Purpose The present study aimed to evaluate electromyographic activity, bite strength, and masticatory muscle thickness in women without obesity and with severe obesity elected for bariatric surgery. Also, patients with obesity underwent bariatric surgery and were re-evaluated 3 and 6 months after surgery to analyze the influence of bariatric surgery outcomes on the stomatognathic system, a functional anatomical system comprising teeth, jaw, and associated soft tissues. Material and Methods Thirty-seven women were enrolled in the study. Twenty-one women with class II and III obesity according to the body mass index (BMI) and eligible for bariatric surgery composed the obesity pre-surgery group (Ob). Sixteen women with a normal weight according to BMI composed the non-obesity group (NOb). Afterward, the patients from the Ob group were followed up for 3 and 6 months after undergoing Roux-en-Y gastric bypass. Anthropometry, body composition, and parameters of the stomatognathic system were evaluated. Results The stomatognathic system of the Ob group had less muscle activity and bite strength, but the thickness of masseter and temporal muscles was larger than the NOb group. We also observed a significant change in the muscular activity and bit strength of the stomatognathic system post-bariatric surgery. Conclusion Evaluating the stomatognathic system indicated that women with clinically severe obesity have less masticatory efficiency than non-obese. Also, we found a positive influence of bariatric surgery in masticatory activity after 3 and 6 months. Thus, monitoring the parameters of the stomatognathic system could be important in the indication and outcomes of bariatric surgery.

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Despite the belief that critically ill obese patients with coronavirus disease 2019 have an increased resting energy expenditure (REE), in some specific obese patients, an apparently contradictory reduction in metabolic needs can be observed. A case report of two obese patients with diagnosis of COVID-19 admitted to an intensive care unit was conducted to illustrate this discrepancy. Case 1 is a 16-year-old female (body mass index (BMI) = 44.6 kg/m 2 ), with a medical history of clinical hypothyroidism, who had a remarkable decrease in REE. Case 2 is a 42-year-old male (BMI = 36.6 kg/m 2 ), with a medical history of polytrauma followed by a motorcycle accident showed a classical pattern of hypermetabolism. Indirect calorimetry (IC) was performed during 8 consecutive days for both patients. The different REE in the hypometabolic (case 1) and hypermetabolic (case 2) state was demonstrated by IC measurements. In conclusion, the more frequent usage of IC could avoid the pitfalls of predicting REE equations that could lead to an under or overfeeding.

ObjectivesAnalyze the influence of Binge Eating Disorder (BED) and symptoms of depression and anxiety on anthropometric and body composition changes over five years after bariatric surgery in patients with obesity.MethodsEvaluation of 118 individuals undergoing bariatric surgery, divided into two groups: Group 1: individuals with BED; Group 2: individuals without BED. The individuals were submitted to anthropometric and body composition evaluation, and analysis of the presence of BED, depression, and anxiety according to the DSM-V and using validated questionnaires. The Kolmogorovi-Smirnov, t-test, Fisher’s, chi-square, and ANOVA were used for statistical analysis.ResultsThe groups with BED (N=61, 51,7%) and without BED (N=57, 48,3%) did not differ from each other for all sociodemographic assessed variables (p>0.05) and had similar changes in waist circumference and body composition over five years after bariatric surgery (p>0.05). On the other hand, only patients with BED had severe depression (13,11%, p=0.0079) and had a higher frequency of moderate (22.95%, p=0.0022) and severe (14.75%, p=0.0022) anxiety in the preoperative period of bariatric surgery. In addition, only the group with BED had increased weight and increased BMI in the fifth year after bariatric surgery (p<0.05).ConclusionPatients with BED had more intense symptoms of depression and anxiety, and this disorder may reappear in the postoperative period of bariatric surgery and contribute to weight gain and an increase in BMI.Level of evidence: III (evidence obtained from case-control analytic study).