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Ng PK, Yoeli D, Huang JL, Luo Y, Wang Y, Li B, Wang Z, Schold J, Jain S, Su AJA, Mathes DW, Washington KM, Farkash E, Jani AH, Huang CA. Successful Extension of Vascularized Composite Allograft Perfusion Cold Storage to 24 h in a Rat Hindlimb Transplant Model. Transplant Direct 2024; 10:e1623. [PMID: 38757052 PMCID: PMC11098188 DOI: 10.1097/txd.0000000000001623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/26/2024] [Accepted: 01/30/2024] [Indexed: 05/18/2024] Open
Abstract
Background Vascularized composite allograft transplantation is a treatment option for complex tissue injuries; however, ischemia reperfusion injury and high acute rejection rates remain a challenge. Hypothermic machine perfusion using acellular storage perfusate is a potential solution. This study evaluated the University of Wisconsin Kidney Preservation Solution-1 (KPS-1) compared with normal saline (NS) for preservation of donor rat hindlimbs subjected to 24 h of ex vivo perfusion cold storage. Methods Hindlimbs were subjected to 24-h perfusion cold storage with heparinized KPS-1 (n = 6) or heparinized NS (n = 6). Flow, resistance, and pH were measured continuously. At the end of the 24-h period, tissue was collected for histological analysis of edema and apoptosis. Results KPS-1 perfused limbs showed significantly less edema than the NS group, as evidenced by lower limb weight gain (P < 0.001) and less interfascicular space (P < 0.001). KPS-perfused muscle had significantly less cell death than NS-perfused muscle based on terminal deoxynucleotidyl transferase dUTP nick-end labeling (P < 0.001) and cleaved caspase-3 staining (P = 0.045). During hypothermic machine perfusion, a significant decrease in pH over time was detected in both groups, with a significantly greater decline in pH in the KPS-1 group than in the NS group. There were no significant differences overall and over time in flow rate or vascular resistance between the KPS and NS groups. Conclusions Perfusion with KPS-1 can successfully extend vascularized composite allograft perfusion cold storage for 24 h in a rat hindlimb model without significant edema or cell death.
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Affiliation(s)
- Po’okela K. Ng
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Dor Yoeli
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Joy L. Huang
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Yuhuan Luo
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Yong Wang
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Bing Li
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Zhaohui Wang
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Jesse Schold
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Swati Jain
- Department of Medicine, University of Colorado Anschutz Medical Campus , Aurora, CO
| | - An-Jey A. Su
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - David W. Mathes
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Kia M. Washington
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Evan Farkash
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI
| | - Alkesh H. Jani
- Department of Medicine, University of Colorado Anschutz Medical Campus , Aurora, CO
| | - Christene A. Huang
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO
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Meltzer AZ, Fintha A, Cseprekál O, Somogyi D, Szabó J, Kóbori L, Rózsa B, Piros L, Huszty G. Graft Arterial Dissection and Thrombosis After Kidney Transplantation With Undiagnosed Fibromuscular Dysplasia From a Deceased Donor: Case Report and Review. Transplant Proc 2022; 54:2603-2607. [DOI: 10.1016/j.transproceed.2022.10.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Dynamic Parameters of Hypothermic Machine Perfusion-An Image of Initial Graft Function in Adult Kidney Transplantation? J Clin Med 2022; 11:jcm11195698. [PMID: 36233566 PMCID: PMC9571023 DOI: 10.3390/jcm11195698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 11/16/2022] Open
Abstract
Kidney allografts are subjected to ischemia reperfusion injury during the process of transplantation. Hypothermic machine perfusion (HMP) of deceased donor kidneys from organ procurement until transplantation is associated with a superior outcome when compared to static cold storage (SCS). Nevertheless, cold ischemia time (CIT) remains an independent risk factor for delayed graft function (DGF) in HMP-preserved kidney allografts as well. We performed a retrospective single-center study including all adult recipients who underwent deceased donor kidney-only transplantation at our center between January 2019 and December 2020. Beside the clinicopathological donor and recipient data, flow and resistance data during HMP were assessed. Short- and long-term kidney allograft outcome after end-ischemic HMP and SCS were analyzed and compared. Organ preservation consisted of either SCS (n = 88) or HMP (n = 45). There were no differences in recipient demographics and donor details between groups. CIT was significantly longer in the HMP group (16.5 [8.5−28.5] vs. 11.3 [5.4−24.1], p < 0.0001). The incidence of DGF as well as serum creatinine at discharge and at 1 year post transplant were comparable between groups. Duration of SCS prior to HMP was comparable among grafts with and without DGF. Flow rate and organ resistance at the start of HMP were significantly worse in DGF-kidney grafts (arterial flow 22.50 [18.00−48.00] vs. 51.83 [25.50−92.67] ml/min, p = 0.0256; organ resistance 123.33 [57.67−165.50] vs. 51.33 [28.17−111.50] mmHg/mL/min, p = 0.0050). Recipients with DGF had significantly worse creatinine levels at discharge (2.54 [1.08−7.64] vs. 1.67 [0.90−6.56], p < 0.0001) and at 1 year post transplant (1.80 [1.09−7.95] vs. 1.59 [0.87−7.40], p = 0.0105). In conclusion, baseline HMP parameters could be applied as a predictive tool for initial graft function, which in turn determines long-term outcome.
