Efficacy of percutaneous mechanical thrombus removal in acute lower extremity deep venous thrombosis

BACKGROUND Acute lower extremity deep venous thrombosis(LEDVT)is a common vascular emergency with significant morbidity risks,including post-thrombotic syndrome(PTS)and pulmonary embolism.Traditional treatments like catheter-directed thrombolysis(CDT)often result in variable success rates and complications.AIM To investigate the therapeutic efficacy of percutaneous mechanical thrombus removal in acute LEDVT.METHODS A retrospective analysis was performed to examine 58 hospitalised patients with acute LEDVT between August 2019 and August 2022.The patients were categorised into the percutaneous mechanical thrombectomy(PMT)group(n=24)and CDT group(n=32).The follow-up,safety and treatment outcomes were compared between the two groups.The main observational indexes were venous patency score,thrombus removal effect,complications,hospitalisation duration and PTS.RESULTS The venous patency score was 9.04±1.40 in the PMT group and 8.81±1.60 in the CDT group,and the thrombus clearance rate was 100%in both groups.The complication rate was 8.33%in the PMT group and 34.84%in the CDT group,and the difference was statistically significant(P<0.05).The average hospitalisation duration was 6.54±2.48 days in the PMT group and 8.14±3.56 days in the CDT group.The incidence of PTS was lower in the PMT group than in the CDT group;however,the difference was not statistically significant(P<0.05).CONCLUSION Compared with CDT,treatment of LEDVT via PMT was associated with a better thrombus clearance rate,clinical therapeutic effect and PTS prevention function,but the difference was not statistically significant.Moreover,PMT was associated with a reduced urokinase dosage,shortened hospitalisation duration and reduced incidence of complications,such as infections and small haemorrhages.These results indicate that PMT has substantial beneficial effects in the treatment of LEDVT.

Clinical Value of Predictive Nursing Intervention on Deep Venous Thrombosis of Lower Extremities after Cesarean Section

[Objectives]To explore the clinical nursing value of predictive nursing intervention in patients with deep venous thrombosis of lower extremities after cesarean section.[Methods]From December 2022 to April 2023,105 pregnant and lying-in women who were hospitalized in the Gynecology Department of Pingquan Hospital and underwent cesarean section and met the inclusion criteria were included as the study objects.According to the medical records,they were divided into observation group(n=52 cases)and control group(n=53 cases).The clinical experimental subjects were divided into two groups.One group was the control group with routine nursing,and the other group was the observation group with predictive nursing intervention.The number of cases of deep venous thrombosis of lower extremities in the two groups was recorded to evaluate the clinical value.[Results]The incidence of deep venous thrombosis of lower extremities in the two groups after cesarean section was compared,and it was suggested that the incidence of the observation group was lower than that of the control group(P<0.05).[Conclusions]Special predictive nursing intervention can greatly reduce the incidence of deep venous thrombosis of lower extremities after cesarean section,improve nursing satisfaction,and improve clinical efficacy,which is worthy of recommendation.

Establishment of a nomogram model for predicting therapy complications in patients with polycythemia and deep venous thrombosis

BACKGROUND Patients with deep venous thrombosis(DVT)residing at high altitudes can only rely on anticoagulation therapy,missing the optimal window for surgery or thrombolysis.Concurrently,under these conditions,patient outcomes can be easily complicated by high-altitude polycythemia(HAPC),which increases the difficulty of treatment and the risk of recurrent thrombosis.To prevent reaching this point,effective screening and targeted interventions are crucial.Thus,this study analyzes and provides a reference for the clinical prediction of thrombosis recurrence in patients with lower-extremity DVT combined with HAPC.AIM To apply the nomogram model in the evaluation of complications in patients with HAPC and DVT who underwent anticoagulation therapy.METHODS A total of 123 patients with HAPC complicated by lower-extremity DVT were followed up for 6-12 months and divided into recurrence and non-recurrence groups according to whether they experienced recurrence of lower-extremity DVT.Clinical data and laboratory indices were compared between the groups to determine the influencing factors of thrombosis recurrence in patients with lowerextremity DVT and HAPC.This study aimed to establish and verify the value of a nomogram model for predicting the risk of thrombus recurrence.RESULTS Logistic regression analysis showed that age,immobilization during follow-up,medication compliance,compliance with wearing elastic stockings,and peripheral blood D-dimer and fibrin degradation product levels were indepen-dent risk factors for thrombosis recurrence in patients with HAPC complicated by DVT.A Hosmer-Lemeshow goodness-of-fit test demonstrated that the nomogram model established based on the results of multivariate logistic regression analysis was effective in predicting the risk of thrombosis recurrence in patients with lowerextremity DVT complicated by HAPC(χ^(2)=0.873;P>0.05).The consistency index of the model was 0.802(95%CI:0.799-0.997),indicating its good accuracy and discrimination.CONCLUSION The column chart model for the personalized prediction of thrombotic recurrence risk has good application value in predicting thrombotic recurrence in patients with lower-limb DVT combined with HAPC after discharge.

