1.Intermediate Myasthenia Syndrome Following Organophosphate Intoxication.
Jai Woog KO ; Jun Seok PARK ; Kyung Ryung LEE ; Sung Pil CHUNG ; Hahn Shick LEE
Journal of the Korean Society of Emergency Medicine 2000;11(4):579-585
BACKGROUND: Intermediate myasthenia syndrome(IMS) is thought to have clinical importance because it may cause sudden respiratory failure during the recovery phase of a cholinergic crisis of organophosphate poisoning. We designed this study to identify the prevalence, the inducing agent, clinical predictor, and the proposed treatment of IMS. METHODS: Patients who had admitted with the diagnosis of acute organophosphate poisoning from 1992 to 1998 at two teaching hospitals were enrolled in this study. We selected the cases of IMS based on a review of medical records using modified He's criteria. RESULTS: Twelve(12) out of 110 patients with acute organophosphate poisoning were diagnosed for a prevalence at 10.9%. The drug inducing IMS were identified as dichlorvos, fenthion, EPN, methidathion, and phosphamidon. The occurrence of IMS was not related to either the initial treatment with atropine and pralidoxime, or the level of serum cholinesterase. Complications were pneumonia, sepsis, pancreatitis, and pseudomembranous colitis, etc. Eleven(11) patients were discharged without sequelae, and one patient was discharged as a hopeless care. CONCLUSION: This study suggests that IMS is not rare, so close observation is required to detect IMS in organophosphate-poisoning patients. Also, more studies are required to find predictors and treatments.
Atropine
;
Cholinesterases
;
Diagnosis
;
Dichlorvos
;
Enterocolitis, Pseudomembranous
;
Fenthion
;
Hospitals, Teaching
;
Humans
;
Medical Records
;
Organophosphate Poisoning
;
Pancreatitis
;
Phosphamidon
;
Pneumonia
;
Prevalence
;
Respiratory Insufficiency
;
Sepsis
2.A Case of Subcutaneous Granuloma Pyogenicum.
Dae Sung LEE ; Ik Jun KO ; Baik Kee CHO ; Won HOUH
Korean Journal of Dermatology 1986;24(3):429-432
We report herein a case of subcutaneous granuloma pyogenicum developed on the fourth interdigital space of right foot of 36-year-old housewife. Histopathological findings showed characteristic lobular capillary hemangioma. The subcutaneous nodule had a thick fibrous capsule and were composed of multiple, confluent cellular, angiomatous lobules separated by loose fibrous tissue. Most lobules contained round, oval or angular capillaries, lined by proliferated prominant endothelial cells projecting into the lumina of the vessels. Clinically, the lesion was a tender subcutaneous nodule with macerated surface aind soft corn or traumatic epidermal cyst were considered in the differential diagnoses.
Adult
;
Capillaries
;
Diagnosis, Differential
;
Endothelial Cells
;
Epidermal Cyst
;
Foot
;
Granuloma*
;
Granuloma, Pyogenic*
;
Humans
;
Zea mays
3.A case of the inverted papilloma with squamous cell carcinoma in the nose and maxillary sinus.
Chang Gul KO ; Hae Jun HONG ; Dong Soo KIM ; Sung Hak KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(4):836-841
No abstract available.
Carcinoma, Squamous Cell*
;
Maxillary Sinus*
;
Nose*
;
Papilloma, Inverted*
4.Surface alterations following instrumentation with a nylon or metal brush evaluated with confocal microscopy
Young Sung KIM ; Jun Beom PARK ; Youngkyung KO
Journal of Periodontal & Implant Science 2019;49(5):310-318
PURPOSE: Surface alterations of titanium discs following instrumentation with either a nylon brush or a metal brush were evaluated. METHODS: A total of 27 titanium discs with 3 surface types (9 discs for each type), including machined (M) surfaces, sandblasted and acid-etched (SA) surfaces, and surfaces treated by resorbable blast media (RBM), were used. Three discs were instrumented with a nylon brush, another 3 discs were instrumented with a metal brush, and the remaining 3 discs were used as controls for each surface type. Surface properties including the arithmetic mean value of a linear profile (Ra), maximum height of a linear profile (Rz), skewness of the assessed linear profile (Rsk), arithmetic mean height of a surface (Sa), maximum height of a surface (Sz), developed interfacial area ratio (Sdr), skewness of a surface profile (Ssk), and kurtosis of a surface profile (Sku) were measured using confocal microscopy. RESULTS: Instrumentation with the nylon brush increased the Ra, Sa, and Sdr of the M surfaces. On the SA surfaces, Ra, Sa and Sdr decreased after nylon brush use. Meanwhile, the roughness of the RBM surface was not affected by the nylon brush. The use of the metal brush also increased the Ra, Sa, and Sdr of the M surface; however, the increase in Sdr was not statistically significant (P=0.119). The decreases in the Rz, Sz, Ra, Sa, and Sdr of the SA surfaces were remarkable. On the RBM surfaces, the use of the metal brush did not cause changes in Ra and Sa, whereas Rz, Sz, and Sdr were reduced. CONCLUSIONS: Titanium surfaces were altered when instrumented either with a nylon brush or a metal brush. Hence, it is recommended that nylon or metal brushes be used with caution in order to avoid damaging the implant fixture/abutment surface.
