A Reproducible Approach of Preparing High-Quality Overdoped Bi_2Sr_2CaCu_2O_(8+δ) Single Crystals by Oxygen Annealing and Quenching Method

We report a reproducible approach in preparing high-quality overdoped Bi2 Sr2 CaCu2 08＋δ （Bi2212） single crystals by annealing Bi2212 crystals in high oxygen pressure followed by a fast quenching. In this way, high-quality overdoped and heavily overdoped Bi2212 single crystals are obtained by controlling the annealing oxygen pressure. We find that, beyond a limit of oxygen pressure that can achieve most heavily overdoped Bi2212 with a Tc N63 K, the annealed Bi2212 begins to decompose. This accounts for the existence of the hole-doping limit and thus the Tc limit in the heavily overdoped region of Bi2212 by the oxygen annealing process. These results provide a reliable way in preparing high-quality overdoped and heavily overdoped Bi2212 crystals that are important for studies of the physical properties, electronic structure and superconductivity mechanism of the cuprate superconductors.

Treatment of Single Level Lumbar Spondylolisthesis with Lumbar Interbody Fusion via Oblique Lateral Approach (OLIF)

Objectives: To investigate the effect of lumbar interbody fusion via the oblique lateral approach (OLIF) in the treatment of single level lumbar spondylolisthesis. Methods: Retrospective analysis was made on 32 cases of single level lumbar spondylolisthesis treated by lumbar interbody fusion via the oblique lateral approach from July 2020 to July 2021. 14 males and 18 females;the age was (66.5 ± 11.5) years (55 - 82 years). 1) The operation time, intraoperative blood loss and complications were recorded;2) the scores of visual analog scale. VAS and Oswestry disability index (ODI) of low back pain and lower limb pain were collected before operation and at the last follow-up;by observing the imaging data, the height of the intervertebral space, the anterior convex angle of the intervertebral space, the anterior convex angle of the lumbar spine, the sagittal diameter of the dural sac and the spondylolisthesis were measured. Results: All patients successfully completed the operation, the average operation time was (103.9 ± 21.1) min, the average intraoperative bleeding volume was (72.3 ± 16.4) ml. There was no vascular injury during the operation, no infection occurred in all surgical incisions, and Class I/A healing was achieved. The VAS scores of low back pain and leg pain before operation and at the last follow-up were lower than those before operation, and the difference was statistically significant (P < 0.05);the ODI at the last follow-up was lower than that before operation, and the difference was statistically significant (P < 0.05). At the last follow-up, the height of intervertebral space, the height of intervertebral foramen and the sagittal diameter of dural sac were greater than those before operation, with statistically significant differences (P < 0.05);the spondylolisthesis rate at the last follow-up was lower than that before operation, with a statistically significant difference (P < 0.05). Left thigh surface numbness occurred in 2 cases (6.3%) and disappeared after 1 week;Hip flexion weakness occurred in 1 case (0.03%), which recovered after 12 days;there were no complications such as retroperitoneal hematoma, ureteral injury, retrograde ejaculation, intestinal and lumbar plexus injury. Conclusion: The early clinical effect of OLIF in the treatment of single level lumbar spondylolisthesis is significant. This surgical method is minimally invasive, safe and effective, which can significantly reduce the amount of intraoperative bleeding and reduce the risk of postoperative complications. Its main working principle is to make the annulus fibrosus, posterior longitudinal ligament and ligamentum flavum shrink and recover the height of the intervertebral space through decompression, loosening and stretching of the intervertebral space, so as to achieve the reduction of the slipped vertebral body, increase the height of the intervertebral foramen Enlarge the spinal canal volume and eliminate dynamic compression to play an indirect decompression role, improve the symptoms of low back and leg pain, and reconstruct the stability of the spine through interbody fusion.