Clinical Application of Percutaneous Transluminal Angioplasty and Stent Implantation in Acute Lower Extremity Deep Venous Thrombosis

Purpose: To analyze the application of percutaneous transluminal angioplasty and stenting in acute deep venous thrombosis of lower extremities. Methods: 70 patients were divided into two groups according to the presence or absence of percutaneous transluminal angioplasty and stenting. Results: The mean circumferential diameter difference between the affected limbs and the healthy limbs and the knees at 15 cm was statistically significant. The cure rate and effective rate of the research group were higher than those of the control group (P<0.05). Conclusion: Percutaneous transluminal angioplasty and stenting are of high value in acute lower extremity deep venous thrombosis.

Discussion on Prevention and Treatment of Lower Extremity Deep Venous Thrombosis in Orthopedic Perioperative Period from Spleen and Stomach Meridians

Deep venous thrombosis of lower extremity is one of the common complications in orthopedic perioperative period.It is caused by many factors,such as peripheral vein dilation,slow blood flow;long-term immobilization,bed rest and so on.On the one hand,it affects the early postoperative functional exercise and functional recovery,on the other hand,it increases the length of hospital stay and economic burden,increases the pain of patients and even endangers their lives.Effective treatment of traditional Chinese medicine combined with western medicine can play a better role in the prevention and treatment of lower extremity deep venous thrombosis.This study expounds the concept of spleen and stomach meridians in the prevention and treatment of lower extremity deep venous thrombosis,and puts forward some opinions on the dialectical treatment and daily conditioning of lower extremity deep venous thrombosis,hoping to provide ideas for the clinical prevention and treatment of lower extremity deep venous thrombosis in traditional Chinese medicine.

Manual aspiration thrombectomy for acute and subacute inferior vena cava thrombosis and lower extremity deep venous thrombosis

Deep vein thrombosis(DVT), which can lead to pulmonary embolism(PE), is a major contributor to the global disease burden and is the third most common cardiovascular pathology after coronary artery disease and stroke. Venous thromboembolic disease, which encompasses the disease entities of DVT and PE, affects up to 10 million cases every year and represents a serious and potentially life-threatening condition. Standard anticoagulation therapy alone is ineffective at promoting deep venous system thrombus removal. Many patients develop postthrombotic syndrome(PTS) despite being on adequate anticoagulation therapy. Aggressive therapy for rapid thrombus removal is important to prevent the development of PTS. Besides impeding the onset of PTS, rapid clearance of the thrombus is also required in the treatment of phlegmasia cerulea dolens, an uncommon but life-threatening complication of acute DVT that can lead to arterial insufficiency, compartment syndrome, venous gangrene, and limb amputation. Manual aspiration thrombectomy(MAT) can provide rapid and effective therapy that could be compared to the open surgical thrombectomy approach with minimal risk of morbidity, mortality, or recurrence after surgery. Though many devices have been developed to date for pharmacomechanical thrombolysis, the cost of the treatment using these devices is very expensive. MAT is simple to perform, easy to learn, inexpensive, and rapid. This review will outline and dissect several studies and case reports, sourced from the Pub Med database, on the subject of the use of MAT in treating inferior vena cava thrombosis and lower extremity DVT, including in patients with compression of the iliac vein and phlegmasia cerulea dolens.

