Successful endovascular therapy with "Direct tip injection in occlusive lesions (DIOL)" fashion for persistent sciatic artery aneurysmal occlusion: A case report.

Unlabelled: Persistent sciatic artery (PSA) is a rare congenital anomaly that may involve aneurysmal formations. During endovascular treatment for PSA aneurysm (PSAA) occlusion, guidewire crossing can be challenging due to complex anatomy. We report successful endovascular intervention for PSAA occlusion using the "direct tip injection in occlusive lesions (DIOL)" fashion, in which hydraulic pressure with contrast facilitates guidewire crossing by visualizing the vessel course and expanding the microchannel and vessel lumen.

Rendezvous-PIERCE technique: establishing a channel through severe calcification in infrainguinal arterial lesions using needle rendezvous.

Background: Severe calcification often prevents device passage and balloon expansion in cases of lower extremity artery disease. To address this limitation, we introduced a novel calcium modification technique called Rendezvous-PIERCE (R-PIERCE).

Methods: A needle was inserted in a retrograde manner and advanced to touch the tip of an antegrade guidewire within the lesion.

Repeat drug-coated balloon angioplasty for femoropopliteal lesions: 12-month results from a retrospective observational study.

Background: The clinical implications of restenosis after drug-coated balloon (DCB) treatment remain unclear. We compared the clinical outcomes between DCB angioplasty for restenosis and de novo femoropopliteal artery lesions. This single-center retrospective study included 571 patients (737 limbs) who underwent either repeat (54 patients, 64 limbs) or de novo DCB (517 patients, 673 limbs) without bailout stenting.

Successful transvenous retrieval of an electrode ring dislodged from a novel visualized steerable sheath by inflation of a balloon inside the ring.

Unlabelled: The VIZIGO sheath (Biosense Webster, Irvine, CA, USA) is used for catheter ablation (CA) of atrial arrhythmia. In this case report, we describe a complication associated with the VIZIGO sheath and present a successful bailout method. An 82-year-old woman with paroxysmal atrial fibrillation (AF) and atrial tachycardia (AT) was referred to our hospital after experiencing palpitations for 6 months.

Outcomes of non-flow-limiting spiral dissection after drug-coated balloon angioplasty for de novo femoropopliteal lesions.

Background: Whether drug-coated balloon (DCB) angioplasty would be effective in spiral dissection (SD) lesions with no flow impairment has been thoroughly investigated.

Aims: The present study sought to assess the clinical outcomes of non-flow-limiting SD after DCB angioplasty for de novo femoropopliteal lesions in patients with symptomatic lower extremity artery disease.

Method: This single-center retrospective study enrolled 497 patients with non-flow-limiting SD (n = 92) or non-SD (n = 405) without bailout stenting.

Lock and dock: Two-step transvenous retrieval of a fractured femoral sheath with a vascular snare via the right internal jugular vein.

Unlabelled: An 86-year-old male with progressive palpitations and dyspnea was referred to our hospital for heart failure treatment. Catheter ablation was performed for atrial flutter as we suspected tachycardia-induced cardiomyopathy as the cause of the patient's heart failure. Due to difficulty securing a peripheral venous route, a 6-Fr sheath was inserted via the right common femoral vein prior to administering general anesthesia.

Wire ThRoUgh Snare Twice (Wire TRUST) technique: A novel method to grasp a lead with inaccessible ends as a supportive femoral approach for transvenous lead extraction.

Introduction: Transvenous lead extraction (TLE) is a crucial procedure for managing cardiac implantable electronic devices. The use of a combined superior and femoral approach has been found to enhance the success rate of TLE. This report introduces a novel technique, named "Wire ThRoUgh Snare Twice" (Wire TRUST), for effectively grasping a lead without a free end during TLE.

The ViaHole technique: a novel approach for recanalizing major side branch occluded by Viabahn stent-graft.

Introduction: In managing arterial rupture, stent-graft implantation may cause limb ischemia by crossing a major branch for hemostasis. The ViaHole technique could circumvent a major branch occlusion.

Materials And Methods: The process involved advancing retrograde devices into an occluded major branch by the stent-graft implantation to reach the outer surface of the stent-graft, puncturing the stent-graft with a 20-gauge needle to touch the retrograde device, manipulating the guidewire through the needle hole and externalizing it, advancing the microcatheter into the proximal lumen, catching the microcatheter using an antegrade 4-Fr catheter, inserting an antegrade guidewire into the retrograde microcatheter to cross the stent-graft hole, dilating the lesion and stent-graft hole using a 3.

