1. Introduction

Yangtze Medicine

2475-7330

Scientific Research Publishing

10.4236/ym.2020.44023

YM-100200

Articles

Medicine&Healthcare

Effect of Physical Intervention on Preventing Upper Limb Venous Thrombosis of Patients with PICC: A Systematic Review and Meta-Analysis of Randomized Trials

Chunmei

¹^*Xin

Liang

¹^*Shulong

Shulong Cao

¹^*Hong

Zhou

¹^*Haiyuan

Zhang

¹^*

Department of Medicine, Yangtze University, Jingzhou, China

30092020

040424125328, November 201927, September 2020 30, September 2020

2014

This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/

Objective: To evaluate the effect of physical methods on the prevention of venous thrombosis in patients with peripherally inserted central catheter (PICC). Methods: Randomized controlled trials meeting the inclusion and exclusion criteria were retrieved from the following databases: Cochrane library, Pubmed, EMbase, Web of science, Ovid, CBM, CNKI, Wanfang, VIP, then Review Manage (RevMan) 5.3 software was used for data analysis. Results: A total of 24 RCTs including 3496 patients were analyzed in the study. The results of meta-analysis showed that various forms of upper limb movements could effectively decrease the incidence of venous thrombosis in the patients with PICC [ RR = 0.23, 95% CI (0.16, 0.33), P < 0.01], upper limb movements could effectively improve the mean blood flow velocity of basilic vein [ MD = 1.65, 95% CI (1.19, 2.11), P < 0.01]. Conclusion: Upper limb movements can effectively decrease the incidence of phlebothrombosis and improve the mean flow velocity of basilic vein in the patients undergoing PICC. Other forms of physical prevention methods need to be further studied due to insufficient sample size.

PICC Upper Limb Movements Venous Thrombosis Blood Flow Velocity Meta-Analysis

1. Introduction

Peripherally inserted central catheter (PICC) is a kind of central venous catheter punctured by peripheral veins, such as the basilic vein, cubital median vein, cephalic vein [1]. While providing convenient and effective venous access for patients, PICC can also cause some complications, such as shedding, blockage, phlebitis, venous thrombosis, etc., among which venous thrombosis is the most serious, if the thrombus falls off, it will lead to fatal pulmonary embolism [2] [3]. How to prevent venous thrombosis is an urgent problem to be solved in clinical practice. The damage of blood vessel wall, slow blood flow and high blood coagulation state are the three main factors causing venous thrombosis. The endovascular intima was directly damaged during catheterization of PICC. At the same time, as a foreign body floating in the blood vessel for a long time, it can generate mechanical stimulation and affect normal hemodynamics, easily forming eddy-current and producing microthrombus. In addition, after the placement of PICC, patients will also suffer from pain, weakness, bed rest, worry and other factors, as well as physical reactions such as nausea and vomiting after chemotherapy, resulting in decreased voluntary activities, blood stasis, slow blood flow and easy formation of thrombosis. Other predisposing factors include the stimulation of blood vessels by drugs. Tumor cells damage the hypercoagulability of vascular endothelial cells by directly invading blood vessels or secreting vascular penetrating factors, and directly activate the coagulation system and the activation of a variety of coagulant substances to promote thrombosis. The prevention of thrombosis is mainly to use physical or drug methods to prevent the formation of three factors. Current guidelines [4] do not recommend drug treatment for venous thrombosis patients with PICC, therefore, it is urgent for us to find safe, simple and effective physical intervention measures to prevent venous thrombosis. Physical interventions refer to the methods that use physical principles such as motion, light, electricity, radiation, pressure and machinery to achieve the purpose of prevention. At present there are few studies about physical intervention measures for venous thrombosis in foreign countries, although there are more and more studies about the topic in China, the research standards and methods are different. The aim of this study was to evaluate the effect of various physical intervention methods for PICC venous thrombosis, in order to provide evidence and direction for future studies.

