Rate Of Access Site Complications Research Articles

TRIACCESS study: randomized comparison between radial, femoral and transpedal access for for percutanous supertfitial femoral artery angioplasty

Abstract Background Traditional access for the treatment of femoral artery lesions is the femoral artery (FA) approach, but radial (RA) and pedal access (PA) is an alternative access site. The aim of the study was to compare the success rate, complication rate of different access sites for the treatment of superfitial artery stenosis in a randomized study Methods 180 consecutive patients were randomized in a prospective study to treat symptomatic superficial femoral stenosis, via RA, FA and PA. Primary endpoint: technical success, rate of major and minor access site complications. Secondary endpoints: major adverse events (MAE), procedural factors, cross-over rate, and duration of hospitalization. Results Technical success was achieved in 96.6%, 100% and 100% patients in RA, FA and PA group (p=ns). Secondary access site was used in 30%, 3.3% and 30% in the RA, FA and PA access group (p<0.01). Stent implantation was done in the femoral artery in 26.6%, 58.3% and 71.6% cases in RA, FA and PA group (p<0.01). CTO recanalization was performed in 34/36 (100%), 30/30 (100%) and 45/45 (100%) cases successfully in RA, FA and PA group (p=ns). Contrast consumption, fluoroscopy and procedure time was not statistically different, but the X Ray dose was significantly lower in PA than in the RA and FA access group (63.1 vs 162 vs 153 Dyn). The cumulative rate of access site complications in the RA, FA and PA group was 3.3% (0% major and 3.3% minor), 15% (3.3% major and 11.6% minor) and 3.3% (0% major and 3.3% minor) (p<0.01), respectively. The cumulative incidence of MAE's at 6 months in the RA, FA and PA group was 8.3% vs 13.3% and 18.3%. (p<0.05) Conclusion Femoral artery intervention can be safely and effectively performed using radial, femoral and pedal access, but radial and pedal access is associated with less access site complication rate. Pedal access is associated with less X Ray dose than radial and femoral access. Funding Acknowledgement Type of funding source: None

Comparison of different access sites (radial, brachial and femoral) for subclavian artery intervention

Abstract Introduction The primary purpose of this multicenter prospective register was to evaluate the success and complication rate of different access sites for subclavian artery intervention. Secondary purpose was to investigate the safety of the distal radial artery access for subclavian artery intervention. Methods The clinical and angiographic data of 223 consecutive patients with symptomatic subclavian and anonym artery stenosis treated via transradial (TR), transbrachial (TB) and transfemoral (TF) access between 2015 and 2019 were evaluated in a multicenter registry. The exclusion criteria of the intervention was the acute proximal subclavian artery thrombosis. Primary endpoint: angiographic outcome of the subclavian and anonym artery intervention, rate of major and minor access site complications. Secondary endpoints: procedural complications, consumption of the angioplasty equipment, cross over rate to another puncture site and hospitalization in days. Results The procedure was successful in 182/184 in TR, in 5/5 in TB and in 32/32 patients in TF group. The cross over rate in the TR, TB and TF group was 0%. Chronic total occlusion recanalization was successful in 75/77 cases in TR, and 15/15 cases in the TF group. Contrast consumption was 152±106 ml in TR, 99±22.5 ml in TB and 152±95 in TF group, respectively (p=ns). Cummulativ dose was 602±1205 mGray in RA, 455±210 mGray in BA and 1089±1674 mGray in FA group (p<0.05). Procedural complications occurred in 1/184 (0.5%) case in RA group, in 0 case (0%) in BA group and in 4/32 cases (12.5%) in the FA group (p<0.05). Major access site complication were detected in 3 patients (1.6%) in RA, in 1 patient in BA (20%) and in 1 patient in FA group (3.1%) (p<0.05). Minor access site complication were encountered in 9 patients in the RA (4.8%), in 1 patient in the BA (20%) and in 8 patients in the FA group (25%) (p<0.05). Distal radial access was used in 29 cases and proximal radial access in 155 patients. The rate of radial artery occlusion in proximal and distal radial group was 5.1% and 0% (p<0.05). Conclusions Subclavian artery intervention can be safely and effectively performed using radial access with acceptable morbidity and high technical success. Femoral and brachial access is associated with more access site complications than radial artery access. Distal radial access is associated with less radial artery occlusion than proximal radial artery access. Funding Acknowledgement Type of funding source: None

