Termocoagulação endoscópica do esôfago de Barrett com plasma de argônio sob diferentes potências: análise histopatológica e de sintomas pós-procedimento

Dotti, Vanessa Puccinelli; Baretta, Giórgio Alfredo Pedroso; Yoshii, Sérgio Ossamu; Ivano, Flávio Heuta; Ribeiro, Hugo Daniel Welter; Matias, Jorge Eduardo Fouto

doi:10.1590/s0100-69912009000200004

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…In this case, no histological changes suggested neoplasia in patients undergoing APC. Dotti et al [25] showed a correlation between potency and level of mucosal involvement (depth), analyzed by histology, after applying APC in esophageal mucosa affected by Barrett's esophagus. They observed that the higher the potency, the greater the deep mucosa; with 90 % of patients undergoing APC with 70 W, the deep mucosa was cauterized, different from patients with an APC 50 W rate of 60 %.…”

Section: Gastrojejunal Anastomosis Diametermentioning

confidence: 99%

Efficacy of the argon plasma coagulation in patients with weight regain after gastric bypass: a randomized control trial

et al. 2023

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Background and study aims Endoscopic procedure using argon plasma coagulation (APC) promotes a progressive reduction in gastrojejunal anastomosis diameter. The present study aimed to evaluate the efficacy of the APC in patients with weight regain in the postoperative periods of gastric bypass. Patients and methods This was a randomized controlled trial conducted with 66 patients who were randomly assigned selected (using lottery method) and divided into two groups: study group (SG), 38 patients (APC treatment); and control group (CG), 28 patients (only endoscopy procedure). We considered 30 days,180 days, and one year as short-term, medium-term, and long-term, respectively. The parameters analyzed were total weight loss (TWL), excess weight loss (%EWL), total weight loss (%TWL), and reduction of weight regain (%RWR). Furthermore, a biopsy for neoplastic histological changes was carried out for the APC group. For statistical analysis, values of P < 0.05 were considered significant. Results The %TWL and %RWR were higher in the SG in short, medium, and long terms, when compared to the same periods in the CG (P < 0.001). One year after follow-up, the final weight did not reach the statistical difference between groups. Biopsy performed in SG 1 year after APC did not reveal neoplastic histological changes. Conclusions APC effectively treats weight regain after bariatric surgery in the short and medium-term. An important "new" weight gain was observed in the long-term, showing that obesity is a chronic disease that requires multidisciplinary and family care for life. Also, APC is a safe procedure with low adverse event rates.

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Section: Gastrojejunal Anastomosis Diametermentioning

confidence: 99%

Efficacy of the argon plasma coagulation in patients with weight regain after gastric bypass: a randomized control trial

et al. 2023

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“…Table 1 summarizes the baseline characteristics of the included studies. Twenty studies included standard APC (ranging from 30 to 60 W), [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] eight studies included high-power APC (>60 W), [31][32][33][34][35][36][37][38] two included mixed wattage, 39,40 and eight studies included on hybrid APC. [41][42][43][44][45][46][47][48] Among studies reporting high-power APC, one used 65 to 70 W, 11 two used 70 W, 35,38 four used 90 W, 32,33,36,37 and one used 150 W. 34 Supplementary Table 1 shows the detailed study quality analysis using a modified Newcastle-Ottawa Scale.…”

Section: Baseline Characteristics With Quality Assessmentmentioning

confidence: 99%

Efficacy and Safety of Argon Plasma Coagulation for the Ablation of Barrett’s Esophagus: A Systemic Review and Meta-Analysis

Kozyk,

Kumar,

Strubchevska

et al. 2023

Gut and Liver

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Background/Aims Argon plasma coagulation (APC) is an alternate ablative method to radiofrequency ablation for the treatment of Barrett’s esophagus (BE), and it is preferred due to its lower cost and widespread availability. The present meta-analysis aimed to analyze the safety and efficacy of APC for the management of BE. Methods A literature search from January 2000 to November 2022 was done for studies analyzing the outcome of APC in BE. The primary outcomes were clearance rate of intestinal metaplasia and adverse events (AE). Pooled event rates were expressed with summative statistics. Results A total of 38 studies were included in the final analysis. The pooled event rate for clearance rate of intestinal metaplasia with APC in BE was 86.8% (95% confidence interval [CI], 83.5% to 90.2%), with high-power and hybrid APC having a higher rate compared to standard APC. The pooled incidence of AE with APC in BE was 22.5% (95% CI, 15.3% to 29.7%), without any significant difference between the subgroups, with self-limited chest pain being the commonest AE. The incidence of serious AE was only 0.4% (95% CI, 0.0% to 1.0%), while stricture development was seen only in 1.7% (95% CI, 0.9% to 2.6%) of cases. The pooled recurrence rate of BE was 16.1% (95% CI, 10.7% to 21.6%), with a significantly lower recurrence with high-power APC than standard APC. Conclusions High-power and hybrid APC seem to have an advantage over standard APC in terms of clearance rate and recurrence rate. Further studies are required to compare the efficacy and safety of hybrid APC with standard APC and radiofrequency ablation.

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Argon Plasma Coagulation of Gastrojejunal Anastomosis for Weight Regain After Gastric Bypass

et al. 2014

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Termocoagulação endoscópica do esôfago de Barrett com plasma de argônio sob diferentes potências: análise histopatológica e de sintomas pós-procedimento

Abstract: There are evidences that the 70W potency argon plasma coagulation for BE leads to a lower incidence of residual specialized columnar metaplasia under the new scamous epithelium.

Cited by 5 publications

References 27 publications

Efficacy of the argon plasma coagulation in patients with weight regain after gastric bypass: a randomized control trial

Efficacy of the argon plasma coagulation in patients with weight regain after gastric bypass: a randomized control trial

Efficacy and Safety of Argon Plasma Coagulation for the Ablation of Barrett’s Esophagus: A Systemic Review and Meta-Analysis

Argon Plasma Coagulation of Gastrojejunal Anastomosis for Weight Regain After Gastric Bypass

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