1
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Felli E, Cinelli L, Bannone E, Giannone F, Muttillo EM, Barberio M, Keller DS, Rodríguez-Luna MR, Okamoto N, Collins T, Hostettler A, Schuster C, Mutter D, Pessaux P, Marescaux J, Gioux S, Felli E, Diana M. Hyperspectral Imaging in Major Hepatectomies: Preliminary Results from the Ex-Machyna Trial. Cancers (Basel) 2022; 14:cancers14225591. [PMID: 36428685 PMCID: PMC9688371 DOI: 10.3390/cancers14225591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/07/2022] [Accepted: 11/12/2022] [Indexed: 11/16/2022] Open
Abstract
Ischemia-reperfusion injury during major hepatic resections is associated with high rates of post-operative complications and liver failure. Real-time intra-operative detection of liver dysfunction could provide great insight into clinical outcomes. In the present study, we demonstrate the intra-operative application of a novel optical technology, hyperspectral imaging (HSI), to predict short-term post-operative outcomes after major hepatectomy. We considered fifteen consecutive patients undergoing major hepatic resection for malignant liver lesions from January 2020 to June 2021. HSI measures included tissue water index (TWI), organ hemoglobin index (OHI), tissue oxygenation (StO2%), and near infrared (NIR). Pre-operative, intra-operative, and post-operative serum and clinical outcomes were collected. NIR values were higher in unhealthy liver tissue (p = 0.003). StO2% negatively correlated with post-operative serum ALT values (r = -0.602), while ΔStO2% positively correlated with ALP (r = 0.594). TWI significantly correlated with post-operative reintervention and OHI with post-operative sepsis and liver failure. In conclusion, the HSI imaging system is accurate and precise in translating from pre-clinical to human studies in this first clinical trial. HSI indices are related to serum and outcome metrics. Further experimental and clinical studies are necessary to determine clinical value of this technology.
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Affiliation(s)
- Emanuele Felli
- Digestive and Endocrine Surgery, Nouvel Hopital Civil, University of Strasbourg, 67000 Strasbourg, France
- University Hospital Institute (IHU), Institut de Chirurgie Guidée par l’image, University of Strasbourg, 67000 Strasbourg, France
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Institut of Viral and Liver Disease, Inserm U1110, University of Strasbourg, 67000 Strasbourg, France
| | - Lorenzo Cinelli
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Department of Gastrointestinal Surgery, San Raffaele Hospital IRCCS, 20132 Milan, Italy
| | - Elisa Bannone
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Department of Surgery, Istituto Fondazione Poliambulanza, 25124 Brescia, Italy
- Department of Pancreatic Surgery, Verona University, 37134 Verona, Italy
| | - Fabio Giannone
- Digestive and Endocrine Surgery, Nouvel Hopital Civil, University of Strasbourg, 67000 Strasbourg, France
- University Hospital Institute (IHU), Institut de Chirurgie Guidée par l’image, University of Strasbourg, 67000 Strasbourg, France
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Institut of Viral and Liver Disease, Inserm U1110, University of Strasbourg, 67000 Strasbourg, France
| | - Edoardo Maria Muttillo
- Dipartimento di Scienze Medico Chirurgiche e Medicina Traslazionale, Sapienza Università di Roma, 00189 Roma, Italy
| | - Manuel Barberio
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Ospedale Cardinale G. Panico, General Surgery Department, 73039 Tricase, Italy
| | | | - María Rita Rodríguez-Luna
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- ICube Laboratory, Photonics Instrumentation for Health, 67400 Strasbourg, France
| | - Nariaki Okamoto
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
| | - Toby Collins
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
| | | | - Catherine Schuster
- Institut of Viral and Liver Disease, Inserm U1110, University of Strasbourg, 67000 Strasbourg, France
| | - Didier Mutter
- Digestive and Endocrine Surgery, Nouvel Hopital Civil, University of Strasbourg, 67000 Strasbourg, France
- University Hospital Institute (IHU), Institut de Chirurgie Guidée par l’image, University of Strasbourg, 67000 Strasbourg, France
| | - Patrick Pessaux
- Digestive and Endocrine Surgery, Nouvel Hopital Civil, University of Strasbourg, 67000 Strasbourg, France
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Institut of Viral and Liver Disease, Inserm U1110, University of Strasbourg, 67000 Strasbourg, France
| | - Jacques Marescaux
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
| | - Sylvain Gioux
- ICube Laboratory, Photonics Instrumentation for Health, 67400 Strasbourg, France
| | - Eric Felli
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, 3012 Bern, Switzerland
- Department for BioMedical Research, Hepatology, University of Bern, 3012 Bern, Switzerland
| | - Michele Diana
- Digestive and Endocrine Surgery, Nouvel Hopital Civil, University of Strasbourg, 67000 Strasbourg, France
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- ICube Laboratory, Photonics Instrumentation for Health, 67400 Strasbourg, France
- Correspondence:
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Felli E, Al-Taher M, Collins T, Nkusi R, Felli E, Baiocchini A, Lindner V, Vincent C, Barberio M, Geny B, Ettorre GM, Hostettler A, Mutter D, Gioux S, Schuster C, Marescaux J, Gracia-Sancho J, Diana M. Automatic Liver Viability Scoring with Deep Learning and Hyperspectral Imaging. Diagnostics (Basel) 2021; 11:diagnostics11091527. [PMID: 34573869 PMCID: PMC8472457 DOI: 10.3390/diagnostics11091527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/12/2021] [Accepted: 08/21/2021] [Indexed: 12/24/2022] Open
Abstract
Hyperspectral imaging (HSI) is a non-invasive imaging modality already applied to evaluate hepatic oxygenation and to discriminate different models of hepatic ischemia. Nevertheless, the ability of HSI to detect and predict the reperfusion damage intraoperatively was not yet assessed. Hypoxia caused by hepatic artery occlusion (HAO) in the liver brings about dreadful vascular complications known as ischemia-reperfusion injury (IRI). Here, we show the evaluation of liver viability in an HAO model with an artificial intelligence-based analysis of HSI. We have combined the potential of HSI to extract quantitative optical tissue properties with a deep learning-based model using convolutional neural networks. The artificial intelligence (AI) score of liver viability showed a significant correlation with capillary lactate from the liver surface (r = −0.78, p = 0.0320) and Suzuki’s score (r = −0.96, p = 0.0012). CD31 immunostaining confirmed the microvascular damage accordingly with the AI score. Our results ultimately show the potential of an HSI-AI-based analysis to predict liver viability, thereby prompting for intraoperative tool development to explore its application in a clinical setting.
