Update on complications and their management during transradial cardiac catheterization

Radial artery pseudoaneurysm a rare complication after coronary angiography: A case report and systematic review of the reported cases

This is a case of 83 years old male who had radial artery pseudoaneurysm after cardiac catheterization. The diagnosis was through Doppler ultrasound and the patient was treated with thrombin injection and reported good outcomes. The literature also included 41 cases of pseudoaneurysm after catheterization. The mean age of patients was 68.5 years with a male prevalence of 49%. Onset of pseudoaneurysm ranged from 0 days (directly after the catheterization) to 150 days with a median of 5 days. The treatment of patients was mainly surgical (19 cases) followed by compression (either manual or TR band) (12 cases), thrombin injection (four cases), compression then surgery (three cases), compression then thrombin injection (one case), percutaneous endovascular repair using a covered stent (one case) and not reported in one case. All cases recovered well.

Randomized comparison of Glidesheath Slender with conventional 5Fr arterial sheaths for coronary angiography through the distal radial artery

BACKGROUND

The potential benefits of the thin-walled 5F Glidesheath Slender sheath in the distal transradial access (dTRA) have not been investigated. This study aimed to compare the Glidesheath Slender versus conventional 5Fr arterial sheaths in patients undergoing diagnostic coronary angiography (CAG) through the dTRA.

METHODS

A total of 352 consecutive patients with an indication for CAG were randomized (1:1) to Glidesheath Slender 5Fr versus a conventional 5Fr arterial sheath for dTRA. The primary endpoint was the rate of successful hemostasis at 30 minutes after sheath removal. Follow-up ultrasound of the right radial and distal radial artery was performed 7-10 days after the procedure.

RESULTS

After exclusion of patients where a 6Fr sheath or crossover of access site was required, 108 patients in the Glidesheath Slender and 105 patients in the conventional 5Fr arterial sheath group were included in the analysis. The crossover rate to conventional radial access and the rate of successful hemostasis at 30 minutes after sheath removal were similar between the two groups (18.9% in the Glidesheath slender vs. 22% in the control group; P=0.460, and 62% vs. 51.4%; P=0.118, respectively). The level of pain associated with the procedure was significantly lower in the Glidesheath Slender group (2.69 vs. 3.29 in the control group; P=0.02). No significant difference was recorded between the two groups in the rate of access-related complications.

CONCLUSIONS

Use of Glidesheath Slender for dTRA did not increase the rate of early hemostasis compared with conventional arterial sheath.

Safety of Retrograde Tibial-Pedal Access and Intervention in Patients with Single Remaining Non-Occluded Infra-Popliteal Runoff Artery

BACKGROUND

The adaptation of retrograde tibial-pedal access for peripheral angiogram and intervention is limited by the lack of operator experience and concern for small distal vessel injury. This study evaluates the safety of the retrograde tibial-pedal access for peripheral angiogram and intervention in patients with two vessel infra-popliteal artery chronic total occlusions, where the access point is the sole remaining non-occluded infra-popliteal artery.

METHODS

A retrospective analysis of 5687 consecutive patients who underwent peripheral angiograms by retrograde tibial-pedal access via the single remaining non-occluded infra-popliteal artery was performed. Patients who had retrograde tibial-pedal access at the sole remaining infra-popliteal artery confirmed by angiography were included. Clinical and ultrasound data of the accessed infra-popliteal vessel up to 6 months were collected.

RESULTS

The cohort consisted of 314 patients (152 males; mean age 77.9 years). At 6 months, access vessel complications occurred in 15 patients (4.8%). Access vessel occlusion occurred in 9 out of 314 patients (2.9%), arteriovenous fistula in 4 (1.3%), with spontaneous resolution in 2, pseudoaneurysm requiring thrombin injection in 2 (0.6%) and non-cardiovascular death in 1 (0.3%). No uncontrolled bleeding, procedure-related hospitalizations or limb amputations occurred.

CONCLUSIONS

Routine primary retrograde tibial-pedal access for lower extremity peripheral artery diagnostic angiography and intervention in patients with single infra-popliteal artery runoff can be safety performed in an outpatient setting with infrequent and manageable complications.

