Different timing for abdominal paracentesis catheter placement and drainage in severe acute pancreatitis complicated by intraabdominal fluid accumulation

BACKGROUND Non-surgical methods such as percutaneous drainage are crucial for the treatment of patients with severe acute pancreatitis(SAP).However,there is still an ongoing debate regarding the optimal timing for abdominal paracentesis catheter place-ment and drainage.AIM To explore the influence of different timing for abdominal paracentesis catheter placement and drainage in SAP complicated by intra-abdominal fluid accumu-lation.METHODS Using a retrospective approach,184 cases of SAP complicated by intra-abdominal fluid accumulation were enrolled and categorized into three groups based on the timing of catheter placement:group A(catheter placement within 2 d of symptom onset,n=89),group B(catheter placement between days 3 and 5 after symptom onset,n=55),and group C(catheter placement between days 6 and 7 after symptom onset,n=40).The differences in progression rate,mortality rate,and the number of cases with organ dysfunction were compared among the three groups.RESULTS The progression rate of group A was significantly lower than those in groups B and groups C(2.25%vs 21.82%and 32.50%,P<0.05).Further,the proportion of patients with at least one organ dysfunction in group A was significantly lower than those in groups B and groups C(41.57%vs 70.91%and 75.00%,P<0.05).The mortality rates in group A,group B,and group C were similar(P>0.05).At postoperative day 3,the levels of C-reactive protein(55.41±19.32 mg/L vs 82.25±20.41 mg/L and 88.65±19.14 mg/L,P<0.05),procalcitonin(1.36±0.51 ng/mL vs 3.20±0.97 ng/mL and 3.41±0.98 ng/mL,P<0.05),tumor necrosis factor-alpha(15.12±6.63 pg/L vs 22.26±9.96 pg/L and 23.39±9.12 pg/L,P<0.05),interleukin-6(332.14±90.16 ng/L vs 412.20±88.50 ng/L and 420.08±87.65ng/L,P<0.05),interleukin-8(415.54±68.43 ng/L vs 505.80±66.90 ng/L and 510.43±68.23ng/L,P<0.05)and serum amyloid A(270.06±78.49 mg/L vs 344.41±81.96 mg/L and 350.60±80.42 mg/L,P<0.05)were significantly lower in group A compared to those in groups B and group C.The length of hospital stay in group A was significantly lower than those in groups B and group C(24.50±4.16 d vs 35.54±6.62 d and 38.89±7.10 d,P<0.05).The hospitalization expenses in group A were also significantly lower than those in groups B and groups C[2.70(1.20,3.55)ten-thousand-yuan vs 5.50(2.98,7.12)ten-thousand-yuan and 6.00(3.10,8.05)ten-thousand-yuan,P<0.05).The incidence of complications in group A was markedly lower than that in group C(5.62%vs 25.00%,P<0.05),and similar to group B(P>0.05).CONCLUSION Percutaneous catheter drainage for the treatment of SAP complicated by intra-abdominal fluid accumulation is most effective when performed within 2 d of onset.

Comparison of Dwell-Times of Two Commonly Placed Peripheral Intravenous Catheters: Traditional vs. Ultrasound-Guided

Introduction: Because establishing venous access in patients can be difficult and time consuming, the use of ultrasound to guide the insertion of peripheral intravenous catheters has become more common. Anecdotal evidence indicates ultrasound-guided catheter insertion may result in decreased catheter survival in the vein (dwell-time), but there is little evidence to support this observation. The purpose of this study was to compare dwell-times for peripheral intravenous catheters placed with ultrasound guidance with intravenous catheters placed by means of traditional anatomic insertion in patients in an acute care hospital. Methods: This secondary data analysis examined outcomes of 298 patients who received ultrasound-guided catheter insertion and 299 patients who received traditionally placed intravenous catheters. Multivariable linear regression was used to identify significant predictors of dwell-time for both the traditional and US-guided catheters. Results: The average dwell-times for ultrasound-guided and traditionally placed catheters were significantly different (p 2 = 0.22). Discussion: Dwell-times of catheters placed with ultrasound guidance are shorter than traditionally placed catheters. Ultrasound-guided catheters should be monitored closely for inadvertent removal or infiltration. A plan to place a more permanent type of intravenous access should be considered for patients admitted for patients longer than 24 hours.

