Does Ultrasound Guidance Provide Pain Relief During Intrauterine Contraceptive Device Insertion? A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

OBJECTIVE: To evaluate ultrasound guidance effect in pain relief during intrauterine device (IUD) insertion. METHODS: Four different databases were searched from inception till June 2022. We selected randomized controlled trials (RCTs) that compared transabdominal ultrasound guidance versus traditional non-guided IUD insertion among women undergoing IUD placement for contraception. We used Revman software during performing our meta-analysis. Our primary outcome was the pain score during IUD insertion as evaluated by the Visual Analog Scale (VAS). Our secondary outcomes were the procedure insertion time, satisfaction, and incidences of complications and misplaced IUDs. RESULTS: Seven RCTs were retrieved with a total number of 1267 patients. There was a significant reduction in the VAS pain score during IUD insertion among the ultrasound-guided group (MD = -1.91, 95% CI [-3.08, -0.73], P = .001). The procedure insertion time was significantly shorter within the ultrasound guidance group compared with the control group (MD = -1.35, 95% CI [-1.81, -0.88], P < .001). Moreover, more women were significantly satisfied with the procedure among the ultrasound-guided group (P < .001). In addition, ultrasound-guided IUD insertion was linked to significant decline in incidences of complications and misplaced IUDs. CONCLUSION: Ultrasound guidance can be used as a modified technique during IUD insertion as it decreases pain, procedure time, and rates of complications and misplaced IUDs with better patient satisfaction.

NLRP3 inflammasome pathway involved in the pathogenesis of metabolic associated fatty liver disease.

The prevalence of Metabolic-associated fatty liver disease (MAFLD) has been steadily increasing worldwide, paralleling the global epidemic of obesity and diabetes. It is estimated that approximately one-quarter of the global population is affected by MAFLD. Despite its high prevalence, MAFLD often goes undiagnosed due to the lack of specific symptoms in its early stages. However, as the disease progresses, it can lead to more severe liver-related complications such as fibrosis, cirrhosis, and hepatocellular carcinoma. Therefore, we aimed to investigate the expression levels of the nucleotide-binding oligomerization domain, leucine-rich repeat (LRR)-containing proteins (NLR) family pyrin domain-containing protein 3 [NLRP3] inflammasome pathway components, NLRP3 and interleukin 1ß (IL-1ß) genes in patients with MAFLD with various degrees of steatosis and fibrosis. Participants were classified into two equal groups; MAFLD group: consisted of 120 patients with different degrees of hepatic fibrosis and steatosis based on fibro scan results. The non-MAFLD group was comprised of 107 participants. Molecular analysis of pyrin domain-containing protein 3 and IL-1ß relative gene expressions was performed in the blood of all participants, using Real-time quantitative polymerase chain reaction (RT-qPCR). Patients with post-MAFLD hepatic fibrosis had significantly higher relative gene expression levels of IL-1ß and NLRP3; with IL-1ß > 1.1 had AUC of 0.919, sensitivity of 88.33, specificity of 96.26, PPV of 96.4, and NPV of 88 and 92.3 accuracy (p value < 0.001). NLRP3 > 1.33 had a sensitivity of 97.5, specificity of 99.07, PPV of 99.2, NPV of 97.2, and 98.3 accuracy with an AUC of 0.991 (p value < 0.001) as predictors of post-MAFLD hepatic fibrosis.. A significant increase in the mean relative gene expression levels of both IL-1ß and NLRP3 found in patients with early fibrosis (F0-F1-2); 31.97 ± 11.8 and 6.76 ± 2.18, respectively; compared with patients with advanced hepatic fibrosis stages (F2-F3); 2.62 ± 3.71 and 4.27 ± 2.99 (p < 0.001 each). The present study provides novel evidence for the possible involvement of IL-1ß and NLRP3 inflammasome in metabolic-associated fatty liver disease pathogenesis and could be valid markers for the early detection of post-MAFLD hepatic fibrosis.