1.The Study of Supraglottic Movements and Surface Laryngeal EMG.
Cheol Min AHN ; Hoon JANG ; Bo Sub LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 1998;41(8):1047-1053
BACKGROUND AND OBJECTIVES: Hyperfunctional voice disorders caused by the over-adduction of the vocal cords have various supraglottic movements during phonation. These various hyperkinetic supraglottic movements will be able to affect the vocal sound production. The aim of this study is to evaluate the relation between supraglottic movements and movement of extralaryngeal muscles using surface laryngeal EMG. MATERIALS AND METHODS: The subject who had normal anatomic and physiologic laryngeal function produced the vocal sounds of the 3 types of supraglottic movement. In each type, when three different pitch sounds were produced, surface laryngeal EMG was recorded and perceptual and acoustic analysis of vocal sound were performed. RESULTS: Voice with contracted supraglottic movement had strained sound in perceptual analysis, increased jitter and shimmer in MDVP, and increased amplitude in surface laryngeal EMG. Voice with lowered and widened supraglottic movement had resonant sound in perceptual analysis, decreased jitter and shimmer in MDVP, decreased amplitude in surface laryngeal EMG. CONCLUSION: Voice was different with various types of supraglottic movements and surface laryngeal EMG findings were also different with various types of supraglottic movements.
Acoustics
;
Muscles
;
Phonation
;
Vocal Cords
;
Voice
;
Voice Disorders
2.The Impact of Hospital Volume and Region on Mortality, Medical Costs, and Length of Hospital Stay in Elderly Patients Following Hip Fracture:A Nationwide Claims Database Analysis
Seung Hoon KIM ; Suk-Yong JANG ; Yonghan CHA ; Hajun JANG ; Bo-Yeon KIM ; Hyo-Jung LEE ; Gui-Ok KIM
Clinics in Orthopedic Surgery 2025;17(1):80-90
Background:
The purpose of our study was to analyze the effects of hospital volume and region on in-hospital and long-term mortality, direct medical costs (DMCs), and length of hospital stay (LOS) in elderly patients following hip fracture, utilizing nationwide claims data.
Methods:
This retrospective nationwide study sourced its subjects from the Korean National Health Insurance Review and Assessment Service database spanning from January 2011 to December 2018. A generalized estimating equation model with a Poisson distribution and logarithmic link function was used to estimate adjusted odds ratios (aORs) and 95% CIs to assess the association of hospital volume with in-hospital and 1-year mortality, DMCs, and LOS .
Results:
A total of 172,144 patients were included. Comparing the risk of in-hospital death between high-volume and low-volume hospitals, the risk of in-hospital death was 1.2 times higher at low-volume hospitals (aOR, 1.20; 95% CI, 1.07–1.33; p = 0.002).Additionally, the risk of death at 1 year was 1.05 times higher at low-volume hospitals (aOR, 1.05; 95% CI, 1.01–1.09; p = 0.008) compared to high-volume hospitals. DMCs were 0.84 times lower at low-volume hospitals for in-hospital period (aOR, 0.84; 95% CI, 0.84–0.85; p < 0.001) and 0.87 times lower for 1 year (aOR, 0.87; 95% CI, 0.86–0.88; p < 0.001) compared to high-volume hospitals. In-hospital LOS was 1.21 times longer at low-volume hospitals (aOR, 1.21; 95% CI, 1.20–1.22; p < 0.001) than at high-volume hospitals. In addition, the risk of in-hospital death was 1.22 times higher (aOR, 1.22; 95% CI, 1.12–1.33; p < 0.001) and the risk of 1-year death was 1.07 times higher (aOR, 1.07; 95% CI, 1.04–1.10; p < 0.001) at rural hospitals compared to urban hospitals.
Conclusions
Clinicians should focus on improving clinical outcomes for hip fracture patients in low-volume and rural hospital settings, with a specific emphasis on reducing mortality rates.
3.The Impact of Hospital Volume and Region on Mortality, Medical Costs, and Length of Hospital Stay in Elderly Patients Following Hip Fracture:A Nationwide Claims Database Analysis
Seung Hoon KIM ; Suk-Yong JANG ; Yonghan CHA ; Hajun JANG ; Bo-Yeon KIM ; Hyo-Jung LEE ; Gui-Ok KIM
Clinics in Orthopedic Surgery 2025;17(1):80-90
Background:
The purpose of our study was to analyze the effects of hospital volume and region on in-hospital and long-term mortality, direct medical costs (DMCs), and length of hospital stay (LOS) in elderly patients following hip fracture, utilizing nationwide claims data.
