Chinese expert consensus on transradial access in percutaneous peripheral interventions

Transradial access(TRA)is a safe and comfortable approach and the preferred access for percutaneous coronary intervention.However,TRA is not widely used for peripheral interventions.Currently,there is a lack of data on patient selection,appropriate medical devices,complication prevention,and TRA adoption.Therefore,the Chinese Society of Interventional Oncology of the China Anti-Cancer Association organized nationwide experts to establish a Working Group of China Expert Consensus on TRA in percutaneous peripheral interventions in 2022,and jointly formulated this consensus to better promote the application of TRA in peripheral interventions to guide clinicians on patient selection,technical recommendations,and physician training.This consensus mainly focuses on the current situation,advantages and limitations of TRA in peripheral interventions,anatomical characteristics of the radial artery,patient selection,technical aspects,prevention and management of complications,radiation dose,and learning curve.A consensus was reached through a literature evaluation and by referring to the opinions of the expert group.

A comparative study on transradial vs transfemoral artery access for primary percutaneous coronary intervention in patients with acute myocardial infarction

Objective Comparative study on the feasibility,safety and outcome of transradial artery and transfemoral artery access for primary percutaneous coronary intervention (PCI) in patients with acute myocardial infarction(AMI).Methods Two hundred and eight patients with AMI episoded within 12 hours, male 159, female 49, age 58.9 ±11.9 (34～88)years, were randomly divided into transradial artery access for primary PCI (TRA pPCI) group of 106 cases and transfemoral artery access for PCI (TFA pPCI) group of 102 cases during Sept, 2000 to Aug, 2002. The protocols of the manipulation duration and the effect for TRA pPCI and TFA pPCI procedures were respectively compared, including the time of transradial artery puncture and the rate of puncture success at first time ; the time of guiding catheter engaging into target coronary ostium; the rate of patence in infarct related artery (IRA); total duration of manipulation and the successful rate.The incidence of complications such as bleeding, vessel injury,thrombi and embolism as well as the average stay of hospitalization between two groups was compared. The status and the incidance of vessel spasm were observed and the effect of medicine administration to prevent from and relieve the vascular spasm was evaluated. The time of Allen’s test before and after TRA pPCI , the inner diameter and the peak of blood velocity of the right and left radial artery were investigated with color Doppler vessel echography as well as the complications of radial artery were followed up 1 month after TRA pPCI procedure. Results Two cases in every TRA pPCI and TFA pPCI groups were crossed over each other because procedure of the transradial or transfemoral access was failure. One handred and six vessels (48 vessels in LAD,22 vessels in LCX and 36 vessels in RCA) associated with 28 vessels of total occlusion in TRA pPCI group and 102 vessels (51 vessels in LAD,18 veesles in LCX and 33 vessels in RCA) with 24 vessels in total occlusion in TFA pPCI group were angioplasticized . The successful rates of the first time puncture in access artery, the re patence IRA and pPCI were similar in TRA pPCI and TFA pPCI groups ( 93.4% vs 96.1% ;100% vs 100%; 96.2% vs 97.1% , P >0.05 ). There were no significant diffierence in the average time of puncture time of access artery ,engaging in target vessels of guiding catheters and the total procedure of PCI between the two groups ( 1.3 ±0.3s vs 1.2 ±0.3s ; 6.0 ±1.6min vs 5.8 ±0.9min ; 49.2 ±24.1min vs 46.5 ± 26.4min , P >0.05 ). The access artery complications such as bleeding ,hematoma and embolism as well the veneous thrombosis in TFA pPCI group were much more than those in TRA pPCI group(p< 0.01 ). Although slight artery spasm of 4.7% cases in TRA pPCI group was happened during the procedure of PCI , the procedure had being continued after administration of medicine to release the spasm. The time of Allen’s test ,diameter and the systolic velocity of blood in daul radial arteries were no significant change before and after pPCI.Conclusions The duration and effect by TRA pPCI for AMI with stable hemodynamics was similar to TFA pPCI. The complications such as of bleeding,vessel injury, thrombi and embolism by TRA pPCI were few, and it was unnecessary to discontinue the anticoagulation medicine. TRA pPCI might be selected as a access vessel for pPCI in AMI patients with stable hemodynamics.

A novel role of chitosan in reducing vascular access bleeding complications after transradial angiography

To investigate the safety and efficacy of chitosan ( Anscare,Daxon) in reducing vascular ac cess complications compared to a kind of radial compression device( TR-BAND,Terumo) . Method: We studied 128 patients who had undergone transradial angiography in our center from December 2009 to April 2010. Among them,64 patients were randomly treated with radial compression device ( TR-BAND,Terumo) when the procedure was over ( CD group) . The other 64 patients were dealt with chitosan ( CS group) . The compression time,the major and minor access site bleeding complications and the errhysis were observed. Results: There were no statistical differences in the baseline clinical characteristics of the patients between two groups. The compression time in CS group was significantly shorter than that of CD group ( P < 0. 001) . There were 12 patients suffering from minor access site bleeding while only 3 patients experienced these minor complications in CS group( 19% vs 4% ,P < 0. 05) . At the same time 20 patients had er- rhysis in CD group and 4 patients in CS group ( 31% vs 6% ,P < 0. 001) . Conclusion: Chitosan,compared to radial compression device ( TR-BAND,Terumo) ,can not only shorten the compression time,but also significantly reduce the rate of minor access site bleeding and puncture-site errhyis.

Hand dysfunction after transradial artery catheterization for coronary procedures

AIM To sythesize the available literature on hand dysfunction after transradial catheterization.METHODS We searched MEDLINE and EMBASE. The search results were reviewed by two independent judicators for studies that met the inclusion criteria and relevant reviews. We included studies that evaluated any transradial procedure and evaluated hand function outcomes post transradial procedure. There were no restrictions based on sample size. There was no restriction on method of assessing hand function which included disability, nerve damage, motor or sensory loss. There was no restriction based on language of study. Data was extracted, these results were narratively synthesized.RESULTS Out of 555 total studies 13 studies were finally included in review. A total of 3815 participants with mean age of 62.5 years were included in this review. A variety of methods were used to assess sensory and motor dysfunction of hand. Out of 13 studies included, only 3 studies reported nerve damage with a combined incidence of 0.16%, 5 studies reported sensory loss, tingling and numbness with a pooled incidence of 1.52%. Pain after transradial access was the most common form of hand dysfunction(6.67%) reported in 3 studies. The incidence of hand dysfunction defined as disability, grip strength change, power loss or any other hand complication was incredibly low at 0.26%. Although radial artery occlusion was not our primary end point for this review, it was observed in 2.41% of the participants in total of five studies included.CONCLUSION Hand dysfunction may occur post transradial catheterisation and majority of symptoms resolve without any clinical sequel.