A 32 year-old man was scheduled for tracheal reconstruction after having special radiological studies and pulmonary function tests. Atropine was given preoperatively. A radial artery cannula was inserted for blood gas sampling and direct arterial pressure monitoring. The E,K.G. was monitored continuously. With the patient breathing a high concentration of oxygen from a mask, halothane was added to the inspired gas. After intramuscular injection of ketamine, halothane was discontinued. Spontaneous respiration was preserved with assistance when necessary. The larynx, pharynx and trachea were topically anesthetized and then a large-bore rubben orotracheal tube was placed in the trachea above the lesion. Anesthesia was maintained with additional ketamine injection. The trachea was explored through an anterior transverse cervical incision with a median sternotomy. The segment distal to the obstruction as dissected and found to be maligant tissue extending down to near the carina and behind the aortic arch. So, it was imperative to postpone further the surgery. Immediately after skin closure, the trachea was almost completely obstructed and PaCO2 value was above 150 mmHg. Therefore the airway was preserved by a pediatric bronchoscope, which was replaced by a pediatric endotracheal tube. Anesthetic management and tracheal resection and reconstruetion have been reviewed problems of induction in a patient with tracheal obstruction are discussed, and the technics for retaining control of the airway and reducing the hazards of hypoxia and hypercarbia are also stressed.
Adult ; Anesthesia* ; Anoxia ; Aorta, Thoracic ; Arterial Pressure ; Atropine ; Bronchoscopes ; Catheters ; Halothane ; Humans ; Injections, Intramuscular ; Ketamine ; Larynx ; Masks ; Oxygen ; Pharynx ; Radial Artery ; Respiration ; Respiratory Function Tests ; Skin ; Sternotomy ; Trachea

To prevent the spread of influenza among infants and adolescents attending kindergartens and schools, proper quarantining of those who are ill is necessary. In this study, the rapid antigen test (RAT) was performed in patients to investigate the factors affecting the duration of virus shedding. The study included pediatric patients who were diagnosed with influenza by RAT at Daedong Hospital between November 2016 and April 2019. We identified the influenza subtype, age, gender, fever duration, oseltamivir medications, and time gap between fever subsided and RAT examination through chart review. A total of 330 patients were examined at discharge. The average age for RAT positive and negative patients was 6.32 ± 4.26 years and 8.47 ± 4.54 years, respectively. The average duration of fever for the RAT positive patients was 3.84 ± 1.09 days, and for those who were RAT negative was 4.191 ± 1.39. The average number of doses oseltamivir for RAT positive and negative patients was 7.68 ± 1.57 and 8.72 ± 1.37, respectively. The RAT was performed 24 to 48 hours after fever subsided (TG 24–48H group). At this time, 60 patients were positive and the rate of positive expression was 55.56%. Of the TG 48–72H group, 36 patients (26.09%) were positive. Of the TG 72–96H group, 18 patients (21.43%) were positive. Age, fever duration, number of doses oseltamivir and time gap after fever subsided were the factors that influenced the duration of influenza virus shedding. These factors should be considered during the quarantining influenza patients.
Adolescent ; Animals ; Child ; Fever ; Humans ; Infant ; Influenza, Human ; Orthomyxoviridae ; Oseltamivir ; Pediatrics ; Rats ; Virus Shedding

To prevent the spread of influenza among infants and adolescents attending kindergartens and schools, proper quarantining of those who are ill is necessary. In this study, the rapid antigen test (RAT) was performed in patients to investigate the factors affecting the duration of virus shedding. The study included pediatric patients who were diagnosed with influenza by RAT at Daedong Hospital between November 2016 and April 2019. We identified the influenza subtype, age, gender, fever duration, oseltamivir medications, and time gap between fever subsided and RAT examination through chart review. A total of 330 patients were examined at discharge. The average age for RAT positive and negative patients was 6.32 ± 4.26 years and 8.47 ± 4.54 years, respectively. The average duration of fever for the RAT positive patients was 3.84 ± 1.09 days, and for those who were RAT negative was 4.191 ± 1.39. The average number of doses oseltamivir for RAT positive and negative patients was 7.68 ± 1.57 and 8.72 ± 1.37, respectively. The RAT was performed 24 to 48 hours after fever subsided (TG 24–48H group). At this time, 60 patients were positive and the rate of positive expression was 55.56%. Of the TG 48–72H group, 36 patients (26.09%) were positive. Of the TG 72–96H group, 18 patients (21.43%) were positive. Age, fever duration, number of doses oseltamivir and time gap after fever subsided were the factors that influenced the duration of influenza virus shedding. These factors should be considered during the quarantining influenza patients.

