No abstract available.
Congenital Abnormalities* ; Knee* ; Osteoarthritis* ; Osteotomy*

No abstract available.
Jaw*

No abstract available.
Neurilemmoma*

No abstract available.
Regeneration*

No abstract available.
Aged* ; Femur Neck* ; Fractures, Spontaneous* ; Humans

The term dilated(congestive) cardiomyopathy refers to a variety of cardiac disorders that have in common ventricular dilation and reduced myocardial contractility, and is derived from the common late clinical manifestation of congestive heart failure. Since echocardiography can evaluate several aspects of anatomical structures and cardiac function, it has provide a valuable contribution to the understanding of ventricular function and diagnosis of dilated cardiomyopathy. The purpose of this study is to perform the echocardiographic evaluation of left ventricular function in 44 patients with dilated cardiomyopathy and to compare the patients with normal individuals. The patients, 24 males and 20 females, had a mean age of 53.0 and body surface area of 1.61m2. Normal individuals as a control group, 10 males and 10 females, had a mean age of 47.2 and body surface area of 1.67m2. Among 44 patients with dilated cardiomyopathy, 22 cases had a history of heart failure and in 15 cases systolic murmur was heard at the apex. The cardiothoracic ratio was 0.7+/-0.1 on chest X-ray which showed significant difference when compared to normal control group, being 0.4+/-0.1(p<0.01) One case showed left ventricular thrombus and in 8 cases small mounts of pericardial effusion were noted. Among the 44 patients two had uremia, one had a history of myocarditis, one patient was young female whose illness began during the peripartum period and one had a diabetes mellitus. Results obtained were as follows; 1) Mitral valve echocardiogram (1) DE amplitude and EF slope of mitral valve(16.5+/-3.3mm and 83.5+/-3.65mm/sec respectively) showed significant decrease when compared to normal control group (20.1+/-3.0 mm and 102.4+/-28.9 mm/sec respectively) (p<0.01 and p<0.05). (2) EPSS (25.5+/-7.6mm) and the distance between posterior cusp of mitral valve and left ventricular posterior wall (9.1+/-2.1mm) showed significant increase (p<0.01) when compared to normal control group (7.1+/-2.1mm and 5.9+/-1.2mm). The ratio of the separation of two mitral leaflets to the left ventrticular diastolic dimension (0.4+/-0.1) showed significant showed significant decrease in patients when compared to normal control group (p<0.01) (3) Among 44 patients with dilated cardiomyopathy, 12 cases showed B-notch in mitral valve. 2) Echocardiographic findings of aortic valve. Left atrial size was markedly increased (37.7+/-7.5mm) when compared to nomal control group (29.1+/-4.9) (p<0.01). The ratio of left atrial size to aortic dimension was 1.3+/-0.3, showing significant increase when compared to normal control group (0.99+/-0.3) (<0.01). And 4 cases showed systolic notch in aortic valves. 3) Echocardiographic findings of left ventrcle and ventricular septum. (1) Left ventricular diastolic and systolic dimensions (41.8+/-7.8mm/m2 and 36.7+/-7.2mm/m2) were markedly increased in patient with dilated cardiomyopathy, when compared to normal control group (30.4+/-2.6mm/m2 and 11.4+/-3.2mm/m2) (p<0.1, both). Left ventricular diastolic and systolic volume (181.5+/-91.0ml/m2 and 136.6+/-69.7ml/m2) were also significantly higher in patients with dilated cardiomyopathy when compared to normal control group (79.1+/-23.8mm/m2 and 19.4+/-2.5ml/m2) (p<0.01, both). (2) Ejection fraction (0.32+/-0.10) percent fractional shortening (12.3+/-4.6) and mVcf (0.5+/-0.2 cric/sec) showed significant decrease in patients when compared to normal control group (0.74+/-0.05, 34.6+/-6.7 and 1.4+/-0.2) (p<0.01, all). Thus, We could find the reduced myocardial contractility in dilated cardiomyopathy. (3) Systolic amplitudes of venticular septum (LSa) and ventricular posterior wall (Ena) were markedly decreased (p<0.01). The sum of both values (LSa+ENa) also showed significant decrease (12.0+/-4.2mm) when compared to normal control group (p<0.01) (4) Thickness of ventricular septum and ventricular posterior wall showed slight increase in patients, but there was no significant changes when compared to normal group. 4) Systolic time interval Echocardiograms showed significant increase in ratio of preejection period to ejection time, when compared to normal group (p<0.01). Thus, the author observed that in dilated cardiomyopathy the contractility of left ventricle was significantly reduced and the left ventricular diameter and diastolic volume of left ventricle showed marked increase. And also the decreased motions of ventricular septum and posterior wall of left ventricle were noted.
Aortic Valve ; Body Surface Area ; Cardiomyopathies ; Cardiomyopathy, Dilated* ; Diabetes Mellitus ; Diagnosis ; Echocardiography* ; Female ; Heart Failure ; Heart Ventricles ; Humans ; Male ; Mitral Valve ; Myocarditis ; Pericardial Effusion ; Peripartum Period ; Systole ; Systolic Murmurs ; Thorax ; Thrombosis ; Uremia ; Ventricular Function ; Ventricular Function, Left* ; Ventricular Septum

