Background: Reconstruction after removal of a malignant tumor in the head and neck region is crucial for restoring tissue integrity, function, and aesthetics. We retrospectively analyzed patients who underwent intraoral reconstruction surgery using radial forearm free flaps (RFFF) and anterolateral thigh free flaps (ALT) at a single institution to provide more information supporting the choice of a reconstruction method after removal of head and neck cancer. Methods: The charts of 708 patients who underwent head and neck reconstruction between 1998 and 2018 at the Department of Plastic and Reconstructive Surgery at our institution were retrospectively reviewed. Patients’ age, sex, and history of radiation therapy, diabetes mellitus, and smoking were retrieved. The primary cancer site, types of defects, and complications were investigated. Results: Overall, 473 and 95 patients underwent reconstruction surgery with RFFF and ALT, respectively. RFFF was more often used in patients with cancers of the pharynx, larynx, esophagus, or tonsil, while ALT was more frequently used in patients with cancers of the mouth floor with tonsil or tongue involvement. The proportion of patients undergoing ALT increased gradually. Flap failure and donor site morbidities did not show significant differences between the two groups. Conclusions RFFF and ALT flaps resulted in similar outcomes in terms of flap survival and donor site morbidity. ALT can be an option for head and neck reconstruction surgery in patients with large and complex defects or for young patients who want to hide their donor site scars.

This paper describes the epidemiological characteristics of bovine brucellosis in Korea during January 2000~September 2004, which encompasses the period when the incidence of bovine brucellosis increased abruptly. Data from the National Animal Infectious Disease Data Management System were used for this study. A range of epidemiological measures was calculated including annual herd and animal incidence. During the study period, there were 1,183 outbreaks on 638 farms. In beef cattle, annual herd incidence increased from 0.2 (2000) to 11.5 (2004, to September) outbreaks per 10,000 and annual animal incidence varied between 3.4 (2000) and 105.8 (2004, to September) per 100,000, respectively. On 401 (62.9%) infected farms during this period, infection was eradicated without recurrence. Recurrence of infection was significantly higher on farms where abortion was reported (53.3%), compared to farms where it was not (30.0%). On beef cattle farms, infection was introduced most frequently through purchased cattle (46.2%). Based on the results of this study, the establishment and spread of brucellosis in the Korean beef cattle population were mainly due to incomplete or inappropriate treatment of aborted materials and the movement of infected cattle.
Animals ; Brucellosis ; Brucellosis, Bovine ; Cattle ; Communicable Diseases ; Disease Outbreaks ; Incidence ; Korea ; Recurrence

Thirty-five year-old Amadeus Mozart died in Vienna after an acute illness that lasted only 15 days but no consensus has been reached on the cause of his death. From many letters written by his farther it is almost certain that he experienced at least three episodes of acute rheumatic fever attack in his childhood, and a relapse of rheumatic fever was suggested to have killed Mozart, although death from acute rheumatic fever is very rare in adults. His last illness was characterized by high fever, massive edema, vomiting and skin rash. His last illness can be explained by infectious endocarditis and heart failure. During his last hours, he was given phlebotomy, possibly for the third time in two weeks, and soon after he became unconscious and died. As such, phlebotomy performed on a man dehydrated by high fever and vomiting may have caused systemic shock. In summary, Mozart probably died from chronic rheumatic heart disease complicated by infective endocarditis and heart failure, and repeated phlebotomy-induced hypovolemic shock.
Adult ; Bloodletting ; Consensus ; Edema ; Endocarditis ; Exanthema ; Fever ; Heart Failure ; Humans ; Phlebotomy ; Recurrence ; Rheumatic Fever ; Rheumatic Heart Disease ; Shock ; Unconscious (Psychology) ; Vomiting

