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.Two cases of supernumerary nipple.
Kyun Tae KIM ; Eung Ho CHOI ; Sung Ku AHN ; Beom Joo LEE ; Won Soo LEE
Korean Journal of Dermatology 1993;31(5):784-787
Supernunmerary nipple is a developmental anomaly occuring alon, the course of the embryological milk lines. This entity has receieved little attention in the dermatologic literature and has been confused with a pigmented nevus in some cases. We have experienced two ease of the more unusual form of supern umerary nipple. According to the Kajavas classification, our caes are classified as polithelia pilosa and complete breast with nipple.
Breast
;
Classification
;
Milk
;
Nevus, Pigmented
;
Nipples*
3.Von Recklinghausen' s Disease with Plexiform Neurofibroma , Giant Pigmentation , and Skeletal Abnormalities.
Sang Min HWANG ; Sung Ku AHN ; Beom Joo LEE ; Won Soo LEE ; Eung Ho CHOI
Korean Journal of Dermatology 1995;33(6):1179-1183
Plexiform neurofibroma is considered a pathognomic of Von Recklinghousen's disease, which involves the deep and large nerve trunk. These are large irregular nerve fascicles which result from an increase in endoneural matrix within individual nerve facicles, without an increased number of nerve fibers. We experenced a case of Von Recklinghausen's disease in a 24 year-old male who had variable cutaneous skeletal, and CNS lesions. He presented multiple neurofibromas, cafe-au-lait spots, and axillary freckles as common cutaneous lesions of NF-I and giant pigmentation, sacral hypertrichosis, and plexiform neurofibroma as unusual cutaneous lesions. Also he had a scoliosis, bowing deformity of the humerous and wedging deformity of the body of the 5th cervical spine as a skeletal manifestation and cortical calcification in the occipital area as a CNS manifestation.
Cafe-au-Lait Spots
;
Congenital Abnormalities
;
Humans
;
Hypertrichosis
;
Male
;
Melanosis
;
Nerve Fibers
;
Neurofibroma, Plexiform*
;
Neurofibromatoses
;
Neurofibromatosis 1
;
Pigmentation*
;
Scoliosis
;
Spine
;
Young Adult
4.A Case of Beals-Hecht syndrome.
Won Jin BAE ; Eun Kyoung CHOI ; Jong Beom SIN
Journal of the Korean Society of Neonatology 2005;12(2):222-226
Beals-Hecht syndrome, also known as congenital contractural arachnodactyly, is a rare autosomal dominant, connective tissue disorder characterized by congenital joint contractures, arachnodactyly, dolichostenomelia, crumpled ear, and kyphoscoliosis. We report a case of Beals-Hecht syndrome in a 4 days old female newborn baby, associated with congenital knee and elbow joint contractures, arachnodactyly, dolichostenomelia, crumpled ear, and 4 umbilical arteries, with brief review of the related literatures.
Arachnodactyly
;
Connective Tissue
;
Contracture
;
Ear
;
Elbow Joint
;
Female
;
Humans
;
Infant, Newborn
;
Joints
;
Knee
;
Umbilical Arteries
5.Effects of the age of pronucleate ova on survival and development in cryopreservation of mouse embryos.
Hyun Won YANG ; Hee Kyoo KANG ; Kyoo Wan CHOI ; Young Beom CHA ; Seung Jae LEE ; Jong Min PARK
Korean Journal of Fertility and Sterility 1993;20(1):31-36
No abstract available.
Animals
;
Cryopreservation*
;
Embryonic Structures*
;
Mice*
;
Ovum*
6.A Case of Nasal Glioma.
Kyun Tae KIM ; Beom Joo LEE ; Sung Ku AHN ; Seung Hun LEE ; Won Soo LEE ; Soo Im CHOI
Annals of Dermatology 1994;6(2):215-218
No abstract available.
Glioma*
7.Antineutrophil Cytoplasmic Antibody-Associated Vasculitis in Korea: A Narrative Review.
