Comparative Analysis of the Efficacy of Transabdominal Pre-Peritoneal Vs Open Tension-Free Hernia Repair in Treating Inguinal Hernia

Objective:To investigate and analyze the clinical outcomes of inguinal hernia patients treated with transabdominal pre-peritoneal repair(TAPP)versus open tension-free hernia repair.Methods:The study was carried out from January 2021 to August 2023,and a total of 50 inguinal hernia patients were selected for this study.The patients were randomly divided into a study group(n=25)and a control group(n=25)by the numerical table method.The patients in the control group were treated with open tension-free hernia repair,whereas the patients in the study group were treated with TAPP.The surgical and postoperative recovery indexes,complication rates,and recurrence rates of the two groups were compared.Results:There was no significant difference in the operative time and intraoperative blood loss between the two groups(P>0.05),and the postoperative feeding time,time out of bed,and hospitalization time of the study group were shorter than those of the control group(P<0.05);the incidence rate of postoperative complications in the study group was lower than that in the control group(P<0.05);and there was no significant difference in the recurrence rate of the two groups after operation(P>0.05).Conclusion:Compared to open tension-free hernia repair,TAPP offers a shorter postoperative recovery duration and hospitalization time,and reduces the incidence of complications.Therefore,this surgical method should be popularized in the treatment of inguinal hernia.

The Effect of Tension-Free Herniorrhaphy in the Preperitoneal Space on the Treatment of Hernia

Objective:To explore the clinical effect of tension-free herniorrhaphy in the preperitoneal space in patients with hernia.Methods:The study period was from January 2020 to December 2022.198 samples of hernia patients admitted to our hospital were selected and divided into a research group(n=99)and a control group(n=99).Patients in the control group underwent tension-free herniorrhaphy with plain films,and patients in the study group underwent tension-free herniorrhaphy in the preperitoneal space.The surgical and postoperative recovery-related indicators,incidence of complications,and recurrence rate were compared between the two groups.Results:The intraoperative and postoperative recovery indexes of the study group were better than those of the control group(P<0.05);the incidence of complications in the study group was lower than that of the control group(P<0.05),and there was no significant difference in the recurrence rate between the two groups(P>0.05).Conclusion:Tension-free herniorrhaphy in the preperitoneal space shortens the operation and postoperative recovery time of hernia patients and reduces the incidence of postoperative complications,so it should be popularized.

Analysis of Ultrasound-guided Ilioinguinal and Iliohypogastric Nerve Block in Tension-Free Inguinal Hernia Repair in Elderly Patients

Objective:To explore the value of ultrasound-guided ilioinguinal and iliohypogastric nerve block(IINB)in tension-free inguinal hernia repair in elderly patients.Methods:A total of 70 elderly patients with tension-free inguinal hernia repair who treated in the hospital from April 2018 to November 2019 were selected and divided into two groups according to the random number table method,with 35 cases each.The control group underwent infiltration of local anesthesia(LA),and the study group added with IINB.The visual analogue scale(VAS)scores of the two groups of patients were compared.Results:The VAS score of the study group when pulling the hernia sac was lower than that of the control group,and the difference was statistically significant(P<0.05).Conclusion:IINB has good analgesic effect in tensionfree inguinal hernia repair in elderly patients,and it is worth promoting.

Urethral complications after tension-free vaginal tape procedures:A surgical management case series