To investigate psychopathology and executive functions of attention deficit hyperactivity disorder (ADHD) children according to intelligence level, this study included 197 ADHD children who visited the outpatient department of neuropsychiatry of YeungNam University Medical Center, from July 2000 to June 2002. The children were divided into groups based on their intelligence levels. They were compared by the Personality Inventory for Children (PIC), Conncers' Continuous Performence Test (CPT), and Wisconsin Card Sorting Test (WCST). There were significant differences in PIC, on the subscales of verbal development, socialization and autism. In the CPT, there was no significant difference. In the WCST, there were significant differences in the total number of errors, the number of perseverative errors, the number of completed categories and the number of trials needed to complete the first category. Considering these results, the intelligence level of ADHD children is related to their disabilities and behavioral symptoms. Executive functions such as abstract thinking, categorization, working memory and flexibility had significant relationship to the intelligence levels of ADHD children. Therefore, the intelligence level of children with ADHD influences the higher executive functions of regulating attention and information processing rather than attentional functions and capacity alone.
Academic Medical Centers ; Attention Deficit Disorder with Hyperactivity* ; Autistic Disorder ; Automatic Data Processing ; Behavioral Symptoms ; Child* ; Executive Function* ; Humans ; Intelligence* ; Memory, Short-Term ; Neuropsychiatry ; Outpatients ; Personality Inventory ; Pliability ; Psychopathology* ; Socialization ; Thinking ; Wisconsin

BACKGROUND: Detection of left ventricular regional wall motion abnormality(RWMA) by 2 dimensional echocardiography during ergonovine provocation(Erg Echo) can be used for noninvasive diagnosis of coronary vasospasm(CVS). The aim of this study was to test the safety and diagnostic validity of Erg Echo as a screening test in patients with chest pain syndromes before coronary angiography was undertaken. METHODS: From Mar 1993 to Jun 1994, Erg Echo was performed in 80 consecutive patients (56 males) with chest pain syndromes suggestive of variant angina, after the confirmation of negative treadmill or normal stress myocardial perfusion scan using thallium 201. A bolus of ergonovine maleate was injectedd at 5min intervals up to total cumulative dosage of 0.35mg with echocardiographic montioring of the left ventricular wall motion. Twelve leads ECG was also recorded every 3min after each ergonovine injection. The positive criteria of the test was transient ST segment clevation or depression greater than 0.1mV in 12-leads ECG or development of RWMA. Coronary angiography was undertaken 2(+/-4) days after Erg Echo, and spasm provocation test with acetylcholine, or ergonovine was done in case of normal angiogram or luminal narrowing of less than 70%. The appearance of total or subtotal occlusion of a major coroary artery associated with ST segment elevation or depression on the ECG or chest pain, or both, was considered to be a manifestation of spasm. RESULTS: According to the invasive angiographic criteria, 56 patients revealed CVS ; CVS was ruled oup in 19 patients showing near normal angiogram with negative spasm provocation test and in 5 patients with restion high degree fixed stenosis(luminal narrowing of 97+/-4%). Erg Echo could diagnose CVS before the angiography with the sensitivity of 91%(51/56,95% confidence interval [CI] ; 84-98%) and the specificity of 88%(21/24,95% CI ; 75-100%). Of 53 patients showing RWMA in Erg Echo, 42%(22/53) revealed no significant changes in the simultaneously recorded ECG and characteristic ST elevation was recorded in only 38%(20/53). There was no case of myocardial infarction or fatal arrhythmia during Erg Echo. CONCLUSION: Erg Echo befor the coronary angiography is safe and can e utilized as a reliable diagnostic screening test of CVS in patients with negative tradmill or normal stess myocardial perfusion scan, This finding suggests that invasive coronary angiography can be avioded in selected patients for the diagnosis of vasospastic angina.
Acetylcholine ; Angiography ; Arrhythmias, Cardiac ; Arteries ; Chest Pain ; Coronary Angiography* ; Coronary Vasospasm* ; Depression ; Diagnosis* ; Echocardiography* ; Electrocardiography ; Ergonovine* ; Humans ; Mass Screening ; Myocardial Infarction ; Perfusion ; Phenobarbital ; Sensitivity and Specificity ; Spasm ; Thallium

