Anxiety, stress, and quality of life in patients with tuberculosis: A systematic review and meta-analysis.

Anxiety symptoms when coexisting with tuberculosis (TB), can have deleterious effects on treatment continuation that could contribute to the development of treatment resistance in TB. It is essential to understand the prevalence of anxiety in TB to develop clinical recommendations for its management. The primary objective of our review was to estimate the pooled prevalence of anxiety in TB patients along with the estimation of stress and quality of life in such patients. The relevant literature search on observational studies published in the English language till the year 2020 was carried out. A total of 8086 participants from 29 studies were included, of which 24 were cross-sectional studies and the remaining were case-control, and cohort studies. The estimated pooled prevalence of anxiety, comorbid depression, stress, and poor quality of life in TB patients was 32.54% [24.95, 41.18], 32.87% [25.79, 40.82], 52.68% [48.60, 56.72], and 79.51% [45.67, 94.72] respectively. When comparing the prevalence of anxiety across World Health Organization (WHO) regions, there was a statistically significant difference, with the African Region (AFR) having the highest prevalence i.e. 37.87% [29.59, 46.92], and the Western Pacific Region (WPR) having the lowest prevalence i.e. 15.83 % [12.72, 19.53]. The higher prevalence of anxiety in TB in the AFR and South-East Asian Region (SEAR) suggests a strong correlation with the developing status of these regions which calls for efforts to identify and treat the risk factors common to both anxiety and TB.

Magnitude of Substance Use and Its Associated Factors Among the Medical Students in India and Implications for Medical Education: A Narrative Review.

Background: Medical students are at an increased risk of developing substance use and related problems (SURP) because of the inherent stress associated with the professional medical course apart from the developmental risk factors. However, this is under-researched. Moreover, a comprehensive review on the prevalence of SURP among the medical undergraduates (UGs) and associated factors is lacking from India. To fill this gap, the current research work is aimed to review the existing literature on the magnitude of the SURP among UGs of India and its determinants. Methods: PubMed, Medline, and Google Scholar databases were searched for the original articles studying the prevalence of SURP among medical UGs of India, published from inception till date. Non-original articles, studies on behavioral addictions, and those not directly assessing the prevalence of SURP among the medical UGs were excluded. Results: A total of 39 studies were found eligible for the review. Alcohol (current use: 3.2%-43.8%), followed by tobacco (3.7%-28.8%) and cannabis (1.6%-15%), were the common substances used by the medical students. Among the females, an increasing trend of substance use, particularly of nonprescription sedatives (even higher than males), alcohol, and smoking, was seen. Family history, peer pressure, transition from school to college life, and progression in the medical course were important associated factors. Conclusion: Sensitizing medical students and college authorities, increasing the duration of training on SURP in medical curricula, and providing psychological support for the students with SURP could address this issue.

Segmental Multiple-Jaw Surgery without Orthodontia: Clear Aligners Alone.

Segmental Le Fort I osteotomy, a complex procedure with many mobile parts, has traditionally required presurgical orthodontics with conventional braces, composed of metal brackets, bands, and archwires. These appliances are not always accepted by patients, particularly older teenagers and professional adults who previously endured traditional orthodontia during adolescence, and now require retreatment because of jaw growth differences necessitating orthognathic surgery. Less obtrusive orthodontic therapies, involving clear aligners (e.g., Invisalign), are becoming increasingly popular, as they are less noticeable and less aesthetically objectionable. They are typically indicated for milder occlusal discrepancies, such as crowding and minor rotations, without significant vertical or transverse problems. Clear aligners in conjunction with orthognathic surgery for severe dentofacial problems are progressive and not widely used. Moreover, the most complicated of orthognathic sequences, segmental double-jaw surgery, has never before been described to be performed using Invisalign. Several potential challenges exist when performing segmental double-jaw surgery with Invisalign (i.e., no bonded or banded appliances, and no archwire). The purpose of this article is to review the feasibility of segmental double-jaw surgery without orthodontia (Invisalign only), report a series of cases, and review the technical steps involved.

The effect of low-frequency mechanical vibration on retention in an orthodontic relapse model.

OBJECTIVE: To investigate the effect of low-frequency mechanical vibration (LFMV) on the prevention of relapse after active orthodontic tooth movement, bone volume fraction (BVF), tissue density, and the integrity of periodontal ligament. MATERIALS AND METHODS: Thirty male CD1, 12-week-old mice were used for the study. Mice were randomly divided into three groups: 1. control group, 2. relapse group, and 3. relapse + 30 Hz vibration group. In the control group, first molar was moved mesially for 7 days using nickel-titanium coil spring delivering 10g of force, whereas in relapse and relapse + 30 Hz groups, first molar was moved mesially for 7 days and then orthodontic force was removed and molar was allowed to relapse for 7 days. In relapse + 30 Hz group, LFMVs were applied at 30 Hz. Micro-focus computed tomography (micro-CT) was used for tooth movement measurements (relapse), BVF, and tissue density. Additionally, immunostaining for sclerostin, tartrate-resistant acid phosphatase staining, and picro-sirius red staining were performed on histological sections. RESULTS: LFMV at 30 Hz showed a tendency to decrease relapse but was not statistically significant. Micro-CT analysis showed a trend towards increase in BVF and tissue density with application of LFMV. Sclerostin expression was decreased with 30 Hz vibration. Additionally, the picro-sirius staining showed that LFMV at 30 Hz helped in maintaining the thickness and integrity of collagen fibres in periodontal ligament. LIMITATIONS: This is an animal study and extrapolation of the current findings to the clinical situation must be done with caution, as there is no osteonal remodelling (secondary remodelling) in mice when compared to humans. CONCLUSION: There was no statistically significant difference in the amount of relapse between the relapse-only and relapse + 30 Hz groups. However, there was a trend of decrease in relapse with 30 Hz mechanical vibration.

Effect of low-frequency mechanical vibration on orthodontic tooth movement.

INTRODUCTION: Our objective was to investigate the effect of low-frequency mechanical vibration (LFMV) on the rate of tooth movement, bone volume fraction, tissue density, and the integrity of the periodontal ligament. Our null hypothesis was that there would be no difference in the amount of tooth movement between different values of LFMV. METHODS: Sixty-four male CD1 mice, 12 weeks old, were used for orthodontic tooth movement. The mice were randomly divided into 2 groups: control groups (baseline; no spring + 5 Hz; no spring + 10 Hz; and no spring + 20 Hz) and experimental groups (spring + no vibration; spring + 5 Hz; spring + 10 Hz; and spring + 20 Hz). In the experimental groups, the first molars were moved mesially for 2 weeks using nickel-titanium coil springs delivering 10 g of force. In the control and experimental groups, LFMV was applied at 5, 10, or 20 Hz. Microfocus x-ray computed tomography analysis was used for tooth movement measurements, bone volume fraction, and tissue density. Additionally, immunostaining for sclerostin, tartrate-resistant acid phosphatase (TRAP) staining, and picrosirius red staining were used on the histologic sections. Simple descriptive statistics were used to summarize the data. Kruskal-Wallis tests were used to compare the outcomes across treatment groups. RESULTS: LFMV did not increase the rate of orthodontic tooth movement. Microfocus x-ray computed tomography analysis showed increases in bone volume fractions and tissue densities with applications of LFMV. Sclerostin expression was decreased with 10 and 20 Hz vibrations in both the control and experimental groups. Additionally, the picrosirius staining showed that LFMV helped in maintaining the thickness and integrity of collagen fibers in the periodontal ligament. CONCLUSIONS: There was no significant increase in tooth movement by applying LFMV when compared with the control groups (spring + no vibration).