Comparison of distal transradial approach versus conventional transradial approach for coronary angiography and percutaneous coronary intervention: A prospective observational study

Background

Compared with the conventional transradial approach (TRA), there are limited data on the efficacy and safety of the novel distal transradial approach (DTRA). This study aimed to verify the effectiveness and safety of the DTRA for percutaneous coronary angiography and intervention. Besides, we also try to highlight the potential of the DTRA in reducing radial artery occlusion (RAO), shorter time to hemostasis, and improved patient comfort.

Methods

This single-center prospective observational study enrolled patients treated with DTRA (n = 527) in the first 9 months and with TRA (n = 586) in the next 8 months from May 2020 to December 2021. The primary endpoint was the proximal RAO rate at 30 days.

Results

Baseline data were similar between the two groups. The proximal radial artery occlusion rate at 30 days [2.3% vs. 7.0%], the success rate of puncture [86.4% vs. 96.7%], the Numeric Rating Scale score [1.97 ± 1.89 vs. 4.61 ± 2.68], and the incidence of postoperative subcutaneous hematoma and finger numbness [3.4% vs. 8.2%, 2.7% vs. 4.4%] were lower. The puncture time [6.93 ± 7.25 min vs. 3.18 ± 3.52 min] was longer, and the time until radial compression device removal was shorter [CAG: 138.61 ± 38.73 min vs. 191.6 ± 61.22 min, PCI:221.46 ± 62.45 min vs. 276.28 ± 76.39 min] in the DTRA group than TRA group (all P < 0.05). Multivariate logistic regression analysis revealed that the DTRA (OR 0.231, 95% confidence interval [CI] 0.088-0.769, P = 0.001),BMI<18.5 kg/m2 (OR 2.627, 95% CI 1.142-4.216, P = 0.004), Diabetes mellitus (OR 2.15, 95%CI1.212-3.475, P = 0.014), RCD removal time (CAG,min) (OR 1.091, 95% CI 1.013-1.441, P = 0.035) and RCD removal time (PCI,min) (OR 1.067, 95% CI 1.024-1.675, P = 0.022) were the independent risk factors of RAO 1 month after intervention procedure.

Conclusion

DTRA was found to a lower incidence of postoperative RAO and bleeding-related complications, shorter time to achieve hemostasis, and greater patient comfort.

Development and Validation of a Nomogram for Predicting Radial Artery Spasm During Coronary Angiography

This study describes an attempt to develop a user-friendly nomogram incorporating psychological factors to individually predict the risk of radial artery spasm. Patients consecutively recruited between June 2020 and June 2021 constituted the development cohort for retrospective analysis of the development of a prediction model. Least absolute shrinkage and selection operator regression combined with clinical significance was employed to screen out appropriate independent variables. The model's discrimination and calibration were subsequently evaluated and calibrated by using the C-index, receiver operating characteristic (ROC) curve, and calibration plot. Decision curve analysis was also performed to evaluate the net benefit with the nomogram, and internal validation was assessed using bootstrapping validation. The predictors included in the risk nomogram included "body mass index ," "anxiety score," "duration of interventional surgery," "latency time (time spent waiting in the catheterization laboratory)," "vascular circuity (substantial changes in the curvature of vessels)," and "puncture number." The derived model showed good discrimination with an area under the ROC curve of .77, a C-index of .771 (95% CI: .72-.822) and good calibration. Decision curve analysis indicated that the nomogram provided a better net benefit than the alternatives.

Comparison of the effects of three kinds of hand exercises on improving limb function in patients after transradial cardiac catheterization

Objectives

This study aimed to compare effects of different hand exercises on improving limb function in patients after transradial cardiac catheterization.

Methods

This single-center, randomized clinical trial was conducted from August 20, 2020, to July 20, 2021, at an academic medical center. A total of 102 participants were selected from a Class A tertiary hospital in Nanjing, China and randomized into three groups: finger exercise group (n = 34), acupoint massage group (n = 34), and handgrip exercise group (n = 34). Symptoms of edema and pain were defined as primary outcomes, while skin temperature and degree of bleeding as secondary outcomes, which were monitored and measured 1, 2, and 4 h, after the intervention.

