1
|
Wu H, Li YL, Maimaitili M, Chen LX, Mamutijiang M, Bate G, Shen YS, Lyu MY, Zhu GH. [Assessment of computed tomographic angiographysinus development combined with occipitalbone marks for the location of transverse sigmoid sinus junction]. Zhonghua Yi Xue Za Zhi 2020; 100:2618-2621. [PMID: 32892609 DOI: 10.3760/cma.j.cn112137-20191210-02695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To introduce and evaluate a technique to precisely localize the transverse-sigmoid sinus junction (TSSJ) in retrosigmoid craniotomy. Methods: This was a single-center prospective randomized controlled study. Sixty-three patients, 29 male and 34 female, who would undergo retrosigmoid craniotomy admitted to Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical Universityfrom March to October 2019 were enrolled in the study and were divided into trial group and control group according to the computer-generated random numbers. Preoperative venous computed tomographic angiography (CTA) combined with 3-dimensional computed tomography computed tomography (3D CT) was randomly given to the patients(n=32). Asterion was used for identification of the TSSJ in the controls (n=31). The main outcome measures as postoperative complications and relevant intraoperative indicators were compared. Results: Incision length, craniotomy time, bone window sizein trial group were shorter or smaller than those of the controls, as(6.8±0.5) cm vs (8.0±1.5) cm, (37±8) min vs (45±15) min, (8.7±1.2) cm(2) vs (10.2±2.4) cm(2) respectively, with statistical significance (all P<0.05). No statistical significance was found in bleeding amount, incidence of sinus injury and cerebrospinal fluid leakage. While incidence of neck pain was lower in case group (15.63% vs 38.71%; P=0.04) and the remission time of incisional pain in case group was shorter [(6±1) d vs (9±2) d; P=0.01]. Conclusion: While the technique is used, the center of the keyhole should be located at transitional place of the lateral part of the occipitomastoid suture, the retromastoid ridge and the superior nuchal line. Compared with the traditional craniotomy method marked by asterion, it has great advantages in reducing incidence of postoperative complications, craniotomy time, and the remission time of incisional pain.
Collapse
Affiliation(s)
- H Wu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Y L Li
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Mijiti Maimaitili
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - L X Chen
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Muertizha Mamutijiang
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Gonggaoang Bate
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Y S Shen
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - M Y Lyu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - G H Zhu
- Department of Neurosurgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| |
Collapse
|
2
|
Lei YY, Shen YS, Wang YH, Zhao H. Regression Algorithm of Bone Age Estimation of Knee-joint Based on Principal Component Analysis and Support Vector Machine. Fa Yi Xue Za Zhi 2019; 35:194-199. [PMID: 31135114 DOI: 10.12116/j.issn.1004-5619.2019.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To establish a regression algorithm model that applies to bone age estimation of Xinjiang Uygur adolescents with machine learning methods such as histogram of oriented gradient (HOG), local binary patterns (LBP), support vector machine (SVM), principal component analysis (PCA). Methods DR images of knee-joints from 275 male and 225 female subjects aged 12.0-<19.0 years old were collected, PCA method was used to reduce the dimensionality of the HOG and LBP features, and support vector regression (SVR) was used to establish a knee-joint bone age estimation algorithm model. Stratified random sampling method was used to select 215 male samples, 180 female samples for the model training set. K-fold cross validation method was used to optimize parameters of the model. The remaining samples as the independent test set was used to compare the sample's true age and model estimated age, and had an accuracy rate in the statistical error range of ±0.8 and ±1.0 years, respectively. Then the mean absolute error (MAE) and root mean square error (RMSE) were calculated. Results The accuracy rate of male in the statistical error range of ±0.8 and ±1.0 year was 80.67%, 89.33%, respectively. The MAE and RMSE were 0.486 and 0.606 years, respectively. The accuracy rate of female in the statistical error range of ±0.8 and ±1.0 years was 80.19%, 90.45%, respectively. The MAE and RMSE were 0.485 and 0.590 years, respectively. Conclusion Establishment of prediction model for bone age estimation by feature dimension reduction of HOG and LBP in DR images of knee-joint based on PCA and SVM has relatively high accuracy.
Collapse
Affiliation(s)
- Y Y Lei
- Department of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Y S Shen
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H Zhao
- Department of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| |
Collapse
|
3
|
Tai HCH, Yao CT, Chen WL, Chen JH, Shen YS. Necrotizing fasciitis as an initial manifestation of perforated rectal cancer in a young man. J Acute Med 2012. [DOI: 10.1016/j.jacme.2012.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
4
|
Shen YS, Chen WL, Chang HY, Kuo HY, Chang YC, Chu H. Diagnostic performance of initial salivary alpha-amylase activity for acute myocardial infarction in patients with acute chest pain. J Emerg Med 2011; 43:553-60. [PMID: 22056109 DOI: 10.1016/j.jemermed.2011.06.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 04/25/2011] [Accepted: 06/05/2011] [Indexed: 11/16/2022]
Abstract
BACKGROUND To rule out acute myocardial infarction (AMI) in chest pain patients constitutes a diagnostic challenge to emergency department (ED) physicians. STUDY OBJECTIVES To evaluate the diagnostic value of measuring salivary alpha-amylase (sAA) activity for detecting AMI in patients presenting to the ED with acute chest pain. METHODS sAA activity was measured in a prospective cohort of 473 consecutive adult patients within 4 h of onset of chest pain. Comparisons were made between patients with a final diagnosis of AMI and those with non-AMI. Univariate analysis and multiple logistic regression model were used to identify independent clinical predictors of AMI. RESULTS Initial sAA activity in the AMI group (n = 85; 266 ± 127.6 U/mL) was significantly higher than in the non-AMI group (n = 388; 130 ± 92.8 U/mL, p < 0.001). sAA activity levels were also significantly higher in patients with ST elevation AMI (n = 53) compared to in those with non-ST elevation AMI (n = 32) (300 ± 141.1 vs. 210 ± 74.1 U/mL, p < 0.001). The area under the receiver operating characteristic curve of sAA activity for predicting AMI in patients with acute chest pain was 0.826 (95% confidence interval [CI] 0.782-0.869), with diagnostic odds ratio 10.87 (95% CI 6.16-19.18). With a best cutoff value of 197.7 U/mL, the sAA activity revealed moderate sensitivity and specificity as an independent predictor of AMI (78.8% and 74.5%). CONCLUSIONS High initial sAA activity is an independent predictor of AMI in patients presenting to the ED with chest pain.
