Introduction: The 2021 IDF-DAR risk calculator had been previously evaluated in multiple studies and subsequently widely accepted and applied in clinical practice as a practical standardized tool for patient risk stratification. Recently updated, the 2026 IDF-DAR Risk calculator enables a more individualized, evidence-related evaluation of patientrelated and disease-related risk factors, incorporating modern diabetes technologies, including continuous glucose monitoring (CGM), automated insulin delivery (AID) systems, and advanced insulin formulations to enhance risk stratification. This tool allows medical professionals to tailor Ramadan practices based on overall factors toward promoting safe fasting. Methodology: This prospective multicentre observational study recruited adults with Type 1 and Type 2 diabetes attending public hospitals nationwide. People with diabetes (PwD) intending to perform Ramadan fasting were invited to participate and assessed using the 2026 IDF-DAR Risk Calculator in the 6-week pre-Ramadan period between 30th January and 19th March 2026. Results: A total of 458 PwD were evaluated and stratified into low (15.7%), moderate (41%), and high risk (43.3%) categories. Most participants had Type 2 diabetes (83.6%), with 60.3% having a disease duration exceeding 10 years and 43% exhibiting poor glycemic control (hemoglobin A1c >9%). Insulin therapy was used by 76.4% of participants, including two individuals with Type 1 diabetes using AID systems. Most participants reported no recent hypoglycemia (76.4%), 81.0% performed glucose monitoring, and 3.3% used CGM. Severe comorbidities were uncommon, with 1.1% having unstable macrovascular disease and 4.4% advanced chronic kidney disease (estimated glomerular filtration rate <30). Notably, 72.2% received structured Ramadan education. Conclusion Majority of PwD attending tertiary diabetes clinics were in the moderate- to high-risk category and intended to fast despite medical advice against fasting in some cases. Although most participants were on insulin therapy, hypoglycemia was low in the pre-Ramadan period. Integration of modern technologies, advanced insulin therapies, and structured education may support safer fasting practices.
Risk Assessment ; Diabetes Mellitus ; Hospitals ; Fasting

BACKGROUND: In many countries, nephrologists follow clinical practice guidelines for mineral bone disorders to control secondary hyperparathyroidism (SHPT) associated with abnormal serum calcium (Ca) and phosphorus (P) levels in patients undergoing maintenance hemodialysis (MHD). The Kidney Disease Outcomes Quality Initiative (KDOQI) Guidelines have long been used in Korea, and this study was undertaken to investigate the current status of serum Ca and P control in MHD patients. METHODS: Data were collected from a total of 1,018 patients undergoing MHD without intercurrent illness, in 17 hemodialysis centers throughout the country. Serum levels of Ca, P, and intact parathyroid hormone (iPTH) were measured over 1 year, and the average values were retrospectively analyzed. RESULTS: Serum levels of Ca, P, and the CaxP product were 9.1+/-0.7mg/dL, 5.3+/-1.4mg/dL, and 48.0+/-13.6mg2/dL2, respectively. However, the percentages of patients with Ca, P, and Ca x P product levels within the KDOQI guideline ranges were 58.7%, 51.0%, and 70.7%, respectively. Of the 1,018 patients, 270 (26.5%) had iPTH >300pg/mL (uncontrolled SHPT), whereas 435 patients (42.7%) showed iPTH <150pg/mL. Patients with uncontrolled SHPT had significantly higher values of serum Ca, P, and CaxP product than those with iPTH < or =300pg/mL. CONCLUSION: Despite the current clinical practice guidelines, SHPT seems to be inadequately controlled in many MHD patients. Uncontrolled SHPT was associated with higher levels of serum Ca, P, and Ca x P product, suggestive of the importance of SHPT management.
Calcium* ; Humans ; Hyperparathyroidism, Secondary ; Kidney Diseases ; Korea ; Parathyroid Hormone ; Phosphorus* ; Renal Dialysis* ; Retrospective Studies

Congenital pseudoarthrosis of the clavicle is a rare disorder of the shoulder girdle, with only approximately 200 individual cases having been reported in the world literature to date. A persistent left superior vena cava (SVC) is the most common thoracic venous anomaly, and has been observed in 0.3% of the general population. Mesocardia and an aneurysm of the main pulmonary artery, associated with bicuspid pulmonary valves, are both extremely rare entities. We report the first case of a 23 year-old man with the above mentioned complex congenital anomaly.
Aneurysm ; Bicuspid ; Clavicle* ; Humans ; Pseudarthrosis* ; Pulmonary Artery ; Pulmonary Valve ; Shoulder ; Vena Cava, Superior ; Young Adult