To prevent the spread of influenza among infants and adolescents attending kindergartens and schools, proper quarantining of those who are ill is necessary. In this study, the rapid antigen test (RAT) was performed in patients to investigate the factors affecting the duration of virus shedding. The study included pediatric patients who were diagnosed with influenza by RAT at Daedong Hospital between November 2016 and April 2019. We identified the influenza subtype, age, gender, fever duration, oseltamivir medications, and time gap between fever subsided and RAT examination through chart review. A total of 330 patients were examined at discharge. The average age for RAT positive and negative patients was 6.32 ± 4.26 years and 8.47 ± 4.54 years, respectively. The average duration of fever for the RAT positive patients was 3.84 ± 1.09 days, and for those who were RAT negative was 4.191 ± 1.39. The average number of doses oseltamivir for RAT positive and negative patients was 7.68 ± 1.57 and 8.72 ± 1.37, respectively. The RAT was performed 24 to 48 hours after fever subsided (TG 24–48H group). At this time, 60 patients were positive and the rate of positive expression was 55.56%. Of the TG 48–72H group, 36 patients (26.09%) were positive. Of the TG 72–96H group, 18 patients (21.43%) were positive. Age, fever duration, number of doses oseltamivir and time gap after fever subsided were the factors that influenced the duration of influenza virus shedding. These factors should be considered during the quarantining influenza patients.

PURPOSE: To evaluate the therapeutic results of communited intercondylar fractures of the distal humerus that were treated by surgical treatment. MATERIALS AND METHODS: From January, 1998 to December, 2004, we reviewed fifteen cases of intercondylar fracture of the distal humerus, which were treated by surgical treatment. The follow up period ranged from six month to 5 years. The functional results were evaluated using Broberg and Morrey's functional scale according to surgical approach, type of plate and location of plating. RESULTS: The functional results were as follows; seven excellent, six good, one fair and one poor. The mean range of motion in elbow joint was 7~106 degrees. The mean functional score was 86.6 points through olecranon osteotomy, 90.5 points through Campbell's posterior approach. The mean functional score was 91.6 points in cases using 2 reconstruction plate, 78 points in cases using 1 reconstruction plate and 1/3 semitubular plate, and 86 points in case using 1 reconstruction plate and lag screws. The mean functional score was 88.9 points in cases by posterior and lateral fixation, 86 points in cases by both posterior fixation and 97 points in case by both lateral fixation. CONCLUSION: There are no significant differences in treatment outcome according to surgical approach, different plate and location of plating.
Adult* ; Elbow Joint ; Follow-Up Studies ; Humans ; Humerus* ; Olecranon Process ; Osteotomy ; Range of Motion, Articular ; Treatment Outcome

PURPOSE: To evaluate the Three years clinical results of a total knee arthroplasty using the NexGen LPS-Flex fixed bearing system. MATERIALS AND METHODS: One hundred knees(65 patients) which used the LPS-Flex system for primary TKA and were followed up for a minimum Three years were evaluated. Evaluations included preoperative and postoperative range of motion(ROM), factors affecting the postoperative ROM that included age of the patient, the body mass index, the flexion contracture, degree of varus deformity, and Hospital for Special Surgery score. RESULTS: Knee ROM increased from preoperative 122.8 degrees to postoperative 130.5 degrees. The mean HSS score improved from preoperative 58.4 to postoperative 91.3. The femoral-tibial angle was changed from preoperative 6.4 degrees varus to a pos- toperative 5.5 degrees valgus. The most important factor that influenced the range of motion after an arthroplasty was the preoperative range of motion. One deep infection developed, but was cured with synovectomy and administration of antibiotics. CONCLUSION: Primary TKR with NexGen LPS-Flex system showed satisfactory early results including excellent ROM. We found that preoperative ROM had a significant effect on postoperative ROM.
Anti-Bacterial Agents ; Arthroplasty* ; Body Mass Index ; Congenital Abnormalities ; Contracture ; Follow-Up Studies* ; Humans ; Knee* ; Range of Motion, Articular

PURPOSE: To compare the clinical and radiological results between patellar resurfacing, group and patellar retention group in total knee arthroplasty. MATERIALS AND METHODS: Of the 74 patients who underwent total knee arthroplasty on due to knee osteoarthritis since March 1996, and followed-up for at least for 5 years, there were 42 and 32 cases in the patellar retention and patellar resurfacing groups respectively. These subjects were evaluated preoperatively and at 1 and 5 years postoperatively using the pain score, Hospital for Special Surgery (HSS) knee score, walking and stair-climbing in knee function score and radiological analysis. The radiological evaluation was achieved by measuring the patellar tilt angle and displacement with a 45degreesmerchant view. The results were analyzed using the student's t-test. RESULTS: There were no significantly differences between the patellar resurfacing and patellar retention groups in the pain score, HSS knee score, walking in knee function score and radiological analysis (p>0.05), but the patellar retention group achieved superior results in stair-climbing (p<0.05). CONCLUSION: The clinical and radiological results were similar in the patellar retention and patellar resurfacing groups. The use of selective indications of patellar resurfacing is required in order to achieve better results for total knee arthroplasty.
Arthroplasty* ; Follow-Up Studies* ; Humans ; Knee* ; Osteoarthritis ; Osteoarthritis, Knee ; Patella ; Walking

