1.An Evaluation of the Accuracy of Mini-Wright Peak Flowmeters in Patients with Asthma and Chronic Obstructive Pulmonary Disease.
Won Il CHOI ; Seung Beom HAN ; Young June JEON
Tuberculosis and Respiratory Diseases 2001;50(3):310-319
BACKGROUND: The peak flowmeter is very useful in monitoring of out-patients as well as those in emergency departments because of its convenience and simplicity with low cost. There have been many studies aimed at determining the accuracy and reproducibility of the peak flow meter in normal population. However, there is a paucity of reports regarding its accuracy in patients with chronic obstructive pulmonary disease(COPD) or asthma. The accuracy of the peak expiratory flow(PEF) measured with a mini-Wright peak flowmeter was assessed by a comparison with the results of a mass flow sensor. METHODS: The PEF measurements were performed in 108 patients aged 19-82 years presenting with either a chronic obstructive lung disease or asthma before and after inhaling salbutamol. The PEF measurements from the mini-Wright flowmeter were compared with those obtained by the calibrated mass flow sensor. RESULTS: The average of the readings taken by the mini-Wright meter were 37-39 l/min higher than those taken by the mass flow sensor. The average percentage error of the mini-Wright meter were higher, ranging less than 300 l/min. The mean of the differences between the values obtained using both instruments (the bias)±limits of agreement(±2 SD) were 37.1±90 l/min for the PEF(p<0.001). CONCLUSIONS: The mini-Wright peak flowmeter overestimated the flows in patients with COPD or asthma. It was also found that the accuracy of the mini-Wright peak flowmeter decreased in its mid to low range. The limits of agreement are wide and the difference between the two instruments is signigicant. Therefore, the measurements made between the two types of machines in patients with asthma or COPD cannot be used in terchangeably.
Albuterol
;
Asthma*
;
Emergency Service, Hospital
;
Flowmeters*
;
Humans
;
Inhalation
;
Outpatients
;
Pulmonary Disease, Chronic Obstructive*
;
Reading
2.Functional Recovery after Operative Treatment of Hip Fractures in the Elderly.
Won Young SHON ; Jeong Ho PARK ; Ki Hoon KIL ; Seung Ju JEON ; Seung Woo SUH
The Journal of the Korean Orthopaedic Association 1998;33(4):968-973
The goal of fracture treatment is to restore the patient to pre-injury function level. But the outcome assessment after orthopedic interventions has usually focused on physician-defined parameters of technical success, such as fracture union, alignment and range of motion rather than patient function and quality of life. However, the correlation among improvements in these parameters and functional status, psychosocial well being is inconsistent and weak in the elderly. Therefore authors assessed the functional status after surgical intervention of hip fractures in the elderly with functional recovery score(FRS). Independence in basic activities of daily living, in instrumental activities of daily living, in mobility, freedom from pain and intact memory were assessed in 133 hip fractures in the elderly. The hip fractures in the elderly resulted in 24.8% loss of function after the first year. The older the age, the more the loss of function after surgery of hip fractures. The more functional loss was observed in female patients and in patients with poor postoperative radiological results, but statistically insignificant (P>0.05). The more functional loss was observed in patients with underlying medical disease preoperatively and it was statistically significant (P<0.05). We recommend the evaluation of functional status in the elderly after hip fractures.
Activities of Daily Living
;
Aged*
;
Female
;
Freedom
;
Hip Fractures*
;
Hip*
;
Humans
;
Memory
;
Orthopedics
;
Quality of Life
;
Range of Motion, Articular
3.The Study on 182 Cases of Exchange Transfusion.
Gie Hwa YOON ; Ock Seung JEONG ; So Won AHN ; Yung Seok JEON
Journal of the Korean Pediatric Society 1982;25(12):1243-1251
No abstract available.
4.Fine Needle Aspiration Biopsy of the Lung in Children with Diffuse Pulmonary Lesions Suggesting Pneurnocystis carinii Pneumonia.
