title: Oxygenated machine perfusion preservation of predamaged kidneys with HTK and Belzer machine perfusion solution: an experimental study in pigs.
abstract: The objective of the present study was to evaluate the recently proposed aerobic machine preservation with the noncolloidal HTK solution by comparison with the colloidal Belzer machine perfusion solution (MPS) after procurement of marginal kidneys from non-heart-beating donors. Kidneys were harvested 40 minutes after cardiac arrest in German Landrace pigs and subjected to 18 hours of oxygenated hypothermic machine perfusion with either Belzer MPS or modified HTK via the renal artery (Psys < 40 mm Hg). During machine perfusion transrenal flow was approximatively twofold higher and calculated oxygen uptake was increased by 30% using the colloidal Belzer MPS, but overall enzyme release was comparable in both groups. After heterotopic transpantation with bilateral nephrectomy of the recipient, there were no differences with respect to initial tissue perfusion in vivo (evaluated by laser Doppler flowmetry) as well as urine production and median serum levels of urea or creatinine over 1 week of follow-up between grafts perfused with HTK or Belzer MPS. In conclusion, provision of oxygen during storage is possible by low-flow perfusion with HTK as with Belzer MPS.
authors.affiliation: Division of Surgical Research, University Hospital of Bonn, Sigmund Freud Strasse 25, 53127 Bonn, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Manekeller
authors.forename: H
authors.initials: H
authors.lastname: Leuvenink
authors.forename: M
authors.initials: M
authors.lastname: Sitzia
authors.forename: T
authors.initials: T
authors.lastname: Minor
mesh_terms: D000241:Adenosine; D000493:Allopurinol; D000818:Animals; D005947:Glucose; D005978:Glutathione; D006323:Heart Arrest; D066298:In Vitro Techniques; D007328:Insulin; D007668:Kidney / Q000473:pathology; D007677:Kidney Function Tests; D008353:Mannitol; D023421:Models, Animal; D009926:Organ Preservation / Q000379:methods*; D019188:Organ Preservation Solutions; D010477:Perfusion; D011189:Potassium Chloride; D011343:Procaine; D011887:Raffinose; D013552:Swine
chemical_list: C039984:Bretschneider cardioplegic solution; D007328:Insulin; D019188:Organ Preservation Solutions; C055206:University of Wisconsin-lactobionate solution; D008353:Mannitol; D011343:Procaine; D000493:Allopurinol; D011189:Potassium Chloride; D005978:Glutathione; D005947:Glucose; D000241:Adenosine; D011887:Raffinose