We present two cases of partial graft removal and cryopreserved arterial homograft insertion for treatment of patent axillobifemoral (AXB) polytetrafluoroethylene (PTFE) prosthesis with infection confined only to a part of the graft. In the first patient, infection was confined to the left inguinal site; in the second, there was a cutaneous fistula in the middle prosthetic thoracic tract. Neither patient presented signs of systemic sepsis and radio immunological tests were positive only in a confined tract. After surgery, both patients showed early recovery and currently (mean follow-up 21-month) they are disease-free. Selective partial graft removal appears to give satisfactory results and may reduce the risk of complications compared with total graft removal Moreover, arterial homograft shows greater resistance to infection compared to alloplastic materials, when autologous veins are not available and/or not suitable.
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Cornea
January 2025
Tissue Engineering & Cell Therapy Group, Singapore Eye Research Institute, Singapore.
Purpose: Conjunctival autografts (CAGs) are the gold standard treatment after pterygium resection, but it is challenging to achieve consistently thin Tenon-free CAGs with manual dissection. We herein report the reproducibility and clinical outcomes of a novel algorithm to produce customizable trapezoidal CAGs using femtosecond laser (femtosecond lasers)-assisted pterygium surgery.
Methods: We first tested this algorithm in 4 pig eyes to show reproducibility.
J Dent Sci
January 2025
Department of Oral Surgery, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Viet Nam.
Background/purpose: Autologous dentin materials are among the most promising bone substitutes for preventing osseous defects on the distal side of the lower second molar. This study aimed to investigate the effects of autologous demineralized dentin matrix on postoperative complications and wound healing after lower third molar surgery.
Materials And Methods: Thirteen patients with bilateral symmetrical lower third molars participated in this split-mouth randomized clinical trial.
Am J Ophthalmol Case Rep
March 2025
University of Florida, Department of Ophthalmology, USA.
Purpose: Human amniotic membrane (hAM) grafts have been used to close persistent macular holes in recent years. The results from these surgeries are promising with improved closure rate and vision. However, there is lack of data for what happens to these membranes and how long the tissue should remain inside the patient's eyes.
View Article and Find Full Text PDFRSC Adv
January 2025
Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
Polyurethanes (PU) make up a large portion of commodity plastics appearing in applications including insulation, footwear, and memory foam mattresses. Unfortunately, as thermoset polymers, polyurethanes lack a clear path for recycling and repurposing, creating a sustainability issue. Herein, using dynamic depolymerization, we demonstrate a simple one-pot synthesis for preparation of an upcycled polyurethane grafted graphene material (PU-GO).
View Article and Find Full Text PDFJ Cutan Med Surg
January 2025
Department of Dermatology, University of California San Diego, San Diego, CA, USA.
Background: Mohs micrographic surgery offers high cure rates of cutaneous malignancies, but surgeons are often faced with large and complicated defects after tumour removal.
Objectives: To assess the safety and complication rates of large flaps and grafts (measuring ≥30 cm) and larger complex linear closures (CLC, ≥12.5 cm, as defined by the American Medical Association Current Procedural Terminology code set), when performed under local anaesthesia.
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