Distribution, residence time, autotrophic production, and heterotrophic removal of DOP in the Mirs Bay, northern South China Sea

The importance of dissolved organic phosphorus(DOP) as a potential nutrient source for primary producers in marine systems has been recognized for up to eight decades, but currently, the understanding of the biogeochemistry of DOP is in its infancy. In the present study, monthly data between 2000 and 2014 were used to analyze the temporal and spatial distributions of DOP in the Mir Bay, the northern South China Sea. The DOP residence time(TDOP) was also investigated using a simple regression analysis in combination with chlorophyll a(Chl a) measurements while excess DOP(ΔDOP), produced by the biogeochemical processes of autotrophic production and heterotrophic removal, was determined using a two-component mixing mass-balance model in combination with salinity measurements. The results showed that the DOP concentration was(0.017±0.010) mg/L higher in the surface-water compared with the bottom-water and higher in the inner Tolo Harbour and waters adjacent to Shatoujiao compared with the main zone of the bay. Although seasonal changes and annual variability in the DOP were small, the surface DOP concentration was higher in the wet season(April–September)than in the dry season(October–March) due to the impacts of seaward discharges and atmospheric deposition into the bay. Measurement and regression results showed that the DOP release rate from phytoplankton production was about 1.83(gP)/(gChl a) and the TDOP was about 7 d, which implied that the DOP cycle in the bay was rapid. The ΔDOP was calculated from the model to be about 0.000 mg/L in the main zone of the bay and about 0.002 mg/L in the inner Tolo Harbour and waters adjacent to Shaotoujiao, suggesting that the autotrophic production of DOP was almost balanced by the heterotrophic removal in the main zone of the bay and dominated in the inner Tolo Harbour and waters adjacent to Shaotoujiao. In conclusion, the Mirs Bay is very productive and fairly heterotrophic.

Electrocautery vs non-electrocautery dilation catheters in endoscopic ultrasonography-guided pancreatic fluid collection drainage

AIM: To investigate the safety and utility of an electrocautery dilation catheter for endoscopic ultrasonography(EUS)-guided pancreatic fluid collection drainage.METHODS: A single-center, exploratory, retrospective study was conducted between August 2010 and August 2014. This study was approved by the Medical Ethics Committee of our institution. Informed, written consent was obtained from each patient prior to the procedure. The subjects included 28 consecutive patients who underwent EUS-guided transmural drainage(EUS-TD) for symptomatic pancreatic and peripancreatic fluid collections(PFCs) by fine needle aspiration using a 19-gauge needle. These patients were retrospectively divided into two groups based on the use of an electrocautery dilation catheter as a fistula dilation device; 15 patients were treated with an electrocautery dilation catheter(electrocautery group), and 13 patients were treated with a non-electrocautery dilation catheter(non-electrocautery group). We evaluated the technical and clinical successes and the adverse events associated with EUS-TD for the treatment of PFCs between the two groups.RESULTS: There were no significant differences in age, sex, type, location and diameter of PFCs between the groups. Thirteen patients(87%) in the electrocauterygroup and 10 patients(77%) in the non-electrocautery group presented with infected PFCs. The technical success rates of EUS-TD for the treatment of PFCs were 100%(15/15) and 100%(13/13) for the electrocautery and the non-electrocautery groups, respectively. The clinical success rates of EUS-TD for the treatment of PFCs were 67%(10/15) and 69%(9/13) for the electrocautery and the non-electrocautery groups, respectively(P = 0.794). The procedure time of EUS-TD for the treatment of PFCs in the electrocautery group was significantly shorter than that of the non-electrocautery group(mean ± SD: 30 ± 12 min vs 52 ± 20 min, P < 0.001). Adverse events associated with EUS-TD for the treatment of PFCs occurred in 0 patients and 1 patient for the electrocautery and the non-electrocautery groups, respectively(P = 0.942).CONCLUSION: EUS-TD using an electrocautery dilation catheter as a fistula dilation device for the treatment of symptomatic PFCs appears safe and contributes to a shorter procedure time.

Applying real-time control to enhance the performance of nitrogen removal in CAST system

A bench-scale reactor（72 L） red with domestic sewage, was operated more than 3 months with three operation modes： traditional mode, modified mode and real-time control mode, so as to evaluate effects of the operation mode on the system performance and to develop a feasible control strategy. Results obtained from fixed-time control study indicate that the variations of the pH and oxidation-reduction potential（ORP） profiles can represent dynamic characteristics of system and the cycle sequences can be controlled and optimized by the control points on the pH and ORP profiles. A control strategy was, therefore, developed and applied to real-time control mode. Compared with traditional mode, the total nitrogen（TN） removal can be increased by approximately 16% in modified mode and a mean TN removal of 92% was achieved in real-time control mode. Moreover, approximately 12.5% aeration energy was saved in real- time control mode. The result of this study shows that the performance of nitrogen removal was enhanced in modified operation mode. Moreover, the real-time control made it possible to optimize process operation and save aeration energy.