Dental Implants
;
Microscopy, Confocal
;
Nylons
;
Peri-Implantitis
;
Surface Properties
;
Titanium
5.Chronic Progressive Radiation Myelopathy Associated with Radiation Therapy: A case report.
Po Sung JUN ; Ghi Chan KIM ; Hyun Yoon KO
Journal of the Korean Academy of Rehabilitation Medicine 1997;21(4):790-794
Chronic progressive radiation myelopathy(CPRM) is a rare but serious complication of radiation therapy. It's exact cause is unknown and the diagnosis is usually made based on the exclusion of other causes of myelopathy. Magnetic resonance imaging(MRI) with gadolinium- diethylenetriamine pentaacetic acid(DTPA) enhancement seems to be useful for the diagnosis of CPRM. There is no known effective treatment and the complication is irreversible. We report a case of CPRM after radiation therapy for subglottic cancer which was not respond to high-dose steroid therapy with review of literature.
Diagnosis
;
Spinal Cord Diseases*
6.Diagnostic Accuracy of BD MAX MDR-TB Assay Performed on Bronchoscopy Specimens in Patients with Suspected Pulmonary Tuberculosis
Tuberculosis and Respiratory Diseases 2025;88(1):150-158
Background:
Several novel molecular platforms using nucleic acid amplification tests have been developed for the diagnosis of pulmonary tuberculosis (PTB) and rapid detection of isoniazid and rifampin resistance. Among them, the BD MAX MDR-TB assay (BD MAX) has shown high sensitivity and specificity; however, its diagnostic accuracy performed on bronchoscopy specimens has not been reported.
Methods:
We retrospectively reviewed the medical records of patients with suspected PTB who underwent bronchoscopy. Patients who underwent BD MAX testing of bronchoscopy specimens were included in the final analysis. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for PTB diagnosis were calculated using a positive culture of Mycobacterium tuberculosis as the reference standard.
Results:
Of 114 patients, 34 had culture-confirmed PTB. The sensitivity, specificity, PPV, and NPV of BD MAX performed on bronchoscopy specimens for the diagnosis of PTB were 79.4%, 88.8%, 75.0%, and 91.0%, respectively. The sensitivity of BD MAX was superior to that of acid-fast bacillus smear (79.4% vs. 38.2%, p<0.001).
Conclusion
BD MAX performed on bronchoscopy specimens showed high accuracy for diagnosing PTB. BD MAX can be performed on bronchoscopy specimens in patients with suspected PTB.
7.Diagnostic Accuracy of BD MAX MDR-TB Assay Performed on Bronchoscopy Specimens in Patients with Suspected Pulmonary Tuberculosis
Tuberculosis and Respiratory Diseases 2025;88(1):150-158
Background:
Several novel molecular platforms using nucleic acid amplification tests have been developed for the diagnosis of pulmonary tuberculosis (PTB) and rapid detection of isoniazid and rifampin resistance. Among them, the BD MAX MDR-TB assay (BD MAX) has shown high sensitivity and specificity; however, its diagnostic accuracy performed on bronchoscopy specimens has not been reported.
Methods:
We retrospectively reviewed the medical records of patients with suspected PTB who underwent bronchoscopy. Patients who underwent BD MAX testing of bronchoscopy specimens were included in the final analysis. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for PTB diagnosis were calculated using a positive culture of Mycobacterium tuberculosis as the reference standard.
Results:
Of 114 patients, 34 had culture-confirmed PTB. The sensitivity, specificity, PPV, and NPV of BD MAX performed on bronchoscopy specimens for the diagnosis of PTB were 79.4%, 88.8%, 75.0%, and 91.0%, respectively. The sensitivity of BD MAX was superior to that of acid-fast bacillus smear (79.4% vs. 38.2%, p<0.001).
