Azone预处理对抗病毒药Ara-ADA穿透无毛小鼠皮肤的持续影响

本文用两个半池组成的扩散池测定4～6周无毛小鼠腹部皮肤用1-十二烷基氮杂环庚烷2酮(Azone)预处理24h后,对抗病毒药2′,3′-双乙酰阿糖腺苷(2′,3′-di-O-acetyl-3-βD arabinofuranosyl adenine简称Ara ADA)透过皮肤促进作用的持续效应。皮肤经Azone处理后,立即或分别测定经历4,5…8d后的穿透系数。结果表明,经Azone处理后的无毛小鼠皮肤可使Ara ADA的穿透系数提高44倍,皮肤经Azone处理一次后,药物透过皮肤的促进作用至少可持续8d,药物通过皮肤的扩散时滞明显缩短。     

Laparoscopic repair of traumatic bowel injury in children

Purpose

The aim of this study was to evaluate the laparoscopic repair of isolated intestinal injuries in children who sustain focal abdominal trauma.

Methods

A retrospective review was conducted of all patients 16 years and younger who required surgery for traumatic bowel injuries during a 5-year period at 2 university children's hospitals. The study population was composed of hemodynamically stable patients who sustained focal energy transfer to the abdomen and were diagnosed preoperatively with intestinal injury. Children sustaining multisystem injuries and gunshot wounds or who were hemodynamically unstable were excluded.

Results

Fifty hemodynamically stable children were explored for preoperatively documented intestinal injury sustained after focal abdominal trauma. Laparoscopy was used to repair intracorporeally gastrointestinal injuries in 8 children. Mean operating time, time to diet, and time to discharge after laparoscopic bowel repair compared favorably with patients managed by laparotomy. An additional 6 patients had a laparoscopic-assisted bowel resection or repair after exteriorization only of the ruptured intestine through a short extension of the nearest port site. No early (missed injury, wound infection, bleeding) or late (obstruction) complications resulted after laparoscopic repair.

Conclusions

Laparoscopic primary or assisted repair of injured bowel is an appropriate surgical option in hemodynamically stable children who sustain focal abdominal trauma and may be associated with a more prompt return of intestinal function and shorter hospital stay.     

Pseudoaneurysm and deep vein thrombosis complicating femoral osteochondroma: Multimodality imaging

A case of a femoral osteochondroma complicated by pseudoaneurysm and deep venous thrombosis is presented. Multimodality imaging contributed crucial information to allow successful diagnosis and preoperative planning.     

聚焦超声与低温等离子治疗后兔鼻黏膜形态学分析

目的 观察聚焦超声与低温等离子对鼻黏膜形态学的影响程度及意义.方法 运用聚焦超声技术,在设定的剂量参数下对兔鼻甲进行直线扫描;运用低温等离子射频消融术对免鼻甲进行处理,在1个月及3个月后对两种方法处理后兔鼻甲切片及正常兔鼻甲切片进行对比观察,通过大体形态、光镜下观察对两种治疗方法兔鼻黏膜组织形态学的改变进行比较.结果 两种方法处理后1个月及3个月后兔鼻甲在外观和色泽无明显改变,光镜下显示兔鼻黏膜上皮层完整;运用低温等离子射频消融术处理后兔鼻甲外观较正常缩小,色泽灰白,且有分泌物存在,光镜下显示兔鼻黏膜上皮层断裂,部分切片上皮层完全消失.结论 在设定参数下聚焦超声可不破坏鼻黏膜上皮,可使鼻黏膜黏液纤毛系统功能得以完全保留.     

Household Effects of School Closure during Pandemic (H1N1) 2009, Pennsylvania, USA

To determine the effects of school closure, we surveyed 214 households after a 1-week elementary school closure because of pandemic (H1N1) 2009. Students spent 77% of the closure days at home, 69% of students visited at least 1 other location, and 79% of households reported that adults missed no days of work to watch children.