Distal Radial Artery Access for Superficial Femoral Artery Interventions

Purpose: To compare the acute success and complication rates of distal radial (DR) vs proximal radial (PR) artery access for superficial femoral artery (SFA) interventions. Materials and Methods: Between 2016 and 2019, 195 consecutive patients with symptomatic SFA stenosis were treated via DR (n=38) or PR (n=157) access using a sheathless guide. Secondary access was achieved through the pedal artery when necessary. The main outcomes were technical success, major adverse events (MAEs), and access site complications. Secondary outcomes were treatment success, fluoroscopy time, radiation dose, procedure time, and crossover rate to another puncture site. Results: Overall technical success was achieved in 188 patients (96.4%): 37 of 38 patients (97.3%) in the DR group and 151 of 157 patients (96.2%) in the PR group (p=0.9). Dual (transradial and transpedal) access was used in 14 patients (36.8%) in the DR group and 28 patients (18.9%) in the PR group (p<0.01). Chronic total occlusions were recanalized in 25 of 26 DR patients (96.1%) and in 79 of 81 PR patients (92.6%) (p=0.57). The crossover rate to femoral access was 0% in the DR group vs 3.2% in the PR group (p=0.59). Stents were implanted in the SFA in 15 DR patients (39.4%) and in 39 patients (24.8%) in the PR group (p=0.1). The contrast volume, fluoroscopy time, radiation dose, and procedure time were not statistically different between the DR and PR groups, nor were the rates of access site complications (2.6% and 7.0%, respectively). The cumulative incidences of MAE at 6 months in the DR and PR groups were 15.7% vs 14.6%, respectively (p=0.8). Conclusion: SFA interventions can be safely and effectively performed using PR or DR access with acceptable morbidity and a high technical success rate. DR access is associated with few access site complications.

Access-Site Complications in Transfemoral Neuroendovascular Procedures: A Systematic Review of Incidence Rates and Management Strategies.

The femoral artery is the most common access route for cerebral angiography and neurointerventional procedures. Complications of the transfemoral approach include groin hemorrhages and hematomas, retroperitoneal hematomas, pseudoaneurysms, arteriovenous fistulas, peripheral artery occlusions, femoral nerve injuries, and access-site infections. Incidence rates vary among different randomized and nonrandomized trials, and the literature lacks a comprehensive review of this subject. To gather data from 16 randomized clinical trials (RCT) and 17 nonrandomized cohort studies regarding femoral access-site complications for a review paper. We also briefly discuss management strategies for these complications based on the most recent literature. A PubMed indexed search for all neuroendovascular clinical trials, retrospective studies, and prospective studies that reported femoral artery access-site complications in neurointerventional procedures. The overall access-site complication rate in RCTs is 5.13%, while in in non-RCTs, the rate is 2.78%. The most common complication in both groups is groin hematoma followed by access-site hemorrhage and femoral pseudoaneurysm. On the other hand, wound infection was the least common complication. The transfemoral approach in neuroendovascular procedures holds risk for several complications. This review will allow further studies to compare access-site complications between the transfemoral approach and other alternative access sites, mainly the transradial approach, which is gaining a lot of interest nowadays.

Endovascular treatment for long segment iliac artery occlusion involving the iliac artery opening

ObjectiveThis retrospective nonrandomized study investigated the outcomes of endovascular therapy for long-segment iliac artery occlusion involving the iliac artery opening. MethodsDuring a 5-year period (from Mar 2012 to Mar 2017), 32 patients (two women and 30 men; mean age, 69.0 years; range, 51–90 years) received endovascular therapy, with or without catheter-directed thrombolysis (CDT), for long-segment iliac artery occlusion (mean lesion length, 129.8 mm; range, 74.7–189.3 mm). ResultsThe technical success rate was 90.6% (29 of 32). The major complication rate was 3.5%, but no in-hospital mortality was recorded. The access site complication rate was 10.3%. The clinical symptoms of 29 patients were significantly improved. All 29 patients were followed up for 6–40 months, with an average of 16.7 ± 10.9 months. The primary patency rates were 96.6 ± 3.4% at 6 months, 86.6 ± 7.3% at 12 months, 79.4 ± 9.6% at 24 months, and 66.2 ± 14.5% at 36 months. ConclusionsDepending on the characteristics of the disease, endovascular treatment with an individualized, rational choice of approach and with fine-tuning of the operation is a safe and effective treatment for long-term iliac artery occlusion involving the opening of the iliac arteries. Customization of the treatment is also the key to a successful operation and to ensuring good postoperative efficacy.

Comparison of Frequency of Vascular Complications With Ultrasound-Guided Versus Fluroscopic Roadmap-Guided Femoral Arterial Access in Patients Who Underwent Transcatheter Aortic Valve Implantation

To compare outcomes of ultrasound guidance (USG) versus fluoroscopy roadmap guidance (FG) angiography for femoral artery access in patients who underwent transfemoral (TF) transcatheter aortic valve implantation (TAVI) to determine whether routine USG use was associated with fewer vascular complications. Vascular complications are the most frequent procedural adverse events associated with TAVI. USG may provide a decreased rate of access site complications during vascular access compared with FG. Patients who underwent TF TAVI between July 2012 and July 2017 were reviewed and outcomes were compared. Vascular complications were categorized by Valve Academic Research Consortium-2 criteria and analyzed by a multivariable logistic regression adjusting for potential confounding risk factors including age, gender, body mass index, peripheral vascular disease, Society of Thoracic Surgeons score and sheath to femoral artery ratio. Of the 612 TAVI patients treated, 380 (63.1%) were performed using USG for access. Routine use of USG began in March 2015 and increased over time. Vascular complications occurred in 63 (10.3%) patients and decreased from 20% to 3.9% during the study period. There were fewer vascular complications with USG versus FG (7.9% vs 14.2%, p = 0.014). After adjusting for potential confounding risk factors that included newer valve systems, smaller sheath sizes and lower risk patients, there was still a 49% reduction in vascular complications with USG (odds ratio 0.51, 95% confidence interval 0.29 to 0.88, p = 0.02). In conclusion, USG for TF TAVI was associated with reduced vascular access site complications compared with FG access even after accounting for potential confounding risk factors and should be considered for routine use for TF TAVI.

