AI Article Synopsis
- The study investigated how neovascularization (new blood vessel formation) develops in two types of posterior pharyngeal flap surgeries in dogs, comparing superior and inferior flap placements.
- The results showed that the superiorly based flaps demonstrated quicker blood vessel reconstruction, forming a mature network within 30 days, while inferiorly based flaps took longer to develop a mature network, reaching that stage by 90 days.
- Both flap types were ultimately able to establish a sufficient blood supply through their vascular networks, but their timelines for maturation differed significantly.
Article Abstract
Objective: To elucidate the reconstruction of neovascularization that occurred in the superiorly and inferiorly based posterior pharyngeal flaps in different time postoperatively.
Methods: Ten mongrel dogs were randomly divided into two experimental groups, which were performed superiorly or inferiorly based posterior pharyngeal flap surgery respectively. Each group was then subdivided into five subgroups, and were sacrificed immediately after operation or on 3, 7, 30, 90 day postoperative respectively. Microangiography was used to exhibite the vessel.
Results: 1. The blood vessel reconstruction of the superiorly based posterior pharyngeal flap was more rapid compared with the inferiorly based flap. The 3-day flap has established an axial vascular network, which was mature on the 30-day flap. The superiorly based posterior pharyngeal flap was mainly supplied by the pedicle. 2. The blood vessels reconstruction of the inferiorly based posterior pharyngeal flap was firstly occurred in the pedicle and apex of the flap, which grew slowly to the middle of the flap. The inferiorly based posterior pharyngeal flap was supplied by the pedicle and the soft palate. A mature axial vascular network was exhibited on the 90-day flap, which was not mature on the 30-day flap.
Conclusion: Both superiorly and inferiorly based posterior pharyngeal flap can establish an axial vascular network and gain ample blood supply.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
A comparative study of Twin-Block and van Beek Headgear-Activator on the three-dimensional morphology of the upper airway in growing children with mandibular retraction in skeletal class II malocclusion.
Clin Oral Investig
December 2024
Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China.
Objectives: To compare the variations in the upper airway of children with skeletal Class II mandibular retrognathism treated with van Beek Headgear-Activator (vBHGA) and Twin-Block (TB) appliances.
Materials And Methods: 40 children were involved in this retrospective study and divided into two intervention groups: the vBHGA group and the TB group, each comprising 20 individuals with an average age of 11.13 years.
Adenoid facies: a long-term vicious cycle of mouth breathing, adenoid hypertrophy, and atypical craniofacial development.
Front Public Health
December 2024
The First People's Hospital of Lianyungang, Lianyungang, China.
Adenoid hypertrophy (AH) is characterized by pathological hyperplasia of the nasopharyngeal tonsils, a component of Waldryer's ring, which represents the first immune defense of the upper respiratory tract. The pathogenic factors contributing to AH remain to be comprehensively investigated to date. Although some studies suggest that environmental exposure to smoke and allergens, respiratory tract infections, and hormonal influences likely contribute to the development of AH, further research is necessary for fully elucidating the effects of these factors on the onset and progression of AH.
View Article and Find Full Text PDFApplication of pedicled supraclavicular flaps in hypopharyngectomy with preservation of laryngeal function.
BMC Surg
December 2024
Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, No.25, Taiping Street, Jiangyang District, Luzhou, 646000, China.
Objective: To evaluate the efficacy of pedicled supraclavicular flaps in hypopharyngectomy reconstruction, with a focus on preserving laryngeal function.
Methods: From August 2019 to June 2022, 14 patients with primary hypopharyngeal carcinoma who met the inclusion and exclusion criteria and underwent the repair of hypopharyngeal defects using pedicled supraclavicular flaps were included retrospectively. Relevant clinical evaluation indicators include patient characteristics, defect sizes, flap sizes, flap harvesting time, postoperative hospital stay, postoperative complications, recurrence, and survival outcomes.
Unexpected Outcomes: Late Fat Hypertrophy and Obstructive Sleep Apnea Following Fat Grafting to the Posterior Pharynx for Velopharyngeal Insufficiency.
Cleft Palate Craniofac J
December 2024
Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA.
Autologous fat grafting for posterior pharyngeal wall augmentation has been described as a safe and effective treatment option for a subset of patients with mild to moderate velopharyngeal insufficiency (VPI). Reported complications including hyponasality and obstructive sleep apnea (OSA) are exceedingly rare. We describe the development of severe fat graft hypertrophy and subsequent OSA in a series of 3 patients several years after undergoing autologous fat grafting for VPI.
View Article and Find Full Text PDFPerforating pharyngeal injury caused by minor blunt trauma to the neck: A case report.
Trauma Case Rep
December 2024
Division of Emergency Medicine, Hakodate Goryoukaku Hospital, Hakodate City, Hokkaido, Japan.
Background: Pharyngeal perforation has been documented as a consequence of substantial external force applied to the neck. Such trauma is frequently accompanied by additional organ injury and cervical fracture. In this report, we present an exceptionally rare instance in which minor blunt trauma to the neck resulted in pharyngeal injury without concomitant damage to other organs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!