Modified surgical techniques in total en bloc spondylectomy for thoracic and lumbar tumors with a single posterior approach

Objective To investigate the operation key points,instrument improvement and shortterm effects in total en bloc spondylectomy (TES) via a single posterior approach for thoracic and lumbar tumors.Methods A series of modified

Laparoendoscopic single site,laparoscopic or open surgery for adrenal tumors:Selecting the optimal approach

Numerous surgical modalities are available to treat adrenal lesions. Minimally-invasive approaches for adrenalectomy are indicated in most circumstances, and new evidence continues to be accumulated. In this context, current indications for open surgical adrenalectomy(OS-A), minimally-invasive adrenalectomy(MI-A), and laparoendoscopic single-site adrenalectomy(LESS-A) remain unclear. A comprehensive Englishlanguage literature review was performed using MEDLINE/Pub MED to identify articles and guidelines pertinent to the surgical management of adrenal tumors. A comprehensive chart review was performed for three illustrative cases. Clinical recommendations were generated based on relevant literature and the expertise of the investigator group. MI-A offers advantages over OS-A in properly selected patients, who experience fewer complications, lower blood loss, and shorter hospital stays. Robot-assisted laparoscopic and retroperitoneoscopic adrenalectomy may offer advantages over transperitoneal surgery, and LESS-A may be an even less-invasive option that will require further evaluation. MI-A remains the surgical treatment of choice for most adrenal lesions. Tumor size and stage are the primary indications for selecting alternative treatment modalities. OS-A remains the gold standard for large tumors(> 10 cm) and suspected or known advanced stage malignancy. LESS-A appears to be an appropriate initial approach for small tumors(< 4-5 cm), including pheochromocytoma and isolated adrenal metastases.

Single atom‐based catalysts for electrochemical CO_(2) reduction

Electrochemical CO_(2) reduction reaction(CO_(2)RR),powered by renewable energy,emerges as a promising approach against environmental issues and energy crisis by converting CO_(2) into val‐ue‐added chemicals.Single atom catalysts(SACs)with isolated metal atoms dispersed on supports exhibit outstanding performance for CO_(2) electroreduction,because of their strong single at‐om‐support interactions,maximum metal utilization and excellent catalytic activity.However,SACs suffer from agglomeration of particles,low metal loading,and difficulty in large‐scale production.In addition,molecular catalysts as another single atom‐based catalyst,consisting of ligands molecules connected to metal ions,exhibited similar metal‐nitrogen(M‐N)active centers as that in met‐al‐nitrogen‐carbon(M‐N‐C)SACs,which were highly active to CO_(2) reduction due to their well‐defined active sites and tunability over the steric and electronic properties of the active sites.Nonetheless,molecular catalysts are challenged by generally moderate activity,selectivity and sta‐bility,poor conductivity and aggregation.Many works have been devoted to overcoming these is‐sues of SACs and molecular catalysts for efficient CO_(2)RR,but only limited reviews for systematic summary of their fabrication,application,and characterizations,which were highlighted in this review.Firstly,we summarize recent advanced strategies in preparing SACs for CO_(2)RR,including wet‐chemistry approaches(defect engineering,spatial confinement,and coordination design),other synthetic methods and large‐scale production of SACs.Besides,electrochemical applications of SACs and molecular catalysts on CO_(2)RR are discussed,which involved the faradaic efficiency and partial current density of the desired product as well as the catalyst stability.In addition,ex‐situ and in‐situ/operando characterization techniques are briefly assessed,benefiting probing the active sites and understanding the CO_(2)RR catalytic mechanisms.Finally,future directions for the devel‐opment of single atom‐based catalysts(SACs,molecular catalysts)are pointed out.

Effectiveness of Bilateral Pulmonary Artery Banding in Patients with Hypoplastic Left Heart Syndrome and Congenital Heart Defects with a Functional Single Ventricle: A Single-Center Retrospective Study

