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Krutrök N, Pehrsson S, Van Zuydam N, Jennbacken K, Wikström J. Ventilation via nose cone results in similar hemodynamic parameters and blood gas levels as endotracheal intubation during open chest surgery in rats. Lab Anim 2021; 56:157-164. [PMID: 34407659 DOI: 10.1177/00236772211031039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Open chest surgery in rodents requires assisted breathing and the most common approach for ventilation is via an endotracheal tube. Even with well-trained operators the endotracheal intubation is technically challenging and may lead to prolonged procedures and endotracheal intubation complications. Nose cone ventilation is a simpler procedure compared to endotracheal intubation and has the potential to improve animal welfare by reducing procedure time and endotracheal intubation associated complications. Rats are obligate nose breathers, and therefore replacing intubation with air supply from a nose cone would be an advantage and a more natural way of breathing. Here, we compared the values for several blood gases, blood pressure and heart rate from rats that were nose cone ventilated with rats that underwent endotracheal intubation at 12 timepoints equally distributed across three surgical stages: baseline, open chest and closed chest. Throughout the monitoring period the hemodynamic and blood gas values for both methods of ventilation were within published, normal ranges for the rat and were biologically equivalent (equivalence test p value ≤ 0.05). Our data showed that nose cone ventilation-maintained blood gases and hemodynamic homeostasis equivalent to endotracheal intubation. Nose cone ventilation can be recommended as an alternative to endotracheal intubation in rat experiments where investigators require airway control.
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Affiliation(s)
- Nina Krutrök
- Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, Sweden
| | - Susanne Pehrsson
- Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, Sweden
| | | | - Karin Jennbacken
- Cardiovascular, Renal and Metabolism (CVRM), AstraZeneca, Sweden
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Kalkan Y, Tumkaya L, Bostan H, Tomak Y, Altuner D, Yilmaz A, Erdivanli B, Bedir R, Yalcin A, Turan A. Effect of sugammadex on rocuronium induced changes in pancreatic mast cells. Toxicol Ind Health 2013; 31:738-46. [PMID: 23552269 DOI: 10.1177/0748233713484654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mast cells play a vital role in hypersensitivity reactions. Rocuronium is known to cause mast cell mobilization, hypersensitivity, and pancreatitis. The aim of this study was to investigate the effects of sugammadex on pancreatic changes due to rocuronium. A total of 42 Sprague-Dawley male rats were divided into six equal groups to receive either rocuronium 1 mg/kg intravenously (i.v., R group), rocuronium 1 mg/kg + sugammadex 16 mg/kg i.v. (RS16 group), rocuronium 1 mg/kg + sugammadex 96 mg/kg i.v. (RS96 group), sugammadex 16 mg/kg (S16), sugammadex 96 mg/kg i.v. (S96 group), or 0.9% sodium chloride (control group). Sugammadex was administered 5s later following rocuronium. In R group, mast count was higher, and the distribution rate of granules and nuclear changes were different compared with other groups. Distribution rate of granules in groups S16 and S96 were similar to the control group and lower compared with other groups. The amount of mast cells and granule density in groups RS16 and RS96 was lower compared with R group. The amount of mast cells in groups RS16 and RS96 was significantly lower compared with other treatment groups. These results suggest that sugammadex may have an inhibitory effect on mobilization and morphological changes in pancreatic mast cells induced by administration of rocuronium and sugammadex in rats.
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Affiliation(s)
- Yıldıray Kalkan
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Levent Tumkaya
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Habib Bostan
- The Ministry of Justice, Institute of Forensic Medicine, Istanbul, Turkey
| | - Yakup Tomak
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Durdu Altuner
- Department of Pharmacology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yilmaz
- Department of Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Başar Erdivanli
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Recep Bedir
- Department of Pathology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Alper Yalcin
- Department of Histology and Embryology, Faculty of Medicine, Adiyaman University, Adiyaman, Turkey
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Kalkan Y, Bostan H, Tumkaya L, Tomak Y, Bostan M, Yilmaz A, Turut H, Temiz A, Yalçin A, Turan A. The effect of rocuronium, sugammadex, and their combination on cardiac muscle and diaphragmatic skeletal muscle cells. J Anesth 2012; 26:870-7. [DOI: 10.1007/s00540-012-1440-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 06/13/2012] [Indexed: 12/17/2022]
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