scholar 

  26. Lindner KH, Ahnefeld FW, Dick W, Lotz P (1985) Sodium bicarbonate administration in cardiopulmonary resuscitation. Results of an animal experimental study. Anaesthesist 34:37–45

    CAS  PubMed  Google Scholar 

  27. Mauch J, Kutter AP, Martin Jurado O et al (2011) Bupivacaine toxicity and propofol anesthesia: animal study on intravascular bupivacaine injection. Anaesthesist 60:814–818

    Article  CAS  PubMed  Google Scholar 

  28. Mayr VD, Luckner G, Jochberger S et al (2007) Vasopressin as a rescue vasopressor agent. Treatment of selected cardiogenic shock states. Anaesthesist 56:1017–1020, 1022–1023

    Article  CAS  PubMed  Google Scholar 

  29. Mayr VD, Wenzel V, Muller T et al (2004) Effects of vasopressin on left anterior descending coronary artery blood flow during extremely low cardiac output. Resuscitation 62:229–235

    Article  CAS  PubMed  Google Scholar 

  30. Close B, Baumans V, Bromage N et al (1997) Recommendations for euthanasia of experimental animals: part 2. Lab Anim 31

  31. Paal P, Braun P, Brugger H et al (2010) How the media and animal rights activists put avalanche burial study on ice. BMJ 341:c3778

    Article  PubMed  Google Scholar 

  32. Paal P, Strapazzon G, Braun P et al (2013) Factors affecting survival from avalanche burial – a randomised prospective porcine pilot study. Resuscitation 84:239–243

    Article  PubMed  Google Scholar 

  33. Pehböck D, Wenzel V, Voelckel W et al (2010) Effects of preoxygenation on desaturation time during hemorrhagic shock in pigs. Anesthesiology 113:593-599

    PubMed  Google Scholar 

  34. Radde GR, Hinson A, Crenshaw D, Toth LA (1996) Evaluation of anaesthetic regimens in guineapigs. Lab Anim 30:220–227

    Article  CAS  PubMed  Google Scholar 

  35. Raedler C, Voelckel WG, Wenzel V et al (2004) Treatment of uncontrolled hemorrhagic shock after liver trauma: fatal effects of fluid resuscitation versus improved outcome after vasopressin. Anesth Analg 98:1759–1766

    Article  CAS  PubMed  Google Scholar 

  36. Safar P (1993) Cerebral resuscitation after cardiac arrest: research initiatives and future directions. Ann Emerg Med 22:324–349

    Article  CAS  PubMed  Google Scholar 

  37. Schaper W, Jageneau A, Xhonneux R (1967) The development of collateral circulation in the pig and dog heart. Cardiologia 51:321–335

    Article  CAS  PubMed  Google Scholar 

  38. Sechzer PH, Egbert LD, Linde HW et al (1960) Effect of carbon dioxide inhalation on arterial pressure, ECG and plasma catecholamines and 17-OH corticosteroids in normal man. J Appl Physiol 15:454–458

    CAS  PubMed  Google Scholar 

  39. Swindle MM, Smith AC, Hepburn BJ (1988) Swine as models in experimental surgery. J Invest Surg 1:65–79

    Article  CAS  PubMed  Google Scholar 

  40. Voelckel WG, Lindner KH, Wenzel V et al (1999) Effect of small-dose dopamine on mesenteric blood flow and renal function in a pig model of cardiopulmonary resuscitation with vasopressin. Anesth Analg 89:1430–1436

    CAS  PubMed  Google Scholar 

  41. Planta I von, Weil MH, Planta M von et al (1991) Hypercarbic acidosis reduces cardiac resuscitability. Crit Care Med 19:1177–1182

    Article  Google Scholar 

  42. Weiss JB, Becker K, Bernsmann E et al (2014) Tierpflege in Forschung und Klinik, 4. Aufl. Enke, Stuttgart

  43. Wenzel V, Krismer AC, Arntz HR et al (2004) A comparison of vasopressin and epinephrine for out-of-hospital cardiopulmonary resuscitation. N Engl J Med 350:105–113

    Article  CAS  PubMed  Google Scholar 

  44. Wenzel V, Linder KH, Augenstein S et al (1998) Vasopressin combined with epinephrine decreases cerebral perfusion compared with vasopressin alone during cardiopulmonary resuscitation in pigs. Stroke 29:1462–1467 (discussion 1467–1468)

    Article  CAS  PubMed  Google Scholar 

  45. Wenzel V, Lindner KH, Augenstein S et al (1999) Intraosseous vasopressin improves coronary perfusion pressure rapidly during cardiopulmonary resuscitation in pigs. Crit Care Med 27:1565–1569

    Article  CAS  PubMed  Google Scholar 

  46. Wenzel V, Lindner KH, Krismer AC et al (2000) Survival with full neurologic recovery and no cerebral pathology after prolonged cardiopulmonary resuscitation with vasopressin in pigs. J Am Coll Cardiol 35:527–533

    Article  CAS  PubMed  Google Scholar 

  47. Wenzel V, Padosch SA, Voelckel WG et al (2000) Survey of effects of anesthesia protocols on hemodynamic variables in porcine cardiopulmonary resuscitation laboratory models before induction of cardiac arrest. Comp Med 50:644–648

    CAS  PubMed  Google Scholar 

  48. Close B, Baumans V, Bromage N et al (1996) Recommendations for euthanasia of experimental animals: part 1. Lab Anim 30:293–316

    Article  CAS  PubMed  Google Scholar 

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Compliance with ethical guidelines

Conflict of interest. D. Pehböck, H. Dietrich, G. Klima, P. Paal, Karl H. Lindner and Volker Wenzel state that there are no conflicts of interest. All national guidelines on the care and use of laboratory animals have been followed and the necessary approval was obtained from the relevant authorities.

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Correspondence to V. Wenzel M.D., M.Sc..

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Pehböck, D., Dietrich, H., Klima, G. et al. Anesthesia in swine. Anaesthesist 64, 65–70 (2015). https://doi.org/10.1007/s00101-014-2371-2

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