BACKGROUND AND OBJECTIVES: Heart failure rarely occurs in patients with thyrotoxicosis (6%), with half of the cases having left ventricular dysfunction (LVD). Although a few studies reported isolated right heart failure in thyrotoxicosis, there has been no evaluation of relationship between LVD and right ventricular dysfunction (RVD). SUBJECTS AND METHODS: We enrolled 12 patients (mean age: 51+/-11 years, 9 females) diagnosed as having thyrotoxicosis with heart failure and LVD {left ventricular ejection fraction (LVEF) <40%}, and divided them into two groups {Group I with RVD defined as tricuspid annular plane excursion (TAPSE) less than 15 mm and Group II without RVD}. Clinical features, laboratory variables, and echocardiographic parameters were compared between two groups. RESULTS: RVD was found in 6 (50%) patients. On admission, there were no significant differences between the two groups in clinical features, laboratory variables, or echocardiographic parameters including atrial fibrillation {6 vs. 5, not significant (NS)}, heart rate (149+/-38 vs. 148+/-32/min, NS), LVEF (36.7+/-9.5 vs. 35.1+/-6.3%, NS), or the tricuspid regurgitation peak pressure gradient (TRPPG, 30.9+/-2.0 vs. 36.3+/-9.3 mmHg, NS). After antithyroid treatment, all achieved an euthyroid state and both ventricular functions were recovered. All data, including the recovery time of LVEF and the change of heart rate between two groups, displayed no significant differences. CONCLUSION: In half of patients, RVD was combined with thyrotoxicosis-associated LVD. There were no differences in clinical factors or hemodynamic parameters between patients with and without RVD. This suggests that RVD is not secondary to thyrotoxicosis-associated LVD.
Atrial Fibrillation ; Heart Failure ; Heart Rate ; Hemodynamics ; Humans ; Stroke Volume ; Thyrotoxicosis ; Tricuspid Valve Insufficiency ; Ventricular Dysfunction, Left ; Ventricular Dysfunction, Right ; Ventricular Function

BACKGROUND AND OBJECTIVES: Several echocardiographic methods, such as ejection fraction, fractional shortening, and Doppler tissue imaging (DTI), have been developed to quantify systolic function but all had several important limitations. The purpose of this study was to quantify the regional wall motion abnormality, using strain, in an acute myocardial infarction, compared with a visual estimation. SUBJECTS AND MEHTODS: Forty-five patients, with acute anterior (n=28) and inferior myocardial (n=17) infarctions, who underwent color DTI, were examined using longitudinal strain and standard echocardiography, and the results were compared with 54 normal controls. A total of 594 segments [3 segments (apical, mid and basal portion) of septum and inferior wallx99 patients] were evaluated. RESULTS: In the normal control group, the strain was uniformly distributed in all segments (-20%~-23%). In the infarction groups, the strain was negatively related with the wall motion score. The strain of the apical segments and mid-septum was decreased in the anterior wall infarctions, and the strain of basal septum and mid to basal inferior wall was decreased in the inferior wall infarctions. The dyskinetic segments showed positive strain. CONCLUSION: This study validates strain as a superior method for the quantification of the regional wall motion abnormality in an acute myocardial infarction than visual estimation.
Echocardiography ; Humans ; Infarction ; Myocardial Infarction*

BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a major cause of death and disability worldwide and one of the most prevalent diseases in Korea. We examined trends and risk factors of health care utilization for COPD in Korea. METHODS: We retrospectively analyzed the database of Patient Surveys from 1990 through 2008, which were nationwide surveys of health services utilization through outpatient department (OPD) visits and hospitalization. Physician-diagnosed COPD patients whose ages were 45 years and older were included. RESULTS: OPD visits and hospitalization of COPD patients between 1990 and 2008 were estimated to be 68,552 and 17,774 persons, respectively. Trends in OPD visits and hospitalization for COPD significantly increased from 1990 through 2008 (p=0.019, p=0.001, respectively). The increment rate for OPD visits was 2.0 fold over those years; for hospitalization it was 3.3 fold. Risk factors for OPD visits for COPD were male gender (odd ration [OR], 1.41; 95% confidence interval [CI], 1.39~1.43), those aged 65 years and older (OR, 1.50; 95% CI, 1.47~1.53), residential area other than a metropolis (OR, 1.08; 95% CI, 1.07~1.010) and access to a physician's office (OR, 1.17; 95% CI, 1.14~1.21). Risk factors for hospitalization were male gender (OR, 2.15; 95% CI, 2.07~2.23), those aged 65 year and older (OR, 2.86; 95% CI, 2.72~3.00), residential area other than a metropolis (OR, 1.98; 95% CI, 1.90~2.07) and access to a hospital (OR, 2.88; 95% CI, 2.59~3.22) (p<0.001, both). CONCLUSION: Health care utilization for COPD subjects increased from 1990 to 2008. Risk factors for the utilization were male gender, older age, and residential area other than a metropolis.
Aged ; Cause of Death ; Community Health Services ; Delivery of Health Care ; Health Care Surveys ; Health Services ; Hospitalization ; Humans ; Korea ; Male ; Outpatients ; Physicians' Offices ; Pulmonary Disease, Chronic Obstructive ; Retrospective Studies ; Risk Factors