Background:Bilateral banding of the branches of the pulmonary artery in patients with hypoplastic left heart syndrome(HLHS)and other duct dependent critical neonatal heart malformations can significantly reduce the incidence of severe complications in the postoperative period,especially in severely unstable patients.In our study we compared different surgical techniques of bilateral pulmonary artery banding(PAB)in respect to their success in balancing systemic and pulmonary blood flow.Methods:We included 44 neonates with a HLHS and congenital heart diseases(CHD)with a functional single ventricle underwent a hybrid operation:bilateral PAB and patent ductus arteriosus stenting.The hybrid surgery for method No.1 is performed as a one-stage procedure,together with patent ductus arteriosus(PDA)stenting.After median sternotomy,two Gore-Tex 1–2 mm wide bands with a diameter of 3–3.5 mm are put.When we apply method No.2 then the thread is used to create bands.Method No.3 is distinguished by intraoperative assessment of blood flow at the site of narrowing of the branches of the pulmonary artery and optional stenting of the PDA.The cuff for banding is made of Gore-Tex tubing.Effectiveness when applying method Nos.1 and 2 is assessed by the change in invasive blood pressure and oxygen saturation after narrowing of the branches of the pulmonary artery.Also,with these techniques PDA stenting by inserting the introducer via pulmonary artery trunk is performed.Results:HLHS with mitral or aortic valve atresia or both was present in 19 patients(43.1%),with severe left heart obstruction resulting in PDA dependent systemic circulation in 16 babies(36.4%).CHD with single ventricle physiology occurred in 9 patients(20.5%).14 babies(31.8%)undergo the procedure following the method No.1,8 patients(18.2%)method No.2 and 22 patients(50%)method No.3.Qp/Qs=1/1 was achieved in 30 patients(30/44,68.1%):as a result of the method No.1 was achieved in 5 patients(5/14,35.7%),method No.2 in 4 patients(4/8,50%),method No.3 in 21 patients(21/22,95.5%).Multivariate regression analysis revealed that method No.3 significantly increases the chances of hemodynamic efficacy operations(OR=35.0;p=0.005;CI(95%)3–411.5).Conclusion:Application of the operation technique No.3 in combination with the intraoperative assessment of blood flow parameters at the site of banding of the branches of the pulmonary artery are the most optimal criteria for achieving Qp/Qs=1/1.If there are signs of restriction at the level of the foramen ovale,atrioseptostomy should be done in the second stage after bilateral pulmonary banding.

不同切口下腹腔镜输卵管切除治疗输卵管妊娠的临床比较

目的 探讨不同切口腹腔镜输卵管切除术治疗输卵管妊娠的疗效差异。方法 收集2021年4月至2024年4月于上海大学附属南通医院接受腹腔镜下输卵管切除术治疗的89例输卵管妊娠患者,随机分为单切口组(采用经脐单切口手术,44例)和多切口组(采用三孔入路手术,45例)。比较两组患者手术指标、性激素水平、疼痛血清指标及卵巢截面积的差异,评估出院时及出院后6个月的卵巢窦卵泡计数(AFC)。结果 两组患者间手术时间、术中出血量比较均无统计学差异(P>0.05);相较于多切口组,单切口组住院时间更短、下床活动更早、切口满意度更高(P<0.05)。术前两组患者间性激素(FSH、LH、E2)、AMH水平和疼痛相关血清指标(NPY、SP)比较均无统计学差异(P>0.05),出院时单切口组FSH、LH、E2、AMH、NPY及SP水平均显著低于多切口组(P<0.05)。出院时和出院6个月后,单切口组的患侧卵巢AFC均显著高于多切口组(P<0.05),出院6个月后单切口组的健侧卵巢AFC显著低于多切口组(P<0.05)。两组患者间术后并发症总发生率比较无统计学差异(P>0.05)。结论 单切口腹腔镜下输卵管切除术治疗输卵管妊娠,与多切口方法相比,具有住院时间短、术后康复快、对卵巢功能影响小等优势,值得在临床上推广应用。

The Nexus between Nigerian Government Spending and Domestic Output in the Presence of Long-Term Crude Oil Price Shock: A Conditional Unrestricted Equilibrium Correction Model Approach

This paper is an empirical analysis of provisional unrestricted level relationship between Nigerian domestic output measured by Gross Domestic Product (GDP) and government spending proxied by capital and recurrent expenditures in the presence of static regressors such as crude oil prices and federal government retained revenues. We estimate an ARDL (1,0,1) using a single-equation approach. Results show that government expenditures have negative but statistically insignificant effects on domestic output in the long-run. Similarly, negative short run effects are established amongst the variables. However, recurrent expenditure is statistically significant in the short-run. Whilst federal government retained revenue has a positive and significant effect, crude oil price exhibited negative relationships with domestic output both at level and in the short-run dynamics. Also a high speed of adjustment implies that Nigerian Gross Domestic Product is extremely sensitive to shocks on the government spending in the long-run. An upward trend forecast between 2014 and 2020 is an indication of the continued positive impact and the government retained revenue will exert on the domestic output in the long-run.