Outcomes of Open Versus Percutaneous Access for Patients Enrolled in the GREAT Registry

Arterial access and device delivery in endovascular aortic repair (EVAR) and thoracic endovascular aortic repair (TEVAR) have evolved from open femoral or iliac artery exposure to selective percutaneous arterial access. Although regional application of percutaneous access for these 2 procedures varies widely, the use of this technique continues to increase. Currently, differences in the use of percutaneous access between EVAR and TEVAR have not been well explored. The Gore Global Registry for Endovascular Aortic Treatment (GREAT) registry collected relevant data for evaluation of these issues and the comparative results between open and percutaneous approaches in regard to complication rates and length of stay (LOS). This study was performed via a retrospective review of patients from the GREAT registry (Clinicaltrials.gov no. NCT01658787). The primary variable of this study was access site complications including postoperative hematoma, vessel dissection, and pseudoaneurysm. Patients were categorized by abdominal (EVAR) and thoracic (TEVAR) aortic procedures using percutaneous-only, cutdown-only, and combined vascular access techniques for a total of 6 groups. Standard statistical methodology was used to perform single-variable and multivariable analysis of a variety of covariates including LOS, geographical location of procedure, procedural success rate, and access sheath size. Of 4,781 patients from the GREAT registry, 3,837 (80.3%) underwent EVAR and 944 (19.7%) underwent TEVAR with percutaneous-only access techniques being used in 2,017 (42.2%) and cutdown-only in 2,446 (51.2%). There was variable application of percutaneous access by geographic region with Australia and New Zealand using this technique more frequently and Brazil using percutaneous access the least. No significant difference in the rate of access site complications was detected between the 6 groups of patients in the study; however, significantly lower rates of access site complications were associated with percutaneous-only compared with both cutdown-only and combined techniques (P=0.03). In addition, associated with significantly higher rates of access site complications was longer LOS (P<0.01). Average LOS was 5.2days and was higher in the TEVAR group (10.1days) than that in EVAR (4.0days, P<0.05). Increased sheath size does not appear to increase the risk of access site complication. There was no significant difference found in the complication rate between percutaneous and cutdown access techniques. This analysis demonstrates that percutaneous-only access is safe, has low complication rates, and has lower LOS compared with open access or combined access techniques.

Lower complication rates associated with transradial versus transfemoral flow diverting stent placement

BackgroundCurrently, there are no large-scale studies in the neurointerventional literature comparing safety between transradial (TRA) and transfemoral (TFA) approaches for flow diversion procedures. This study aims to assess complication rates...

Radial versus femoral access for percutaneous coronary intervention in patients with ST-segment elevation myocardial infarction: Trial sequential analysis

Randomized controlled trials (RCTs) have yielded conflicting results about the impact of transradial access (TRA) versus transfemoral access (TFA) in patients with ST-segment elevation myocardial infarction (STEMI). We performed a trial sequential analysis (TSA) of RCTs comparing TRA and TFA in patients with STEMI. The outcomes of interest were 30-day mortality, major bleeding, major adverse cardiovascular events (MACE), myocardial infarction (MI), stroke, and access site complications. A total of 17 studies with 11,992 patients were included in the current TSA. The TRA group had lower 30-day mortality (risk ratio [RR] 0.72, 95% CI 0.58-0.90, P = .003), major bleeding (RR 0.62, 95% CI 0.49-0.79, P = .0001), MACE (RR 0.74, 95% CI 0.58-0.93, P = .01), and access site complications (RR 0.37, 95% CI 0.28-0.48, P < .00001). There was no difference in MI and stroke between the 2groups. Applying TSA boundaries, the z-curve for 30-day mortality, major bleeding, MACE and access site complications crossed the conventional and the TSA boundaries, indicating firm evidence for better outcomes in the TRA group. For MI and stroke, the z-curve failed to cross the conventional and the TSA boundaries for both outcomes, indicating lack of signals of benefit or harm. In the current TSA, the available data from RCTs support improved 30-day mortality, major bleeding, MACE and access site complication rates in STEMI patients treated by PCI through the radial access.

Access-Site Complications in Mechanical Thrombectomy for Acute Ischemic Stroke: A Review of Prospective Trials.

