Distal Radial Research Articles

The effect of kaolin on postprocedural radial artery compression - randomized comparison

Abstract Background Mechanical compression is a standard method of postprocedural radial artery hemostasis. We investigated the use of this method and its combination with kaolin impragnated gauze patch as a new method of hemostasis. Methods We randomized 712 consecutive patients (pts) from our same day discharge program (age 66±8 years, 76% males) after coronary angiography (69%) and intervention (31%) from the proximal (PRA) and distal radial (DRA) approaches. Compression was performed by mechanical inflatable device with or without kaolin gauze : 241 versus (vs) 241 patients in proximal groups and 115 vs 115 pts in distal groups were compared. Postprocedural proximal radial artery patency was evaluated by reverse Barbeau test with finger oximetry testing. Time to hemostasis and access site complications were analyzed. Results Baseline characteristics were similar in all four groups - proximal with kaolin (PK+) and without kaolin (PK-), distal with kaolin (DK+) and without kaolin (DK-). Mean compression time was 57±20 min in PK+ vs 83±19 min in PK- groups (p<0.001) and 48±12 min in DK+ vs 63±12 min in DK- groups (p<0.001). In parallel, compression times were shorter in the distal groups compared to the corresponding proximal groups: (DK+ vs PK+; DK- vs PK-; both p<0.001). Postprocedural EASY grade II (<10cm) and III (> 10cm) hematomas occured more often in PRA (4,7% and 0,8%) in comparison with DRA (1,7% and 0%; p=0,03). There were no other local complications including the absence of proximal radial artery occlusion. Conclusions The use of kaolin in combination with mechanical radial artery compression was associated with shorter compression time in both PRA and DRA compared to mechanical compression alone. DRA was associated with an overall lower incidence of hematomas and also shorter compression time compared to the same PRA groups. No proximal radial artery occlusion was detected in our analysis.

A Comparative Study between Ultrasound-guided Concomitant Infraclavicular Plus Distal Median, Radial, and Ulnar Nerve Blockade Versus Infraclavicular Block Alone

Abstract Background: Peripheral nerve blocks can be used alone as the sole “surgical” anesthetic technique as the initial step in providing prolonged postoperative analgesia. There are studies, where accurate deposition of local anesthetic perineurally has the potential to improve the success rate and reduce the incidence of complications of the infraclavicular block. We hypothesized whether a combined block of the infraclavicular brachial plexus and distal median, radial, and ulnar nerves would accelerate upper extremity anesthesia compared with an infraclavicular block alone. Materials and Methods: This study was a prospective randomized control study conducted among 60 patients undergoing elective and emergency wrist and hand surgeries. A group of 30 patients received an infraclavicular block with 30 mL of a local anesthetic mixture containing 1% lignocaine with adrenaline and 0.25% bupivacaine from Group A. Group B received an infraclavicular block with 15 mL of local anesthetic mixture containing 1% lignocaine with adrenaline and 0.25% bupivacaine along with distal median, radial, and ulnar nerve blockade with 5 mL each of local anesthetic mixture containing 1% lignocaine with adrenaline and 0.25% bupivacaine. Pain score, assessment of sensory and motor functions, block performance time, and surgical anesthesia were observed. Results: The mean block performance time of Group A was 10.9 ± 1.1 min and Group B was 14.7 ± 0.5 min. The difference between the two groups’ block performance minutes was statistically significant (P < 0.001). The difference in the onset of the sensory block between the two groups was statistically significant (P < 0.001). The mean onset of motor blockade between the two groups was statistically very highly significant (P < 0.001). The mean of Group A was 5.0 ± 0.2 and Group B was 2.1 ± 0.4. Conclusion: From this study, we conclude that using an approximately equivalent dose of local anesthetics, combining ultrasound-guided infraclavicular block with distal median, radial, and ulnar nerve blockade shortens the onset time of sensory and motor block with improved block consistency compared to infraclavicular block alone.