Collapse
Affiliation(s)
- Ying-Sheng Shen
- Institute of Aerospace Medicine, School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | | | | | | | | | | |
Collapse
|
5
|
Zatryb G, Podhorodecki A, Hao XJ, Misiewicz J, Shen YS, Green MA. Correlation between stress and carrier nonradiative recombination for silicon nanocrystals in an oxide matrix. Nanotechnology 2011; 22:335703. [PMID: 21778570 DOI: 10.1088/0957-4484/22/33/335703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Silicon nanocrystals embedded in an oxide matrix formed in a multilayer architecture were deposited by the magnetron sputtering method. By means of Raman spectroscopy we have found that compressive stress is exerted on the silicon nanocrystal core. The stress varies as a function of silicon concentration (O/Si ratio) in the silicon-rich oxide (SRO) layers, which can be attributed to the changing nanocrystal environment. By conducting the time-resolved spectroscopy experiment, we demonstrate that, depending on the nanocrystal surroundings, a different amount of nonradiative recombination sites participates in the excited carrier relaxation process, leading to changes of the relative quantum yield of photoluminescence.
Collapse
Affiliation(s)
- G Zatryb
- Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | | | | | | | | | | |
Collapse
|
6
|
Shen YS, Chan CM, Chen WL, Chen JH, Chang HY, Chu H. Initial salivary α-amylase activity predicts malignant ventricular arrhythmias and short-term prognosis after ST-segment elevation myocardial infarction. Emerg Med J 2011; 28:1041-5. [PMID: 21355069 DOI: 10.1136/emj.2010.102541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Ventricular arrhythmias (VA), including ventricular tachycardia and ventricular fibrillation, are the most common remediable cause of death in patients with acute myocardial infarction. Augmented sympathetic neural activity to the heart and myocardial catecholamine release may be the primary factors in the generation of VA. The aim of this study was to assess the predictive value of salivary α-amylase (sAA) activity, an indicator of sympathetic activity, for malignant VA occurrence and for short-term outcome in patients with ST-segment elevation myocardial infarction (STEMI). METHODS Patients with STEMI (n=91) were recruited from the Emergency Department during the period 1 December 2008 to 31 April 2010. Correlations of initial sAA activity at presentation with VA, as well as 1-month prognosis were analysed. RESULTS sAA activity was significantly increased in the VA group (395±173.7; n=9) as compared with the non-VA group (283±89.3; n=82) (p=0.014). The adjusted OR for malignant ventricular arrhythmia occurrence was 1.010 (95% CI 1.001 to 1.018). Eight patients (8.8%) died and 24 (26.4%) had at least one short-term adverse event within the first month after STEMI. Simple logistic regression analysis showed that sAA is an independent predictor for short-term prognosis (p=0.049, OR 1.005, 95% CI 1.000 to 1.009). CONCLUSIONS Although a prospective study with a large cohort is required, the present results suggest that high initial sAA activity is associated with increased risk of malignant VA and predicts short-term prognosis in patients with STEMI.
Collapse
Affiliation(s)
- Ying-Sheng Shen
- Department of Emergency Medicine, Cathay General Hospital, Taipei, Taiwan
| | | | | | | | | | | |
Collapse
|
7
|
Chen WL, Shen YS, Huang CC, Chen JH, Kuo CD. Postresuscitation autonomic nervous modulation after cardiac arrest resembles that of severe sepsis. Am J Emerg Med 2011; 30:143-50. [PMID: 21208768 DOI: 10.1016/j.ajem.2010.11.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2010] [Revised: 10/27/2010] [Accepted: 11/12/2010] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION This study explored whether post-resuscitation status resembles severe sepsis in terms of autonomic nervous modulation by using heart rate variability (HRV) analysis. METHODS Successfully resuscitated nontraumatic out-of-hospital cardiac arrest (OHCA) adult patients in an emergency department were prospectively enrolled as the study group. Age- and sex-matched patients with severe sepsis with and without mechanical ventilation were included as positive controls, while sepsis patients and healthy volunteers were included as negative controls. The HRV measures obtained from 10-minute electrocardiogram were compared among 5 groups of subjects. RESULTS Sixty-four successfully resuscitated OHCA patients were studied. There were no significant differences in all HRV measures (standard deviation of R-R intervals [SD(RR)], coefficient of variation of R-R intervals [CV(RR)], total power [TP], very-low-frequency component [VLF], low-frequency component [LF], high-frequency component [HF], normalized LF [LF%], normalized HF [HF%], and LF/HF) among the successfully resuscitated OHCA patients and severe sepsis patients with and without mechanical ventilation. Also, no significant differences in all HRV measures were found between nonsurvivors of OHCA group and nonsurvivors of severe sepsis group. In the nonsurvivors of OHCA group and severe sepsis group, the LF% and LF/HF were significantly lower, whereas the HF and HF% were significantly higher, as compared with the survivors of these 2 groups. CONCLUSIONS The autonomic nervous modulation in the initial phase of OHCA patients resembles that of severe sepsis in that both groups of patients have decreased global HRV (TP, SD(RR), and CV(RR)), sympathovagal balance (LF% and LF/HF), and renin-angiotensin-aldosterone modulation (VLF), as compared to healthy subjects.
