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1.
Maxillofacial Plastic and Reconstructive Surgery ; : 15-2017.
Article in English | WPRIM | ID: wpr-204565

ABSTRACT

BACKGROUND: This study constructed a partial-least-square path-modeling (PLS-PM) model and found the pathway by which the postsurgical vertical dimension (VD) affects the extent of the final mandibular setback on the B point at the posttreatment stage for the skeletal class III surgery-first approach (SFA). METHODS: This study re-analyzed the data from the retrospective study by Lee et al. on 40 patients with skeletal class III bimaxillary SFA. Variables were obtained from cone beam computed tomography (CBCT)-generated cephalograms. Authors investigated all variables at each time point to build a PLS-PM model to verify the effect of the VD on the final setback of the mandible. RESULTS: From PLS-PM, an increase in VD10 was found to decrease the absolute value of the final setback amount of the mandible, which reflects the postsurgical physiological responses to both surgery and orthodontic treatment, which, in turn, can be interpreted as an increase in postoperative mandibular changes. CONCLUSIONS: To resolve the issue of collinear cephalometric data, the present study adopted PLS-PM to assess the orthodontic treatment. From PLS-PM, it was able to summarize the effect of increased postsurgery occlusal vertical dimension on the increased changeability of the B point position at the posttreatment stage.


Subject(s)
Humans , Cone-Beam Computed Tomography , Mandible , Retrospective Studies , Vertical Dimension
2.
The Korean Journal of Internal Medicine ; : 26-32, 2005.
Article in English | WPRIM | ID: wpr-71016

ABSTRACT

BACKGROUND: The N-terminal fragment of pro Brain Natriuretic Peptide (NT-pro BNP) is a neuro-hormone synthesized in the cardiac ventricles in response to increased wall tension. The purpose of this study was to assess the correlation between the NT-pro BNP levels and the New York Heart Association function class (NYHA Fc) of dyspnea and echocardiographic findings for the patients who visited our cardiology departments. METHODS: From October, 2002 to April, 2003, serum NT-pro BNP levels were measured in 348 patients who visited the Samsung Medical Center and the Jong Koo Lee Heart Clinic. RESULTS: The NT-pro BNP levels were increased with the progression of NYHA Fc of dyspnea (p< 0.001 by ANOVA), the increase in the systolic left ventricular internal dimension (p< 0.05), and the decrease in the ejection fraction (p< 0.01). For the NYHA Fc I patients, the NT-pro BNP levels were positively correlated with age (p< 0.001) and left atrial size (p< 0.001). For the patients with ischemic heart disease, the NT-pro BNP levels were also positively correlated with the NYHA Fc (p< 0.001 by ANOVA). The NT-pro BNP levels were increased with the increase in the systolic (p< 0.001) and diastolic pressure (p=0.017), the left ventricular internal dimension as well as the decrease in the ejection fraction (p< 0.001). The area under the receiver operating characteristic (ROC) curve for the NT-pro BNP levels was 0.994 (95% confidence interval, 0.979-0.999), and the most reliable cut-off level for the NT-pro BNP was 293.6 pg/mL. CONCLUSION: The NT-pro BNP levels were positively correlated with the NYHA Fc of dyspnea and the systolic dysfunction for the patients who visited our cardiology departments. A 300 pg/mL value for the NT-pro BNP cut-off point appears to be a sensitive level to differentiate dyspnea originating from an ailing heart or not for the patients who visited our cardiology departments.