AIM:To analyze the clinical features,diagnostic modalities,and the surgical management of urethral complications after tension-free vaginal tape procedures.METHODS:This study encompasses a retrospective review of nine patients presented with urethral complications after midurethral sling procedures.The patients underwent the procedures during a period from 1999 to 2012 in three different regional hospitals in the southwest part of Sweden.The time from sling placement to diagnosis,the risk factors,clinical features,diagnosis,surgical management,and functional outcome are presented.The presenting symptoms were described as either early onset(< 12 mo) or late onset(> 12 mo) according to when they were first reported.RESul TS:Eight cases of urethral erosion and one case of bladder-neck erosion were detected.The mean interval for diagnoses of the erosions ranged from 3 mo to 11 years.The most common presenting symptoms included de novo urgency with or without incontinence(7/9 patients),urinary retention/voiding dysfunction(4/9 patients),urethritis(4/9 patients),relapse of stress-incontinence(3/9 patients),recurrent urinary tract infections(5/9 patients),and hematuria(1/9 patient).In most cases,voiding dysfunction and urethritis occurred early after the operation.The surgical management applied in most cases was transurethral resection of the intraurethral part of the mesh.The removal of the intraurethral mesh resulted in improvement or complete cure of urgency symptomsin 5/7 patients with urgency.Four patients were reoperated with a new stress-incontinence surgery,one with laparoscopic Burch,and three with retropubic tension-free vaginal tape procedures.COn Clu SIOn:Urethral complications should be suspected in the case of de novo urgency and relapse of stressincontinence.Transurethral excision of the intraurethral mesh is the recommended treatment.

POSTOPERATIVE EVALUATION OF TENSION-FREE VAGINAL TAPE PROCEDURE

Objective To study the outcome of tension-free vaginal tape (TVT) for the treatment of stress urinary incontinence (SUI) in women with cystocele. Methods Forty-two patients with SUI confirmed by urodynamics underwent the TVT procedure under local anesthesia. A prolapse repair was done simultaneously. Results Mean TVT operation time was 26.29 minutes. Mean blood loss was 29.86 mL. Eighty-eight percent of the patients were able to micturate spontaneously within 12 hours and residual urine was less than 100 mL. And 12% of the patients had to use indwelling catheter for 3-11 days. Average hospital stay was 2.91 days. Eighty-eight percent of patients were discharged within 2 days. All patients were followed up (an average of 10.26 months). According to subjective and objective assessment of the outcome, 39 patients (93%) were cured, another 3 patients (7%) were significantly improved and none was failed. There were no major complications such as bladder injury occurred. Conclusion TVT procedure is a minimal invasive, effective, and safe surgery for treatment of SUI.

Efficacy and postoperative complication of tension-free vaginal tape-Secur for female stress urinary incontinence

Background As the third-generation tension-free tape for female stress urinary incontinence （SUI）, tension-free vaginal tape （TVT）-Secur has decreased the common complications associated with TVT and tension-free vaginal tape-transobturator （TVT-O）, such as bladder perforation and obstruction of the bladder outlet; but its efficacy and persistence were still controversial. The aim of this study was to prospectively evaluate and compare the postoperative efficacy and complication at different follow-up time.Methods Patients with SUI, who underwent lVT-Secur treatment in two hospitals from October 2008 to October 2009,were selected. By analyzing preoperative and intraoperative data and postoperative complications, the therapeutic effect and satisfaction at different follow-up stages were evaluated.Results A total of 30 female patients participated in this study. Patients were scheduled for follow-up at the 1st month,3rd month, 6th month and 12th month, while the cure rate was 83.3% （25 patients）, 66.7% （20 patients）, 63.3% （19patients） and 60.0% （18 patients） respectively and the overactive bladder （OAB） symptoms appeared in 11 patients （36.7%）, 10 patients （33.3%）, 6 patients （20%） and 7 patients （23.3%） respectively.Conclusion With the follow-up time becoming longer, TVT-Secur has a high recurrence rate of SUI, the therapeutic effect from the 3rd month to the 12th month is relatively persistent.