Yo Won CHOI ; Yong Soo KIM ; Seok Chol JEON ; Chang Kok HAHM ; Chul Seung CHOI
Journal of the Korean Radiological Society 1994;30(6):1147-1150
PURPOSE: The purpose of this study was to determine the following:the safety of fine needle aspiration biopsy in immunocompromized children with radiographic features of Pneumocystis car/nil pneumonia, its diagnostic rate in those groups and the appropriate radiographic stage for fine needle aspiration biopsy to prove the etiologic agent. METHODS AND MATERIALS: We retrospectively reviewed the patient records of 16 children with immune compromizing diseases who had undergone fine needle aspiration biopsy of the lung. They showed the infectious sign of the lung along with the radiographic pattern of diffuse pulmonary disease, suggesting Pneumocystis carlnil pneumonia. All patients had underlying lymphoreticular malignancies including 14 acute lymphocytic leukemia and 2 non Hodgkin's lymphoma. According to the radiographic pattern of biopsy site, parenchymal disease was categorized as fine reticulonodular density(n=4), ground-glass opacity(n=9) and compact consolidation(n=3). We assessed the diagnostic rate of Pneumocystis carinii pneumonia and complications in each of the three groups. RESULTS: A diagnosis of Pneumocystis carinii pneumonia was established by fine needle aspiration biopsy in 9 patients(56%) including 2 of 4 patients with fine reticulonodular density, 4 of 9 patients with ground-glass opacity, and all 3 patients with compact consolidation. Four patients(25%) developed pneumothorax, and three of them required tube insertion. There was no patient who developed hemoptysis. CONCLUSION: Fine needle aspiration biopsy is a safe and easy method that can yield Pneumocystis carinii organism at a relatively high rate in immunocompromized children with diffuse pulmonary lesions suopicions of Pneumocystis carinii pneumonia. We recommend performing fine needle aspiration biopsy regardlesss of radiographic patterns when Pneumocystis carinii pneumonia is suggested.
Biopsy*
;
Biopsy, Fine-Needle*
;
Child*
;
Diagnosis
;
Hemoptysis
;
Humans
;
Lung Diseases
;
Lung*
;
Lymphoma, Non-Hodgkin
;
Pneumocystis
;
Pneumocystis carinii
;
Pneumonia*
;
Pneumonia, Pneumocystis
;
Pneumothorax
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Retrospective Studies
5.A Study on the Morphological Analysis of Sperm.
Jae Seung PAICK ; Seong Soo JEON ; Soo Woong KIM ; Won Jin YI ; Kwang Suk PARK
Korean Journal of Fertility and Sterility 1997;24(2):153-165
In male reproducible health, fertility and IVF (in-vitro fertilization), semen analysis has been most important. Semen analysis can be divided into concentration, motional and morphological analysis of sperm. The existing method which was developed earlier to analyze semen concentrated on the sperm motility analysis. To provide more useful and precise solutions for clinical problems such as infertility, semen analysis must include sperm morphological analysis. But the traditional tools for semen analysis are subjective, imprecise, inaccurate, difficult to standardize, and difficult to reproduce. Therefore, with the help of development of microcomputers and image processing techniques, we developed a new sperm morphology analyzer to overcome these problems. In this study the agreement on percent normal morphology was studied between different observers and a computerized sperm morphology analyzer on a slide-by-slide basis using strict criteria. Slides from 30 different patients from the SNUH andrology laboratory were selected randomly. Microscopic fields and sperm cells were chosen randomly and percent normal morphology was recorded. The ability of sperm morphology analyzer to repeat the same reading for normal and abnormal cells was studied. The results showed that there was no significant bias between two experienced observers. The limits of agreement were 4.1%~-3.8%. The Pearson correlation coefficient between readers was 0.79. Between the manual and sperm morphology analyzer, the same findings were reported. In this experiments the slides were stained by two different methods, PAP and Diff-Quik staining methods. The limits of agreement were 7.2%~-5.7% and 6.0%~-6.3%, respectively. The Pearson correlation coefficients ware 0.76 and 0.91, respectively. The limits of agreement was tighter below 20% normal forms. In the experiments of repeatability, 52 cells stained by PAP and Diff-Quik staining methods were analyzed three times in succession. Estimating pairwise agreement, the kappa statistic for the pairs were 0.76, 0.81, 0.86, and 0.75, 0.88, 0.88 respectively. In this study it was shown that there was good agreement between manual and computerized assessment of normal and abnormal cells. The repeatability and agreement per slide of computerized sperm morphology analyzer was excellent. The computer's ability to classify normal morphology per slide is promising. Based on results obtained, this system can be of clinical value both in andrology laboratories and IVF units.
