Living donor kidney transplantation after desensitization in cross-match positive high sensitized patients

BACKGROUND

We aimed to evaluate the long-term results of the patients who had positive cross-match (XM) test results and underwent living donor renal transplantation after desensitization with different combinations of intravenous immunoglobulin (IVIG), plasmapheresis (PP), and rituximab.

MATERIAL AND METHODS

Forty-nine patients who were positive for complement-dependent cytotoxicity (CDC), flow cytometric (FC), and Luminex-XM test were included in the study. Renal transplantation was performed in 16 patients who had XM (-) test after desensitization with different combinations of IVIG (n =15), PP (n =13), and rituximab (n =10). Anti-human leukocyte antigens (HLA) antibodies (anti-HLA Abs) were detected by the Luminex single antigen bead assay. Anti-thymocyte globulin was used for induction, and tacrolimus, mycophenolic acid, and prednisolone were used for maintenance therapy. Also, we evaluated the relationship between different donor-specific anti-HLA Abs and the parameters mentioned above.

RESULTS

Antibody-mediated rejection (AMR) and acute T cell-mediated rejection rates were 18.8 % and 6.3 %, respectively. Graft survival rates at the first, third, and fifth years post-transplantation were 93.8 %, 85.2 %, and 85.2 %, respectively, and the patients' survival rates were found to be 100 %. Serum creatinine level and glomerular filtration rate were 1.5 ± 1.2 mg/dl and 69.9 ± 30.4 ml/min, respectively. The mean follow-up time was 39 ± 24 months.

CONCLUSIONS

Our study showed that kidney transplantation could be performed by effective desensitization in XM test positive patients. It was also shown that donor-specific anti-HLA DQ Ab and non-HLA Ab determination might be useful in diagnosing patients with positive cross-test and/or diagnosis of AMR. HIPPOKRATIA 2020, 24(4): 182-190.

Renoportal anastomosis in living donor liver transplantation

BACKGROUND

 In advanced cirrhotic patients, extensive mesenteric vein thrombosis extends the operative time, causes peri- and postoperative complications, and increases the mortality and morbidity in liver transplantation (LT). The anastomosis between the left renal vein and graft portal vein is one of the crucial options in such patients. However, especially in living donor liver transplantation (LDLT) practice, limited cases are published in the literature.

CASE REPORT

A thirty-seven years old female patient with hepatitis B virus (HBV) associated liver cirrhosis underwent LDLT. Her body mass index, graft weight, and graft-recipient weight ratio (GRWR) were noted 19.3 kg/m², 990 g, and 1.9 %, respectively. During the surgical procedure, she had renoportal anastomosis (RPA) due to extensive portal vein thrombosis to provide an efficient portal inflow to the transplanted graft. No complication was observed in the early postoperative period, and the one year follow up passed without any problem.

CONCLUSIONS

In LT, for providing efficient portal flow to the graft, the RPAs should be considered as an option in case of extensive splanchnic vein thrombosis and large splenorenal shunt. Ensuring that graft volume is close to the recipient standard liver volume, RPA can be performed safely and effectively in LDLT as an acceptable and life-saving procedure. HIPPOKRATIA 2019, 23(3): 140-142.

The effects of thiamine and thiamine pyrophosphate on alcohol-induced hepatic damage biomarkers in rats

OBJECTIVE

This study examined the effects of thiamine and thiamine pyrophosphate on oxidative damage developing in association with hepatic injury caused by alcohol toxicity in rats and on hepatic injury markers.

MATERIALS AND METHODS

Four groups of rats were used; control, a group receiving thiamine+ethanol, a group receiving thiamine pyrophosphate+ethanol and a healthy group. The experimental protocol was repeated over 30 days. Malondialdehyde, glutathione and DNA damage product levels in liver tissue were measured at the end of the study. Alanine amino transferase and aspartate amino transferase, markers of liver damage, levels were determined. The results were then compared among the groups.

RESULTS

A statistically significant difference between antioxidant markers and markers of liver damage was determined between the group given thiamine pyrophosphate ethanol and the group given ethanol alone (p < 0.01) No statistically significant difference was observed between the group given thiamine and ethanol and the group given ethanol alone (p > 0.01).

CONCLUSIONS

Our results suggest that thiamine pyrophosphate may have a protective effect against liver damage caused by alcohol toxicity.

Comparison of total thyroidectomy, bilateral subtotal thyroidectomy and Dunhill operations in the treatment of benign thyroid disorders

AIM

The surgical treatment of benign thyroid disease is still controversial. Many treatment modalities have been described for the surgical management of various thyroid diseases, including excision, bilateral subtotal thyroidectomy (BST), near-total thyroidectomy, and total thyroidectomy (TT).

METHODS

Hospital records were reviewed for 2863 patients who underwent thyroid surgery for presumed multinodular goiter (MNG) between 1990 and 2009. However, due to the inefficiency of the hospital archive system, we were able to access detailed personal and surgical information for only 803 patients.

RESULTS

Of the 803 patients, 227 (28.3%) underwent DP, 228 (28.4%) BST and 348 (43.3%) TT operations. While there were no complications in 683 (85.1%) of the 803 operations, complications developed with 120 (14.9%). A definite difference between TT and the other (BST and DP) types of operation in relation to complications. The duration of hospital stay was 2.2±0.4 days for the BST group, 2.2 ± 0.4 days for the DP group and 2.3 ± 0.7 days for the TT group. There was a significant difference among all three groups. Recurrence rates of the operations performed were 35 (15.3%), 20 (8.8%) and 4 (1.15%), respectively, for BST, DP and TT. There was significant difference between the recurrence rates of TT and BST, and between TT and DP.

CONCLUSION

When the frequency of complications in recurrent operations and the malignity possibility of the thyroid tissue left behind are taken into consideration, we believe that TT will be more beneficial in the surgical treatment of benign thyroid disorders.

An autosomal recessive adducted thumb-club foot syndrome observed in Turkish cousins

Male and female cousins, the offspring of consanguineous Turkish parents, have been affected by a hitherto unreported combination of problems comprising moderate to severe psychomotor developmental delay, ocular anterior chamber abnormality, facial dysmorphisms (broad, bossed forehead, late-closing fontanelle, telecanthus, downslanting palpebral fissures, posteriorly rotated ears, downturned angles of mouth), arachnodactyly and distal arthrogryposis with severely adducted thumbs and club feet. This striking phenotype has some similarities with the multiple pterygium syndrome (Escobar syndrome), but it most likely represents a distinct condition caused by an autosomal recessive gene defect.