Comparing the effects of Bassini versus tension-freehernioplasty: 3 years’ follow-up

In order to compare the effects of Bassini and tension-free mesh hernioplasty,a total of 552 patients with inguinal hernia who were subjected to surgical treatment in our hospital were randomly divided into the following two groups:the Bassini group(n=269)and the tension-free mesh group(n=283).The recurrence rates,pain,dis-comfort,and other complications were recorded,and the causes of the complications were explored.The recurrence rate in the Bassini group was 8.9%(24/269),significantly higher than that in the tension-free repair group(2.8%,8/283).In addition,the recurrence rates in the Bassini and tension-free groups before 2004 were 12.6%and 5.6%,respectively,which were markedly higher than the rates after 2004(5.3%and 0.7%,respectively).The rate of post-operative discomfort and pain within thefirst three months was higher in the Bassini group compared to the tension-free group(25.7%vs 18.5%,respectively).However,there was no difference after three months in the rate of post-operative discomfort and pain,incidence of infection,or scrotal edema between the two groups.The average hospital stay in the Bassini group was longer than that in the tension-free repair group(7.6�1.2 vs 4.5�2.2 days,respectively),but the cost was lower(4518.0�510 vs 6221.3�578 yuan,respectively).Thus,tension-free mesh hernioplasty is indicated for most inguinal hernia patients due to the low recurrence rate,rapid recovery time,and treatment success,but the traditional Bassini procedure has lower cost and other beneficial effects and is still suitable for some patients.

Nursing and psychological treatment during tension-free inguinal hernia repair under local nerve blocked anesthesia

Tension-free inguinal hernia repair under local nerve blocked anesthesia is an up-to-date technology and is different from the traditional approach.The aim of this study is to evaluate the nursing and psychological treatment during operation under local nerve blocked anesthesia.

不同术式治疗腹股沟疝患者的效果

目的:比较腹腔镜经腹腹膜前腹股沟疝修补术(TAPP)、腹腔镜全腹腹膜外腹股沟疝修补术(TEP)与传统无张力疝修补术治疗腹股沟疝患者的效果。方法:选取2021年3月至2023年1月该院收治的141例腹股沟疝患者进行前瞻性研究,依据随机数字表法将其分为传统组、腹腔镜A组、腹腔镜B组各47例。传统组行无张力疝修补术治疗,腹腔镜A组行TAPP治疗,腹腔镜B组行TEP治疗,比较三组围术期指标水平、术后疼痛程度[视觉模拟评分法(VAS)]评分、手术前后应激指标水平[皮质醇(Cor)、去甲肾上腺素(NE)、促肾上腺皮质激素(ACTH)]水平、术后1周内并发症发生率和随访3个月的复发率。结果:腹腔镜A、B组手术时间、肠道功能恢复时间均长于传统组,下床活动时间均短于传统组,术中失血量均少于传统组,差异有统计学意义(P<0.05);腹腔镜B组手术时间、下床活动时间均短于腹腔镜A组,差异有统计学意义(P<0.05);腹腔镜A、B组术中失血量、肠道功能恢复时间比较,差异均无统计学意义(P>0.05);腹腔镜A、B组术后1 d、3 d和1周VAS评分比较,差异均无统计学意义(P>0.05);术后3d,三组血清ACTH、NE、Cor水平均高于术前1 d,但腹腔镜B组<腹腔镜A组<传统组,差异有统计学意义(P<0.05);三组并发症发生率、复发率比较,差异均无统计学意义(P>0.05)。结论:TEP、TAPP治疗腹股沟疝患者下床活动时间均短于传统无张力疝修补术治疗,术中失血量均少于传统无张力疝修补术治疗;TEP治疗腹股沟疝患者的手术时间、下床活动时间均短于TAPP治疗,应激指标水平均低于TAPP治疗和传统无张力疝修补术治疗,三种术式各有利弊。

