目的 探讨45°半坐卧位对良性前列腺增生患者膀胱压力容积测定的影响。方法 按照入选标准和排除标准选取临床确诊为良性前列腺增生(Benign Prostatic Hyperplasia,BPH)患者。按照二阶段交叉设计的方法将入选患者随机分入A、B两组。A组患者先进行45°半坐卧位膀胱压力容积测定(Cystometry,CMG),再进行平卧位CMG,B组患者先进行平卧位CMG,再进行45°半坐卧位CMG。统计以下CMG参数:膀胱初始感觉容量、膀胱初始尿意容量、膀胱最大容量及逼尿肌过度活动发生率。结果 与平卧位相比,45°半坐卧位对膀胱初始感觉容量、膀胱初始尿意容量、膀胱最大容量的测定无影响,且能提高逼尿肌过度活动的检出率(45°半坐卧位37.21% vs.平卧位11.63%,P=0.006)。结论 45°半坐卧位能代替平卧位作为CMG的检查体位。

Objective To investigate influence of 45 degree semi-reclining position in cystometry in patients with benign prostatic hyPerplasia(BPH). Methods Patients with BPH were enrolled according to the inclusion and exclusion criteria. They were divided into two groups randomly by two stage cross-over design. Group A took the 45 degree semi-reclining position firstly then supine position, while group B used a reverse order.CMG parameters included volume of first sensation to void (FS), volume of first urge to void (FU), maximum cystometric capacity (MCC) and detrusor overactivity(DO). Results 45 degree semi-reclining position had no effect on volume of FS、volume of FU、MCC, and could increase the detection rate of DO(45 degree semi-reclining Position 37.21% vs. supine 11.63%,P=0.006). Conclusion 45 degree semi-reclining position may be used as a substitution for supine in FC.

目的 分析耳石症手法复位治疗后残余症状的特点及其相关危险因素。方法 收集2014年2月—2015年2月石景山医院神经内科诊治的198例耳石症患者,分析其临床表现,经手法复位治疗后,部分患者痊愈,部分患者残留不同类型及不同程度症状,随访3个月,观察残余症状特点、持续时间,分析其相关因素。结果 198例患者中,男78例(39.4%),女120例(60.6%),平均年龄(59.2±11.5)岁,病程3小时~10年,中位数4.8天。其中121例(61.2%)患者有后遗症状,如头部昏沉感、紧箍感、走路不稳,持续数天至数月。其中,155例患者完成随访3个月,残余头晕组平均年龄大于无头晕组,在残余头晕组中,女性多于男性。对残余头晕患者危险因素进行Logistic回归分析,治疗前病程长短是残余头晕症状的独立危险因素(OR=2.876,95%,CI 1.532~5.331,P=0.000);结论 耳石症手法复位后一半以上患者均可遗留头晕、头部昏沉感、紧箍感、走路不稳感,多在1~2个月左右逐渐改善,治疗前病程长短是治疗后残余症状的独立危险因素。

股骨转子间骨折是最常见的髋部骨折,内固定手术为其目前治疗的首选方式。头颈钉位置是评估手术效果和判断治疗预后的重要因素,合适的置钉位置有利于稳定骨折、加速康复以及改善预后。目前头颈钉位置最经典的评估方式为尖顶距（TAD）,但TAD至今仍存在较多争议。近年来提出的轴刀角、尖颈距离比、偏心距（ED）以及标准化TAD（STAD）为临床实践拓展了新视野。文章通过对上述头颈钉位置的评估方法及局限性进行文献综述,旨在为临床手术置钉时提供相应的参考。ED和STAD的提出,为未来人工智能评估头颈钉位置提供了可能。

Femoral intertrochanteric fracture is one of the most common hip fractures, and the internal fixation is the preferred treatment. The position of cephalic fixator is an important factor to evaluate the effect of operation and the prognosis of treatment. Tip-apex-distance（TAD）is the most classical method to evaluate the position of cephalic fixator, but it is still controversial. In recent years, the axis-blade angle,tip-neck distance ratio, eccentric distance（ED）and standardized TAD（STAD）have been proposed,though with limitations, they also provide a new perspective for clinical practice. In this study, we reviewed the literature on the evaluation of the position of cephalic fixator in order to provide the corresponding references and guidance for the clinical operation of internal fixation. Both STAD and ED may be the theoretical possibility of artificial intelligence evaluation of the position of cephalic fixator in the future.