Chan Bum CHOI ; Yong Beom PARK ; Sang Won LEE
Yonsei Medical Journal 2019;60(1):10-21
Antineutrophil cytoplasmic antibody-associated vasculitis (AAV) is a group of systemic necrotising vasculitides, which often involve small vessels, and which lead to few or no immune deposits in affected organs. According to clinical manifestations and pathological features, AAV is classified into three variants: microscopic polyangiitis, granulomatosis with polyangiitis (GPA), and eosinophilic GPA. The American College of Rheumatology 1990 criteria contributed to the classification of AAV, although currently the algorithm suggested by the European Medicines Agency in 2007 and the Chapel Hill Consensus Conference Nomenclature of Vasculitides proposed in 2012 have encouraged physicians to classify AAV patients properly. So far, there have been noticeable advancements in studies on the pathophysiology of AAV and the classification criteria for AAV in Western countries. However, studies analysing clinical features of Korean patients with AAV have only been conducted and reported since 2000. One year-, 5 year-, and 10 year-cumulative patient survival rates are reported as 96.1, 94.8, and 92.8%. Furthermore, initial vasculitis activity, prognostic factor score, age and specific organ-involvement have been found to be associated with either all-cause mortality or poor disease course. The rate of serious infection is 28.6%, and 1 year-, 5 year- and 10 year-cumulative hospitalised infection free survival rates range from 85.1% to 72.7%. The overall standardised incidence ratio of cancer in AAV patients was deemed 1.43 compared to the general Korean population.
Antibodies, Antineutrophil Cytoplasmic
;
Classification
;
Consensus
;
Cytoplasm*
;
Eosinophils
;
Granulomatosis with Polyangiitis
;
Humans
;
Incidence
;
Korea*
;
Microscopic Polyangiitis
;
Mortality
;
Rheumatology
;
Survival Rate
;
Vasculitis*
8.Eosinophilic Granulomatosis with Polyangiitis: Experiences in Korean Patients
Chan Bum CHOI ; Yong Beom PARK ; Sang Won LEE
Yonsei Medical Journal 2019;60(8):705-712
Eosinophilic granulomatosis with polyangiitis (EGPA) is one form of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. Identical to what has been called Churg-Strauss syndrome, EGPA exhibits both allergic and vasculitis features. EGPA was first described as a syndrome consisting of asthma, fever, eosinophilia, and organ involvement including heart failure, neuropathy, and kidney damage, by Churg and Strauss in 1951. On the basis of the 2012 Chapel Hill Consensus Conferences Nomenclature of Vasculitis, EGPA comprises three typical allergic components, including asthma, peripheral eosinophilia, and eosinophil-rich granuloma of the respiratory tracts. EGPA has three clinical and histological stages. The first is an allergic stage composed of asthma and sinusitis, and the second is an eosinophilic stage characterised by peripheral hypereosinophilia and intra-organ infiltration of eosinophils. The last is a vasculitic stage, including necrotising inflammation of small vessels and end-organ damage. In this review, we describe the classification criteria for EGPA and recommendations for the evaluation and management of EGPA with conventional and newly suggested drugs for EGPA. Also, we discuss a variety of clinical aspects such as predictive values for prognosis and associations with other Th2-mediated diseases and hepatitis B virus.
Antibodies, Antineutrophil Cytoplasmic
;
Asthma
;
Churg-Strauss Syndrome
;
Classification
;
Congresses as Topic
;
Consensus
;
Eosinophilia
;
Eosinophils
;
Fever
;
Granuloma
;
Granulomatosis with Polyangiitis
;
Heart Failure
;
Hepatitis B virus
;
Humans
;
Inflammation
;
Kidney
;
Prognosis
;
Respiratory System
;
Sinusitis
;
Vasculitis
9.Comparative Study of Benzoyl Peroxide Versus Erythromycin in Trichomycosis Axillaris and Pubis.