Two-point compression ultrasonography: Enough to rule out lower extremity deep venous thrombosis?

BACKGROUND: Deep venous thrombosis(DVT) is a major cause of morbidity and is a common presenting complaint to the emergency department(ED). Point-of-care two-point compression ultrasonography has evolved as a quick and effective way of diagnosing DVT. The purpose of this study is to validate the prevalence and distribution of venous thrombi isolated to proximal lower extremity veins, other than common femoral and popliteal veins in patients with DVT.METHODS: This is a single-center retrospective study that looked at patients presenting to the ED of a tertiary care hospital between January 2014 and August 2018. The clinical presentation and laboratory and imaging results were obtained using the hospital's electronic medical record.RESULTS: A total of 2,507 patients underwent a lower extremity duplex ultrasound during the study period. Among them, 379(15%) were included in the study. The percentages of isolated thrombi to the femoral vein and deep femoral vein were 7.92% and 0.53%, respectively. When the patients were stratified into the two groups of isolated DVT and two-point compression DVT, there were no statistically significant differences in the laboratory results between both groups. However, immobilized patients and patients with recent surgeries were more likely to have an isolated DVT.CONCLUSIONS: Thrombi isolated to proximal lower extremity veins other than the common femoral and popliteal veins make up 8.45% of DVTs. Given this significant number of missed DVTs, the authors recommend the addition of the femoral and deep femoral veins to the two-point compression exam.

Comparison of four clinical scores for the predicting lower limb deep venous thrombosis in Chinese patients

Objective：To evaluate Wells, Kahn, St.Andr 6 and Constans scores for the prediction of deep venous thrombosis in Chinese patients. Methods：One hundred and seventy-two patients, prospectively, blinded referred for evaluation with four clinical-score systems for suspected deep venous thrombosis, were examined by ultrasonography. Sensitivity, specificity, positive predictive value, negative predictive value and receiver operation curves were calculated for four clinical scores. The difference between areas of the ROC curve for each of the scores was compared with others and reference line. Results：Forty-six of 172 patients had deep venous thrombosis proven by sonography. The sensitivity, specificity, positive predictive value and negative predictive value for Wells score was 91.3%, 57.1%, 43.8% and 94.7%, respectively, for Kahn score; 65.2%, 71.4%, 45.5% and 84.9%, respectively, for St.Andr 6 score; 63%, 38.9%, 27.4% and 74.2% respectively, for Constans score; 95.7%, 34.9%, 34.9% and 95.7% respectively. Area under ROV curve of Constans score was 0.814, which was similar to that of Wells score, then followed by Kahn score and that of St.Andr 6 score was no difference with the reference line. Conclusion：Based on the results of our study, the sensitivity, negative prediction value and area under ROC curve are larger for Constans score and Wells score in Chinese hospitalized patients than that of Kahn score or St.Andr 6 score. Considering the aim of the clinical assessment, Constans score and Wells score are more efficient for Chinese hospitalized patients.

Deep Venous Thrombosis: Commonly Affected Veins in the Lower Limbs

Aim and Objectives: This study aimed to record the commonly affected veins in the lower limbs, to compare the affected sides and gender and to correlate the Doppler findings and stages of deep venous thrombosis (DVT). Materials and Methods: A descriptive retrospective study of 46 already diagnosed cases of lower limb DVT. Results: Out of 46 cases of DVT, 71.74% were females. The majority of patients (93.47%) were affected in unilateral lower limb with significant predominance (65.22%) to affect the left lower limb (p Conclusion: Lower limb deep venous thrombosis affects left lower limb more than right and females more than males. Superficial femoral vein (SFV) and common femoral vein (CFV) are the most common affected veins. Lower limb DVT predominantly present in acute stage with venous distension and absent blood flow.

