1.Therapeutic Plan for Benign Polypoid Lesion of Gallbladder.
Seung Hyun SHIN ; Bin Na YANG ; Hwan Bong LEE ; Dong Eun PARK ; Kwon Mook CHAE
Journal of the Korean Surgical Society 2007;72(4):314-318
PURPOSE: Since the laparoscopic cholecystectomy became an usual procedure, operative indications of the gallbladder polyps have had the tendency to enlarge. There are no precise management plan about the gallbladder polyps which is not included in the accepted operative indications. Therefore a management plan may be required for the patients who has gallbladder polyps which is not accepted operative indications. METHODS: We retrospectively analysed 106 patients with gallbladder polyps who were diagnosed preoperatively by ultrasound and CT from January 1991 to January 2005. Our operation indications are polyp above 10 mm, symptomatic polyp, sessile polyp, coincidence of stone, focal thickening of gallbladder wall, diffuse wall thickening and detection during other operations. The gallbladder polyps which were suspected to the gallbladder cancer strongly on radiologic studies and polyps above 20 mm size were excluded in this studies. RESULTS: Among the 106 patients, 87 patients underwent operation, and polypoid lesions disappeared during the follow-up period in 3 patients, and 16 patients are on regular follow up. Fifty-six cases received operation with accepted operative indications, and the thirty-one cases underwent operation by the patient's demand. Two groups showed significant difference in true polyp on pathological diagnosis (P < 0.001). There was 16.07% true polyp in opertive indication based 56 patients and no true polyp in patient's demanded 31 cases. The pathologic diagnoses were cholesterol polyp in 27 patients (87.15%), no polyp in 2 patients, adenomatous hyperplasia in 2 patients. The correlation of the polyp size and pathologic diagnosis was an inverse relation to the polyp size and incidence of pseudopolyp (P=0.014). CONCLUSION: We propose that the 6-month-interval follow-up observation is fully safe for polyps sized below 10 mm and not included in accepted operative indications.
Cholecystectomy, Laparoscopic
;
Cholesterol
;
Diagnosis
;
Follow-Up Studies
;
Gallbladder Neoplasms
;
Gallbladder*
;
Humans
;
Hyperplasia
;
Incidence
;
Polyps
;
Retrospective Studies
;
Surgical Procedures, Operative
;
Ultrasonography
2.Late onset of systemic toxicity of local anesthetics in brachial plexus block: A case report.
Saecheol OH ; Ji hyun CHUNG ; Sang Mook LEE ; Kyudon CHUNG ; Ki dong KWON
Anesthesia and Pain Medicine 2012;7(4):372-374
Early onset of systemic toxicity of local anesthetics is a common complication in regional anesthesia. However late onset of systemic toxicity is an unfamiliar phenomenon for an anesthesiologist. We present a case of a late onset of systemic toxicity of local anesthestics in a patient who received brachial plexus block for hand surgery. An hour later after the block, he complained of light-headedness and anxiety. Then he was found to be unconsciousness with involuntary movement of his four extremities. Later his speech became slurred and patient became unresponsive. Following which, general anesthesia was induced and the patient recovered his consciousness after surgery with no sequela related to systemic toxicity with local anesthetics. We observe from this report that considering the time for local anesthetics to reach peak plasma concentration, anesthesiologists should monitor and observe their patient for at least an hour from the completion of brachial plexus block.
Anesthesia, Conduction
;
Anesthesia, General
;
Anesthetics, Local
;
Anxiety
;
Brachial Plexus
;
Consciousness
;
Dizziness
;
Dyskinesias
;
Extremities
;
Hand
;
Humans
;
Organothiophosphorus Compounds
;
Plasma
;
Unconsciousness
3.A Fatal Adverse Effect of Barbiturate Coma Therapy: Dyskalemia.
