No abstract available.
Chorion* ; Chorionic Villi Sampling* ; Chorionic Villi* ; Female ; In Situ Hybridization* ; Pregnancy

We found an error in our published article: Contents of footnote to the authors declare that they have no conflict of interset will be deleted.

No abstract available.
Humans

Gradual distraction on living tissues creates stress that stimulates growth and regeneration. Timing and rate of distraction are one of the major factors affecting callus distraction. Slow rate of distraction often led to premature consolidation of the lengthening bone, while rapid rate of distraction often resulted in undesirable change within lengthening bone. Since Dr. McCarthy reported the successful lengthening of mandible in hemifacial microsomia, most of craniofacial bone lengthening has been done at a rate of 1.0 mm per day. The purpose of this study is to present my experience of rapid and multidirectional distraction of mandible in hemifacial microsomia. I have performed distraction osteogenesis of mandible in 33 patients of hemifacial microsomia with an age of 2-9 years from November, 1995 to October 1997. A complete osteotomy was made at the angle of mandible posterior border of the ramus proximal to the osteotomy and two threaded wires were inserted aling the lower border of the body distal to the osteotomy. Long PennigMinifixator(Orthofix, Bussolengo, Italy) maintained the mandible in fixation for 4 days. Following this period, the device was lingthened serially 1 mm every 12 hours by turning the nut. After the period of active lingthening was complicated, the mandible was maintained in external fixation until the radiological consolidation of the bone was confirmed. According to a study protocol, photographs, cephalograms(lateral and frontal), and panoramic view of mandible were obtained preoperatively, just before the active lengthening, at the time of removal of the device, and at 6 months intervals thereafter. The amount of vertical distraction along the posterior border of the ramus was from 19 to 32 mm and horizontal distraction along the lower border of the body was from 3 to 18 mm. The total amount of distraction was from 25 to 47 mm. The period of rapid distraction was from 13 to 27 days. Following the period of rapid distraction the mandible was maintained in external fixation for an average of 8.5 weeks(ranging from 7 to 11 weeks). There was no preoperative complications, and the length of clinical follow-up tangles from 3 to 26 months. Early reconstruction with minimal morbidity of rapid and multidirectional mandibular distraction in the hemidacial microsomia was successful without relapse. Orthodontic treatment can begin as soon as possible after gradual distraction in order to establish normal dental occlusion.
Bone Lengthening ; Bony Callus ; Dental Occlusion ; Follow-Up Studies ; Goldenhar Syndrome* ; Humans ; Mandible* ; Nuts ; Osteogenesis, Distraction* ; Osteotomy ; Recurrence ; Regeneration

No abstract available.
Lymphoma, B-Cell, Marginal Zone*

PURPOSE: This study identifies accident sequences from the past accidents in order to help the risk analysis application to the external radiotherapy. MATERIALS AND METHODS: This study reviews 59 accidental cases in two retrospective safety analyses that have collected the incidents in the external radiotherapy extensively. Two accident analysis reports that accumulated past incidents are investigated to identify accident sequences including initiating events, failure of safety measures, and consequences. This study classifies the accidents by the treatments stages and sources of errors for initiating events, types of failures in the safety measures, and types of undesirable consequences and the number of affected patients. Then, the accident sequences are grouped into several categories on the basis of similarity of progression. As a result, these cases can be categorized into 14 groups of accident sequence. RESULTS: The result indicates that risk analysis needs to pay attention to not only the planning stage, but also the calibration stage that is committed prior to the main treatment process. It also shows that human error is the largest contributor to initiating events as well as to the failure of safety measures. This study also illustrates an event tree analysis for an accident sequence initiated in the calibration. CONCLUSION: This study is expected to provide sights into the accident sequences for the prospective risk analysis through the review of experiences.
Calibration ; Humans ; Retrospective Studies ; Risk Assessment

Urinalysis is the most convenient and important diagnostic tool for the kidney diseases. Abnormal urinary findings provide powerful information for the diagnosis of a kidney disease. There are several common urinary abnormalities without subjective symptoms : hematuria, proteinuria, and asymptomatic bacteriuria. There are many causes of hematuria : glomerulonephritis, interstitial nephritis, vascular diseases, cystic kidney disease, renal calculi, coagulation disorders, urinary tract infection, trauma, and tumors. It is essential to clarify the origin of hematuria by the use of diagnostic flow sheets. Despite all the diagnostic approaches, however, unexplained hematuria is found in 10~15% of subjects with hematuria. Periodic follow-up is recommended per 3 to 6 months for at least three years for them. The proteinuria of the glomerular origin is important for the progression of the renal diseases. We have to differentiate the proteinuria according to its origin and underlying systemic diseases including diabetes mellitus and hypertension. We also recommend a kidney biopsy for nephrotic range proteinuria for the diagnosis, treatment, and prognosis of the disease. Asymptomatic bacteriuria is define as a bacterial colony count above 105/ml in two consecutive urine cultures. Management is generally not recommended for the asymptomatic bacteriuria in elderly patients but recommended in pregnant women and diabetes mellitus patients. From our point of view, subjects showing urinary abnormalities, such as hematuria, proteinuria, and bacteriuria, must be kept under close surveillance.
Aged ; Bacteriuria ; Biopsy ; Diabetes Mellitus ; Diagnosis ; Female ; Follow-Up Studies ; Glomerulonephritis ; Hematuria ; Humans ; Hypertension ; Kidney ; Kidney Calculi ; Kidney Diseases ; Kidney Diseases, Cystic ; Nephritis, Interstitial ; Pregnant Women ; Prognosis ; Proteinuria ; Urinalysis ; Urinary Tract Infections ; Vascular Diseases

No abstract available.

No abstract available.
Asian Continental Ancestry Group ; Humans

No abstract available.
Korea*