Pitfalls and sources of error of color duplex ultrasonography in detecting deep vein thrombosis of proximal lower extremities

Purpose To analyze the sources of errors and discuss the techniques to eliminate pitfalls in detecting deep vein thrombosis (DVT) of the proximal lower extremities with color duplex ultrasonography (CDUS). Methods Sixty-eight cases with initial and repeat venous CDUS of the proximal lower extremities were retrospectively reviewed. The repeat was done within 24 hours after initial CDUS scanning. Comparing repeated images to initial ones, the pitfalls and sources of error in CDUS of the proximal lower extremities were discussed. Results In total 68 repeat studies, there were 62 results as same as initials and 4 cases of false negative DVT and 2 cases of false positive DVT. Conclusion Venous CDUS in detecting DVT is observer dependent. Some pitfalls and errors can be eliminated and corrected with proper scan techniques. CDUS is the most valuable imaging modality for assessing suspected DVT in the proximal lower extremities.

Preventing Lower Extremity Deep Vein Thrombosis After Hip Fracture Surgery in Elderly Patients by Acupoint Application Combined with Pneumatic Compression Therapy

Objective:To investigate and analyze the long-term clinical effects of acupoint application combined with pneumatic compression therapy in the prevention of deep venous thrombosis after hip fracture surgery among the elderly.Methods:Sixty elderly patients who had undergone hip fracture surgery from February 2021 to February 2022 were selected as the research subjects.The patients were divided into two groups via drawing lots.Both the groups received nursing care,but the patients in the observation group were treated with TCM acupoint application combined with pneumatic compression therapy,whereas the control group received pneumatic compression therapy.The evaluation indicators included the patients’quality of life and complications.Results:The incidence of lower extremity deep vein thrombosis in the observation group was more than twice(0.3%),whereas the incidence of lower extremity complications in the control group was more than 6 times(20%).There was a significant difference between the two groups(p<0.05).Conclusion:Traditional Chinese medicine acupoint application combined with pneumatic compression therapy is beneficial for the prevention of postoperative lower extremity deep vein thrombosis among elderly patients.In addition,the patients’overall quality-of-life scores in both physiological and psychological aspects improved significantly,which carries significant clinical reference value.

Analysis thrombolysis with anticoagulation treatment for early stage of deep vein thrombosis in the lower extremities

Objective: To explore the effect of thrombolysis with anticoagulation treatment for early stage of deep vein thrombosis of lower extremity. Methods: The clinical data of 106 patients at the early stage of deep vein thrombosis (DVT) in the lower extremities treated by thrombolysis with anticoagulation and dispersion drugs were analyzed retrospectively. Results: The thrombolytic effect was significant. After treatment, the deep veins were recanalized without regurgitation in 75.3% of the patients. The total effective rate was 100%. Only three patients had hemorrhagic complication, but none of the patients died. Conclusion: Thrombolysis with anticoagulation treatment is an effective and safe method for DVT at the early stage.

Analysis of curative effect of Bingxiao powder on lower limb deep vein thrombosis

Objective:To investigate the therapeutic effect of Bingxiao powder on edema caused by deep venous thrombosis in lower limb thrombosis.Methods:Selected in our hospital from September 2017 to April 2019 of 122 patients with lower limb deep vein thrombosis caused by edema.The patients were divided into two groups:Bingxio powder(61 cases)and magnesium sulfate(61 cases),the circumference difference of lower leg and thigh,the integral of edema and pain,the effective rate and the satisfaction rate of curative effect were compared between the two groups of patients with edema caused by thrombosis of lower limb.Results:in the observation group,the peripheral diameter difference of calf(1.08±0.21)cm,the peripheral diameter difference of thigh(1.76±0.28),the edema score(1.09±0.22)and the pain score(1.34±0.25)were all lower than those of the control group(P<0.05).The effective rate(95.08%)and satisfaction rate(96.72%)of the observation group were higher than those of the control group(P<0.05).Conclusion:Bingxiao powder can reduce the edema symptoms and pain symptoms of patients with edema caused by deep venous thrombosis of lower limbs,and reduce the circumference difference of the lower leg and thigh,with significant clinical effect.

