目的 观察两种不同剂量的阿托品对右美托咪定心脏窦房结及房室结抑制作用的逆转效果。方法 健康志愿者20名,男12名,女8名,18～30岁。受试者先后给予右美托咪啶(1.5±0.5)μg/kg负荷量,持续泵注量(0.75±0.25)μg/(kg·h)进行试验观察。试验过程中如受试者心率＜(50±5)次/分,房室结前传2∶1小于150次/分的受试者随机进入0.5 mg阿托品剂量拮抗组(A₁),1 mg阿托品剂量拮抗组(A₁),每组10例。与泵注前(T₀),静脉泵注右美托咪定后(50±5)min(T₁),阿托品静脉推注后(10±5)min(T₂)经食道左心房调搏测定窦房结恢复时间(SNRT),校正窦房结恢复时间(CSNRT),房室结前传2∶1点阻滞点和房室结有效不应期(AVNERP)测量。结果 组内比较:泵注右美托咪定后T₁时点与基础值T₀时点比较两组窦房结及房室结功能受到抑制,SNRT 均延长(P<0.05),CSNRT比较无差异(P>0.05),房室结前传2∶1阻滞点降低(P<0.05), AVNERP延长(P<0.05)。阿托品使用后T₂时点的A₁组的各指标及A₂组的AVNERP恢复到基础水平(P>0.05),A₂组的SNRT、CSNRT均较T₀时点缩短(P<0.05),A₂组房室结前传2∶1阻滞点均较T₀时点增高(P<0.05)。组间比较:2组T₀时窦房结及房室结功能各指标比较均无差异(P>0.05),T₂时点A₂组SNRT、AVNERP较A₁缩短(P<0.01),T₂时点A₂组2∶1阻滞点均较A₁组增高(P<0.05)。结论 0.5 mg阿托品能逆转右美托咪定心脏窦房结及房室结抑制作用,1 mg阿托品增进右美托咪定影响下的窦房结及房室结传导功能。

Objective To investigate two different doses atropine make reverse effects on the function of sinus node and the atrioventricular node inhibiting action dexmedetomidine (Dex). Methods 20 healthy volunteers were included in the clinical trials aged 18~30 years (12 male, 8 female). The volunteers were administered with Dex at loading dose 1.5±0.5 μg/kg and then at 0.75±0.25 μg/(kg·h). During the trail, the volunteers who happened the minimal heart rate less than 50±5 bpm, atrioventricular node forward 2∶1 block point less than 150 bpm needed to randomly accept 0.5 mg(group A₁)or 1 mg(group A₂)atropine to antagonize(n=10). SNRT, CSNRT, AVN 2∶1 block point and AVNERP were recorded through TELAP. Results Intra-group comparison indicated functional parameters of SN and AVN were inhibited by Dexsat T₁. SNRT were prolonged (P<0.05), AVN 2∶1 block point were decreased (P<0.05),AVNERP were prolonged at T₁ compared with T₀(P<0.05). All indexes in group A₁ and AVNERP in group A₂ were back to basal level after using atropine at T₂(P<0.05). SNRT, CSNRT were shorted at T₂ compared with T₀ in group A₂(P<0.05). AVN 2∶1 block point had more increased at T₂ compared with T₀ in group A2(P<0.05). Inter-group comparison indicated no significant differences in functional parameters of SN、AVN at T₀(P>0.05). SNRT, AVNERP were shorted at T₂ in group A₂ compared with group A₁. AVN 2∶1 block point were increased at T2 in group A₂ compared with group A₁. Conclusion 0.5 mg atropine may reverse the function of SN and AVN that are inhibited by Dex. 1 mg atropine may increase functions of SN and AVN that are inhibited by Dex.

