Prediction of Severity and Adverse Outcomes Associated with Perforation in Patients Presenting to the Emergency Department with Esophageal Injury

Background/Aims@#Esophageal perforation is associated with high mortality and morbidity in patients presenting to the emergency department (ED) with esophageal injury. We investigated the effectiveness of initial CT scan in patients with esophageal injury to determine the risk factors for complications. @*Methods@#Patients admitted through the ED for evaluation of esophageal injuries between January 2001 and May 2020, were investigated. Demographic data, etiological factors, comorbidities, treatment administered, and outcomes were collected. Esophageal injury was graded based on the following CT criteria: (a) normal, (b) pneumomediastinum, (c) mediastinitis, fluid collection, abscess, or overt esophageal wall injury, and (d) pleural effusion, subcutaneous emphysema, or pneumothorax. Grade 2 was defined as microperforation and grades 3 and 4 as overt perforation. @*Results@#Of 281 patients with esophageal injury, 38 had CT-documented overt perforations and 20 had microperforations. Foreign body-induced injury (n=37), Boerhaave syndrome (n=12), and chemical injury (n=3) were common causes of esophageal injury. Complications occurred in 24 (8.5%) patients. Risk factors for complications were age ≥65 years (OR 4.14, 95% CI 1.18~14.56, P=0.027), cerebrovascular disease (OR 8.58, 95% CI 1.13~65.19, P=0.038), Boerhaave syndrome (OR 12.52, 95% CI 2.07~75.68, P=0.006), chemical injury (OR 15.72, 95% CI 3.67~67.28, P<0.001), and CT-documented grade 4 perforation (OR 15.75, 95% CI 4.39~56.55, P<0.001). @*Conclusions@#Initial CT-based grading in the ED are useful for predicting potential complications and for managing patients with esophageal injury and suspected perforation.

Spontaneous Rupture of the Right Gastroepiploic Artery Immediately after Gastroscopy

Idiopathic spontaneous intraperitoneal hemorrhage is both rare and potentially fatal. The incidence of gastroepiploic artery rupture, especially a non-aneurysmal rupture, is extremely low. We report the case of an elderly woman who was mistakenly diagnosed with procedure-related bleeding after gastroscopy. A 0.3 cm polyp was identified and removed during the procedure. The patient later developed shock due to which gastroscopy was repeated; however, no unusual findings were observed. Therefore, abdominopelvic computerized tomography was performed and gastroepiploic artery rupture was detected. Transcatheter arterial embolization was immediately performed without laparotomy, without any complications. The bleeding was controlled, and the patient was discharged after embolization. It is important to acknowledge the possibility of spontaneous rupture of the visceral arteries in elderly individuals with hypertension or atherosclerosis, especially in the event of sudden abdominal pain or shock immediately after an endoscopic procedure. This is the first case report of idiopathic spontaneous rupture of the right gastroepiploic artery successfully managed by transcatheter arterial embolization in South Korea.

Spontaneous Rupture of the Right Gastroepiploic Artery Immediately after Gastroscopy

Idiopathic spontaneous intraperitoneal hemorrhage is both rare and potentially fatal. The incidence of gastroepiploic artery rupture, especially a non-aneurysmal rupture, is extremely low. We report the case of an elderly woman who was mistakenly diagnosed with procedure-related bleeding after gastroscopy. A 0.3 cm polyp was identified and removed during the procedure. The patient later developed shock due to which gastroscopy was repeated; however, no unusual findings were observed. Therefore, abdominopelvic computerized tomography was performed and gastroepiploic artery rupture was detected. Transcatheter arterial embolization was immediately performed without laparotomy, without any complications. The bleeding was controlled, and the patient was discharged after embolization. It is important to acknowledge the possibility of spontaneous rupture of the visceral arteries in elderly individuals with hypertension or atherosclerosis, especially in the event of sudden abdominal pain or shock immediately after an endoscopic procedure. This is the first case report of idiopathic spontaneous rupture of the right gastroepiploic artery successfully managed by transcatheter arterial embolization in South Korea.