2. Materials and Methods2.1. Inclusion Criteria

1) Study design: randomized controlled trials (RCTs) about physical prevention of upper limb venous thrombosis in patients with PICC. 2) There was no significant difference in the general data between the two groups in age or gender (P > 0.05). 3) Patients: aged at least 18 years old; completed PICC for the first time; tolerate color ultrasound examination. 4) Interventions: the experimental group received physical prevention during PICC indentation, the control group didn’t receive intervention during PICC indwelling or received another form of physical prophylaxis. Specific physical mode: every day, the medical staff conducted guidance and supervision on the movement mode of the affected limb in different modes and frequencies. Regular exercise: the nurse only carries on the health education of the physical exercise mode to the patient, but does not supervise the implementation. 5) Outcome indicators: the main outcome indicators in this study were the incidence of venous thrombosis and the mean velocity of blood flow. Venous thrombosis and venous velocity were determined by color Doppler examination. Normal vein ultrasound showed thin, smooth vein wall, no echo in the lumen, the probe pressure lumen can be compressed, the color blood flow filling good. In the case of venous thrombosis, the inner diameter of the lumen increases, the wall thickens, there are low or moderate echoes around the catheter, and color Doppler flow signals are filled with defective or no color flow signals at all. Venous velocity was compared with that of the patient at steady state.

2.2. Exclusion Criteria

1) Multiple deep vein catheterization (>2 times); 2) use drug treatment for intervention.

2.3. Search Strategy

1) Searchable database: This study systematically searched relevant published original literatures in Chinese and English databases, including Pubmed, Web of sciene, EMbase, Ovid, Cochrane library, CBM, CNKI, Wanfang, VIP. The retrieval time is from their inception until August 2019. 2) Search terms: “arm exercise/make a fist/arm training/upper limb movement/limb function exercise”, “PICC/peripherally inserted central catheter”, “phlebothrombosis/venous thrombosis/thrombus of vein/venous embolism/deep vein thrombosis”, “prevention and control”.

2.4. Study Selection and Quality Evaluation

1) Study screening and data extraction: According to the consistent inclusion and exclusion criteria, the data was selected and extracted by two researchers independently, the two researchers have learned knowledge about evidence-based medicine, and received standardized training. Extract contents including basic information (author, year of publication, country, baseline situation, etc.), research design, sample size, interventions, outcome indicators, etc. Any disagreement was resolved by discussion with a third reviewer. 2) The two researchers independently evaluated the included studies according to Cochrane Assessment Manual 5.1.0 Assessment Criteria. The evaluation items included: random sequence generation, allocation hiding, blind method, data integrity of outcome indicators, selective reporting of findings and other sources of bias. A: fully meet the above criteria, the risk of a variety of bias is low; B: partially meet the above criteria, bias risk is moderate; C: completely dissatisfied with the above criteria, bias risk is higher. Both A and B studies were included in this study.

2.5. Statistical Analysis

Meta-analysis was performed using the RevMan5.3 software, provided by Cochrane collaboration network. Weighted mean difference (MD) was used for measurement data, such as the venous blood flow velocity. Relative Risk (RR) was used for enumeration data. 95% Confidence interval (CI) was calculated for all analyses. Firstly, Chi-square (X²) was used to confirm whether there was heterogeneity among the studies. If there was no significant statistical heterogeneity (P > 0.1, I² < 50%), the fixed effect model was adopted. If there was heterogeneity (P < 0.1, I² ≥ 50%), the random effect model was used to combine with the effect size. Descriptive analysis was adopted if heterogeneity was too obvious and can’t be judged.

3. Results3.1. Study Selection and Study Characteristics

A total of 579 trials were initially retrieved, 334 are Chinese and 245 are English. After screening, 24 literatures were finally included, and the specific steps of inclusion were shown in Figure 1. Three literatures [5] [6] [7] divided the intervention group into two groups (experimental group 1 and experimental group 2). The two groups had different exercise frequency, in order to make the data clearer and the consistency of intervention measures and outcome indicators, the two groups were divided into two RCTs. The basic features of the included articles are shown in Table 1.

3.2. Methodological Quality Evaluation of the Included Literature

The methodological quality of the included 24 trials was all of grade B. The baseline levels of the subjects were compared. Two of the studies [7] [8] made an intentionality analysis of the missing patients, and the specific evaluation indicators and results were shown in Table 2.

