Clinical impact of noncontrast percutaneous coronary intervention in patients with acute coronary syndrome.

Purpose: Contrast-induced acute kidney injury (CI-AKI) is one of the common serious complications of percutaneous coronary intervention (PCI) in patients with acute coronary syndrome (ACS). This study aimed to assess the significance of noncontrast strategy in the setting of ACS.

Methods: CI-AKI was defined as an increase in serum creatinine of ?0.

Emergent transcatheter arterial embolization to control critical blood pressure fluctuation associated with hypercatecholaminemic crisis in a patient with an unruptured retroperitoneal paraganglioma.

Pheochromocytoma/paraganglioma (PPGL)-related hypercatecholaminemic crisis is a rare lethal condition caused by uncontrolled catecholamine secretion, occasionally leading to critical fluctuation in blood pressure (BP). Emergent transcatheter arterial embolization (TAE) has been employed for spontaneous PPGL rupture, but never, to our knowledge, for critical fluctuation in BP associated with PPGL-related hypercatecholaminemic crisis. We describe here our experience utilizing this method to control critical fluctuation in BP associated with this crisis in a 44-year-old man with an unruptured retroperitoneal paraganglioma.

Evaluation of Right Ventricular Function on Cardiac Magnetic Resonance Imaging and Correlation With Hemodynamics in Patients With Chronic Thromboembolic Pulmonary Hypertension.

Balloon pulmonary angioplasty (BPA) is an alternative therapy for chronic thromboembolic pulmonary hypertension (CTEPH). Right heart catheterization (RHC) is essential to evaluate the efficacy of BPA. Cardiac magnetic resonance imaging (CMR) is also now used to assess the structure and function of the right heart non-invasively.

Feasibility and safety of noncontrast percutaneous coronary intervention in patients with complicated acute coronary syndrome.

Objectives: This study aimed to examine the feasibility and safety of noncontrast percutaneous coronary intervention (PCI) in patients with acute coronary syndrome (ACS).

Background: Contrast-induced acute kidney injury (CI-AKI) occurs in 10-20% of ACS patients undergoing PCI, resulting in poor short- and long-term prognoses. Reducing the amount of contrast medium can prevent CI-AKI.

Successful contemporary reverse controlled antegrade and retrograde subintimal tracking without contrast medium: a case report.

Background: Contrast-induced acute kidney injury is one of the common adverse events related to percutaneous coronary intervention and a predictor for worse outcome. In the setting of percutaneous coronary intervention for chronic total occlusion, large amounts of contrast medium, more than 200-400 mL, are generally injected. A higher dose of contrast medium causes contrast-induced acute kidney injury more frequently.