Multiple systemic thromboembolism secondary to acute myocardial infarction in a young patient with coronavirus disease 2019 pneumonia: A case report.

Unlabelled: Coronavirus disease 2019 (COVID-19) is associated with an increased risk of thromboembolic events. However, there are few reports on multiple thromboembolic events in young patients with COVID-19. Herein, we report a case of multiple visceral arterial embolisms secondary to acute myocardial infarction in a young patient with COVID-19.

Efficacy and safety of sheathless guiding catheter for distal radial approach.

Objectives: This study aimed to assess the efficacy and safety of a sheathless guiding system in patients who underwent percutaneous coronary intervention (PCI) with distal radial access (DRA).

Background: Hyperion™ Sheathless® guiding catheter (Asahi Intecc, Japan), one of the latest 6-Fr guiding systems for transradial PCI characterized by novel outer dilator, is considered to facilitate smooth insertion of the catheter to the artery and may contribute to further reduction of access site complications in DRA.

Methods: Between October 2018 and January 2023, 286 patients underwent PCI with a Hyperion™ Sheathless® guiding catheter with DRA at two Japanese hospitals.

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

Objectives: 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.

Methods: 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.

Impact of the SARS-CoV-2 Pandemic on Primary Percutaneous Coronary Intervention for Patients with ST-Elevation Myocardial Infarction.

During the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, patients with ST-elevation myocardial infarction (STEMI) should be treated as possibly infected individuals. Therefore, more time is considered necessary to conduct primary percutaneous coronary intervention (PCI). In this study, we sought to evaluate the impact of the SARS-CoV-2 pandemic on primary PCI for STEMI.

Feasibility and safety of the successive use of distal transradial access for coronary angiography and intervention in the same arm.

Distal transradial access (dTRA) is a novel alternative to conventional radial artery access for coronary catheterization. However, the feasibility and safety of repeated use of dTRA have not been fully elucidated. This study aimed to evaluate the feasibility and safety of the repeated use of dTRA for coronary angiography and intervention in the same arm.

Evaluation of the Determinant Factors and Clinical Implications of Self-Care Agency Among Patients with Acute Myocardial Infarction.

In patients with acute myocardial infarction treated with percutaneous coronary intervention (PCI), effective post-hospital care, partially determined by self-care agency, is critical for long-term prognosis. However, the relationship between agency and sociodemographic characteristics requires elucidation. One hundred and six outpatients participated in our study.

Impact of living alone on the care and outcomes of patients with ST-elevation myocardial infarction.

Background: This study aimed to investigate the association between living alone at home and the care and outcomes of patients with ST-segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (pPCI).

Methods: In total, 557 patients with STEMI underwent pPCI between January 2008 and September 2017. Among them, we included 208 patients who were transferred directly by emergency medical services from their home to the hospital.

Pseudoaneurysm Formation After Cardiac Catheterization Using the Distal Transradial Approach.

This is the first case report of pseudoaneurysm formation after cardiac catheterization through the distal radial artery, which was easily treated by external compression.

Efficacy and safety of the distal transradial approach in coronary angiography and percutaneous coronary intervention: a Japanese multicenter experience.

The novel distal transradial approach (dTRA) is expected to further build upon the advantages of transradial access. However, the incidence of radial artery occlusion (RAO) and hemorrhagic events with the dTRA has not been fully elucidated. The objective of this study was to investigate the effects of using the dTRA on RAO and postprocedural hemorrhage.

The impact of tissue characterization for in-stent restenosis with optical coherence tomography during excimer laser coronary angioplasty.

We aimed to evaluate the impact of tissue characterization for in-stent restenosis (ISR) with optical computed tomography (OCT) during excimer laser coronary angioplasty (ELCA) in the drug-eluting stent (DES) era. The effect of ELCA for ISR according to differences in tissue characteristics is unclear. Fifty-three ISR lesions (7 bare metal stents and 46 drug-eluting stents) were treated with an ELCA catheter.

Impact of shorter door-to-balloon time on prognosis of patients with STEMI-single-center analysis with a large proportion of the patients treated within 30 min.

Several recent studies suggested that the door-to-balloon time (DTBT) for patients with ST-segment elevation myocardial infarction (STEMI) should be as short as possible, despite the existing guideline for STEMI. This study aimed to evaluate the clinical outcomes of the STEMI patient cohort having the highest proportion of patients treated with a DTBT of ≤ 30 min ever reported. We evaluated 527 consecutive patients with STEMI who underwent percutaneous coronary intervention between 2007 and 2015.

Usefulness of the twin guidewire method during retrieval of the broken tip of a microcatheter entrapped in a heavily calcified coronary artery.

During percutaneous coronary intervention performed for a stenotic lesion with heavy calcification in the left coronary artery, the microcatheter tip became transected in the vessel. The fragment was successfully retrieved using the twin guidewire method after negotiating to cross a chronic total occlusion-dedicated guidewire outside the retained tip.

Examination of the appropriate timing of reperfusion therapy for recent myocardial infarction: a Japanese single-center retrospective study.

Background: The various guidelines clearly mention the treatment strategies for in patient of acute myocardial infarction (MI) presenting more than 24h from symptom onset (recent myocardial infarction, RMI). However, the appropriate timing of reperfusion for RMI is unclear.