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Pravisani R, Baccarani U, Molinari E, Cherchi V, Bacchetti S, Terrosu G, Avital I, Ekser B, Adani GL. PO 2 21% oxygenated hypothermic machine perfusion in kidney transplantation: Any clinical benefit? Int J Artif Organs 2022; 45:666-671. [PMID: 35751368 DOI: 10.1177/03913988221107946] [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
BACKGROUND In deceased donor kidney transplantation (KT), the use of hypothermic machine perfusion (HMP) has been acquiring the status of best practice in the pre-transplant management of kidney grafts. Two types of HMP are currently available, oxygenated HMP and non-oxygenated HMP. However, data on the real clinical impact of oxygenation on KT outcome are still heterogeneous. METHODS Retrospective study on a cohort of 103 patients transplanted with a single kidney graft that was managed either with end-ischemic oxygenated (O2 group, Waves Machine, n = 51, 49.5%) or non-oxygenated HMP (no-O2 group, Life Port Kidney Transporter Machine, n = 52, 50.5%), during the period January 2016-December 2020. Oxygenation was performed at pO2 21%. RESULTS The median cold ischemia time was 29 h:40 min [IQR 26 h:55 min-31 h:10 min] and the prevalence of grafts from extended criteria donors (ECD) was 46.7%, with a median kidney donor profile index (KDPI) of 72 [41-94]. The study groups were homogeneous in terms of recipient characteristics, ischemia times and donor characteristics. O2 and no-O2 groups showed comparable outcomes in terms of delayed graft function (O2 vs no-O2, 21.5% vs 25%, p = 0.58), vascular (0.2% vs 0.2%, p > 0.99) and urologic (13.7% vs 11.5%, p = 0.77) complications, and episodes of graft rejection (11.7% vs 7.7%, p = 0.52). At 1 year follow up, even creatinine serum levels were comparable between the groups (1.27 mg/dL [1.09 and 1.67] vs 1.4 mg/dL [1.9-1.78], p = 0.319), with similar post-transplant trend (p = 0.870). No significant benefit was either observed in ECD or KDPI > 60 subgroups, respectively. CONCLUSIONS Oxygenation at pO2 21% during HMP seems not to significantly enhance the KT outcomes in terms of postoperative complications or graft function.
