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Introduction: The Portuguese experience in microsurgical reconstruction of the head and neck after oncological surgery is scantly described. The primary aim of this study was to characterize the use of microvascular reconstruction after head and neck tumor resection in a Portuguese tertiary oncological centerMaterial and Methods: The authors retrospectively evaluated 114 microvascular free flap procedures performed for head and neck reconstruction after oncological resection in a department of Head and Neck Surgery of a Portuguese tertiary oncological center. Patients were operated on from January 2012 to May 2018. Data on patient demographic features, tumour characteristics, perioperative complications, postoperative aesthetic and functional results, survival time and time to recurrence were extracted.
Results: Most tumours mandating microsurgical reconstruction were mucosal squamous cell carcinomas (85%) and were located in the oral region (95.6%). Around 45% of the patients had a T4a tumour and 30% a T2 tumour. Cervical metastases were present in 45.6% of the cases. The radial forearm flap and the fibular flap were the most commonly used microsurgical reconstructive options (58% and 41%, respectively). More than 80% of patients had no post-operative complications. Partial necrosis of the flap occurred in 6.1% of patients, while total flap necrosis occurred in 3.5% of cases. Aesthetic and functional results were considered at least satisfactory in all patients in which the flaps survived.
Discussion: This study is by far the largest series of microsurgical head and neck reconstruction after oncological surgery reported by a single tertiary centre in Portugal. Survival and functional benefits are similar to those reported in other large oncological centres in the world.
Conclusion: Microvascular reconstruction seems like a reliable treatment option in head and neck oncological surgery at our institution.
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http://dx.doi.org/10.20344/amp.13734 | DOI Listing |
J Biomed Sci
September 2025
Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
Background: PPM1D (protein phosphatase Mg⁺/Mn⁺ dependent 1D) is a Ser/Thr phosphatase that negatively regulates p53 and functions as an oncogenic driver. Its gene amplification and overexpression are frequently observed in various malignancies and disruption of PPM1D degradation has also been reported as a cause of cancer progression. However, the precise mechanisms regulating PPM1D stability remain to be elucidated.
View Article and Find Full Text PDFEur J Orthop Surg Traumatol
September 2025
Department of Orthopaedics, Jupiter Hospital, Thāne, India.
We aim to describe an approach for reducing the posteriorly dislocated humeral head through the rotator interval via a deltopectoral approach that is frequently utilized for internal fixation of proximal humerus fractures and fracture dislocations. The sheath of the long head of biceps (LHB) and the rotator interval capsule are opened till the glenoid; this enables access to the glenohumeral joint via the rotator interval. A long-handle Cobb elevator is introduced through the rotator interval and, under intraoperative imaging, advanced posteromedially to the dislocated humeral head.
View Article and Find Full Text PDFNature
September 2025
Department of Translational Genomics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Small cell lung cancer (SCLC) is a highly aggressive type of lung cancer, characterized by rapid proliferation, early metastatic spread, frequent early relapse and a high mortality rate. Recent evidence has suggested that innervation has an important role in the development and progression of several types of cancer. Cancer-to-neuron synapses have been reported in gliomas, but whether peripheral tumours can form such structures is unknown.
View Article and Find Full Text PDFNature
September 2025
Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA.
Neural activity is increasingly recognized as a crucial regulator of cancer growth. In the brain, neuronal activity robustly influences glioma growth through paracrine mechanisms and by electrochemical integration of malignant cells into neural circuitry via neuron-to-glioma synapses. Outside of the central nervous system, innervation of tumours such as prostate, head and neck, breast, pancreatic, and gastrointestinal cancers by peripheral nerves similarly regulates cancer progression.
View Article and Find Full Text PDFJ Orthop Sci
September 2025
Department of Orthopaedic Surgery, NHO Saga Hospital, 1-20-1 Hinode, Saga 849-0923, Japan.
Background: Hounsfield units (HU) on computed tomography (CT) are strongly correlated with bone mineral density (BMD) and may aid in osteoporosis screening. However, there is no standardized method for assessing bone density in displaced femoral head fractures. This study aimed to measure HU values in the femoral head using preoperative post-fracture CT images of patients with intertrochanteric femoral fractures and investigate whether it correlated with BMD measured by dual-energy X-ray absorptiometry (DXA).
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