Methods: We retrospectively evaluated 525 consecutive MI patients who underwent percutaneous coronary intervention (PCI) in our hospital between January 2008 and December 2012.

Spontaneous rotation of the monorail-type guide extension support catheter during advancement of a curved guiding catheter: the potential hazard of twisting with the coronary guidewire.

The extension support guiding catheter has been used to perform complex percutaneous coronary intervention to increase back-up support for the guiding catheter or to ensure deep intubation for device delivery. However, because of its monorail design, advancement of the stent into the distal extension tubing segment is sometimes problematic. Although this problem is considered due to simple collision of the stent, operators have observed tangling between a monorail extension catheter and coronary guidewire in some patients.

Successful treatment of a nonagenarian patient with acute coronary syndrome complicated with chronic total occlusion of the left main coronary artery.

Although chronic total occlusion of the left main coronary artery (LMCA) is considered very rare, this condition could be fatal if it becomes complicated with an acute coronary syndrome lesion in the right coronary artery (RCA) which is usually the only remaining coronary artery for the myocardium. We reported a successfully treated case of a nonagenarian patient with ST-segment elevation myocardial infarction, who had subtotal occlusion of the RCA and total occlusion of the LMCA with Rentrop grade 2 collateral coronary artery supply from the RCA.

Onset-to-device time of patients who arrive at off-hours: Importance of prehospital management and public awareness for patients with ST-segment elevation myocardial infarction.

Aim: The influence of the time of arrival at the hospital on the door-to-device (DTD) time has been investigated; however, the influence on the onset-to-device (OTD) time is unclear in ST-segment elevation myocardial infarction (STEMI) patients. The aim of this study was to investigate the relationship between the time of arrival at the hospital and the OTD time in STEMI patients.

Methods: We evaluated 377 STEMI patients who underwent primary percutaneous coronary intervention (pPCI) between January 2008 and December 2014.

Severe catheter kinking and entrapment during transbrachial angiography: percutaneous retrieval with a slender approach.

A 74-year-old man previously treated with bilateral femoro-popliteal bypass was referred to our hospital for the treatment of a severely tangled 4-Fr diagnostic catheter in the right brachial artery. We inserted a 5-Fr sheath introducer from the proximal right femoral artery and advanced a 5-Fr JR catheter to the right brachial artery. A Sion coronary guidewire was then advanced for the tip of the tangled catheter, and a 4-mm gooseneck snare catheter was inserted through the guidewire.

Percutaneous coronary intervention for nonagenarian patients with ST-segment elevation myocardial infarction: Experience of a single Japanese center.

Background: Old age is a prognostic risk factor for patients with ST elevation acute myocardial infarction (STEMI); however, few data exist describing STEMI patients aged over 90 years.

Methods: We retrospectively evaluated the clinical indices and outcomes of 282 consecutive STEMI patients who underwent primary percutaneous coronary intervention (PCI) in our hospital between January 2008 and December 2012. Patients with acute myocardial infarction complicated by out-of-hospital cardiopulmonary arrest, patients with a left main trunk culprit lesion, and patients diagnosed more than 24h after symptom onset were excluded.

Impact of the Presence of Chronic Total Occlusion in a Non-Infarct-Related Coronary Artery in Acute Myocardial Infarction Patients.

Chronic total occlusion (CTO) in a non-infarcted-related artery was reported to worsen immediate clinical outcome in acute myocardial infarction (AMI) patients. However, the prognosis of such patients with preserved left ventricular function after successful primary percutaneous coronary intervention (PCI) has not yet been clarified. The aim of the present study was to evaluate whether the presence of CTO contributes to a worse prognosis even in patients with preserved left ventricular function after primary PCI.

Minimally invasive atherectomy with a virtual 3-Fr sheathless guiding catheter and a 0.9-mm excimer laser catheter for the treatment of coronary in-stent restenosis: a case report.

A 50-year-old man underwent percutaneous coronary intervention for stent restenosis in his left anterior descending artery. After insertion of a 5-Fr sheathless guiding catheter through the right radial artery, optical coherence tomography (OCT) revealed a circumferential dense fibrotic plaque in the distal part of the stent. Therefore, we performed excimer laser coronary atherectomy using a 0.

Virtual 5-French intra-aortic pumping using a Glidesheath Slender and 6-French intra-aortic balloon catheter.

Objectives: The aim of this study was to evaluate the feasibility and safety of the 6-Fr Glidesheath Slender, which has equivalent outer size to the conventional 5-Fr sheath, for use with the 6-Fr intra-aortic balloon pump (IABP) catheter.

Methods: Between May 2014 and March 2015, 24 patients with acute coronary syndrome underwent percutaneous coronary intervention using a 6-Fr IABP catheter through a 6-Fr Glidesheath Slender for support. The adverse events, including access site complications, kinking of the sheath during the procedure, and any evidence of balloon pump failure, were retrospectively investigated.

The novel 4.5F CoKatte catheter for stent delivery facilitation in complex coronary artery lesions.

Background: The mother and child technique with a deep-seated 4F Kiwami catheter has been reported to be effective for delivering stents to complex lesions.

Objectives: To assess the feasibility and efficacy of a novel 4.5F child catheter for deep insertion and stent deployment into the distal coronary artery for the treatment of complex lesions.