Purpose : To compare the clinical results of one-piece Acryl IOL C160 (Opthalmed, USA) with those of three-piece Acryl IOL AcrySof (MA60BM, Alcon, USA) in complicated cataracts. Methods : In one eye of 30 patients with complicated cataracts, Acryl-C160 IOL was implanted and AcrySof IOL in the other eye. The degrees of anterior capsular fibrosis and posterior capsular opacification together with IOL decentration were evaluated for 12months prospectively. Results : In 9 of 30 eyes with Acryl-C160 IOL, significant fibrosis of anterior capsule was seen as early as 1 month postoperatively. At 12 months, 15 eyes had more than grade 3 of capsular fibrosis. Five eyes had severe contraction of IOL haptic and one eye had significant IOL degradation to be exchanged. On the contrary, 2 of 30 eyes implanted with AcrySof IOL had moderate degree of capsular fibrosis. Conclusions : In complicated cataracts, Acryl-C160 IOL developed higher incidence of postoperative complications due to the inflammation and poor memory function of IOL haptic. The type and design of IOL haptic together with the function of IOL optic should be considered in selecting the IOLs best fitted in complicated cataracts.
The objective of this study was to conduct a numerical analysis of a compressor dehumidifier while focusing on the dehumidification performance. Even for those large applications in condensation, current researches have been confined only to fundamental aspect of condensation and only a few studies touched the real application of dehumidifier. This study’s numerical model was applied to a real compressor dehumidifier, which was an extended works of our previous ones dealing with fluid flow and heat transfer without condensation. The fluid film model was used and the validity of the numerical model was thoroughly examined with two cases, i.e., a simple channel and fin-tube heat exchanger. The numerical model in this study showed reasonable agreement with experiment and a parametric study with number of fins and flow rate were conducted.
Intrapancreatic accessory spleen is a benign lesion that mimics hypervascular or cystic pancreatic neoplasm. A comprehensive clinicopathologic analysis has not yet been reported.We described the clinicopathologic characteristics of 12 cases of pathologically proven intrapancreatic accessory spleen, among which 6 had internal epidermoid cysts. Immunohistochemistry was done to clarify the origin of epidermoid cysts.Most cases were incidentally detected in young adults. Two-thirds of cases with intra-lesional cysts showed elevated serum carbohydrate antigen 19-9 levels. Radiologically, heterogeneously enhancing a solid portion similar to the spleen was a helpful, but not convincing, feature. Grossly, a well-circumscribed dark red mass with or without cysts in the pancreatic tail was characteristic. Microscopically, small foci of pancreatic tissue were embedded within the splenic tissue. Epidermoid cysts consisted of modified squamous epithelium, some of which had intracellular mucin. Cytologic smears showed large aggregates of benign spindle cells that were reactive against CD8. Immunohistochemical staining of the cystic epithelium suggested its pancreatic ductal origin.Intrapancreatic accessory spleen with or without epidermoid cyst should be considered as differential diagnoses when well-enhanced solid or cystic tumors are found in the pancreatic tail. Radiologic suspicion and preoperative aspiration or biopsy might minimize the need for unnecessary surgery.
Various methods are being studied to meet the demand for heat energy for cooling and heating. Energy utilization methods using adsorption and desorption have the advantage of being eco-friendly and have been actively studied recently. In particular, they have a higher energy density than storage system using sensible heat or phase change of water. In addition, research is being conducted regarding energy storage with small energy loss, despite long-term storage. However, driving conditions and performances are different depending on the adsorption pair and necessitate further investigation before commercialization. Although studies on the components and shapes of adsorption beds have been actively conducted worldwide, research focusing on the outlet temperature of hot water discharged from the storage system is still insufficient. Therefore, in this study, we identified how various driving conditions of the system affect the effective energy density and outlet temperature of the bed. Our findings revealed that the effective energy density and outlet temperature of the bed were higher since the evaporator temperature and inlet temperature were higher and the flow rate was lower. In addition, in case of same flow rate, the results in series conditions were better than in parallel.
유미복수는 복강이나 후복강의 림프액 흐름에 지장을 줄 수 있는 다양한 질환과 조건에 의해 유미가 복강 내 축적되는 매우 드문 질환이다. 산부인과 영역에서는 복강이나 골반의 방사선 치료나 대동맥주변 림프절절제술 후 발생한 유미복수 몇 예가 보고 되기도 했으나 골반림프절절제술만으로 유미복수가 발생한 예는 극히 드물다. 수술 손상으로 발생한 대부분의 유미복수는 식이치료로 완치될 수 있으나 지속적인 단백질과 림프구의 소실이 있을 경우에는 심각한 영양 및 면역과 관련된 문제를 초래할 수 있다. 본 저자들은 자궁경부암 병기 Ib1으로 근치자궁절제술과 양측 골반림프절절제술 후 발생한 유미복수 1예를 경험하였고, 금식과 저지방 식이로 성공적으로 치료하였기에 이를 간단한 문헌고찰과 함께 보고하는 바이다.
OBJECTIVES: The purpose of this study was to determine whether the choice for performance of endoscopic retrograde pancreatography (ERP) could be tailored to findings on computed tomography (CT) in patients with suspected autoimmune pancreatitis (AIP). METHODS: Eighty-four AIP patients and 73 pathology-proven pancreatic cancer patients from a prospectively maintained database were retrospectively included. Computed tomography and ERP images were reviewed in consensus by 2 blinded radiologists. The diagnostic performance of CT alone and combined use of CT and ERP (CT-ERP) were compared. RESULTS: The area under the receiver operating characteristic curve of CT-ERP was significantly greater than that of CT alone (0.97 vs 0.87, P < 0.001). When patients with AIP were divided into 2 subgroups according to CT features (typical vs atypical), 24 (69%) of 35 AIP patients with atypical CT findings were correctly diagnosed with AIP at CT-ERP and received benefits from additional ERP. Endoscopic retrograde pancreatography had little added benefit in patients with typical CT findings for AIP (n = 49), because no alternative diagnoses were established after ERP. CONCLUSIONS: In patients with suspected AIP, the decision to perform ERP could be tailored to findings on CT.
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