Collapse
Affiliation(s)
- Wei-Lung Chen
- Department of Emergency Medicine, Cathay General Hospital, Taipei 106, Taiwan
| | | | | | | | | |
Collapse
|
8
|
Zatryb G, Podhorodecki A, Hao XJ, Misiewicz J, Shen YS, Green MA. Quantitative evaluation of boron-induced disorder in multilayers containing silicon nanocrystals in an oxide matrix designed for photovoltaic applications. Opt Express 2010; 18:22004-9. [PMID: 20941101 DOI: 10.1364/oe.18.022004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The effect of doping by boron on optical properties of multilayers containing Si-NCs were studied by means of photoluminescence (PL), time-resolved PL, photoluminescence excitation (PLE), transmission and reflection measurements. It was found that PL decay is strongly non-single exponential and can be described by means of Laplace transform of log-normal decay rates distribution. It was also proposed that changes observed in the distribution central moments reflect the disorder induced by boron-doping.
Collapse
Affiliation(s)
- G Zatryb
- Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | | | | | | | | | | |
Collapse
|
9
|
Chu H, Chen WL, Huang CC, Chang HY, Kuo HY, Gau CM, Chang YC, Shen YS. Diagnostic performance of mean platelet volume for patients with acute coronary syndrome visiting an emergency department with acute chest pain: the Chinese scenario. Emerg Med J 2010; 28:569-74. [PMID: 20650916 DOI: 10.1136/emj.2010.093096] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To assess the ability of mean platelet volume (MPV) to detect acute coronary syndromes (ACS) in Chinese patients within 4 h of chest pain onset. METHODS Consecutive adult Chinese patients who arrived at an emergency department (ED) with acute chest pain (onset within 4 h) between May and August 2009 were recruited. The MPV was checked for all enrolled patients on arrival at the ED, and further comparisons between the patients in different groups were made. RESULTS 282 patients (136 men and 146 women) were enrolled and 69 were diagnosed as having ACS (24.5%). As compared with the non-ACS group, the ACS group had significantly higher MPV values (10.8±0.86 fl vs 9.8±0.76 fl, p<0.001). Moreover, we found that the MPV values were higher in patients with acute myocardial infarction (AMI) (n=28) as compared with patients with unstable angina (UA) (n=41) (11.0±0.79 fl vs 10.6±0.87 fl, p=0.027). Multiple logistic regression analysis yielded the fact that the initial MPV was an independent predictor of ACS attack in patients with acute chest pain (OR 8.866). The corresponding area under the receiver operating characteristic curve (ROC) for MPV in predicting ACS in patients with acute chest pain was 0.800 (95% CI 0.736 to 0.864) and the best cut-off value was 10.35 fl (sensitivity 78.3%; specificity 74.6%). CONCLUSIONS MPV is significantly associated with ACS in patients with acute chest pain and is an early and independent predictor.
Collapse
Affiliation(s)
- Hsin Chu
- Institute of Aerospace Medicine, School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Shen YS, Chen WL, Chen JH, Wu YL, Kuo HY. Painless acute aortic dissection presenting as intermittent syncope. Am J Emerg Med 2010; 28:535.e5-6. [DOI: 10.1016/j.ajem.2009.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 04/16/2009] [Indexed: 10/19/2022] Open
|
11
|
Hao XJ, Podhorodecki AP, Shen YS, Zatryb G, Misiewicz J, Green MA. Effects of Si-rich oxide layer stoichiometry on the structural and optical properties of Si QD/SiO2 multilayer films. Nanotechnology 2009; 20:485703. [PMID: 19887709 DOI: 10.1088/0957-4484/20/48/485703] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The effects of the stoichiometry of the Si-rich oxide (SRO) layer, O/Si ratio, on the structural and optical properties of SRO/SiO2 multilayer films were investigated in this work. SRO/SiO2 multilayer films with different O/Si ratios were grown by a co-sputtering technique, and Si quantum dots (QDs) were formed with post-deposition annealing. By transmission electron microscopy (TEM) and glancing incidence x-ray diffraction (GIXRD), it was found that the Si QD size decreases with increases in O/Si ratio. The photoluminescence (PL) spectrum varies with the O/Si ratio in band position, shape and intensity. In addition, it was observed that the absorption edge blue-shifts with increases in the O/Si ratio. The change in the absorption edge is consistent with strengthening quantum confinement effects in Si QDs, as indicated by TEM and GIXRD. The optical properties were also investigated by 2D photoluminescence excitation (2D-PLE) and lifetime measurements. The origin of emission and absorption is discussed based on the absorption, PL, 2D-PLE and decay time measurements.