Results

Among the 99 participants who completed the process, the palm edema was gradually relieved in the handgrip exercise group at 2 h (H = 6.710, P = 0.035) and 4 h (H = 10.060, P < 0.001) following the intervention. The edema of fingers in the handgrip exercise group was obviously relieved at 2 h (H = 9.353, P < 0.01) and 4 h (H = 10.699, P < 0.001) following the intervention compared with the other two groups. In addition, the pain score at 4 h (H = 7.048, P = 0.029) was clearly decreased in the handgrip exercise group. However, there was no significant difference in the punctured limb's skin temperature (H = 0.922, P = 0.631) and the degree of bleeding (H = 0.123, P = 0.940) among the three groups.

Conclusions

We found that handgrip exercise is more effective in reducing the edema of the limbs than finger exercise and acupoint massage.

German Radiological Society and the Professional Association of German Radiologists Position Paper on Coronary computed tomography: Clinical Evidence and Quality of Patient Care in Chronic Coronary Syndrome

This position paper is a joint statement of the German Radiological Society (DRG) and the Professional Association of German Radiologists (BDR), which reflects the current state of knowledge about coronary computed tomography. It is based on preclinical and clinical studies that have investigated the clinical relevance as well as the technical requirements and fundamentals of cardiac computed tomography. CITATION FORMAT: · Langenbach MC, Sandstede J, Sieren M et al. DRG and BDR Position Paper on Coronary CT: Clinical Evidence and Quality of Patient Care in Chronic Coronary Syndrome. Fortschr Röntgenstr 2023; 195: 115 - 133.

[German Radiological Society and the Professional Association of German Radiologists position paper on coronary computed tomography: clinical evidence and quality of patient care in chronic coronary syndrome]

This position paper is a joint statement of the German Radiological Society (DRG) and the Professional Association of German Radiologists (BDR), which reflects the current state of knowledge about coronary computed tomography (CT). It is based on preclinical and clinical studies that have investigated the clinical relevance as well as the technical requirements and fundamentals of cardiac computed tomography.

Clinical predictors and management for radial artery spasm: an Australian cross-sectional study

INTRODUCTION

The transradial approach for coronary artery catheterisation has increased in popularity compared to the transfemoral approach for patients undergoing percutaneous coronary interventions. However, radial artery spasm continues to be a major complication of the procedure. Current management strategies vary concerning radial artery spasm and there is limited evidence of practice in the Australian context.

AIM

To identify the predictors of radial artery spasm and the medications used for its prevention and management.

METHODS

A descriptive cross-sectional study was carried out over a three-month period in two tertiary hospitals in NSW, Australia. A self-administered pre-procedural survey was completed by patients undergoing coronary artery catheterisation. This survey collected socio-demographic data and assessed anxiety using the Spielberger State-Trait Anxiety Inventory. Procedural data, including length of procedure, equipment used, occurrence of radial artery spasm, and medications given, were collected post-procedure by the interventionalist.

RESULTS

Of the 169 participants, over half were male (59.8%) and aged 66 years or older (56.8%). Radial artery spasm was reported in 24 (14.2%) participants. Rates of spasm were significantly higher among females (66.6%, p = 0.004), those aged under 65 years (62.5%, p = 0.001) and those who reported a medical history of anxiety (33.3%, p = 0.0004). There were no significant differences in State and Trait anxiety scores among those who had RAS and those who did not. Logistic regression identified younger age as the only statistically significant predictor of RAS (OR 0.536; 95% CI 0.171-1.684; p = 0.005). To prevent radial artery spasm most patients received midazolam (n = 158; 93.5%), nitrates (n = 133; 78.7%) and/or fentanyl (n = 124; 73.4%) prophylactically. Nitrates were the most frequently administered medication to treat radial artery spasm (78.7%).