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Affiliation(s)
- Eric Felli
- Hepatology, Department of Biomedical Research, Inselspital, University of Bern, 3008 Bern, Switzerland;
- IHU-Strasbourg, Institute of Image-Guided Surgery, 67000 Strasbourg, France;
- Institute of Physiology, EA3072 Mitochondria Respiration and Oxidative Stress, University of Strasbourg, 67000 Strasbourg, France;
- Correspondence: ; Tel.: +41-3-1632-3598
| | - Mahdi Al-Taher
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
| | - Toby Collins
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
| | - Richard Nkusi
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
| | - Emanuele Felli
- Department of General, Digestive, and Endocrine Surgery, University Hospital of Strasbourg, 67000 Strasbourg, France; (E.F.); (D.M.)
| | - Andrea Baiocchini
- Department of Pathology, San Camillo Forlanini Hospital, 00152 Rome, Italy;
| | - Veronique Lindner
- Department of Pathology, University Hospital of Strasbourg, 67000 Strasbourg, France;
| | - Cindy Vincent
- IHU-Strasbourg, Institute of Image-Guided Surgery, 67000 Strasbourg, France;
| | - Manuel Barberio
- Department of General Surgery, Cardinale Giovanni Panico Hospital, 73039 Tricase, Italy;
| | - Bernard Geny
- Institute of Physiology, EA3072 Mitochondria Respiration and Oxidative Stress, University of Strasbourg, 67000 Strasbourg, France;
| | - Giuseppe Maria Ettorre
- San Camillo Forlanini Hospital, Department of Transplantation and General Surgery, 00152 Rome, Italy;
| | - Alexandre Hostettler
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
| | - Didier Mutter
- Department of General, Digestive, and Endocrine Surgery, University Hospital of Strasbourg, 67000 Strasbourg, France; (E.F.); (D.M.)
| | - Sylvain Gioux
- Photonics Instrumentation for Health, iCube Laboratory, University of Strasbourg, 67000 Strasbourg, France;
| | - Catherine Schuster
- INSERM, Institute of Viral and Liver Disease, U1110, 67000 Strasbourg, France;
| | - Jacques Marescaux
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
| | - Jordi Gracia-Sancho
- Hepatology, Department of Biomedical Research, Inselspital, University of Bern, 3008 Bern, Switzerland;
- Liver Vascular Biology, IDIBAPS Biomedical Research Institute and CIBEREHD, 08036 Barcelona, Spain
| | - Michele Diana
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France; (M.A.-T.); (T.C.); (R.N.); (A.H.); (J.M.); (M.D.)
- Liver Vascular Biology, IDIBAPS Biomedical Research Institute and CIBEREHD, 08036 Barcelona, Spain
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Aizawa K, Muraoka A, Kurumisawa S, Akutsu H, Sugaya A, Uesugi S, Kawahito K. Artificial endocrine pancreas with a closed-loop system effectively suppresses the accelerated hyperglycemic status after reperfusion during aortic surgery. Gen Thorac Cardiovasc Surg 2020; 69:14-18. [PMID: 32845449 DOI: 10.1007/s11748-020-01415-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/16/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To control intraoperative hyperglycemia in patients who underwent aortic surgery using STG-55® artificial endocrine pancreas and clarify the effectiveness of this device. METHODS Blood glucose control using the STG-55® was performed in 18 patients (15 men and 3 women; age, 66 ± 10 years) who required hypothermic circulatory arrest (STG-55® group). Seventeen patients (10 men and 7 women; age, 71 ± 8 years) whose blood glucose was controlled using the conventional method were included in the control group. Glucose concentration was controlled with the aim of maintaining it at 150 mg/dl. RESULTS In both groups, the blood glucose concentrations did not significantly change during the interruption of systemic perfusion; however, a sharp increase was noted immediately after reperfusion. Although the hyperglycemic status persisted after reperfusion in the control group, it was effectively suppressed in the STG-55® group (STG® vs. control group at 50 min after reperfusion: 180 ± 35 vs. 212 ± 47 mg/dl, p = 0.026) and blood glucose concentration reached the target value of 150 mg/dl at 100 min after reperfusion (STG® vs. control group: 153 ± 29 vs. 215 ± 43 mg/dl, p = 0.0008). The total administered insulin dose was 175 ± 81 U and 5 ± 3 U in the STG® and control groups, respectively (p < 0.0001). CONCLUSIONS To treat the accelerated hyperglycemic status in aortic surgery requiring circulatory arrest, strict glycemic control using an artificial endocrine pancreas might be beneficial.