A shift has occurred in interventional cardiology from transfemoral to transradial access due to a 70%-80% decrease in complications. This shift has not yet taken place in other interventional specialties, perhaps owing to the lack of generalizability of findings in the cardiology data. Our aim was to assess data from the recent mechanical thrombectomy prospective trials to better understand the access-site complication rate. Articles were systematically sourced from the National Center for Biotechnology Information PubMed archive. According to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, prospective, randomized controlled trials published after 2008 with mention of major and/or minor femoral access-site complications in neuroendovascular mechanical thrombectomies were included. Major and minor femoral access-site complications were extracted. A total complication rate was calculated with major access-site complications alone and combined with minor access-site complications. Seven prospective studies of 339 total screened met the inclusion criteria. Eleven major access-site complications were identified in of 660 total interventions, revealing a major access-site complication rate of 1.67% for patients undergoing mechanical thrombectomy with transfemoral access. If minor access-site complications were included, 35 total incidents were detected in 763 interventions, resulting in a total complication rate of 4.59%. Multiple unspecified vessel and procedure-related complications were mentioned in the studies. The overall rate of major access-site complications was 1.67% in this review, which is not low and poses a risk to patients. We suggest further investigation into the feasibility and complication rates of alternative access sites for neurointerventional procedures.

Approach to Tibiopedal Retrograde Revascularization of Below-The-Knee Peripheral Arterial Diseases With or Without Transradial Guidance Peripheral Angiography.

We sought to compare the use of transradial peripheral angiography to guide retrograde revascularization of below-the-knee (BTK) lesions using tibiopedal access (TPA). Tibiopedal retrograde revascularization of BTK lesions is an emerging technique in peripheral interventions. We performed an observational cohort study of 194 consecutive adult patients with critical limb ischemia (CLI) who underwent endovascular intervention for BTK diseases using peripheral angiography and primary TPA access with vs without transradial (TR) guidance at 2 centers (New York, USA and Budapest, Hungary). The primary endpoints were procedure success, 30-day major adverse event rate, 30-day access-site complication rate, and 30-day access-site patency rate by ultrasound. Secondary endpoints were periprocedural complications, fluoroscopy time, procedure length, and crossover rate to femoral access. There were 78 patients in the TR-guidance group and 116 patients in the non-TR guidance group. Overall procedure success rates with TR guidance vs without TR guidance were 97% and 98%, respectively. Fluoroscopy times (732.8 ± 615.7 seconds vs 769.8 ± 565.8 seconds; P=NS) and procedure times (46.5 ± 24.4 minutes vs 55.4 ± 12.6 minutes; P=NS) were similar in the TR-guidance group vs the non-TR guidance group, but contrast volumes were higher in the TR-guidance group (100.0 ± 60.1 mL vs 43.8 ± 10.2 mL in the non-TR guidance group; P<.05). There was no difference in 30-day major adverse events, other than higher amputation rate in the TR-guidance group (15.3%), which was attributed to severe baseline complex CLI status in this patient group. There was 1 case of arteriovenous fistula, 1 case of pseudoaneurysm, and 1 case of tibiopedal artery occlusion at 30 days in the group without TR guidance. There were 3 cases (3.8%) of radial artery occlusion in the TR-guidance group. The treatment of CLI with BTK lesions is feasible and safe, with a high procedural success rate and low access-site complication rate using the TPA approach regardless of whether or not TR guidance is utilized.

Safety and efficacy of radial access in trauma in 65 trauma endovascular cases

ObjectiveEndovascular techniques in trauma surgery are becoming increasingly important in patient management, with procedures such as pelvic and splenic angioembolization becoming the standard of care for certain injuries. Traditionally, such interventions are performed via femoral access, although the morbidity of this approach is not insignificant (3%-10%). Transradial access (TRA) is an attractive alternative, pioneered by cardiologists, with low rates of access site complications in patients undergoing coronary intervention. Recently, this technology has extended to other interventions. The aim of this study was to present the initial experience of a radial program in a busy trauma center, with specific regard to safety and complications. MethodsThe medical records of trauma patients undergoing endovascular procedures via TRA between March 2018 and December 2018 were queried for procedural and postoperative data. Demography and injury characteristics were presented for the overall cohort, followed by a comparison of procedural data and complications between laterality. Continuous variables were compared using a two-tailed t-test and categorical variables were compared using a χ2 test. ResultsOver a 9-month period, 65 patients underwent 81 interventions via TRA, most commonly solid organ or pelvic angiography/embolization. Radial artery access was achieved in all patients, with procedural success achieved in all but two patients (n = 63 [96.9%]) who had hypoplastic radial artery anatomy, who underwent ulnar access. The overall technique-related complication rate was 1.5% with no difference observed between laterality (n = 1; P = .523). One patient with an admission Glasgow Coma Score of 3 and coagulopathy developed radial artery thrombosis after pelvic angiography via right TRA. Mortality was seen in seven patients (10.8%) owing to hemorrhagic shock (n = 3 [42.8%]) or multiorgan failure (n = 4 [57.1%]). There were no cases of postprocedural access site bleeding, hematoma, pseudoaneurysm, vascular injury, intraoperative arrhythmia or cerebrovascular accident, arteriovenous fistula formation, or infection. ConclusionsTRA is a feasible and low-risk alternative for endovascular intervention in the trauma patient. It yields good technical success with low morbidity. Although larger studies are needed to establish the full efficacy of TRA at the multi-institutional level, this single-institution study demonstrates the legitimacy of an alternative means for endovascular intervention in the trauma patient.

