No abstract available.
Enoxacin* ; Humans ; Male* ; Urethritis*

The common causes of lower gastrointestinal bleeding in children are intussusception, rectal juvenile polyp, chronic inflammatory colitis and Meckel's diverticulum. Bleeding from Dieulafoy's ulcer at the lower gastrointestinal tract is rare, but this often occurs in the rectum. So far, there has been no report that a Dieulafoy lesion in the ileocecal valve might be formed after acute colitis in a pediatric patient. In this case report, a Dieulafoy-like lesion at the ileocecal valve caused lower gastrointestinal bleeding in an asymptomatic 14-year-old woman. A careful history taking and medical examination are mandatory to identify the bleeding focus in the GI tract and this can be treated by endoscopy.
Adolescent ; Child ; Colitis ; Female ; Gastrointestinal Tract ; Hemorrhage ; Humans ; Ileocecal Valve ; Intussusception ; Lower Gastrointestinal Tract ; Meckel Diverticulum ; Polyps ; Rectum ; Ulcer

Patients with altered anatomy such as a Roux-en-Y anastomosis often present with various pancreaticobiliary problems requiring therapeutic intervention. However, a conventional endoscopic approach to the papilla is very difficult owing to the long afferent limb and acute angle of a Roux-en-Y anastomosis. Balloon-assisted enteroscopy can be used for endoscopic retrograde cholangiopancreatography (ERCP) in patients with altered anatomy. We experienced six cases of Roux-en-Y anastomosis with biliary problems, and attempted ERCP using single balloon enteroscopy (SBE). SBE insertion followed by replacement with a conventional endoscope was attempted in five of six patients. The papilla was successfully approached using SBE in all cases. However, therapeutic intervention was completed in only three cases because of poor maneuverability caused by postoperative adhesion. We conclude that in patients with Roux-en-Y anastomosis, the ampulla can be readily accessed with SBE, but longer dedicated accessories are necessary to improve this therapeutic intervention.
Anastomosis, Roux-en-Y* ; Cholangiopancreatography, Endoscopic Retrograde* ; Endoscopes ; Extremities ; Gastrectomy* ; Humans

PURPOSE: In order to determine the value of first-pass MR imaging in the diagnosis of myocardial ischemia, first-pass perfusion abnormality of coronary artery stenosis was observed in MRI after gadopentate dimeglumine (Gd-DTPA) enhancement. MATERIALS AND METHODS: The left anterior descending (LAD) coronary arteries of six dogs were subjected to approximately 70% stenosis confirmed by coronary angiography. Half an hour after adenosine and 99mTc-sestamibi infusion, Gd-DTPA (0.2 mmol/kg) and methylene blue were administered and termination was induced with potassium chloride. SE T1-weighted and single-photon emission computed tomography (SPECT) images were subsequently obtained and the findings of perfusion defect compared with specimen stain. Three dimensionally reconstructed MR images were used to measure signal intensity (SI) of normal myocardium and perfusion defect from their sectional and total volume. RESULTS: Five of six dogs with LAD artey stenosis ranging from 66% to 73% displayed perfusion defect on MRI, SPECT, and specimen stain, but the remaining dog with stenosis of 58% showed no such defect. MRI showed the perfusion defect as distinct low SI, enabling the measurement of percentage perfusion defect (24.4+/-5.4%), which increased inferiorly. SI of normal myocardium and perfusion defect decreased inferiorly; their difference indicated stenosis-induced perfusion loss according to section location. Volumetric SI of normal myocardium and perfusion defect were 3.42+/-0.52 and 2.16+/-0.45, respectively (p < 0.05). CONCLUSION: Gd-DTPA enhanced MRI displayed first-pass perfusion abnormality of coronary artery stenosis as perfusion defect with distinct low SI ; this enabled the measurement of its volume and SI changes according to section location, and thus indicated the value of first-pass MR imaging in the diagnosis of myocardial ischemia.
Adenosine ; Animals ; Constriction, Pathologic ; Coronary Angiography ; Coronary Stenosis* ; Coronary Vessels* ; Diagnosis ; Dogs ; Gadolinium DTPA* ; Magnetic Resonance Imaging* ; Methylene Blue ; Myocardial Ischemia ; Myocardium ; Perfusion* ; Potassium Chloride ; Technetium Tc 99m Sestamibi ; Tomography, Emission-Computed ; Tomography, Emission-Computed, Single-Photon

