Objective: Native and aortic graft infections are rare, but they represent one of the most life threatening complications of vascular surgery. Several materials and surgical approaches have been developed so far. Among them, cryopreserved allografts have been proposed as a treatment option. A systematic review and meta-analysis was conducted to investigate the role of cryopreserved allografts for arterial reconstruction after aorto-iliac infection.
Methods: The current meta-analysis was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Patient baseline characteristics were investigated, along with 30 outcomes after use of cryopreserved arterial allografts for reconstruction after aorto-iliac infection. Pooled proportions with 95% CIs of outcome rates were calculated.
Results: A total of 31 studies, including 1,377 patients, finally participated in the meta-analysis. Among the early outcomes, 30 day mortality was 14.91% (95% CI 11.78-18.31). Peri-anastomotic rupture/allograft disruption rate was 5.90% (95% CI 2.77-9.88), while pooled aneurysmal degeneration/allograft dilatation was 4.99% (95% CI 1.60-9.68). A pooled rate of 3.11% (95% CI 1.60-4.98) was estimated for pseudoaneurysm formation after the use of cryopreserved arterial allografts, while the allograft thrombotic/stenotic complication rate and peri-anastomotic infection were 12.19% (95% CI 7.90-17.15) and 3.32% (95% CI 1.90-5.03), respectively. Mortality during follow up was 19.24% (95% CI 11.97-27.58), while allograft related mortality during follow up was 3.58% (95% CI 1.56-6.15). A pooled allograft related re-operation rate was estimated at 24.87% (95% CI 17.89-32.51).
Conclusions: The use of cryopreserved allograft seems to be a safe and durable option with acceptable outcomes for treatment of aorto-iliac infection.
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http://dx.doi.org/10.1016/j.ejvs.2019.03.003 | DOI Listing |
Plast Reconstr Surg Glob Open
December 2024
Britecyte, Inc., Frederick, MD.
Background: Loss or displacement of a fat pad on the foot increases plantar pressure, leading to pain and plantar ulcers. These ulcers, especially in patients with diabetic neuropathy, have high recurrence rates, often resulting in amputations. Standard of care focuses on reducing plantar pressure with shoe padding or orthotic devices, leaving the restoration of the fat pad as an unmet medical need.
View Article and Find Full Text PDFJ Orthop Surg Res
December 2024
Department of Orthopaedic Surgery, Dankook University Hospital, Dankook University College of Medicine, 201, Manghyang-ro, Dongnam-gu, Cheonan-si, Republic of Korea.
Background: Despite their ability to regenerate as well as autografts, the use of nerve allografts is limited by the need for immunosuppression and the risk of disease transmission. Further, decellularized allografts lacking Schwann cells limit axonal regeneration in long nerve defects. This study evaluated sciatic nerve regeneration in rats implanted with cold- or cryopreserved allografts, and examined the effects of FK506, an immunosuppressant that targets calcineurin function, on motor recovery.
View Article and Find Full Text PDFJTCVS Tech
December 2024
Department of Thoracic and Endocrine Surgery, Jean Perrin Comprehensive Cancer Center, Clermont-Ferrand, France.
Eur Ann Otorhinolaryngol Head Neck Dis
December 2024
Service d'ORL et chirurgie cervico-faciale, hôpitaux universitaires de Strasbourg, Strasbourg, France; Inserm (Institut national de la santé et de la recherche médicale) unité 1121, biomatériaux et bioingénierie, université de Strasbourg, Strasbourg, France. Electronic address:
Case Description: A 70 year-old woman presenting T4aN2cM0 laryngeal carcinoma first underwent total laryngectomy with airway reconstruction by cryopreserved aortic allograft. Six months after chemoradiotherapy, she underwent endoscopic surgery to create a neo-laryngopharynx.
Results: At 13 months after primary surgery, day- and night-time breathing was effectively restored, with a little persistent salivary false passage, and a whispering but comprehensible voice after tracheostomy closure.
J Orthop Traumatol
November 2024
Department of Orthopaedic Oncology Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China.
Purpose: This study aims to compare the clinical outcomes of intercalary frozen autograft and allograft reconstruction for primary malignant bone tumors.
Methods: A retrospective study was conducted on 144 patients who underwent intercalary biological reconstruction for primary malignant bone tumors at a single institution between January 2012 and July 2023. Seventy-two patients underwent intercalary liquid nitrogen-frozen autograft reconstruction, and 72 patients underwent intercalary allograft reconstruction in this study.
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