BACKGROUND: Dynamic echoes in the left atrium, spontaneous echo contrast(SEC), represents a marker for thromboembolic risk in patients(pts) with mitral stenosis(MS). The aims of this study were to determine the factors associated with SEC in pts with MS and to observe the immediate effect of percutaneous mitral, valvuloplasty(PMV) on SEC. METHODS: Biplane transesophageal echocardiography(TEE) including Doppler measurement of left atrial appendage flow was performed before and immediately after PMV in 50 pts with MS[32 in normal sinus rhythm(NSR) and 18 in atrial fibrillation(AF)]. Hemodynamic data of left atrial pressure, transmitral pressure gradient, mitral valve area by Gorlin's method(MVA) and cardiac output(CO) by thermodilution method were obtained before and after successful PMV. RESULTS: Before PMV(MVA of 0.9±0.3cm2), SEC was observed in 60%(30/50) of tight MS (13/32 in NSR, 17/18 in AF). The presence of AF(p=0.001), increased left atrial dimension(p=0.001), decreased appendage peak positive velocity(APPV, p=0.03), decreased MVA(p=0.01) and reduced CO(p=0.001) were positive predictive factors for SEC : AF was the most powerful factor among them. In pts with NSR, MVA(p=0.01) was the only factor for SEC before PMV. After successful PMV(MVA of 2.0±0.4cm2) SEC was still observed in 6 pts(12%) with AF. AF(p=0.001), increased left atrial dimension(p=0.06) and decreased APPV(p=0.001) were favorable factors for persistence of SEC after PMV, but hemodynamic indices were not associated with SEC after PMV. New development of mitral regurgitation after PMV was the only predictive factor for disappearance of SEC(p=0.04). In pts with NSR, PMV promptly normalized the APPV with disappearance of SEC. CONCLUSION: In pts with tight MS, different factors may be associated with SEC according to the rhythm. PMV is an effective method to abolish SEC with hemodynamic improvement. Despite the similar MVA and hemodynamic indices, possible preventive effect of thromboembolism after PMV nay be more prominent in pts with NSR compared to those with AF.
Atrial Appendage ; Atrial Pressure ; Heart Atria ; Hemodynamics ; Methods ; Mitral Valve ; Mitral Valve Insufficiency ; Mitral Valve Stenosis ; Thermodilution ; Thromboembolism

Establishment of a noninvasive diagnostic method to document coronary vasospasm would be useful in the management of the patients with variant angina, especially in the screening of the patients, evaluation of the therapeutic efficacy of the prescribed drugs and determination of the activity of the disease. The present study was performed to clarify the clinical feasibility and diagnostic validity of bedside intravenous ergonovine test and to determine the variables affecting the diagnostic sensitivity of the test. The study group consisted of 59 patients with chest pain in whom diagnostic coronary angiography with intracoronary acetylcholine challenge test for the induction of coronary vasospasm was performed ; 30 patients were proven to have variant angina and 29 patients to have atypical chest pain. Bedside ergonovine test was done one day after the diagnostic coronary angiography and reversible ST segment displacement(elevation or depression) and/or T wave changes in ECG with ergonovine injection was used as the only positive criteria of the test. A bolus of ergonovine maleate(0.025 or 0.050mg) was injected intravenously at 5 minute intervals up to total cumulative dosage of 0.25 mg, and blood pressure and a 12-lead ECG were recorded every 3 minutes after each injection. Intravenous nitroglycerin of 0.25mg was administered for the termination of the test when hypertension(systolic BP>200mmHg), hypotension(systolic BP<90mmHg) or significant arrhythmia was observed. Twenty seven out of 30 patients with variant angina developed chest pain or discomport during the test and among them 22 showed simultaneous reversible ECG changes. In 29 patients with atypical chest pain 11 patients(38%) complained of chest pain or discomport without reversible ECG change during the test, and the overall sensitivity and specificity of the beside ergonovine test were 73% and 100% respectively. The mean cumulative dose of ergonovine which evoked the positive reponse was 117microgram. The patterns of reversible ECG changes of the positive response were variable : 50%(11/22) showed significant ST segment elevation, while ST segment depression(18%) and T wave changes without ST segment displacement(32%) were observed with ergonovine injection. Degree of disease activity of the variant angina, number of spasm-induced vessels and presence of concomitant fixed lesion are important variables affecting the sensitivity of the test. The changes of blood pressure and heart rate were minimal during the test and there was neither significant arrhythmia nor test-related mortality. Thus we concluded that bedside intravenous ergonovine test is a safe, sensitive and highly specific test for coronary vasospasm in selected group of patients with chest pain syndrome. Further study with other methods besides ECG to document myocardial ischemia seems to be necessary for improvement of the sensitivity of bedside ergonovine test.
Acetylcholine ; Arrhythmias, Cardiac ; Blood Pressure ; Chest Pain ; Coronary Angiography ; Coronary Vasospasm ; Diagnosis* ; Electrocardiography ; Ergonovine* ; Heart Rate ; Humans ; Mass Screening ; Mortality ; Myocardial Ischemia ; Nitroglycerin ; Sensitivity and Specificity