Hyun Mook KWON ; Jin Wook BAEK ; Sang Pyung LEE ; Jae Ik CHO
Korean Journal of Neurotrauma 2016;12(2):156-158
The management guideline for traumatic brain injury (TBI) recommends high-dose barbiturate therapy to control increased intracranial pressure refractory to other therapeutic options. High-dose barbiturate therapy, however, may cause many severe side effects; the commonly recognized ones include hypotension, immunosuppression, hepatic dysfunction, renal dysfunction, and prolonged decrease of cortical activity. Meanwhile, dyskalemia remains relatively uncommon. In this study, we report the case of a hypokalemic patient with severe rebound hyperkalemia, which occurred as a result of barbiturate coma therapy administered for TBI treatment.
Brain Injuries
;
Coma*
;
Humans
;
Hyperkalemia
;
Hypokalemia
;
Hypotension
;
Immunosuppression
;
Intracranial Pressure
4.Appropriate Cement Volume in Vertebroplasty: A Multivariate Analysis with Short-Term Follow-Up.
Hyun Mook KWON ; Sang Pyung LEE ; Jin Wook BAEK ; Seong Hwan KIM
Korean Journal of Neurotrauma 2016;12(2):128-134
OBJECTIVE: The optimal threshold of the infusion volume of cement has been a continuous subject in percutaneous vertebroplasty (PVP). This study verifies a causal relationship between the cement volume and the clinical outcome, and suggests the parameters of the appropriate volume of cement in PVP. METHODS: This is a retrospective study. One hundred nine patients, who underwent PVP between 2012 and 2015, were included in the study. Various factors such as patients' fracture levels, fracture types, fracture body volumes, fracture rates, bone mineral densities, and infused cement volumes were analyzed. Cement infusion ratios were calculated, using total amount of infused cement and fractured body volume. Follow up was done after one-week, one-month and three-months, postoperatively. Changes in the middle body height and the cement leakage levels were monitored and clinical outcomes were evaluated using a visual analogue scale. RESULTS: Among the variables, the infusion ratio (r=-0.320, p=0.003, Pearson's correlation) was the only index that showed a significant cause and effect relationship with favorable clinical outcome, except the group with a T-score of higher than -2.5, and the group with a upper thoracic vertebral level. The patients with a cement infusion ratio of 27.8% or more of the fractured body volume had favorable results. CONCLUSION: This study showed that high cement infusion ratio revealed favorable outcome in the vertebroplasty of the osteoporotic compression fractures. Infusion ratio of more than 27.8% to osteoporotic compressed vertebrae is optimal for rapid recovery after PVP.
Body Height
;
Bone Cements
;
Bone Density
;
Follow-Up Studies*
;
Fractures, Compression
;
Humans
;
Multivariate Analysis*
;
Retrospective Studies
;
Spine
;
Vertebroplasty*
5.The clinical investigation for determining the etiology of bronchial anthracofibrosis.
Tae Mook NO ; In Seek KIM ; Seon Woong KIM ; Dong Hi PARK ; Jae Kwon JOENG ; Dong Wook JU ; Jae Hyun CHYUN ; Yeon Jae KIM ; Hyun Woong SHIN ; Byung Ki LEE
Korean Journal of Medicine 2003;65(6):665-674
BACKGROUND: The bronchial anthracofibrosis has been thought to be a unique clinical syndrome caused by a fibrotic response to active or old tuberculous infection, but recent studies suggest that long-term exposure to woodsmoke may be the cause of the development of bronchial anthracofibrosis and the tuberculosis is thought to be a disease frequently associated with bronchial anthrocofibrosis, not the main etiology. The purpose of this study was to elucidate the relationship between the bronchial anthracofibrosis and the long-term exposure to woodsmoke and tuberculosis through analyses of the clinical features of patients with bronchial anthracofibrosis. METHODS: 166 patients having bronchial anthracofibrosis confirmed by bronchoscopy were included in this study. They were 23 males and 143 females, having mean sge 72.4 years, ranging from 56 to 91. The epidemiologic features, distinctive clinical features, physiologic findings, radiologic findings and bronchoscopic findings were analyzed retrospectively. RESULTS: All the patients living in rural area (129 of 166) had experienced long-term exposure to woodsmoke. The history of tuberculosis was obtained in 52 patients without history of occupational exposure to dust. The predominant chest CT findings were atelectasis, bronchial stenosis and calcified or noncalcified lymph node enlargements. The most common abnormality of pulmonary function was obstructive pattern, observed in 47.8%. The bronchoscopic examination disclosed multifocal anthracotic plaques mostly at the bifurcation of lobar or segmental bronchi, particularly in upper lobe. The bronchial stenosis was frequently observed in right middle and upper lobe. The associated diseases were obstructive airway disease in 56, obstructive pneumonia in 40, active tuberculosis in 36, and lung cancer in 11 patients. CONCLUSION: The bronchial anthracofibrosis, in the patient who has long-term experience to woodsmoke inhalation without any history of environmental exposure to dust, is one of the manifestation of lung disease related to woodsmoke inhalation, and is frequently associated with various pulmonary diseases, including tuberculosis.
