1.A Study on the Changes in the Lumbar Lordosis, Lumbosacral and Sacral Inclination Angle during Aging.
Chang Seok OH ; Tae Sung KIM ; Myong Ho SON ; Baik Yoon KIM
Korean Journal of Physical Anthropology 1995;8(1):1-7
Three parameters (lumbar lordosis, lumbosacral and sacral inclination angle) were measured on 512 normal plain lateral radiographs of lumbosacral spine and the patterns of change during aging were studied. The following results were obtained. 1. The lumbar lordosis angle showed a tendency to increase with age. But a brief decrease was observed after the 6th decade in both sexes, between the 2(nd) and 3(rd) decades in males, and between the 3(rd) and 4(th) decades in females. The lumbar spines of females were generally more lordotic than those of males. 2. The lumbosacral angle appeared to increase with age. The angle in males showed a decline between the 2nd and 4th decades while the angle in females decreased after the 6th decade. Males usually had greater angles than females. 3. The sacral inclination angle continued to increase until the 6th decade, after which a decrease was noted. The angle in females was generally greater than that in males. These results showed that all three angles varied with age, and the pattern of change differed between male and female.
Aging*
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Animals
;
Female
;
Humans
;
Lordosis*
;
Male
;
Spine
5.Effects of Vecuronium and Pancuronium on the Tension of the Smooth Muscle in the Rat Trachea.
Sang Soo KIM ; Yoon Suk SON ; Yoon Hee KIM ; Seok Hwa YOON ; Jung Un LEE ; Hae Ja KIM
Korean Journal of Anesthesiology 1999;37(1):139-143
BACKGROUND: Vecuronium and Pancuronium have been proven to be associated with nicotinic receptor of skeletal muscle. Generally, nondepolarizing muscle relaxant is associated with contraction of smooth tracheal muscle, but there have been few studies about effects of nondepolarizing muscle relaxant on the smooth tracheal muscle. METHODS: We studied the acetylcholine dose response curve of the tracheal smooth muscle contraction and effects of propranolol, L-NAME after pretreating with vecuronium and pancuronium. RESULTS: Vecuronium shifted the acetylcholine dose-response curve of the tracheal contraction to the left, and pancuronium shifted the curve to the right. Vecuronium and Pancuronium reduced the contraction of smooth tracheal muscle with the use carbachol. Propranolol and L-NAME had no effect on the contraction of smooth tracheal muscle after pretreating with vecuronium and pancuronium. CONCLUSION: We suggest that vecuronium has an anticholinergic effect, while pancuronium has some effect on the muscarinic receptor in addition to its anticholinergic effect.
Acetylcholine
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Animals
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Carbachol
;
Muscle, Skeletal
;
Muscle, Smooth*
;
NG-Nitroarginine Methyl Ester
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Pancuronium*
;
Propranolol
;
Rats*
;
Receptors, Muscarinic
;
Receptors, Nicotinic
;
Trachea*
;
Vecuronium Bromide*
6.Usefulness of Cepstral Peak Prominence (CPP) in Unilateral Vocal Fold Paralysis Dysphonia Evaluation.
Chang Yoon LEE ; Hee Seok JEONG ; Hee Young SON
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2017;28(2):84-88
BACKGROUND AND OBJECTIVES: The purpose of this study was to compare the usefulness of Cepstral peak prominence (CPP) with parameter of Multiple Dimensional Voice Program (MDVP) in evaluating unilateral vocal fold paraylsis patients with subjective voice impairment. MATERIALS AND METHODS: From July 2014 to August 2016, 37 patients with unilateral vocal fold paralysis who had been diagnosed with unilateral vocal fold paralysis and had received two or more voice tests before and after the diagnosis were evaluated for maximum phonation time (MPT), MDVP and CPP. Respectively. Voice tests were performed with short vowel /a/ and paragraph reading. RESULTS: The CPP-a (CPP with vowel /a/) and CPP-s (CPP with paragraph reading) of the Cepstrum were statistically negatively correlated with G, R, B, and A before the voice therapy. Jitter, Shimmer, and NHR of MDVP were positively correlated with G, R, B. Jitter, Shimmer, and NHR of the MDVP were significantly correlated with the Cepstrum index. G, B, A and CPP-a and CPP-s showed a statistically significant negative correlation and a somewhat higher correlation coefficient between 0.5 and 0.78. On the other hand, in MDVP index, there was a positive correlation with G and B only with Jitter of 0.4. CONCLUSION: CPP can be an important evaluation tool in the evaluation of speech in the unilateral vocal cord paralysis when speech energy changes or the cycle is not constant during speech.
