1.A Case of Nevus Comedonicus on Cavum Concha Treated by Excision.
Jae Beom PARK ; Jung Jin SHIN ; Byoung Joon SO ; Sung Kyu JUNG ; Il Hwan KIM
Korean Journal of Dermatology 2014;52(11):822-824
No abstract available.
Nevus*
2.Dexmedetomidine Use in Patients with 33degrees C Targeted Temperature Management: Focus on Bradycardia as an Adverse Effect.
Hyo Yeon SEO ; Byoung Joon OH ; Eun Jung PARK ; Young Gi MIN ; Sang Cheon CHOI
Korean Journal of Critical Care Medicine 2015;30(4):272-279
BACKGROUND: This study aimed to investigate bradycardia as an adverse effect after administration of dexmedetomidine during 33degrees C target temperature management. METHODS: A retrospective study was conducted on patients who underwent 33degrees C target temperature management in the emergency department during a 49-month study period. We collected data including age, sex, weight, diagnosis, bradycardia occurrence, target temperature management duration, sedative drug, and several clinical and laboratory results. We conducted logistic regression for an analysis of factors associated with bradycardia. RESULTS: A total of 68 patients were selected. Among them, 39 (57.4%) showed bradycardia, and 56 (82.4%) were treated with dexmedetomidine. The odds ratio for bradycardia in the carbon monoxide poisoning group compared to the cardiac arrest group and in patients with higher body weight were 7.448 (95% confidence interval [CI] 1.834-30.244, p = 0.005) and 1.058 (95% CI 1.002-1.123, p = 0.044), respectively. In the bradycardia with dexmedetomidine group, the infusion rate of dexmedetomidine was 0.41 +/- 0.15 microg/kg/h. Decisions of charged doctor's were 1) slowing infusion rate and 2) stopping infusion or administering atropine for bradycardia. No cases required cardiac pacing or worsened to asystole. CONCLUSIONS: Despite the frequent occurrence of bradycardia after administration of dexmedetomidine during 33degrees C target temperature management, bradycardia was completely recovered after reducing infusion rate or stopping infusion. However, reducing the infusion rate of dexmedetomidine lower than the standard maintenance dose could be necessary to prevent bradycardia from developing in patients with higher body weight or carbon monoxide poisoning during 33degrees C targeted temperature management.
Atropine
;
Body Weight
;
Bradycardia*
;
Carbon Monoxide Poisoning
;
Dexmedetomidine*
;
Diagnosis
;
Emergency Service, Hospital
;
Heart Arrest
;
Humans
;
Hypothermia, Induced
;
Logistic Models
;
Odds Ratio
;
Retrospective Studies
3.A proposal of staging system in chronic sinusitis.
Ki Yeun KIM ; Seog In PAIK ; Soon Il PARK ; Byoung Moon YOON ; Jong Chan HONG ; Dong Joon PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(4):713-720
No abstract available.
Sinusitis*
4.Prognostic Factors in Childhood IgA Nephropathy.
Byoung Soo CHO ; Deog Yoon KIM ; Jae Hyun PARK ; Pyung Kil KIM ; Hyeon Joo JEONG ; In Joon CHOI
Journal of the Korean Society of Pediatric Nephrology 1997;1(1):17-23
The authors report series of 360 cases of transthoracic fine-needle aspiration cytology (TFNA) from Oct. 1982, through Aug. 1986 at the Seoul National University Hospital. A diagnosis of neoplastic lesion was established in 50.3% of the cases. A non-neop- lastic diagnosis was made in 38.5%, nondiagnostic one in 6.5% and inadequate one in 4.7% of the total. Statistical findings on cytological diagnoses were as follows. Specificity was 100%: sensitivity, 92%; predictive value for positive, 1.0: predictive value for negative, 0.9; concordance rate, 84.2%: diagnostic accuracy in non-neoplastic lesion, 65.4%, and typing accuracy in malignant tumor, 0.77.