目的 观察同轴微切口超声乳化白内障术联合玻璃体腔注射雷珠单抗治疗糖尿病性黄斑水肿的临床疗效。方法 选择2014年7月—2016年11月在我院就诊的68例(72只眼)患有老年性白内障合并糖尿病性黄斑水肿患者,分为2组,治疗组(32例,34只眼)行同轴微切口超声乳化白内障术联合玻璃体腔注射雷珠单抗;对照组(36例,38只眼)单纯行白内障超声乳化摘除;观察指标包括术前、术后最佳矫正视力、眼压及黄斑中心凹视网膜厚度,观察时间为术前、术后1周、1月、3月、6月、12月。结果 术后两组最佳矫正视力与术前相比差异有统计学意义(P<0.01);术前及术后1周2组最佳矫正视力无差异,术后1月、3月、6月、12月治疗组最佳矫正视力均优于对照组;术前2组患者黄斑中心凹视网膜厚度相比无明显差异,术后各个时间点治疗组黄斑中心凹视网膜厚度均低于对照组,二者相比差异有差异性(P均<0.001);两组患者术前及术后眼压无差异(P<0.05)。结论 对老年性白内障合并糖尿病性黄斑水肿患者,术中联合玻璃体腔注射雷珠单抗,可减轻术后黄斑水肿,改善患者术后中、远期视力。

Objective To assess the safety and efficiency of combination of micro incision phacoemulsification (PHACO) surgery and intravitreal ranibizumab injection in patients with cataract and diabetic macular edema. Methods The selected 68 patients (72 eyes) with age-related cataract and diabetic macular edema were randomly divided into two groups: the PHACO and intravitreal Ranibizumab injection (treatment group, 32 cases, 34 eyes), and only PHACO (control group, 36 cases, 38 eyes) in our hospital from July 2014 to November 2016. Preoperative and postoperative best corrected visual acuity (BCVA), central macular thickness (CMT), and intraocular pressure (IOP) were recorded. The time points included preoperative day, 1 week, 1 month, 3 months, 6 months and 12months after surgery. Results Postoperative BCVA during the follow-up period was higher than the initial BCVA in both groups (P<0.01). There was no statistically significant difference between both groups in BCVA at pre-operation and 1 week after surgery. In the treatment group, the postoperative BCVA was significantly higher than the control group at 1 month, 3 months, 6 months and 12months after operation. The mean CMT in the treatment group was lower than the control group in all the follow-up time. There was no statistically significant difference in IOP between two groups preoperatively and postoperatively during the follow-up period (P>0.05). Conclusion Additional intravitreal ranibizumab injection after PHACO surgery reduced macular edema and preserved this improvement in the mid-and-long term of BCVA.

目的 研究血清胃蛋白酶原(PG)、胃泌素17(G-17)水平和HP感染与慢性萎缩性胃炎(CAG)和肠上皮化生的相关性。方法 连续选择2016年6月—2017年6月于我院诊断慢性非萎缩性胃炎60例,CAG 40例和肠上皮化生40例,比较患者血清PGI、II和PGI/II,G-17水平以及HP阳性感染率。结果 CAG和肠上皮化生患者PGI和PGI/II低于非萎缩性胃炎患者,而PGII水平升高,G-17水平和HP阳性感染率也增加,差异均有统计学意义(P＜0.05)。结论 血清PG、G-17水平和HP感染是CAG和肠上皮化生的重要机制。

Objective To study correlation in serum pepsinogen(PG),gastrin 17(G-17) levels and helicobacter pylori(HP) infection and chronic atrophic gastritis(CAG), intestinal metaplasia. Methods A total of 60 cases as non-CAG,40 of CAG and other 40 of intestinal metaplasia from June 2016 to June 2017 were consecutives enrolled, then to compare differences of serum PGI,II,PGI/II,G-17 levels, HP infection positive rate. Results The PGI and PGI/II values in patients with CAG and intestinal metaplasia were both lower than non-CAG patients, while PGII level got more,G-17 level and HP infection positive rate were higher too(P＜0.05). Conclusion The expressions of serum PG,G-17 and HP infection may be the important mechanism to CAG and intestinal metaplasia.

