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조재호,최종혁,양규현 대한골절학회 1998 대한골절학회지 Vol.11 No.2
We performed a preliminary study to evaluate the effect of ultrasound in canine osteotomy model. Both ulna shafts were osteotomized and one side was irradiated with low-energy pulsing ultrasound, 50mW/cm2, 1 MHz, 200 microsecond bursting sine wave for I5 minutes, 6 days a week. Effect on the fracture healing was evaluated by radiologic scoring system, amount of uptake of radioactive isotope, and time to union. Results were as follows: At postoperative 2 months, means of the radiologic healing score were 4.5 in the irradiated side and 2.5 on the control side (p=0.019). Mean isotope uptake in the irradiated side was 44.4 count and 33.8 count in the control side (p=0.028). Two nonunion developed on the control side, Mean time to union of eight dogs was 2.6 months in the irradiated side and 3.1 months on the control side. Based on the cumulative union rate curve, fracture healing was stimulated and union was obtained one month faster in the irradiated side than the control side.
조재호,이태석,고영관,오수명,Cho, Jae-Ho,Lee, Tae-Seok,Ko, Young-Gwan,Oh, Soo-Myung 대한소아외과학회 1996 소아외과 Vol.2 No.1
Acute pancreatitis(AP) in children is not common but can be associated with severe morbidity rates and its diagnosis is often delayed. Thus, reported mortality rates range from 0 to 78%. We have treated 26 patients with AP from 5 to 17 years of age over the past 17 years. We are intended to assess the relevance of the prognostic criteria used to assess severity of adult AP and to review the etiology, clilical presentation, diagnosis, and management of AP in children. The authors retrospectively reviewed 26 children with AP managed in Kyung Hee University Hospital from 1978 to 1995. Among 26 patients with AP, male were 12, and female were 14. And the mean age of patients was 11.8 years. In 9(34.6%), no definitive cause was identified. Common causes of AP were trauma(23.1%) and biliary tract disease(23.1%). Other etiologies were viral infection(15.4%) and post ERCP(3.8%). The presenting features were abdominal pain(92.3%), vomiting(61.5%), fever(19.2%), submandibular pain(11.5%), and abdominal mass(7.6%). Back pain was rare(3.8%). Abdominal ultrasonographic findings were abnormal in 10 of 16 patients(62.5%) and abdominal CT findings were abnormal for 9 of 9 patients(100%). Seventeen patients(65.3%) were managed conservatively, and nine patients(34.6%) required surgical treatment. There was no mortality. To evaluate the severity of disease, we used the Imrie prognostic criteria used to assess the severity in adult AP. The number of positive criteria was correlated to the duration of hospitalization(r2=0.91) but statistically insignificant(p>0.05). But, the number of positive criteria was correlated to the operative incidence(r2=0.93) and statistically significant(p<0.05). The common causes of AP in children were unknown origin(34.6%), trauma(23.1%), and biliary tract disease(23.1%). Ultrasonography and computed tomography were useful imaging tools of AP in children. The Imrie criteria used to evaluate the severity in adult AP were suspected to be valuable to assess the severity of AP in children.