Purpose: To analyze the causes and to prevent dislocations of the hip joint that occur in patients who underwent revisions of total hip arthroplasties by changing only the polyethylene liners and femoral heads, subsequent to primary total hip arthroplasties. Materials and Methods: We evaluated 28 patients who underwent acetabular component revisions of total hip arthroplasties subsequent to primary total hip arthroplasties. The average age of the patients was 55 years old and all 28 patients had operations through the posterolateral approach. In 17 of the cases, the acetabular cups, polyethylene liners, and femoral heads were changed; in 10 cases, just the polyethylene liners and femoral heads were changed; and in 1 case, only the polyethylene liner was changed. Results: We observed 7 cases of hip dislocations that occurred among a total of 28 cases after revisions of total hip arthroplasties. In all 7 cases, the polyethylene liners and femoral heads were changed, but not the acetabular cups. In additional, in all 7 cases of dislocation, the patients were non-compliant and started weight-bearing prematurely after revisions of the total hip arthroplasties Conclusion: We observed new dislocations in the 7 cases in which the polyethylene liners and femoral heads were changed. The main reasons were inadequate soft tissue tension and hip joint laxity. Therefore, it is necessary to increase the neck length, use elevated rim polyethylene liners, readjust the acetabular cups to their optimal positions, and apply hip abduction braces to patients early after revision of total hip arthroplasties in order to lessen the danger of dislocations.
Acetabulum* ; Arthroplasty ; Braces ; Dislocations* ; Head ; Hip ; Hip Dislocation ; Hip Joint ; Humans ; Neck ; Polyethylene ; Risk Factors* ; Weight-Bearing

Herpes simplex esophagitis can occur in those with normal immune function, but is more often seen in those who are immunocompromised. In one series, 5 percent of post-kidney transplant recipients had herpes esophagitis. We experienced a case of herpes simplex esophagitis, following renal transplantation in a 9 year old male. He complained of epigastric pain, nausea and blood-tinged vomiting. Endoscopic examination showed volcano ulcer, mucosal friability and multiple confluent ulcers covered by whitish exudates on elevated margin in the middle and lower esophagus. Microscopic findings revealed multinucleated giant cells, margination of chromatin, intense nonspecific inflammation and strong positive for herpes simplex virus immunohistochemical staining. Esophageal lesions and symptoms improved after acyclovir therapy.
Acyclovir ; Child* ; Chromatin ; Esophagitis ; Esophagus ; Exudates and Transudates ; Giant Cells ; Herpes Simplex* ; Humans ; Inflammation ; Kidney Transplantation ; Male ; Nausea ; Simplexvirus* ; Transplantation ; Ulcer ; Vomiting

To determine the perinatal mortality and morbidity of fetuses with absent end-diastolic velocities (AEDV) of the umbilical artery in severe pre-eclampsia and eclampsia, the outcome of 5 fetuses with AEDV was compared with that of 35 fetuses with positive end-diastolic velocities (PEDV). The study population comprised 38 cases of severe pre-eclampsia and 2 cases of eclampsia with structurally normal singletons, who had had umbilical artery Doppler velocimetry weekly from admission to delivery. The Doppler velocimetry result was not used for the clinical management. Perinatal death and neonatal morbidity from both groups were further examined in gestational age category to control the influence of preterm births. The incidence of AEDV of the umbilical artery Doppler velocimetry in severe pre-eclampsia and eclampsia was 12.5% (5/40). The AEDV group had a significantly higher incidence than the PEDV group in terms of ceasarean section due to fetal distress (60% : 17%), Apgar score < 7 at 5 minutes (60% : 14%), perinatal death (25% : 0%) and assisted mechanical ventilation (67% : 9%) both at 32-36 weeks. Time intervals from the detection of AEDV to delivery of live neonates varied from the day to 15 days. In conclusion, AEDV in the umbilical artery might be of clinical value in routine surveillance of pregnancies complicated by severe pre-eclampsia and eclampsia, and predict hypoxic fetal condition which needs operative interventions before or during labor and mechanical ventilation after birth.
Apgar Score ; Cesarean Section ; Dystocia ; Eclampsia* ; Female ; Fetal Distress ; Fetus ; Gestational Age ; Humans ; Incidence ; Infant, Newborn ; Maternal Death ; Mortality ; Parturition ; Parturition* ; Perinatal Mortality ; Pre-Eclampsia* ; Pregnancy ; Premature Birth ; Respiration, Artificial ; Rheology ; Trial of Labor ; Umbilical Arteries* ; Uterine Rupture