Fracking compared to conventional balloon angioplasty alone for calcified common femoral artery lesions using intravascular ultrasound analysis: 12-month results.

Background: Fracking is a novel technique to crack calcified lesions by hydraulic pressure. This study aimed to compare the performance of fracking and conventional balloon angioplasty without stenting for calcified common femoral artery (CFA) lesions using intravascular ultrasound (IVUS) analysis.

Methods: This retrospective, single-center, comparative observational study included 59 patients (67 limbs) with calcified CFA lesions treated with either fracking (n = 30) or balloon angioplasty (n = 29) between January 2018 and December 2020.

Propensity score-matched analysis of six-month outcomes of paclitaxel-coated balloons combined with UltraScore balloons versus conventional scoring balloons for femoropopliteal lesions.

Purpose: Combination angioplasty with paclitaxel-coated balloons (PCBs) and conventional scoring balloons for femoropopliteal lesions has demonstrated satisfactory results, even for complex lesions. The UltraScore balloon (Becton Dickinson, New Jersey, USA), which has a maximum length of 300 mm, has two longitudinal 0.010-inch stainless steel wires and is a new treatment option for complex femoropopliteal lesions.

Comparative 2-year outcomes of the Misago stent versus other self-expandable nitinol stents for the endovascular treatment of aortoiliac disease.

Background: The Misago iliac stent has not been compared with other stents. This study aimed to evaluate the 2-year clinical outcomes between the Misago stent and other self-expandable nitinol stents for symptomatic chronic aortoiliac disease.

Methods: This retrospective, single-center observational study enrolled 138 patients (180 limbs; Rutherford classification, between categories 2 and 6) treated with a Misago stent (N.

Subintimal Tracking and Re-entry Technique for Stent-Jailed Side-Branch Occlusion.

Objectives: This study aimed to evaluate the clinical effectiveness and outcomes of treatment with the subintimal tracking and re-entry technique for stent-jailed side branch (SB-STAR). SB occlusion is a serious complication of percutaneous coronary intervention (PCI). However, conventional strategies may fail to recanalize the stent-jailed SB.

The "Direct tip injection in occlusive lesions (DIOL)" fashion.

Background: The successful intervention for peripheral artery disease is limited by complex chronic total occlusions (CTOs). During CTO wiring, without the use of intravascular or extravascular ultrasound, the guidewire position is unclear, except for calcified lesions showing the vessel path. To solve this problem, we propose a novel guidewire crossing with plaque modification method for complex occlusive lesions, named the "Direct tip Injection in Occlusive Lesions (DIOL)" fashion.

The "needle re-entry" technique for infrainguinal arterial calcified occlusive lesions.

Background: Vascular calcification is a predictor of poor clinical outcome during and after endovascular intervention. Guidewire crossing techniques and devices have been developed, but chronic total occlusions (CTOs) with severe calcification often prevent subintimal re-entry. We propose a novel guidewire crossing approach combined needle rendezvous with balloon snare technique, named the "needle re-entry" technique, for treatment of complex occlusive lesions.

Coil Embolization for Coronary Artery Perforation: A Retrospective Analysis of 110 Patients.

Objective: Coil embolization (CE) for coronary artery perforation (CAP) has not been thoroughly evaluated. This study aimed to evaluate the extent of myocardial damage and impact on cardiac function after CE for CAP.

Methods: A total of 110 consecutive patients treated with CE for CAP were retrospectively identified.

The "Fracking" technique: a novel approach to crack deep calcified plaque in the common femoral artery with hydraulic pressure.

Background: The patency achieved by conventional peripheral interventions for atherosclerotic lesions in the common femoral artery (CFA), called the "no stenting zone", is not superior to that achieved by surgical endarterectomy due to calcified plaque occupying the area. Plaque modification strategies to obtain acute gain in CFA patency provide the better clinical outcomes than standard balloon angioplasty. Atherectomy devices, which focus on the modification of superficial calcifications, contribute to the improvement of clinical outcomes.

The "Needle bypass" technique: Percutaneous anatomical bypass with needle rendezvous for patients with peripheral arterial disease that have no other surgical options.

Background: The ideal method for recanalization of complex peripheral lesions has not been determined, despite the use of the latest endovascular devices. We describe a novel method for a fully percutaneous anatomical bypass, named the "needle bypass" technique, for treatment of complex vascular lesions with failed previous surgical therapy.

Main Text: A 68-year-old male patient with chronic limb-threatening ischemia presented to our department.