目的 探讨中药吴茱萸治疗术后早期炎性肠梗阻的临床疗效,并探讨其应用价值。方法 将50例术后早期炎性肠梗阻患者随机分为治疗组(吴茱萸封包+常规西药治疗)和对照组(常规西药治疗),观察比较腹胀、腹痛、便秘、呕吐等临床表现、腹平片结果;对比分析2组患者腹胀缓解时间、肠鸣音恢复时间、排气排便时间、胃液引流量。结果 ①治疗组治愈率80.8%,高于对照组41.7%,有差异(P＜0.01);②治疗组腹胀缓解、肠鸣音恢复、肛门排气排便时间及24 h胃液引流量均较对照组缩短,差异有统计学意义(P＜0.05)。结论 吴茱萸封包穴位外敷能显著提高术后早期炎性肠梗阻临床疗效。

Objective To explore the clinical curative effect of Wuzhuyu in treatment of early inflammatory bowel obstruction and its application value. Methods 50 cases of early inflammatory bowel obstruction were randomly divided into the treatment group (Wuzhuyu packet+conventional western medicine treatment) and the control group (routine western medicine treatment), to observe the results of abdominal distention, abdominal pain, constipation, vomiting. The time of abdominal distension of the two groups, the recovery time of the bowel sound, the time of exhaust defecation and the drainage of gastric juice were compared and analyzed. Results ① The cure rate of treatment group 80.8% was higher than the control group of 41.7%, and the difference was statistical significant (P<0.01);② the time of abdominal distention of the treatment group, the recovery of the intestinal singing tone, the time of exhaust defecation and the drainage of the gastric juice were shortened than that of the control group, and the difference was statistical significant (P< 0.05). Conclusion The clinical effect of the treatment of early postoperative inflammatory bowel obstruction may be significantly improved by Wuzhuyu closure.

目的 观察平胃散联合耳穴治疗单纯性肥胖的临床疗效及其对血清神经肽Y(Neuropeptide Y,NPY)和瘦素(Leptin,LP)水平的影响。方法 64例单纯性肥胖患者,采用数字表法随机分为治疗组33例和对照组31例。治疗组予口服平胃散免煎颗粒配合耳穴治疗,对照组予口服奥利司他胶囊治疗,疗程4周。观察治疗前后体质量、体质量指数(bodymass index,BMI)、体脂百分比(Fat%,F%)、腰臀比(Waist Hip Ratio,WHR)、NPY、LP的变化。结果 治疗后,治疗组和对照组体质量、BMI、F%、WHR、相关疾病的危险度均下降(P＜0.001)。比较治疗前后体质量、BMI、F%、WHR差值,治疗组下降均比对照组明显(P＜0.01、P＜0.001)。治疗组临床疗效优于对照组(P＜0.05)。治疗组和对照组血清NPY、LP水平均下降(P＜0.001),且治疗组较对照组下降(P＜0.001)。结论 平胃散联合耳穴有较好的减肥作用,其机制可能是通过降低血清中NPY、LP含量。

Objective Clinical observation of Pingwei Powder combined with auricular point therapy in treating simple obesity and the effect on serum NPY and leptin Levels. Methods 64 cases of simple obesity patients were randomized into treatment group(33 cases) and control group(31 cases). The treatment group was given Pingwei Powder combined with auricular point therapy.The control group was given Orlistat capsules. After being treated for 4 weeks, body weight, bodymass index(BMI), fat% (F%), waist hip ratio (WHR),neuropeptide y (NPY) and leptin(LP) were determined. Results After post-treatment in treatment group and control group, body weight, BMI, F%, WHR, the risk of related diseases all decreased (P＜0.001), The body weight, BMI, F%, WHR before and after treatment were lower than those in the control group(P＜0.01, P＜0.001). The clinical efficacy of the treatment group was better than that of the control group(P＜0.05). Serum NPY and LP levels in treatment group and control group were decreased (P＜0.001), and that the treatment group were lower than of the control group (P＜0.001). Conclusion Pingwei Powder combined with auricular point therapy have better in weight loss, which is possibly by way of reducing serum NPY, LP Levels.

