No Abstract Available.
Cataract*

Fracture of the femoral neck occurred after internal fixation of intertrochanteric fracture of the femur is very rare and have been described previously in terms of stress fracture, stress-riser fracture, Youngs modulus fracture or iatrogenic fracture in the literature. This fracture documented about 20 cases in the English literature and usually occurred in elderly patients with osteoporosis and it always occur in the subcapital region. We report a case of subcapital stress fracture of the femur occurred after internal fixation with compression hip screw of intertrochanteric femur fracture.
Aged ; Elastic Modulus ; Femur Neck ; Femur* ; Fractures, Stress* ; Hip ; Humans ; Osteoporosis

BACKGROUND: We reviewed retrospectively the clinical features and contrast material-enhanced computed tomography(CT) after blunt abdominal trauma demonstrated a characteristic hypoperfusion complex. Our purpose were to evaluate the hypothesis that children with this 'hypoperfusion complex' CT finding were associated with a tenuous hemodynamic state, severe injury and a poor outcome. METHODS: Between January 1996 and December 1999, 39 consecutive children who sustained blunt trauma and were suspected clinically of having intraabdominal injury underwent CT. Demographic data, blood pressure, indication for CT, pediatric trauma score(PTS) and Glasgow coma score(GCS) were recorded at the time of the initial examination. RESULTS: Three of the 39 children(8%) demonstrated a characteristic finding at CT which was described as the hypoperfusion complex. The 'hypoperfusion complex' was present in the 3 of the 39 traumatized children(8%), but was the main radiographic finding in the 3 of the 14 children with a severe pediatric trauma score(PTS<8) and in the 3 of the 6 children with a Glasgow coma score(GCS<8) who were examined with CT. CONCLUSION: The CT finding in all children with the hypoperfusion complex by definition included marked, diffuse dilatation of the intestine with fluid; abnormally intense contrast enhancement of the bowel wall, mesentery, kidney and/or pancreas; decreased caliber of the abdominal aorta and inferior vena cava(IVC); and moderate to large peritoneal fluid collection. This 'hypoperfusion complex' is a relatively rarely observed in injured children but appears to be associated with severe injury and a poor outcome. The pediatric trauma score provides a useful profile of injury severity in children. Prompt diagnosis of hypovolemic shock is important so that supportive therapy can be instituted to prevent further metabolic abnormalities and their potential cardiotoxic effects. In summary, the intense multiorgan enhancement pattern seen in the hypoperfusion complex indicates tenuous hemodynamic stability and is associated with a poor outcome.
Aorta, Abdominal ; Ascitic Fluid ; Blood Pressure ; Child* ; Coma ; Diagnosis ; Dilatation ; Hemodynamics ; Humans ; Hypovolemia* ; Intestines ; Kidney ; Mesentery ; Pancreas ; Retrospective Studies ; Shock* ; Tomography, X-Ray Computed*

This study was aimed to elucidate the relationship between combinations of treadmill speed-grade and oxygen consumption(Vo2). Twenty athetic and 20 non-athletic male college students aged 19-24yr were employed to exercise on a treadmill using 4 speeds(4.02, 5.47, 6.76 and 8.05km/h) and 5 grades(0, 8, 12, 16 and 20%). A fixed speed was selected for each session with the grade increased every 3 min. The Vo2, heart rate, stride frequency and stride length were measured during the last min of each 3-min stage. Vo2increased linearly with increasing speed and grade showing significant multiple correlations in nonathletes(Vo2=3.64x+0.831y+0.031xy-7.03, R=0.98, P<0.01) and athletes(Vo2=3.48x+0.324y+0.112xy-5.74, R=0.99, P<0.01). Stride frequency and length tended to increase with increasing speed except for the transition from walking to runnig at 8.05Km/h at which the stride frequency ran up much higher with the stride length getting lower than at 6.76Km/h. Heart rate increased linearly with increasing Vo2. The rate of increase was higher during walking than during running. These results indicate that athletes have higher rate of increase in Vo2than nonathletes at near-maximal exercise and may be used as a guideline in predicting maximum oxygen comsumption and in prescribing exercise intensity.
Athletes* ; Heart Rate ; Humans ; Male ; Oxygen Consumption* ; Oxygen* ; Running ; Walking

BACKGROUND: House dust mites have been reported to play an aportant role in the pathogenesis of atopic dermatitis(AD). In fact a high positive rate for house dust mites in the skin prick test was observed in patients of AD. However, it is quite difficult to determine the clinical relevance of positive immediate hypersensitivity to mite antigen by clarical history alone because AD patients are nearly always exposed to these antigens in their daily lives. OBJECTIVE: The aim of this study was to elucidate the clinical. singficance of a positive immediate hypersensitivity reaction by observing the proliferative respons of peripheral blood mononuclear cells(PBMC) to mite antigen in the AD. METHODS: The proliferative response of PBMC separated from Dermatopkagoides farinae(Df) positive AD patients to Df antigen was compared with that from Df negative normal controls, Df positive normal controls and Df negative AD patients. RESULTS: PBMC from Df positive AD patients showed signinc not proliferation in response to Df antigen evaluated by comparing stimulation indices(SI) among different experiment groups. CONCLUSION: Significant correlation between responses of PBMC and immediate hypersensitivity of skin to Df antigen in AD was found, and it was suggested the Df may be a real aggravating factor in the Df positiv AD patients. SI may be used as ar objective criteria to select patients for hyposensitization therapy after doing a skin test.
Dermatitis, Atopic* ; Desensitization, Immunologic ; Humans ; Hypersensitivity, Immediate* ; Mites* ; Pyroglyphidae ; Skin Tests ; Skin*