       目的   探讨与分析实时图像引导系统对乳腺癌保乳术后放射治疗（放疗）摆位误差的影响。方法   选取安阳市肿瘤医院2021年9月—2023年12月收治的乳腺癌保乳术后108例患者为研究对象，按照随机信封抽签法把108例患者分为实时组54例与对照组54例。两组的放疗观察时间均为3个月，对照组给予热塑体模定位，实时组给予实时图像引导系统定位，记录两组的摆位误差与放疗不良反应发生情况。结果   实时组X轴、Y轴、Z轴方向的配准结果误差发生率分别为1.85%、7.41%、1.85%，均低于对照组的14.81%、22.22%、16.67%（χ ² =5.939，P=0.015；χ ² =4.696，P=0.030；χ ² =7.053，P=0.008）。实时组摆位纠正前X轴、Y轴、Z轴误差大于对照组（t分别为38.888、28.106、50.102，P＜0.05），摆位纠正后两组摆位误差对比差异无统计学意义（P＞0.05）。实时组放疗3个月期间的心脏平均受量、肺脏平均受量均少于对照组（t分别为49.942、13.996，P＜0.001）。实时组放疗3个月期间的急性放射性皮肤反应发生率为3.70%，对照组为16.67%，实时组低于对照组（χ ² =4.960，P＜0.05）。结论   实时图像引导系统在乳腺癌保乳术后放疗的应用可减少摆位误差，也能减少患者的心脏平均受量、肺脏平均受量，降低急性放射性皮肤反应发生率。

       Objective  To investigate and analysis the effects of image-guided radiation therapy on the positioning error of radiotherapy after breast conserving surgery for breast cancer．Methods  from September 2021 to December 2023，108 patients with breast cancer after breast conserving surgery in Anyang Cancer Hospital were selected as the study subjects．According to the principle of random envelope drawing，108 patients were divided into the real-time group of 54 patients and the control group of 54 patients．The observation time for radiotherapy in both groups was 3 months．The control group was given thermoplastic phantom positioning，while the real-time group was given image-guided radiation therapy positioning．The positioning errors and incidence of radiotherapy adverse reactions were recorded in both groups．Results  The error rates of registration results in the X-axis，Y-axis，and Z-axis directions of the real-time group were 1.85%，7.41% and 1.85%，respectively，which were significantly lower than the control group（14.81%，22.22% and 16.67%；χ ² =5.939，P=0.015；χ ² =4.696，P=0.030；χ ² =7.053，P=0.008）．The errors in the X-axis，Y-axis and Z-axis before the pendulum correction were greater than that in the control group（t=38.888，28.106，50.102，P＜0.05），and there were no statistically significant difference in positioning errors compared between the two groups after positioning correction（P＞0.05）．The average cardiac and lung uptake during the 3-month period of real-time radiotherapy in the group were significantly lower than those in the control group（t=49.942，13.996，P＜0.001）．The incidence of acute radiation-induced skin reactions during the 3-month period of real-time group radiotherapy was 3.70%，compared to 16.67% in the control group，the real-time group showed a significant decrease（χ ² =4.960，P=0.026＜0.05）．Conclusions  The application of image-guided  radiation therapy in radiotherapy after breast conserving surgery for breast cancer can reduce the positioning error，the average cardiac and pulmonary dose，and the incidence of acute radiation skin reaction．