Collapse
Affiliation(s)
- X J Hao
- ARC Photovoltaics Centre of Excellence, University of New South Wales, Sydney, New South Wales 2052, Australia.
| | | | | | | | | | | |
Collapse
|
12
|
Hao XJ, Cho EC, Flynn C, Shen YS, Conibeer G, Green MA. Effects of boron doping on the structural and optical properties of silicon nanocrystals in a silicon dioxide matrix. Nanotechnology 2008; 19:424019. [PMID: 21832679 DOI: 10.1088/0957-4484/19/42/424019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Doping of Si nanocrystals is an important topic in the emerging field of Si nanocrystals based all-Si tandem solar cells. Boron-doped Si nanocrystals embedded in a silicon dioxide matrix were realized by a co-sputtering process, followed by high temperature annealing. The x-ray photoelectron spectroscopy B 1s signal attributable to Si-B (187 eV) and/or B-B (188 eV) indicates that the boron may exist inside Si nanocrystals. A higher probability of effective boron doping was suggested for Si-rich oxide films with a low oxygen content, Then, structural and optical properties were characterized with a focus on the effects of the boron content on Si quantum dots. The results show that as the boron content increases, the nanocrystal size is slightly reduced and the Si crystallization is suppressed. The photoluminescence intensity of the films is decreased as the boron content increases. This is due to boron-induced defects and/or Auger processes induced by effective doping. These results can provide optimal conditions for future Si quantum dot based solar cells.
Collapse
Affiliation(s)
- X J Hao
- ARC Photovoltaics Centre of Excellence, University of New South Wales, Sydney, New South Wales 2052, Australia
| | | | | | | | | | | |
Collapse
|
13
|
Shen YS, Tai CH, Chen JH, Chen WL, Yao CT, Wu YL, Kuo HY. Aneurysmal rebleeding episode after lumbar puncture. Am J Emerg Med 2007; 25:984.e1-3. [PMID: 17920990 DOI: 10.1016/j.ajem.2007.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Accepted: 02/07/2007] [Indexed: 10/22/2022] Open
Affiliation(s)
- Ying-Sheng Shen
- Department of Emergency Medicine, Cathay General Hospital, Taipei, Taiwan, Republic of China
| | | | | | | | | | | | | |
Collapse
|
14
|
Abstract
It is known that toad possesses several toxic substances in the skin and parotid glands. In the past, toad-venom poisoning had been reported from ingestion of toad soup, Kyushin and aphrodisiac pills, but the poisoning from toad eggs is observed for the first time. The case of a healthy female who had previously eaten toad soup twice without any discomfort is reported. She developed gastrointestinal symptoms and life-threatening cardiac rhythm after ingestion of toad eggs.
Collapse
Affiliation(s)
- Hung-Yi Kuo
- Department of Emergency Medicine, Cathay General Hospital, 280 Sec 4, Jen-Ai Rd, Taipei, Taiwan, Republic of China
| | | | | | | | | |
Collapse
|
15
|
Hsu CW, Chen HH, Sheu WHH, Chu SJ, Shen YS, Wu CP, Chien KL. Initial Serum Glucose Level as a Prognostic Factor in the First Acute Myocardial Infarction. Ann Emerg Med 2007; 49:618-26. [PMID: 17178170 DOI: 10.1016/j.annemergmed.2006.10.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Revised: 10/09/2006] [Accepted: 10/23/2006] [Indexed: 01/08/2023]
Abstract
STUDY OBJECTIVE We assess the prognostic role of initial glucose levels in patients with a first acute myocardial infarction in the emergency department (ED). METHODS We conducted a 3-year retrospective cohort study. Patients with a first acute myocardial infarction were recruited from the ED of a tertiary hospital from January 1, 2001, to December 31, 2003. Initial glucose levels in the ED were stratified into 3 levels (normal < 140 mg/dL; intermediate 140 to 200 mg/dL; and high > or = 200 mg/dL). Logistic and Cox regression models were applied to estimate the 1-month short-term and 1-year long-term adverse prognoses, respectively. RESULTS A total of 198 eligible subjects (159 men and 39 women; mean age 63.1+/-14.2 years) were recruited. The estimated survival curves among the 3 initial glucose levels were significantly different (P=.0002). After adjustment for sex, age, diabetic status, reperfusion therapy, and infarct subtype, the adjusted odds ratio for short-term prognosis progressed with higher levels when compared with the normal level (intermediate level: odds ratio 3.87; 95% confidence interval [CI] 1.71 to 8.78; high level: odds ratio 5.16; 95% CI 1.97 to 13.51). High initial glucose level was an important risk factor for long-term adverse prognosis (hazard ratio 3.08; 95% CI 1.59 to 5.98). CONCLUSION A high initial glucose level in the ED is an important and independent predictor of short- and long-term adverse prognoses in patients with first acute myocardial infarction.