PURPOSE: A colorectal carcinoma is the fourth most common malignancy in the world. Unfortunately, only approximately 20% of the liver metastases are resectable at the initial presentation. Neoadjuvant chemotherapy has been used for downsizing in unresectable disease. In addition, the use of newer biologic agents, such as cetuximab and bevacizumab, has much improved responses in patients with unresectable colorectal liver metastases. The aim of this study was to report on patients who had received a curative resection following neoadjuvant chemotherapy including a molecularly targeted agent for unresectable colorectal liver metastases. METHODS: Following the neoadjuvant chemotherapy using cetuximab plus FOLFIRI (irinotecan and infused fluorouracil plus leucovorin) or bevacizumab plus FOLFOX (oxaliplatin and infused fluorouracil plus leucovorin), 10 patients with initially unresectable colorectal liver metastases underwent a curative surgical resection between September 2005 and June 2007. RESULTS: One patient underwent a right lobectomy, three patients a segmentectomy and five a wedge resection with or without radiofrequency ablation. With a median postoperative follow-up of 14 months (range, 1 to 22 months), five recurrences (50%) occurred. The common toxic effects were grade 2/3 skin toxicity (60%), grade 4 hematologic toxicity (20%), grade 3 gastrointestinal toxicity (10%), and grade 3 neurologic toxicity (10%). CONCLUSIONS: Our preliminary data suggests that neoadjuvant chemotherapy including a molecularly targeted agent may improve resectability in patients with initially unresectable colorectal liver metastases although a high recurrence rate exists. Randomized prospective studies comparing neoadjuvant chemotherapy including a targeted agent in cases of unresectable colorectal liver metastases are warranted.
Antibodies, Monoclonal, Humanized ; Bevacizumab ; Cetuximab ; Colorectal Neoplasms ; Fluorouracil ; Follow-Up Studies ; Humans ; Liver ; Mastectomy, Segmental ; Neoplasm Metastasis ; Recurrence ; Skin

The aim of the study is to investigate the association between cerebral white matter hyperintensity (WMH) and the functional improvement using the Korean version of Modified Barthel Index (K-MBI) score during inpatient stroke rehabilitation. One hundred sixty participants were divided into 2 groups based on the severity of WMH according to Fazekas scale: Mild WMH group was defined as patients with Fazekas scale 0 and 1, and severe WMH group was defined as Fazekas scale 2 and 3. Functional status was assessed using the K-MBI score, and functional gains were calculated from the K-MBI score. The absolute functional gain in mild WMH group was significantly higher compared to severe WMH group (p < 0.05). In addition, patients in mild WMH had higher absolute functional efficiency, rehabilitation effectiveness, and relative functional efficiency. In the generalized linear model analyses, there was an association between functional outcomes and severity of WMH. In this study, the severity and extent of WMH are significantly correlated with poor functional improvement in patients with ischemic stroke. The WMH could be considered as one of many factors that can influence functional recovery during rehabilitation of stroke.
Humans ; Inpatients ; Linear Models ; Recovery of Function ; Rehabilitation ; Stroke ; White Matter

BACKGROUND/AIMS: We attempted to investigate the prognosis of signet-ring cell carcinoma (SRC) patients who underwent curative surgery by comparing them with age-, sex-, and stage-matched non-mucinous adenocarcinoma (NMAC) patients. METHODS: Between January 2003 and December 2011, 19 patients with primary SRC of the colorectum underwent curative surgery. Four SRC patients under the age of 40 were excluded, and the clinicopathological data of 15 patients (7 men; median age, 56 years) were reviewed and compared with the data of 75 NMAC patients matched by age, sex, and pathologic stage. RESULTS: The median follow-up duration was 30.1 months for the SRC group and 43.7 months for the NMAC group (P=0.141). Involvement of the left side of the colon (73.3% vs. 26.7%, P=0.003) and infiltrative lesions such as Borrmann types 3 and 4 (85.7% vs. 24.0%, P=0.001) were more common in the SRC group than in the NMAC group. The five-year overall survival rate was significantly lower for patients with SRC than for those with NMAC (46.0% vs. 88.7%, hazard ratio, 6.99; 95% confidence interval, 2.33-20.95, P=0.001). CONCLUSIONS: Patients with even resectable primary colorectal SRC had a poorer prognosis than age-, sex-, and stage-matched colorectal NMAC patients.
Adenocarcinoma ; Colon ; Colorectal Neoplasms ; Follow-Up Studies ; Humans ; Male ; Prognosis* ; Survival Rate