Bronchi
;
Bronchoscopy
;
Constriction, Pathologic
;
Dust
;
Environmental Exposure
;
Female
;
Humans
;
Inhalation
;
Lung Diseases
;
Lung Neoplasms
;
Lymph Nodes
;
Male
;
Occupational Exposure
;
Pneumonia
;
Pulmonary Atelectasis
;
Retrospective Studies
;
Tomography, X-Ray Computed
;
Tuberculosis
6.Diabetes Fact Sheet in Korea 2021
Jae Hyun BAE ; Kyung-Do HAN ; Seung-Hyun KO ; Ye Seul YANG ; Jong Han CHOI ; Kyung Mook CHOI ; Hyuk-Sang KWON ; Kyu Chang WON ;
Diabetes & Metabolism Journal 2022;46(3):417-426
Background:
This study aimed to investigate the prevalence and management of diabetes mellitus, risk-factor control, and comorbidities among Korean adults.
Methods:
We conducted a cross-sectional analysis of data from the Korea National Health and Nutrition Examination Survey to assess the prevalence, treatment, risk factors, comorbidities, and self-management behaviors of diabetes mellitus from 2019 to 2020. We also analyzed data from the Korean National Health Insurance Service to evaluate the use of antidiabetic medications in people with diabetes mellitus from 2002 through 2018.
Results:
Among Korean adults aged 30 years or older, the estimated prevalence of diabetes mellitus was 16.7% in 2020. From 2019 through 2020, 65.8% of adults with diabetes mellitus were aware of the disease and treated with antidiabetic medications. The percentage of adults with diabetes mellitus who achieved glycosylated hemoglobin (HbA1c) <6.5% was 24.5% despite the increased use of new antidiabetic medications. We found that adults with diabetes mellitus who achieved all three goals of HbA1c <6.5%, blood pressure (BP) <140/85 mm Hg, and low-density lipoprotein cholesterol <100 mg/dL were 9.7%. The percentage of self-management behaviors was lower in men than women. Excess energy intake was observed in 16.7% of adults with diabetes mellitus.
Conclusion
The prevalence of diabetes mellitus among Korean adults remained high. Only 9.7% of adults with diabetes mellitus achieved all glycemic, BP, and lipid controls from 2019 to 2020. Continuous evaluation of national diabetes statistics and a national effort to increase awareness of diabetes mellitus and improve comprehensive diabetes care are needed.
7.Phosphorylated Tau in the Taste Buds of Alzheimer’s Disease Mouse Models
Hyun Ji KIM ; Bo Hye KIM ; Dong Kyu KIM ; Hanbin KIM ; Sang-Hyun CHOI ; Dong-Hoon KIM ; Myunghwan CHOI ; Inhee MOOK-JUNG ; Yong Taek JEONG ; Obin KWON
Experimental Neurobiology 2024;33(4):202-214
Numerous systemic diseases manifest with oral symptoms and signs. The molecular diagnosis of Alzheimer’s disease (AD), the most prevalent neurodegenerative disease worldwide, currently relies on invasive or expensive methods, emphasizing the imperative for easily accessible biomarkers.In this study, we explored the expression patterns of key proteins implicated in AD pathophysiology within the taste buds of mice. We detected the expression of amyloid precursor protein (APP) and tau protein in the taste buds of normal C57BL/6 mice. Phosphorylated tau was predominantly found in type II and III taste cells, while APP was located in type I taste cells. Remarkably, we observed significantly stronger immunoreactivity to phosphorylated tau in the taste buds of aged AD mouse models compared to age-matched controls. These findings underscore the oral expression of biomarkers associated with AD, highlighting the diagnostic potential of the oral cavity for neurodegenerative diseases.