Collapse
Affiliation(s)
- Chin-Wang Hsu
- Department of Emergency Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | | | | | | | | | | | | |
Collapse
|
16
|
Shen YS, Liao BH. Study on the treatment of Acid Red 4 wastewaters by a laminar-falling-film-slurry-type VUV photolytic process. Water Sci Technol 2007; 55:13-8. [PMID: 17674821 DOI: 10.2166/wst.2007.380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The purpose of this study is to develop the design equation of a laminar-falling-film-slurry-type (LFFS) photoreactor for the treatment of organic wastewaters (Acid Red 4) by 185 nm vacuum ultra-violet (VUV) related processes. The LFFS photoreactor is one of the most efficient reactor configurations for conducting heterogeneous photocatalytic reactions, particularly for wastewater treatment. The decomposition of Acid Red 4 dye wastewaters by VUV-based photo-oxidation process was studied under various UV light intensities, dosages of H2O2 and TiO2. By the treatment of the LFFS-VUV only process, it was found that the decomposition rates of the dye in aqueous solutions increased with the increasing of VUV light intensity, dosage of TiO2, dosage of H2O2. The apparent potential of OH. generation from the photolysis of used oxidants (i.e. OH. sources, H2O, H2O2, TiO2) to decompose the targeted dye wastewater was investigated and compared.
Collapse
Affiliation(s)
- Y S Shen
- Department of Environmental Engineering, Da-Yeh University, 112 Shan-Jeau Rd., Chang-Hwa, 515, Chinese Taiwan.
| | | |
Collapse
|
17
|
Kuo HY, Lu CH, Shen YS, Lee SH, Ho ST, Wong CS, Liaw WJ. Fatal hemoptysis after suction through endotracheal tube in a patient with pneumoconiosis--a case report. Acta Anaesthesiol Taiwan 2004; 42:107-10. [PMID: 15346707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
A 76-year-old man, with a history of pneumoconiosis, developed massive hemoptysis after suction through endotracheal tube. Emergent bronchial artery angiography revealed that rupture of an aneurysm was the suspected culprit and coil embolization was performed. However, the bleeding persisted and he eventually succumbed. Here we bring forward the clinical evaluation and management of massive hemoptysis for discussion. It is note worthy that in patients with chronic inflammatory lung diseases, such as pneumoconiosis, massive hemoptysis may develop in the act of trachcobronchial toilet with suction.
Collapse
Affiliation(s)
- Hung-Yi Kuo
- Department of Anesthesiology, Tri-Service General Hospital, R.O.C
| | | | | | | | | | | | | |
Collapse
|
18
|
Abstract
The decomposition of gas-phase trichloroethene (TCE) in air streams by direct photolysis, the UV/TiO2 and UV/O3 processes was studied. The experiments were carried out under various UV light intensities and wavelengths, ozone dosages, and initial concentrations of TCE to investigate and compare the removal efficiency of the pollutant. For UV/TiO2 process, the individual contribution to the decomposition of TCE by direct photolysis and hydroxyl radicals destruction was differentiated to discuss the quantum efficiency with 254 and 365 nm UV lamps. The removal of gaseous TCE was found to reduce by UV/TiO2 process in the presence of ozone possibly because of the ozone molecules could scavenge hydroxyl radicals produced from the excitation of TiO2 by UV radiation to inhibit the decomposition of TCE. A photoreactor design equation for the decomposition of gaseous TCE by the UV/TiO2 process in air streams was developed by combining the continuity equation of the pollutant and the surface catalysis reaction rate expression. By the proposed design scheme, the temporal distribution of TCE at various operation conditions by the UV/TiO2 process can be well modeled.
Collapse
Affiliation(s)
- Y S Shen
- Department of Environmental Engineering, Da-Yeh University, Chang-Hwa, Taiwan, ROC.
| | | |
Collapse
|
19
|
Zhao CY, Shen YS, Meng H. [Study on effect of jinshui liujun jian oral liquid on serum superoxide dismutase activity and malonyldialdehyde content in mice with chronic bronchitis]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:843-4. [PMID: 12575381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the effect of Jinshui Liujun Jian Oral Liquid (JLJOL) on serum superoxide dismutase (SOD) activity and malonyldialdehyde (MDA) content in mice with chronic bronchitis. METHODS JLJOL was given to the chronic bronchitis mice model (induced by smoking) through gastrogavage, and then SOD activity and MDA content were tested. RESULTS SOD activity in model mice after JLJOL treatment was 0.67 +/- 0.15 NU/L, which was significantly higher than that in the untreated model (0.39 +/- 0.13 NU/L, P < 0.01). But the MDA content in treated mice was significantly lower than that in untreated one (9.26 +/- 2.90 nmol/L vs 16.07 +/- 5.62 nmol/L, P < 0.01). CONCLUSION JLJOL could scavenge the injury of free radical on organism.
Collapse
Affiliation(s)
- C Y Zhao
- First Affiliated Hospital of Medical School, Jinan University, Guangzhou 510630
| | | | | |
Collapse
|
20
|
Shen YS, Liu J, Zhao CY. [Influence of yangwei mixture scathe caused by free radical after radiotherapy on mice]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:767. [PMID: 12575613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
|
21
|
Abstract
STUDY DESIGN A prospective clinical trial was conducted. OBJECTIVE To compare the results of nonoperative treatment versus short-segment posterior fixation using pedicle screws. SUMMARY OF BACKGROUND DATA A previous study showed that nonoperative treatment with early mobilization produced good results, even when the posterior column was involved. METHODS This study involved 80 patients. Inclusion criteria required the following: neurologically intact patient, single-level closed burst fracture involving T11-L2, no fracture dislocations or pedicle fractures, age of 18 to 65 years (nonpathologic adult), and no other major organ system or musculoskeletal injuries. Patients in the nonoperative group (n = 47) were allowed activity to the point of pain tolerance beginning on the day of injury using a hyperextension brace. Patients in the operative group (n = 33) underwent three-level, (one above, one at fracture level, and one below) fixation using VSP or TSRH instrumentation. The follow-up period was 2 years. RESULTS The surgical group had less pain up to 3 months and a better Greenough Low Back Outcome Score up to 6 months, but the outcome was similar afterward. No neurologic deficit in any patient. In the nonoperative group, the kyphosis angle worsened by 4 degrees, and the retropulsion decreased from 34% to 15%. In the operative group, there was one case of superficial infection and two cases of broken screws. The kyphosis angle was improved initially by 17 degrees, but this was gradually lost. Hospital charges were four times higher in the operative group. CONCLUSIONS Short-segment posterior fixation provides partial kyphosis correction and earlier pain relief, but the functional outcome at 2 years is similar. Early activity to the point of pain tolerance can be safely allowed.