Predictors of Groin Access Pseudoaneurysm Complication: A 10-Year Institutional Experience.

In clinical practice, the incidence of femoral pseudoaneurysms requiring repair is small, but at a tertiary care center, the repair rate is higher due to referrals. We sought to specifically study patients who suffered postcatheterization pseudoaneurysms requiring thrombin injection or operative repair and compare them to our routine transfemoral endovascular patients to identify predictors of clinically significant pseudoaneurysms. The underlying goal would be to identify what makes these patients that develop pseudoaneurysms different. A search of our billing records for Current Procedural Technology (CPT) codes of these 2 procedures between January 2008 and April 2018 was combined with our institution's Peripheral Vascular Intervention Vascular Quality Initiative database spanning from January 2013 to December 2017. A comparison was then performed between patients who had the outcome of operative intervention for a pseudoaneurysm complication and those who did not, with the goal of elucidating patient demographics and periprocedural factors that would predict pseudoaneurysm formation using univariate and multivariate analyses. There were 77 patients who required thrombin injection or open repair for access-related pseudoaneurysms and 324 patients who did not. Complications occurred more often in patients who were older than 75 (40.2% vs 21.9%; P = .0009), female (57.1% vs 38.6%; P = .003), obese (59.7% vs 33.3%; P < .001), hypertensive (96.1% vs 79.3%; P = .0005), who received a sheath >6F (32.4% vs 13%; P < .0001), intraoperative and postoperative anticoagulation (77.3% vs 32.7% and 52.1% vs 24.2%, respectively; P < .0001), and periprocedural P2Y12 inhibitors (48.7% vs 28%; P = .0005). Less complications were observed in patients who had a closure device used (42.9% vs 8.45%; P < .0001) and protamine reversal (26.5% vs 13.3%; P = .0163). Our findings validate published reports that incriminate a larger sheath size, perioperative anticoagulation, and female gender as increasing the rate of access site complications, with the use of a closure device being protective.

P4703Distal radial artery access using slender technique for superfitial femoral artery intervention

Abstract Purpose The purpose of this pilot study was to evaluate the acute success and complication rate of the distal radial artery access for femoral artery intervention. Methods and results The clinical and angiographic data of 195 consecutive cases with symptomatic superficial femoral stenosis, treated via distal radial (DR) or proximal radial (PR) access using 6F sheathless guiding between 2014 and 2018, were evaluated in a pilot study. Secondary access was achieved through the pedal artery. Primary endpoint: major adverse events (MAE), rate of major and minor access site complications. Secondary endpoints: angiographic outcome, procedural factors, cross-over rate to femoral access site, and duration of hospitalization. Overall technical success was achieved in 186 patients (95.4%) with 25/26 (96.1%) success in DR and 161/169 (95.2%) success in PR group (ns). The cross over rate to femoral access site was 3.8% in DR and 4.7% in PR group (ns), while dual (transradial and transpedal) access was used in 9/26 (34.6%) patients in DR and 39/169 (23%) patients in PR group (p&lt;0.05). Stent implantation was necessary in 8/26 (30.7%) cases in DR and in 42/169 (24.8%) cases in PR group (ns). CTO recanalization was performed in the DR and PR group with 94.1% (16/17) and 92.6% (79/81) technical success rate. The mean contrast consumption, fluoroscopy time and procedure time was in the DR and PR group was: 93.4 [78–108]ml vs 120 [108–131]ml, 662 [501–822]vs 769 [671–866]min, and 33.4 [27–39]vs 36.5 [32–40]min (ns), respectively. The rate of access site complications in the DR and PR group was 0% and 4.7% (0% major, 4.7% minor) (p p&lt;0.001), respectively. The cumulative incidence of MAE at 3 months in the DR and PR group was 3.8% vs 10.6% (p&lt;0.05). Conclusion Femoral artery intervention can be safely and effectively performed using distal transradial access and distal radial access is associated with lower access site complications.