加强手术室护理干预对腹股沟斜疝患者无张力疝修补术麻醉苏醒期躁动的影响

目的:分析加强手术室护理干预对腹股沟斜疝患者无张力疝修补术麻醉苏醒期躁动的影响。方法:选取2021年3月—2023年3月滨州医学院附属医院收治的腹股沟斜疝患者78例为观察对象,按照随机数字表法分为对照组和观察组,各39例。对照组接受常规手术室护理,观察组在对照组基础上进行加强手术室护理干预。比较两组苏醒期躁动发生率、意识恢复情况以及苏醒期血压、心率。结果:观察组苏醒期躁动发生率低于对照组,差异有统计学意义(P=0.023);观察组苏醒时间、拔管时间短于对照组,差异有统计学意义(P<0.05);观察组苏醒期收缩压、舒张压、心率均低于对照组,差异有统计学意义(P<0.001)。结论:加强手术室护理干预可预防腹股沟斜疝患者无张力疝修补术苏醒期躁动的发生,缩短患者麻醉苏醒时间,维持生命体征稳定。

Analysis of the Effect and Efficiency of Tension- Free Hernia Repair and Traditional Surgery in The Treatment of Hernia

Objective: To analyze the efficiency of tension-free hernia repair and traditional surgery in the treatment of hernia. Methods: A total of 80 patients with hernias were selected and randomly into a control group (traditional hernia repair) and an observation group (tension-free hernia repair), of 40 cases each. The perioperative indicators, pain, physiological stress indicators, complications, and recurrence rates between the two groups were compared. Results: The perioperative indexes of the observation group were better than those of the control group (P < 0.05). The postoperative pain score, postoperative physiological stress index level, incidence of complications, and recurrence rate of the observation group were lower than those of the control group (P < 0.05). Conclusion: In the surgical treatment of hernia, tension-free hernia repair was less traumatic and had a better effect than traditional hernia repair.

支持性心理干预联合渐进性肌肉放松训练在无张力吊带尿道中段悬吊术患者中的护理效果

目的探讨支持性心理干预联合渐进性肌肉放松训练在无张力吊带尿道中段悬吊术患者中的护理效果。方法选取2021年1月至2023年3月于四川大学华西医院进行无张力吊带尿道中段悬吊术的136例压力性尿失禁患者为研究对象,在组间基线特征可比的原则上,采用随机数字表法分为对照组和观察组,每组68例。对照组给予常规护理干预,观察组在对照组的基础上于围手术期给予支持性心理干预联合渐进性肌肉放松训练。比较分析两组患者护理干预前后的心理弹性水平[Connor-Davidson心理弹性量表(CD-RISC)各维度评分]、自知力与自我效能[自知力与治疗态度问卷量表(ITAQ)评分、一般自我效能感量表(GSES)评分]、尿失禁症状与生活质量[泌尿生殖障碍量表简版(UDI-6)评分、尿失禁影响问卷简表(IIQ-7)评分、国际尿失禁咨询委员会尿失禁问卷简表(ICIQ-SF)评分]。比较分析两组患者护理干预后的临床疗效以及术后的并发症发生情况。结果护理干预前,两组患者的CD-RISC乐观、自强、坚韧各维度评分以及ITAQ评分、GSES评分、IIQ-7评分、UDI-6评分、ICIQ-SF评分比较差异均无统计学意义(P>0.05)。护理干预3个月后,两组患者的CD-RISC乐观、自强、坚韧各维度评分以及ITAQ评分、GSES评分均升高,且观察组高于对照组,差异均有统计学意义(P<0.05);两组患者的IIQ-7评分、UDI-6评分、ICIQ-SF评分均降低,且观察组低于对照组,差异均有统计学意义(P<0.05)。观察组患者护理干预3个月后的临床总有效率高于对照组,术后并发症总发生率低于对照组,差异均有统计学意义(P<0.05)。结论支持性心理干预联合渐进性肌肉放松训练可有效增强无张力吊带尿道中段悬吊术患者的心理弹性水平,改善患者的自知力和治疗依从性,提高患者的自我效能、生活质量和临床疗效,且可减少术后并发症的发生。

