A rare case of severe tricuspid regurgitation caused by TIPS stent migrating into the right atrium.

BACKGROUND: Transjugular intrahepatic portosystemic shunt (TIPS) is a common, effective and reliable treatment modality for portal hypertension. Migration of the TIPS stent into the right atrium is a rare and fatal complication. CASE PRESENTATION: We report a case of severe tricuspid regurgitation caused by a stent migrating into the right atrium in a patient hospitalized with refractory ascites due to cirrhosis. DISCUSSION: In this case, it is noteworthy that secondary stenting, which is necessary especially in cases of occlusion, significantly increases the risk of migration. CONCLUSION: Although a rare complication, intracardiac stent migration should be considered in patients with a history of TIPS in the presence of a new heart murmur and signs of arrhythmia.

Effect of COVID-19 Pandemic on Hepatocellular Carcinoma Diagnosis: Results from a Single Turkey Center Study.

BACKGROUND AND AIMS: Currently malignancies of the liver are the sixth most frequently diagnosed cancers worldwide. The admission of patients to hospitals decreased due to the restriction of the Coronavirus disease 2019 (COVID-19) pandemic, especially patients suspected with cancer were delayed in their diagnosis and treatment. With this study, we aimed to investigate whether the Covid-19 pandemic caused a decrease in the number of hepatocellular cancers (HCC) or a delay in its diagnosis. METHODS: The study, which included newly diagnosed HCC patients, was conducted as a retrospective cross sectional study, in a single Turkey medical center. The patients were divided into pre-COVID-19 and post- COVID-19 two-year periods and compared in terms of tumor size, biochemical parameters, clinical and demographic features. RESULTS: A total of 63 HCC patients, 46 (73%) patients before the COVID-19 pandemic and 17 (27%) patients diagnosed during the COVID-19 pandemic were included. Maximum diameter of lesions and serum alpha- fetoprotein levels showed a statistically significant difference between the groups. Maximum tumor size in the pre-COVID-19 period was 4.58±3.77 mm, while in the COVID-19 period was 7.42±6.88 mm, the difference between two groups being statistically significant (p<0.05). HCC in the pre-COVID-19 period were detected mostly at Barcelona Clinic for Liver Cancer (BCLC) stage A (45.7%, n=21), while in the COVID-19 period most of HCC were detected at stage B (35.3%, n=6). CONCLUSIONS: The COVID-19 pandemic limited the access of patients to screening programs for HCC. The significant disruption in screening cirrhotic patients for HCC has led to a delay in diagnosis.

Artificial intelligence-based personalized diet: A pilot clinical study for irritable bowel syndrome.

We enrolled consecutive IBS-M patients (n = 25) according to Rome IV criteria. Fecal samples were obtained from all patients twice (pre-and post-intervention) and high-throughput 16S rRNA sequencing was performed. Six weeks of personalized nutrition diet (n = 14) for group 1 and a standard IBS diet (n = 11) for group 2 were followed. AI-based diet was designed based on optimizing a personalized nutritional strategy by an algorithm regarding individual gut microbiome features. The IBS-SSS evaluation for pre- and post-intervention exhibited significant improvement (p < .02 and p < .001 for the standard IBS diet and personalized nutrition groups, respectively). While the IBS-SSS evaluation changed to moderate from severe in 78% (11 out of 14) of the personalized nutrition group, no such change was observed in the standard IBS diet group. A statistically significant increase in the Faecalibacterium genus was observed in the personalized nutrition group (p = .04). Bacteroides and putatively probiotic genus Propionibacterium were increased in the personalized nutrition group. The change (delta) values in IBS-SSS scores (before-after) in personalized nutrition and standard IBS diet groups are significantly higher in the personalized nutrition group. AI-based personalized microbiome modulation through diet significantly improves IBS-related symptoms in patients with IBS-M. Further large-scale, randomized placebo-controlled trials with long-term follow-up (durability) are needed.

Betulinic acid protects against ischemia/reperfusion-induced renal damage and inhibits leukocyte apoptosis.

The possible protective effect of betulinic acid on renal ischemia/reperfusion (I/R) injury was studied. Wistar Albino rats were unilaterally nephrectomized and subjected to 45 min of renal pedicle occlusion followed by 6 h of reperfusion. Betulinic acid (250 mg/kg, i.p.) or saline was administered at 30 min prior to ischemia and immediately before the reperfusion. Creatinine, blood urea nitrogen (BUN), lactate dehydrogenase (LDH) and TNF-alpha as well as the oxidative burst of neutrophil and leukocyte apoptosis were assayed in blood samples. Malondialdehyde (MDA), glutathione (GSH) levels, Na(+), K(+)-ATPase and myeloperoxidase (MPO) activities were determined in kidney tissue which was also analysed microscopically. I/R caused significant increases in blood creatinine, BUN, LDH and TNF-alpha. In the kidney samples of the I/R group, MDA levels and MPO activity were increased significantly, however, GSH levels and Na(+), K(+)-ATPase activity were decreased. Betulinic acid ameliorated the oxidative burst response to both formyl-methionyl-leucyl-phenylalanine (fMLP) and phorbol 12-myristate 13-acetate (PMA) stimuli, normalized the apoptotic response and most of the biochemical indices as well as histopathological alterations induced by I/R. In conclusion, these data suggest that betulinic acid attenuates I/R-induced oxidant responses, improved microscopic damage and renal function by regulating the apoptotic function of leukocytes and inhibiting neutrophil infiltration.