Andrology
;
Bias (Epidemiology)
;
Fertility
;
Humans
;
Infertility
;
Male
;
Microcomputers
;
Semen
;
Semen Analysis
;
Sperm Motility
;
Spermatozoa*
6.Treatment of Tracheobronchial Stenosis with a Self-Expandable Metallic Stents.
Yo Won CHOI ; Yong Soo KIM ; Seok Chol JEON ; Chang Kok HAHM ; Chul Seung CHOI
Journal of the Korean Radiological Society 1994;31(1):35-41
PURPOSE: We analysed the role of modified Gianturco self-expandable stents in the treatment of tracheobronchial stenosis in 13 patients. MATERIALS AND METHODS: We inserted modified Gianturco self-expandable stents under the fluoroscopic and bronchoscopic guidance. There were stenosis in the trachea(n--2), the right main bronchus(n=2), and the left main bronchus(n=9). The causes of the stenosis were endobronchial tuberculosis(n=10), intubation granuloma (n=l), restenosis after surgical reconstruction(n=2). RESULTS: Dyspnea or wheezing was improved within 1 or 2 days following the procedure. There were 32% and 22% respective increase in average FEV1 and FVC. Lung perfusion scan showed 9.6% increase of perfusion in the involved lung. No complications related to the procedure were encountered. During follow-up period of up to 31 months, 2 patients showed tracheal or bronchial restenosis, at 3 and 6 months, retrospectively. There was a distal migration of the stents in one case. CONCLUSION: During the follow up period after stent insertion, improvement of the obstructive changes and dyspnea persisted in 10 out of 13 patients. The modified Gianturco self-expandable metallic stents may be a good choice for the treatment of tracheobronchial stenosis, either as a primary treatment, or when the reconstruction failed.
Constriction, Pathologic*
;
Dyspnea
;
Follow-Up Studies
;
Granuloma
;
Humans
;
Intubation
;
Lung
;
Perfusion
;
Respiratory Sounds
;
Retrospective Studies
;
Stents*
7.A Case of Papular Mucinosis.
Young Ho WON ; Seung Chul LEE ; Seong Jin KIM ; Seon Do JEON
Korean Journal of Dermatology 1999;37(7):917-921
Papular mucinosis, or lichen myxedematosus, is a rare cutaneous disease characterized by papular-lichenoid eruptions, mucin deposition, paraproteinemia, no abnormalities of thyroid function and IgG or IgM deposition in the reticular dermis or just below the epidermis in about 35% cases on direct immunofluorescence study. We report a case of papular mucinosis in a 48-year-old male, who noticed the skin colored or yellowish waxy papules on his upper arm 1 year ago. Since then, similar lesions developed on his upper extremities, upper trunk, and neck during last year. Histopathological findings of the lichenoid papules showed that the collagen fibers in the upper dermis are loosly arranged and separated by amorphous materials. These amorphous materials were positve with colloidal iron stain. Serum protein electrophoresis showed no abnormal bands and an abnormal paraprotein was not detected. Direct immunofluorescenc study of a skin biopsy specimen showed a granular IgM deposit in the papillary dermis. This is the sixth case of papular mucinosis reported in Korea, but is the first case showing IgM deposit in the skin by immunofluorescence study.
Arm
;
Biopsy
;
Collagen
;
Colloids
;
Dermis
;
Electrophoresis
;
Epidermis
;
Fluorescent Antibody Technique
;
Fluorescent Antibody Technique, Direct
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Iron
;
Korea
;
Male
;
Middle Aged
;
Mucins
;
Neck
;
Paraproteinemias
;
Scleromyxedema*
;
Skin
;
Thyroid Gland
;
Upper Extremity
8.A Case of Myotonic Dystrophy with Prolonged Atrial Flutter.