Collapse
Affiliation(s)
- W J Shen
- Po-Cheng Orthopaedic Institute, Kaohsiung, Taiwan.
| | | | | |
Collapse
|
22
|
Abstract
The decomposition of monocrotophos (cis-3-dimethoxyphosphinyloxy-N-methyl-crotonamide) in aqueous solution by UV and UV/O(3) processes was studied. The experiments were carried out under various solution pH values to investigate the decomposition efficiencies of the reactant and organic intermediates in order to determine the completeness of decomposition. The photolytic decomposition rate of monocrotophos was increased with increasing solution pH because the solution pH affects the distribution and light absorbance of monocrotophos species. The combination of O(3) with UV light apparently promoted the decomposition and mineralization of monocrotophos in aqueous solution. For the UV/O(3) process, the breakage of the >C=C< bond of monocrotophos by ozone molecules was found to occur first, followed by mineralization by hydroxyl radicals to generate CO(3)(2-), PO4(3-), and NO(3)(-) anions in sequence. The quasi-global kinetics based on a simplified consecutive-parallel reaction scheme was developed to describe the temporal behavior of monocrotophos decomposition in aqueous solution by the UV/O(3) process.
Collapse
Affiliation(s)
- Y Ku
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
| | | | | |
Collapse
|
23
|
Abstract
From 1992-1994, we operated on 251 fresh completely displaced mid-third clavicle fractures in adults; 232 were followed up. The fractures were plated with a Mizuho C-type plate or an AO/ASIF 3.5 mm reconstruction plate. Comminuted fragments were reduced and wired (133 cases). There were 150 men and 82 women; the median age was 37.3 years (range 18-79). The mean follow-up was 4.4 years (range 3.0-5.9). The mean time to radiographic union was 10 weeks. Seven patients (3%) developed nonunion. Healing with angulation occurred in 14 patients. Deep infection developed in one patient, and superficial infection in four cases; 21 patients reported soreness with changes in the weather and activity; 28 patients had residual skin numbness caudal to the incision. No patient had shoulder droop, and none had impairment of range of motion or shoulder strength. None developed new or late neurovascular impairment; 171 patients eventually had the hardware removed at an average 401 days post operatively. Overall, 94% were satisfied with the procedure. For completely displaced clavicle fractures in adults, plating is a reliable procedure.
Collapse
Affiliation(s)
- W J Shen
- Po-Cheng Orthopaedic Institute, Kaohsiung, Taiwan.
| | | | | |
Collapse
|
24
|
Abstract
STUDY DESIGN Retrospective review of the outcome of neurologically intact patients with three column thoracolumbar junction burst fractures that were treated nonsurgically. OBJECTIVE To further define the parameters for nonsurgical management of thoracolumbar junction burst fractures. SUMMARY OF BACKGROUND DATA Many texts list involvement of the posterior column as an indication for surgery and state that casting or bracing is mandatory. This has not been the authors' experience. METHODS Thirty-eight patients with nonpathologic, single-level burst fractures of T11, T12, L1, or L2, and with posterior element fractures were studied retrospectively. The selection criteria required that the patient be neurologically intact, that the pedicles and facet joints not be fractured or dislocated, and that the angle of kyphosis be less than 35 degrees. The extent of retropulsion, loss of vertebral height, and presence of lamina or process fractures were not criteria. No attempt was made to reduce the fracture. Patients were allowed immediate ambulation as tolerated. Jewett braces were used in nine patients, but no bracing was used in the remainder. RESULTS There were 22 males, 16 females. Median age 37 years (range, 16-65). Fracture involved both endplates in 16 patients (12 crush-cleavage type), the superior end-plate in 21, and the inferior endplate in 1. The hospital stay was from 2 to 18 days (median, 8 days). Follow-up averaged 4.1 years (range, 2.1-6.3). All patients remained neurologically intact. Eight patients had no pain, 24 had minimal pain, 4 had moderate pain, and 2 had moderate to severe pain. Twenty-nine of 38 patients (76%) were able to work at the same level. The initial kyphosis angle averaged 20 degrees (range 10-35 degrees). At follow-up it averaged 24 degrees (range 12-38 degrees). The maximum increase was 6 degrees. Some degree of retropulsed fragment resorption was noted in 35 cases. Complications were limited to transient urinary retention. There were no thromboembolisms, decubitus ulcers, or pulmonary complications. CONCLUSION Despite the use of less restrictive criteria, no brace, and early activity as tolerated, the results are similar to those obtained with more restrictive protocols. The presence of vertical lamina fracture, spinous process fracture, and transverse process fracture are not contra--indications. Activity restriction and bracing may be important for pain control but probably does not change the long-term result.