The present study was aimed to investigate the effect of osseointegration according to implant placement timing in the distracted alveolar bone using intraoral distraction device. Six adult mongrel dogs of either sex, weighing about 15kg, were used. The animals were divided into 4-week and 8-week groups according to the timing of implant installation. The left upper and lower premolars and first molars were extracted and an alveoloplasty was performed to simulate an atrophic ridge. After 12 weeks of healing, a segmental osteotomy was made and an intraoral distraction device which was designed for augmentation of vertical height of the edentulous ridge was applied. Latency period was allowed for 5 days and then distraction was made at a rate of 1.2mm/day for 8 days. Four or eight weeks after distraction, implants were installed. Twelve weeks after implant installation, the animals were sacrificed. Macroscopic, radiographic, and histologic examinations of distracted alveolar ridge were performed. No significant abnormalities such as infection and dehiscence of overlying soft tissue were observed. Radiographically, there was slight bone resorption around the medial and distal edges of the alveolar bone segment, and a new bone deposition was observed in the neighboring alveolar crest area in the both groups. The satisfactory osseointegration was achieved in the distracted gap of the both groups, but fibrous tissue appeared on the buccal side of implant in the distracted gap in 4-week group. These results suggest that proper timing of implant installation is 8 weeks rather than 4 weeks after distraction when dental implant is to be placed onto the distracted bone.
Adult ; Alveolar Process ; Alveoloplasty ; Animals ; Bicuspid ; Bone Resorption ; Dental Implants ; Dogs* ; Humans ; Latency Period (Psychology) ; Molar ; Osseointegration* ; Osteotomy

BACKGROUND: Chronic stress is associated with physical illness such as coronary artery disease and hypertension. Daily life habits being able to affect physical health and are associated with mental stress. We studied the relationship between physical illness and stress amount so far. However, the investigation about the stress and the health habits to affect disease directly was not studied enough. Eventually we tested this investigation to know the relationship between stress amount and health habits. METHODS: We measured stress amount and health habits for a month(from May 1 to May 31, 1997) through the people who had already received health screening and were working as researchers. We used 147 results out of 212. Health habits were investigated about 6 articles out of "Breslow's 7 Health habits" and stress amount was measured by evaluation scale made by Lee, Pyoung-sook. RESULTS: There were no differences in amounts of stress of subjects according to age, years in work, hours of sleeping, having breakfast or not, the frequency of exercise and body mass index(BMI). But there were significant differences in amounts of stress of subjects according to drinking amount, smoking or not, and health habit index(P<0.01). CONCLUSIONS: Drinking and smoking appeared to be health habits related to the amounts of stress. Prospective studies are needed ? find a causal relationship between health habits and stress amount.
Breakfast ; Coronary Artery Disease ; Drinking ; Hypertension ; Mass Screening ; Smoke ; Smoking

To dtermine the optimal timing for Aortic Valve Replacement in patients of aortic insufficiency is very important, because irreversible myocardial damage can result before symtoms such as dyspnea, syncope and chest pain, appear for the first time. Henry suggested that the echocardiographic index of left ventricular end systolic dimension 55mm could be useful as an indicator of whether to operate or not. But Fioretti, et al., insisted that there was no significant difference postoperatively between those below 55mm and those over 55mm. To determine whether a left ventricular end systolic dimension greater than 55mm is one of the risk factors for AVR in patients with aortic insufficiency, we analyzed the serial echocardiographic examinations of 23 patients who underwent AVR for isolated AI. Group I patients (n=17) had a preoperative left ventricular end systolic dimension less than or equal to 55mm and Group II patients (n=6) had a preoperative left ventricular end systolic dimension greater than than 55mm. 1) left ventricular end systolic dimension decreased in both groups significantly, and there was a statistically significant difference between Group I and Group II at 12 modths after operation. 2) Left ventricular end diastolic dimension also decreased in both groups significantly, and there was a statistically significant difference between Group I and Group II at 12 months after operation. 3) Ejection Fraction was decreased markedly just postoperatively, but it was recovered soon in both groups, and there was no statistically significant differences of the ejection fractions between the two groups postoperatively. 4) SV1+/-RV6 in EKG, as an indicator of LV mass, was also analzed and it revealed significant reduction in both groups postoperatively, but we could not observe statistically significant differences between the two groups from 6 months after the operation. We concluded that the preoperative left ventricular end systolic dimension 55mm could be useful as an index to predict postoperative prognosis and to determine the timing of aortic valve replacement.
Aortic Valve* ; Chest Pain ; Dyspnea ; Echocardiography* ; Electrocardiography ; Humans ; Prognosis ; Risk Factors ; Syncope

Peutz-Jeghers Syndrome, characterized by autosomal inheritance, skin pigmentation, and hamartomatous polyps, had long been considered a benign polyposis until recent studies suggested an association with increased risk of malignant neoplasia in patients who had been followed-up for long periods. The authors present a case of Peutz-Jeghers syndrome in a 44 year old man with an adenomatous malignant change in his small bowel. The patient underwent surgery following a diagnosis of intestinal intussuception. Observing the polyps resected, all the polyps had characteristics of hamartoma, excluding one which showed a malignant transformation. Although it has not been fully determined with certainty whether the adenocarcinoma developed from hamartoma, histologic examination of an excised specimen suggested, thht potency of hamartoma to undergo malignant transformation. All the members of the family were confirmed to have no evidence of Peutz-Jeghers syndrome. Our clinical experience determines the malignant potency in Peutz-Jeghers and recommends that intensive follow-up of gastrointestinal and extragastrointestinal sites is needed in patients with this syndrome.
Adenocarcinoma ; Adult* ; Diagnosis ; Follow-Up Studies ; Hamartoma ; Humans ; Male* ; Peutz-Jeghers Syndrome ; Polyps ; Skin Pigmentation ; Wills