Background: Superficial temporal vessels have been used successfully as recipient vessels for head and neck reconstruction. This study evaluates the impact of several treatment variables on flap failure and take-back rate when using these recipient vessels.
Methods: We conducted a retrospective study of all microsurgical reconstructions using superficial temporal vessels as recipient vessels in a period of 10 years. Variables collected included previous treatments (radiotherapy, chemotherapy, neck dissection, free flap reconstruction), type of flaps used (soft tissue, osteocutaneous), and vessel size discrepancy between donor and recipient vessels.
Results: A total of 132 patients were included in the study. The flap success rate was 98.5%. The take-back rate was 10.6%. The most frequent reason for take-back was venous congestion secondary to thrombosis. None of the studied variables was associated with flap failure. Reconstructions using osteocutaneous flaps and vein diameter discrepancy (ratio ≥ 2:1) had significantly higher take-back rates.
Conclusion: Flaps with a significant size discrepancy between donor and recipient veins (ratio ≥ 2:1) and fibula flaps (compared with soft tissue flaps) were associated with a higher risk of take-back. It is crucial to minimize venous engorgement during flap harvest and anastomosis, and limit vein redundancy during flap in-setting.
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http://dx.doi.org/10.1055/s-0042-1743165 | DOI Listing |
Neural Netw
December 2024
School of Economics and Management, University of Chinese Academy of Sciences, Beijing, 100190, China; Research Center on Fictitious Economy and Data Science, Chinese Academy of Sciences, Beijing, 100190, China; Key Laboratory of Big Data Mining and Knowledge Management, Chinese Academy of Sciences, Beijing, 100190, China. Electronic address:
Optimal transport (OT) is an effective tool for measuring discrepancies in probability distributions and histograms of features. To reduce its high computational complexity, entropy-regularized OT is proposed, which is computed through Sinkhorn algorithm and can be readily integrated into neural networks. However, each time the parameters of networks are updated, both the value and derivative of OT need to be calculated.
View Article and Find Full Text PDFEgypt Heart J
December 2024
Department of Cardiology, ESIC Medical College and Super Speciality Hospital, Room no 107, 1 st floor, Sanath Nagar, Hyderabad, 500038, India.
Background: Patent ductus arteriosus (PDA) is a congenital heart defect that requires closure to prevent complications like heart failure and pulmonary hypertension. Catheter-based closure using devices such as the Amplatzer duct occluder is the preferred method due to its minimally invasive nature. However, device embolization is a rare but recognized complication, particularly in small children or high-flow PDAs.
View Article and Find Full Text PDFMed Phys
December 2024
Research Center for Advanced Detection Materials and Medical Imaging Devices, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China.
Background: The complementary absorption contrast CT (ACT) and differential phase contrast CT (DPCT) can be generated simultaneously from an x-ray computed tomography (CT) imaging system incorporated with grating interferometer. However, it has been reported that ACT images exhibit better spatial resolution than DPCT images. By far, the primary cause of such discrepancy remains unclear.
View Article and Find Full Text PDFRecent Pat Biotechnol
December 2024
Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
Introduction: In this study, a comprehensive search was conducted across multiple databases, including PubMed, Google Scholar, SID, Scopus, Medline, and Web of Science, as well as selected herbal medicine journals. The inclusion of herbal medicine journals was justified by the growing interest in green-synthesized nanoparticles derived from plant extracts, which are relevant to the focus of this review. Articles published between 2015 and 2023 were evaluated.
View Article and Find Full Text PDFQuant Imaging Med Surg
December 2024
Department of Hepatobiliary Surgery, Daping Hospital, Army Medical University, Chongqing, China.
Background: Large-for-size syndrome (LFSS) is an uncommon but potentially lethal complication following adult liver transplantation (LT). Reduced-size liver transplantation (RSLT) is considered a valuable alternative to delayed fascial closure or mesh closure for preventing LFSS. In this article, we report a successful adult-to-adult RSLT case with right posterior graft sectionectomy using three-dimensional (3D) computer-assisted planning.
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