Diagnosis
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Dysphonia*
;
Hand
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Humans
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Paralysis*
;
Phonation
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Vocal Cord Paralysis
;
Vocal Cords*
;
Voice
7.Cardiovascular Effects of Isoflurane in Korean Dogs .
Seok Hwa YOON ; Soo Chang SON ; Jung Eun LEE ; Se Jin CHOI
Korean Journal of Anesthesiology 1991;24(3):635-641
7 Korean dogs were anesthetized with oxygen and isoflurane in different concentrations (1 vo1.%, 2 vo1.%, 3 vo1.%). Cardiovascular effects of isoflurane in different concentrations were investigated. The results were as follow: 1) Heart rate was decreased significantly (p<0.05) following increase of isoflurane concentrations. 2) Mean arterial blood pressure was decreased significantly (p<0.05) following increase of isoflur- ane concentrations. 3) Cardiac index was decreased significantly (p<0.05) following increase of isoflurane concentra- tions. 4) Left ventricular stroke work index was decreased significantly (p<0.05) following increase of isoflurane concentrations. 5) Pumonary artery pressure and pumonary artery wedge pressure were decreased significantly (p<0.05) following increase of isoflurane, but there were no significant changes in central venous pressure, systemic vascular resistance and pulmonary vascular resistance.
Animals
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Arterial Pressure
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Arteries
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Central Venous Pressure
;
Dogs*
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Heart Rate
;
Isoflurane*
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Oxygen
;
Pulmonary Wedge Pressure
;
Stroke
;
Vascular Resistance
9.Aerodynamic Evaluation of Voice Changes in Thyroid Surgery Extent
Hee Seok JEONG ; Joong Sun KIM ; Chang Yoon LEE ; Hee Young SON
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2018;29(1):24-29
BACKGROUND AND OBJECTIVES: The purpose of this study was to evaluate the impact of surgical extent on voice using acoustic and aerodynamic measurements in a serially followed thyroidectomy patients. MATERIALS AND METHOD: From October 2015 to January 2017, 108 patients who had undergone thyroid surgery and voice test for preoperative, 2, 3, and 6 months postoperatively were classified into five operative types. The radiological stage preoperatively and histopathological stage postoperatively were classified according to the invasion of thyroid capsule and surrounding tissue. For each classification, the results of the voice analysis according to the period were compared and analyzed. RESULTS: The difference of voice according to surgical extent, radiological stage, and histopathologic stage showed significant difference only with Maximal phonation time (MPT) over time. However, in the analysis of interaction between each classification and period, Phonation threshold pressure (PTP) only showed significant results. CONCLUSION: Differences in imaging and histopathologic stages have no significant effect on recovery of voice symptoms after thyroid surgery. As the extent of operation increases, the pressure to start vocalization is relatively higher, which also varies with time after surgery.
Acoustics
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Classification
;
Humans
;
Methods
;
Phonation
;
Thyroid Gland
;
Thyroidectomy
;
Voice Quality
;
Voice
10.Mortality Study of Intertrochanteric Fractures of the Femur in the Elderly Patients
Keun Woo KIM ; Yong Hoon KIM ; Hak Jin MIN ; Ui Seoung YOON ; Woong Je CHO ; Dong Seok SON
The Journal of the Korean Orthopaedic Association 1996;31(1):119-123
Intertrochanteric fractures are common in older age group. Recently better implant design and surgical technique have improved clinical results. But still many patients suffer from high morbidity and mortality, because of accompanying osteoporosis and various senile diseases. From January 1991 to June 1994, we treated 54 patients older than 70 years with intertrochanteric fractures of femur. Among them, 23 patients were followed up at our hospital and the other patients were informed from police station. Lost follow up was ten patients and final follow up were 44 patients. Mortality was analyzed for the detection of causative factors, such as age, sex, associated medical problems. type of fracture, degree of osteoporosis, type of operation, internal between injury and operation and duration of admission. The results were as follows; 1. 26 patients survived and 18 patients died(Mortality rate :40.9%) 2. 10 patients died within 1 year(Mortality rate :22.7%) 3. Mortality was related to associated medical problems, interval between in jury and operation and type of fracture, which were statistically significant(P < 0.05).
Aged
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Femur
;
Follow-Up Studies
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Hip Fractures
;
Humans
;
Mortality
;
Osteoporosis
;
Police