8.Change of Angiotensinogen mRNA in Rat Liver after Myocardial Infarction.
Young Keun ON ; Se Il OH ; Sang Hyun KIM ; Young Kwon KIM ; Hyo Soo KIM ; Cheol Ho KIM ; Dae Won SOHN ; Byung Hee OH ; Myoung Mook LEE ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1995;25(2):510-519
BACKGROUND: Loss of myocardium due to acute myocardial infarction may cause acute heart failure and future left ventricular dysfunction. During heart failure, homeostatic mechanism will be activated and the renin-angiotensin system may play a role in congestive heart failure. Its primary components are angiotensinogen, renin, angiotensin converting enzyme, and angiotensin. According to the recent improvement of molecular biologic technique, it is possible to know the angiotensinogen nucleotidde sequence, amino acid sequence, and tertiary structure and to detect very small amount of material from tissue. The aim of the present study was to examine the change of expression of the liver angiotensinogen mRNA, a component of the circulation renin-angiotensin system in rats after myocardial infarction. METHODS: Female Sprague-Dawley rats(body weight 200-250g) were anesthetized and subjected either to left coronary artery occlusion or to sham operation. And the rats were sacrificed at 1 hours, 4 hours, 18 hours, 24 hours, 3 days, 7 days, 1 week, 2 weeks and 3 weeks. Northern blot analysis was performed. RESULTS: The liver angiotensinogen amRNA levels were elevated at 4 hours, 18 hours, 24 hours after myocardial infarction and reduced to control values at 3 days(max 5-fold). The liver angiotensinogen mRNA levels were lesser elevated at 4 hours, 18 hours, 24 hours after sham operation(max 1.8-fold). CONCLUSION: The renin-angiotensin system is one of the major regulators of blood pressure and fiuid and electrolyte homeostasis. It appears that the circulating renin-angiotensin system is activated acutely after myocardial infarction and is then turned off at cardiovascular compensation.
Amino Acid Sequence
;
Angiotensinogen*
;
Angiotensins
;
Animals
;
Blood Pressure
;
Blotting, Northern
;
Compensation and Redress
;
Coronary Vessels
;
Female
;
Heart Failure
;
Homeostasis
;
Humans
;
Liver*
;
Myocardial Infarction*
;
Myocardium
;
Peptidyl-Dipeptidase A
;
Rats*
;
Rats, Sprague-Dawley
;
Renin
;
Renin-Angiotensin System
;
RNA, Messenger*
;
Ventricular Dysfunction, Left
9.Western Blot Analysis of Alterations of Skeletal Muscle Nicotinic Acetylcholine Receptor Subunits in the Major Burns: Burn vs. Nonburn Sites.