P4705Transpedal access for below-the-knee lesions in critical limb ischemia

Abstract Background Traditional access for the treatment of below-the-knee (BTK) lesions is the femoral approach, but in failed anterograde cases transpedal access can be utilized. The aim of the study was to evaluate the safety and technical and clinical success of endovascular BTK artery revascularization by a primarly retrograde transpedal access. Methods The clinical and angiographic data of 115 consecutive patients treated via transpedal access with symptomatic BTK stenosis were evaluated two cardiovascular centers (Europe and USA). We have selected patients with good distal run-off and non-infected distal puncture zone. The distal pedal artery was punctured by ultrasound guidance, and the procedural guidance was done by transpedal (TPA) or transradial angiography (TRA). Distal pressure at the end of the pedal sheath was also measured before and after the intervention. The primary endpoint was a composite of procedural success, major adverse events, and rate of access site complications. Secondary endpoints were: angiographic result of BTK intervention, fluoroscopy time, X-ray dose, procedure length, cross over rate to another puncture site and duration of hospitalization. Results The indication of the intervention was critical limb ischemia in all patients. Overall technical success was achieved in 99.1% of the patients at least in one BTK artery. The distal puncture was successful in 114/115 patients 99.1% of the patients and the access site was anterior tibial artery in 96 patients (83.55), posterior tibial artery in 15 patients (13%) and peroneal artery in 4 patients (3.5%). Pedal to femoral access site cross over was 0.5%. Control angiography was done in 73 patients (63.5%) from radial and in 42 patients (36.5%) from transpedal access. The average contrast, procedure and fluoroscopy time was 109.9 [97–123]vs 31.4 [27–35]ml (p&lt;0.001), 43.2±22.3 vs 47.8±25.5 min and 581±448.7 vs 788±605 sec in the TR and TP group.The average systolic transpedal pressure has been increased from 100.1 mmHg ±44 to 131±36.4 mmHg after the procedure. Major adverse event at one month was detected in six patients (5.2%).Radial and pedal artery access site complications were encountered by ultrasound in 3/73 (4.1%) and 3/115 patients (2.6%) during follow up. Conclusion Below-the-knee artery angioplasty can be safely and effectively performed using radial and transpedal access in selective patient population.

Left main percutaneous coronary intervention-Radial versus femoral access: A systematic analysis.

Debate still occurs of the benefits of transradial access (TRA) versus transfemoral access (TFA), especially for complex percutaneous coronary interventions. Recent data has shown equivalent efficacy and improved safety outcomes with TRA. To systematically review and perform a meta-analysis comparing procedural characteristics and clinical outcomes of TRA versus TFA in patients who underwent percutaneous coronary intervention (PCI) for left main (LM) disease. We conducted an electronic database search of all published data for studies that compared TRA with TFA in patients undergoing PCI of LM disease. Event rates were compared using the odds ratio (OR) as a measure of effect size. Random-effects models were used to account for interstudy heterogeneity. A total of 12 observational studies including 17,258 patients (TRA n = 7,971; TFA n = 9,287) were included. Compared to TFA, TRA was associated with a significant reduction in access site bleeding (OR = 0.11; 95% confidence interval [CI] = 0.04-0.26; I2 = 0%; p < .0001), major bleeding (OR = 0.44; 95% CI = 0.27-0.69; I2 = 0%; p = .0005) or any bleeding episode (OR = 0.43; 95% CI = 0.27-0.69; I2 = 12%; p = .0004). Rates of access site or vascular complications (OR = 0.26; 95% CI = 0.17-0.40; I2 = 0%; p < .00001) and in-hospital mortality (OR = 0.49; 95% CI = 0.31-0.79: I2 = 11%; p = .004) were also lower in the TRA group. There were no significant differences in procedural outcomes between TRA and TFA except for a significant reduction in the rate of long-term target vessel revascularization (TVR) in the TRA group (OR = 0.62; 95% CI = 0.41-0.94: I2 = 0%: p = .02). We further performed a subgroup analysis for unprotected left main PCI only, which showed a significant reduction in rates of any bleeding episode, lower access site or vascular complications, and in-hospital mortality with TRA as compared to TFA. Patients undergoing PCI for LM disease via TRA have with less bleeding, reduced access site or vascular complications, reduced in-hospital mortality, comparable procedural success, and possibly better long-term clinical efficacy when compared to those undergoing the procedure via TFA.

IF16. Safety and Efficacy of Radial Access for the Management of Endovascular Trauma