Table 1 Characteristics of the included studies

Included studies	Year	Nation	Objective	Sample size E/C	Interventions		Outcome indicator
Included studies	Year	Nation	Objective	Sample size E/C	E	C	Outcome indicator
Chen, B. [5]	2016	China	Tumour	40/40	Electronic grip	R	B + D
Zhang, M. [6]	2015	China	Hepatobiliary Surgery	20/20	Electronic grip	R	B + D
Zhou, Y. [7]	2015	China	Tumour	32/38	Elastic ball handgrip exercise	R	DVT + A
Rabinstein [8]	2019	USA	Neurocritical patients	31/31	Sequential compression devices	without pressure treatment	DVT
Hao, R. N. [9]	2016	China	Gastrointestinal tumor	83/83	Arm exercise	R	DVT
Li, L. [10]	2018	China	Hematological tumor	159/159	Active fist-making	R	DVT + A
Li, Q. [11]	2017	China	Tumor chemotherapy	113/110	Video combined with drawing exercise	R	DVT
Lun, X. P. [12]	2014	China	Tumor	43/43	Upper limb exercise	R	DVT
Ren, Y. C. [13]	2018	China	Tumour	52/52	Handgrip exercise	R	DVT + A
Wang, M. [14]	2016	China	Cerebrovascular disease	42/42	Active fist clenching	R	DVT + A
Wang, Y. P. [15]	2018	China	Tumour	42/42	Ball grip exercise	R	DVT
Wang, Z. Y. [16]	2017	China	Hematological tumor	87/88	Quantitative physical intervention	R	DVT
Wu, T. T. [17]	2017	China	Leukemia	76/84	Functional exercise	R	DVT
Xie, F. M. [18]	2019	China	Hematological tumor	87/88	Music grip strength training	R	DVT
Yin, R. H. [19]	2017	China	Tumour	60/60	Quantitative PICC functional exercise	R	DVT
Zhang, J. W. [20]	2019	China	Elderly patients	75/75	Fisting activity	R	DVT + A
Zhu, W. Y. [21]	2019	China	Tumor	42/42	Different ball holding motion patterns	R	DVT + A
Zou, X. M. [22]	2014	China	Breast cancer	80/80	Grip training	R	DVT
Xia, R. [23]	2010	China	SENILE tumor	60/60	Electric acupoint stimulation	R	DVT + A
Zhang, J. [24]	2019	China	tumor	137/137	Microwave hyperthermia combining with limb movement	R	DVT
Lin, L. Z. [25]	2018	China	tumor	150/150	Microwave physiotherapy	R	D
Wang, J. M. [26]	2013	China	cancer	45/45	Static and static pulse system	R	DVT
Zhu, B. Z. [27]	2019	China	tumor	86/85	Compression with sphygmomanometer	R	DVT
Jin, L. [28]	2015	China	tumor	100/100	Air wave pressure therapeutic apparatus	R	DVT

Note: A: blood flow velocity in axillary vein; B: the mean flow velocity of basilic vein; D: Blood vessel diameter; DVT: Incidence of deep vein thrombosis; R: regular exercise; C: control group; E: experimental group.

Table 2 Assessment of risk of bias

Included studies	Random sequence generation	Allocation concealment	Blinding of participants	Blinding of outcome assessment	Incomplete outcome data	Other bias	Quality grade
Chen, B. [5]	low	unclear	unclear	low	low	low	B
Zhang, M. [6]	unclear	unclear	unclear	low	low	low	B
Zhou, Y. [7]	low	unclear	unclear	unclear	low	low	B
Rabinstein [8]	low	low	high	low	high	low	B
Hao, R. N. [9]	low	unclear		unclear	low	low	B
Li, L. [10]	low	unclear	unclear	unclear	low	low	B
Li, Q. [11]	unclear	unclear	unclear	unclear	low	low	B
Lun, X. P. [12]	low	unclear	unclear	unclear	low	low	B
Ren, Y. C. [13]	low	unclear	unclear	unclear	low	low	B
Wang, M. [14]	unclear	unclear	unclear	unclear	low	low	B
Wang, Y. P. [15]	unclear	unclear	high	unclear	low	low	B
Wang, Z. Y. [16]	low	unclear	unclear	unclear	low	low	B
Wu, T. T. [17]	unclear	unclear	unclear	unclear	low	low	B
Xie, F. M. [18]	low	unclear	unclear	unclear	low	low	B
Yin, R. H. [19]	unclear	unclear	unclear	unclear	low	low	B
Zhang, J. W. [20]	low	unclear	unclear	unclear	low	low	B
Zhu, W. Y. [21]	low	unclear	unclear	unclear	low	low	B
Zou, X. M. [22]	low	unclear	unclear	unclear	low	low	B
Xia, R. [23]	unclear	unclear	unclear	unclear	low	low	B
Zhang, J. [24]	low	unclear	unclear	unclear	low	low	B
Lin, L. Z. [25]	low	unclear	unclear	unclear	low	low	B
Wang, J. M. [26]	unclear	unclear	high	unclear	low	low	B
Zhu, B. Z. [27]	low	unclear	high	unclear	low	low	B
Jin, L. [28]	low	unclear	unclear	unclear	low	low	B