Cirrhotic patients with portal hypertension are often found to have changes in their colonic mucosa. Such mucosal changes are termed portal hypertensive colopathy. Most patients with portal hypertension remained asymptomatic but some may show massive bleeding. The mainstay of treatment for portal hypertensive gastropathy include non-surgical methods such as octreotide injection, endoscopic hemostasis, and interventional methods such as TIPS. However, treatment for portal hypertensive colopathy remained unresolved. The authors here report a case of a 41 year old male with liver cirrhosis admitted for fever and abdominal pain, who reported an episode of hematochezia in the course of admisssion period. Subsequent colonoscopy revealed angiodysplasia-like lesions throughout the entire colon. We observed that such lesions were the source of hematochezia and that direct clipping with octreotide injection was successful in controlling the bleeding.
Abdominal Pain ; Adult ; Colon ; Colonoscopy ; Fever ; Gastrointestinal Hemorrhage ; Hemorrhage* ; Hemostasis, Endoscopic ; Humans ; Hypertension, Portal ; Liver Cirrhosis ; Male ; Mucous Membrane ; Octreotide*

Dieulafoy's lesion is a very rare cause of gastrointestinal bleeding that occurs after rupture of an exposed submucosal artery. The majority of lesions are found in the stomach, but rarely it has also been identified in the duodenum, small bowel, colon and rectum. We describe a 78-year-old female with chronic renal failure who presented with melena and was subsequently found to have a Dieufaloy-like lesion in the stomach. The bleeding was successfully managed by endoscopic hemoclipping. During the follow-up, massive gastrointestinal bleeding was developed by a Dieulafoy-like lesion in the rectum. This lesion was managed by endoscopic band ligation, but there was recurrent bleeding from the ulcer site. The ulcer site was locally excised and primary closure was carried out.
Aged ; Arteries ; Colon ; Duodenum ; Female ; Follow-Up Studies ; Hemorrhage* ; Humans ; Kidney Failure, Chronic* ; Ligation ; Melena ; Rectum* ; Rupture ; Stomach* ; Ulcer

Anesthesiologists may encounter pulmonary thromboembolism during the perioperative period. However, the diagnosis of pulmonary thromboembolism is difficult because clinical symptoms and signs are not specific, and specialized diagnostic tools are not readily available in the operating room. We report a case of pulmonary thromboembolism during modified radical mastectomy. A 52 year old female patient underwent modified radical mastectomy under general anesthesia. 90 minutes after induction there were a sudden increase of peak airway pressure and a decrease of oxygen saturation. We treated symptomatically under the impression of pulmonary edema during operation. After operation, pulmonary thromboembolism was diagnosed and treated successfully with oxygen therapy and anticoagulant therapy. After 26th days of operation she was no longer suffered from hypoxia. At the 36th day after operation, she was discharged without any sequelae.
Anesthesia, General ; Anoxia ; Diagnosis ; Female ; Humans ; Mastectomy, Modified Radical* ; Middle Aged ; Operating Rooms ; Oxygen ; Perioperative Period ; Pulmonary Edema ; Pulmonary Embolism*

PURPOSE: Childhood acute immune thrombocytopenic purpura (ITP) is a benign hematologic disease. Therapy does not affect the natural history of the illness. We evaluated the clinical and laboratory findings, treatment and prognosis of childhood acute ITP in Korea through a retrospective multicenter study. METHODS: We analyzed retrospectively the data of 1, 829 children with acute ITP through survey of 33 hospitals among 43 hospitals in Korea from Sep. 1992 to Aug. 2001. RESULTS: Male to female ratio was 1.3: 1 and the median age at the diagnosis of ITP was 2.9 (0.1 17) years. Median duration of follow up was 6 months. One hundred and forty nine cases of the total 1, 829 patients (8.1%) received no treatment. The initial median platelet count of the non-treated group was 42, 500/mm3. Among the 861 cases who were followed up over 6 months, 315 cases (36.6%) progressed into chronic ITP. Associated with this high rate of chronicity of childhood acute ITP patients in Korea, we must consider the fact that acute ITP patients with fast improvement in the first episode tend not to follow up. Considering that fact, the rate of chronicity becomes 17.2% of the 1, 829 acute ITP patients. The treated group used many kinds of treatment methods. Intravenous immunoglobulins (IVIG) with or without prednisolone (PD) (67.5%) were the most commonly used regimens. In the group treated with IVIG alone, the platelet count began to rise above 50, 000/mm3 at 2.6 days, 100, 000/mm3 at 3.7 days and 150, 000/mm3 at 4.9 days. Four hundred and twenty two cases of the 1, 686 (25.0%) cases followed up after first episode of ITP relapsed. The relapse rate was significantly higher in older patients and in girls than in younger patients and in boys (P< 0.05). The chronicity of ITP statistically increased with age (P< 0.05) and that was the only valuable factor. CONCLUSION: Despite the fact that childhood acute ITP is a pretty common disaese, there is no agreement on the best treatment method for this disease. The establishment of Korean treatment guideline of childhood acute ITP, based on an analysis of multicenters, seems to be needed.
Child ; Diagnosis ; Female ; Follow-Up Studies ; Hematologic Diseases ; Humans ; Immunoglobulins, Intravenous ; Korea* ; Male ; Natural History ; Platelet Count ; Prednisolone ; Prognosis ; Purpura, Thrombocytopenic, Idiopathic* ; Recurrence ; Retrospective Studies