Kwon Ik OH ; Tae Woon KIM ; Hyun Mook CHANG ; In Suk KWAK ; Tae Hyung HAN ; Kwang Min KIM
Korean Journal of Anesthesiology 2005;48(6):592-599
BACKGROUND: Major burn injury causes aberrant responses to neuromuscular blocking agents, and an increase in fetal type nicotinic acetylcholine receptors (nAchR) has been speculated to contribute to the altered response. This study was conducted to test the hypothesis that the increases in nAchR are due to generalized systemic effects, not limited to area of burn in humans. Using the rectus abdominis muscle of the burned area and quadriceps muscle of nonburned area from the single major burn patient, the changes of nAchR subunits of alpha1, gamma and alpha7 were compared. METHODS: Twelve adults (M:F = 11:1) with total body surface area (TBSA) of 48.8 +/- 19.3% major burns, undergoing burn related elective surgery, were included at 30.8 +/- 16.4 days after the burn injury. Only those with burns in abdominal area and no burns in the lower extremity, were selected. Under general anesthesia, muscle biopsy was taken from the rectus abdominis muscle under the burned abdominal area as well as from the quadriceps muscle under the unburned thigh, at least 30 cm away from the closest burn wound margin. The nAchR changes in the muscles were assayed by western blot using subtype specific mouse antibody for alpha1, gamma and alpha7. RESULTS: The nAchR subunit quantitation (volume% compared to nonburn controls) of alpha1, gamma and alpha7 in the rectus and quadriceps by densitometry were 335.4 +/- 45.4 vs. 321.7 +/- 76.2, 298.3 +/- 234.3 vs. 290.0 +/- 202.3, 149.7 +/- 22.6 vs. 141.6 +/- 35.6, respectively, showing no significant statistical differences between burned and nonburned area (P > 0.05). However, large coefficients of variation were noted in both muscles of gamma group, which may suggest indirect evidence of proliferation of fetal type nAchR in the major burns. TBSA and days after the burn injury were poorly correlated with the amount of expression of subtypes of acetylcholine receptors tested. CONCLUSIONS: Our results confirm that systemic effects of thermal injury include an increase in nAchR at sites distant from the thermal injury, which may account for the skeletal muscle dysfunction and aberrant responses to neuromuscular relaxation. Further studies need to address the importance of burn size and its effects on quantitative and qualitative changes in receptor.
Adult
;
Anesthesia, General
;
Animals
;
Biopsy
;
Blotting, Western*
;
Body Surface Area
;
Burns*
;
Densitometry
;
Humans
;
Lower Extremity
;
Mice
;
Muscle, Skeletal*
;
Muscles
;
Neuromuscular Blocking Agents
;
Quadriceps Muscle
;
Receptors, Cholinergic
;
Receptors, Nicotinic*
;
Rectus Abdominis
;
Relaxation
;
Thigh
;
Wounds and Injuries
10.A Clinical Study of Tissue Valve Failure.
Duk Hyun KANG ; Ihn Ho CHAI ; Myoung Chan CHO ; Young Kwon KIM ; Duk Kyung KIM ; Dae Won SOHN ; Myoung Mook LEE ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1990;20(4):679-686
On reoperations for tissue valve failure from December 1981 to December 1989, we had diagnosed 71 cases as primary tissue failure. In those cases we found out risk factors of accelerated primary tissue failure and increased thrombogenecity. We reviewed also long-term follow-ups of 542 patients after tissue valve replacement from 1978 to 1982, and durability of tissue valve was evaluated with the freedom rate from primary tissue failure. The results were as follows. 1) Eight patients had undergone reoperation by Dec. 1989 ; 71 cases(80.7%) for primary tissue failure, 11 cases(12.5%) for prosthetic valve endocarditis, 4 cases(4.5%) for thromboembolism, and 2 cases(2.3%) for paravalvular leakage. primary tissue failure was the main cause(80.7%) of tissue valve failure. 2) Primary tissue failure occurred at a mean postoperative interval of 89.7 months(range : 19.9-143.2 months). 3)In children under the age of 18, mean implantation time was 62 months, and in adults mean implantation time was 96 months. In the child group primary tissue failure occurred earlier than in the adult group by 34 months(p<0.01) 4) Actuarial freedom from primary tissue failure was 97.6%+/-0.6% at 5 years and 84.4%+/-2.2% at 10 years. 5) The types and locations of prosthetic tissue valves resulted in no significant difference in durability. 6) Primary tissue failure was mainly caused by calcification of the cusps(76%) 7) In atrial fibrillation the incidence of atrial thrombi was 31.3% and left atrial thrombi was the most common finding(60%) In conclusion, 1) Durability of tissue valve for 10 years is acceptable, but the limited durability of tissue may be a major concern after 10 years. 2) In children under the age of 18, tissue valve should be avoided due to accelerated tissue failure. 3) Atrial fibrillation clearly increases the risk of thromboembolism and anticoagulation is considered to be required in patients with atrial fibrillation.
Adult
;
Atrial Fibrillation
;
Child
;
Endocarditis
;
Follow-Up Studies
;
Freedom
;
Humans
;
Incidence
;
Reoperation
;
Risk Factors
;
Thromboembolism