Methods:
This retrospective nationwide study sourced its subjects from the Korean National Health Insurance Review and Assessment Service database spanning from January 2011 to December 2018. A generalized estimating equation model with a Poisson distribution and logarithmic link function was used to estimate adjusted odds ratios (aORs) and 95% CIs to assess the association of hospital volume with in-hospital and 1-year mortality, DMCs, and LOS .
Results:
A total of 172,144 patients were included. Comparing the risk of in-hospital death between high-volume and low-volume hospitals, the risk of in-hospital death was 1.2 times higher at low-volume hospitals (aOR, 1.20; 95% CI, 1.07–1.33; p = 0.002).Additionally, the risk of death at 1 year was 1.05 times higher at low-volume hospitals (aOR, 1.05; 95% CI, 1.01–1.09; p = 0.008) compared to high-volume hospitals. DMCs were 0.84 times lower at low-volume hospitals for in-hospital period (aOR, 0.84; 95% CI, 0.84–0.85; p < 0.001) and 0.87 times lower for 1 year (aOR, 0.87; 95% CI, 0.86–0.88; p < 0.001) compared to high-volume hospitals. In-hospital LOS was 1.21 times longer at low-volume hospitals (aOR, 1.21; 95% CI, 1.20–1.22; p < 0.001) than at high-volume hospitals. In addition, the risk of in-hospital death was 1.22 times higher (aOR, 1.22; 95% CI, 1.12–1.33; p < 0.001) and the risk of 1-year death was 1.07 times higher (aOR, 1.07; 95% CI, 1.04–1.10; p < 0.001) at rural hospitals compared to urban hospitals.
Conclusions
Clinicians should focus on improving clinical outcomes for hip fracture patients in low-volume and rural hospital settings, with a specific emphasis on reducing mortality rates.
4.The Impact of Hospital Volume and Region on Mortality, Medical Costs, and Length of Hospital Stay in Elderly Patients Following Hip Fracture:A Nationwide Claims Database Analysis
Seung Hoon KIM ; Suk-Yong JANG ; Yonghan CHA ; Hajun JANG ; Bo-Yeon KIM ; Hyo-Jung LEE ; Gui-Ok KIM
Clinics in Orthopedic Surgery 2025;17(1):80-90
Background:
The purpose of our study was to analyze the effects of hospital volume and region on in-hospital and long-term mortality, direct medical costs (DMCs), and length of hospital stay (LOS) in elderly patients following hip fracture, utilizing nationwide claims data.
Methods:
This retrospective nationwide study sourced its subjects from the Korean National Health Insurance Review and Assessment Service database spanning from January 2011 to December 2018. A generalized estimating equation model with a Poisson distribution and logarithmic link function was used to estimate adjusted odds ratios (aORs) and 95% CIs to assess the association of hospital volume with in-hospital and 1-year mortality, DMCs, and LOS .
Results:
A total of 172,144 patients were included. Comparing the risk of in-hospital death between high-volume and low-volume hospitals, the risk of in-hospital death was 1.2 times higher at low-volume hospitals (aOR, 1.20; 95% CI, 1.07–1.33; p = 0.002).Additionally, the risk of death at 1 year was 1.05 times higher at low-volume hospitals (aOR, 1.05; 95% CI, 1.01–1.09; p = 0.008) compared to high-volume hospitals. DMCs were 0.84 times lower at low-volume hospitals for in-hospital period (aOR, 0.84; 95% CI, 0.84–0.85; p < 0.001) and 0.87 times lower for 1 year (aOR, 0.87; 95% CI, 0.86–0.88; p < 0.001) compared to high-volume hospitals. In-hospital LOS was 1.21 times longer at low-volume hospitals (aOR, 1.21; 95% CI, 1.20–1.22; p < 0.001) than at high-volume hospitals. In addition, the risk of in-hospital death was 1.22 times higher (aOR, 1.22; 95% CI, 1.12–1.33; p < 0.001) and the risk of 1-year death was 1.07 times higher (aOR, 1.07; 95% CI, 1.04–1.10; p < 0.001) at rural hospitals compared to urban hospitals.
Conclusions
Clinicians should focus on improving clinical outcomes for hip fracture patients in low-volume and rural hospital settings, with a specific emphasis on reducing mortality rates.
5.The Impact of Hospital Volume and Region on Mortality, Medical Costs, and Length of Hospital Stay in Elderly Patients Following Hip Fracture:A Nationwide Claims Database Analysis
Seung Hoon KIM ; Suk-Yong JANG ; Yonghan CHA ; Hajun JANG ; Bo-Yeon KIM ; Hyo-Jung LEE ; Gui-Ok KIM
Clinics in Orthopedic Surgery 2025;17(1):80-90
Background:
The purpose of our study was to analyze the effects of hospital volume and region on in-hospital and long-term mortality, direct medical costs (DMCs), and length of hospital stay (LOS) in elderly patients following hip fracture, utilizing nationwide claims data.
