1.Clinical consideration between the type of pneumonia and cold agglutinin titer, and mycoplasma antibody titer caused by mycoplasma pneumonia in children.
Byung Yeon KIM ; Hyang Suk LEE ; Ill Kyung KIM ; Chang Hee CHOI ; Kyung Ho YOU
Journal of the Korean Pediatric Society 1993;36(7):959-967
The authors analysed 261 cases of mycoplasmal pneumonia in children who were admitted to the pediatric department of Seoul Adventist Hospital between July 1986 and June 1991. The result obtained were as follows; 1) Yearly distribution of the cases showed high in 1987 and 1991, but no significant difference was noted in seasonally or monthly distribution. 2) The peak incidence of age was between 2 and 6 years of age, and the sex ratio of boy to girl was 1.1:1. 3) pulmonary manifestations were asthma in 21 cases (8.0%), atelectasis in 5 cases (1.9%), emphysema in 3 cases (1.2%), pleural effusion in 16 cases (6.1%), otitis media in 4 cases (1.2%) and sinusitis in 9 cases (3.4%). 4) Extrapulmonary complication were hepatitis in 53 cases (20.3%), skin rash in 9 cases (2.4%), proteinuria in 6 cases (2.3%), and hematuria in 4 cases (1.5%). 5) On the chest X-ray examination, the most common type of pneumonia was interstitial pneumonia (94 cases, 39.8%), and unilateral involvement was common (85.6%), and the most common involvement was right lower lobe (83 cases, 41.4%). 6) The relationship between the type of pneumonia and cold agglutinini titer, and between the type of pneumonia and Mycoplasma antibody titer were not found (P>0.05). 7) In the 16 cases of pleural effusion, The type of pneumonia was lobar, lobular (9 cases), bronchopneumonia (7 cases), and interstitial type was not present. The site of pneumonia was left (6 cases), right (9 cases), and 1 case showed bilatrality. The extent of pleural effusion was mild (10 cases), moderate (3 cases), and severe (3 cases). The result of pleural fluid exam in severe cases was all exudate. 8) The mean duration of admission was most common from 6 to 10 days. the mean duration of admission by the type of pneumonia was lobar, lobar (10.71+/-3.40), interstitial (8.78+/-2.14), and bronchopneumonia (8.83+/-2.47). 9) Both mycoplasma antibody test and cold agglutinin test were carried out in 185 cases and sensitivity of mycoplasma antibody test was 55.1%.
Asthma
;
Bronchopneumonia
;
Child*
;
Emphysema
;
Exanthema
;
Exudates and Transudates
;
Female
;
Hematuria
;
Hepatitis
;
Humans
;
Incidence
;
Lung Diseases, Interstitial
;
Male
;
Mycoplasma*
;
Otitis Media
;
Pleural Effusion
;
Pneumonia*
;
Pneumonia, Mycoplasma*
;
Proteinuria
;
Pulmonary Atelectasis
;
Seasons
;
Seoul
;
Sex Ratio
;
Sinusitis
;
Thorax
2.Clinical significance of specific IgG and IgE antibodies to toluene diisocyanate ( TDi ) - human - serum albumin ( HSA ) conjugate in TDI - induceed occupational asthma.
Hae Sim PARK ; Hee Yeon KIM ; Jung Hee SUH ; Dong Ho NAHM ; Jee Woong SOHN ; You Young KIM
Journal of Asthma, Allergy and Clinical Immunology 1999;19(4):594-600
BACKGROUND AND OBJECTIVE: TDI is known to be the most prevalent cause of occupational asthma ( OA ) in Korea. However, the pathogenesis of TDI - induced occupational asthma still remains to be further clarified. So, we evaluated clinical significance of serum specific IgG and IgE antibodies to TDI - HSA conjugate in TDI - induced occupational asthma. Subjects and METHODS: Serum specific IgG and IgE antibodies to TDI - HSA conjugate were measured by enzyme linked immunosorbent assay. Serum was collected from 50 TDI- induced OA patients ( classified as group I ), and was compared with that from 13 asthmatic subjects with negative TDI - bronchoprovocation test ( BPT, group II ), allergic asthmatics ( group III ), and unexposed healthy controls ( group IV ). RESULTS: The prevalence of specific IgG was significantly higher in group I than in group II (p = 0.01) or group III (p <0.01). No significant difference was noted between group II and group III (p> 0.05). However, the prevalence of specific IgE was not different between group I and group II (p> 0.05 ) or group II and group III( p> 0.05 ). There was no significant difference in prevalence of specific IgG according to the asthmatic response during TDI bronchoprovocation test ( p> 0.05 ). No statistical significance was noted between specific IgG and IgE antibodies in group I subjects ( p> 0.05 ). CONCLUSION: These findings demonstrate that presence of specific IgG to TDI - HSA conjugate is closely related to TDI - BPT results and it may contribute to the development of TDI - induced asthma.
