Indication and Clinical Outcomes of Percutaneous Endoscopic Gastrostomy: A Single-center Retrospective Analysis

BACKGROUND/AIMS: Percutaneous endoscopic gastrostomy (PEG) is performed to provide enteral nutrition to patients who require tube-feeding support due to impaired oral intake. As life expectancy increases, the need for, and use of PEG also tend to increase. We aimed to evaluate the indications and complications of PEG insertion, and to investigate any differences in the complication group. MATERIALS AND METHODS: We conducted a retrospective analysis of 109 patients who received a PEG procedure between April 2011 and April 2016 in the Korea University Ansan Hospital. We reviewed the indications and complications related to PEG insertion and time interval of tube change. RESULTS: Among 109 patients who underwent a PEG procedure, 71.6% were male, and the mean age was 68.2 years. The most common indications for PEG were central nervous system diseases, including stroke (33.9%), cerebral hemorrhage (29.4%), and hypoxic brain damage (8.3%). The overall complication rate was 14.7%, and the most common complication was peristomal infection (7.3%). Most of the complications occurred within 10 days in 14 of 16 patients (87.5%). The patients with complications were older than those without complications (74.6±11.1 vs. 67.1±14.0 years, P=0.043). The mean time interval for gastrostomy tube change was 7.3 months. CONCLUSIONS: The most common indication of PEG was brain disease, and the complication rate cannot be ignored. Careful attention is needed after a PEG procedure especially in elderly patients.

Predictors of Inadequate Bowel Preparation and Salvage Options on Colonoscopy

Inadequate bowel preparation is observed in more than 25% of all colonoscopies. Identification of predictive factors for inadequate colon cleaning is helpful and more detailed preparation methods should be used for patients at high risk. Age, male sex, inpatient status, and comorbidities were identified as independent risk factors in several previous studies. In patients with insufficient colon preparation, colon irrigation with endoscopic pumps or next-day colonoscopy following further bowel cleaning should be performed. In order to improve the efficacy and safety of both bowel preparation and colonoscopy, the endoscopic team should identify the patient's medical conditions and choose the optimal bowel preparation agent and regimen.

Melanocytic Nevus on the Rectal Mucosa Removed Using Endoscopic Submucosal Dissection

Melanocytic nevus is the benign proliferation of melanocytes. The most common location of melanocytic nevus is the skin of the extremities; however, there are few case reports of melanocytic nevus at the rectal mucosa. No prior case of malignant melanoma from melanocytic nevus at the rectal mucosa has been reported; therefore, it is unclear whether resection should be performed or close observation is sufficient. However, the potential malignant transformation of melanocytic nevus should be considered, including melanocytic nevus on the rectum. Melanocytic nevus of the skin can be removed by surgical excision; however, due to rare incidence on the mucosa of the gastrointestinal tract, the optimal treatment for rectal melanocytic nevus remains controversial. Here, we report the first case of melanocytic nevus on the rectal mucosa that was removed by endoscopic submucosal dissection. This case report provides useful information about the optimal management of rectal melanocytic nevus.

A Case of Massive Pulmonary Embolism in Systemic Lupus Erythematosus without Antiphospholipid Antibody

Patients with systemic lupus erythematosus (SLE) are at an increased risk of developing thromboses with antiphospholipid antibodies (aPL). The presence of aPL is related to an increased risk of thrombotic events. However, thromboembolic events can occur in SLE patients without aPL, and pulmonary emboli are rarely reported manifestations of SLE without aPL. Here, we report on a case of massive pulmonary embolism in a 58-year-old woman with aPL-negative SLE. She presented with chest pain and dyspnea, and chest computed tomography (CT) and lung perfusion ventilation scans showed pulmonary thromboembolism. She was administered thrombolytic agents, heparin, and warfarin. Two months later, no remarkable residual thromboembolism was observed on chest CT.