Biopsy, Fine-Needle
;
Diagnosis
;
Glomerulonephritis, IGA*
;
Immunoglobulin A*
;
Sensitivity and Specificity
;
Seoul
5.Effective Treatment of Suspicious Riehl's Melanosis Using Low Fluence 1,064 nm Q-switched Nd:YAG Laser and 595 nm Pulsed Dye Laser.
Sung Kyu JUNG ; Jae Beom PARK ; Byoung Joon SO ; Jie Hyun JEON ; Hwa Jung RYU ; Il Hwan KIM
Korean Journal of Dermatology 2014;52(8):589-590
No abstract available.
Lasers, Dye*
;
Melanosis*
6.Frequency of Humidifier and Humidifier Disinfectant Usage in Gyeonggi Provine.
Byoung Hak JEON ; Young Joon PARK
Environmental Health and Toxicology 2012;27(1):e2012002-
OBJECTIVES: This study is a cross-sectional study to investigate the frequency of humidifier and humidifier disinfectant usage in the general population. METHODS: A questionnaire was applied to 94 subjects (46 male, 48 female) from the general population of Gyeonggi Province. The questionnaire consisted of 3 scales (general characteristics, 5 items about humidifier usage, 5 items about humidifier disinfectant usage). RESULTS: Thirty-five (37.2%) of the 94 subjects use a humidifier and humidifier disinfectant usage was found to be 18.1%. The frequency of humidifier usage is 4.8 times per a week and the humidifier disinfectant usage is 2.4 times per a week. Humidifier usage rate was highest in January. and then tended to rise gradually from October. CONCLUSIONS: Although this study population was not representative, we can say that approximately 50 percent of the humidifier users use a humidifier disinfectant and the trend of using a humidifier has shown seasonality.
Cross-Sectional Studies
;
Humans
;
Male
;
Seasons
;
Weights and Measures
;
Surveys and Questionnaires
7.Liposarcoma which occured in the extremities.
Sung Joon KIM ; Tai Seung KIM ; Kwang Hyun LEE ; Jin Sub KIM ; Moon Hyang PARK ; Byoung Suck KIM
The Journal of the Korean Orthopaedic Association 1992;27(1):281-287
No abstract available.
Extremities*
;
Liposarcoma*
8.Maximum Decompressive Hemicraniectomy for Patients with Malignant Hemispheric Infarction
Youngseok KWAK ; Byoung Joon KIM ; Jaechan PARK
Journal of Cerebrovascular and Endovascular Neurosurgery 2019;21(3):138-143
OBJECTIVE: The authors applied maximum external decompression for malignant hemispheric infarction and investigated the functional outcome according to the patient age.METHODS: Twenty-five patients with malignant hemispheric infarction were treated using a hemicraniectomy with maximum external decompression, comprising a larger (>14cm) hemicraniectomy, resection of the temporalis muscle and its fascia, spaciously expansive duraplasty, and approximation of the skin flap. The medical and diagnostic imaging records for the patients were reviewed, and 1-year functional outcome data obtained for the younger group (aged ≤ 60 years) and elderly group (aged > 60 years).RESULTS: The patients (n=25) who underwent maximum surgical decompression revealed a minimal mortality rate (n=2, 8.0%). The patients (n=14) in the younger group all survived with mRS scores of 2 (n=1, 7.1%), 3 (n=7, 50.0%), 4 (n=3, 21.4%), or 5 (n=3, 21.4%). A majority of the younger patients (57.1% with mRS ≤3) lived with functional independence. When the 1-year mRS scores were dichotomized between favorable (mRS ≤3) and unfavorable (mRS ≥4) outcomes, the younger group had significantly more patients with a favorable outcome than the elderly group (57.1% versus 9.1%, p=0.033). In contrast, in the elderly group, most patients showed unfavorable outcomes with the mRS scores of 4 (n=5, 45.5%), 5 (n=3, 27.3%), or 6 (n=2, 18.2%), whereas only one patient showed favorable outcome (mRS 3). A majority of the elderly patients (45.5% with mRS 4) survived with moderately severe disability.CONCLUSION: For malignant hemispheric infarction, a hemicraniectomy with maximum external decompression was found to considerably increase survival with a favorable outcome in functional independence (mRS ≤3) for younger patients aged ≤60 years. It can be optimal surgical treatment for younger patients.