3.3. Results of Meta-Analysis3.3.1. Effect of Upper Limb Exercise on Venous Thrombosis

15 literatures [5] [9] - [22] evaluated the effect of clenched fist exercise on venous thrombosis, and the combined results showed that there was no heterogeneity between the studies (I² = 0%, P = 1.00), the fixed effect model was used. The results showed that the incidence of phlebothrombosis in the upper limb exercise group was lower than that of the conventional exercise group, and the difference was statistically significant [RR = 0.23, 95% CI (0.16, 0.33), P < 0.01], as shown in Figure 2.

3.3.2. Effect of Exercise on the Venous Blood Flow Velocity of Basilic Vein

2 studies [5] [6] reported the effect of exercise on the venous blood flow velocity

of basilic vein of patients with PICC. The combined results showed that there was no heterogeneity between the studies (I² = 0%, P = 0.70), there is no heterogeneity. By using the fixed effects model, the results showed that the venous blood flow velocity of basilic vein in the exercise group movement is faster than that of the routine group, the difference was statistically significant [RR = 1.65, 95% CI (1.19, 2.11), P < 0.01], as shown in Figure 3.

3.3.3. Effect of Exercise on Blood Flow Velocity in Axillary Vein

6 studies [5] [10] [13] [14] [20] [21] evaluated the effect of exercise on the blood flow velocity of axillary vein in patients with PICC. 3 studies [5] [20] [21] were excluded for inconsistent thrombotic measurement time, but heterogeneity still existed (I² = 92%, P < 0.001), as shown in Figure 4. Descriptive analysis showed that all the 6 studies indicated that the velocity of axillary vein after exercise was faster than that of conventional exercise, and the difference was statistically significant (P < 0.05).

3.3.4. Effect of Bioelectrical Stimulation on Thrombosis

1 literature [23] evaluated the effect of electrical stimulation on vein of patients with PICC catheterization. It was concluded that the difference of axillary vein blood flow velocity and the incidence of deep venous thrombosis between the experimental group and the control group was statistically significant.

3.3.5. Effect of Microwave on Vein Thrombosis in Patients with PICC Catheterization

2 literatures [24] [25] evaluated the effect of microwave on vein thrombosis in patients with PICC catheterization. One literature [24] showed that the incidence of venous thrombosis in microwave group was lower than that in control group, and the difference was statistically significant (P < 0.05). One literature

[25] evaluated the effect of microwave on the diameter of basilic vein in patients with PICC catheterization. The result showed that the inner diameter of cardinal vein in microwave group was significantly dilated with higher success rate at a time than that of control group and the difference was statistically significant (P < 0.05). Due to the different outcome indexes of the two literatures, meta-integration could not be carried out, and only descriptive analysis was conducted.

3.3.6. Effect of Pressure on Venous Thrombosis in Patients with PICC

3 domestic studies [26] [27] [28] evaluated the effect of pressure on venous thrombosis in patients with PICC. Heterogeneity showed that fixed effect model should be selected to analyze (I² = 0%, P = 0.96). The results showed that the incidence of thrombosis in the pressure group was lower than that of the conventional exercise group, and the difference was statistically significant [RR = 0.22, 95% CI (0.09, 0.55), P < 0.01], as shown in Figure 5.

3.3.7. Sensitivity Analysis and Publication Bias

Funnel plot analysis was performed on 15 literatures [5] [9] - [22]. Through sensitivity analysis about the above combined results, the meta-analysis results had no change, suggested that the results of this study are stable. Scatter plots show a symmetrical distribution. The test results of 15 studies are symmetrical without publication bias, as shown in Figure 6.

