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1.
Digestion ; 101(2): 129-136, 2020.
Article in English | MEDLINE | ID: mdl-30712034

ABSTRACT

BACKGROUND: Although capsule endoscopy (CE) is useful to evaluate obscure gastrointestinal bleeding (OGIB), CE does not always identify the responsible lesions in patients with overt OGIB. OBJECTIVES: To identify factors predictive of rebleeding after negative CE in patients with overt OGIB. METHODS: We retrospectively analyzed the clinical data of 221 patients who underwent CE for overt OGIB. Among 120 patients with negative CE findings, clinical course of 112 patients after CE was followed-up. Clinical factors associated with rebleeding after negative CE and lesions responsible for rebleeding were investigated. RESULTS: Rebleeding was identified in 37 patients (33.0%) during follow-up after negative CE, and 36 patients (32.1%) developed rebleeding within 24 months after negative CE. Multivariate analyses showed that ongoing overt OGIB (OR 2.67; 95% CI 1.07-5.80; p = 0.036) and severe anemia at the initial CE examination (OR 2.54; 95% CI 1.33-4.96; p = 0.005) were independent factors -associated with rebleeding. Rebleeding source was detected in 13 patients. CONCLUSIONS: Rebleeding is not a rare condition among patients with overt OGIB after negative CE. Patients with ongoing overt OGIB or severe anemia at the initial CE examination seem to have a higher risk of rebleeding.


Subject(s)
Capsule Endoscopy/adverse effects , Gastrointestinal Hemorrhage/diagnosis , Aged , Anemia/complications , Female , Gastrointestinal Hemorrhage/etiology , Humans , Male , Middle Aged , Multivariate Analysis , Postoperative Period , Preoperative Period , Recurrence , Retrospective Studies , Risk Factors
2.
J Gastroenterol ; 54(3): 249-260, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30219994

ABSTRACT

BACKGROUND: Capsule endoscopy can be used to identify the early stage of small bowel Crohn's disease (CD). We evaluated significant small bowel capsule endoscopy (SBCE) findings that can lead to early diagnosis of CD. METHODS: We retrospectively accumulated clinical and SBCE data of 108 patients (63 with and 45 without CD). Types of small bowel mucosal injuries, including erosion, ulceration, and cobblestone appearance, and the alignment of diminutive lesions were compared between patients with and without CD. Inter- and intra-observer agreement in the determination of lesions was assessed in 25 pairs of SBCE from the two groups. RESULTS: Under SBCE, cobblestone appearance (33% vs. 2%, p < 0.0001), longitudinal ulcers (78% vs. 20%, p < 0.0001), and irregular ulcers (84% vs. 60%, p < 0.01) were more frequently found in patients with CD. Linear erosion (90% vs. 38%, p < 0.0001) and irregular erosion (89% vs. 64%, p < 0.005) were also more frequent in patients with CD. Furthermore, circumferential (75% vs. 9%, p < 0.0001) and longitudinal (56% vs. 7%, p < 0.0001) alignment of diminutive lesions, mainly observed in the 1st tertile of the small bowel, was more frequent in patients with CD. Good intra-observer agreement was found for ulcers, cobblestone appearance, and lesion alignment. However, inter-observer agreement of SBCE findings differed among observers. CONCLUSIONS: Circumferential or longitudinal alignment of diminutive lesions, especially in the upper small bowel, may be a diagnostic clue for CD under SBCE, while inter-observer variations should be cautiously considered when using SBCE.


Subject(s)
Crohn Disease/diagnosis , Adult , Aged , Capsule Endoscopy , Case-Control Studies , Crohn Disease/classification , Crohn Disease/pathology , Female , Humans , Intestinal Mucosa/pathology , Japan , Male , Middle Aged , Observer Variation , Retrospective Studies , Sensitivity and Specificity , Video Recording
3.
Gut Liver ; 11(5): 628-634, 2017 Sep 15.
Article in English | MEDLINE | ID: mdl-28395508

ABSTRACT

BACKGROUND/AIMS: Gastric cancers develop even after successful Helicobacter pylori eradication. We aimed to clarify the characteristics of early gastric cancers discovered after H. pylori eradication. METHODS: A total of 1,053 patients with early gastric cancer treated by endoscopic submucosal dissection were included. After matching the propensity score, we retrospectively investigated the clinicopathological features of 192 patients, including 96 patients who had undergone successful H. pylori eradication (Hp-eradicated group) and 96 patients who had active H. pylori infection (Hp-positive group). RESULTS: In the Hp-eradicated group, early gastric cancers were discovered 1 to 15 years (median, 4.1 years) after H. pylori eradication. Compared with Hp-positive patients, Hp-eradicated patients showed a more frequently depressed configuration (81% vs 53%, respectively, p<0.0001) and a higher trend toward submucosal invasion (18% vs 8%, respectively, p=0.051). A multivariable analysis revealed the macroscopic depressed type to be characteristics of early gastric cancers after H. pylori eradication. Among patients in the Hp-eradicated group, metachronous cancers showed less frequent depressed lesions (68% vs 84%, respectively, p=0.049) and smaller tumor sizes (median, 11 mm vs 14 mm, respectively, p=0.014) than primary cancers. CONCLUSIONS: Early gastric cancers after H. pylori eradication are characterized by a depressed configuration. Careful follow-up endoscopies are necessary after H. pylori eradication.