Beom Joon KIM ; Chong Won CHOI ; Chong Hyun WON ; Chang Hun HUH ; Myeung Nam KIM ; Byung In RO
Korean Journal of Medical Mycology 2005;10(2):70-75
BACKGROUND: Trichomycosis axillaris and pubis is a bacterial infection of the hair shaft. It is characterized by nodular thickening on the hair shaft, composed of colonies of aerobic Corynebacterium. Benzoyl peroxide and erythromycin topical application can be used successfully. OBJECTIVE: We performed this study to compare treatment efficacy of benzoyl peroxide and erythromycin in trichomycosis axillaris and pubis METHOD: The clinical study was made with 12 patients of trichomycosis axillaris and pubis. RESULT: Among 12 patients, 6 patients were treated by benzoyl peroxide topical application and the other by erythromycin. 1) All the affected patients were male, and mean age of onset was 31 years old. 2) Simultaneous involvement of axillae and pubis was found in 9 cases, and involvement of axillae only in 3 cases. 3) There was no statistically significant difference in the treatment efficacy between benzoyl peroxide and erythromycin (p> 0.05). 4) Infected hair shafts were removed by shaving in 7 cases. But shaving itself did not shorten the period for complete cure (p> 0.05). 5) Mean disease duration was 6.7 months and mean period for complete cure was 3.1 weeks. And there was no significant relation between disease duration and mean period for complete cure. 6) Only 1 case (8.3%) showed recurrence within 6 month-follow up, in which erythromycin topical application without shaving was used. 7) Among 12 cases, irritation and contact dermatitis were observed in 5 cases (41.7%). And these were all related with benzoyl peroxide application. CONCLUSION: Benzoyl peroxide is as effective as erythromycin in the treatment of trichomycosis axillaris and pubis. But, benzoyl peroxide have more side effect. Shaving itself is not necessag to treat trichomycosis.
Adult
;
Age of Onset
;
Axilla
;
Bacterial Infections
;
Benzoyl Peroxide*
;
Corynebacterium
;
Dermatitis, Contact
;
Erythromycin*
;
Hair
;
Humans
;
Male
;
Recurrence
;
Treatment Outcome
10.Is CO2 Gas Insufflation in Endoscopic Thyroidectomy Safe or Not?: A Prospective Study through the Continuous Measurement of the End-tidal CO2 Pressure.
Won Beom CHOI ; Yong Lai PARK ; Jun Ho CHOE ; Hung Dai KIM ; Won Gil BAE
Journal of the Korean Surgical Society 2007;73(4):290-293
PURPOSE: Endoscopic thyroidectomy has recently been widely used in clinical practice. The operative method can be classified into CO2gas insufflation and the gasless technique. This study assessed the safety of low pressure CO2gas insufflation (up to 6 mmHg) by performing continuous measurement of the end-tidal CO2 (ETCO2) pressure. METHODS: From March 2003 to October 2006, 95 patients (90 hemithyroidectomies and 5 total thyroidectomies) underwent endoscopic thyroidectomy. The low pressure CO2gas insufflation technique was applied in all cases. The ETCO2 pressure of the patients was measured by capnometry at the time of a pre-gas insufflation status (0 minutes) and at the time of post-CO2gas insufflation (30 minutes) and then it was measured every 30 minutes with also performing capnograms. We analyzed the ETCO2 pressure at the time of the pre-CO2gas insufflation status (0 min) and we compared this with that of each status by using paired T-test. RESULTS: For all 95 cases, the mean patient age was 36.2+/-9.1 (range: 21~57 years), the mean tumor size was 1.7+/-1.1 (range: 0.1~4.5 cm) and the mean operative time was 135.0+/-46.1 (range: 50~340 min). The mean ETCO2 pressure (mmHg) was 33.0+/-3.9 at the time of pre-CO2gas insufflation status (0 min); the mean ETCO2 pressure was 31.1+/-3.7 at 30 min (n=95), 33.5+/-3.7 at 60 min (n=95), 35.2+/-3.6 at 90 min (n=95), 34.9+/-3.7 at 120 min (n=90), 34.6+/-3.8 at 150 min (n=70), 34.1+/-3.4 at 180 min (n=40), 34.3+/-5.2 at 210 min (n=15) and 34.0+/-4.2 at 240 min (n=9). There was a significant difference the early post-CO2gas insufflation status (P<0.05 at 30 min, 90 min, 120 min), but there was no significant difference in the late post-CO2gas insufflation status (P>0.05; at 60 min, 150 min, 180 min, 210 min, 240 min). At each time point, the ETCO2 pressures were all within the normal range. CONCLUSION: We successfully performed endoscopic thyroidectomy with using the low pressure CO2gas insufflation technique and there were no significant complications. We think that performing endoscopic thyroidectomy with using the low pressure CO2gas insufflation technique is a safe procedure.
Humans
;
Insufflation*
;
Operative Time
;
Prospective Studies*
;
Reference Values
;
Thyroidectomy*