利伐沙班和低分子肝素在老年粗隆间骨折患者围手术期的应用效果分析

目的分析利伐沙班和低分子肝素在老年粗隆间骨折患者围手术期的应用效果。方法选取2020年6月至2021年10月于厦门大学附属中山医院就诊的老年粗隆间骨折围手术期患者130例为研究对象。按随机数字表法分为观察组和对照组,每组65例。对照组采用低分子肝素皮下注射预防血栓,观察组采用利伐沙班口服预防血栓。比较2组患者术前及术后2周的凝血指标,术后2周内下肢深静脉血栓形成(DVT)和肺栓塞的发生率,术中出血量、术后引流量及住院时间,术后1 d炎症相关指标。结果2组患者术前、术后2周组间和组内凝血相关指标差异均无统计学意义(均P>0.05)。术后观察组下肢DVT发生率显著低于对照组[4.6%(3/65)比15.4%(10/65)],差异有统计学意义(χ^(2)=4.188,P=0.041)。观察组与对照组术中出血量、术后引流量及住院时间差异均无统计学意义(均P>0.05)。术后1 d观察组降钙素原和C反应蛋白水平显著低于对照组[(0.17±0.02)μg/L比(0.22±0.01)μg/L、(20.2±2.3)mg/L比(23.9±3.6)mg/L],差异均有统计学意义(均P<0.001)。结论利伐沙班与低分子肝素在老年粗隆间骨折患者围手术期均有良好的抗凝效果及安全性,但利伐沙班预防术后下肢DVT发生的效果更显著且口服用药更方便。

全麻患者术后麻醉重症监护室中新发下肢深静脉血栓的危险因素

目的筛选全麻术后转入麻醉重症监护室(AICU)的患者新发下肢深静脉血栓(DVT)的危险因素。方法回顾性收集2022年5—8月择期行全麻下手术后带气管插管转入AICU的患者192例,男105例,女87例,年龄18~85岁,BMI 18~31 kg/m^(2),ASAⅡ或Ⅲ级。收集患者基线资料、麻醉手术资料及实验室检查资料。根据入AICU 6 h内的超声结果是否有新发DVT将患者分为两组:DVT组和非DVT组。采用多因素Logistic回归分析筛选AICU中患者术后6 h内新发DVT的危险因素及其95%可信区间(CI)。结果全麻术后在AICU新发DVT的患者有64例(33.3%),均为小腿肌间静脉血栓(CMVT)。多因素Logistic回归分析结果显示,术前心律失常(OR=2.236,95%CI 1.011~4.943,P=0.047)、术前血小板计数高(OR=1.006,95%CI 1.002~1.010,P=0.007)、术前D⁃二聚体浓度高(OR=1.203,95%CI 1.046~1.383,P=0.010)、术中低血压(OR=1.010,95%CI 1.002~1.019,P=0.020)和术中应用去甲肾上腺素(OR=3.796,95%CI 1.697~8.492,P=0.001)是全麻术后AICU中患者新发DVT的危险因素;阿司匹林规律服用史(OR=0.176,95%CI 0.060~0.518,P=0.002)是其保护因素。结论术前心律失常、术前血小板计数高、术前D⁃二聚体浓度高、术中低血压及术中应用去甲肾上腺素是全麻手术后AICU患者6 h内新发DVT的危险因素。

基于诺莫图构建髋部骨折患者发生下肢深静脉血栓的预测模型

目的探讨髋部骨折患者发生下肢深静脉血栓(DVT)的独立危险因素,并构建和验证列线图模型。方法选择2020年1月至2023年6月佛山市中医院骨科收治的髋部骨折患者227例为研究对象,按照7∶3比例将患者分为建模组(n=159)和验证组(n=68)。收集患者的临床资料,采用LASSO回归和Logistic回归筛选髋部骨折患者发生DVT的独立危险因素,建立风险预测模型和列线图。采用一致性指数(C-index)、校准曲线、受试者工作特征(ROC)曲线进行评价。结果建模组159例髋部骨折中发生DVT 33例,发生率为20.89%。LASSO回归结合多因素Logistic回归分析结果显示,年龄≥70岁、糖尿病、受伤至手术时间≥5 d、低蛋白血症、D-二聚体>0.5是髋部骨折患者发生DVT的独立危险因素。基于上述危险因素绘制列线图模型,将上述5个危险因素构建列线图模型,模型区分度良好(C-index=0.932);Hosmer-Lemeshow检验显示,列线图的拟合优度良好(χ^(2)=57.625,P=0.732)。建模组和验证组发生DVT的ROC曲线下面积分别为0.932、0.821,模型准确度高。结论年龄≥70岁、糖尿病、受伤至手术时间≥5 d、低蛋白血症、D-二聚体>0.5是髋部骨折患者发生DVT的独立危险因素,基于上述因子构建的列线图模型可有效预测髋部骨折患者发生DVT的风险。