CONCLUSION

This study highlights that there is a need to develop a clearer understanding of the predictors of RAS, as identifying patients at risk can ensure prophylactic measures are implemented. This study identified nitrates as the preferred vasodilator as a preventative measure along with the use of sedation.

Ultrasound-Guided Dynamic Needle-Tip Positioning Method Is Superior to Conventional Palpation and Ultrasound Method in Arterial Catheterization

Background: Dynamic needle-tip positioning (DNTP) was shown to improve arterial cannulation efficiency with fewer complications than conventional palpation and ultrasound methods by some studies. However, this is still controversial, and we performed this meta-analysis to comprehensively assess its value in arterial cannulation. Methods: A literature search of randomized controlled trials was conducted, and 11 studies were finally included. Efficiency outcomes (first-attempt success, overall success, and total cannulation time) and complications (hematoma, thrombosis, posterior wall puncture, and vasospasm) were separately analyzed. Subgroup analyses in different populations under cannulation were also performed. Results: DNTP was associated with increased first-attempt success (pooled RR = 1.792, p < 0.001), overall success (pooled RR = 1.368, p = 0.001), and decreased cannulation time (pooled SMD = −1.758, p = 0.001) than palpation. DNTP gained even more advantage in small children and infants. No significant difference in these outcomes between DNTP and conventional ultrasound method was detected. Fewer hematoma occurred in DNTP than palpation (pooled RR = 0.265, p < 0.001) or traditional ultrasound (pooled RR = 0.348, p < 0.001). DNPT was also associated with fewer posterior wall punctures (pooled RR = 0.495, p = 0.001) and vasospasm (pooled RR = 0.267, p = 0.007) than traditional ultrasound. Conclusions: DNTP was a better choice in artery cannulation than conventional palpation and ultrasound method, especially in small children and infants.

Direct arterial puncture for hemodialysis, a neglected but simple and valuable vascular access

Introduction

The purpose of this study is to present the prevalence and effects of direct arterial puncture (DAP) for hemodialysis patients, and to introduce optimal option for the vascular access (VA) in certain hemodialysis patients with poor condition of vascular or cardiac function in a compelling situation.

Methods

This was a cross-sectional study. Demographic characteristics and laboratory data were extracted from the health care system. Relevant DAP information was collected by a questionnaire. Case-control matching was performed to compare the hemodialysis adequacy between DAP and other VAs.

Results

A total of 526 patients were selected for analysis by convenience sampling, of which 38 patients relied https://www.baidu.com/link?url=eaDh8Hn-yZGJyDB0_h4zBenKd7qY1yX-KNxO-qU49gktQOGTJJg3slTjIbG095st4hRfprQIHRjfhfeGOZyH73y8tvSUCwMmvWbUhyix2ZKon DAP for hemodialysis. The main reasons using DAP for hemodialysis included the cost of arteriovenous access creation or maintenance in 19(50%) patients and the poor condition of vascular or cardiac function in 14 (39.5%) patients. Some complications of DAP occurred, such as aneurysm or pseudoaneurysm in 16(42.1%) patients, infiltration in 12 (31.6%) patients. Differences in hemodialysis adequacy were not statistically significant between DAP and other types of VA.

Conclusion

In conclusion, DAP can meet the need of prescription hemodialysis, yet it has several limitations. Although the patients in our study were long-term dependent on DAP for hemodialysis with various reasons, we do not recommend DAP as a long-term vascular access if better options are available. However, DAP should not be overlooked to be a supplemental VA for hemodialysis with adequate blood flow and availability for individuals with poor condition of vascular or cardiac function in a compelling situation.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12882-022-02836-1.

The Design and Feasibility of the: Radial Artery Puncture Hemostasis Evaluation – RAPHE Study, a Prospective, Randomized, Multicenter Clinical Trial

Introduction and Aim

Radial artery approach angiography is the current gold standard for coronary status diagnostics and eventual percutaneous revascularization (PCI). Currently, application of adequate, patent hemostasis based physical torniquets are used for puncture site control, to avoid bleeding, radial artery occlusion and damage (RAO and RAD). The Radial Artery Puncture Hemostasis Evaluation (RAPHE) is a prospective, randomized, multicenter clinical trial designed to investigate new, simplified techniques of radial artery hemostasis utilizing physical compression free methods.