经腹膜后入路单孔腹腔镜全脾切除术的临床应用效果

目的探讨经腹膜后入路单孔腹腔镜全脾切除术的安全性和可行性。方法回顾性分析2017年1月1日至2022年12月30日云南省第一人民医院行经腹膜后入路单孔腹腔镜全脾切除术治疗的10例患者的围手术期情况及术后恢复情况。结果本组10例患者全部顺利施行经腹膜后入路单孔腹腔镜全脾切除术,无中转开腹病例,手术时间56~260 min,术中出血量20~400 mL,无术中并发症发生。术后第1天引流液淀粉酶值53~5400 U/L(中位数652.9 U/L);9例于术后第3天淀粉酶水平基本恢复正常;1例出现胰瘘(生化漏),经通畅引流后未出现后续并发症。2例出现血小板升高,经抗凝治疗后未出现后续并发症。术后住院时间5~17 d(中位时间9.2 d)。10例患者均门诊随访观察2~12个月,中位随访时间6个月,均无后续并发症。结论对于仅单纯行脾脏切除术的患者,经腹膜后入路单孔腹腔镜全脾切除术是安全可行的。

经膀胱入路国产单孔手术机器人辅助腹腔镜下根治性前列腺切除术初步经验

目的:探讨经膀胱入路国产单孔手术机器人辅助腹腔镜下根治性前列腺切除术治疗前列腺癌患者的有效性和安全性。方法:选取2022年12月—2023年3月于南昌大学第一附属医院行经膀胱入路单孔手术机器人辅助腹腔镜下根治性前列腺切除术的3例患者临床资料,并记录、分析患者术后尿控恢复时间和手术切缘等情况。结果:3例手术均顺利完成,未发生中转开放手术或增加辅助手术通道。平均手术时间为262(209~334)min,平均出血量500(300~800)mL,术后3个月尿控良好,均无Clavien分级Ⅱ级以上并发症发生。结论:经膀胱入路国产单孔手术机器人辅助腹腔镜下根治性前列腺切除术在前列腺癌患者中的应用是有效且安全的,但本研究病例数有限,大样本及长期的肿瘤控制需进一步研究。

经腹膜外入路单孔手术机器人辅助前列腺癌根治术护理配合的初步经验

目的:总结采用国产“术锐”单孔机器人手术系统完成经腹膜外入路前列腺癌根治术的手术护理配合初步经验。方法:选择2021年11月—2022年2月在本院泌尿外科接受国产“术锐”单孔机器人辅助经腹膜外入路前列腺癌根治术的5例患者,对其术前准备、术中配合和术后护理经验进行总结与分析。结果:5例患者均在单孔机器人辅助下顺利完成手术,无中转开放,均未增加辅助通道,平均手术时间为179.4 min(145~249 min),平均机器人操作时间129.8 min(106~194 min),术中平均出血量为66 ml(30~100 ml),术后腹腔引流管留置时间3~11 d,无护理相关并发症发生,术后3个月随访患者尿控均良好。器械护士和巡回护士分工合作,并与术者及助手做到沟通有效、优化协作,全程提供优质护理,保障患者手术安全。结论:单孔机器人辅助经腹膜外入路前列腺癌根治术中采取优质护理措施能够有效提高手术的成功率,缩短手术时间和患者术后的住院时间,降低相关并发症的发生率,优质护理对单孔机器人手术的开展具有积极意义,值得推广。

基于多尺度Scale-Unet的单样本图像翻译

随着生成对抗网络(GAN)的发展,基于单样本的无监督图像到图像翻译(UI2I)取得了重大进展。然而,以前方法无法捕获图像中的复杂纹理并保留原始内容信息。为解决这个问题,提出了一种基于尺度可变U-Net结构(Scale—Unet)的新型单样本图像翻译结构SUGAN。所提出的SUGAN使用Scale—Unet作为生成器,利用多尺度结构和渐进方法不断改进网络结构,以从粗到细地学习图像特征。同时,提出了尺度像素损失scale-pixel来更好地约束保留原始内容信息,防止信息丢失。实验表明,与SinGAN、TuiGAN、TSIT、StyTR2等公共数据集Summer■Winter、Horse■Zebra上的方法相比,该方法生成图像的SIFID值平均降低了30%。所提方法可更好地保留图像内容信息,同时生成详细逼真的高质量图像。

非最小相位的单电感双输出Buck-Boost变换器的复合控制方法

单电感双输出Buck-Boost (SIDO Buck-Boost)变换器在电感电流连续模式(CCM)下工作存在交叉影响以及非最小相位特性的问题.为了解决上述问题,提出基于储能函数的扩张状态观测器(ESO)的改进非奇异快速终端滑模(NFTSM)和自抗扰控制(ADRC)相结合的控制策略.设计主路控制器,对系统的传递函数进行拟合得到ADRC范式,利用该范式对主路进行解耦控制.设计支路控制器,采用改进型ESO对储能函数进行观测,并将观测值反馈补偿到非奇异快速终端滑模控制律中,达到支路解耦的效果.为了抑制滑模控制的抖振问题,对趋近律进行改进.利用Lyapunov理论证明系统稳定性.基于硬件在环(HIL)实验平台进行实验验证.结果表明,所提控制策略与PI控制策略以及基于ESO的滑模控制策略相比,在超调量和响应时间上具有较好的效果.