CFS悬吊联合提肌复合体无张力缩短术矫正中重度上睑下垂效果观察

目的:观察筋膜鞘(Conjoint fascial sheath,CFS)悬吊联合提肌复合体无张力缩短矫正术对中重度上睑下垂患者的矫治效果。方法:选取笔者医院2019年1月-2022年10月收治的中重度上睑下垂患者128例(238只眼),按手术方式不同分为两组,其中CFS悬吊组66例(122只眼,采用单纯CFS悬吊),联合组62例(116只眼,采用CFS悬吊联合提肌复合体无张力缩短矫正术)。比较两组矫正效果,眼睑状况,眼表功能指标,并发症发生情况,复发率和美学效果。结果:联合组有效矫正率(98.28%)显著高于CFS悬吊组有效矫正率(92.32%)(P<0.05);联合组术后1个月和术后3个月睑裂高度和上睑缘角膜映光距离低于CFS悬吊组(P<0.05);术后1个月,两组FL均高于术前(P<0.05);术后3个月,两组FL均低于术后1个月(P<0.05),两组术后1个月FL比较差异有统计学意义(P<0.05);两组手术前后BUT和SIt比较差异无统计学意义(P>0.05);两组并发症总发生率和复发率差异无统计学意义(P>0.05);联合组美学效果(眼睑弧度、眼睑高度对称性和双重睑)评分显著高于CFS悬吊组(P<0.05)。结论:CFS悬吊联合提肌复合体无张力缩短矫正术治疗中重度上睑下垂患者矫治效果确切,能改善患者眼睑状态,对眼表功能影响较小,并发症发生率低,值得推广应用。

全腹膜外疝修补术及微创无张力疝修补术治疗成人腹股沟疝的效果

目的:观察全腹膜外疝修补术(total extraperitoneal herniorrhaphy,TEP)及微创无张力疝修补术治疗成人腹股沟疝的效果。方法:选取2020年1月—2022年12月宜兴市人民医院普外科收治的280例腹股沟疝患者作为研究对象。根据随机数表法将其分为观察组和对照组,各140例。对照组实施微创无张力疝修补术(Lichtenstein)治疗,观察组实施TEP治疗。比较两组围手术期指标,入院当日、出院前1 d胃肠功能、应激指标、疼痛程度、生活质量。结果:观察组首次肛门排气时间、下床时间均早于对照组,住院时间短于对照组,差异有统计学意义(P<0.05)。出院前1 d,两组胃动素(motilin,MTL)水平升高,胃蛋白酶原(pepsinogen,PG)水平降低,观察组MTL水平高于对照组,PG水平低于对照组,差异有统计学意义(P<0.05)。出院前1 d,两组肾上腺皮质激素(adrenal cortex hormone,ACH)、去甲肾上腺素(norepinephrine,NE)、皮质醇(cortisol,Cor)水平均降低,观察组ACH、NE、Cor水平均低于对照组,差异有统计学意义(P<0.05)。出院前1 d,两组面部表情、肢体活动、治疗适应性评分均降低,观察组面部表情、肢体活动、治疗适应性评分均低于对照组,差异有统计学意义(P<0.05)。出院前1 d,两组生理功能、心理功能、社会功能评分均升高,观察组生理功能、心理功能、社会功能评分均高于对照组,差异有统计学意义(P<0.05)。结论:TEP治疗能够有效降低成人腹股沟疝患者激素水平,改善胃肠功能。