Subject(s)
Female , Humans , Male , Middle Aged , Dyspnea/physiopathology , Heart Failure/blood , Nerve Tissue Proteins/blood , Peptide Fragments/blood , Prospective Studies , Severity of Illness Index , Stroke Volume/physiology , Systole/physiology , Ventricular Dysfunction, Left/physiopathology
3.
Korean Journal of Medicine ; : 33-40, 2004.
Article in Korean | WPRIM | ID: wpr-24478

ABSTRACT

BACKGROUND: N-terminal fragment of pro Brain Natriuretic Peptide (NT-pro BNP) is a neuro-hormone synthesized from the cardiac ventricles in response to increased wall tension. The purpose of this study was to assess the correlation between NT-pro BNP levels and New York Heart Association function class (NYHA Fc) and echocardiographic findings in patients, who visited cardiology department. METHODS: From October, 2002 to April, 2003, serum NT-pro BNP levels were measured in 348 patients, who visited Samsung Medical Center and Jong Koo Lee Heart Clinic. RESULTS: NT-pro BNP levels were increased with the progression of NYHA Fc of dyspnea (p<0.001 by ANOVA) as well as with the increase in systolic left ventricular internal dimension (p<0.05) and the decrease in ejection fraction (p<0.01). In NYHA Fc I patients, NT-pro BNP levels were positively correlated with age (p<0.001) and left atrial size (p<0.001). In patients with ischemic heart disease, NT-pro BNP levels were also positively correlated with NYHA Fc (p<0.001 by ANOVA). NT-pro BNP levels were increased with the increase in systolic (p<0.001) and diastolic (p=0.017) left ventricular internal dimension as well as the decrease in ejection fraction (p<0.001). The area under the receiver operating characteristic (ROC) curve for NT-pro BNP levels was 0.994 (95% confidence interval, 0.979-0.999), and the most reliable cut-off level of NT-pro BNP was 293.6 pg/mL. CONCLUSION: NT-pro BNP levels were positively correlated with NYHA Fc of dyspnea and systolic dysfunction in patients, who visited cardiology department. A 300 pg/mL of NT-pro BNP level appears to be a sensitive level to differentiate dyspnea of heart origin or not in patients, who visited cardiology department.


Subject(s)
Humans , Cardiology , Dyspnea , Echocardiography , Heart Failure , Heart Ventricles , Heart , Myocardial Ischemia , Natriuretic Peptide, Brain , Natriuretic Peptides , ROC Curve
4.
Journal of Asthma, Allergy and Clinical Immunology ; : 647-656, 2001.
Article in Korean | WPRIM | ID: wpr-223982

ABSTRACT

BACKGROUND AND OBJECTIVE: In assessing the health-related quality of life of subjects with allergy, it is important to measure outcomes which are relevant to the concerns of patients. The goals of this study were to compare health-related quality of life and stress level among allergy, healthy and other-diseases groups, and also to compare the relationship of health-related quality of life and stress. METHOD: The study group consisted of 129 subjects with allergy, 139 healthy subjects and 68 subjects with other-diseases. The allergy group was divided into two sub groups: pure allergy group(65) and allergy group with other diseases(64). They completed a questionnaire measuring perceived health-related quality of life, stress and demographic characteristics. The health-related quality of life score was measured by Notingham Health Profile and the stress level was measured by Ok-Suk Lee's instrument. RESULTS: (1) In allergy group with other diseases, the total scores of health-related quality of life were significantly higher than for healthy, pure allergy and other-diseases groups. The results indicated that the perceived health-related quality of life of allergy group with other diseases was in the lowest status among the four groups. (2) Forty-two percent of allergy group with other diseases were in need of treatment for stress level. (3) Level of stress and scores of health-related quality of life have shared linear correlation in healthy and allergy group; higher stress indicates lower status in the quality of life for both groups. CONCLUSION: This study was examined the QOL and the stress level of allergy subjects. When compared with healthy and other-diseases groups, the scores of QOL and the level of stress of the pure allergy group were higher than those of the healthy group, and those of the allergy group with other diseases were also significantly higher than those of the other-diseases group. These results suggest a necessity for futher assessment to improve the QOL and to reduce the stress in allergy subjects.


Subject(s)
Humans , Hypersensitivity , Quality of Life , Surveys and Questionnaires
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