Reduction of radiation exposure in catheter ablation of atrial fibrillation: Lesson learned

Over the last decades, the concern for the radiation injury hazard to the patients and the professional staff has increased in the medical community. Since there is no magnitude of radiation exposure that is known to be completely safe, the use of ionizing radiation during medical diagnostic or interventional procedures should be as low as reasonably achievable(ALARA principle). Nevertheless, in cardiovascular medicine, radiation exposure for coronary percutaneous interventions or catheter ablation of cardiac arrhythmias may be high: for ablation of a complex arrhythmia, such as atrial fibrillation, the mean dose can be > 15 m Sv and in some cases > 50 m Sv. In interventional electrophysiology, although fluoroscopy has been widely used since the beginning to navigate catheters in the heart and the vessels and to monitor their position, the procedure is not based on fluoroscopic imaging. Therefore, nonfluoroscopic three-dimensional systems can be used to navigate electrophysiology catheters in the heart with no or minimal use of fluoroscopy. Although zerofluoroscopy procedures are feasible in limited series, there may be difficulties in using no fluoroscopy on a routine basis. Currently, a significant reduction in radiation exposure towards near zero-fluoroscopy procedures seems a simpler task to achieve, especially in ablation of complex arrhythmias, such as atrial fibrillation. The data reported in the literature suggest the following three considerations. First, the use of the non-fluoroscopic systems is associated with a consistent reduction in radiation exposure in multiple centers: the more sophisticated and reliable this technology is, the higher the reduction in radiation exposure. Second, the use of these systems does not automatically lead to reduction of radiation exposure, but an optimized workflow should be developed and adopted for a safe non-fluoroscopic navigation of catheters. Third, at any level of expertise, there is a specific learning curve for the operators in the non-fluoroscopic manipulation of catheters; however, the learning curve is shorter for more experienced operators compared to less experienced operators.

Fluoroscopy Neuro-Guided Endoscopic Removal of a Lost Ventricular Catheter in Hydrocephalic Girl with Staphylococcal Shunt Infection

In the text, the authors present a successful treatment of an 8-year-old hydrocephalic girl with retained infected ventricular catheter. Altogether, there have been 56 recorded cases of intraventricular catheter migration, including only 5 of infected shunt. In the case described, the first attempt to remove the lost catheter endoscopically was unsuccessful which was the reason for an inflammation’s spread. Only by means of fluoroscopy-assisted endoscopy was it possible to remove the free-floating infected shunt drain from the lateral ventricle during another surgery. In order to prevent immediate or delayed infection complications, the authors postulate a complete removal of a retained ventricular catheter from every patient.

Influence of night duty on endoscopic therapy for bile duct stones

AIM To examine the influence of night duty(ND) on endoscopic therapy for biliary duct stones.METHODS The subjects consisted of 133 patients who received initial endoscopic therapy for biliary duct stones performed by eight endoscopists after they had been on(ND group, n = 34 patients) or not [day duty(DD) group, n = 99 patients]. Patient characteristics(age, gender, history of abdominal surgery, transverse diameter of the largest stone, number of stones), years of experience of the endoscopists, endoscopic procedures [sphincterotomy, papillary balloon dilation(EPBD), papillary large balloon dilation(EPLBD)], and outcomes of initial endoscopy(procedure time; rate of stone removal by the first endoscopist; proceduresuccess rate by the first endoscopist: removal of stones or endoscopic retrograde biliary drainage; rate of final stone removal; final procedure success rate; complications; hospitalization after the procedure) were compared retrospectively between the two groups. History of abdominal surgery and treatment outcomes were also compared between the groups for each of the four endoscopists who performed most of the procedures in the ND group.RESULTS There were no significant differences regarding the number of treatments performed by each endoscopist or the years of experience between the ND and DD groups. The frequency of endoscopic retrograde cholangiopancreatography procedures did not differ significantly between the groups. There were also no significant differences regarding patient characteristics: age, gender, history of abdominal surgery(ND 7: Billroth II 4, R-Y 3; DD 18: double tract reconstruction 1, Billroth I 3, Billroth II 6, R-Y 7, duodenoduodenostomy for annular pancreas 1), transverse diameter of largest stone, and number of stones between the two groups. Among the treatment procedures, the endoscopic s p h i n c t e r o t o m y a n d E P B D r a t e s d i d n o t d i f f e r significantly between the groups. However, EPLBD was performed more frequently in the ND group [47.1%(16/34) v s 19.2%(19/99)]. Regarding outcomes, there were no significant differences in the rate of stone removal, procedure success rate, complications(ND: pancreatitis 1; DD: pancreatitis 6, duodenal bleeding 1, decreased blood pressure 1, hypoxia 2), or hospitalization after the procedure. However, the procedure time was significantly longer in the ND group(71.5 ± 44.7 vs 54.2 ± 28.8). Among the four endoscopists, there were no significant differences in patient history of abdominal surgery, removal of stones, or procedure success rate. However, the procedure time for one endoscopist was significantly longer in the ND group.CONCLUSION The time required for endoscopic therapy for bile duct stones might be influenced by ND.