深静脉血栓形成患者下肢深静脉血栓密度、血清cTnI、Hcy水平与合并肺栓塞风险的关系研究

目的探讨深静脉血栓(DVT)形成患者下肢深静脉血栓密度、血清心肌肌钙蛋白I(cTnI)及同型半胱氨酸(Hcy)水平与合并肺栓塞风险的关系。方法回顾性分析2016年1月至2019年1月在秦皇岛市第一医院进行治疗的108例DVT患者,依据是否合并肺栓塞分为对照组(单纯DVT)68例,观察组(DVT合并肺栓塞)40例。收集两组基线资料[年龄、性别、高血压史、高血脂史、慢性肺部疾病、脑血管意外、下肢骨折、吸烟史、饮酒史、血栓受累肢体、受累静脉、下肢深静脉血栓密度比、wells评分、血小板计数(PLT)、中性粒细胞计数(NEUT)、C反应蛋白(CRP)、D二聚体(D-D)、cTnI及Hcy水平]并进行比较,分析DVT合并肺栓塞的影响因素。根据肺栓塞危险程度将DVT合并肺栓塞患者划分为高危组(n=10)、中危组(n=17)、低危组(n=13);比较不同危险程度肺栓塞间下肢深静脉血栓密度、血清cTnI、Hcy水平及wells评分间差异。分析下肢深静脉血栓密度、血清cTnI及Hcy水平与wells评分的关系。结果两组患者年龄、性别、高血压、高血脂、慢性肺部疾病、脑血管意外、下肢骨折、吸烟史、饮酒史、血栓受累肢体及受累静脉比较,差异均无统计学意义(P>0.05);观察组下肢深静脉血栓密度比、wells评分、PLT、NEUT、CRP、D-D、cTnI及Hcy水平分别为(52.37±12.19)%、(5.16±1.07)分、(284.63±90.72)×10^(9)/L、(71.22±10.16)%、(15.29±2.39)mg/L、(1051.27±271.19)ng/mL、(0.33±0.13)ng/mL、(21.27±2.16)μmol/L,均高于对照组[41.67±10.28)%、(3.28±0.94)分、(206.27±86.15)×10^(9)/L、(64.31±8.75)%、(10.33±1.71)mg/L、(739.52±206.34)ng/mL、(0.21±0.06)ng/mL、(10.19±1.75)μmol/L],差异均有统计学意义(P<0.05)。Logistic回归分析结果显示,下肢深静脉血栓密度比、wells评分、cTnI及Hcy为DVT合并肺栓塞的独立预测因子(P<0.05)。肺栓塞低危组下肢深静脉血栓密度比、cTnI、Hcy水平及wells评分均低于中危组、高危组,差异均有统计学意义(P<0.05)。经Spearman相关性分析,下肢深静脉血栓密度比、cTnI、Hcy水平与wells评分呈正相关(P<0.05)。结论DVT患者下肢深静脉血栓密度、血清cTnI、Hcy可有效预测合并肺栓塞,同时可判断患者肺栓塞严重程度。