Conclusion
BD MAX performed on bronchoscopy specimens showed high accuracy for diagnosing PTB. BD MAX can be performed on bronchoscopy specimens in patients with suspected PTB.
8.Diagnostic Accuracy of BD MAX MDR-TB Assay Performed on Bronchoscopy Specimens in Patients with Suspected Pulmonary Tuberculosis
Tuberculosis and Respiratory Diseases 2025;88(1):150-158
Background:
Several novel molecular platforms using nucleic acid amplification tests have been developed for the diagnosis of pulmonary tuberculosis (PTB) and rapid detection of isoniazid and rifampin resistance. Among them, the BD MAX MDR-TB assay (BD MAX) has shown high sensitivity and specificity; however, its diagnostic accuracy performed on bronchoscopy specimens has not been reported.
Methods:
We retrospectively reviewed the medical records of patients with suspected PTB who underwent bronchoscopy. Patients who underwent BD MAX testing of bronchoscopy specimens were included in the final analysis. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for PTB diagnosis were calculated using a positive culture of Mycobacterium tuberculosis as the reference standard.
Results:
Of 114 patients, 34 had culture-confirmed PTB. The sensitivity, specificity, PPV, and NPV of BD MAX performed on bronchoscopy specimens for the diagnosis of PTB were 79.4%, 88.8%, 75.0%, and 91.0%, respectively. The sensitivity of BD MAX was superior to that of acid-fast bacillus smear (79.4% vs. 38.2%, p<0.001).
Conclusion
BD MAX performed on bronchoscopy specimens showed high accuracy for diagnosing PTB. BD MAX can be performed on bronchoscopy specimens in patients with suspected PTB.
9.Diagnostic Accuracy of BD MAX MDR-TB Assay Performed on Bronchoscopy Specimens in Patients with Suspected Pulmonary Tuberculosis
Tuberculosis and Respiratory Diseases 2025;88(1):150-158
Background:
Several novel molecular platforms using nucleic acid amplification tests have been developed for the diagnosis of pulmonary tuberculosis (PTB) and rapid detection of isoniazid and rifampin resistance. Among them, the BD MAX MDR-TB assay (BD MAX) has shown high sensitivity and specificity; however, its diagnostic accuracy performed on bronchoscopy specimens has not been reported.
Methods:
We retrospectively reviewed the medical records of patients with suspected PTB who underwent bronchoscopy. Patients who underwent BD MAX testing of bronchoscopy specimens were included in the final analysis. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for PTB diagnosis were calculated using a positive culture of Mycobacterium tuberculosis as the reference standard.
Results:
Of 114 patients, 34 had culture-confirmed PTB. The sensitivity, specificity, PPV, and NPV of BD MAX performed on bronchoscopy specimens for the diagnosis of PTB were 79.4%, 88.8%, 75.0%, and 91.0%, respectively. The sensitivity of BD MAX was superior to that of acid-fast bacillus smear (79.4% vs. 38.2%, p<0.001).
Conclusion
BD MAX performed on bronchoscopy specimens showed high accuracy for diagnosing PTB. BD MAX can be performed on bronchoscopy specimens in patients with suspected PTB.
10.Diagnostic Accuracy of BD MAX MDR-TB Assay Performed on Bronchoscopy Specimens in Patients with Suspected Pulmonary Tuberculosis
Tuberculosis and Respiratory Diseases 2025;88(1):150-158
Background:
Several novel molecular platforms using nucleic acid amplification tests have been developed for the diagnosis of pulmonary tuberculosis (PTB) and rapid detection of isoniazid and rifampin resistance. Among them, the BD MAX MDR-TB assay (BD MAX) has shown high sensitivity and specificity; however, its diagnostic accuracy performed on bronchoscopy specimens has not been reported.
Methods:
We retrospectively reviewed the medical records of patients with suspected PTB who underwent bronchoscopy. Patients who underwent BD MAX testing of bronchoscopy specimens were included in the final analysis. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for PTB diagnosis were calculated using a positive culture of Mycobacterium tuberculosis as the reference standard.
Results:
Of 114 patients, 34 had culture-confirmed PTB. The sensitivity, specificity, PPV, and NPV of BD MAX performed on bronchoscopy specimens for the diagnosis of PTB were 79.4%, 88.8%, 75.0%, and 91.0%, respectively. The sensitivity of BD MAX was superior to that of acid-fast bacillus smear (79.4% vs. 38.2%, p<0.001).
Conclusion
BD MAX performed on bronchoscopy specimens showed high accuracy for diagnosing PTB. BD MAX can be performed on bronchoscopy specimens in patients with suspected PTB.