Methods and Results

The RAPHE study has been designed to evaluate the efficacy and safety of two non-compression based radial artery hemostasis methods: a 100% chitosan bioactive hemostatic dressing and a purpose-built radial potassium-ferrate based topical hemostasis disc. These devices will be investigated in a standalone configuration. Control group is a standard pneumatic airbladder-based compression device. A total of 600 patients will be enrolled in a three-way randomization (1:1:1) with two study and one control groups. Safety and efficacy endpoints are RAO, puncture site hematoma formation and RAD respectively, consisting of dissection, (pseudo)aneurism and/or fistula formation, measured post-procedure and at sixty days.

Conclusion

The results from this trial will provide valuable information on new, simplified methods of radial artery hemostasis options and possibly simplify post-puncture management of patients.

Clinical Trial Registration

[www.ClinicalTrials.gov], identifier [NCT04857385].

Safety and efficacy of coronary angiography and percutaneous coronary intervention via distal transradial artery access in the anatomical snuffbox: a single-centre prospective cohort study using a propensity score method

BACKGROUND

This study investigated the safety and efficacy of coronary angiography (CAG) and percutaneous coronary intervention (PCI) via distal transradial artery access (d-TRA).

METHODS

For this single-centre prospective cohort study, a total of 1066 patients who underwent CAG or PCI procedures from September 2019 to November 2020 were included. Patients were divided into two groups: the d-TRA group (346) and the conventional transradial artery access (c-TRA) group (720) based on access site. A total of 342 pairs of patients were successfully matched using propensity score matching (PSM) for subsequent analysis.

RESULTS

No significant differences in puncture success rate, procedural method, procedural time, sheath size, contrast dosage or fluoroscopy time were noted between the two groups. The puncture time in the d-TRA group was longer than that in the c-TRA group (P < 0.01), and the procedure success rate was lower than that in the c-TRA group (90.94% vs. 96.49%, P = 0.01). The haemostasis time in the d-TRA group was shorter than that in the c-TRA group (P < 0.01), and the visual analogue scale (VAS) was lower than that in the c-TRA group (P < 0.01). In addition, the prevalence of bleeding and haematoma in the d-TRA group was lower than that in the c-TRA group (1.75% vs. 7.31%, P < 0.01; 0.58% vs. 3.22%, P = 0.01, respectively). No significant difference in the incidence of numbness was noted between the two groups. No other complications were found in two groups.

CONCLUSION

d-TRA is as safe and effective as c-TRA for CAG and PCI. It has the advantages of improved comfort and fewer complications. Trail registration Chinese Clinical Trial Registry, ChiCTR1900026519.

Distal radial approach between theory and clinical practice.. Time to go distal!

Background

Transradial access (TRA), which has a minimal risk of problems such as radial artery occlusion (RAO), hemorrhage, spasm, and so on, is now considered the standard procedure for cardiac catheterization. The aim of the study is to present the distal transradial access (d-TRA) as a possible promising novel technique in the field of cardiac coronary interventions comparing it to the standard conventional TRA using primary and secondary endpoints, exploring its benefits and drawbacks as a new experience in Alexandria University. One hundred cases with variable indications for coronary interventions were randomized to two arms using systematic random sampling method, coronary interventions in the first one were done via d-TRA (50 patients) and in the second arm via conventional TRA group (50 patients).

Results

Technically, there were highly statistically significant differences between the two arms in favor of TRA regarding procedural success, number of punctures taken, Access time, Total procedural time, vasodilator used, and crossover to another access site; meanwhile safety profile parameters have showed statistically significant differences in favor of d-TRA regarding post-operative hematoma, AV fistula, post-operative pain and compression time, and there were no statistically significant differences regarding RAO although it occurred more in TRA group.

