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981.
982.
目的以光镜和电镜观察液氮冷冻治疗慢性肥厚性鼻炎鼻粘膜的变化。方法对30例病程在10年左右慢性肥厚性鼻炎患者,于治疗前、第1次治疗后2周和第2次治疗后8~10周行鼻粘膜活体组织检查,进行光、电镜观察。结果冷冻前鼻粘膜上皮呈不同程度的鳞状化生和增厚。第1次冷冻后2周鼻粘膜上皮退化、脱落,上皮层明显变薄。第2次冷冻后8~10周鼻粘膜形成新的上皮层,可见较多柱状上皮细胞,并见微绒毛和短纤毛再生,较规整。结论冷冻治疗可改善鼻粘膜病变,从而改善和恢复鼻粘膜生理功能。 相似文献
983.
117例女性胸痛患者临床特点分析 总被引:2,自引:0,他引:2
目的分析女性胸痛患者的临床特征及冠状动脉造影的特点。方法对我院2000至2004年117例因胸痛入院行冠状动脉造影的女性患者的临床资料及冠状动脉造影结果进行回顾性分析。结果患者平均年龄(68.79±10.27)岁,确诊为冠心病78例,排除39例。典型临床症状的阳性预测值为68%,绝经期后合并高血压、糖尿病发病率高、脂蛋白(Lp)(a)水平较高、血脂、吸烟和家族史对冠心病的预测价值更有意义,围绝经期的4例冠心病均是糖尿病患者。78例冠心病患者中,单支病变18例(23%),2~3支病变57例(73%);简单斑块13例(17%),复杂斑块62例(79%),未见斑块3例(4%)。无创检查中常规心电图、运动试验、超声心动图的阳性预测值分别为74%、90%、95%,准确性分别为70%、59%、74%。结论女性冠心病多见于绝经后的中、老年人群,围绝经期人群中除非伴有糖尿病,通常发病率低,血管病变以多支和复杂斑块的血管病变为主。对并存高血压、糖尿病和Lp(a)水平较高的胸痛患者即使无创检查未发现异常也应尽早行冠状动脉造影检查以明确诊断。 相似文献
984.
985.
α-甘草酸对肾11β-羟基类固醇脱氢酶的抑制作用 总被引:1,自引:0,他引:1
目的观察α-甘草酸降低底物皮质醇的转化率;探讨α-甘草酸对肾脏11β-羟基类固醇脱氢酶(11β-OHSD2)活性和血清K 浓度的影响.方法运用微粒体酶分析技术,在离体和整体实验中观察在α-甘草酸作用下,11β-0HSD2对底物皮质醇转化率的变化,并测定整体实验中豚鼠的血清K 浓度.结果(1)离体实验:在α-甘草酸作用下,11β-0HSD2对底物皮质醇的转化率为38.80%,与阴性对照(71.80%)、β-甘草酸(21.50%)相比,差别均有显著性意义(均P<0.05).(2)整体实验:α-甘草酸中、高剂量均能明显降低豚鼠的血清KK 度(7.08mmol/L、5.34mmol/L,与阴性对照(8.83mmol/L、β-甘草酸(4.86mmol/L)相比,差别均有显著性意义(均P<0.05).结论α-甘草酸能抑制豚鼠肾脏11β-0HSD2活性,导致豚鼠血清K 浓度降低,但与β-甘草酸相比,作用较弱. 相似文献
986.
Li Hua Xiong Shu-tao Zhang Shou-xi Liu Shao-bin Zou Ping Xiang Jian-ping 《华中科技大学学报(医学英德文版)》1991,11(3):145-149
Summary Sepsis is a common and occasionally lethal complication of obstructive jaundice. The reasons for the increased susceptibility
to infection are not fully understood. This study was conducted to examine lymphocyte subsets and natural killer cells of
patients with obstructive jaundice in perioperative period. In these patients, when compared with normal controls, there was
a significant reduction in the percentage of Leu 4 (pan T lymphocytes), Leu 3a (T helper cells) and Leu 7 (natural killer
cells) before operation, and the immune suppression induced by surgical operation was more marked and persistent. 相似文献
987.
988.
989.
990.
Background:Patients’ recovery after surgery is the major concern for all perioperative clinicians. This study aims to minimize the side effects of peri-operative surgical stress and accelerate patients’ recovery of gastrointestinal (GI) function and quality of life after colorectal surgeries, an enhanced recovery protocol based on pre-operative rehabilitation was implemented and its effect was explored.Methods:A prospective randomized controlled clinical trial was conducted, patients were recruited from January 2018 to September 2019 in this study. Patients scheduled for elective colorectal surgeries were randomly allocated to receive either standardized enhanced recovery after surgery (S-ERAS) group or enhanced recovery after surgery based on pre-operative rehabilitation (group PR-ERAS). In the group PR-ERAS, on top of recommended peri-operative strategies for enhanced recovery, formatted rehabilitation exercises pre-operatively were carried out. The primary outcome was the quality of GI recovery measured with I-FEED scoring. Secondary outcomes were quality of life scores and strength of handgrip; the incidence of adverse events till 30 days post-operatively was also analyzed.Results:A total of 240 patients were scrutinized and 213 eligible patients were enrolled, who were randomly allocated to the group S-ERAS (n = 104) and group PR-ERAS (n = 109). The percentage of normal recovery graded by I-FEED scoring was higher in group PR-ERAS (79.0% vs. 64.3%, P < 0.050). The subscores of life ability and physical well-being at post-operative 72 h were significantly improved in the group PR-ERAS using quality of recovery score (QOR-40) questionnaire (P < 0.050). The strength of hand grip post-operatively was also improved in the group PR-ERAS (P < 0.050). The incidence of bowel-related and other adverse events was similar in both groups till 30 days post-operatively (P > 0.050).Conclusions:Peri-operative rehabilitation exercise might be another benevolent factor for early recovery of GI function and life of quality after colorectal surgery. Newer, more surgery-specific rehabilitation recovery protocol merits further exploration for these patients.Trial Registration:ChiCTR.org.cn, ChiCTR-ONRC-14005096 相似文献