Subject(s)
Gastric Mucosa/pathology , Helicobacter Infections/complications , Helicobacter pylori , Neoplasms, Second Primary/pathology , Stomach Neoplasms/pathology , Adult , Aged , Aged, 80 and over , Anti-Bacterial Agents/therapeutic use , Case-Control Studies , Female , Gastric Mucosa/microbiology , Helicobacter Infections/drug therapy , Humans , Male , Middle Aged , Multivariate Analysis , Neoplasms, Second Primary/microbiology , Propensity Score , Retrospective Studies , Risk Factors , Stomach Neoplasms/microbiology
4.
Nihon Shokakibyo Gakkai Zasshi ; 114(3): 445-449, 2017.
Article in Japanese | MEDLINE | ID: mdl-28260712

ABSTRACT

A 19-year-old woman, who had been receiving hormone replacement therapy for 13 months before the diagnosis of mosaic Turner syndrome (46XXp-/45X), developed Crohn's colitis and erythema nodosum of the lower legs. Colonoscopy revealed an anal fistula and the presence of deep longitudinal ulcers with cobblestoning in the colorectum. Therapy with prednisolone and adalimumab was effective for the intestinal and skin lesions. To date, all seven case reports of Turner syndrome in Japan have also developed Crohn's disease after hormone therapy, suggesting a possible association of sex hormones in the pathogenesis.


Subject(s)
Chromosomes, Human, X , Crohn Disease/etiology , Hormone Replacement Therapy/adverse effects , Turner Syndrome/complications , Turner Syndrome/drug therapy , Colonoscopy , Crohn Disease/diagnostic imaging , Female , Humans , Tomography, X-Ray Computed , Young Adult
5.
Clin Gastroenterol Hepatol ; 14(6): 809-815.e1, 2016 06.
Article in English | MEDLINE | ID: mdl-26538205

ABSTRACT

BACKGROUND & AIMS: Some studies have reported a high incidence of small bowel injuries in 60%-80% of subjects who take nonselective nonsteroidal anti-inflammatory drugs and PPIs simultaneously. We performed a randomized, double-blind, controlled study to determine whether proton pump inhibitors (PPIs) exacerbate nonsteroidal anti-inflammatory drug-induced small bowel injury. METHODS: Fifty-seven healthy subjects were randomly assigned groups given the cyclooxygenase (COX) 2 inhibitor celecoxib (200 mg, twice daily) plus placebo for 2 weeks (COX-2 + placebo group, n = 30), or celecoxib plus the PPI rabeprazole (20 mg, once daily) for 2 weeks (COX-2 + PPI group, n = 27). The study was performed from October 2012 through September 2013 at a tertiary medical center in Japan. All subjects were evaluated by capsule endoscopy at the start of the study and then after 2 weeks administration of celecoxib with rabeprazole or placebo. The incidence rates and the numbers of small bowel injuries (ulcers and erosions) that were observed under capsule endoscopy were compared between groups. The primary endpoint was the incidence of mucosal injuries at the second capsule endoscopy examination. RESULTS: A significantly higher proportion of subjects in the COX-2 + PPI group developed small bowel injury (12 of 27 subjects; 44.4%) than in the COX-2 + placebo group (5 of 30 subjects; 16.7%; P = .04). Subjects in the COX-2 + PPI group had a significant increase in risk of small bowel injury compared with the COX-2 + placebo group (relative risk, 2.67; 95% confidence interval, 1.08-6.58). The number of erosions in each member of the COX-2 + PPI group was greater than in each member of the COX-2 + placebo group (P = .02). The number of ulcers did not differ between groups. Twenty-six percent of subjects in the COX-2 + PPI group developed mucosal injury in the jejunum, compared with none of the subjects in the COX-2 + placebo group (P = .003); no such trend was found in the ileum. CONCLUSIONS: In a randomized, controlled trial, PPIs increased the risk of short-term nonsteroidal anti-inflammatory drug-induced small bowel injury. UMIN clinical trial registry number: UMIN000008883.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/administration & dosage , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Intestinal Diseases/chemically induced , Intestinal Diseases/epidemiology , Proton Pump Inhibitors/administration & dosage , Proton Pump Inhibitors/adverse effects , Adult , Capsule Endoscopy , Celecoxib/administration & dosage , Celecoxib/adverse effects , Double-Blind Method , Female , Healthy Volunteers , Humans , Incidence , Intestinal Diseases/pathology , Intestinal Mucosa/pathology , Japan/epidemiology , Male , Placebos/administration & dosage , Prospective Studies , Rabeprazole/administration & dosage , Rabeprazole/adverse effects , Tertiary Care Centers
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