Subjective taste to polyethylene glycol is associated with efficacy of right colon preparation.

AIM: A prospective observational trial with preparations using polyethylene glycol (PEG) to compare patient compliance and adverse events according to individual subjective taste. METHODS: A total of 299 outpatients (mean ± standard deviation [SD] 56.5 ± 13.8 years, 172 males) were recruited for our study. We assessed the efficacy of bowel preparation, subjective taste to their regimens, compliance and adverse events during the preparation. RESULTS: We achieved adequate preparation in 267 (89.3%). A total of 124 patients (41.5%) had 'unacceptable taste' to their regimens. The patients with acceptable taste had better compliance than the patients with unacceptable taste (p = .009). The patients with unacceptable taste had more frequent adverse events such as nausea, vomiting and abdominal bloating than the patients with acceptable taste (all p < .001, Table 2). Patients with unacceptable taste (16.1%) had more frequent inadequate preparation in overall colon than patients with acceptable taste (6.9%, p = .011). There was a significant difference in the efficacy of preparation of right colon between the two groups (p = .004). CONCLUSION: Subjective taste to PEG is associated with efficacy of right colon preparation. In addition, subjective taste to PEG is associated with compliance and adverse events.

Pretreatment antimicrobial susceptibility-guided vs. clarithromycin-based triple therapy for Helicobacter pylori eradication in a region with high rates of multiple drug resistance.

OBJECTIVES: Helicobacter pylori eradication rates with clarithromycin-based triple therapy are declining, and an alternative strategy is needed urgently. We sought to compare the efficacy of pretreatment antimicrobial susceptibility-guided vs. clarithromycin-based triple therapy for H. pylori eradication in a region with high rates of multiple drug resistance. METHODS: Consecutive H. pylori-infected patients with gastric epithelial neoplasms were randomized to receive antimicrobial susceptibility-guided therapy or clarithromycin-based triple therapy for 7 days. In patients in whom the infection was not eradicated, antibiotics were given according to an initial antimicrobial susceptibility test as a second-line therapy in both groups. Eradication rates, antibiotics resistance rates, and drug compliance owing to adverse effects were compared between the groups. RESULTS: In total, 114 patients were enrolled, and 112 completed the protocols. Drug compliance and side effects were similar between the groups. The intention-to-treat eradication rates were 94.7% (95% confidence interval (CI)=88.8-100%, 54/57) in the antimicrobial susceptibility-guided group and 71.9% (95% CI=60.2-83.5%, 41/57) in the clarithromycin-based triple therapy group after the initial treatment (P=0.002), whereas the per-protocol (PP) eradication rates were 96.4% (95% CI=91.5-100%, 54/56) in the antimicrobial susceptibility-guided group and 73.2% (95% CI=61.5-84.8%, 41/56) in the clarithromycin-based triple therapy group (P=0.001). In H. pylori with clarithromycin resistance, the eradication failure rate with first-line treatment was lower in the susceptibility-guided therapy group (0%, 0/12) compared with the clarithromycin-based triple therapy group (80.0%, 95% CI=59.7-100%, 12/15) by PP analysis (P<0.001). CONCLUSIONS: Pretreatment antimicrobial susceptibility-guided therapy is more effective than clarithromycin-based triple therapy for H. pylori eradication in a region with high rates of multiple drug resistance.

Cap-assisted ERCP in patients with difficult cannulation due to periampullary diverticulum.

Selective biliary cannulation is an essential prerequisite for therapeutic endoscopic retrograde cholangiopancreatography (ERCP). The cap-fitted forward-viewing endoscope has been used for ERCP in patients with surgically altered anatomy. In this case series, 12 patients with periampullary diverticulum underwent ERCP using the cap-assisted forward-viewing endoscope due to failure of biliary cannulation using the standard technique. Successful ERCP was achieved in all patients with no serious complications.

Needle-knife fistulotomy in patients with periampullary diverticula and difficult bile duct cannulation.

BACKGROUND AND AIM: Needle-knife fistulotomy has commonly been used for overcoming difficult bile duct cannulation. Periampullary diverticula (PAD) can be an impediment to endoscopic retrograde cholangiopancreatography (ERCP) procedures. There are little data on needle-knife fistulotomy in patients with PAD. We evaluated the efficacy and safety of needle-knife fistulotomy between patients with and without PAD. METHODS: Data from December 2005 to October 2010 were reviewed. Patients who underwent needle-knife fistulotomy were divided into the group with PAD and the group without PAD (control group). The technical success and complications were compared. RESULTS: A total of 3012 ERCP cases were analyzed. Needle-knife fistulotomy was performed in 154 out of 3012 cases (5.1%) with 138 of these patients (89.6%) experiencing successful bile duct cannulation. The overall cannulation success rate was not significantly different between PAD group (n=33) and control group (n =121) (93.9% vs 88.4%; P=0.523). There was no significant difference in pancreatitis, bleeding and perforation between the two groups. CONCLUSIONS: Needle-knife fistulotomy can be performed effectively and safely in patients with periampullary diverticula and difficult bile duct cannulation.