TCT-1000 Ultrasound Evaluation of the Distal and Proximal Radial Artery Diameter in Latin American Population

TCT-1000 Ultrasound Evaluation of the Distal and Proximal Radial Artery Diameter in Latin American Population

TCT-1001 Distal Radial Artery Access for Recanalization of Radial Artery Occlusion in Percutaneous Coronary Interventions: Two-Year Follow-Up

TCT-1001 Distal Radial Artery Access for Recanalization of Radial Artery Occlusion in Percutaneous Coronary Interventions: Two-Year Follow-Up

TCT-992 Patient Characteristics Predicting Successful Distal Radial Artery Cannulation for Coronary Procedures

TCT-992 Patient Characteristics Predicting Successful Distal Radial Artery Cannulation for Coronary Procedures

TCT-1003 Comparison Between Hemodialysis and Non-Hemodialysis Cases for Radial Artery Occlusion Following Distal Radial Artery Approach

TCT-1003 Comparison Between Hemodialysis and Non-Hemodialysis Cases for Radial Artery Occlusion Following Distal Radial Artery Approach

Procedural Outcomes With Femoral, Radial, Distal Radial, and Ulnar Access for Coronary Angiography: A Network Meta-Analysis.

Radial artery access for coronary angiography or percutaneous coronary intervention (PCI) reduces the risk of death, bleeding, and vascular complications and is preferred over femoral artery access, leading to a class 1 indication by clinical practice guidelines. However, alternate upper extremity access such as distal radial and ulnar access are not mentioned in the guidelines despite randomized trials. We aimed to evaluate procedural outcomes with femoral, radial, distal radial, and ulnar access sites in patients undergoing coronary angiography or PCI. PubMed, EMBASE, and clinicaltrials.gov databases were searched for randomized clinical trials that compared at least 2 of the 4 access sites in patients undergoing PCI or angiography. Primary outcomes were major bleeding and access site hematoma. Intention-to-treat mixed treatment comparison meta-analysis was performed. From 47 randomized clinical trials that randomized 38 924 patients undergoing coronary angiography or PCI, when compared with femoral access, there was a lower risk of major bleeding with radial access (odds ratio [OR], 0.46 [95% CI, 0.35-0.59]) and lower risk of access site hematoma with radial (OR, 0.34 [95% CI, 0.24-0.48]), distal radial (OR, 0.33 [95% CI, 0.20-0.56]), and ulnar (OR, 0.50 [95% CI, 0.31-0.83]) access. However, when compared with radial access, there was higher risk of hematoma with ulnar access (OR, 1.48 [95% CI, 1.03-2.14]). Data from randomized trials support guideline recommendation of class 1 for the preference of radial access over femoral access in patients undergoing coronary angiography or PCI. Moreover, distal radial and ulnar access can be considered as a default secondary access site before considering femoral access. URL: https://www.crd.york.ac.uk/PROSPERO/; Unique identifier: 42024512365.

Comparison of the Effect of a 6-French Glidesheath Slender and a Conventional Sheath on Distal Radial Artery Occlusion: A Randomized Controlled Trial

BackgroundThere is a lack of randomized clinical trials on whether the 6-French (Fr) Glidesheath Slender (GSS; Terumo, Tokyo, Japan) is superior to the 6-Fr conventional radial sheath (CS) with respect to the early-term incidence of distal radial artery occlusion (dRAO) in patients who have undergone coronary angiography (CAG) and/or percutaneous coronary intervention (PCI) via distal transradial access. MethodsThis was a prospective, single-centre trial of patients who were randomized to undergo CAG and/or PCI with either a 6-Fr GSS or a 6-Fr CS. The primary end point was the incidence of dRAO at 24 hours postoperatively, evaluated using Doppler ultrasound. ResultsA total of 620 patients were included in the study. The baseline patient and procedural characteristics were similar among the 2 groups. For the primary end point, the incidence of dRAO at 24 hours after the procedure was 1.0% (3/314) in the GSS group and 3.6% (11/306) in the CS group (risk ratio, 0.266; 95% confidence interval, 0.075-0.943; P = 0.027) according to the intention to treat analysis. For the secondary end points, the incidence of proximal radial artery occlusion was 0.3% (1/314) in the GSS group and 2.3% (7/306) in the CS group (P = 0.029). Other secondary end points, including the puncture success rate, procedural outcomes, other puncture-related outcomes, and access-related complications were not significantly different in the 2 groups. ConclusionsThe use of a thin-walled and hydrophilic coating sheath can reduce the incidence of early-term dRAO in patients who undergo CAG and/or PCI via the distal transradial access. Clinical Trial RegistrationNCT05501925.