侧方入路单孔腹腔镜完全腹膜外腹股沟疝修补术(附110例报告)

目的:报道侧方入路单孔腹腔镜完全腹膜外腹股沟疝(L⁃SILTEP)修补这一应用于特定情况下腹股沟疝的全新术式。方法:回顾性分析2021年6月至2024年3月宁波大学附属第一医院、上海交通大学医学院附属第一人民医院、同济大学附属东方医院完成的110例腹股沟疝L⁃SILTEP的资料,分析病例资料、手术细节、住院时间和术后情况。结果:手术均顺利完成,无中转。中位手术时间55(41.25,70)min。术中平均出血量5(2,10)mL。术中腹壁下血管损伤5例(4.5%),精索损伤1例(0.9%)。术后6、24和48 h疼痛平均视觉模拟评分(VAS)分别为(3.0±0.8)分、(1.9±0.7)分和(1.1±0.4)分。平均住院时间(3.3±0.7)d。术后并发症常见为腹股沟区血清肿(9例,8.2%),腹膜外间隙血肿1例(0.9%),阴囊积液1例(0.9%)。结论:L⁃SILTEP安全、方便、有效。因其技术要求高,应用限于特定的病人和医师。开展该手术需要重视培训和技术细节,谨慎开展。

运用国产单孔机器人手术系统完成腹膜后入路单孔肾上腺切除术的初步经验(附视频)

目的:探讨运用国产“术锐”单孔蛇形臂机器人手术系统完成腹膜后入路单孔肾上腺切除术的初步经验。方法:南京医科大学第二附属医院泌尿外科于2021年11月—2021年12月收治的4例肾上腺肿瘤患者,运用国产“术锐”单孔蛇形臂机器人手术系统完成单孔肾上腺切除术,手术均采用经腹膜后入路,记录肿瘤大小、手术时间、术中出血量等信息,并对围手术期资料、手术并发症及术后恢复情况进行分析。结果:4例患者中男女各2例,年龄40~68岁,平均年龄54岁,平均BMI值为26.2(24.8~29.8)kg/m^(2);肿瘤最大直径1.2~3.3 cm,其中左侧1例,右侧3例;4例手术均采用纯单孔方式,术中均未增加辅助通道,手术总时间104~200 min,机器人操作时间50~96 min,术中出血量10~50 ml。术后病理诊断为肾上腺皮质腺瘤3例,右血管内乳头状内皮细胞增生(Masson瘤)1例。术后均未出现出血、发热、切口感染等并发症。结论:运用“术锐”单孔蛇形臂机器人手术系统可安全、有效地完成腹膜后入路单孔肾上腺切除术,蛇形臂具有动作灵活、指向性准确等优势,可保障手术的顺利实施。

经腋窝单孔腔镜逆序法治疗男性乳房发育症的临床研究

目的探讨经腋窝单孔腔镜逆序法治疗男性乳房发育症(GYN)的临床疗效。方法回顾性分析2019年4月至2022年3月滨州医学院附属滨州市中心医院收治的17例GYN患者的临床资料,根据治疗方法的不同分为观察组(n=9,12侧乳房),与对照组(n=8名,13侧乳房)。对照组行沿乳晕半环形切口开放单纯皮下腺体切除术,观察组行经腋窝单孔腔镜皮下腺体切除术,比较两组手术相关指标、术后并发症发生情况及美容效果。结果两组单侧手术时间、术中出血量、引流管拔管时间、术后疼痛评分及住院时间比较差异无统计学意义。两组术后并发症发生比较差异无统计学意义。术后6个月,两组乳房对称性、胸部外形、乳头感觉、皮肤情况评分及总分比较差异无统计学意义;观察组瘢痕情况评分高于对照组,差异有统计学意义(P<0.05)。结论经腋窝单孔腔镜技术治疗GYN效果确切,美容效果佳,安全性较高,可作为Simon≥Ⅱb级患者的首选手术方式之一,值得基层医院推广应用。