Conclusions

In the realm of cardiac intervention, the distal radial approach is a promising technique. When compared to TRA, we found it to be a viable and safe method for coronary angiography and interventions and it could be a real option for the interventionists in the near future, with a lower risk of radial artery blockage and no significant differences in wrist hematoma and radial artery spasm. The success rate of d-TRA is proportional to the steepness of the operator's learning curve and the quality of the examples chosen.

Distal or Traditional Transradial Access Site for Coronary Procedures: A Single-Center, Randomized Study

OBJECTIVES

This study aimed to compare the efficacy and safety of the distal transradial approach (dTRA) versus the conventional transradial approach (TRA) for coronary angiography and percutaneous coronary interventions.

BACKGROUND

The recommended approach for coronary procedures is TRA. However, it is associated with radial artery occlusion (RAO). The dTRA could potentially decrease the incidence of RAO.

METHODS

One thousand forty-two consecutive patients were randomized (1:1) to right dTRA or TRA. The primary endpoint was the rate of RAO, which was evaluated by Doppler ultrasound at 60 days after randomization.

RESULTS

Five hundred eighteen and 524 patients were randomized to dTRA and TRA, respectively. Follow-up Doppler evaluation of the radial artery was accomplished in 404 (78.0%) patients in the dTRA group and 392 (74.8%) in the TRA group. The rate of RAO was significantly reduced in the dTRA group compared with TRA group (3.7% vs 7.9%, respectively; P = 0.014). The rate of successful sheath insertion was lower in the dTRA group compared with the TRA group (78.7% vs 94.8%, respectively; P < 0.001). More punctures (median = 2 [IQR: 1-3] vs median = 1 [IQR: 1-2]; P < 0.001) and a longer time (120 vs 75 seconds; P < 0.001) were required for sheath insertion in the dTRA group compared with the TRA group. The hemostasis time was shorter in the dTRA group compared with the TRA group (60 vs 120 minutes; P < 0.001). The dose area product was higher in the dTRA group (median = 32,729 in the dTRA vs 28,909 cGy/cm² in the TRA group; P = 0.02). No significant differences were observed in the secondary safety endpoints (bleeding [Bleeding Academic Research Consortium ≥ 2] and severe radial artery spasm).

CONCLUSIONS

According to our study, dTRA was associated with a lower rate of forearm RAO, a shorter time of hemostasis, a higher crossover rate and dose area product, and a longer procedural time compared with TRA.

Distal transradial artery access for coronary angiography in a patient having rheumatoid arthritis-related severe arthropathies

Conventional radial access has become the default access for coronary angiography. Sometime, it is difficult to take a conventional radial access, especially in patients having severe arthropathies leading to limited wrist joint mobility. In such scenarios, distal transradial access (dTRA) can be adopted. We describe a case of an elderly male patient having rheumatoid arthritis with arthropathies. He presented to us with unstable angina; coronary angiogram was advised for ischaemia assessment. Right dTRA was adopted due to severe joint deformity at wrist joint, limiting joint extension. A successful coronary angiogram was performed via the right dTRA without major discomfort and complications. Haemostasis was secured with TR band radial artery compression device. In this case report, we have evaluated the importance of practising dTRA in a patient with severe arthropathies.

Radial artery access for neuroendovascular procedures: safety review and complications

Although enthusiasm for transradial access for neurointerventional procedures has grown, a unique set of considerations bear emphasis to preserve safety and minimize complications. In the first part of this review series, we reviewed anatomical considerations for safe and easy neuroendovascular procedures from a transradial approach. In this second part of the review series, we aim to (1) summarize evidence for safety of the transradial approach, and (2) explain complications and their management.

[Innovations in the endovascular treatment of peripheral arterial disease]

The cooperation of physicians, engineers and other sciences results in a steady launching of effective tools for vascular treatment, which further support the dominating position of endovascular therapy in the field of PAD. Parallel to the treatment options, non-radiation based image guidance is another area, where innovation helps to reduce radiation burden for patient and staff members without losing procedural quality and despite a growing number of radiation based procedures. Meanwhile, the available portfolio of endovascular tools allows to treat every vessel segment with results comparable to or even better then open surgery. This survey presents new techniques, tools and recently published results from related trials, which will probably have further influence on PAD treatment in the coming years.