3.3.8. Effect of Catheter Material on Venous Thrombosis in PICC Patients

In this paper, 14 [5] [6] [7] [9] [11] [13] [15] [17] [20] [23] [24] [25] [26] [27] studies mentioned that the PICC catheters used are all Brands, and 9 [10] [12] [14] [15] [16] [19] [21] [22] [28] studies did not describe the brands, this is consistent with Li Xin [29]. Related studies [30] [31] pointed out that the incidence of complications of domestic PICC in patients with PICC catheterization was

20% (6/30) and 10.3% (7/68), which was the same as foreign brands (8% - 50%) [32]. Meanwhile, Seckold, T. pointed out that there was no difference in the total incidence of complications of catheters in terms of materials, but the types of complications were different. The incidence of complications of PICC catheters of different brands is shown in Table 3.

4. Discussion4.1. Effect of Physical Exercise on the Incidence of Thrombosis in Patients with PICC

There are many ways to prevent thrombus in patients with PICC. The results of meta-analysis show that all kinds of upper limb movements can reduce the incidence of thrombus in patients with PICC and accelerate the blood flow speed of venous catheterization. Although there are different forms of upper limb movements, they can through the movement of upper limbs to accelerate the blood flow speed of the limb on the side of catheterization, promote the venous and lymphatic circulation, so as to reduce the incidence of thrombus. Some studies have confirmed that [33] [34], compliance of exercise is positively related to the incidence of thrombus in patients with PICC, patients with good compliance have better exercise effect than patients with regular exercise, and the incidence of thrombus is low. It may be due to the lack of supervision of the patients in the

Table 3 The incidence of complications of PICC of different brands

Brand	Complication incidence	Normal cases	Total cases	Total complication rate
Kangxin [30]	7	61	68	10.3%
Domestic brands [31]	6	24	30	20%
Foreign brands [32]	-	-	3767	8% - 50%

Note: “-” means no relevant data.

routine exercise group, few of them aware the importance of exercise, fear of the adverse consequences of the activity on the body, resulting in the failure of the exercise intensity and frequency to reach the standard, therefore, the blood flow of the limb on the catheter side is slow, which is easy to cause thrombosis. This study failed to confirm that bioelectric stimulation and microwave can reduce the incidence of venous thrombosis in patients with PICC, which may be related to the fact that this study is less involved in related studies, the implementation process of bioelectricity is relatively cumbersome, and the cost is high, the number of patients received in clinical is less or the intervention time is short, etc., and it is expected that large sample and high-quality randomized controlled trials to be further explored.

The relationship between pressure and venous thrombosis is uncertain. Domestic studies [26] [27] [28] have confirmed that intermittent pressure can reduce the incidence of venous thrombosis. This study found that the upper limb movements can effectively improve the average blood flow velocity of the vein and slow down the formation of thrombus. Therefore, effective education should be provided to patients with PICC, reasonable limb movements and physical therapy should be guided to reduce their fear of exercises and physical pain, and improve patients’ compliance and initiative of exercise. However, the incidence of PICC catheterization in foreign countries is low, only one study included, so the sample size is small, and in the course of the study, the treatment group was forced to suspend the experiment due to the high incidence of thrombus, and the integrity of the outcome data was affected. Therefore, more high-quality RCTs and multilingual literatures are needed to evaluate the effect of intermittent pressure on thrombosis.

PICC with different brands, types and materials have been used in China. According to the survey [29], more than 94.6% of PICC catheters in the market are imported brands such as BARD, USA, BD, ARROW, MEDCOMP, B BRAUN, while the utilization rates of domestic brands are low, such as BAIDUOAN and EILANG, which may be related to the late start of PICC in China. With the improvement of catheterization and maintenance technology of domestic PICC, and the gradual improvement of the brand, its complications are also decreasing, and the price is half of that of imported brands [30], so it may be more suitable for patients in China. However, there are fewer literature about the related complications of domestic brands, more high-quality RCTs studies are needed for the comparing between domestic and foreign brands, to promote the development of intravenous therapy specialty in China.

4.2. Limitations of This Study

Most RCTs included are Chinese, only one [8] is English, and this study only retrieves the published Chinese and English trials, some trials may not be included. There are great differences in the sample and methodology of the included studies, and the intervention schemes are not consistent, which may have a certain impact on the results of the study. Some studies did not illustrate the generation of random sequence and blinding of allocation, which may also affect the results of Meta analysis. In addition, the quality of the studies included in this study is low, there is a certain risk of bias, and the effect of exercise needs to be further studied and practiced. It is suggested that future research should standardize the interventions. For example, the exercise of mode, method, frequency, intensity, measurement time and standard of outcome indicators, etc., should be refined and specific economic conditions and willingness of the patients should to be taken into consideration, so as to improve the consistency of the prevention. In the future, we can expand the sample size and carry out high-quality randomized controlled trials to validate the effect of standardized physical prevention on venous thrombosis of patients with PICC, and provide more comprehensive theoretical support for clinical nursing staff.

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

Cite this paper

Li, C.M., Liang, X., Cao, S.L., Zhou, H. and Zhang, H.Y. (2020) Effect of Physical Intervention on Preventing Upper Limb Venous Thrombosis of Patients with PICC: A Systematic Review and Meta-Analysis of Randomized Trials. Yangtze Medicine, 4, 241-253. https://doi.org/10.4236/ym.2020.44023

References1

Gorski, L.A. (2017) The 2016 Infusion Therapy Standards of Practice. Home Healthcare Now, 35, 10-18. https://doi.org/10.1097/NHH.0000000000000481

Feng, Z.C. and Zhang, H. (2011) Progress in Prevention and Treatment of PICC-Related Venous Thrombosis in Cancer Patients. Chinese Journal of Misdiagnosis, 11, 6325-6326.

Cooray, R. and Lake, C. (2015) Prevention of Deep Vein Thrombosis and Pulmonary Embolism. Anaesthesia & Intensive Care Medicine, 16, S1472029915001563. https://doi.org/10.1016/j.mpaic.2015.06.017

Lyman, G.H., Bohlke, K., Khorana, A.A., et al. (2015) Venous Thromboembolism Prophylaxis and Treatment in Patients with Cancer: American Society of Clinical Oncology Clinical Practice Guideline Update 2014. Journal of Clinical Oncology, 33, 654-656.https://doi.org/10.1200/JCO.2014.59.7351

Chen

,et al. (2016)Effect of Different Fist Clenching Methods on Flow Rate and Diameter of the Basilic Vein before and after PICC Placement Journal of Nursing 31, 47-49.

Zhang, M., Fang, X.X., Li, M.E., et al. (2015) Effect of Handgrip Exercise on Blood Flow Velocity and Blood Vessel Diameter Changes of Basilic Vein in Patients Wim Peripherally Inserted Central Catheter. China’s Practical Nursing, 31, 94-98.

Zhou, Y., Liu, K.Y. and Cui, Y. (2015) Best Handgrip Exercise in Prevention of Upper Extremity Deep Vein Thrombosis after PICC. Jiangsu Medical Journal, 41, 1303-1305.

Rabinstein, A.A., Hellickson, J.D., Macedo, T.A., et al. (2019) Sequential Pneumatic Compression in the Arm in Neurocritical Patients with a Peripherally Inserted Central Venous Catheter: A Randomized Trial. Neurocritical Care, 901, 1-6. https://doi.org/10.1007/s12028-019-00765-w

Hao, R.N., Hu, F. and Tang, W.B. (2016) Observation on the Effect of Arm Exercise on Prevention of Venous Thrombosis after Placing PICC in Patients with Gastrointestinal Tumor. Journal of Nursing, 23, 19-21.

Li, L., Mei, C.L., Liu, X.Y., et al. (2018) Effect of Active Fist-Making on Prevention of Upper Limb Vein Thrombosis Associated with Peripheral Venous Puncture Central Venous Catheterization (PICC). Medical Equipment, 31, 1-2.

Li, Q. and Xu, L.Z. (2017) Effect of Video Combined with Drawing Exercise on Prevention of Upper Limb Edema and Thrombosis in Patients with PICC Catheterization. General Nursing, 15, 2000-2001.

Lun, X.P., Chen, M.Y., Zhou, H.Y., et al. (2014) Application of Upper Limb Exercise in Prevention of Venous Thrombosis in Patients with PICC Catheterization. Journal of Clinical Medicine, 1, 966 + 969.

Ren

Y.C.

,et al. (2018)Prevention Effects of Handgript Exercise on Upper Extremity Venous Thrombosis in Patients with PICC Catheterization Chinese Journal of Thrombosis and Hemostasis 24, 1027-1029 + 1032.

Wang

,et al. (2016)Effect of Active Fist Clenching on Prevention of PICC-Related Upper Limb Venous Thrombosis Nursing Practice and Research 13, 141-142.

Wang, Y.P., Tang, L., Bao, Z.L., et al. (2018) Clinical Effect of Ball Grip Exercise on Patients with PICC Catheterization and Dietary Nursing Observation. Modern Digestion and Interventional Diagnosis and Treatment, 23, 200-201.