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Affiliation(s)
- Kei Aizawa
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Arata Muraoka
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
| | - Soki Kurumisawa
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
| | - Hirohiko Akutsu
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
| | - Akira Sugaya
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
| | - Satoshi Uesugi
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
| | - Koji Kawahito
- Department of Cardiovascular Surgery, Jichi Medical School, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, 329-0498, Japan
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Evaluation of Intrahepatic Lactate/Pyruvate Ratio As a Marker for Ischemic Complications Early After Liver Transplantation-A Clinical Study. Transplant Direct 2020; 5:e505. [PMID: 32095500 PMCID: PMC7004593 DOI: 10.1097/txd.0000000000000952] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 09/25/2019] [Indexed: 12/04/2022] Open
Abstract
Background. Lactate/pyruvate ratio has been introduced as a sensitive marker for ischemia in the transplanted liver. In the present study, we aimed to evaluate lactate/pyruvate ratio measured in the liver by microdialysis as a marker for ischemic complications early after liver transplantation. Methods. Forty-five patients undergoing liver transplantation were included in the study. A microdialysis catheter was placed in the liver graft directly following liver transplantation and the metabolites lactate and pyruvate measured for up to 6 days and the lactate/pyruvate ratio calculated. The association between increased intrahepatic lactate/pyruvate ratio and ischemic complications was studied. Results. One of 45 patients developed hepatic arterial thrombosis. Forty-four events with increased lactate/pyruvate ratio were identified in 24 patients. In none of the 24 patients that had a raised lactate/pyruvate ratio could we detect occurrence of any ischemic complication. In the patient that did have hepatic arterial thrombosis, the lactate/pyruvate ratio did not show a significant prolonged rise. Conclusions. An increase in the intrahepatic lactate/pyruvate ratio is not necessarily indicative of ischemic complications and is thus not a reliable marker for monitoring of clinically significant ischemia in the liver early after transplantation.
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5
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Zhong H, Wang P, Song Y, Zhang X, Che L, Feng B, Lin Y, Xu S, Li J, Wu D, Wu Q, Fang Z. Mammary cell proliferation and catabolism of adipose tissues in nutrition-restricted lactating sows were associated with extracellular high glutamate levels. J Anim Sci Biotechnol 2018; 9:78. [PMID: 30410753 PMCID: PMC6217789 DOI: 10.1186/s40104-018-0293-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/19/2018] [Indexed: 11/10/2022] Open
Abstract
Background Persistent lactation, as the result of mammary cellular anabolism and secreting function, is dependent on substantial mobilization or catabolism of body reserves under nutritional deficiency. However, little is known about the biochemical mechanisms for nutrition-restricted lactating animals to simultaneously maintain the anabolism of mammary cells while catabolism of body reserves. In present study, lactating sows with restricted feed allowance (RFA) (n = 6), 24% feed restriction compared with the control (CON) group (n = 6), were used as the nutrition-restricted model. Microdialysis and mammary venous cannulas methods were used to monitor postprandial dynamic changes of metabolites in adipose and mammary tissues. Results At lactation d 28, the RFA group showed higher (P < 0.05) loss of body weight and backfat than the CON group. Compared with the CON group, the adipose tissue of the RFA group had higher (P < 0.05) extracellular glutamate and insulin levels, increased (P < 0.05) lipolysis related genes (HSL and ATGL) expression, and decreased (P < 0.05) glucose transport and metabolism related genes (VAMP8, PKLR and LDHB) expression. These results indicated that under nutritional restriction, reduced insulin-mediated glucose uptake and metabolism and increased lipolysis in adipose tissues was related to extracellular high glutamate concentration. As for mammary glands, compared with the CON group, the RFA group had up-regulated (P < 0.05) expression of Notch signaling ligand (DLL3) and receptors (NOTCH2 and NOTCH4), higher (P < 0.05) extracellular glutamate concentration, while expression of cell proliferation related genes and concentrations of most metabolites in mammary veins were not different (P > 0.05) between groups. Accordingly, piglet performance and milk yield did not differ (P > 0.05) between groups. It would appear that activation of Notch signaling and adequate supply of glutamate might assist mammogenesis. Conclusions Mammary cell proliferation and catabolism of adipose tissues in nutrition-restricted lactating sows were associated with extracellular high glutamate levels. Electronic supplementary material The online version of this article (10.1186/s40104-018-0293-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Heju Zhong
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Peng Wang
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Yumo Song
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Xiaoling Zhang
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Lianqiang Che
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Bin Feng
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Yan Lin
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Shengyu Xu
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Jian Li
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - De Wu
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
| | - Qiaofeng Wu
- 2Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137 China
| | - Zhengfeng Fang
- 1Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130 China
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Abstract