Topology-Optimized Splints: A Novel Approach for Management of Distal Radial Fractures.

Topology-Optimized Splints: A Novel Approach for Management of Distal Radial Fractures.

Ulnar Artery Approach Versus Distal Radial Artery Approach as An Alternative to Traditional Radial Approach in Coronary Intervention

Ulnar Artery Approach Versus Distal Radial Artery Approach as An Alternative to Traditional Radial Approach in Coronary Intervention

3-Fr steerable microcatheter system via the upper limb artery in RADPLAT for right maxillary cancer

Background To evaluate the efficacy of a catheter system using a 3-Fr sheath with a steerable microcatheter through right upper limb artery access for superselective intra-arterial cisplatin infusion and concomitant radiotherapy (RADPLAT) to treat right maxillary sinus squamous cell carcinoma (MS-SCC). Material and methods We retrospectively studied 46 sessions in eight patients treated between November 2020 and February 2023 using the catheter system briefly described below. A 3-Fr sheath was inserted into the distal radial, conventional radial, or brachial arteries. A coaxial catheter system with a 2.9-Fr steerable microcatheter and a 1.9-Fr microcatheter was advanced into the brachiocephalic artery. The right common carotid artery was selected by bending the tip of the steerable microcatheter. Coil embolization and intra-arterial cisplatin infusion after selecting each external carotid artery branch were achieved using this catheter system. Results Cisplatin infusion and coil embolization were successful in all sessions. Arterial occlusion at the sheath insertion sites was found in 29.4% (5/17) of the distal radial arteries and 33.3% (3/9) of the conventional radial arteries. No other major complications were observed during the procedure. Conclusion Using a 3-Fr catheter system with a steerable microcatheter through right upper limb artery access is a feasible method for RADPLAT in treating right MS-SCC.

Assessment of Pain Severity and Grip Strength as the Most Accurate Predictors of the Outcome of Treatment of Distal Radial Fractures.

Distal radial fractures are common injuries, accounting for approximately 25% of fractures in the paediatric population and up to 18% of all fractures in the elderly age group. Assessment of treatment outcomes of these fractures includes objective measurements of wrist joint range of motion and grip strength as well as subjective parameters such as the intensity of perceived pain, hand function and quality of life. The recent years have ushered in a trend towards using several outcome measures for a more comprehensive evaluation of the results of the treatment. The objective of this study was to investigate whether the assessment of pain severity and grip strength is sufficiently accurate for correct assessment of the outcome of the treatment of distal radial fractures. One hundred and two patients, 79 women (77%) and 23 men (23%), at a mean age of 54 years with distal radial fractures were treated operatively. Treatment outcomes were assessed at 3 and 6 months by measurements of intensity of pain (according to a numerical rating scale, NRS), grip strength (with a dynamometer) and hand function with the DASH questionnaire. The results of these measurements were compared in order to investigate the strength of the possible correlation between variables. An analysis of the correlation between the variables of interest at 3 and 6 months' assessment showed statistically significant correlations (Spearman rank test, R=0,26-0,41; p<0,01). The NRS correlated negatively with grip strength (less pain - greater strength) and positively with DASH scores (less pain - better hand function). The correlation between grip strength and the DASH was the strongest (Spearman rank test R=0,61; p<0,001, showing that greater power of the hand indicated better function, whereas weaker grip indicated worse function. 1. The severity of pain and the degree of weakness of the hand show (independently of each other) a very good correlation with the comprehensive assessment of hand function using the DASH questionnaire. 2. It follows that pain severity and hand weakness are sufficient to reliably assess the outcome of the treatment of a distal radius fracture.

