Ipsilateral versus contralateral placement of the pancreas allograft in pancreas after kidney transplant recipients

Pancreatic transplant surgery and stem cell therapy: Finding the balance between therapeutic advances and ethical principles

The latest achievements in the field of pancreas transplantation and stem cell therapy require an effort by the scientific community to clarify the ethical implications of pioneering treatments, often characterized by high complexity from a surgical point of view, due to transplantation of multiple organs at the same time or at different times, and from an immunological point of view for stem cell therapy. The fundamental value in the field of organ transplants is, of course, a solidarity principle, namely that of protecting the health and life of people for whom transplantation is a condition of functional recovery, or even of survival. The nature of this value is that of a concept to which the legal discipline of transplants entrusts its own ethical dignity and for which it has ensured a constitutional recognition in different systems. The general principle of respect for human life, both of the donor and of the recipient, evokes the need not to put oneself and one’s neighbor in dangerous conditions. The present ethical reflection aims to find a balance between the latest therapeutic advances and several concepts including the idea of the person, the respect due to the dead, the voluntary nature of the donation and the consent to the same, the gratuitousness of the donation, the scientific progress and the development of surgical techniques, and the policies of health promotion.

Association of human leukocyte antigen mismatches between donor-recipient and donor-donor in pancreas after kidney transplant recipients

The effects of HLA mismatching on pancreas outcomes among pancreas after kidney (PAK) recipients are undefined. Outcomes might potentially differ depending on whether there is a mismatch between pancreas donor and recipient (PD-R) or pancreas donor and kidney donor(PD-KD). All primary PAK at our centre were included in this study. Patients were divided into two groups based on the degree of HLA mismatching: low (L-MM) as 0-4 and high (H-MM) as 5-6. We analysed all (N = 73) PAK for PD-R mismatch and the subset of PAK for PD-KD mismatch (N = 71). Comparing PD-R L-MM (n = 39) and H-MM (n = 34) PAKs, we observed no difference in the rate of pancreas graft failure. There was also no difference in the rate of rejection (L-MM 33% vs. H-MM 41%) or the severity of rejection. However, we observed a significantly (P < 0.01) shorter time to acute pancreas rejection in the H-MM group (6.8 ± 8.7 mo) versus the L-MM cohort (29.0 ± 36.2 mo) (P < 0.001). Similar to the PD-R mismatched cohort, we did not observe a detrimental effect of HLA mismatching on graft outcomes in the PD-KD cohort; time to rejection was again shorter in the H-MM subset. In this study, we found no impact of HLA mismatch on either pancreas graft survival or rejection rates, though rejection occurred earlier in high mismatched PAK transplants.

Working towards an ERAS Protocol for Pancreatic Transplantation: A Narrative Review

Enhanced recovery after surgery (ERAS) initially started in the early 2000s as a series of protocols to improve the perioperative care of surgical patients. They aimed to increase patient satisfaction while reducing postoperative complications and postoperative length of stay. Despite these protocols being widely adopted in many fields of surgery, they are yet to be adopted in pancreatic transplantation: a high-risk surgery with often prolonged length of postoperative stay and high rate of complications. We have analysed the literature in pancreatic and transplantation surgery to identify the necessary preoperative, intra-operative and postoperative components of an ERAS pathway in pancreas transplantation.

Comparison of Ipsilateral and Contralateral Simultaneous Pancreas and Kidney Transplantation: A Single-Center Analysis with 5-Year Outcome

Background

It is routine to implant the pancreas on the right and the renal graft on the left iliac fossa during a simultaneous kidney and pancreas transplant (cSPK). Ipsilateral placement of both organs on the same side raises concerns that the pancreas graft might compromise the distally placed kidney. However, ipsilateral SPK (iSPK) can be faster than the conventional contralateral graft placement and allows for preservation of the other side for future transplants.

Material/Methods

In a single unit, 67 SPK transplantations (cSPK n=49, iSPK n=18) were performed from 2008 to 2011. The decision for graft placement was made during the procedure. Donor and recipient demographics, surgical complications, reoperations, surgical time, and patient and graft survival with 5-year follow-up were compared between the 2 groups.

Results

Duration of operation was shorter in the iSPK group. Recipient and donor demographics were comparable, apart from more females receiving ipsilateral graft placement. The broader female pelvis was probably the determining factor contributing to this outcome. The iSPK group included marginally younger recipients. The ipsilateral group also demonstrated a trend to improved survival of patient, pancreas, and kidney graft, at 1- and 5-year follow-up. There was no difference in complication rates between the 2 groups.

Conclusions

There were no significant differences in overall outcomes. iSPK is a safe procedure, which proves similar patient and graft survival as with cSPK. Both procedures have comparable surgical complication rates. iSPK is a safe and quicker procedure that allows for preservation of the contralateral side for potential subsequent transplants.