Imaging provides an insight into biological patho-mechanisms of diseases. However, the link between the imaging phenotype and the underlying molecular processes is often not well understood. Methods such as metabolomics and proteomics reveal detailed information about these processes. Unfortunately, they provide no spatial information and thus cannot be easily correlated with functional imaging. We have developed an image-guided milling machine and unique workflows to precisely isolate tissue samples based on imaging data. The tissue samples remain cooled during the entire procedure, preventing sample degradation. This enables us to correlate, at an unprecedented spatial precision, comprehensive imaging information with metabolomics and proteomics data, leading to a better understanding of diseases. Phenotypic heterogeneity is commonly observed in diseased tissue, specifically in tumors. Multimodal imaging technologies can reveal tissue heterogeneity noninvasively in vivo, enabling imaging-based profiling of receptors, metabolism, morphology, or function on a macroscopic scale. In contrast, in vitro multiomics, immunohistochemistry, or histology techniques accurately characterize these heterogeneities in the cellular and subcellular scales in a more comprehensive but ex vivo manner. The complementary in vivo and ex vivo information would provide an enormous potential to better characterize a disease. However, this requires spatially accurate coregistration of these data by image-driven sampling as well as fast sample-preparation methods. Here, a unique image-guided milling machine and workflow for precise extraction of tissue samples from small laboratory animals or excised organs has been developed and evaluated. The samples can be delineated on tomographic images as volumes of interest and can be extracted with a spatial accuracy better than 0.25 mm. The samples remain cooled throughout the procedure to ensure metabolic stability, a precondition for accurate in vitro analysis.
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Kawahito K, Sato H, Kadosaki M, Egawa A, Misawa Y. Spike in glucose levels after reperfusion during aortic surgery: assessment by continuous blood glucose monitoring using artificial endocrine pancreas. Gen Thorac Cardiovasc Surg 2017; 66:150-154. [DOI: 10.1007/s11748-017-0872-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/18/2017] [Indexed: 12/28/2022]
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Abrahamsson P, Johansson G, Åberg AM, Winsö O, Blind PJ. Outcome of microdialysis sampling on liver surface and parenchyma. J Surg Res 2015; 200:480-7. [PMID: 26505659 DOI: 10.1016/j.jss.2015.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/20/2015] [Accepted: 09/03/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND To investigate whether surface microdialysis (μD) sampling in probes covered by a plastic film, as compared to noncovered and to intraparenchymatous probes, would increase the technique's sensitivity for pathophysiologic events occurring in a liver ischemia-reperfusion model. Placement of μD probes in the parenchyma of an organ, as is conventionally done, may cause adverse effects, e.g., bleeding, possibly influencing outcome. METHODS A transient ischemia-reperfusion model of the liver was used in six anesthetized normoventilated pigs. μD probes were placed in the parenchyma and on the liver surface. Surface probes were either left uncovered or were covered by plastic film. RESULTS Lactate and glucose levels were significantly higher in plastic film covered probes than in uncovered surface probes throughout the ischemic period. Glycerol levels were significantly higher in plastic film covered probes than in uncovered surface probes at 30 and 45 min into ischemia. CONCLUSIONS Covering the μD probe increases the sensibility of the μD-technique in monitoring an ischemic insult and reperfusion in the liver. These findings confirm that the principle of surface μD works, possibly replacing need of intraparenchymatous placement of μD probes. Surface μD seemingly allows, noninvasively from an organ's surface, via the extracellular compartment, assessment of intracellular metabolic events. The finding that covered surface μD probes allows detection of local metabolic changes earlier than do intraparenchymatous probes, merit further investigation focusing on μD probe design.
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Affiliation(s)
- Pernilla Abrahamsson
- Department of Surgical and Perioperative Sciences, Anaesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden.
| | - Göran Johansson
- Department of Surgical and Perioperative Sciences, Anaesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden
| | - Anna-Maja Åberg
- Department of Surgical and Perioperative Sciences, Anaesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden
| | - Ola Winsö
- Department of Surgical and Perioperative Sciences, Anaesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden
| | - Per-Jonas Blind
- Department of Surgical and Perioperative Sciences, Anaesthesiology and Intensive Care Medicine, Umeå University, Umeå, Sweden
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Perera MTPR, Higdon R, Richards DA, Silva MA, Murphy N, Kolker E, Mirza DF. Biomarker differences between cadaveric grafts used in human orthotopic liver transplantation as identified by coulometric electrochemical array detection (CEAD) metabolomics. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2015; 18:767-77. [PMID: 25353146 DOI: 10.1089/omi.2014.0094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Metabolomics in systems biology research unravels intracellular metabolic changes by high throughput methods, but such studies focusing on liver transplantation (LT) are limited. Microdialysate samples of liver grafts from donors after circulatory death (DCD; n=13) and brain death (DBD; n=27) during cold storage and post-reperfusion phase were analyzed through coulometric electrochemical array detection (CEAD) for identification of key metabolomics changes. Metabolite peak differences between the graft types at cold phase, post-reperfusion trends, and in failed allografts, were identified against reference chromatograms. In the cold phase, xanthine, uric acid, and kynurenine were overexpressed in DCD by 3-fold, and 3-nitrotyrosine (3-NT) and 4-hydroxy-3-methoxymandelic acid (HMMA) in DBD by 2-fold (p<0.05). In both grafts, homovanillic acid and methionine increased by 20%-30% with each 100 min increase in cold ischemia time (p<0.05). Uric acid expression was significantly different in DCD post-reperfusion. Failed allografts had overexpression of reduced glutathione and kynurenine (cold phase) and xanthine (post-reperfusion) (p<0.05). This differential expression of metabolites between graft types is a novel finding, meanwhile identification of overexpression of kynurenine in DCD grafts and in failed allografts is unique. Further studies should examine kynurenine as a potential biomarker predicting graft function, its causation, and actions on subsequent clinical outcomes.