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Affiliation(s)
- Riccardo Pravisani
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Umberto Baccarani
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Elena Molinari
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Vittorio Cherchi
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Stefano Bacchetti
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Giovanni Terrosu
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
| | - Itzhak Avital
- Department of Surgery A, Soroka University Medical Center, Beer Sheva, Israel
| | - Burcin Ekser
- Division of Transplant Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Gian Luigi Adani
- Liver-Kidney Transplantation Unit, Department of Medicine, University of Udine, Udine, Italy
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A Review of Current and Emerging Trends in Donor Graft-Quality Assessment Techniques. J Clin Med 2022; 11:jcm11030487. [PMID: 35159939 PMCID: PMC8836899 DOI: 10.3390/jcm11030487] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
The number of patients placed on kidney transplant waiting lists is rapidly increasing, resulting in a growing gap between organ demand and the availability of kidneys for transplantation. This organ shortage has forced medical professionals to utilize marginal kidneys from expanded criteria donors (ECD) to broaden the donor pool and shorten wait times for patients with end-stage renal disease. However, recipients of ECD kidney grafts tend to have worse outcomes compared to those receiving organs from standard criteria donors (SCD), specifically increased risks of delayed graft function (DGF) and primary nonfunction incidence. Thus, representative methods for graft-quality assessment are strongly needed, especially for ECDs. Currently, graft-quality evaluation is limited to interpreting the donor’s recent laboratory tests, clinical risk scores, the visual evaluation of the organ, and, in some cases, a biopsy and perfusion parameters. The last few years have seen the emergence of many new technologies designed to examine organ function, including new imaging techniques, transcriptomics, genomics, proteomics, metabolomics, lipidomics, and new solutions in organ perfusion, which has enabled a deeper understanding of the complex mechanisms associated with ischemia-reperfusion injury (IRI), inflammatory process, and graft rejection. This review summarizes and assesses the strengths and weaknesses of current conventional diagnostic methods and a wide range of new potential strategies (from the last five years) with respect to donor graft-quality assessment, the identification of IRI, perfusion control, and the prediction of DGF.
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Adani GL, Pravisani R, Tulissi P, Isola M, Calini G, Terrosu G, Boscutti G, Avital I, Ekser B, Baccarani U. Hypothermic machine perfusion can safely prolong cold ischemia time in deceased donor kidney transplantation. A retrospective analysis on postoperative morbidity and graft function. Artif Organs 2021; 45:516-523. [PMID: 33210745 DOI: 10.1111/aor.13858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/29/2020] [Accepted: 11/02/2020] [Indexed: 12/16/2022]
Abstract
In deceased donor kidney transplantation (KT), a prolonged cold ischemia time (CIT) is a negative prognostic factor for KT outcome, and the efficacy of hypothermic machine perfusion (HMP) in prolonging CIT without any additional hazard is highly debated. We conducted a retrospective study on a cohort of 154 single graft deceased donor KTs, in which a delayed HMP, after a preliminary period of static cold storage (SCS), was used to prolong CIT for logistic reasons. Primary outcomes were postoperative complications as well as 1 year graft survival and function. 73 cases (47.4%) were managed with HMP and planned KT, while 81 (52.6%) with SCS and urgent KT. The median CIT in HMP group and SCS group was 29 hour:57 minutes [27-31 hour:45 minutes] and 11 hour:25 minutes [9-14 hour:30 minutes], respectively (P < .001). The period of SCS in the HMP group was significantly shorter than in the SCS group (10 vs. 11 hour:25 minutes, P = .02) as well as the prevalence of expanded criteria donors was significantly higher (43.8% vs. 18.5%, P < .01). After propensity score matching for these two baseline characteristics, the HMP and SCS groups showed comparable outcomes in terms of delayed graft function, vascular, and urologic complications, infections, and episodes of graft rejection. At 1 year follow-up, serum creatinine levels were comparable between the groups. Therefore, the use of HMP to prolong the CIT and convert KT into a planned procedure seemed to have an adequate safety profile, with outcomes comparable to KT managed as an urgent procedure and a CIT nearly three time shorter.
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Affiliation(s)
- Gian Luigi Adani
- Liver-Kidney Transplantation Unit - Department of Medicine, University of Udine, Udine, Italy
| | - Riccardo Pravisani
- Liver-Kidney Transplantation Unit - Department of Medicine, University of Udine, Udine, Italy
| | | | - Miriam Isola
- Division of Medical Statistic - Department of Medicine, University of Udine, Udine, Italy
| | - Giacomo Calini
- Liver-Kidney Transplantation Unit - Department of Medicine, University of Udine, Udine, Italy
| | - Giovanni Terrosu
- Liver-Kidney Transplantation Unit - Department of Medicine, University of Udine, Udine, Italy
| | | | - Itzhak Avital
- Department of Surgery A, Soroka University Medical Center, Beer Sheva, Israel
| | - Burcin Ekser
- Division of Transplant Surgery - Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Umberto Baccarani
- Liver-Kidney Transplantation Unit - Department of Medicine, University of Udine, Udine, Italy
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