Distal Versus Proximal Radial Intervention; Is It Really Worth of It?

Objectives: Distal transradial approach (dTRA) is a promising technique with a decreased risk of radial artery occlusion and puncture-related injuries. There has been no data which compare dTRA and proximal transradial approach (pTRA) in Turkish population group, so far. Thus, researchers aimed to compare the efficacy and safety of the dTRA versus the conventional pTRA in coronary procedures in this study. Methods: Between September 2021 and June 2022, patients scheduled for transradial angiography at a tertiary cardiac center were enrolled in this study. Patients were randomly selected to undergo coronary imaging using either the distal dTRA or the conventional pTRA in equal numbers. A total of 79 patients were randomized to the proximal approach, and 77 patients were randomized to the dTRA. The primary endpoint was defined as procedural failure. Results: The success rate of cannulation of the dTRA was significantly lower compared to proximal pTRA (pTRA [89.6%] and pTRA [79%] p=0.002). The rate of radial artery thrombotic complications was not different between groups (proxymal %10.6 vs. distal %5.8, p=0.288). The time of cannulation and total procedural time were longer in the dTRA group (20–40 min, median 25 min) compared to the proximal radial group (15–30 min, median 20 min) p = 0.005. However, this did not affect the total scope time duration 3.3 min. (1.6–6.4) versus 2.4 min (1.6–3.7). Conclusion: dTRA has a relatively long access time with no advantages in terms of thrombotic complications in the radial artery.

Evaluation of a 3D-Printed Reduction Guide for Minimally Invasive Plate Osteosynthesis of Short Oblique Radial Diaphyseal Fracture in Dogs: A Cadaveric Study.

This study aims to evaluate the clinical application of three-dimensional (3D)-printed custom reduction guides (3DRG) for minimally invasive plate osteosynthesis (MIPO) of short oblique radial diaphyseal fractures. Canine forelimb specimens (n = 24) were prepared and a diaphyseal short oblique fracture was simulated in the distal radius and ulna. Bone fragments were stabilized with the MIPO technique using a 3DRG (Group A), open reduction (Group B), or closed reduction with circular external skeletal fixation (ESF) (Group C). The diaphyseal short oblique fractures were created in each radius at one-third of the radial length from the distal radial articular surface. Surgical stabilization of the fractures was performed in each group. Pre and postoperative radiographic images were obtained to measure frontal angulation (FA), sagittal angulation (SA), frontal joint reference line angulation (fJRLA), sagittal joint reference line angulation (sJRLA), translational malalignment and fracture gap width. Surgical time was also measured. In the homogeneity test, differences in SA, sJRLA, craniocaudal translation and fracture gap before and after surgery had no significant difference among the three groups. On the other hand, differences in FA, fJRLA, mediolateral translation and surgical time before and after surgery had significant differences among the three groups. In the post hoc test, only surgical time showed a significant difference between the three groups, and group A showed the shortest surgical time. The use of 3DRG for MIPO of short oblique radial diaphyseal fractures in dogs is reliable for the alignment and apposition of fractures and reduces surgical time.

Adding Arthroscopy to Open Surgery with a VLP for Distal Radial Fractures Did Not Improve Function at 1 Year.

Adding Arthroscopy to Open Surgery with a VLP for Distal Radial Fractures Did Not Improve Function at 1 Year.