Aged
;
Cerebral Infarction
;
Decompression
;
Decompression, Surgical
;
Diagnostic Imaging
;
Fascia
;
Humans
;
Infarction
;
Mortality
;
Skin
;
Treatment Outcome
9.Postoperative Clipping Status after a Pterional versus Interhemispheric Approach for High-Positioned Anterior Communicating Artery Aneurysms
Myungsoo KIM ; Byoung-Joon KIM ; Wonsoo SON ; Jaechan PARK
Journal of Korean Neurosurgical Society 2021;64(4):524-533
Objective:
: When treating high-positioned anterior communicating artery (ACoA) aneurysms, pterional-transsylvian and interhemispheric approaches are both viable options, yet comparative studies of these two surgical approaches are rare. Accordingly, this retrospective study investigated the surgical results of both approaches.
Methods:
: Twenty-four patients underwent a pterional approach (n=11) or interhemispheric approach (n=13), including a unilateral low anterior interhemispheric approach or bifrontal interhemispheric approach, for high-positioned ACoA aneurysms with an aneurysm dome height >15 mm and aneurysm neck height >10 mm both measured from the level of the anterior clinoid process. The clinical and radiological data were reviewed to investigate the surgical results and risk factors of incomplete clipping.
Results:
: The pterional patient group showed a significantly higher incidence of incomplete clipping than the interhemispheric patient group (p=0.031). Four patients (36.4%) who underwent a pterional approach showed a postclipping aneurysm remnant, whereas all the patients who experienced an interhemispheric approach showed complete clipping. In one case, the aneurysm remnant was obliterated by coiling, while follow-up of the other three cases showed the remnants remained limited to the aneurysm base. A multivariate analysis revealed that a pterional approach for a large aneurysm with a diameter >8 mm presented a statistically significant risk factor for incomplete clipping.
Conclusion
: For high-positioned ACoA aneurysms with a dome height >15 mm and neck height >10 mm above the level of the anterior clinoid process, a large aneurysm with a diameter >8 mm can be clipped more completely via an interhemispheric approach than via a pterional approach.
10.Postoperative Clipping Status after a Pterional versus Interhemispheric Approach for High-Positioned Anterior Communicating Artery Aneurysms
Myungsoo KIM ; Byoung-Joon KIM ; Wonsoo SON ; Jaechan PARK
Journal of Korean Neurosurgical Society 2021;64(4):524-533
Objective:
: When treating high-positioned anterior communicating artery (ACoA) aneurysms, pterional-transsylvian and interhemispheric approaches are both viable options, yet comparative studies of these two surgical approaches are rare. Accordingly, this retrospective study investigated the surgical results of both approaches.
Methods:
: Twenty-four patients underwent a pterional approach (n=11) or interhemispheric approach (n=13), including a unilateral low anterior interhemispheric approach or bifrontal interhemispheric approach, for high-positioned ACoA aneurysms with an aneurysm dome height >15 mm and aneurysm neck height >10 mm both measured from the level of the anterior clinoid process. The clinical and radiological data were reviewed to investigate the surgical results and risk factors of incomplete clipping.
Results:
: The pterional patient group showed a significantly higher incidence of incomplete clipping than the interhemispheric patient group (p=0.031). Four patients (36.4%) who underwent a pterional approach showed a postclipping aneurysm remnant, whereas all the patients who experienced an interhemispheric approach showed complete clipping. In one case, the aneurysm remnant was obliterated by coiling, while follow-up of the other three cases showed the remnants remained limited to the aneurysm base. A multivariate analysis revealed that a pterional approach for a large aneurysm with a diameter >8 mm presented a statistically significant risk factor for incomplete clipping.
Conclusion
: For high-positioned ACoA aneurysms with a dome height >15 mm and neck height >10 mm above the level of the anterior clinoid process, a large aneurysm with a diameter >8 mm can be clipped more completely via an interhemispheric approach than via a pterional approach.