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Affiliation(s)
- M Thamara P R Perera
- 1 The Liver Unit, Queen Elizabeth Hospital Birmingham , Edgbaston, Birmingham, United Kingdom
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Yi DH, Liu H, Chen Y, Li H, Xu T, Liu YF. Ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis. Mol Biol Rep 2014; 41:6611-8. [PMID: 25167853 DOI: 10.1007/s11033-014-3544-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 06/20/2014] [Indexed: 01/08/2023]
Abstract
This study aims to evaluate the ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis. A porcine model of cardiac death was established by the suffocation method. Metabolic indicators were monitored using the microdialysis technique during warm ischemia time (WIT) and cold ischemia time (CIT). Pathological changes in ischemic-injured livers were observed by haematoxylin-eosin staining. The predictive values of biochemical parameters regarding the liver donor were evaluated by receiver operating characteristic curve analysis. All statistical analyses were conducted using the SPSS 18.0 software (SPSS Inc, Chicago, Illinois, USA). The degree of warm ischemic injury of the livers increased with prolonged WIT. Serum glucose, glycerol, pyruvate, lactic acid levels and lactate-to-pyruvate (L/P) ratio increased gradually during WIT. Results from Pearson correlation analyses indicated that serum lactate level and L/P ratio were positively associated with the degree of warm ischemic injury of the livers. The degree of cold ischemic injury of the livers gradually increased after 12 h CIT. Serum glucose, lactic acid and L/P ratio achieved a peak after 6-8 h of CIT, but gradually decreased with prolonged CIT. The peak of glycerol occurred after 8 h of CIT, while no changes were found with prolonged CIT. Serum pyruvate level exhibited an increasing trend after 12 h CIT. Our results confirmed that serum glucose and lactate levels were negatively correlated with cold ischemic injury of the liver. However, serum glycerol and pyruvate levels showed positive correlations with cold ischemic injury of the liver. The liver donor was unavailable after 30 min WIT and 24 h CIT. The cut-off value of serum lactate level for warm ischemic injury of the livers was 2.374 with a sensitivity (Sen) of 90 % and specificity (Spe) of 95 %; while the L/P radio was 0.026 (Sen = 80 %, Spe = 83 %). In addition, the cut-off values of serum glucose, lactate, glycerol and pyruvate levels for cold ischemic injury of the livers were 0.339 (Sen = 100 %, Spe = 77 %), 1.172 (Sen = 100 %, Spe = 61 %), 56.359 (Sen = 100 %, Spe = 65 %) and 0.020 (Sen = 100 %, Spe = 67 %), respectively. Our findings provide empirical evidences that serum glucose, lactate levels and L/P ratio may be good indicators for the degree of warm ischemic injury of the livers after cardiac death; while serum glucose, lactate, glycerol and pyruvate levels may be important in predicting cold ischemic injury.
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Affiliation(s)
- De-Hui Yi
- Department of Transplantation and Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Nanjing Street No. 155, Heping District, Shenyang, 110001, People's Republic of China
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Micheli GD, Boero C, Carrara S. Implantable devices: the future of blood monitoring? ACTA ACUST UNITED AC 2013. [DOI: 10.2217/cpr.13.40] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pischke SE, Tronstad C, Holhjem L, Line PD, Haugaa H, Tønnessen TI. Hepatic and abdominal carbon dioxide measurements detect and distinguish hepatic artery occlusion and portal vein occlusion in pigs. Liver Transpl 2012; 18:1485-94. [PMID: 22961940 DOI: 10.1002/lt.23544] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 08/29/2012] [Indexed: 12/28/2022]
Abstract
Hepatic artery (HA) occlusion and portal vein (PV) occlusion are the most common vascular complications after liver transplantation with an impact on mortality and retransplantation rates. The detection of severe hypoperfusion may be delayed with currently available diagnostic tools. Hypoperfusion and anaerobically produced lactic acid lead to increases in tissue carbon dioxide. We investigated whether the continuous assessment of the intrahepatic and intra-abdominal partial pressure of carbon dioxide (PCO(2) ) could be used to detect and distinguish HA and PV occlusions in real time. In 13 pigs, the HA and the PV were fully occluded (n = 7) or gradually occluded (n = 6). PCO(2) was monitored intrahepatically and between loops of small intestine. The hepatic and intestinal metabolism was assessed with microdialysis and PV as well as hepatic vein blood samples, and the results were compared to clinical parameters for the systemic circulation and blood gas analysis. Total HA occlusion led to significant increases in hepatic PCO(2) and lactate, and this was accompanied by significant decreases in the partial pressure of oxygen and glucose. PV occlusion induced a significant increase in intestinal PCO(2) (but not hepatic PCO(2) ) along with significant increases in intestinal lactate and glycerol. Gradual HA occlusion and PV occlusion caused steady hepatic and intestinal PCO(2) increases, respectively. Systemic clinical parameters such as the blood pressure, heart rate, and cardiac output were affected only by PV occlusion. In conclusion, even gradual HA occlusion affects liver metabolism and can be reliably identified with hepatic PCO(2) measurements. Intestinal PCO(2) increases only during PV occlusion. A combination of hepatic and intestinal PCO(2) measurements can reliably diagnose the affected vessel and depict the severity of the occlusion, and this may emerge as a potential real-time clinical monitoring tool for the postoperative course of liver transplantation and enable early interventions.