Distal Versus Proximal Radial Artery Access for Cardiac Catheterization: 1-Year Outcomes

Proximal radial artery (PRA) access for cardiac catheterization is safe but can jeopardize subsequent use of the artery because of occlusion. Distal radial artery (DRA) access in the anatomical snuffbox preserves the RA but safety and potential detrimental effects on hand function are unknown. We aimed to assess hand function and complications after DRA and PRA. In this single-center trial, 300 patients were randomly allocated 1:1 to cardiac catheterization through DRA or PRA. The primary end point of change in hand function from baseline to 1 year was a composite of the Quick Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire, hand grip test, and thumb-forefinger pinch test. The secondary end points included access feasibility and complications. Of 216 patients with 1-year completed follow-up, 112 were randomly allocated to DRA and 104 to PRA, with balanced demographics and procedural characteristics. Both groups had similar access site bleeding rates (DRA 0% vs PRA 1.4%, p = 0.25). Radial artery occlusion occurred in 1 PRA patient versus 2 in DRA. There was no significant difference in change of hand function, median (interquartile range) hand grip (DRA 0.7 [-3 to 4.5] vs PRA 1.3 [-2 to 4.3] kg, p = 0.57), pinch grip (DRA -0.1 [-1.1 to 1] vs PRA -0.3 [-1 to 0.7] kg, p = 0.66), and Quick DASH (DRA 0 [-6.6 to 2.3] vs PRA 0 [-4.6 to 2.9] points, p = 0.58). The composite of hand function was comparable between PRA and DRA. In conclusion, DRA is a safe strategy for cardiac catheterization, with a low complication rate. Compared with PRA, there is no increased risk of hand dysfunction or radial artery occlusion at 1 year.

Distal Versus Proximal Radial Arterial Access for Percutaneous Coronary Angiography and Intervention: Updated Meta-Analysis of Randomized Controlled Trials

Radial artery occlusion (RAO) is a major impediment to reintervention in patients who underwent proximal transradial access (p-TRA) for coronary catheterization. Distal transradial access (d-TRA) at the level of snuffbox distal to the radial artery bifurcation is a novel alternative to p-TRA. We conducted an updated meta-analysis of all available randomized controlled trials (RCTs) to compare the incidence of RAO between p-TRA and d-TRA, along with access site-related complications. PubMed, Web of Science, and Google Scholar were searched for RCTs published since 2017 to October 2023 comparing d-TRA and p-TRA for coronary angiography and/or intervention. Risk ratios (RRs) and mean differences (MDs) with 95% confidence intervals were calculated using the random-effects model for procedural and clinical outcomes for the 2 approaches. A total of 18 RCTs with 8,205 patients (d-TRA n = 4,096, p-TRA n = 4,109) were included. The risk of RAO (RR 0.31, 0.21 to 0.46, p ≤0.001) and time to hemostasis (minutes) (MD -51.18, -70.62 to -31.73, p <0.001) was significantly lower in the d-TRA group. Crossover rates (RR 2.39, 1.71 to 3.32, p <0.001), access time (minutes) (MD 0.93, 0.50 to 1.37, p <0.001), procedural pain (MD 0.46, 0.13 to 0.79, p = 0.006), and multiple puncture attempts (RR 2.13, 1.10 to 4.11, p = 0.03) were significantly higher in the d-TRA group. The use of d-TRA for coronary angiography and/or intervention is associated with a lower risk of RAO at the forearm and may preserve p-TRA site for reintervention in selective patients by reducing the incidence of RAO.

Sheath Tip Radial Artery Disruption as a Mechanism for Forearm Hematoma: Insights from the Distal Radial Artery Approach

Abstract Introduction Radial artery occlusion (RAO), Forearm Hematoma (FH), and compartmental syndrome are three well-recognized complications associated with radial artery (RA) access to percutaneous coronary intervention (PCI). There are disparate ways the RA can be damaged, from multiple needling attempts to adverse interactions between the radial sheath, exchange wire, and diagnostic or guiding catheter with the artery. Case presentation We describe a 49-year-old man who had PCI through his right distal RA (dRA) with a straightforward needle puncture, followed by placement of a Terumo® 10cm 6Fr Glidesheath Slender™. After primary PCI to the right coronary artery, right FH developed, but there was neither swelling at the dRA area nor in the hand. He had staged PCI to the left circumflex artery a few days later, and a radial arteriogram was performed using the same access site. This revealed a “circumferential dissection” in the RA, which was likely to have been caused by the tip of the initial radial sheath. Conclusion Hypothetically, the radial sheath can systematically traumatize the RA. It may be the common denominator for RA disruption, RA thrombosis, RAO, FH, and compartmental syndrome in a continuum. Urgent radial arteriography, whenever post-procedural FH is detected, allows for the source of forearm bleeding to be determined and addressed. Trialing this strategy against current watchful conservative management is warranted.