Effects of loading rate and hydraulic residence time on anoxic sulfide biooxidation

The optimal operation conditions in an anoxic sulfide oxidizing (ASO) bioreactor were investigated. The maximal removal rates for sulfide and nitrate were found to be 4.18 kg/(m3·d) and 1.73 kg/(m3·d), respectively. The volumetrical volumetric loading rates (LRs) observed through decreasing hydraulic retention time (HRT) at fixed substrate concentration are higher than those by increasing substrate concentration at fixed HRT. The sulfide oxidation in ASO reactor was partially producing both sulfate and sulfur; but the amount of sulfate produced was approximately one third that of sulfur. The process was able to tolerate high sulfide concentration, as the sulfide removal percentage always remained near 99% when influent concentration was up to 580 mg/L. It tolerated relatively lower nitrate concentration because the removal percentage dropped to 85% when influent con- centration was increased above 110 mg/L. The process can tolerate shorter HRT but careful operation is needed. Nitrate conversion was more sensitive to HRT than sulfide conversion since the process performance deteriorated abruptly when HRT was decreased from 3.12 h to 2.88 h. In order to avoid nitrite accumulation in the reactor, the influent sulfide and nitrate concentrations should be kept at 280 mg/L and 67.5 mg/L respectively. Present biotechnology is useful for removing sulfides from sewers and crude oil.

A study of the strong pulses detected from PSR B0656+14 using the Urumqi 25-m radio telescope at 1540 MHz

We report on the properties of strong pulses from PSR B0656＋14 by analyzing the data obtained using the Urumqi 25-m radio telescope at 1540 MHz from August 2007 to September 2010.In 44 h of observational data,a total of 67 pulses with signal-to-noise ratios above a 5σthreshold were detected.The peak flux densities of these pulses are 58 to 194 times that of the average profile,and their pulse energies are 3 to 68 times that of the average pulse.These pulses are clustered around phases about 5-ahead of the peak of the average profile.Compared with the width of the average profile,they are relatively narrow,with the full widths at half-maximum ranging from 0.28 ° to 1.78 °.The distribution of pulse-energies follows a lognormal distribution.These sporadic strong pulses detected from PSR B0656＋14 have different characteristics from both typical giant pulses and its regular pulses.

三步尿管拔除模式在前列腺增生症电切术后患者中的应用研究

目的探讨三步尿管拔除模式与传统尿管拔除模式对前列腺增生症患者电切术后临床疗效的影响。方法选取2020年5月至2022年5月右江民族医学院附属医院泌尿外科收治的200例前列腺增生症患者进行前瞻性研究,按随机数字表法将其分为对照组(n=100)和观察组(n=100)。两组均行电切术治疗,术后均留置三腔尿管(气囊内注入15 mL无菌生理盐水),对照组行传统尿管拔除模式干预,观察组行三步尿管拔除模式干预。观察并比较两组患者拔尿管后出血、疼痛、感染及有无排尿不尽或尿潴留情况。结果观察组住院时间短于对照组(P<0.05);治疗后最大尿流率(Qmax)、逼尿肌压(Pdet-Qmax)高于对照组,膀胱顺应性(BC)值、残余尿量(PVR)低于对照组(P<0.05);排尿舒适度分级优于对照组(P<0.05);术后3、6个月时总膀胱性质改善情况优于对照组(P<0.05);并发症发生率显著低于对照组(P<0.05)。结论与传统尿管拔除模式相比,前列腺增生症患者实施电切术治疗后三步尿管拔除模式干预的临床疗效更优,更能减轻患者痛苦,并可显著降低并发症发生率。

