RESULTS: Before the surgery, 6 patients were diagnosed with grade 1
liver steatosis, 33 patients with grade 2 and 16 patients with grade 3. One year after the surgery, only 21 patients had features of
liver steatosis at ultrasound. All
weight loss parameters showed statistically significant changes during the observation; the median percentage of total
weight loss was 31.0% (IQR: 27.5; 34.5) with p = 0.0003, the median percentage of excess
weight loss was 61.8% (IQR: 52.4; 72.3) with p = 0.0013 and the median percentage of excess body mass index loss was 71.0% (IQR: 61.3; 86.9) with p = 0.0036 12 months after laparoscopic sleeve
gastrectomy. The median Non-
Alcoholic Fatty Liver Fibrosis Score at baseline was 0.2 (IQR: -0.8; 1.0) and decreased to -1.6 (IQR: -2.4; -0.4) (p < 0.0001). Moderate negative correlations between Non-
Alcoholic Fatty Liver Fibrosis Score and percentage of total
weight loss (r = -0.434, p < 0.0001), percentage of excess
weight loss (r = -0.456, p < 0.0001) and percentage of excess body mass index loss (r = -0.512, p < 0.0001) were found.
CONCLUSIONS: