Identifying non-responders to cardiac resynchronization therapy in the non-left bundle branch block.

Background: Non-response to cardiac resynchronization therapy (CRT) is an important issue in the treatment of heart failure with reduced ejection fraction (HFrEF) and non-left bundle branch block (LBBB). Electrocardiogram-gated myocardial perfusion single-photon emission computed tomography imaging (G-MPI SPECT) is typically used to assess left ventricular (LV) dyssynchrony. This study aimed to determine whether G-MPI parameters are associated with non-responsiveness to CRT.

Population pharmacokinetic and exposure-response analysis to support a dosing regimen of CPX-351 (NS-87) in Japanese adult and pediatric patients with untreated high-risk acute myeloid leukemia.

CPX-351 (NS-87; Vyxeos®) has a characteristic liposomal formulation and contains cytarabine and daunorubicin at a 5:1 molar ratio, which demonstrates synergistic activity in both in vitro and in vivo animal models. It has been approved in several countries for the treatment of newly diagnosed, therapy-related acute myeloid leukemia (t-AML) or AML with myelodysplasia-related changes (AML-MRC). Since there are very few Asian patients, especially Japanese adult and pediatric patients, only a small clinical study has been conducted in Japanese adult patients and no study in Japanese pediatric patients.

Imaging of cardiac amyloidosis using dynamic F-FPYBF-2 positron emission tomography.

Purpose: This study aimed to evaluate the diagnostic ability of 5-(5-(2-(2-(2-F-fluoroethoxy) ethoxy) ethoxy) benzofuran-2-yl)-N-methylpyridin-2-amine (F-FPYBF-2) dynamic PET for patients with cardiac amyloidosis (CA).

Methods: The subjects were patients diagnosed with proven amyloidosis (n = 16) including transthyretin cardiac amyloidosis (ATTR-CA) (n = 7) and light chain amyloidosis (AL amyloidosis) (n = 9), of which 4 and 5 with (AL-CA) and without (AL-nCA) cardiac involvement, and 4 control subjects suffering from some symptoms of cardiac failure without amyloidosis (CTL). Thirty minutes dynamic F-FPYBF-2 PET/CT was performed to evaluate the time activity curve and the retention index (mRI) as the ratio of the myocardial SUV at 15 to 5 min.

Dissociated rhythms between donor and recipient hearts after heart transplantation using the modified bicaval technique.

Unlabelled: The modified bicaval anastomosis technique is an orthotopic heart transplantation technique that preserves the posterior wall of the right atrium as a bridging tissue, creating a dual structure of the recipient and donor hearts between the superior and inferior venae cavae. In this report, we present a case with unique electrophysiological findings following heart transplantation using this technique. The patient, who had persistent atrial fibrillation before the procedure, achieved a maintained sinus rhythm afterward.