碳移除下全球地表气温峰值出现时间的主要影响因子:能量平衡模型研究

碳移除是21世纪末实现巴黎气候协定温度目标的关键手段。在其开展后,全球地表气温将在随后的若干年达峰。目前,耦合模式比较计划第六阶段(CMIP6)开展碳移除试验的数值模式较少,限制了科学界对碳移除下全球地表气温峰值出现时间的理解。本文发现,基于强迫—响应能量框架的两层能量平衡模型能够很好地重现出:1)大气CO_(2)浓度变化对全球地表气温的影响;2)碳移除过程中全球地表气温的峰值出现时间。因此,该模型可作为CMIP6碳移除试验的补充,能够胜任峰值出现时间的影响因子研究。该能量平衡模型的结果显示,在碳移除过程中,不考虑深层海洋的情况下,对全球平均地表气温的峰值出现时间影响最大的因子为平衡气候敏感度,其次为地表热容量;当深层海洋存在时,影响最大的因子为深层海洋热容量,其次为平衡气候敏感度,之后为地表热容量。这些因子主要通过改变碳移除开始时地表净能量收入的大小来影响全球地表气温峰值的出现时间。相比不考虑深层海洋的情况,深层海洋的存在可以略微提前全球温度峰值出现的时间,并使得碳移除后CO_(2)强迫对地表净能量的下降幅度的贡献较大。

《结直肠手术患者尿管拔除评估量表》的编制与信效度检验

目的在加速康复外科理念的指导下编制《结直肠手术患者尿管拔除评估量表》,并检验其信效度。方法通过文献查阅法、专家访谈法,结合临床实践分析影响结直肠手术患者尿管拔除时机的相关因素,通过2轮德尔菲专家函询,形成初始版量表。采用方便抽样法选取2023年4月至10月在湖北省某三级甲等医院的137例结直肠手术患者进行问卷调查,并进行信效度检验,分析量表的敏感性和特异性,确定最佳阈值。结果该量表包括3个维度,20个条目。累计方差贡献率为83.582%。条目水平的内容效度指数为0.96~1.00,量表水平的内容效度指数为0.91。量表各条目与所属维度的相关系数为0.637~0.852,维度间的相关系数为0.602~0.774,各维度与总量表的相关系数为0.889~0.918。量表各维度的Cronbach'sα系数为0.914~0.957,量表总的Cronbach'sα系数为0.931;各维度的分半信度为0.913~0.942,量表总的分半信度为0.958。量表ROC曲线下面积为0.934[95%CI(0.892,0.975)]。当量表评分为29.5分时,该量表的敏感度、特异度和约登指数最高,分别为0.870、0.912和0.782。评分≤29.5分时,可考虑拔除尿管。结论本研究构建的《结直肠手术患者尿管拔除评估量表》具有较好的信效度,经过临床验证可较准确的判断结直肠手术患者尿管拔除时机。

PowerPICC导管全程集束化护理管理在神经外科重症监护病房中的应用

目的探讨PowerPICC全程集束化护理管理在神经外科重症监护病房中的应用效果。方法选取2021年8月—2022年11月医院收治的神经外科重症监护病房的住院患者120例为研究对象,根据组间基本资料具有可比性的原则将患者分为对照组65例和观察组55例。对照组患者接受常规护理;观察组患者接受PowerPICC导管全程集束化护理管理。干预结束后,对比两组患者的穿刺次数、一次性穿刺到位率、一次性置管成功率、导管留置时间、治疗过程中不良事件(导管堵塞、机械性静脉炎、导管相关性血流感染、非计划性拔管)发生率、患者出院时对护理服务、环境设施、住院舒适的满意度评分以及综合满意度评分。结果观察组患者的平均穿刺次数低于对照组,一次性穿刺到位率、一次性置管成功率、导管留置时间均高于对照组,差异有统计学意义(P<0.05)。患者对护理服务、环境设施、住院舒适的满意度以及综合满意度评分均高于对照组,差异有统计学意义(P<0.05)。治疗期间观察组患者的不良事件(导管堵塞、机械性静脉炎、导管相关性血流感染、非计划性拔管)与对照组比较组间差异无统计学意义(P>0.05)。结论PowerPICC全程集束化护理管理能够提高一次性成功置管率,延长导管留置时间,提升了患者对医疗服务的满意度。

