Gallstone disease and its correlates among patients attending teaching hospital of North India

Cost-effectiveness of cholecystectomy compared to conservative management in people presenting with uncomplicated symptomatic gallstones or cholecystitis in India

OBJECTIVES

Gallstone diseases impose a significant economic burden on the health care system; thus, determining cost-effective management for gallstones is essential. We aim to estimate the cost-effectiveness of cholecystectomy compared with conservative management in individuals with uncomplicated symptomatic gallstones or cholecystitis in India.

METHODS

A decision-analytic Markov model was used to compare the costs and QALY of early laparoscopic cholecystectomy (ELC), delayed laparoscopic cholecystectomy (DLC), and conservative management (CM) in patients with symptomatic uncomplicated gallstone/cholecystitis from an Indian health system perspective. Incremental cost-effectiveness ratio (ICER) was calculated. One-way and probabilistic sensitivity analyses were performed to test parameter uncertainties.

RESULTS

ELC and DLC, compared to CM, incurred an incremental cost of -₹10,948 ($146) and ₹1,054 ($14) for the 0.032 QALYs gained. The ICER was -₹3,42,758 ($4577) for ELC vs. CM, and ₹33,183 ($443) for DLC vs. CM, suggesting ELC and DLC are cost-effective. ELC saved ₹12,001 ($160) for 0.0002 QALYs gained compared to DLC, resulting in an ICER of -₹6,43,89,441 ($8,59,733). The results were robust to changes in the input parameters in sensitivity analyses.

CONCLUSION

ELC is dominant compared to both DLC and CM, and DLC is more cost-effective than CM. Thus, ELC may be preferable to other gallstone disease managements.

Smokeless tobacco use and public health nutrition: a global systematic review

OBJECTIVE

Tobacco consumption among low- and middle-income countries where food insecurity remains a challenge poses several concerns. This review examines the available global evidence linking smokeless tobacco (SLT) use with public health nutrition and its implications.

DESIGN

Systematic review of articles extracted from PubMed and Scopus from January 2000 to December 2020.

SETTING

Included studies that demonstrated the relationship between SLT and nutrition-related factors, that is, BMI, malnutrition, anaemia, poor birth outcomes and metabolic disorders. Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines have been followed to conduct the systematic evidence review.

PARTICIPANTS

A total of thirty-four studies were finally used in the systematic review, which included cross-sectional (thirty-one) and cohort (three).

RESULTS

SLT use has a huge impact on body weight, alteration in taste, poor oral health, and consumption of fruits and vegetables leading to malnutrition. Maternal use of SLT not only leads to anaemia but also hampers birth outcomes. Increased risk of metabolic syndrome and gallstone disease among SLT users are also well documented in the studies.

CONCLUSION

The review highlights the linkages between SLT usage and poor nutritional outcomes. Tobacco control efforts should be convergent with public health nutrition to achieve overall health benefits. Attention is also required to explore suitable mechanisms for SLT cessation combined with enhancing food and nutrition security at the community level in sync with investments in public health nutrition intervention.

Gallstone Disease, Obesity and the Firmicutes/Bacteroidetes Ratio as a Possible Biomarker of Gut Dysbiosis

Obesity is a major risk factor for developing gallstone disease (GSD). Previous studies have shown that obesity is associated with an elevated Firmicutes/Bacteroidetes ratio in the gut microbiota. These findings suggest that the development of GSD may be related to gut dysbiosis. This review presents and summarizes the recent findings of studies on the gut microbiota in patients with GSD. Most of the studies on the gut microbiota in patients with GSD have shown a significant increase in the phyla Firmicutes (Lactobacillaceae family, genera Clostridium, Ruminococcus, Veillonella, Blautia, Dorea, Anaerostipes, and Oscillospira), Actinobacteria (Bifidobacterium genus), Proteobacteria, Bacteroidetes (genera Bacteroides, Prevotella, and Fusobacterium) and a significant decrease in the phyla Bacteroidetes (family Muribaculaceae, and genera Bacteroides, Prevotella, Alistipes, Paludibacter, Barnesiella), Firmicutes (genera Faecalibacterium, Eubacterium, Lachnospira, and Roseburia), Actinobacteria (Bifidobacterium genus), and Proteobacteria (Desulfovibrio genus). The influence of GSD on microbial diversity is not clear. Some studies report that GSD reduces microbial diversity in the bile, whereas others suggest the increase in microbial diversity in the bile of patients with GSD. The phyla Proteobacteria (especially family Enterobacteriaceae) and Firmicutes (Enterococcus genus) are most commonly detected in the bile of patients with GSD. On the other hand, the composition of bile microbiota in patients with GSD shows considerable inter-individual variability. The impact of GSD on the Firmicutes/Bacteroidetes ratio is unclear and reports are contradictory. For this reason, it should be stated that the results of reviewed studies do not allow for drawing unequivocal conclusions regarding the relationship between GSD and the Firmicutes/Bacteroidetes ratio in the microbiota.