Novosti
Khirurgii

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Year 2013 Vol. 21 No 3

EXPERIMENTAL SURGERY

Y.S. VINNIK, L.À. SHESTAKOVA, O.V. TEPLYAKOVA, N.I. CEDRICK, O.V. PERYANOVA, A.G. GITLINA, S.V. YAKIMOV, A.M. PLAHOTNIKOVA

EXPERIMENTAL MODEL OF PRIMARY INFECTED PANCREATIC NECROSIS

SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”,
The Russian Federation

Objectives. To study the possibilities of A. baumannii clinical strain in modeling of the primary infected pancreatic necrosis in laboratory rabbits as well as to evaluate the capability of reproduction and validity of the improved experimental model.
Methods. The research was carried out on 10 Chinchilla rabbits breed (males) aging 4-5 months. The improved technique provided the middle laparotomy, the puncture of the gallbladder with aspiration of 0,6 ml of bile. The pancreatic necrosis induction was performed with a mechanical pressure of pancreatic tissue in three standard points with Bilrot’s clips and the following intraparenchymatous injection of 0,2 ml autobile and suspension of A. baumannii clinical strain.
Results. On the second and third days after modeling the clinical symptoms of the system inflammation reaction such as tachypnea, tachycardia and hyperthermia have been registered. During relaparotomy performed 72 hours after the pancreatic necrosis induction a cloudy exudate with the presence of fibrin strands was determined in the abdominal cavity; dilatation of the stomach and small intestine was noted. The pancreas was not clearly seen on the background of small intestines mesentery and looked like a homogenous mass consisted of the confluent steatonecrosis focuses. Hystologically lysis of the acinar and glandular parenchyma was determined in the pancreas biopsies of the animals. While liver sample examining the signs of secondary acute hepatitis were detected.
The kidneys characterized by the interstitial nephritis, the signs of interstitial myocarditis were observed in myocardium. The evidence of bronchopneumonia and obstructive emphysema with formation of bullas was revealed in the lungs.
A. baumannii was identified in the amount of 5,0×107 CFU/g taken from pancreatic biopsy specimens and in the amount of 107 CFU/ml – from the peritoneal exudate. A. baumannii combined with enterobacteria and Entercoccus spp. has been detected in peritoneal exudates (4 animals).
Conclusions. The use of the improved method allowed to simulate the infected pancreatic necrosis in all the animals with clinical and morphological symptoms of the systemic inflammation reaction as well as with the generalization of bacterial peritonitis and level of superinfection of 40,0% within 72 hours from the moment of modeling.

Keywords: infected pancreatic necrosis, modeling, experiment, A. baumannii
p. 3– 8 of the original issue
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Address for correspondence:
660022, g. Krasnoiarsk, ul. Partizana Zhelezniaka, d. 1, GBOU VPO "Krasnoiarskii gosudarstvennyi meditsinskii universitet imeni professora V.F. Voino-Iasenetskogo" kafedra obshchei khirurgii,
e-mail: teplyakova-olga@yandex.ru,
Teplyakova Olga Valerevna
Information about the authors:
Vinnik Y.S. A Honored Worker of Science of Russia, MD, professor, a head of the general surgery chair of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino -Yasenetsky”.
Shestakova O.V. PhD, an associate professor, a head of the pathologic anatomy chair named after professor P.G. Podzolkov of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”.
Teplyakova O.V. PhD, an applicant for Doctor’s degree of the general surgery chair of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”.
Cedrick N.I. An assistant of the general surgery chair of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”. Peryanova O.V. PhD, an associate professor, a head of microbiology chair named after B.M. Zelmanovich of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”.
Gitlina A.G. A senior researcher of CSRL of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”.
Yakimov S.V. MD, professor of the general surgery chair of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F.Voino-Yasenetsky”.
Plahotnikova A.M. A 6-year student of SBEE HPE “Krasnoyarsk State Medical University named after professor V.F. Voino-Yasenetsky”.
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