Vascular Complications of Percutaneous Coronary Intervention Via Distal Radial Artery Approach in Patients With Acute Myocardial Infarction With and Without ST-Segment Elevation.

Distal radial artery (DRA) access is a novel alternative to conventional radial artery access for coronary catheterization. This study investigated the incidence of vascular complications with percutaneous coronary intervention (PCI) from DRA access among patients with acute myocardial infarction (AMI) with and without ST-segment elevation. Between April 2018 and October 2019, a total of 131 consecutive patients underwent primary PCI for AMI, among whom DRA access was used in 116 (88.5%), comprising 77 with ST-segment elevation myocardial infarction (STEMI) and 39 with non-ST-segment elevation myocardial infarction. The mean patient age was 70.4 ± 12.9 years and 71.6% were male. Right DRA was used in 110 patients (94.8%). A 5 or 6 Fr sheath was used in the PCI procedure. Patient backgrounds, procedural characteristics, and procedural complications were retrospectively analyzed. Patency of the radial artery was examined using Doppler ultrasound. Minor bleeding (Bleeding Academic Research Consortium [BARC] 2) was observed in 2 patients (1.7%) while no major bleedings (BARC 3a, 3b, 3c, and 5) were observed. On the Early Discharge After Transradial Stenting of Coronary Arteries Study (EASY) hematoma scale, a grade III hematoma (≥10 cm) was observed in 1 patient (0.9%), and no patients with hematoma were > grade IV. Doppler ultrasound of the radial artery was performed on 95 patients (81.9%). The incidence of radial artery occlusion was 1.1% (n = 1). The door-to-balloon time for STEMI patients was 40.0 ± 30.8 minutes. The current study demonstrated that DRA access was associated with a low incidence of access-site complications within optimal revascularization time among patients with AMI who underwent PCI.

How to Omit the Potential Pitfalls in Distal Radial Access: Lessons From Cadaveric and CTA Analysis.

To verify the anatomical basis, ideal puncture sites, and potential pitfalls of the distal radial artery (dRA) in the anatomical snuffbox region for distal radial access (dTRA). Overall, 26 formalin-fixed upper limbs and computed tomography angiography (CTA) of the upper limbs of 168 consecutive patients were studied. Cadaveric dissection and dRA 3D reconstruction were used to evaluate the dRA route for dTRA. The puncture sites, dRA diameter, and angle of the dRA and tendons of the extensor pollicis brevis were also measured in the patients and cadavers. The cadaver dissection provided more insights than did the dRA 3D reconstruction. However, preoperative evaluation had better diagnostic accuracy (p=0.024). Puncture sites 1 and 3 had a high success rate (63.2% possible success rate, 191/302). The DISFAVOR theory was put forward, in which 8 types of potential pitfalls that may interrupt puncture procedure or lead to a surgical failure were observed, including occlusion, stenosis, tortuosity, arteriovenous fistula, angioma, different radial artery (RA) ramifications, radial veins, and cephalic veins. The mean diameter of dRA based on cadaver dissection and CTA was 2.53 (SD=0.73) and 2.63 (SD=0.69) mm, respectively. Furthermore, the minimum distance from the outer layer of dRA to the skin was 5.71 (SD=2.0) mm based on CTA. The angle between the dRA and tendons of extensor pollicis brevis (TEPB) based on cadaver dissection and CTA was 58.0° (SD=21.5°) and 51.8° (SD=16.6°), respectively. Puncture sites 1 and 3 were more suitable for the dTRA, and we put forward the DISFAVOR theory to summarize the 8 types of potential pitfalls during the use of dTRA.