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Affiliation(s)
- Soeren Erik Pischke
- Division of Emergencies and Critical Care, Department of Anesthesiology, Oslo University Hospital, Oslo, Norway
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Evaluating the effects of extended cold ischemia on interstitial metabolite in grafts in kidney transplantation using microdialysis. Langenbecks Arch Surg 2012; 398:87-97. [DOI: 10.1007/s00423-012-1010-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 09/18/2012] [Indexed: 10/27/2022]
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Bojko B, Cudjoe E, Gómez-Ríos GA, Gorynski K, Jiang R, Reyes-Garcés N, Risticevic S, Silva ÉA, Togunde O, Vuckovic D, Pawliszyn J. SPME – Quo vadis? Anal Chim Acta 2012; 750:132-51. [DOI: 10.1016/j.aca.2012.06.052] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/29/2012] [Accepted: 06/30/2012] [Indexed: 01/01/2023]
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Håugaa H, Thorgersen EB, Pharo A, Boberg KM, Foss A, Line PD, Sanengen T, Almaas R, Grindheim G, Pischke SE, Mollnes TE, Tønnessen TI. Early bedside detection of ischemia and rejection in liver transplants by microdialysis. Liver Transpl 2012; 18:839-49. [PMID: 22407878 DOI: 10.1002/lt.23425] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study was performed to explore whether lactate, pyruvate, glucose, and glycerol levels sampled via microdialysis catheters in the transplanted liver could be used to detect ischemia and/or rejection. The metabolites were measured at the bedside every 1 to 2 hours after the operation for a median of 10 days. Twelve grafts with biopsy-proven rejection and 9 grafts with ischemia were compared to a reference group of 39 grafts with uneventful courses. The median lactate level was significantly higher in both the ischemia group [5.8 mM (interquartile range = 4.0-11.1 mM)] and the rejection group [2.1 mM (interquartile range = 1.9-2.4 mM)] versus the reference group [1.5 mM (interquartile range = 1.1-1.9 mM), P < 0.001 for both]. The median pyruvate level was significantly increased only in the rejection group [185 μM (interquartile range = 155-206 μM)] versus the reference group [124 μM (interquartile range = 102-150 μM), P < 0.001], whereas the median lactate/pyruvate ratio and the median glycerol level were increased only in the ischemia group [66.1 (interquartile range = 23.9-156.7) and 138 μM (interquartile range = 26-260 μM)] versus the reference group [11.8 (interquartile range = 10.6-13.6), P < 0.001, and 9 μM (interquartile range = 9-24 μM), P = 0.002]. Ischemia was detected with 100% sensitivity and greater than 90% specificity when a positive test was repeated after 1 hour. In 3 cases of hepatic artery thrombosis, ischemia was detected despite normal blood lactate levels. Consecutive pathological measurements for 6 hours were used to diagnose rejection with greater than 80% sensitivity and specificity at a median of 4 days before the activity of alanine aminotransferase, the concentration of bilirubin in serum, or both increased. In conclusion, bedside measurements of intrahepatic lactate and pyruvate levels were used to detect ischemia and rejection earlier than current standard methods could. Discrimination from an uneventful patient course was achieved. Consequently, intrahepatic graft monitoring with microdialysis may lead to the earlier initiation of graft-saving treatment.
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Affiliation(s)
- Håkon Håugaa
- Division of Emergencies and Critical Care, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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Fonouni H, Esmaeilzadeh M, Jarahian P, Rad MT, Golriz M, Faridar A, Hafezi M, Jafarieh S, Kashfi A, Yazdi SHF, Soleimani M, Longerich T, Shevchenko M, Sakowitz O, Schmidt J, Mehrabi A. Early detection of metabolic changes using microdialysis during and after experimental kidney transplantation in a porcine model. Surg Innov 2012; 18:321-8. [PMID: 22308094 DOI: 10.1177/1553350610392063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Microdialysis (MD) can detect organ-related metabolic changes before they become measurable in plasma through the biochemical parameters. This study aims to evaluate the early detection of metabolic changes during experimental kidney transplantation (KTx). MATERIAL AND METHODS During preparation of 8 donor kidneys, one MD catheter was inserted in the renal cortex and samples were collected. After a 6-hour cold ischemia time (CIT), kidneys were implanted in the 8 recipient pigs. Throughout the warm ischemia time (WIT) and after reperfusion, kidneys were monitored. The interstitial glucose, lactate, pyruvate, glutamate, and glycerol concentrations were evaluated. RESULTS A significant decline in glucose level was observed at the end of CIT. The lactate level was reduced to the minimum point of 0.35 ± 0.08 mmol/L in CIT. After reperfusion, lactate values raised significantly. During the WIT, the pyruvate level increased, continued until the end of the WIT. For glutamate, a steady increase was noted during explantation, CIT, WIT, and early reperfusion phases. The increase of glycerol value continued in the early postreperfusion, which was then followed by a sharp decline. CONCLUSION MD is a fast and simple minimally invasive method for measurement of metabolic substrates in renal parenchyma during KTx. MD offers the option of detecting minor changes of interstitial glucose, lactate, pyruvate, glutamate, and glycerol in every stage of KTx. Through the use of MD, metabolic changes can be continuously monitored during the entire procedure of KTx.