Long-term Prognosis of Localized Lymphoid Hyperplasia of the Rectum

Background/Aims@#Although localized lymphoid hyperplasia (LLH) of the rectum is occasionally observed, its clinical implications are unclear. This study aimed to investigate the clinical course and significance of LLH of the rectum. @*Methods@#We identified 65 patients diagnosed with LLH of the rectum using a histopathologic examination and who received follow-up endoscopies between January 2009 and June 2015. Patients with a history of inflammatory bowel disease, lymphoma, familial adenomatous polyposis, or uncontrolled malignancy and patients who underwent scar biopsy after endoscopic resection or surgery were excluded. Endoscopic findings and clinical courses were analyzed. @*Results@#During the median follow-up of 31 months (interquartile range, 19 to 40 months), 81.5% (53/65) of LLHs of the rectum were resolved. Clinically significant diseases, including ulcerative colitis (UC, n=5) and mucosa-associated lymphoid tissue (MALT) lymphoma (n=1), were diagnosed in 9.2% of patients (6/65). The other six patients showed no significant changes in the lesion (n=3) or a waxing and waning appearance (n=3). According to endoscopic findings, all of the 47 polypoid types showed resolution or waxing and waning patterns. Five of the 11 nodular types (45.5%) developed into UC. One of the seven submucosal tumor (SMT)-like types (14.3%) developed into MALT lymphoma. @*Conclusions@#LLH of the rectum with persistent symptoms or the endoscopic appearance of the nodular or SMT-like type may lead to clinically significant disease. Risk stratification according to endoscopic findings and careful surveillance are required for these lesions.

Case of concurrent Riedel's thyroiditis, acute suppurative thyroiditis, and micropapillary carcinoma

Riedel's thyroiditis (RT) is a rare chronic inflammatory disease of the thyroid gland. It is characterized by a fibroinflammatory process that partially destroys the gland and extends into adjacent neck structures. Its clinical manifestation can mask an accompanying thyroid neoplasm and can mimic invasive thyroid carcinoma. Therefore, diagnosis can be difficult prior to surgical removal of the thyroid, and histopathologic examination of the thyroid is necessary for a definite diagnosis. The concurrent presence of RT and other thyroid diseases has been reported. However, to our knowledge, the association of RT with acute suppurative thyroiditis and micropapillary carcinoma has not been reported. We report a rare case of concurrent RT, acute suppurative thyroiditis, and micropapillary carcinoma in a 48-year-old patient.

A Case of Hyperglycemic Hyperosmolar Syndrome in a Patient with Central Diabetes Insipidus and Type 2 Diabetes Mellitus / 대한내과학회지

Diabetes insipidus is a disorder caused by complete or partial deficiency or unresponsiveness to antidiuretic hormone. Both diabetes mellitus and diabetes insipidus are well-known causes of polyuria and polydipsia. Although Wolfram Syndrome, which is characterized by the concurrence of diabetes mellitus and diabetes insipidus along with optic atrophy and ataxia, is frequently reported, the concurrence of diabetes insipidus and type 2 diabetes mellitus without optic atrophy and deafness is rare. We report a 31-year-old woman presenting with hyperglycemic hyperosmolar syndrome caused by type 2 diabetes mellitus complicated with concurrent central diabetes insipidus.

A Case of Hyperglycemic Hyperosmolar Syndrome in a Patient with Central Diabetes Insipidus and Type 2 Diabetes Mellitus / 대한내과학회지

Diabetes insipidus is a disorder caused by complete or partial deficiency or unresponsiveness to antidiuretic hormone. Both diabetes mellitus and diabetes insipidus are well-known causes of polyuria and polydipsia. Although Wolfram Syndrome, which is characterized by the concurrence of diabetes mellitus and diabetes insipidus along with optic atrophy and ataxia, is frequently reported, the concurrence of diabetes insipidus and type 2 diabetes mellitus without optic atrophy and deafness is rare. We report a 31-year-old woman presenting with hyperglycemic hyperosmolar syndrome caused by type 2 diabetes mellitus complicated with concurrent central diabetes insipidus.

A Case of Acute Emphysematous Pancreatitis / 대한내과학회지

Emphysematous infections of the abdomen are potentially life-threatening conditions that require aggressive medical and surgical management. Emphysematous pancreatitis is an uncommon disease that presents as acute pancreatitis with intra-parenchymal gas at the time of diagnosis. Traditionally, emphysematous pancreatitis is an indication for surgical intervention. However, a few cases of emphysematous pancreatitis, managed successfully without surgical debridement have been reported. We present a case of emphysematous pancreatitis managed medically without surgical debridement in a 56-year-old male.