BACKGROUND: Despite improved operator technique and advanced equipment designs, acute closure and restenosis remain as serious limitations to both the short and long-term success of balloon angioplasty. Atherectomy is a new transluminal interventional technique for the treatment of coronary artery obstructive disease. We evaluate preliminary experience of directonal coronary atherectomy (DCA) for complex coronary artery lesions. METHODS: We tried DCA in the 16 lesions of 15 nonrandomized sequential patients(mean age 66 years, M/F : 12/3) with coronary artery lesions that were ostial lesion in 4, ulcerated and/or eccentric in 13, restenosis after PTCA in 2 and after stent implantation in 2. The target vessel was right coronary artery in 7 and left anterior descending artery in 9. RESULTS: Primary success was achieved in 14 of 16 lesions (88%) by atherectomy and in 5(36%) by additional use of balloon angioplasty. Atherectomy retrieved tissue in 15 out of 15 attempts(100%). One patients suffered acute closure due to large dissection during the DCA which was solved successfully after stent implantation. CONCLUSIONS: Atherectomy can predictably treat selected patients with eccentric, ostial bulky coronary lesions with overall safety comparable to that of conventional balloon angioplasty, although the procedure as currently performed does not appear to prevent restenosis.
Angioplasty, Balloon ; Arteries ; Atherectomy ; Atherectomy, Coronary* ; Coronary Vessels ; Equipment Design ; Humans ; Stents ; Ulcer