腹腔镜疝修补术与开放式无张力疝修补术治疗成人腹股沟疝的有效性及安全性比较

目的探讨腹腔镜疝修补术与开放式无张力疝修补术治疗成人腹股沟疝的有效性与安全性。方法随机选择2020年1月—2023年1月莆田学院附属医院胃肠外科收治的350例成人腹股沟疝患者,以随机数表法将其分为观察组(175例)和对照组(175例),对照组患者应用开放式无张力疝修补术治疗,观察组患者应用腹腔镜疝修补术治疗,比较两组患者的临床疗效,手术时间、下床活动时间、痛感持续时间、术中出血量、住院时间等手术及恢复指标,患者术后1~3 d视觉模拟评分(Visual Analogue Scale,VAS),发生切口感染、尿潴留等并发症发生率以及随访6个月的复发率。结果观察组治疗总有效率为97.71%,高于对照组的81.14%,差异有统计学意义(χ^(2)=25.417,P<0.05)。观察组手术时间比对照组长,术中出血量、下床活动时间、痛感持续时间和住院时间等手术、恢复指标均短于对照组,差异有统计学意义(P均<0.05)。术后1~3 d观察组患者VAS评分低于对照组,差异有统计学意义(P<0.05)。并发症发生率为8.57%,低于对照组的20.57%,差异有统计学意义(P<0.05)。两组随访6个月均未存在复发病例。结论针对成人腹股沟疝患者应用腹腔镜疝修补术治疗比开放式无张力疝修补术治疗更有效,安全性更高,患者术后疼痛少,恢复时间短。

腹腔镜下经腹腹膜前间隙疝修补术治疗老年嵌顿性腹股沟疝患者的效果

目的:观察腹腔镜下经腹腹膜前间隙疝修补术治疗老年嵌顿性腹股沟疝患者的效果。方法:选取2020年1月至2022年12月该院收治的121例老年嵌顿性腹股沟疝患者进行前瞻性研究,根据随机数字表法将其分为对照组60例和观察组61例。对照组采用无张力疝修补术治疗,观察组采用腹腔镜下经腹腹膜前间隙疝修补术治疗,比较两组围手术指标水平、手术前后疼痛程度[视觉模拟评分法(VAS)]评分、创伤应激反应指标[前列腺素E_(2)(PGE_(2))、促肾上腺皮质激素释放激素(CRH)、促肾上腺皮质激素(ACTH)]水平和术后1周并发症发生率。结果:观察组手术时间长于对照组,肛门排气时间和下床活动时间均短于对照组,术中出血量少于对照组,差异有统计学意义(P<0.05);术后,观察组VAS评分低于对照组,差异有统计学意义(P<0.05);术后,两组PGE_(2)、CRH、ACTH水平均高于术前,但观察组低于对照组,差异有统计学意义(P<0.05);两组术后并发症发生率比较,差异无统计学意义(P>0.05)。结论:腹腔镜下经腹腹膜前间隙疝修补术治疗老年嵌顿性腹股沟疝患者可改善围手术指标水平,降低VAS评分和创伤应激反应指标水平,效果优于无张力疝修补术治疗。

镜疝修补术与开放式无张力疝修补术治疗腹股沟疝疗效对比研究

目的对比研究镜疝修补术治疗腹股沟疝的临床疗效。方法方便选取2019年6月—2023年10月启东市第二人民医院收治的123例腹股沟疝患者,采用密闭信封法分为对照组(n=61)、研究组(n=62)。对照组行开放式无张力疝修补术,研究组行镜疝修补术。比较两组围术期指标及并发症发生率。结果研究组手术时间长于对照组,其他指标优于对照组,差异有统计学意义(P均<0.05)。研究组并发症发生率(3.23%)低于对照组(14.75%),差异有统计学意义(χ^(2)=4.768,P<0.05)。结论镜疝修补术治疗腹股沟疝的效果优于传统术式,该手术方式具有微创性,对患者机体损伤较轻,同时,该种术式能够降低并发症风险,具有较高的安全性,有利于患者术后机体康复,从而改善患者预后。