Antibodies*
;
Asthma
;
Asthma, Occupational*
;
Enzyme-Linked Immunosorbent Assay
;
Humans*
;
Immunoglobulin E*
;
Immunoglobulin G*
;
Korea
;
Prevalence
;
Serum Albumin*
;
Toluene 2,4-Diisocyanate*
;
Toluene*
3.What are you doing now?: Use of Duty Time by Residents and Nureses in Emergency Center.
In Sool YOO ; Seung RYU ; Yeon Ho YOU
Journal of the Korean Society of Emergency Medicine 2008;19(6):760-767
PURPOSE: We wanted to evaluate the actual work patterns of residents and nurses and the effects of controlling visits by relatives on the mortality of patients and their length of stay and on the workload of the residents and nurses. METHODS: We investigated the actual workload of the residents who worked 12 hours shifts and nurses who worked 8 hours shifts in an emergency center for two weeks. We compared the mortality of the patients, the length of their stay and the work patterns between before we controlled visits by relatives and after we controlled visits by relatives. RESULTS: On the average, residents spent 407.01 minutes (56.5%) taking care of patients for a shift (720 min.) and nurses spent 305.29 minutes (63.6%) taking care of patients for a shift (480 min.). Although we controlled visits by relatives, we're unable to reduce the patient mortality and the length of their stay. Yet we were able to reduce the unnecessary repeated explanation-time, the resting time and the nurses and residents were able to better concentrate to explain to patients or their relatives. We were also able to increase the treatment time and description time, and especially for residents. Nurses spent 71.86 minutes (15.0%) to take a rest a shift, and residents spent 166.40 minutes (23.1%) resting a shift (p=0.01). CONCLUSION: To reduce unnecessary repeated explanation-time and the resting time and to allow nurses and residents to better concentrate when explaining to patients or their relatives, and also to increase the treatment and description time, controlling relatives in an emergency center is necessary.
Emergencies
;
Humans
;
Length of Stay
4.Therapeutic effects of adipose-derived stem cells pretreated with pioglitazone in an emphysema mouse model.
Yoonki HONG ; You Sun KIM ; Seok Ho HONG ; Yeon Mok OH
Experimental & Molecular Medicine 2016;48(10):e266-
There is no therapy currently available that influences the natural history of disease progression in patients with chronic obstructive pulmonary disease (COPD). Although stem cell therapy is considered a potential therapeutic option in COPD, there are no clinical trials proving definitive therapeutic effects in patients with COPD. Recently, it was reported that pioglitazone might potentiate the therapeutic effects of stem cells in patients with heart or liver disease. To test the capacity of pioglitazone pretreatment of stem cells for emphysema repair, we evaluated the therapeutic effects of pioglitazone-pretreated human adipose-derived mesenchymal stem cells (ASCs) on elastase-induced or cigarette smoke-induced emphysema in mice. We also investigated the mechanisms of action of pioglitazone-pretreated ASCs. Pioglitazone-pretreated ASCs had a more potent therapeutic effect than non-pretreated ASCs in the repair of both elastase-induced and smoke-induced emphysema models (mean linear intercept, 78.1±2.5 μm vs 83.2±2.6 μm in elastase models and 75.6±1.4 μm vs 80.5±3.2 μm in smoke models, P<0.05). Furthermore, we showed that pioglitazone-pretreated ASCs increased vascular endothelial growth factor (VEGF) production both in vitro and in mouse lungs in the smoke-induced emphysema model. Pioglitazone-pretreated ASCs may have more potent therapeutic effects than non-pretreated ASCs in emphysema mouse models.
Animals
;
Disease Progression
;
Emphysema*
;
Heart
;
Humans
;
In Vitro Techniques
;
Liver Diseases
;
Lung
;
Mesenchymal Stromal Cells
;
Mice*
;
Natural History
;
Pancreatic Elastase
;
Pulmonary Disease, Chronic Obstructive
;
Smoke
;
Stem Cells*
;
Therapeutic Uses*
;
Tobacco Products
;
Vascular Endothelial Growth Factor A
5.A Case of Hydrothorax Aggravated by Peritoneal Dialysate Leakage in Compensated Liver Cirrhosis Patient with Ascites.