Endoscopic retrograde cholangiopancreatography in patients with previous acute coronary syndrome.

BACKGROUND/AIMS: Endoscopic retrograde cholangiopancreatography (ERCP) is considered a high-risk procedure in patients with previous acute coronary syndrome (ACS); however, clinical studies are rare in the literature. The aim of this study was to investigate the safety and efficacy of ERCP in patients with previous ACS. METHODS: We retrospectively reviewed the medical records of patients with previous ACS who underwent ERCP between January 2007 and August 2012. The clinical characteristics, ERCP diagnoses, treatment results, and complications were analyzed. RESULTS: Fifty patients underwent ERCP an average of 41.6 months after ACS. The most common indication for ERCP was calculous cholangitis. After deep biliary cannulation, endoscopic sphincterotomy, biliary stone removal and endoscopic biliary drainage were successfully performed. Immediate postsphincterotomy bleeding occurred in seven patients, which was successfully controlled using endoscopic therapy. Elevation of cardiac troponin I levels were observed in three patients (6%) before ERCP, and all of these patients were diagnosed with pancreatobiliary disease combined with recurrent ACS, which was treated with coronary artery stent insertion (n=2) and balloon angioplasty (n=1). CONCLUSIONS: Therapeutic ERCP is effective and safe in patients with previous ACS. Cardiac troponin I elevation should be considered a warning sign for recurrent ACS in patients who undergo ERCP.

Clinical outcomes of gastric variceal obliteration using N-butyl-2-cyanoacrylate in patients with acute gastric variceal hemorrhage.

BACKGROUND/AIMS: To evaluate the long-term efficacy and safety of endoscopic injection of N-butyl-2-cyanoacrylate (NBC; Histoacryl) for treatment of bleeding gastric varices. METHODS: We retrospectively analyzed the records of 455 patients with gastric variceal hemorrhage (GVH) who were consecutively treated with NBC from January 2004 to July 2013, with a mean follow-up period of 582 days. The patients' endoscopic findings, initial hemostasis, complications, rebleeding rates, and bleeding-related death rates were reviewed. RESULTS: Hemostasis was achieved initially in 96.9% (441/455) of patients; rebleeding occurred in 35.2% (160/455), and the bleeding-related death rate was 6.8% (31/455) during follow-up. Complications included fever (6.8%), abdominal pain (3.7%), diarrhea (1.3%), spontaneous bacterial peritonitis (0.7%), bacteremia (0.4%), and embolism (0.2%). A red-color sign on concomitant esophageal varices (EVs) (p = 0.002) and previous history of variceal bleeding (p < 0.001) were significant risk factors for rebleeding within 1 year. The Child-Pugh score (p < 0.001), presence of hepatocellular carcinoma (p = 0.001), and failure of initial hemostasis (p < 0.001) were the risk factors most closely associated with bleeding-related death. CONCLUSIONS: This study provides a comprehensive overview of the outcomes and prognostic factors of patients with GVH. The results may help in the selection of effective treatment strategies for patients with GVH.

Predictive factors for recurrence and survival in hepatocellular carcinoma in South Korea.

AIM: To evaluate the factors predicting for recurrence and to analyze survival of patients with hepatocellular carcinoma (HCC). PATIENTS AND METHODS: A total of 743 patients who were consecutively diagnosed and treated with HCC were retrospectively analyzed from January 2004 to December 2012 at our institution. We analyzed their survival and tumor recurrence. RESULTS: On multivariate analysis, age >50 years, CLIP score <3, ALP <120 U/l, LDH <450 IU/l, CRP <0.8 mg/dl, tumor size <6 cm, no distant metastasis, and curative treatment modality were predictors for 1-year survival. CRP <0.8 mg/dl, Child-Pugh score <7, curative treatment modality and tumor size <6 cm were predictors for 3-year survival. Absence of vascular invasion and uninodular tumor type were predictors for 5-year survival. Multinodular tumor, tumor size >4 cm, and palliative treatment were independent risk factors for 1-year recurrence after initial treatment. CONCLUSION: This large study provides a comprehensive overview of the survival outcomes and prognostic factors regarding HCC, according to clinical characteristics, various treatment modalities, and the results will help in the selection of effective treatment strategies future.