BACKGROUND: The purpose of the study was to investigate prospectively the relation of lipoprotein(a)[Lp(a)],apoproteins and serum lipid parameters to restenosis after percutaneous transluminal coronary angioplasyt(PTCA). METHODS: One hundred and forty-five patients who received successful PTCA were enrolled and their serum levels of lipids, apoproteins and Lp(a) were measured before PTCA. After 6 months of follow-up, the patients were reevaluated for the development of restenosis by coronary angiography, treadmill test or thallium scan. RESULTS: A total 137 patients could be followed. Restenosis occurred in 71 patients(52%). Clinical parameters(e.g. age, sex, hypertension, diabetes, smoking) and angiographic parameters(e.g. lesion site, type and degree of stenosis) were not significantly different between the group without restenosis and the group with restenosis. Lipid parameters and apoproteins were not associated with restenosis. Lp(a) and Lp(a) phenotype analysis showed no significant difference between the two gruops. CONCLUSION: Serum lipid parameters, apoproteins and Lp(a) concentration are not associated with restenosis after PTCA and cannot be used as predictios of restenosis.
Angioplasty, Balloon, Coronary* ; Apoproteins ; Coronary Angiography ; Exercise Test ; Follow-Up Studies ; Humans ; Hypertension ; Lipoprotein(a)* ; Phenotype* ; Prospective Studies ; Thallium

PURPOSE: The purpose of this study was to examine the significance of increased bone density according to whether bone grafts were applied using demographic data with Cone Beam Computed Tomography (CBCT) and to compare the bone densities between before and after implant prosthesis using the Hounsfield index. MATERIALS AND METHODS: Thirty-six randomly selected computed tomography (CT) scans were used for the analysis. The same sites were evaluated digitally using the Hounsfield scale with V-Implant 2.0(TM), and the results were compared with maxillary posterior bone graft. Statistical data analysis was carried out to determine the correlation between the recorded Hounsfield unit (HU) of the bone graft and implant prosthesis using a Mann-Whitney U test and Wilcoxon Matched-pairs test. RESULTS: The bone grafted maxillary posterior teeth showed an increase in the mean values from-157 HU to 387 HU, whereas non-grafted maxillary posterior teeth showed an increase from 62 HU to 342 HU. After implantation, the grafted and non-grafted groups showed significantly higher bone density than before implantation. However, the grafted group showed significantly more changes than the non-grafted group. CONCLUSION: Bone density measurements using CBCT might provide an objective assessment of the bone quality as well as the correlation between bone density (Hounsfield scale) and bone grafts in the maxillary molar area.
Bone Density ; Cone-Beam Computed Tomography ; Data Interpretation, Statistical ; Dental Implants ; Molar ; Prostheses and Implants ; Tooth ; Transplants

PURPOSE: The purpose of this study is to compare CO2 DSA and nonionic contrast media angiography in respect to the quality of the opacification of collaterals and incidence of side-effects in peripheral occlusive arterial disease. MATERIALS AND METHODS: Sixteen patients who were suspected to have peripheral occlusive arterial disease were performed angiography with nonionic contrast media and CO2 at the same location with the same catheter. The causes of the lesions were atherosclerosis(n=7) and Buerger's disease(n:9). CO2 DSA was compared with nonionic contrast media angiography in respect to the quality of image in the diagnosis of the lesions, opacifications of collaterals and side-effects. RESULTS: In atherosclerosis;quality of the images of CO2 DSA was same as that of nonionic contrast media angiography in 6 patients and was poor in 1 patient;opacifications of collaterals of CO2 DSA were same as that of nonionic contrast media angiography in 5 patients and was poor in 2 patients. In Buerger's disease;quality of the images of CO2 DSA was same as that of nonionic contrast media angiography in 2 patients and was poor in 7 patients;opacifications of collaterals of CO2 DSA were same as that of nonionic contrast media angiography in 1 patient and was poor in 8 patients. Leg pain was the only side-effect after CO2 injection occuring in 4 out of 16 patients. CONCLUSION: CO2 could be used as safe contrast media in patient with risk factors for nonionic contrast media and for diagnosis of the atherosclerosis in lower extremity. For the procedures such as vascular intervention reguiring large amount of contrast media CO2 could effectively replace nonionic contrast media.
Angiography* ; Atherosclerosis ; Catheters ; Contrast Media ; Diagnosis ; Humans ; Incidence ; Leg ; Lower Extremity* ; Risk Factors

STUDY DESIGN: A case report. OBJECTIVES: Lumbar burst fracture was treated with operation, which delayed recollapse of L1 and led to conus medullaris syndrome. SUMMARY OF LITERATURE REVIEW: After operation, conus medullaris syndrome causing by delayed recollapse is not frequently reported. MATERIALS AND METHODS: A 56-year-old male was admitted with lower back pain caused by a fall. Radiologic findings showed L1 burst fracture with about 42% of height loss. There was no neurologic deficit. Posterior fusion was performed using instrumentation. Five weeks after the operation, the patient was admitted for urination and defecation difficulty. Radiologic findings showed that the L1 had recollapsed with about 38% of height loss. To resolve the problem, anterior surgery was performed. RESULTS: Two years after surgery, bladder and anal sphincter dysfunction wasn't recovered. CONCLUSIONS: Lumbar burst fracture should be follow up carefully until union of the fracture because burst fracture leads to delayed recollapse.
Anal Canal ; Defecation ; Humans ; Low Back Pain ; Male ; Middle Aged ; Neurologic Manifestations ; Spinal Cord Compression* ; Urinary Bladder ; Urination