目的 探讨应用三维斑点追踪技术(3D-STI)评价冠心病患者左前降支冠状动脉支架置入(PCI)术前、术后左室局部收缩功能。方法 对30例接受左前降支PCl术的患者分别于术前、术后3～5天,术后3个月进行常规及三维超声心动图检查,获得患者左前降支冠状动脉供血的7个心肌节段(即前壁基底段、前间隔基底段、前壁中间段、前间隔中间段、前壁心尖段、前间隔心尖段及心尖帽)的收缩期纵向应变、径向应变、圆周应变及面积应变,分析冠状动脉支架植入术前、后各参数的变化规律。结果 PCI术后3～5天5/7节段纵向应变(前壁基底段、前壁中间段、前间隔基底段、前间隔中间段、前壁心尖段)、3/7节段面积应变(前壁基底段、前壁中间段、前间隔中间段)、3/7节段圆周应变(前壁基底段、前间隔基底段、前壁中间段)及2/7节段径向应变(前间隔基底段、前壁中间段)较术前相应心肌节段升高,差异有统计学意义(P＜0.05),PCI术后3个月左前降支供血各心肌节段纵向、圆周、径向及面积应变较术前、术后3～5天均升高,差异有统计学意义(P＜0.05)。结论 3D-STI能够早期评价冠心病患者左前降支冠状动脉PCI治疗前后左室局部收缩功能的改善,为临床早期评价PCI疗效及后续治疗提供诊断依据。

Objective To evaluate the left ventricular regional systolic function before and after left anterior descending coronary artery stent implantation (PCI) using three-dimensional speckle tracking imaging (3D-STI) in patients with coronary artery disease. Methods 30 patients who received left anterior descending PCl were underwent routine and three-dimensional echocardiography before and after 3~5 days, 3 months to obtain longitudinal strain(LS), radial strain(RS), circumferential strain(CS)and area strain(AS) of the seven myocardial segments(BA,BAS,MA,MAS,AA,AS,A ),which accepted blood from the left anterior descending coronary artery. We analyzed the changes of the parameters before and after the coronary stent implantation. Results The 5/7 segment of the longitudinal strain(BA,MA,BAS,MAS,AA), 3/7 segment of area strain(BA,MA,MAS), 3/7 segment of circumferential strain (BA,BAS,MA)and 2/7 segment of radial strain (BAS,MAS)at 3~5 days after PCI were higher than that before the operation. The difference was statistically significant (P＜ 0.05). The longitudinal, circumferential, radial and area strain of the left anterior descending branch at 3 months after the operation were higher than that before and 3~5 days after the operation. The difference was statistically significant (P＜ 0.05). Conclusion 3D-STI may early evaluate the improvement of left ventricular regional systolic function before and after coronary artery PCI treatment in patients with coronary heart disease, and provide a basis for early clinical evaluation of PCI effect and follow-up treatment.

目的 探讨高压氧对FVB小鼠旷场行为的影响。方法 对9只4周龄高压氧组FVB小鼠进行2个疗程共21天高压氧干预;对13只4周龄对照组FVB小鼠不做任何处理,正常饲养。21天后对2组小鼠进行旷场实验,观察高压氧对FVB小鼠旷场行为的影响。结果 高压氧组小鼠在中央区停留时间(3.73±3.69,17.97±6.82,t=-5.564,P=0.000)和运动路程较对照组小鼠减少(189.65±199.32,525.67±244.22,t=-3.298,P=0.040),在外周区停留时间增加(296.07±3.69,281.79±6.79,t=5.597,P=0.000);进入中央区、外周区次数及穿越各区总次数都减少(3.11±3.10,8.20±4.80, t=-2.770,P=0.014;3.11±3.10,9.10±4.79,t=-3.264,P=0.005;6.22±6.20,17.30±9.59,t=-3.018,P=0.008);2组小鼠总路程和平均速度无差异(8766.57±3362.90,8320.47±1692.47, t=0.359,P=0.726;73.05±28.02,69.34±14.10,t=0.359,P=0.726)。结论 高压氧改变FVB小鼠的旷场行为的表型,使小鼠趋避性增加,对环境的认知能力及焦虑程度增强,探索性下降。