Methods:
This retrospective nationwide study sourced its subjects from the Korean National Health Insurance Review and Assessment Service database spanning from January 2011 to December 2018. A generalized estimating equation model with a Poisson distribution and logarithmic link function was used to estimate adjusted odds ratios (aORs) and 95% CIs to assess the association of hospital volume with in-hospital and 1-year mortality, DMCs, and LOS .
Results:
A total of 172,144 patients were included. Comparing the risk of in-hospital death between high-volume and low-volume hospitals, the risk of in-hospital death was 1.2 times higher at low-volume hospitals (aOR, 1.20; 95% CI, 1.07–1.33; p = 0.002).Additionally, the risk of death at 1 year was 1.05 times higher at low-volume hospitals (aOR, 1.05; 95% CI, 1.01–1.09; p = 0.008) compared to high-volume hospitals. DMCs were 0.84 times lower at low-volume hospitals for in-hospital period (aOR, 0.84; 95% CI, 0.84–0.85; p < 0.001) and 0.87 times lower for 1 year (aOR, 0.87; 95% CI, 0.86–0.88; p < 0.001) compared to high-volume hospitals. In-hospital LOS was 1.21 times longer at low-volume hospitals (aOR, 1.21; 95% CI, 1.20–1.22; p < 0.001) than at high-volume hospitals. In addition, the risk of in-hospital death was 1.22 times higher (aOR, 1.22; 95% CI, 1.12–1.33; p < 0.001) and the risk of 1-year death was 1.07 times higher (aOR, 1.07; 95% CI, 1.04–1.10; p < 0.001) at rural hospitals compared to urban hospitals.
Conclusions
Clinicians should focus on improving clinical outcomes for hip fracture patients in low-volume and rural hospital settings, with a specific emphasis on reducing mortality rates.
6.Comparison of Surgical Outcomes in Thoracolumbar Fractures Having 6 or Less Scored by Load-Sharing Classification Based on Posterior Fusion Level.
Jung Hoon KIM ; Sung Soo KIM ; Jin Ho CHO ; Bo Hoon JANG ; Jin Hwan KIM
Journal of the Korean Fracture Society 2013;26(1):21-26
PURPOSE: The aim of this study is to decide the optimal level of fusion with comparing the results between the short segment fusion and long segment fusion treated with pedicle screw instrumentation, including fractured vertebra in thoracolumbar junctional fractures. MATERIALS AND METHODS: From February 2000 to November 2009, fifty three patients with junctional fracture of thoracolumbar spine were treated with pedicle screws and posterior fusion at our hospital. They were divided into two groups, the short segment group and long segment group. Preoperatively, immediate postoperative and last follow-up lateral radiological evaluation was done by measuring the correction and loss of segmental kyphosis, wedge angle, body compression rate and instrumented vertebra angle. In addition, operation time and amount of intraoperative bleeding were measured. RESULTS: There were no significant differences of statistical analysis regarding the radiological variables between the two groups, especially the loss of corrected segmental kyphosis, wedge angle, body compression rate and instrumented vertebra angle (p>0.05). However, operative time in the short segment group (234 minutes) was shorter than the long segment group (284 minutes), and there was statistical significance (p=0.002). CONCLUSION: We recommend the short segment transpediculr instrumentation one level above and one level below, including the fractured vertebra for thoracolumbar junctional fracture with 6 points or less of the load-sharing score.
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Kyphosis
;
Operative Time
;
Spine
7.The Comparison of Bone Scan and MRI in Osteoporotic Compression Fractures.
Jung Hoon KIM ; Jong In KIM ; Bo Hoon JANG ; Jung Gook SEO ; Jin Hwan KIM
Asian Spine Journal 2010;4(2):89-95
STUDY DESIGN: Retrospective study. PURPOSE: To estimate the usefulness of bone scan and magnetic resonance imaging (MRI) for the diagnosis of new fracture in osteoporotic vertebral fractures. OVERVIEW OF LITERATURE: The diagnosis of new fractrure in osteoporotic vertebral fractures requires simple X-ray and supplementary studies. METHODS: We analyzed 87 vertebrae in 44 patients, who diagnosed with osteoporotic vertebral fractures using bone scan and MRI within 2 months interval between August 2001 and July 2008. We compared hot uptakes in bone scan with MRI findings such as new fractures, old fractures and degenerative lesions. RESULTS: Hot uptakes in bone scan was matched to 48 new fractures, 26 old fractures and 13 degenerative lesions in MRI findings. It was 55% of concordance between hot uptakes in bone scan and new fractures in MRI. The rate of new vertebral fractures confirmed by MRI according to 1 level hot uptakes in bone scan was 96%, 2 levels was 50% and 3 more levels was 36%. CONCLUSIONS: The diagnosis of new fracture in osteoporotic vertebral fractures requires simple X-ray and supplementary studies such as bone scan and MRI. We recommend more careful interpretation in multiple osteoporotic vertebral fracture patients about hot uptake lesions of bone scan.