BACKGROUND/AIMS: Endoscopic ultrasound-guided fine needle aspiration and/or biopsy (EUS-FNA/B) have been used to diagnose subepithelial tumors (SETs) and extraluminal lesions in the gastrointestinal tract. Our group previously reported the usefulness of EUS-FNA/B for rectal and perirectal lesions. This study reports our expanded experience with EUS-FNA/B for rectal and perirectal lesions in terms of diagnostic accuracy and safety. We also included our new experience with EUS-FNB using the recently introduced ProCore needle. METHODS: From April 2009 to March 2014, EUS-FNA/B for rectal and perirectal lesions was performed in 30 consecutive patients. We evaluated EUS-FNA/B performance by comparing histological diagnoses with final results. We also investigated factors affecting diagnostic accuracy. RESULTS: Among 10 patients with SETs, EUS-FNA/B specimen results revealed a gastrointestinal stromal tumor in 4 patients and malignant lymphoma in 1 patient. The diagnostic accuracy of EUS-FNA/B was 50% for SETs (5/10). Among 20 patients with non-SET lesions, 8 patients were diagnosed with malignant disease and 7 were diagnosed with benign disease based on both EUS-FNA/B and the final results. The diagnostic accuracy of EUS-FNA/B for non-SET lesions was 75% (15/20). The size of lesions was the only factor related to diagnostic accuracy (P=0.027). Two complications of mild fever and asymptomatic pneumoperitoneum occurred after EUS-FNA/B. CONCLUSIONS: The overall diagnostic accuracy of EUS-FNA/B for rectal and perirectal lesions was 67% (20/30). EUS-FNA/B is a clinically useful method for cytological and histological diagnoses of rectal and perirectal lesions.
Biopsy* ; Biopsy, Fine-Needle ; Diagnosis ; Endoscopic Ultrasound-Guided Fine Needle Aspiration* ; Fever ; Gastrointestinal Stromal Tumors ; Gastrointestinal Tract ; Humans ; Lymphoma ; Needles ; Pneumoperitoneum ; Rectum

BACKGROUND/AIMS: Endoscopic ultrasound-guided fine needle aspiration and/or biopsy (EUS-FNA/B) have been used to diagnose subepithelial tumors (SETs) and extraluminal lesions in the gastrointestinal tract. Our group previously reported the usefulness of EUS-FNA/B for rectal and perirectal lesions. This study reports our expanded experience with EUS-FNA/B for rectal and perirectal lesions in terms of diagnostic accuracy and safety. We also included our new experience with EUS-FNB using the recently introduced ProCore needle. METHODS: From April 2009 to March 2014, EUS-FNA/B for rectal and perirectal lesions was performed in 30 consecutive patients. We evaluated EUS-FNA/B performance by comparing histological diagnoses with final results. We also investigated factors affecting diagnostic accuracy. RESULTS: Among 10 patients with SETs, EUS-FNA/B specimen results revealed a gastrointestinal stromal tumor in 4 patients and malignant lymphoma in 1 patient. The diagnostic accuracy of EUS-FNA/B was 50% for SETs (5/10). Among 20 patients with non-SET lesions, 8 patients were diagnosed with malignant disease and 7 were diagnosed with benign disease based on both EUS-FNA/B and the final results. The diagnostic accuracy of EUS-FNA/B for non-SET lesions was 75% (15/20). The size of lesions was the only factor related to diagnostic accuracy (P=0.027). Two complications of mild fever and asymptomatic pneumoperitoneum occurred after EUS-FNA/B. CONCLUSIONS: The overall diagnostic accuracy of EUS-FNA/B for rectal and perirectal lesions was 67% (20/30). EUS-FNA/B is a clinically useful method for cytological and histological diagnoses of rectal and perirectal lesions.
Biopsy* ; Biopsy, Fine-Needle ; Diagnosis ; Endoscopic Ultrasound-Guided Fine Needle Aspiration* ; Fever ; Gastrointestinal Stromal Tumors ; Gastrointestinal Tract ; Humans ; Lymphoma ; Needles ; Pneumoperitoneum ; Rectum

Background/Aims: Post-infectious irritable bowel syndrome (PI-IBS) is characterized by chronic gastrointestinal symptoms that arise following an episode of infectious enteritis. The incidence rates vary, ranging from 5% to 32% and the risk factors are not well known. We aim to investigate the incidence and risk factors of PI-IBS in enteritis patients admitted to university hospitals in Korea. Methods: This multi-center prospective study was conducted in patients hospitalized for infectious enteritis. Each patient underwent 1 outpatient visit and 3 telephone surveys during the first year after discharge to determine if PI-IBS occurred within the follow-up period. Results: In the 3-month survey, 7 out of 354 patients (2%) were diagnosed with PI-IBS, and after 1 year, only 1 patient met the criteria for IBS.No statistically significant difference was found between the PI-IBS group and the non-PI-IBS group in terms of age, sex, underlying diseases, medication history, gastrointestinal symptoms, enteritis location, causative strain, hospitalization and treatment periods, and laboratory findings. Female sex (P = 0.003), enteropathogenic Escherichia coli (EPEC) infection (P = 0.044), and a longer total treatment period (P = 0.018) were independent risk factors for diarrhea lasting ≥ 3 months after enteritis. Conclusions The incidence of PI-IBS in Korea was relatively low, and most cases improved over time. No risk factors associated with the development of PI-IBS were found. However, persistent diarrhea after enteritis was associated with female sex, EPEC infection, and severe or long-lasting enteritis. IBS symptoms may persist after severe enteritis but usually improve with time.