Objective To explore the effect of hyperbaric oxygenation(HBO)on behaviors of FVB mice in the open field test. Methods 9 mice of four-week-old in the HBO group were treated with hyperbaric oxygenation for a total of 21 days during two courses while 13 control mice of four-week-old did not do any treatment. After 21-day normal breeding, the mice of two groups were tested with open field test. Then, researchers observed the effect of hyperbaric oxygenation on mice behaviors after open field test. Results Compared to 13 control mice, residence time (3.73±3.69,17.97±6.82,t=-5.564,P=0.000) and the range of movement (189.65±199.32,525.67±244.22,t=-3.298,P=0.040)in central region decreased while the residence time in external region increased (296.07±3.69,281.79±6.79,t=5.597,P=0.000). The times of entering the central region and external region and crossing both of the regions decreased (3.11±3.10,8.20±4.80, t=-2.770,P=0.014;3.11±3.10,9.10±4.79,t=-3.264,P=0.005;6.22±6.20,17.30±9.59,t=-3.018,P=0.008). There was no difference in the total range of movement and the average velocity (8766.57±3362.90,8320.47±1692.47, t=0.359,P=0.726;73.05±28.02,69.34±14.10,t=0.359,P=0.726). Conclusion Hyperbaric oxygenation may change the behaviors of FVB mice in open field test to enhance its phobotaxis, anxiety degree and the cognitive ability in environment and inhibiting its exploration ability.

随着时代的发展,医学模式更具综合性,预防医学专业特性不仅体现其医学范畴,其综合性特点日益突出。因此预防医学专业医学生综合素质及创新能力的培养显得愈发重要。为了提高预防医学学生的综合素质及创新能力,我们从预防医学理论教学及实验教学开展了教学改革探讨。

目的 通过评估非直属附属医院临床教学质量的影响因素,探讨保障非直属附属医院同质化教学的方法。方法 将实习同学分为院校组和混合组两组,运用德尔菲法调查法对非直属附属医院临床教学过程中所遇到的困难进行分析,并提出教学改革的意见和评价。结果 得出的调查结论对教师、学生、医院教学管理人员和学校教学管理人员都提出了更高的要求,可以为达到同质化教学提供参考。结论 有针对性的开展临床教学工作,变被动教学为主动的教与学,使临床教学达到同质化,从而达到更佳的教学效果。

Objective To explore the methods of guaranteeing homogeneity teaching in Non-affiliated hospitals by assessing the factors affecting the quality of clinical teaching in Non-affiliated hospitals. Methods Divide the students into two groups:college group and mixed group,to meet the process of clinical teaching in Non-affiliated hospitals in difficulty were analyzed by using the Delphi survey method, and put forward opinions and evaluation. Results the survey findings put forward higher requirements for teachers, students, hospital teaching administrators and school teaching administrators, which can provide references for achieving homogeneity teaching. Conclusion targeted clinical teaching should be carried out to change passive teaching into active teaching and learning, so that clinical teaching can be homogenized, so as to achieve better teaching effect.

目的 分析全科医学教学中应用第三方满意度调查,结合学生需求的实践效果。方法 2016年3—12月接收全科医学学生者60例,按照常规方法进行,2017年3—12月全科医学学生62例,教学中应用第三方满意度调查结合学生需求方法,观察教学效果。结果 第二年时,学生期末考试总成绩、病例题成绩、实习报告成绩,课外自学时间、利用网络自学时间、与他人讨论学习时间,教学效果总体评分、课间实习评分均高于第一年,差异有统计学意义(P＜0.05)。结论 全科医学教学中应用第三方满意度调查结合学生需求方法后,可有效的提升教学效果,增强学生的自学能力及自学意识。

Objective To analyze the practical effect of applying the third party satisfaction survey to the needs of the students in the teaching of general medicine. Methods From March 2016 to December 2016, 60 cases of general practice medical students were enrolled. According to the routine method, 62 cases of general medical students from March 2017 to December 2017 were selected. Third party satisfaction survey and student demand method were applied in teaching, and the teaching effect was observed. Results In th second year, students' final exam scores, the total score, case questions internship report scores, extracurricular self-study time, self-study time, learning time, using the network to discuss with othersthe teaching effect of practice during the total score, all above were higher than the first year, there was significant difference (P<0.05). Conclusion The application of third party satisfaction survey combined with students' needs method in general practice teaching may effectively improve teaching effect; enhance students' self-learning ability and self-learning consciousness.