BACKGROUND: Large series of patients with symptomatic mitral stenosis have undergone percutaneous mitral balloon valvuloplasty(PMV) with use of the Inoue or double balloon technique. But to date the result of the two procedure have not been compared with a single series prospectively. METHODS: In order to assess the immediate hemodynamic results and the longterm efficacy of two different PMV technique, a prospective, randomized trial of PMV was performed using the Inoue balloon(Toray, I group) in 59 patients and the double balloons(a pair of Mansfield balloon. D group) in 61 patients with moderate to severe mitral stenosis. Before valvuloplasty, the patients series were comparable with regard to average age. gender, most clinical and echocardiographic variables. All the patients(120 patients, M/F 38/82, mean age 41+/-11 year) were preselected with good echoscore> or =9. RESULTS: The success rate was 83% in the I group and 89% in the D group when the success defined as mitral valve area(MVA)> or =1.5cm2 with 25% gain in MVA and mitral regurgitation> or =2+ at the end of procedure. The magnitude of increase of mitral valve area and decrease of mitral gradient, left atrial pressure and pulmonary arterial pressure were not significantly different in the Inoue and double balloon series(1.0+/-0.4 and 1.1+/-0.4cm2 for mitral vale area, 10.2+/-6.6 and 11.7+/-6.4mmHg for mitral gradient, 10.5+/-6,4 and 12.9 +/-7,3mmHg for left atrial pressure, and 8.7+/-7.3 and 10.1+/-9.4 mmHg for pulmonary artrial pressure respectively). Immediatly after dilation, the long diameter changes of the mitral orifice was more prominent in the D group(from 1.0+/-0.2 to 2.6+/-0.4cm p<0.01) than those in I series(from 1.1+/-0.4 to 2.3+/-0.3cm) Moreover, the magnitude of increase in the EF slop was significantly larger in the D group(31.9+/-17.0 vs 21.8+/-14.2mm/sec, p<0.001). The duration of total procedure(56+/-20 vs 84+/-24 min, p<0.002) and the fluoroscopic time (15+/-6 vs 25+/-11min, p<0.002) was significantly shorter in group I. The incidence of left to right shunt at the atrial level(Qp/Qs>1.5) was 3.4% in group I and 4.9% in group D. Severe mitral regurgitation> or =3+ occurred in 2 patients in each I(3.4%) and D(3.3%) group respectively. At follow-up, the mitral valve area was significantly decreased(1.6 in group I vs 1.8cm2 in group D, P<0.001 vs immediate after MVA) at 6 months and well maintained at 1 year follow-up in both groups. Until 6 months after valvuloplasty, the long diameter of orifice was greater in group D, however the difference was not apparent at 1 year follow-up. CONCLUSION: The Inoue and double balloon techniques obtained equivalent results of the success rate and the frequently of complications. However, the Inoue balloon technique reduced significantly fluoroscope time and total procedure duration. Double balloon technique afforded a longer longitudinal splitting of the commissure immediatly and 6 months after valvuloplasty. However the differences was not apparent at 1 year follow-up. Increased MVA was well maintained at 1 year in both groups. The severity of the newly developed mitral regurgitation immediately after valvuloplasty reduced significantly in 53% of the Inoue and 43% in the double balloon group at 6 months follow-up. In the view point of similiar immediate and late results of the two methods, the stepwise dilation with Doppler echocardiographic monitoring during the Inoue procedure appeared to be cumbersome.
Arterial Pressure ; Atrial Pressure ; Balloon Valvuloplasty* ; Echocardiography ; Follow-Up Studies* ; Hemodynamics ; Humans ; Incidence ; Mitral Valve ; Mitral Valve Insufficiency ; Mitral Valve Stenosis ; Prospective Studies

BACKGROUND: The HMG-CoA reductase inhibitor is the most powerful cholesterol lowering drug and lovastatin, simvastatin and pravastatin are used clinically. We studied the efficacy and side effects of pravastatin monotherapy in patients with hypercholesterolemia(type IIa or IIb). METHODS: Patients who showed 12-hours fasting serum total cholesterol level more than 240mg% were enrolled to diet therapy. After 4weeks of diet therapy, serum lipid profiles were checked and the drug therapy was considered according to NCEP guidelines. The pravastatin 5mg po bid was administrated and the patients had regular follow-up every 2weeks for 8week. RESULTS: The total study population was 20 patients and the mean age of them was 55 years old (55+/-18, M : F=6 : 14). There were a few side effects in 5% of study patients and no patient discontinued pravastatin due to side effects.The side effect was G-I trouble and there were not other side effects. Serum CK was elevated in only one patient but the elevation was mild(less than 3 times) and transient. The LFT, serum uric acid, BUN and creatinine level did not show any significant changes during therapy. Among lipid profiles, total cholesterol, LDL-cholesterol and apolipoprotein B level showed significant reduction after therapy and the maximum reduction was achieved after 2week of therapy. The mean reduction was 20%, 33% and 23% respectively. HDL-cholesterol and apolipoprotein A1 11% and 17% respectively. The triglyceride level did not show any changes during therapy but in one type IIb patient, the triglyceride level decreased significantly. CONCLUSIONS: The pravastatin is effective and safe in patients with hypercholesterolemia.
Apolipoprotein A-I ; Apolipoproteins ; Cholesterol ; Creatinine ; Diet Therapy ; Drug Therapy ; Fasting ; Follow-Up Studies ; Humans ; Hypercholesterolemia* ; Lovastatin ; Middle Aged ; Oxidoreductases ; Pravastatin* ; Simvastatin ; Triglycerides ; Uric Acid