Open carpal tunnel release surgery has heen the gold standard method of treatment for who did not respond to conservative treatment and whose neurologic symptoms were progressive. However, open carpal tunnel release using a standard incision frequently associated with delayed return of hand function, residual scar tenderness and pillar pain. So, two new alternative methods such as endoscopic carpal tunnel release and limited incision technique have developed. To define the role of the limited two incision technique, we anaiyzed the postoperative functional results of 40 cases in 33 patients. The patients were divided in two groups. Group A was standard incision group (23 cases in 19 patients) and Group B was limited two incision group (l7 cases in 14 patients). The postoperative functional results were analyzed statistically using chi-square test at postoperative 3, 6, 9 and l2 weeks. There were no significant differences in reliet of numbness and paresthesias in both groups. There was a statistically significant difference in relief of scar tenderness and pillar pain at postoperative 3 and 6 weeks in Group B. There was no significant complication in both groups. We can conclude that the limited two incision technique of carpal tunnel release is a safe procedure which allows rapid return of hand functions with reduced incidence of scar tenderness in the early postoperative stages.
Carpal Tunnel Syndrome ; Cicatrix ; Hand ; Humans ; Hypesthesia ; Incidence ; Neurologic Manifestations ; Paresthesia

Articular cartilage is a highly differentiated tissue, lacking a vascular supply and having only limited regenerative capability. Cut or other mechanical damage restricted to the cartilage does not repair. Experimentally and clinically, cartilage defect that penetrate the subchondral bone undergoes repair through the formation of tissue usually characterized as fibrous, fibrocartilaginous or hyaline-like cartilaginous tissue. There is little definitive informations about local or systemic factors that control the differentiation of mesenchymal cells to osteoblast, chondroblast or fibroblast. Our study was designed to evaluate the effect of transforming growth factor-beta (TGF-pl) and autogenous periosteal graft on the healing of osteochondral defect of distal femur of rabbit and also the possibility of these method to be clinically applicable to human. The experimental model used in the present study for including cartilage in rabbit was based mainly on the model used by Frukawa et al14). in rabbit. A full thickness osteochondral defect of 80 rabbit were made with 2mm diameter of drill-bit and electrically driven drill. Experimental animals were divided into four group: 1) group I, osteochondral defect only, 2) group II, osteochondral defect with infiltration of phosphate buffer solution, 3) group III, osteochondral defect with infiltration of TGF-Bl, 4) group IV, osteochondral defect with autogenous periosteal graft. The healing of the defect was assessed at 1 week, 3 weeks, 5 weeks, 12 weeks after operation by gross and histochemical examination. At 1 week, fibrinoid material in edge to edge arcade arrangement was present in group I,II,III,IV. At 3 weeks, spindle shaped undifferentiated mesenchymal cell present in the periphery of fibrinous network, but there is no appearance of mesenchymal cell in group I,II. At 5 weeks, essentially complete repopulation of the defect with progressive differentiation of cells to chondroblast, chondrocyte, osteoblast and synthesis of cartilage and matrix in their appropriate location in group III and IV were found. At 12weeks, hyaline like cartilage formation was observed in group III and IV. but early trace of degeneration of the cartilage were seen in many defect with the prevalence and intensity of the degeneration increasing at group I and 3 . Our study demonstrated in detail the repair of full-thickness defect in rabbit articular cartilage extending into cancellous bone of the marrow cavity under influence of local growth factor (TGF-pl) and autogenous periosteal graft. Excellent reconstruction of articular cartilage was observed in TGF- Bl infiltration group and autogenous periosteal graft group as early as 5 weeks after the creation of defect. Although the further study should be carried out for their clinical application, we conclude that TGF-Bl regulates the overall mechanism of matrix constituent in connective tissue and autogenous periosteal graft have a chondrogenic potential to repair major osteochondral defect. these suggest that TGF-Bl and autogenous periosteal graft may be a important pathophysiological regulator of chondro- genesis.
Animals ; Bone Marrow ; Cartilage ; Cartilage, Articular ; Chondrocytes ; Connective Tissue ; Femur ; Fibrin ; Fibroblasts ; Humans ; Hyalin ; Models, Theoretical ; Osteoblasts ; Prevalence ; Transplants*

Esthetics ; Facial Bones ; Malocclusion ; Mastication ; Orthognathic Surgery

BACKGROUND AND OBJECTIVES : The transradial approach has been increasingly used as an alternative to conventional transfemoral intervention. However, there is little data on the efficacy of transradial coronary intervention (TRI) in left main coronary arterial (LMCA) disease. The purpose of this study was to evaluate the feasibility of TRI in selective patients undergoing percutaneous coronary intervention (PCI) for LMCA disease. SUBJECTS AND METHODS : Between Jan 2003 and May 2005, 83 patients with LMCA stenosis were treated with PCI. Of these, 40 selected patients having undergone TRI were included in this study. RESULTS : The patients included 30 males and 10 females, with a mean age of 61+/-12 years. There were 28 cases (70%) involving coronary arteries other than the LMCA and 24 cases (60%) with bifurcation lesion involvement. In 28 cases (70%), a 6 Fr sized guiding catheter was used. No case required crossover from TRI to TFI due to procedural failure. During hospitalization, 2 patients who underwent primary PCI in the setting of STEMI died, but there were no other clinical events. CONCLUSION : In selected patients with LMCA disease, TRI can be a feasible and safe approach for PCI.
Angioplasty, Balloon, Coronary ; Catheters ; Constriction, Pathologic ; Coronary Disease ; Coronary Vessels ; Female ; Hospitalization ; Humans ; Male ; Percutaneous Coronary Intervention ; Radial Artery