Endovascular techniques in trauma surgery are becoming increasingly important in patient management, with procedures such as pelvic and splenic angioembolization becoming the standard of care for certain injuries. Traditionally, such interventions are performed via femoral access, although the morbidity of this approach is not insignificant (3%-10%). Transradial access (TRA) is an attractive alternative, pioneered by cardiologists with low rates of access site complications in patients undergoing coronary intervention. Recently, this technology has extended to other interventions. The aim of this study was to present the initial experience of a radial program in a busy trauma center, with specific regard to safety and complications. The medical records of trauma patients undergoing endovascular procedures via TRA between March 2018 and December 2018 were queried for procedural and postoperative data. Demography and injury characteristics were presented for the overall cohort (Table I), followed by a comparison of procedural data and complications between laterality (Table II). Continuous variables were compared using a two-tailed t-test and categorical variables were compared using a χ2 test. Over a 9-month period, 65 patients received 81 interventions via TRA, most commonly solid organ or pelvic angiography/embolization. Access success was achieved in all but two patients (n = 63, 96.9%) who had hypoplastic radial artery anatomy and who underwent ulnar access. Overall complication rate was 4.6% with no difference observed between laterality (n = 3; P = .512). One patient with an admission a Glasgow Coma Score of 3 and coagulopathy developed radial artery thrombosis after pelvic angiography via a right TRA. Another patient with penetrating injuries to the head and neck developed an acute cerebrovascular attack after internal carotid artery stenting via left TRA. One patient with a pelvic crush injury developed acute kidney injury after undergoing pelvic angioembolization, with full resolution within 2 weeks. Mortality was seen in seven patients (10.8%), owing to hemorrhagic shock or multiorgan failure (n = 3 [42.8%] and n = 4 [57.1%], respectively). There were no cases of postprocedural access site bleeding, hematoma, pseudoaneurysm, vascular injury, intraoperative arrhythmia, arteriovenous fistula formation, or infection. TRA is a feasible and low-risk alternative for endovascular intervention in the trauma patient. It yields good technical success with low morbidity. Although larger studies are needed to establish the full efficacy of TRA at the multi-institutional level, this single-institution study demonstrates the legitimacy of an alternative means for endovascular intervention in the trauma patient.Table IDemographic data, comorbidities, injury patterns, and physiology of the cohortVariableDemographic data Age, years44.5 ± 18.5 Male sex55 (84.6) Height, cm173.5 ± 8.9 BMI25.6 ± 5.7Comorbidities HTN13 (20) DM11 (16.9) PAD4 (6.2) CKD3 (4.6)Injury characteristics Blunt57 (87.7) Penetrating8 (12.3) ISS23 ± 11 Pelvic fracture12 (18.5) Hostile groin11 (16.9)Physiology GCS <88 (12.3) SBP (at puncture)120.9 ± 25.2 Coagulopathy9 (13.8)BMI, body mass index; CKD, chronic kidney disease; DM, diabetes mellitus; HTN, hypertension; ISS, Injury Severity Score; GCS, Glasgow Coma Score; PAD, peripheral arterial disease.Values are number (%) or mean ± standard deviation Open table in a new tab Table IIProcedural data based on lateralityaVariableTotalRightLeftP valueN653332Target artery/organ Splenic artery34 (52.3)19 (29.2)15 (23.1).269 Hepatic artery7 (10.8)5 (7.6)2 (3.1).500 Celiac Artery5 (7.6)1 (1.5)4 (6.1).121 Iliac arteries10 (15.4)5 (7.6)5 (7.6).681 Renal artery1 (1.5)0 (0)1 (1.5).400 Lower extremity8 (12.3)4 (6.1)4 (6.1).601 Subclavian Artery4 (6.1)3 (4.6)1 (1.5).530 Internal carotid artery1 (1.5)0 (0)1 (1.5).455 Aorta5 (7.6)2 (3.1)3 (4.6).552Intervention Solid organ angiography8 (12.3)4 (6.1)4 (6.1).556 Solid organ AE36 (55.4)19 (29.2)17 (26.1).541 Visceral vessel angiography6 (9.2)1 (1.5)5 (7.6).107 Pelvic angiography4 (6.1)1 (1.5)3 (4.6).371 Pelvic AE7 (10.8)4 (6.1)3 (4.6).667 Lower extremity angiography8 (12.3)5 (7.6)3 (4.6).667 Lower extremity AE1 (1.5)1 (1.5)0 (0).750 Upper extremity angiography1 (1.5)1 (1.5)0 (0).750 Cervical vessel angiography3 (4.6)2 (3.1)1 (1.5).700 Carotid stenting1 (1.5)0 (0)1 (1.5).500 Aortography6 (9.2)4 (6.1)2 (3.1).429Outcomes Procedural success63 (96.9)31 (93.9)32 (100.0).254 LOS8.0 (4.0-15.0)6.5 (3.0-15.5)8.5 (4.0-15.5).909 Mortality7 (10.8)4 (6.1)3 (4.6).518 Complications3 (4.6)2 (3.1)1 (1.5).512AE, Angioembolization; LOS, length of stay.aAll proportions are presented as number (percent), with comparisons using a χ2 test. Open table in a new tab

Association of Strategy of Direct Stenting of Infarct-Related Artery with Reduction of Mortality in Woman with ST-Elevation Myocardial Infarction