Collapse
Affiliation(s)
- W J Shen
- Po-Cheng Orthopaedic Institute, Kaohsiung, Taiwan.
| | | |
Collapse
|
25
|
Huang MB, Sun J, Wang JS, Li GL, Qi HL, Wang JP, Shen YS. [Separation of pharmaceutical enantiomers on column and thin-layer plate of cellulose triacetate]. Yao Xue Xue Bao 1997; 32:612-6. [PMID: 11596312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Microcrystalline cellulose triacetate (CTA) was prepared by heterogeneous acetylation of microcrystalline cellulose and used as liquid chromatographic chiral stationary phase and chiral thin layer plate to separate pharmaceutical enantiomers. The racemic Troegor's base, mathaqualone, chlormezanone and chloroquine were separated on the CTA chiral column and on the CTA chiral plate. 95% ethanol and the mixtures of 95% ethanol and water with different ratio and different pH values were used as mobile phase. The influences of eluent composition, pH and temperature on the chiral separation were discussed. The experimental results indicate that the CTA chiral plate was more sensitive to eluent composition and pH than chiral column possibly because the chiral adsorbent was not swollen on the plate.
Collapse
Affiliation(s)
- M B Huang
- Department of Chemistry, Experimental Center, Shandong University, Jinan 250100
| | | | | | | | | | | | | |
Collapse
|
26
|
Zhao CY, Shen YS, Meng H. [Clinical and experimental study on jinshui liujun decoction in treating chronic bronchitis]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1997; 17:264-6. [PMID: 9863106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
OBJECTIVE To assess the effect of Jinshui Liujun decoction (JSL) in treating chronic bronchitis. METHODS The effect of JSL on expelling the phlegm and strengthening the body resistance were observed. RESULTS JSL was proved to be efficacious in improving immune function of the body and pulmonary ventilatory function (P < 0.01). JSL could not only increase the secretion of rats' trachea mucosa and dilute sputum, but also increase the motion speed of the pigeons' trachea cilia, thus facilitate the removal of sputum. Compared with the normal saline control group, both animal experiments displayed significant statistical difference (P < 0.01), but without significant difference when compared the JSL group with the positive drug Juhong Tanke Ye control group. CONCLUSION JSL has the effect of resolving phlegm as well as improving human immunological and pulmonary ventilatory functions.
Collapse
Affiliation(s)
- C Y Zhao
- Training Center of TCM and Acupuncture, Jinan University, GuangZhou
| | | | | |
Collapse
|
27
|
Liu GC, Chou MS, Tsai TC, Lin SY, Shen YS. MR evaluation of tuberculous spondylitis. Acta Radiol 1993; 34:554-8. [PMID: 8240887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A total of 29 proven tuberculous spondylitis patients underwent MR studies. Gd-DTPA enhancement was performed in 10 patients. Contiguous 2 vertebral involvement, subligamental spread of paraspinal abscesses and cord indentation were observed in 93% of the cases. Destruction of the vertebral body occurred in 76%. Intermediate or low T1 signal intensity and high T2 signal intensity were observed by MR. A combination of these characteristic findings strongly suggests the diagnosis of tuberculous spondylitis. Gd-DTPA administration did not facilitate diagnosis. MR examination should be considered as the main imaging modality for patients with suspected tuberculous spondylitis.
Collapse
Affiliation(s)
- G C Liu
- Department of Radiology, Kaohsiung Medical College, Taiwan, R.O.C
| | | | | | | | | |
Collapse
|
28
|
Shen WJ, Shen YS. Fibular nonunion after fixation of the tibia in lower leg fractures. Clin Orthop Relat Res 1993:231-2. [PMID: 8448948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In 335 extraarticular tibial-fibular fractures treated by open reduction of the tibia, nonunion of the fibula was noted in 15 cases (4.5%). Four of these cases were symptomatic, but resection of the hypertrophic nonunion provided relief of pain. Fixation of the fibula is not necessary in primary treatment of extraarticular lower leg fractures.
Collapse
Affiliation(s)
- W J Shen
- Department of Orthopaedic Surgery, University of Virginia Medical Center, Charlottesville 22908
| | | |
Collapse
|
29
|
Shen YS, Chen CF, Liu HM, Fang HS. Effects of rat bile infusion on renal function in rats. Ren Physiol Biochem 1990; 13:213-22. [PMID: 1691862 DOI: 10.1159/000173356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The influence of rat bile infusion on renal function in rats and the possible role of bile-induced hemolysis in these effects were examined. The hemolytic action of rat bile and some bile salts were determined in vitro. After the i.v. infusion of rat bile (70 mg freeze-dried powder/2.55 ml) into pentobarbitone-anesthetized rats, the urine, sodium and potassium excretion rates were reduced more than half, which was due to the decrease of glomerular filtration rate and increase of tubular water and sodium reabsorption. A fall in blood pressure, a rise in hematocrit, and hemolysis were also found. Infusion of hemolysed (30 microliters RBC) solution produced by distilled water and then made isotonic caused a short-duration increase in renal excretion and glomerular filtration rate, and the blood pressure was unchanged. Infusion of a rat bile-hemolysed solution after removal of bile acids with cholestyramine increased renal excretions at first with reduction thereafter. Infusion of the rat bile-hemolysed solution treated with barium sulfate produced a renal response very similar to rat bile alone. It is proposed that two factors are involved in the renal response after bile infusion, namely bile acid-induced hemolysis producing diuresis with natriuresis, and bile acid-induced antidiuresis and antinatriuresis, possibly due to a direct renal effect.