经腹壁人工网片无张力双侧顶端悬吊盆底重建术的疗效分析

目的观察经腹壁人工网片无张力双侧顶端悬吊盆底重建术的临床疗效。方法选取2021年3月1日至2023年10月31日在河南省人民医院因盆腔脏器脱垂行经腹壁人工网片无张力双侧顶端悬吊盆底重建术的患者作为观察组,共85例,同期行腹腔镜下骶骨固定术后的患者40例作为对照组,并分为保留子宫组、切除子宫组两个亚组。随访至2024年4月30日,分析其手术情况和术后并发症,并采用盆腔器官脱垂定量分期法(POP-Q)、盆底功能障碍性疾病症状问卷及其分量表(PFDI-20)、排尿困扰量表(UDI-6)、结直肠肛门困扰量表(CRADI-8)和盆腔器官脱垂困扰量表(POPDI-6)、盆底疾病生活质量影响问卷短表(PFIQ-7),盆腔器官脱垂/尿失禁性生活问卷(PISQ-12)对患者术前、术后治疗效果和生活质量进行组内及组间比较。结果观察组患者中位随访时间13.13个月,客观治愈率96.47%,再次手术率1.18%,围手术期并发症发生率为6.45%(切除子宫)、4.35%(保留子宫),网片暴露率1.61%(切除子宫)。对照组患者中位随访时间13.76个月,客观治愈率92.5%,再次手术率2.5%,围手术期并发症发生率为14.71%(切除子宫)、33.33%(保留子宫),网片暴露率8.82%(切除子宫)。观察组与对照组相比,客观治愈率、再次手术率无差异,观察组的手术时间短、出血少、术后排气快、住院时间短、围手术期并发症发生率低、网片暴露率低,尤其是保留子宫的患者,优势更明显。观察组和对照组患者组内比较时,术后1年与术前POP-Q的各指示点均明显改善(P<0.05),术后PFDI-20、UDI-6、CRADI-8、POPDI-6、PFIQ-7、PISQ-12量表评分均较术前明显降低,差异有统计学意义(P<0.05),但在进行组间比较时,差异无统计学意义(P>0.05)。结论经腹壁人工网片无张力双侧顶端悬吊盆底重建术是治疗前、中盆腔脱垂的一种有效手术方案,可明显改善患者脱垂症状,提高患者生活质量,与骶骨固定术有相似的临床效果,尤其适用于保留子宫的患者。

局麻下腹股沟疝无张力修补术与传统腹股沟疝手术的临床对比分析

目的:比较局麻下腹股沟疝无张力修补术与传统腹股沟疝手术的效果。方法:选取2022年1月—2023年11月本院收治的60例腹股沟疝患者,按随机数字表法分为两组,各30例。对照组行传统腹股沟疝手术,观察组行局麻下腹股沟疝无张力修补术。对比两组围术期指标、术后恢复情况、并发症。结果:两组麻醉起效时间、术中出血量相当(P>0.05);观察组术后排气时间、术后进食时间、术后下地活动时间、住院时间短于对照组,住院费用少于对照组,VAS评分、并发症发生率低于对照组,满意度高于对照组(P<0.05)。结论:局麻下腹股沟疝无张力修补术能够加速腹股沟疝患者术后恢复,缓解疼痛,减少住院费用与并发症发生风险,有利于满意度的提高,具有一定的应用价值,临床可推行应用。

纳米颗粒间相互作用对油-水界面张力的影响机制

为了研究油-水界面上纳米颗粒的动态吸附过程及其对界面张力的影响,采用耗散粒子动力学模拟方法,建立纳米颗粒在油-水界面物理模型,研究单颗粒的吸附动力学过程及多颗粒相互作用对界面张力的影响机制。结果表明:单颗粒在油-水界面的吸附分为自由扩散、界面吸附、动态平衡3个阶段;单颗粒吸附过程自由能变化远大于颗粒的动能,颗粒吸附可自发、快速进行,且吸附后能稳定在界面上;多颗粒间的相互作用力随颗粒间距离的增大而振荡衰减,这是由颗粒间的溶剂粒子所产生的溶剂化效应所致;当颗粒间相互作用为引力时,界面张力增大,当颗粒间相互作用为斥力时,界面张力减小。