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Affiliation(s)
- Hamidreza Fonouni
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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β-adrenoreceptor activation in brain, lung and adipose tissue, measured by microdialysis in pig. Adv Med Sci 2012; 57:136-41. [PMID: 22440939 DOI: 10.2478/v10039-012-0009-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE The aim of this study is to investigate the effect of local activation of β-adrenoreceptor by Isoprenaline on metabolism in brain, fat and lung measured by microdialysis. METHODS We used 8 healthy pigs under general anaesthesia and placed microdialysis catheters in brain, fat, lung and artery. We performed a direct measurement of glucose, lactate, pyruvate and glycerol. The stimulation was performed by one-hour infusion of Isoprenaline, a β-adrenoreceptor agonist. RESULTS The infusion of isoprenaline did not affect the glucose in any tissue. The levels of lactate (p=0.008) and pyruvate (p=0.011) decreased significantly in lung after isoprenaline infusion. There was a significant increase in L/P ratio in fat tissue (p=0.001) while no significant changes could be found in brain (p=0.086) and lung (p=0.679). The most pronounced and significant change was observed in glycerol in fat (p<0.001) that increased by 95%. CONCLUSION The prominent increase in glycerol in fat proved to be a good measure of β-adrenoreceptor activation and a measure of lipolysis. This can be used to online monitor β-adrenoreceptor activation by glycerol measurement in patients.
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WAELGAARD L, DAHL BM, KVARSTEIN G, TØNNESSEN TI. Tissue gas tensions and tissue metabolites for detection of organ hypoperfusion and ischemia. Acta Anaesthesiol Scand 2012; 56:200-9. [PMID: 22103593 DOI: 10.1111/j.1399-6576.2011.02572.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2011] [Indexed: 12/30/2022]
Abstract
BACKGROUND The aim of this study was to evaluate how tissue gas tensions and tissue metabolites measured in situ can detect hypoperfusion and differentiate between aerobic and anaerobic conditions during hemorrhagic shock. We hypothesized that tissue PCO(2) (PtCO(2)) would detect hypoperfusion also under aerobic conditions and detect anaerobic metabolism concomitantly with or earlier than other markers. METHODS Prospective experimental animal study with eight anesthetized pigs subjected to a continuous blood loss ∼8% of total blood volume per hour until death. We measured cardiac index, organ blood flows, and tissue levels of PO(2), PCO(2), glucose, pyruvate, lactate, and glycerol in intestine, liver, kidney, and skeletal muscle. RESULTS With reduction in blood flow to the organs under aerobic conditions, PtCO(2) increased ∼1-4 kPa from baseline. With the onset of tissue hypoxia there was a pronounced increase of PtCO(2), lactate, lactate-pyruvate (LP) ratio, and glycerol. Tissue pH and bicarbonate decreased significantly, indicating that metabolic acid was buffered by bicarbonate to generate CO(2). CONCLUSION Moderate tissue hypoperfusion under aerobic conditions is associated with increased PtCO(2), in contrast to metabolic parameters of ischemia (lactate, LP ratio, and glycerol) which remain low. From the onset of ischemia there is a much more rapid and pronounced increase in PtCO(2), lactate, and LP ratio. PtCO(2) can be used as a marker of hypoperfusion under both aerobic and anaerobic conditions; it gives an earlier warning of hypoperfusion than metabolic markers and increases concomitantly with or earlier than other markers at the onset of tissue anaerobiosis.
