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1.
Liver Int ; 36(2): 240-5, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26212020

RESUMO

BACKGROUND/AIMS: Endoscopic screening for high-risk gastro-oesophageal varices (GOV) is recommended for compensated cirrhotic patients with transient elastography identifying increasing numbers of patients with cirrhosis without portal hypertension. Using liver stiffness measurement (LSM) ± platelet count, the aim was to develop a simple clinical rule to exclude the presence of high-risk GOV in patients with Child-Pugh A cirrhosis. METHODS: A retrospective analysis of 71 patients with Child-Pugh A cirrhosis diagnosed by transient elastography (LSM >13.6 kPa) who underwent screening gastroscopy was conducted. A predictive model using LSM ± platelet count was assessed to exclude the presence of high-risk GOV (diameter >5 mm and/or the presence of high-risk stigmata) and validated using a second cohort of 200 patients from two independent centres. RESULTS: High-risk GOV were present in 10 (15%) and 16 (8%) of the training and validation cohorts, respectively, which was associated with LSM and Pl count (P < 0.05). A combined model based on LSM and Pl count was more accurate for excluding the presence of high-risk GOV than either alone (training cohort AUROC: 0.87 [0.77-0.96] vs. 0.78 [0.65-0.92] for LSM and 0.71 [0.52-0.90] for platelets) with the combination of LSM ≤25 kPa and Pl ≥100 having a NPV of 100% in both the training and validation cohorts. A total of 107 (39%) patients meet this criterion. CONCLUSION: The combination of LSM ≤25 kPa and Pl ≥100 can be used in clinical practice to exclude the presence of high-risk GOV in patients with Child-Pugh A cirrhosis.


Assuntos
Técnicas de Imagem por Elasticidade/métodos , Varizes Esofágicas e Gástricas , Cirrose Hepática , Fígado/patologia , Contagem de Plaquetas/métodos , Idoso , Endoscopia do Sistema Digestório/métodos , Varizes Esofágicas e Gástricas/diagnóstico , Varizes Esofágicas e Gástricas/etiologia , Feminino , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Medição de Risco/métodos
3.
Endosc Int Open ; 5(11): E1062-E1068, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29250580

RESUMO

BACKGROUND AND STUDY AIMS: The evidence for efficacy and safety of cold snare polypectomy is limited. The aim of this study was to assess the completeness of resection and safety of cold snare polypectomy, using either traditional or dedicated cold snares. PATIENTS AND METHODS: This was a prospective, non-randomized study performed at a single tertiary hospital. Adult patients with at least one colorectal polyp (size ≤ 10 mm) removed by cold snare were included. In the first phase, all patients had polyps removed by traditional snare without diathermy. In the second phase, all patients had polyps removed by dedicated cold snare. Complete endoscopic resection was determined from histological examination of quadrantic polypectomy margin biopsies. Immediate or delayed bleeding within 2 weeks was recorded. RESULTS: In total, 181 patients with 299 eligible polyps (n = 93 (173 polyps) traditional snare group, n = 88 (126 polyps) dedicated cold snare group) were included. Patient demographics and procedure indications were similar between groups. Mean polyp size was 6 mm in both groups ( P  = 0.25). Complete polyp resection was 165 /173 (95.4 %; 95 %CI 90.5 - 97.6 %) in the traditional snare group and 124/126 (98.4 %; 95 %CI 93.7 - 99.6 %) in the dedicated cold snare group ( P  = 0.16). Serrated polyps, compared with adenomatous polyps, had a higher rate of incomplete resection (7 % vs. 2 %, P  = 0.03). There was no statistically significant difference in the rate of immediate bleeding (3 % vs. 1 %, P  = 0.41) and there were no delayed hemorrhages or perforations. CONCLUSIONS: Cold snare polypectomy is effective and safe for the complete endoscopic resection of small (≤ 10 mm) colorectal polyps with either traditional or dedicated cold snares.

4.
JGH Open ; 1(1): 38-43, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30483531

RESUMO

BACKGROUND AND AIM: Bowel preparations with polyethylene glycol (PEG) and clear fluids are often poorly tolerated. We compared an innovative low-residue White Diet and low-volume, split-dose Picosalax with the standard preparation at our institution of day-before clear fluids and combination PEG plus sodium picosulfate/magnesium citrate (SPMC). METHODS: Adults undergoing morning colonoscopy were randomized to either the White Diet and split-dose, two sachets of Picosalax (WD/PICO) or day-before clear fluids and 1-L PEG plus two sachets of SPMC (CF/PEG + SPMC). The primary endpoint was successful bowel preparation defined by an Ottawa bowel preparation score ≤ 6. An intention-to-treat analysis with a predefined non-inferiority margin of 15% was used to compare efficacy. RESULTS: A total of 250 patients were randomized (125 WD/PICO and 125 CF/PEG + SPMC). WD/PICO was non-inferior to CF/PEG + SPMC for successful bowel preparation by intention-to-treat analysis (58% WD/PICO vs 62% CF/PEG + SPMC, 95%CI: -14.2 to 6.2%) and per-protocol analysis (64% WD/PICO vs 65% CF/PEG + SPMC, 95%CI: -11.3 to 9.4%). Patients in the WD/PICO group reported greater satisfaction with the diet (P < 0.001), greater ease of following the diet (P < 0.001), and improved experience compared with prior colonoscopy (P < 0.0001), less bloating (P = 0.02), less weakness (P = 0.046), less hunger (P < 0.0001), and less interference with daily activities (P = 0.001). Procedure/withdrawal times and adenoma detection rates were similar between groups. CONCLUSION: Bowel preparation with the White Diet and low-volume, split-dose Picosalax was preferred and better tolerated without detriment to bowel preparation success compared with clear fluids and combination PEG plus SPMC for morning colonoscopy.

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