Gain YOU ; Ho Sik SHIN ; Yeon Soon JUNG ; Hark RIM
Kosin Medical Journal 2014;29(1):53-57
The cirrhotic patients with ascites present unique challenge to the renal caregiver. Hydrothorax in a cirrhotic patient treated with PD poses a diagnostic dilemma. Proposed mechanisms for the development of a pleuro-peritoneal communication include congenital diaphragmatic defects, acquired weakening of diaphragmatic fibers caused by high intra-abdominal pressures during peritoneal dialysis, and impairments in lymphatic drainage. Pleural fluid analysis and diagnostic imaging assist in differentiation from other causes of pleural effusion. We report a case of hydrothorax in a compensated cirrhotic patient after recent introduction to peritoneal dialysis.
Ascites*
;
Caregivers
;
Diagnostic Imaging
;
Drainage
;
Humans
;
Hydrothorax*
;
Liver Cirrhosis*
;
Peritoneal Dialysis
;
Pleural Effusion
6.Direction of the J-Tip of the Guidewire to Decrease the Malposition Rate of an Internal Jugular Vein Catheter.
Byeong Jun AHN ; Sung Uk CHO ; Won Joon JEONG ; Yeon Ho YOU ; Seung RYU ; Jin Woong LEE ; In Sool YOO ; Yong Chul CHO
Korean Journal of Critical Care Medicine 2015;30(4):280-285
BACKGROUND: We hypothesized that the direction of the J-tip of the guidewire during insertion into the internal jugular vein (IJV) might determine its ultimate location. METHODS: In this study, 300 patients between the ages of 18 and 99 years who required central venous catheterization via IJV in the emergency department enrolled for randomization. IVJ catheterization was successful in 285 of 300 patients. An independent operator randomly prefixed the direction of the J-tip of the guidewire to one of three directions. Based on the direction of the J-tip, patients were allocated into three groups: the J-tip medial-directed group (Group A), the lateral-directed group (Group B), or the downward-directed group (Group C). Postoperative chest radiography was performed on all patients in order to visualize the location of the catheter tip. A catheter is considered malpositioned if it is not located in the superior vena cava or right atrium. RESULTS: Of the total malpositioned catheter tips (8 of 285; 2.8%), the majority (5 of 8; 62.5%) entered the contralateral subclavian vein, 2 (25.0%) were complicated by looping, and 1 (12.5%) entered the ipsilateral subclavian vein. According to the direction of the J-tip of the guidewire, the incidence of malpositioning of the catheter tip was 4 of 92 in Group A (4.3%), 4 of 96 in Group B (4.2%), and there were no malpositions in Group C. There were no significant differences among the three groups (p = 0.114). CONCLUSIONS: The direction of the J-tip of the guidewire had no statistically significant effect on incidence of malpositioned tips.
Catheterization
;
Catheterization, Central Venous
;
Catheters*
;
Central Venous Catheters
;
Emergency Service, Hospital
;
Heart Atria
;
Humans
;
Incidence
;
Jugular Veins*
;
Radiography
;
Random Allocation
;
Subclavian Vein
;
Thorax
;
Vena Cava, Superior
7.Severe Traumatic Intraocular Injuries Related to Blowout Fractures.
Jae Hoon SHIN ; Mi Jin LEE ; Seong Soo PARK ; Won Joon JEONG ; Yeon Ho YOU
Journal of the Korean Society of Traumatology 2009;22(1):97-102
PURPOSE: Blunt trauma can cause a wide range of ocular injuries. This study was performed to describe the prevalence of severe intraocular injuries (SIOI) and their correlation with the severity of blunt orbital trauma. METHODS: We retrospectively analyzed 117 eyes of 107 patients with orbital wall fractures who visited the emergency room at Konyang University Hospital from July 2006 to June 2008. Clinical features such as age, sex, causes of injury, revised trauma score (RTS), type of orbital wall fractures were recorded. The patients were divided into two groups: blowout fracture with severe intraocular injuries (SIOI) and blowout fracture without SIOI. We compared the clinical and the injury-related characteristics between two groups and analyzed the SIOS-related factors. RESULTS: Among the 107 patients (117 eyes) with blowout fractures, 29 (27.1%) patients with 32 eyes (25.6%) had complicated severe intraocular injuries. Retrobulbar hemorrhage (14.5%), hyphema (13.7%), traumatic optic nerve injury (4.3%), and sustained loss of visual acuity (4.3%) were the most common SIOI disorders. A logistic regression analysis revealed that loss of visual acuity (odds ratio = 4.75) and eyeball motility disorder (odds ratio=7.61) were significantly associated with SIOS. CONCLUSION: We suggest that blowout fracture patients with loss of visual acuity or eyeball motility disorder are mostly likely to have severe intraocular injuries, so they need an ophthalmologic evaluation immediately.