Fractures, Compression
;
Humans
;
Magnetic Resonance Imaging
;
Retrospective Studies
;
Spine
8.Role of urine osmolality as a predictor of the effectiveness of combined imipramine and desmopressin in the treatment of monosymptomatic nocturnal enuresis.
Kwon Soo LEE ; Jun Bo CHANG ; Jae Yoon JANG ; Young Hwii KO ; Yong Hoon PARK ; Phil Hyun SONG
Yeungnam University Journal of Medicine 2015;32(2):85-89
BACKGROUND: We examined the usefulness of urine osmolality, as a predictive factor in the treatment of monosymptomatic nocturnal enuresis (NE) with combination therapy of imipramine and desmopressin. METHODS: From May 2014 to April 2015, 59 monosymptomatic NE patients participated in this study. Early morning urine osmolality was measured at 1 week and 1 day before combination therapy of imipramine and desmopressin, and at 1 week and 2 weeks after therapy. The response to combination therapy was evaluated at 3 months after treatment. The mean period of combination therapy was 6.4+/-4.2 weeks. Therapeutic response was classified as complete (0-1 wet night/week), partial (over 50% reduction of night) and non-responders (less than 50% reduction of night). RESULTS: The cumulative rate of the complete and partial responders was 76.3%. Among the 3 groups, the statistically lowest value of pre-treatment urine osmolality was observed in the complete responder group (p<0.001). Urine osmolality increased in all groups after treatment, however, statistically the greatest difference between pre and post-treatment urine osmolality was observed in the complete responder group (p=0.024). No serious side effects were observed. CONCLUSION: Early morning urine osmolality and change of urine osmolality between pre and post-treatment have predictive values in the response to combined imipramine and desmopressin for treatment of monosymptomatic NE.
Deamino Arginine Vasopressin*
;
Enuresis
;
Humans
;
Imipramine*
;
Nocturnal Enuresis*
;
Osmolar Concentration*
9.A Case of Interruption of Aorta with Patent Ductus Arteriosus.
Jae Kyung CHOI ; Chang Hoon JANG ; Ho Joong YOON ; Jong Mok YANG ; Wook Sung CHUNG ; Seung Suk CHUN ; Jae Hyung KIM ; Kyu Bo CHOI ; Soon Jo HONG
Korean Circulation Journal 1991;21(5):914-918
Interruption of the aortic arch is an uncommon congenital cardiovascular malformation invariably accompanied by other cardiovascular anomalies. This carries a 76% mortality rate in the first month of life. We recently experienced a case of interruption of the aortic arch with patent ductus arteriosus in a 21-year-old man with systolic murmur. he did not showed any other symptoms or signs. Cardiac catheterization with angiography showed interruption of the aortic arch with many systemic arterial collaterals and patent ductus arteriosus.
Angiography
;
Aorta*
;
Aorta, Thoracic
;
Cardiac Catheterization
;
Cardiac Catheters
;
Ductus Arteriosus, Patent*
;
Humans
;
Mortality
;
Systolic Murmurs
;
Young Adult
10.A Case of Signet-ring Cell Gastric Carcinoma of which the First Symptom was Skin Lesions.
Bo Joong KIM ; Eun Kyung JEON ; Young June SEO ; Jeung Hoon LEE ; Jang Kyu PARK
Korean Journal of Dermatology 2006;44(12):1426-1429
Cutaneous metastases of internal malignancies are rare and the incidence of metastatic skin lesions as the first symptom of disease is only 0.8% in patients of all malignancies. Furthermore, cutaneous metastasis from adenocarcinoma of the stomach has been found to be exceedingly rare. A 39-year-old woman presented with multiple, asymptomatic, erythematous nodules on her scalp and back. A biopsy taken from the nodule showed a signet ring cell type of adenocarcinoma. A gastroendoscopic examination and biopsy was done and showed the same histologic findings. The diagnosis of cutaneous metastasis of signet-ring cell gastric carcinoma was made. It is clinically worth reporting that the first symptom was skin lesions of the scalp and back.
Adenocarcinoma
;
Adult
;
Biopsy
;
Diagnosis
;
Female
;
Humans
;
Incidence
;
Neoplasm Metastasis
;
Scalp
;
Skin*
;
Stomach