Gender Differences in Susceptibility to Smoking among Patients with Lung Cancer

BACKGROUND/AIMS: To determine whether female smokers are more or less susceptible to the detrimental pulmonary-function effects of smoking when compared to male smokers among patients with lung cancer. METHODS: Pack-years and pulmonary function indices were compared between 1,594 men and women with lung cancer ifferences in individual susceptibility to smoking were estimated using a susceptibility index formula. RESULTS: Of the patients, 959 (92.8%) men and 74 (7.2%) women were current smokers. Common histological types of lung cancer were squamous cell carcinoma, adenocarcinoma, and small cell carcinoma, among others. Women had a lower number of pack-years, forced expiratory volume in 1 second (FEV1, liters), forced vital capacity (FVC, liters), and total lung capacity (TLC, liters) compared to those of men (25.0 +/- 19.2 vs. 42.9 +/- 21.7 for pack-years; 1.4 +/- 0.5 vs. 2.0 +/- 0.6 for FEV1; 3.0 +/- 0.7 vs. 2.0 +/- 0.6 for FVC; 4.5 +/- 0.8 vs. 5.7 +/- 1.0 for TLC; all p < 0.001). The susceptibility index for women was significantly higher compared to that of men (1.1 +/- 4.1 vs. 0.7 +/- 1.1; p = 0.001). A significant inverse association was shown between the susceptibility index and TLC and FVC (r = -0.200 for TLC, -0.273 for FVC; all p < 0.001). CONCLUSIONS: The results suggest that the detrimental effects of smoking on pulmonary function are greater in women, as compared to those in men, among patients with lung cancer.

Variations in Number of Hospitalized Patients with Cardiopulmonary Diseases Associated with 2009 H1N1 Pandemic Influenza in a Tertiary Teaching Hospital - Comparison with Seasonal Influenza

BACKGROUND: The world encountered the global outbreak of an H1N1 influenza pandemic in 2009. Influenza has accounted for grave outcomes, not only through infectious complications, but also through the exacerbation of underlying chronic diseases. A substantial number of confirmed or probable cases of influenza had been reported during the 2009 H1N1 pandemic in South Korea, but a review of the development of influenza-related complications or the exacerbation of underlying chronic diseases has been absent. This study aims to understand the influence of the 2009 pandemic on the exacerbation of existing cardiopulmonary diseases. MATERIALS AND METHODS: We surveyed the number of hospitalized patients with a diagnosis of pneumonia, asthma, chronic obstructive pulmonary disease, acute myocardial infarctions, and heart failure during the period of the 2009 H1N1 influenza pandemic in a 950-bed teaching hospital in Korea. Three influenza seasons from 2007 to 2009 were compared via a medical records review. Data collection included the number of hospitalizations, patient age, number of deaths from all causes, and underlying medical conditions of fatal patients. RESULTS: The weekly number of cardiopulmonary hospitalizations showed no differences between the 2009 pandemic influenza period and seasonal influenza epidemics (53 and 56 on average, respectively), but the total number of hospitalized patients during the pandemic influenza period was 1481, whereas there were 625 on average for seasonal influenza. The hospitalization rate for patients under five years of age exceeded that of the patients sixty years of age or older in pandemic influenza, and the hospitalization rate of patients twentyfive to fifty-nine during pandemic influenza was significantly higher than that of seasonal influenza outbreaks (P=0.012). On the other hand, the hospitalization rate of the patients sixty years of age or older during the pandemic influenza period significantly fell short of that in past seasonal influenza periods (P<0.001). However, the patients sixty years of age or older had the highest case fatality rate during both periods. The total number of deaths among hospitalized patients with cardiopulmonary diseases in pandemic influenza and seasonal influenza epidemics was 87 and 46 on average, respectively. Weekly fatal cases were 3 and 4. CONCLUSIONS: The cardiopulmonary hospitalization rate during the pandemic period outnumbered that of preceding seasonal influenza epidemics by its extended length. But, the virulence or disease severity of the 2009 H1N1 and seasonal influenza seems to be little different. A larger-scale epidemiological investigation is necessary.

Pulmonary Cryptococcosis Presenting Solitary Pulmonary Nodule in an Immunocompetence: A Case Report and Review of the Korean Literatures

In immunocompetent individuals, pulmonary cryptococcosis is a rarely diagnosed fungal infection. It's common radiological findings are multiple pulmonary nodules. We report a case of pulmonary cryptococcosis in a 67-year-old woman who presented with solitary pulmonary nodule (SPN) on chest computed tomography (CT). She complained of intermittent blood tinged sputum for 10 days. She was a non-smoker and had no clinical evidence of immonosuppression. Pathological examination of the lung tissue core via percutaneous fine needle biopsy revealed chronic granulomatous inflammation compatible with cryptococcosis on the special stain. She received 6 months of antifungal therapy with fluconazole and the SPN was disappeared on the CT after antifungal therapy. We also reviewed that the features of pulmonary cryptococcosis presenting SPN in immnocompetent patients reported in the Korean literatures.