Won Kwon KANG ; Dae Hoi KU ; Seung Hun SHIN ; Yeon Chae JEONG ; Eun Seok JEON ; Jong Hoon PARK
Korean Circulation Journal 1989;19(4):770-775
Myotonic dystrophy is a multisystemic disorder inherited as an autosomal dominant trait. The characteristic clinical features include the presence of myotonia, atrophy of the muscles of the face and the sternocleidomastoids and numerous nonmusclar manifestations such as cataracts, frontal baldness, gonadal dysfunctions and cardiac abnormalities. We experienced one case of myotonic dystrophy with prolonged atrial flutter in 30-year-old male who was admitted because of palpitation. We present this case with reviewing literatures.
Adult
;
Alopecia
;
Atrial Flutter*
;
Atrophy
;
Cataract
;
Gonads
;
Humans
;
Male
;
Muscles
;
Myotonia
;
Myotonic Dystrophy*
9.Therapeutic Effectiveness of Oral Itraconazole for Cutaneous Sporotrichosis.
Young Ho WON ; Seon Do JEON ; Seong Jin KIM ; Seung Chul LEE
Korean Journal of Medical Mycology 1998;3(2):172-178
BACKGROUND: The effectiveness of some therapeutic modalities for cutaneous sporotrichosis may be changed depending on the individual and geographic characteristics, and the clinical type. Itraconazole has been known to be effective for it, however, there have been no standard and ideal guideline on the oral dosage and duration yet. OBJECTIVE & METHODS: In this study, we evaluated the effectiveness of oral itraconazole in patients with cutaneous sporotrichosis in relation to dosage and clinical status. The observation of 17 patients with sporotrichosis were made retrospectively Oral itraconazole was administered at the dose of 200 mg daily in 15 adults over 18 years old and 100 mg in the other 2 children. RESULTS: The duration for healing was within 30 days in 4 cases, within 60 days in 4 cases, within 90 days in 2 cases, within 120 days in 3 cases, and within 150 days of therapy in 2 cases. The average duration in all cases was 12.1+/-8.6 weeks. Comparison our results to the previous reported one revealed that more shorter treatment time was needed in cases treated with 200 mg daily than that with 100 mg. There was no treatment failure by drug intolerance or resistance. The duration for healing was significantly shorter in the patient groups with prevalence duration more than 5 months, however there was not any significant difference in sex of patients, and the clinical types. The cases with the lesion on the face and cases with fixed type tended to be healed more rapidly than the others. CONCLUSION: Oral itraconazole may be a safe and e(fictive antifungal agent for the treatment of cutaneous sporotrichosis in a daily dose of 200 mg for 3 months on the average. However, duration for healing could be influenced by the clinical status.
Adolescent
;
Adult
;
Child
;
Humans
;
Itraconazole*
;
Prevalence
;
Retrospective Studies
;
Sporotrichosis*
;
Treatment Failure
10.An Odontogenic Sinus Tract Draining to the Skin.
Seon Do JEON ; Jee Bum LEE ; Seung Chul LEE ; Young Ho WON
Korean Journal of Dermatology 2000;38(8):1138-1139
We report a case of a 77-year-old woman with a cutaneous sinus tract located on the right cheek secondary to a periapical abscess of the right maxillary first molar. The lesion was a nodule with surrounding dimple and drained purulent fluid. Previous topical and systemic treatment was temporarily effective. Radiologic examination of the maxillary and mandibular regions demonstrated diffuse radiolucency involving the apices of the right maxillary first molar, consistent with periapical abscesses. Removal of the involved teeth and curettage of the granulation tissue accompanied by antibiotic therapy resulted in the complete healing of the cheek lesion. In the presence of a single chronic suppurative or nodulocystic lesion of the face, it is always useful to perform a radiologic evaluation of the maxillary and mandibular regions to promptly exclude a possible odontogenic background.
Aged
;
Cheek
;
Curettage
;
Female
;
Granulation Tissue
;
Humans
;
Molar
;
Periapical Abscess
;
Skin*
;
Tooth