BACKGROUND: Tracheal tubes are different on the flexibility, material and bevel angle according to the manufacturers. These may affect the success rate of blind tracheal intubation through laryngeal mask airway (LMA). In addition, using straight-tip exchanger or curved-tip introducer, we tried to compare the success rate of tracheal tube insertion through LMA. METHODS: After receiving informed consents, 30 patients were enrolled. Blind tracheal intubation was tried with reinforced tracheal tube (M group), or one of two kinds of conventional tracheal tube (P group and B group). Tracheal tube was selected in random order and advanced into the trachea through LMA one by one. If all the three attempts was unsuccessful, we considered the blind tracheal intubation through LMA a failure. We also compared the success rate of blind tracheal insertion through LMA using straight-tip exchanger or curved-tip introducer. The first trial was performed on the neutral head position. The exchanger or introducer was rotated during the second trial. If the second attempt was unsuccessful, the exchanger- or intubator-guided intubation was performed on the sniffing position and, as a last and fourth trial, while mandible was being elevated with hands. RESULTS: Success rate of blind tracheal intubation through LMA was 50% (15/50) in group P and 36.7% (11/30) in group M, 33.3% (10/30) in group B (P=0.05). By using curved-tip introducer, intubation through LMA was successful in 80% (16/20), while it was successful only in 35% (7/20) via straight-tip exchanger. CONCLUSION: Blind tracheal intubation through LMA was dependent on the types of tracheal tube. Also, curved tip introducer may be a more valuable aid in performing blind tracheal intubation through LMA. Its use seems to be better technique than directly inserting tracheal tube through LMA.
Hand ; Head ; Humans ; Intubation* ; Laryngeal Masks* ; Mandible ; Pliability ; Trachea

BACKGROUND: Color Doppler echocardiography is sensitive in detecting mitral regurgitation and useful in quantitating its severity. The presence of an eccentric regurgitant jet suggests that regurgitation is caused by prolapsing or flail leaflet of mitral valve. Until recently the direction of regurgitant jet in mitral valve prolapse has been examined in a single(parasternal short axis view) or orthogonal plane using color Doppler echocardiography, and few in the apical rotation method of a transducer. The purpose of this study was to clarify the usefullness of the apical rotation method of a transducer in detection of the direction of mitral regurgitant jet and diagnosis of the sites of mitral valve prolapse. METHODS: Twenty four patients(8 men and 16 women, mean age:47.3+/-18.8 years) with mitral valve prolapse with eccentric regurgitant jet were examined by two-dimensional and color Doppler echocardiograply using conventional parasternal long and short axis views, and four apical longitudinal planes(four chamber, vertical, two chamber and transverse views) obtained by the apical retation method of a transducer. RESULTS: Thirty one regurgitant jets were detected in twenty four patients, eighteen patients had anterior, nine patints posterior, and three patients bi-leaflet(anterior and posterior) prolapse. In eighteen patients with anterior leaflet prolapse, ten had medial, eight had middle, three had lateral, and three had two portions(two, medial and middle; one, middle and lateral) prolapse. In nine patients with posterior leaflet prolapse, five had medial, three had middle, two had lateral, and one had two(medial and middle) scallop prolapse. CONCLUSION: Color Doppler echocardiography by the apical rotation method of transducer is useful in assessment of the site of prolapse in patients with mitral valve prolapse with eccentric regurgitation.
Axis, Cervical Vertebra ; Diagnosis ; Echocardiography* ; Echocardiography, Doppler, Color ; Female ; Humans ; Male ; Mitral Valve Insufficiency ; Mitral Valve Prolapse* ; Mitral Valve* ; Pectinidae ; Prolapse* ; Transducers*

The development of curvilinear EUS has enabled EUS-guided fine-needle aspiration of intra-abdominal mass lesions. With the introduction of interventional EUS, this technology has undergone several modifications in order to be applied to clinical medicine. One of the potential uses of interventional EUS is the EUS-guided local therapy of pancreatic tumors. Various treatment modalities such as fine-needle injection, radiofrequency ablation, photodynamic therapy, laser ablation, and brachytherapy have been tried under EUS guidance. Some of these modalities are being applied clinically. These methods for EUS-guided local therapy of pancreatic tumors will be reviewed in this article.
Animals ; Biopsy, Fine-Needle ; Catheter Ablation ; Disease Models, Animal ; Endosonography ; Humans ; Pancreatic Neoplasms/pathology/surgery/*therapy ; Photochemotherapy ; Photosensitizing Agents/therapeutic use