Collapse
Affiliation(s)
- Y S Shen
- Department of Physiology, College of Medicine, National Taiwan University, Taipei, ROC
| | | | | | | |
Collapse
|
30
|
Shen YS, Cheung CY, Nilsen PT. Chylous leakage after arthrodesis using the anterior approach to the spine. Report of two cases. J Bone Joint Surg Am 1989; 71:1250-1. [PMID: 2777855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Y S Shen
- Chung-Jen Orthopedic Hospital, Kaohsiung, Pingtung, Taiwan
| | | | | |
Collapse
|
31
|
|
32
|
Huang YL, Shen YS, Yan YH, Chao TC, Lin CC, Lin LM. Impacted "reversed" fused tooth: a case report. Gaoxiong Yi Xue Ke Xue Za Zhi 1986; 2:460-4. [PMID: 3463767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
33
|
Huang YL, Lin LM, Yan YH, Chao TC, Shen YS, Lin CC, Tsai CC. Bronchogenic carcinoma metastatic to the mandible--report of a case. Gaoxiong Yi Xue Ke Xue Za Zhi 1986; 2:478-85. [PMID: 3463768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
34
|
Shen YS. Gluteus maximus contracture. Clin Orthop Relat Res 1982:185-8. [PMID: 7073820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Abduction contracture of the hip (frog-leg deformity) is caused by contracture of the gluteus maximus muscle. A simple operation consisting of complete detachment of involved fibrous portions of the gluteus maximus from the greater trochanter to the ischial tuberosity is sufficient to release the contracture and enable the patient to squat without abducting the hips. Possible sciatic nerve injury is avoided by a periosteal elevator inserted between the muscle and the greater trochanter before division of the muscle. All patients showed marked improvement, and complications were virtually nonexistent. The etiology is probably associated with injections, but keloidal collagen disease may be important. A small incision is desirable because skin keloid formation invariably occurred in 200 cases followed for one to eight years.
Collapse
|
35
|
Mayer PJ, Dove J, Ditmanson M, Shen YS. Post-poliomyelitis paralytic scoliosis. A review of curve patterns and results of surgical treatments in 118 consecutive patients. Spine (Phila Pa 1976) 1981; 6:573-82. [PMID: 7336280 DOI: 10.1097/00007632-198111000-00008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Curve patterns and surgical treatment in 118 consecutive patients with post-poliomyelitic paralytic scoliosis are reviewed. The typical curve pattern was double structural curves, usually including the lumbar spine. Modifying the incision and altering the sequence of instrumentation facilitated both the exposure and instrumentation of the fourth and fifth lumbar bodies. Anterior fusion and Dwyer's instrumentation yield most of the correction of pelvic obliquity and significant correction of both the upper and lower curves. Two weeks of halofemoral traction did not achieve significant curve correction. It is suggested that staged anterior and posterior procedures result in structural correction of pelvic obliquity and paralytic scoliosis in severe deformities equal to the degree of correction obtained using posterior fusion and instrumentation alone in less severe cases.
Collapse
|
36
|
|
37
|
Abstract
An acid protease from Monascus kaoliang was purified by consecutive applications of fractional acetone precipitation, batchwise CM-cellulose method and DEAE-cellulose column chromatography. The preparation was homogeneous on disc polyacrylamide gel electrophoresis at pH 4.5 and 7.5. The yield was about 30% with overall increase in specific activity of about 6-fold. The molecular weight as determined by SDS gel electrophoresis was about 34,000. The enzyme was a glycoprotease as indicated by specific carbohydrate staining on gels. It possessed the nature of an acid protease with a pH optimum at 3.0 toward heat-denatured casein and was stable over the range of pH 3.0 to 6.0. Reducing agents and thiol poisons had no effect on this enzyme, suggesting that free sulfhydryl groups were not required for enzyme activity. Diisopropyl fluorophosphate did not inactivate this protease, indicating the probable absence of serine residue in the active site. The enzyme was inactivated by reaction with the carboxy-group specific reagent, 1,2-epoxy-3-(p-nitrophenoxy) propane (EPNP). Pepstatin, a specific inhibitor for pepsin, was shown to inhibit this enzyme strongly. However, biacetyl (2,3-butadione) had little effect on this protease, although it inactivated pepsin to an 85% activity loss. Also, p-bromophenacyl bromide, another specific inhibitor of pepsin, failed to inactivate this acid protease.
Collapse
|
38
|
Liang SC, Liang CS, Shen YS. [Simplified external skeletal fixation of lower leg fractures. Experience in using self-curing resin in 7 cases]. Taiwan Yi Xue Hui Za Zhi 1977; 76:398-405. [PMID: 267729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
39
|
Shen YS, Liang CS, Liang SC. [Compression plate in the treatment of lower extremity fracture - analysis of 199 cases]. Taiwan Yi Xue Hui Za Zhi 1976; 75:363-6. [PMID: 1068213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
40
|
Shen YS. Abduction contracture of the hip in children. J Bone Joint Surg Br 1975; 57:463-5. [PMID: 1194313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Nine cases of abduction contracture of the hip in children from contracture of the gluteus maximus muscle are reported. Division of the aponeurosis glutens maximus over the greater trochanter always permitted full adduction.
Collapse
|
41
|
Shen YS. Extra-articular subtalar arthrodesis--using a segment of the fibular bone for graft. Taiwan Yi Xue Hui Za Zhi 1972; 71:559-62. [PMID: 4510388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|