Among1297 patients with STEMI admitted to the coronary care unit and subjected to PCIs from 2006 to 2015 there were 330 women(25.4 %). Data from 161 women (48.8 %) who underwent DS were compared with those from 169 women who underwent indirectstenting (IS). Among patients of IS group in 148 (87.6 %) stenting was performed after predilation, in 7 (4.1 %) after manual thrombusaspiration, and in 14 (8.3 %) after combination of predilation and thrombus aspiration. The rate of angiographic success washigher in the DS group (97.5 vs. 87.6 %, р&lt;0.001). Rates of deaths (4.3 vs. 11.8 %; p=0.013), major adverse cardiac events (MACE)(4.3 vs. 13 %; p=0.005), and no-reflow (1.9 % vs. 11.2 %; p=0.013) were significantly lower in the DS group. There were no differencesin rates of recurrent myocardial infarction and access site complications. Following propensity score matching, each group contained 78 patients. Rates of MACE (2.6 vs. 14.1 %; p=0.009) and deaths (2.6 vs. 12.8 %; p=0.016) remained significantly lower in the DS group. After multivariate adjustment, DS strategy was independently associated with lower mortality (odds ratio [OR] 0.29; 95 % confidence interval [CI] 0.09-0.97; p=0.04) and MACE (OR=0.28; 95 %CI 0.09-0.087; p=0.03). DS strategy in STEMI female patients turned out to be safe and effective technique.

03:09 PM Abstract No. 64 Switching from transfemoral to transradial approach for uterine artery embolization: is there a learning curve?

Uterine artery embolization (UAE) has been traditionally performed with transfemoral approach (TFA) with very low complication rate and great technical and clinical success. Transradial approach (TRA) has now been shown to be feasible for uterine artery embolization. However, there is a need to show that TRA is non-inferior in terms of technical and clinical success and complication rates as compared to established practice. In this IRB-approved, HIPAA-compliant retrospective study, consecutive patients that underwent UAE to treat fibroid-related symptoms in a single tertiary academic hospital between 05/2014 – 06/2018 were included. In 11/2016 routine access for UAE was changed from TFA to TRA. Patient’s and procedure characteristics, clinical and technical success and complications rates were compared. There were 91 patients (45±5 yrs) in TFA group and 91 patients (46±5 yrs) in TRA with one case of crossover to TFA due to vasospasm. There was no difference in fluoroscopy time (41±16 vs. 40±14min, p=0.56) or radiation exposure (660±711 vs. 679±998mGy, p=0.88) between TFA and TRA groups. More women were discharged home the same day with TRA (30/91, 33%) than with TFA (4/91, 4%), p=0.002. Only 2 patients (2/30, 7%) represented to ED for pain control among patients who were discharged home the same day in TRA group vs. 1/4, 25% in TFA group. There was a similar low rate of minor access site complication in each group: in TFA group (6/91, 7%): 5 patients with groin hematomas and 2 patients with groin pain vs. in TRA group (4/91, 4%): 3 patients with transient focal occlusion of the radial artery and one patient with focal pain, all resolved with conservative management. Imaging at 3 months showed similar rate of uterine volume reduction: 38±17% in TFA vs. 33±19% in TRA group, p=0.18. No residual enhancement was noted in 43/52, 83% in TFA vs. 65/76, 85% in TRA group in patients with MRI at 3 months, p=0.66. In this retrospective study transradial approach was shown to have similar technical and clinical success rate with similar very low rate of access site complications as compared to transfemoral approach. TRA allowed same day discharge in 33% of patients.

Abstract WP49: Emboli in New Territory After Mechanical Thrombectomy: Systematic Review and Meta-Analysis

Introduction: As mechanical thrombectomy (MT) for acute ischemic stroke has become standard therapy, interest has grown in treatment of milder strokes. Minor complications might therefore be important in mild strokes. The primary objective of the systematic review was to report the rate of emboli in new territory (ENT) following MT. Secondary objectives included describing rates other non-CNS hemorrhage procedural complications of arterial perforation, dissection, vasospasm and access site complications. Methods: We searched randomized controlled trials (RCTs) published in MEDLINE/PubMed from 2010 to 2018 supplemented by a hand-search of reference lists and review articles. Random-effects models using the inverse variance method were used to estimate the pooled complication rates. We also performed subgroup analyses by technique (stent retriever first group or other devices) and year of publication (2010-2015 or 2016-2018). Results: A total 19 RCTs with 2454 procedures for MT were included in our analysis. ENT, perforation, dissection, vasospasm, and access site complications were reported in 9 (47%), 11 (58%), 7 (37%), 7 (37%), 8 (42%) studies, respectively. The pooled ENT rate was 3.5% (95% CI 2.0-5.4), and there was no significant difference in the rate of ENT between stent retriever first group (2.8%, 95% CI 0.4-6.7) and other devices group (4.4%, 95% CI 2.6-6.7, p=0.43). There was no differences in ENT rates by year of publication. Other complication rates were perforation 2.2% (95% CI 0.9-4.0), dissection 2.0% (95% CI 1.1-3.3), vasospasm 10.7% (95% CI 3.8-20.2), and access site complication 2.9% (95% CI 0.9-5.9). There were no differences in the subgroups of perforation, dissection, and vasospasm by procedural methods or year of publication, but the rates of access site complications from 2016-2018 was significant lower compared to 2010-2015 (0.6% vs 5.2%, p&lt;0.001). Conclusions: The risks of 3.5% rate of ENT and low rates of other complications might become relevant in treatment of mild stroke.