Right aortic arch with mirror image branching found incidentally during coronary surgery

Right aortic arch with a left innominate (brachiocephalic) artery with mirror image branching (RAMI) is a rare congenital anomaly, and it is unusual to diagnose it in adulthood. There are very few cases of cardiac surgery being performed for acquired cardiac disease on a congenital RAMI patient. We present a patient who had an incidental finding of a RAMI anomaly found during coronary artery bypass surgery. Post-operatively computerised tomography showed both his congenital lesions and his bypass grafts.

Distal snuffbox versus conventional radial artery access: An updated systematic review and meta-analysis

BACKGROUND

A comprehensive comparison of available data in terms of vascular complications between distal and conventional transradial access is still partial and a net benefit of such approach has not yet been clearly demonstrated.

OBJECTIVE

To provide an updated comparison of complications between distal and conventional transradial access used to perform coronary angiography and/or percutaneous coronary intervention performing a systematic review and meta-analysis.

DATA SOURCES

Data were obtained searching MEDLINE, Scopus, and Web of Science for all investigations published any time to December 22, 2020 reporting a comparison between distal and conventional transradial access. The occurrence of radial artery occlusion was chosen as the primary outcome while the hematoma at access site and spasm as secondary and tertiary outcome, respectively.

STUDY ELIGIBILITY CRITERIA

Case-control studies comparing distal and conventional transradial access for coronary angiography and/or percutaneous coronary intervention. All studies included adult patients aged at least 18 years.

STUDY APPRAISAL AND SYNTHESIS METHODS

Overall, 7073 patients (mean age 57.9 and 58.4 years for distal and conventional transradial access, respectively), were analyzed. The rate of radial artery occlusion was significantly lower in the distal compared with the conventional group (2.1% vs 4.6%, p < 0.001). The pooled analysis, based on a fixed effect model confirmed a lower relative risk of occlusion when distal access is used (RR: 0.46, 95% CI: 0.31-069, p = 0.002, I² = 0%). Conversely, no differences in the risk of developing a hematoma at the access site or in the occurrence of a radial artery spasms were observed comparing the two groups (RR: 0.65, 95% CI: 0.37-1.13, p = 0.12, I² = 0% and RR: 0.88, 95% CI: 0.48-1.63, p = 0.001, I² = 0%, respectively).

LIMITATIONS

Only eight case-control studies met inclusion criteria.

CONCLUSION

This metanalysis confirmed a lower risk of radial artery occlusion using distal access and comparable performance in terms of hematoma, and radial artery spam risk.

Distal transradial access: a review of the feasibility and safety in cardiovascular angiography and intervention

BACKGROUND

Transradial access (TRA) has been considered as the default choice in cardiac catheterization. Although infrequent, vascular complications of this approach remain. Recently, the distal transradial approach (dTRA) in cardiac catheterization was reported by interventionalists.

METHODS

We retrieved the relevant literatures and reviewed the safety and feasibility of this novel approach in cardiac catheterization.

RESULTS

The dTRA for cardiac intervention has superior safety and satisfaction. As a novel approach for cardiac catheterization, access related complications should also be considered by operators, such as RAO, radial spasm, bleeding and haematoma, and injury of the superficial branch of the radial nerve.

CONCLUSIONS

The dTRA in cardiovascular angiography and intervention was safe and feasible.

Distal Radial Artery Access: The Future of Cardiovascular Intervention

Access sites for coronary intervention have been changing over the last several decades, from the femoral artery to the radial artery and then to the distal radial artery. Distal radial access, which was first used in 2017 and is still not recommended by the guidelines, shows a higher success rate and less complications than other sites; therefore, it might be the future for cardiovascular intervention. In this study, we reviewed almost all of the articles that are related to the distal radial access, from 2017 to present, and summarized the technique, success rate, advantages, disadvantages, and noncardiac use of this access site.