Emergencies
;
Eye
;
Eye Injuries
;
Humans
;
Hyphema
;
Logistic Models
;
Optic Nerve Injuries
;
Orbit
;
Orbital Fractures
;
Prevalence
;
Retrobulbar Hemorrhage
;
Retrospective Studies
;
Visual Acuity
8.Pyloric Exclusion in the Pancreaticoduodenal Injury.
Young Kyoung YOU ; Seok Woo HYUN ; Dong Ho LEE ; Ji Yeon KIM ; Chang Joon AHN
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2002;6(2):185-188
BACKGROUND/AIMS: Pyloric exclusion has been recommended in patients with severe injury to the pancreas and duodenum. METHODS: A retrospective case review of 8 patients treated with pyloric exclusion following pancreaticoduodenal injury from March 1994 to May 2002 in Department of Surgery, the Catholic University of Korea, Daejeon St. Mary's Hospital. RESULTS: The age range of the patients was from 8 to 31 years. Most of the etiolgy (n=7) was the blunt abdominal trauma and one case due to the iatrogenic injury from the therapeutic endoscopic retrograde cholangiopancretography. The time interval between the injury and the operation varied from 3 to 48 hours. The most common postoperative complication was wound infection (n=8). We found the other complications such as intraabdominal abscess (n=3), pneumonia (n=3), but the complications were treated successfully with conservative measures. There was no mortality cases in these patients. The duration of admission was delayed in the cases of concomitant injury (64 vs 46 days). All patients above 16 years old (n=7) were supported with parenteral nutritional fluid via central intravenous route (mean 32 days). We could not find the spontaneous opening of the pyloric closure at least 4 patients in postoperative 3 months but there was no major complication according to the sustained gastrojejunostomy. CONCLUSION: Pyloric exclusion appears to offer a satisfactory option for the treatment of the severe pancreaticoduodenal injury with minor complication. Do you have any comments about the spontaneous opening of the pyloric closure?
Abscess
;
Adolescent
;
Duodenum
;
Gastric Bypass
;
Humans
;
Korea
;
Mortality
;
Pancreas
;
Pneumonia
;
Postoperative Complications
;
Retrospective Studies
;
Wound Infection
9.Childhood Ischemic Stroke Associated with Protein S Deficiency: A case report.
Yeon Ho YOU ; Seong Soo PARK ; Jung Gyu PARK ; Jung Soo PARK ; Sung Pil CHUNG
Journal of the Korean Society of Emergency Medicine 2002;13(3):351-353
The occurrence of acute ischemic stroke in childhood is rare. The etiology of childhood ischemic stroke is different from that of an adult, and coagulation abnormalities are suspected to be related. Protein S is a vitamin-K-dependent plasma protein that inhibits the coagulation system by serving as a cofactor for activated protein C, and the clinical manifestations of its deficiency are virtually identical to those of protein C deficiency. We reported the case of a child who presented with right side weakness and who was diagnosed as having a cerebral infarction associated with protein S deficiency as the cause of stroke.
Adult
;
Cerebral Infarction
;
Child
;
Humans
;
Plasma
;
Protein C
;
Protein C Deficiency
;
Protein S Deficiency*
;
Protein S*
;
Stroke*
10.Clinical applications and contemporary trends of hyperbaric oxygen therapy in Korea.
Yeon Ho YOU ; Heeduck KIM ; Hyun KIM ; Sangcheon CHOI ; Giwoon KIM
Journal of the Korean Medical Association 2014;57(7):601-606
Hyperbaric oxygen therapy (HBOT) is approved in the United States for 14 accepted indications, which are approved by the HBOT committee of the Undersea and Hyperbaric Medical Society and by the Food and Drug Administration. These indications are also used worldwide. HBOT is a mode of medical treatment in which the patient is situated in an enclosed pressure chamber and breathes 100% oxygen at a pressure greater than 1 atmosphere absolute (ATA), with the usual therapeutic pressure set at greater than 1.4 ATA. In South Korea, an expanded knowledge base and formalized education in HBOT do not exist, and numerous HBOT devices are old and nearing the cessation of operation, although HBOT has undergone refinement, with an increased understanding of mechanisms of action and clinical applications. Furthermore, there is no specific board certification of HBO competence for emergency, critical care, and surgical physicians and technicians in South Korea. We summarize the existing literature on the uses of HBO with the aim of enhancing the understanding of this therapeutic technique.
Atmosphere
;
Certification
;
Critical Care
;
Education
;
Emergencies
;
Humans
;
Hyperbaric Oxygenation*
;
Knowledge Bases
;
Korea
;
Mental Competency
;
Oxygen
;
Societies, Medical
;
United States
;
United States Food and Drug Administration