不同水力停留时间对新疆油田压裂返排液COD去除及微生物菌群特征研究

针对新疆油田压裂返排液较难处理的现状,采用生物膜法作为处理工艺的主要单元,探究不同水力停留时间(HRT)对化学需氧量(COD)去除的影响,通过高通量测序和功能预测确定不同水力停留时间下的微生物群落特征.结果表明:水力停留时间48 h是生物膜法处理新疆油田压裂返排液的适宜水力停留时间,COD去除效率最高,进水COD平均去除率46.77%,平均去除速率83.33 mg·(L·d)^(-1).相对于水力停留时间36、72 h,水力停留时间48 h的微生物多样性更高,群落组成更丰富,且形成以Proteobacteria(变形菌门)、Firmicutes(厚壁菌门)、Campylobacterota(弯曲菌门)、Bacteroidota(拟杆菌门)和Desulfobacterota(脱硫菌门)为主要优势菌的微生物群落.微生物菌群具有难降解物质代谢的功能基因,可促进新疆油田压裂返排液的生物降解.

探讨后腹腔镜下输尿管切开取石术与经尿道输尿管软镜钬激光碎石术在治疗嵌顿性输尿管上段结石的疗效和并发症比较

目的研究嵌顿性输尿管上段结石经后腹腔镜下输尿管切开取石术与经尿道输尿管软镜钬激光碎石术的临床价值。方法随机选取2021年8月-2023年8月济南市第三人民医院泌尿外科治疗的60例嵌顿性输尿管上段结石患者为研究对象,根据不同的治疗方式分成软镜组与腹腔镜组,各30例。软镜组患者行输尿管软镜下钬激光碎石术,腹腔镜组行经后腹腔镜下输尿管切开取石术。比较两组患者的术后发热、结石清除以及并发症发生情况,比较两组患者手术相关指标,包括手术时间、术后疼痛评分、住院时间。结果两组术后发热、结石清除以及并发症发生情况对比,差异无统计学意义(P均>0.05);软镜组手术时间(57.23±10.34)min、住院时间(4.10±0.54)d、术后疼痛评分(2.21±0.43)分均优于腹腔镜组,差异有统计学意义(t=6.879、9.195、8.181,P均<0.05)。结论后腹腔镜下输尿管切开取石术在清除结石方面可能更有效。然而,其伴随着较大的手术创伤和较多的术后疼痛。相比之下,经尿道输尿管软镜钬激光碎石术具有更加明显的优势,可以减轻术后的疼痛,并降低手术和住院的时间,在选择治疗方法时应根据具体情况进行权衡。

化疗结束后输液港维护时间对导管功能及并发症的影响

目的探讨化疗结束后输液港维护时间对导管功能及并发症的影响。方法选择2022年2月-2023年2月厦门大学附属第一医院门诊维护输液港的120例患者为研究对象,依据随机抽签法将其分为A组(1个月)、B组(2个月)、C组(3个月),各40例。在化疗疗程结束后对应1、2、3个月返院维护输液港,维护时间达6个月后评价导管功能及并发症发生情况。结果A组患者输液港导管通畅率为97.50%(39/40),B组患者液港导管通畅率为95.00%(38/40),C组患者液港导管通畅率为97.50%(39/40),3组肿瘤患者输液港导管功能比较,差异无统计学意义(χ^(2)=0.683,P>0.05)。A组患者输液港导管血栓率为25.00%(10/40),B组患者输液港导管血栓率为20.00%(8/40),C组患者输液港导管血栓率为25.00%(10/40),3组肿瘤患者输液港导管血栓形成情况比较,差异无统计学意义(P>0.05)。3组均未出现导管相关感染、囊袋感染等并发症。结论规范导管维护的基础上,化疗结束后间隔3个月维护输液港对于肿瘤患者而言是最为优质的选择,值得进一步推广。

两种迷你中线导管置管方法的效果比较

目的 探讨提高一次穿刺成功率、减少并发症的迷你中线导管置管方法。方法 将130例拟行迷你中线导管穿刺的患者随机分为对照组和观察组各65例。对照组采用盲穿置管法,导管留置于前臂浅静脉。观察组在超声引导下进行迷你中线导管置管,导管留置于上臂静脉。观察并比较两组患者一次穿刺成功率、置管操作时间、并发症发生率及导管留置时间。结果 对照组64例、观察组63例完成研究。观察组患者一次穿刺成功率(96.83%)显著高于对照组(85.94%);静脉炎发生率显著低于对照组,置管操作时间、导管留置时间显著长于对照组(均P<0.05)。结论 采用超声引导下迷你中线导管置管可以提高一次穿刺成功率,降低静脉炎发生率,延长导管留置时间。