Using abdominal skin flaps in experimental rats, we created flaps that exhibited relatively constant necrosis in the distal side. The existence of arterial inflow had a marked effect on the survival of the distal part of these flaps. We postulate that the so-called delay mechanism produces the arterial inflow as a consequence, although how this occurs is still unsolved. We suggest the possibility that a large flap may be transposed in one stage with vascular anastomosis in the distal part--preferably artery and vein, or artery only.
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JACC Asia
December 2024
National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore.
Background: Right ventricular restrictive physiology (RVRP) is a common occurrence in repaired tetralogy of Fallot (rTOF). The relationship of RVRP with biventricular blood flow components and kinetic energy (KE) from 4-dimensional (4D) flow cardiovascular magnetic resonance (CMR) is unclear.
Objectives: The purpose of this study was to investigate the association of 4D flow CMR parameters with RVRP in rTOF patients.
Radiol Case Rep
March 2025
University of Maryland School of Medicine, Department of Diagnostic Radiology and Nuclear Medicine, Division of Vascular and Interventional Radiology, Baltimore, MD, USA.
Splenic steal syndrome (SSS) post liver transplant is a potential cause of graft dysfunction in the setting of peripheral hepatic arterial bed resistance and redirection of blood flow to a dominant splenic artery resulting in reduction of hepatic arterial inflow. We report utilization of balloon occlusion of the proximal splenic artery as an objective measure to confirm the diagnosis of SSS in a patient with orthotopic liver transplant followed by successful treatment with proximal splenic artery embolization using Gelfoam and Amplatzer vascular plug. Written informed consent for the publication of this case report was obtained from the patient.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
June 2024
Department of Thoracic Surgery, Graduate School of Medicine, Nagoya University, Aichi, Japan.
Systemic artery-to-pulmonary artery fistula (SAPAF) is an uncommon abnormal vascular connection between systemic and pulmonary arteries. SAPAF with 3 or more inflow vessels has rarely been reported. The definitive diagnosis is made by selective arterial angiography, but 3-dimensional computed tomography angiography is useful for delineating abnormal vessels.
View Article and Find Full Text PDFCell
January 2025
Center for Translational Neuromedicine, University of Copenhagen, 2200 Copenhagen N, Denmark; Center for Translational Neuromedicine, University of Rochester, Rochester, NY 14627, USA. Electronic address:
As the brain transitions from wakefulness to sleep, processing of external information diminishes while restorative processes, such as glymphatic removal of waste products, are activated. Yet, it is not known what drives brain clearance during sleep. We here employed an array of technologies and identified tightly synchronized oscillations in norepinephrine, cerebral blood volume, and cerebrospinal fluid (CSF) as the strongest predictors of glymphatic clearance during NREM sleep.
View Article and Find Full Text PDFCVIR Endovasc
January 2025
Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
Background: Hepatic artery infusion pump (HAIP) chemotherapy is a locoregional treatment for intrahepatic malignancies. HAIPs are surgically implanted, and the catheter tip is typically inserted into a ligated gastroduodenal artery stump. Potential complications at the catheter insertion site include dehiscence, pseudoaneurysm or extravasation, and adjacent hepatic arterial stenosis and thrombosis.
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