Post-operative Aspirin in preventing early renal allograft thrombosis: A meta-analysis

@#BACKGROUND: Kidney transplantation (KT) remains to be the preferred mode of renal replacement therapy as it offers the best clinical outcomes, a better quality of life, and lesser complications compared to dialysis. However, KT still carries a number of complications, one of which is graft thrombosis. Despite advancements in treatment, graft thrombosis is still an important cause of early graft loss. Prevention therefore, is of significance. A growing number of evidence suggests that low-dose aspirin has a role in the primary prevention of allograft thrombosis. RESEARCH QUESTION: Among renal transplant recipients, does postoperative aspirin prevent early renal allograft thrombosis? OBJECTIVE: To conduct a meta-analysis to determine the effect of postoperative aspirin on preventing renal allograft thrombosis. METHODS: A systematic search of PubMed, Google Scholar, CENTRAL, and clinicaltrials.gov was done by two independent authors. All randomized and non-randomized studies determining the effect of postoperative aspirin on renal vein/allograft thrombosis were reviewed for eligibility and quality assessment. Studies on both adult and pediatric kidney transplant recipients were included. RESULTS: Five non-randomized cohort studies (3 in adults, 2 in children) with a total of 2,393 patients were included. Using the Newcastle-Ottawa scale, two studies were found to have good quality, while three had poor quality. In a fixed-effects meta-analysis, aspirin was associated with a reduced risk for renal allograft thrombosis in adults (RR 0.13; 95% CI 0.06, 0.28;I2 22%) and children (RR 0.11; 95% CI 0.03, 0.40; I2 0%). CONCLUSION: Post-operative aspirin was associated with reduced risk for renal allograft thrombosis in both adults and children. However, the best available evidence is limited to observational studies. A well-designed randomized controlled trial is needed to confirm this finding.

The role of L-ornithine-L-aspartate in the management of minimal hepatic encephalopathy among patients with liver cirrhosis: A systemic review and meta-analysis

@#<p style="text-align: justify;"><b>OBJECTIVE:</b> To evaluate the efficacy of L-ornithine-L-aspartate (LOLA) in improving minimal hepatic encephalopathy in adult patients with liver cirrhosis.</p><p style="text-align: justify;"><b>METHODS:</b> A search in PubMed, Cochrane Library, Google Scholar, and Medline was made obtaining four qualified randomized controlled trials. Studies included adult cirrhotic patients with minimal hepatic encephalopathy measured by the number connection test (NCT-A, B), figure connection test (FCT-A, B), picture completion, block design test, and critical flicker frequency (CFF) testing with a cut-off score of</p><p style="text-align: justify;"><strong>RESULTS:</strong> Of the 29 studies identified, 4 fulfilled the inclusion criteria, which entailed analysis of 238 participants (LOLA: 116, Control: 122). Three out of the four studies were used in meta-analysis and one study was analyzed separately due to a difference in the neuropsychometric measure. The meta-analysis favored the experimental group (LOLA), with a mean difference of 2.29 (95% CI 0.72 - 3.86), p-value = 0.004, and an I2 of 18%.</p><p style="text-align: justify;"><strong>CONCLUSION:</strong> LOLA provided great potential in managing encephalopathy since treating earlier related to better survival and prevention of disease progression. The results of our study supported such evidence and its use may be encouraged.</p>