Wang

Z.Y.

,et al. (2017)Quantitative Physical Intervention to Prevent Blood Clots Blood Cancer Center Venipuncture Correlation Analysis Results Journal of Snake 29, 499-500.

Wu, T.T. and Mei, J.H. (2017) Effect of Functional Exercise on Prevention of Thrombosis after PICC Implantation in Leukemia Patients. Chinese Journal of Maternal and Child Health, 28, 62-63.

Xie, F.M., Huang, H.Q., Zhou, X.M., et al. (2019) Effect of Music Grip Strength Training on Prevention of PICC Catheters in Patients with Blood Tumor. Guangxi Medical Journal, 41, 1326-1328.

Yin, R.H., Wang, S.M. and Cai, Y.H. (2017) Application of Quantitative PICC Functional Exercise in PICC Patients. Nursing Research, 31, 3712-3714.

Zhang, J.W. and Fu, R. (2018) Effects of Fisting Activity in Preventing Deep Venous Thrombosis in Elderly Patients with PICC. Chinese Journal of Modern Nursing, 24, 440-442.

Zhu, W.Y. and Xu, Z.L. (2019) Analysis of the Effect of Different Ball Holding Motion Patterns on Venous Blood Flow and Related Thrombosis in Patients with PICC Catheterization. Journal of Clinical Medicine, 6, 80-81.

Zou

X.M.

,et al. (2014)Application Effects of Grip Training in Breast Cancer Patients with PICC Treatment PLA Nursing Journal 31, 68-70 + 76.

Xia, R., Li, Z.Y., Su, L., et al. (2010) Effects of Electric Acupoint Stimulation on Prevention of Elderly Tumor Patients with Deep Venous Thrombosis after PICC Operation. Chinese Journal of Modern Nursing, 16, 269-271.

Zhang, J., Li, A.M., Chang, Z.W., et al. (2019) Microwave Hyperthermia Combining with Iimb Movement Prevents Venous Thrombosis in ωncer Patients after PICC Catheterization. Journal of Nursing, 34, 67-68 + 77.

Lin, L.Z., Zhu, X.Y., Wu, Y., et al. (2018) Application Effects of Microwave Physiotherapy in PICC Puncture Catheterization in Patients with Neoplasms. Hebei Journal of Medicine, 40, 1117-1120.

Wang

J.M.

,et al. (2013)Clinical Observation on Prevention of PICC Venous Thrombosis in Cancer Patients with Static and Static Pulse System Journal of Nursing 20, 64-65.

Zhu, B.Z., Liang, S.F., Rong, J.C., et al. (2019) Study on Compression with Sphygmomanometer to Prevent Catheter-Related Venous Thrombosis after PICC. Contemporary Nurses, 26, 36-38.

Jin, L., Xu, Y.Z., Wang, X.C., et al. (2015) Observation on Effect of Air Wave Pressure Theraputic Apparatus for Prevention of PICC-Related Thrombosis. Nursing Research, 29, 952-953.

,et al. (2016)The Current Status of Peripherally Inserted Central Catheter Application among 147 Tertiary Grade A Hospitals in China Chinese Nursing Management 16, 729-732.

Zhu, S.S., Zhou, X.D., Chai, Y.P., et al. (2017) Application and Nursing of Kangxintm PICC Catheter in Patients with Neurosurgical Aneurysms. General Nursing, 15, 2121-2122.

Wu, Y.R., Wang, L., Gao, S.Y., et al. (2008) Application of Domestic PICC in Intravenous Infusion of Severe Patients in Neurology Department. Medical Theory and Practice, No. 7, 837-838.

Seckold, Tammy, Walker, et al. (2015) A Comparison of Silicone and Polyurethane. Journal of Vascular Access, 16, 167-177.https://doi.org/10.5301/jva.5000330

Wang, C.F., Mu, D., Zhang, Y.Y., et al. (2018) Effect of Exercise Diary on Arm Exercise Compliance of PICC Patients. Modern Clinical Nursing, 17, 48-52.

Zhou, X.M., Zhang, G.N., Ying, Y.P., et al. (2019) Effects of Teach Back on Fist Movement Adherence, Upper Extremity Venous Blood Flow Velocity and Catheter Related Complications in Hematologictumor Patients with PICC. Journal of Snake, 31, 127-130.