经腹壁瘢痕入路单孔腹腔镜妇科手术的临床应用

目的探索经腹壁瘢痕入路单孔腹腔镜手术治疗妇科疾病的可行性及安全性。方法回顾性分析2019年8月至2024年1月在南京医科大学附属常州第二人民医院妇科行经腹壁瘢痕入路单孔腹腔镜手术的26例患者的临床资料,对其术中、术后情况进行总结分析。结果26例经腹壁瘢痕入路单孔腹腔镜手术均顺利完成,术中无一例更改手术入路,术后未出现严重并发症,恢复良好。手术时间为50~165(8885±3718)min,术中出血量为1000(1000,4500)mL,血红蛋白下降值为1050(600,1650)g/L,术后住院时间为3~8(569±123)d,住院总费用为16675~32802(2306863±419900)元。结论经腹壁瘢痕入路单孔腹腔镜手术治疗特定患者的特定妇科疾病是安全可行的,有较好的微创和美容优势。

几何参数对加筋圆柱壳轴压屈曲折减因子的影响

加筋圆柱壳广泛应用于航天运载器结构中。受制造工艺影响,实际产品总是存在无法避免的几何缺陷,导致实际航天运载器结构的轴压承载力远低于理论解,需要引入一个0-1之间的折减因子乘上理论解来进行修正,令理论解在保证安全的同时尽可能接近实验值。当结构的几何参数在设计迭代过程中调整时,折减因子的值也可能会随之改变。厘清折减因子随结构几何参数发生改变时的变化规律,有助于便捷、准确地得到合适的折减因子值,从而保证结构安全、降低重量、缩短设计周期。介绍了基于边界扰动载荷法的实现过程,针对主要分析参数进行了收敛性考察,明确了分析参数的选取原则。基于该方法研究了结构的典型参数发生变化时折减因子相应的变化规律。结果表明,折减因子随蒙皮厚度的增加而线性增加,随纵筋截面面积的增加而线性减小,即蒙皮厚度越大、纵筋越是低而薄,则折减因子值越大、结构的缺陷敏感性也越低,而壳体高度的变化则对折减因子没有显著影响。

单一外侧入路联合中药熏洗治疗肘关节恐怖三联征

目的探讨单一外侧入路联合中药熏洗治疗恐怖三联征的临床疗效。方法回顾性分析2020年6月—2022年6月收治的60例患者资料,随机分为治疗组和对照组,每组30例,对照组经手术治疗及术后常规功能锻炼,治疗组在对照组治疗基础上术后2周给予中药熏洗。对比术前、术后第1个月、3个月、6个月的观察指标,包括肘关节屈曲旋转活动度、Mayo肘关节功能评分及并发症发生率。结果在术后第1、3、6个月随访的患者资料显示,治疗组的肘关节活动度、Mayo肘关节功能评分均比对照组改善明显,差异具有统计学意义(P<0.05);治疗组的并发症发生率明显低于对照组(P<0.05);末次Mayo肘关节功能总评分治疗组优良率高于对照组(P<0.05)。结论采用外侧单一入路联合中药熏洗治疗恐怖三联征有利于关节活动改善,并发症减少,值得临床借鉴。

改良单孔加一孔腹腔镜右半结肠癌根治术的临床效果

目的探讨改良单孔加一孔腹腔镜(single-incision plus one-port laparoscopic surgery,SILS+1)右半结肠癌根治术的安全性及有效性。方法采用回顾性病例对照研究。选取2019年1月到2024年6月我院收治的行SILS+1右半结肠癌根治术患者34例。其中对照组23例,行经典的SILS+1右半结肠癌根治术,切口采用3~4 cm绕脐切口+左中腹1.2 cm戳孔;研究组11例,行改良SILS+1右半结肠癌根治术,切口采用3~4 cm下腹部横切口+左中腹1.2 cm戳孔。比较两组的手术时间、出血量、淋巴结清除数量、术后首次肛门排气时间、术后1 d疼痛视觉模拟评分(visual analogue scale,VAS)、术后住院时间等。结果两组出血量、淋巴结清除数量、术后首次肛门排气时间无明显差异(P>0.05);手术时间、术后1 d的VAS及术后住院时间有差异,研究组优于对照组(P<0.05)。结论改良单孔(下腹部横切口)加一孔(左中腹1.2 cm戳孔)腹腔镜右半结肠癌根治手术安全有效,且较绕脐切口手术时间及术后住院时间更短,术后疼痛更轻,手术切口更加美观和隐蔽,值得临床推广应用。