手术患者术后下肢深静脉血栓形成的术中预防方案分析

目的分析预防手术患者术后下肢深静脉血栓形成(LDVT)的术中应用方案。方法收集2022年3月至2023年2月于保定市第二中心医院收治的256例手术患者的临床资料,将2022年9月前未应用术中改良方案的患者作为常规组(n=119),将2022年9月开始应用术中改良方案的患者作为改良组(n=137)。比较两组患者的手术指标(手术时间、术中出血量、术后卧床时间、住院时间和配合度评分)、血流动力学指标(心率、平均动脉压)、手术前后股静脉血流指标(峰值血流速度、平均血流速度和血流量)、手术前后凝血功能指标[凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、纤维蛋白原(FIB)、凝血酶时间(TT)和D-二聚体(D-D)]及术后LDVT的发生情况。结果改良组患者的手术时间、术后卧床时间、住院时间均明显短于常规组患者,术中出血量明显少于常规组患者,配合度评分明显高于常规组患者,差异均有统计学意义(P﹤0.01)。入室后,两组患者的心率、平均动脉压比较,差异均无统计学意义(P﹥0.05);术中10 min、术毕即刻,改良组患者的心率、平均动脉压均低于常规组患者,差异均有统计学意义(P﹤0.05)。术后,改良组患者股静脉的峰值血流速度、平均血流速度、血流量均高于常规组患者,差异均有统计学意义(P﹤0.01)。术后,改良组患者的PT、APTT、TT均长于常规组患者,D-D、FIB水平均低于常规组患者,LDVT的发生率低于常规组患者,差异有统计学意义(P﹤0.05)。结论手术室人员于术中应用改良方案能够改善患者术中血流动力学,提高手术配合度,降低术中出血量,从而减轻术后血液高凝状态,促进术后下肢静脉血液回流,降低术后LDVT的发生风险。

股骨粗隆间骨折术后下肢深静脉血栓并发症影响因素分析及Nomogram模型建立

目的探讨股骨粗隆间骨折手术后早期发生下肢深静脉血栓的危险因素,并进行Nomogram模型构建。方法选取2018年1月—2020年12月于华北石油管理局总医院行股骨粗隆间骨折手术的120例患者,术后早期发生下肢深静脉血栓13例。按照术后住院期间是否发生下肢深静脉血栓分为并发症组和无并发症组。采用多因素Logistics分析术后发生并发症的风险并构建Nomogram模型。结果并发症组患者住院时长、术后住院时间、治疗总费用均高于对照组,差异有统计学意义(P<0.05)。单因素分析显示,骨折类型、合并慢性病种类、贫血输血、骨折发病时长是术后下肢深静脉血栓的潜在影响因素,差异有统计学意义(P<0.05)。将单因素有统计学差异的变量进行Logistics多因素分析,合并慢性病种类、贫血输血、骨折发病时长是股骨粗隆间骨折术后下肢深静脉血栓的独立危险因素(P<0.05)。采用内部数据进行验证,C-index为0.746(95%CI:0.596~0.935),该Nomogram模型预测与实际观测结果吻合度较好。结论术前合并慢性病≥3种、贫血输血、骨折发病时长>1 d是股骨粗隆间骨折术后下肢深静脉血栓的独立危险因素。本研究构建的Nomogram模型有助于指导医师完善个性化围手术期治疗方案。

高龄产妇剖宫产术后住院期间下肢深静脉血栓形成预测模型构建

目的:分析高龄产妇剖宫产术后住院期间下肢深静脉血栓形成(LEDVT)的影响因素,并构建Nomogram。方法:选择2021年1月-2023年10月到本院接受剖宫产术的202例高龄产妇临床资料,依据其术后住院期间有无发生LEDVT分为发生组(n=51)与未发生组(n=151),logistic回归分析筛选高龄产妇剖宫产术后住院期间LEDVT的危险因素;用R软件绘制预测高龄产妇剖宫产术后住院期间LEDVT的Nomogram,且用受试者工作特征(ROC)曲线、校准曲线、Hosmer-Lemeshow拟合优度检验评估。结果:202例发生LEDVT51例,占25.3%。logistic回归分析显示,口服避孕药史(95%CI1.847~9.183,P=0.001)、血栓史(95%CI1.336~5.512,P=0.006)、妊娠高血压疾病(95%CI1.391~7.302,P=0.006)、妊娠期糖尿病(95%CI1.059~5.257,P=0.036)是高龄产妇剖宫产术后住院期间LEDVT的独立危险因素。ROC曲线下面积0.763(95%CI0.693~0.833)。校准曲线斜率接近1,且Hosmer-Lemeshow拟合优度检验χ^(2)=5.911,P=0.315。结论:高龄产妇剖宫产术后住院期间LEDVT发生受口服避孕药史、血栓史、妊娠高血压疾病及妊娠期糖尿病的影响,依此构建的Nomogram可预测高龄产妇剖宫产术后住院期间LEDVT发生风险,为LEDVT的早期预警、及早预防、临床诊疗提供依据。