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Affiliation(s)
- L. WAELGAARD
- The Acute Clinic; Department of Anesthesiology and Critical Care Medicine; Oslo University Hospital; Oslo; Norway
| | - B. M. DAHL
- The Intervention Centre; Oslo University Hospital; Oslo; Norway
| | - G. KVARSTEIN
- The Acute Clinic; Department of Anesthesiology and Critical Care Medicine; Oslo University Hospital; Oslo; Norway
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Isaksson B, D'souza MA, Jersenius U, Ungerstedt J, Lundell L, Permert J, Björnstedt M, Nowak G. Continuous Assessment of Intrahepatic Metabolism by Microdialysis During and After Portal Triad Clamping. J Surg Res 2011; 169:214-9. [DOI: 10.1016/j.jss.2009.11.720] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2009] [Revised: 10/01/2009] [Accepted: 11/19/2009] [Indexed: 11/29/2022]
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Dong J, Chen Q, Rong C, Li D, Rao Y. Minimally Invasive Surface-Enhanced Raman Scattering Detection with Depth Profiles Based on a Surface-Enhanced Raman Scattering-Active Acupuncture Needle. Anal Chem 2011; 83:6191-5. [DOI: 10.1021/ac2007009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Dong
- State Key Laboratory of Bioelectronics, Southeast University, 210096, Nanjing, China
- Laboratory of Environment and Biosafety, Research Institute of Southeast University in Suzhou, 215123, Suzhou, China
| | - Qingfeng Chen
- State Key Laboratory of Bioelectronics, Southeast University, 210096, Nanjing, China
| | - Chunhui Rong
- State Key Laboratory of Bioelectronics, Southeast University, 210096, Nanjing, China
| | - Danyang Li
- State Key Laboratory of Bioelectronics, Southeast University, 210096, Nanjing, China
| | - Yanying Rao
- State Key Laboratory of Bioelectronics, Southeast University, 210096, Nanjing, China
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Fonouni H, Tahmasbi Rad M, Golriz M, Faridar A, Esmaeilzadeh M, Jarahian P, Hafezi M, Jafarieh S, Macher-Goeppinger S, Longerich T, Orakcioglu B, Sakowitz O, Schmidt J, Mehrabi A. Using microdialysis for early detection of vascular thrombosis after kidney transplantation in an experimental porcine model. Nephrol Dial Transplant 2011; 27:541-7. [PMID: 21719714 DOI: 10.1093/ndt/gfr308] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND In kidney transplantation (KTx), vascular thrombosis has a major impact on morbidity and graft survival. The ischaemia, caused by thrombosis, can lead to interstitial metabolite changes. The aim of this experimental study was to create conditions in which the graft would be prone to vascular thrombosis following KTx and then to evaluate the role of microdialysis (MD) for its early detection. METHODS Sixteen randomized pigs in the control group received heparin and immunosuppressive drugs, while the case group received none. Based on histopathological evidence of vascular thrombosis, the case group was subdivided into mildly and severely congested subgroups. Using MD, we evaluated the interstitial concentrations of glucose, lactate to pyruvate ratio, glutamate and glycerol in the transplanted grafts during different phases of KTx. RESULTS Following reperfusion, we noted considerable changes. The severely congested subgroup showed a low and decreasing level of glucose. Only in this group did the lactate to pyruvate ratio continue to increase until the end of monitoring. The glycerol level increased continuously in the entire case group and this increase was most significant in the severely congested subgroup. In all of the study groups, glutamate concentration remained in a low steady state until the end of monitoring. CONCLUSION MD can be an appropriate method for early detection of vascular complications after KTx. Decreasing glucose levels, increased lactate to pyruvate ratio and increased glycerol levels are appropriate indicators for early detection of vascular thromboses following KTx. Particularly, the glycerol level could predict the necessity and urgency of intervention needed to ultimately save the transplanted kidney.
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Affiliation(s)
- Hamidreza Fonouni
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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Yatabe T, Kitagawa H, Kawano T, Munekage M, Okabayashi T, Yamashita K, Hanazaki K, Yokoyama M. Continuous monitoring of glucose levels in the hepatic vein and systemic circulation during the Pringle maneuver in beagles. J Artif Organs 2011; 14:232-7. [PMID: 21626098 DOI: 10.1007/s10047-011-0574-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 05/11/2011] [Indexed: 01/04/2023]
Abstract
Intraoperative continuous glucose monitoring revealed that liver ischemia/reperfusion causes a rapid and profound transition in glucose concentration. We hypothesized that the washout of the glucose stored in the liver leads to a rapid transition in blood glucose concentration. Six female beagles were studied. A portosystemic shunt was established, and the glucose levels in the jugular, hepatic, and portal veins were continuously monitored. All beagles were stabilized for 30 min, and, subsequently, the hepatic artery and portal vein were clamped (the Pringle maneuver). After 30 min of warm hepatic ischemia, the clamp was removed in order to initiate hepatic reperfusion. The endpoint of the experiment was 60 min after the onset of reperfusion. The glucose levels in the abovementioned veins were recorded continuously. The glucose level in the hepatic vein increased 10 min after the start of the Pringle maneuver and was significantly higher than that in the jugular vein and portal vein just before unclamping. The glucose level in the hepatic vein peaked at 2 min after unclamping and that in the portal and jugular veins started to increase after reperfusion. The glucose level in the hepatic vein was significantly higher than that in the jugular and portal veins between 9 min after clamping and 8 min after reperfusion. In conclusion, our study among beagles showed that glucose release from the hepatic vein and sinusoid leads to a rapid elevation in systemic blood glucose levels after liver ischemia/reperfusion. This knowledge might help in the development of new strategies for blood glucose management during hepatectomy.
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Affiliation(s)
- Tomoaki Yatabe
- Department of Anesthesiology and Critical Care Medicine, Kochi Medical School, Kohasu Oko-cho, Nankoku, Kochi, Japan.
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Yatabe T, Yokoyama T, Yamashita K, Okabayashi T, Hanazaki K. Increase in blood glucose with the start of the reperfusion after large vessel surgery. Anesth Analg 2009; 109:684. [PMID: 19608850 DOI: 10.1213/ane.0b013e3181a96456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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