OBJECTIVE: The aim of this study is to determine effects of nefazodone on depression, anxiety, sleep and sexual function in depressive patients. SUBJECTS AND METHODS: This is an open, non-comparative, multi-center study. Antidepressant and other clinical effects of nefazodone were evaluated in 230 patients of 26 centers, aged 14 years or more, who met DSM-IV criteria to major depressive disorder or dysthymic disorder and didn't have other psychiatric disorders and were physically healthy. The clinical efficacy was assessed at week 1, 2, 4 and 8 using Clinical Global Improvement (CGI), Hamilton Depression Scale (HAM-D), Beck Depression Inventory (BDI), State and Trait Anxiety Inventory-State Anxiety (STAI-SA). Other clinical effects were assessed with Weekly Sleep Questionnaire, Sexual Functioning Questionnaire and GHQ-QOL-12, a scale for quality of life. Adverse drug reactions were checked with a questionnaire. Post-treatment effects of drug were compared with pre-treatment baseline condition. RESULTS: The response rates by Clincal Grobal Improvement and HAM-D after 8 weeks treatment were 62.4% and 75.2% respectively. Comparing to baseline, nefazodone was proved to have significantly higher antidepressant and antianxiety effects in depressive patients and it improved also sleep, sexual functions and quality of life. Both patients and physicians satisfied with the effects of drug. Adverse drug reactions were a few and not serious, and most of them disappeared as treatment continued. CONCLUSION: These results suggest that not only nefazodone has antidepressant effects and antianxiety effects, but also it improves sleep disturbance, sexual dysfunction and the quality of life in depressive patients. Adverse drug reactions were a few and not serious.
Anti-Anxiety Agents ; Anxiety* ; Depression* ; Depressive Disorder, Major ; Diagnostic and Statistical Manual of Mental Disorders ; Drug-Related Side Effects and Adverse Reactions ; Dysthymic Disorder ; Humans ; Quality of Life* ; Surveys and Questionnaires

OBJECTIVE: Catechol-O-methyltransferase(COMT) is an important enzyme that inactivates biologically active or toxic catechols. Abnormal catecholamine transmission has been implicated in the pathogenesis of schizophrenia and bipolar disorder. Polymorphism(Val/Met) of the COMT gene was shown to determine high-and low-activity alleles of the enzyme. This study was designed to investigate the association between COMT gene polymorphism and schizophrenia and bipolar disorder in a Korean population. METHOD: COMT gene were genotyped with polymerase chain reaction and restriction enzyme NlaIII in 128 patients with schizophrenia, 110 with bipolar disorder, and 176 controls. RESULTS: 1) The distribution of the COMT genotype in schizophrenic patients with Val/Val, Val/Met, Met/Met were 76(59.4%), 43(33.6%), 9(7.0%), in bipolar disorder patients were 63(57.3%), 35(31.8%), 12(10.9%), and in the controls were 83(47.2%), 79(44.9%), 14(8.0%). The allele frequencies of the COMT gene in schizophrenic patients with Val and Met were 195(76.2%), 61(23.8%), in bipolar disoreder patients were 161(73.2%), 59(26.8%), and in the controls were 245(69.6%), 107(30.4%). 2) There were no differences in genotype distribution and allele frequencies of COMT gene polymorphism among the 3 groups. Neither patients with schizophrenia nor bipolar disorder differed in the genotype and allelic frequencies from the controls. CONCLUSION: These results suggest COMT gene polymorphism is not causally related to the development of schizophrenia and bipolar disorder in a Korean Population.
Alleles ; Bipolar Disorder* ; Catechol O-Methyltransferase* ; Catechols ; Gene Frequency ; Genotype ; Humans ; Polymerase Chain Reaction ; Schizophrenia*

In endoscopic clinical research studies of patients who take NSAIDs, 10% to 20% of patients develop gastric ulcers and 4% to 10% develop duodenal ulcers. Ulcers associated with chronic NSAIDs use are typically painless and are located in the prepyloric region of the stomach. These characteristics make NSAIDs potential causes of gastric outlet obstruction. There were multiple cases of single or multiple strictures that were found in the esophagus, small bowel and colon. Most of duodenal strictures were confined to bulbar area. Only one case of duodenal second portion diaphragmlike stricture was reported in association with acetylsalicylic acid. We experienced one case of chronic NSAIDs induced duodenal 2nd portion stricture in ankylosing spondylitis and rhemathoid arthritis patient and reported with a review of literature.
Anti-Inflammatory Agents, Non-Steroidal ; Arthritis* ; Aspirin ; Colon ; Constriction, Pathologic* ; Duodenal Ulcer ; Esophagus ; Gastric Outlet Obstruction ; Humans ; Spondylitis, Ankylosing* ; Stomach ; Stomach Ulcer ; Ulcer