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Surgical and Radiologic Anatomy : SRA Feb 2019The aims of the study are to define anatomy of the facial nerve (FN) and its main trunks as well as their relationship with the posterior auricular artery in fetal...
PURPOSE
The aims of the study are to define anatomy of the facial nerve (FN) and its main trunks as well as their relationship with the posterior auricular artery in fetal period to evaluate the data for regional surgery in newborns and young infants.
METHODS
Formalin-fixed 34 fetuses from anatomy laboratory collection with a mean gestational age of 26.4 ± 4.6 (20-36) weeks were dissected. Parameters regarding the presence of major or minor trunks, width, length, branching pattern of FN were evaluated according to side, gender and trimester. The positional relationship of posterior auricular artery with the FN trunk was inspected.
RESULTS
On all sides only the major trunk of the FN was detected. For length and width parameters, there was no statistically significant difference for side and gender except for trimester. Linear functions were found as 0.329 + 0.025 × weeks for width and 5.264 + 0.185 × weeks for length. There are statistically significant linear relationships between width and length of the FN trunk and week parameters as r = 0.507, p < 0.001 and r = 0.484, p < 0.001, respectively. Posterior auricular artery crossed FN trunk laterally in 42 of 53 sides, medially in 9 sides while it was puncturing it proximally in 2 sides. In all cases, it was in close contact to the FN trunk. FN trunk showed bifurcation in 82% and trifurcation in 18%.
CONCLUSION
Dimensions of FN trunk, growth ratio and linear functions can be beneficial in understanding the fetal growth of FN trunk and its usage for grafts. Data about the relationship of the posterior auricular artery with FN trunk may be crucial in avoiding iatrogenic injuries during surgery in early ages.
Topics: Cadaver; Carotid Artery, External; Facial Nerve; Fetus; Humans
PubMed: 30367188
DOI: 10.1007/s00276-018-2126-x -
Posterior auricular artery free flap reconstruction of the retroauricular sulcus in microtia repair.Journal of Plastic, Reconstructive &... Sep 2021Autologous repair using costal cartilage grafts remains the most widely accepted method of microtia reconstruction. A major complication of current techniques is loss of...
BACKGROUND
Autologous repair using costal cartilage grafts remains the most widely accepted method of microtia reconstruction. A major complication of current techniques is loss of ear shape caused by scarring, contracture and cartilage absorption. We present a new surgical technique utilizing the posterior auricular artery free flap in microsurgical reconstruction of the retroauricular sulcus in microtia.
METHOD
Reconstruction is performed in two stages. In the first stage, a fabricated costal cartilage framework is inserted into a skin pocket as described by Nagata. In the second stage, the ear framework is elevated from the scalp and held by an additional cartilage wedge. Following indocyanine green angiography perforator mapping, a posterior auricular artery perforator flap is harvested from the contralateral (normal) ear and used to reconstruct the posterior auricular sulcus covering the cartilage framework and elevating wedge.
RESULTS
The technique was applied to three patients aged 11-15 years with a follow-up time of 8 months to 3 years. The average flap artery diameter was 0.73 mm and the vein was 0.7 mm. Venous congestion occurred in one case and was resolved with a vein graft leading to complete flap recovery. Good ear shape, elevation, projection, skin color and texture were achieved in all the cases.
CONCLUSION
Posterior auricular artery flap reconstruction of the retroauricular sulcus in microtia repair is a useful alternative to the current skin graft and tissue expander-based techniques. It provides the ideal skin color and texture match and may improve the overall results of microtia reconstruction by enhancing vascularity.
Topics: Adolescent; Angiography; Arteries; Child; Congenital Microtia; Costal Cartilage; Ear; Female; Free Tissue Flaps; Humans; Indocyanine Green; Male; Plastic Surgery Procedures
PubMed: 33518502
DOI: 10.1016/j.bjps.2020.12.047 -
Bioengineering (Basel, Switzerland) Apr 2023Virtual reality (VR) and augmented reality (AR) have evolved since their introduction to medicine in the 1990s. More powerful software, the miniaturization of hardware,... (Review)
Review
Virtual reality (VR) and augmented reality (AR) have evolved since their introduction to medicine in the 1990s. More powerful software, the miniaturization of hardware, and greater accessibility and affordability enabled novel applications of such virtual tools in surgical practice. This scoping review aims to conduct a comprehensive analysis of the literature by including all articles between 2018 and 2021 pertaining to VR and AR and their use by plastic and craniofacial surgeons in a clinician-as-user, patient-specific manner. From the initial 1637 articles, 10 were eligible for final review. These discussed a variety of clinical applications: perforator flaps reconstruction, mastectomy reconstruction, lymphovenous anastomosis, metopic craniosynostosis, dermal filler injection, auricular reconstruction, facial vascularized composite allotransplantation, and facial artery mapping. More than half (60%) involved VR/AR use intraoperatively with the remainder (40%) examining preoperative use. The hardware used predominantly comprised HoloLens (40%) and smartphones (40%). In total, 9/10 Studies utilized an AR platform. This review found consensus that VR/AR in plastic and craniomaxillofacial surgery has been used to enhance surgeons' knowledge of patient-specific anatomy and potentially facilitated decreased intraoperative time via preoperative planning. However, further outcome-focused research is required to better establish the usability of this technology in everyday practice.
PubMed: 37106667
DOI: 10.3390/bioengineering10040480 -
Plastic and Reconstructive Surgery Sep 2017In the field of experimental facial vascularized composite tissue allotransplantation, a human auricular subunit model, pedicled on both superficial temporal and...
UNLABELLED
In the field of experimental facial vascularized composite tissue allotransplantation, a human auricular subunit model, pedicled on both superficial temporal and posterior auricular arteries, was described. Clinical cases of extensive auricular replantation, however, suggested that a single artery could perfuse the entire flap. In this study, variants of this single-pedicle approach have been studied, aiming to develop a more versatile replantation technique, in which the question of venous drainage has also been addressed. For arterial perfusion study, the authors harvested 11 auricular grafts, either on a single superficial temporal artery pedicle (n = 3) or a double superficial temporal and posterior auricular artery pedicle (n = 8). The authors then proceeded to selective barium injections, in the superficial temporal, posterior auricular, or both superficial temporal and posterior auricular arteries. Arteriograms were acquired with a micro-computed tomographic scan and analyzed on three-dimensionally reconstructed images. Venous drainage was investigated in eight hemifaces, carefully dissected after latex injection. Observations showed a homogenous perfusion of the whole auricle in all arterial graft variants. Venous drainage was highly variable, with either a dominant superficial temporal vein (37.5 percent), dominant posterior auricular vein (12.5 percent), or co-dominant trunks (50 percent). The authors demonstrated that auricular subunit vascularized composite tissue allotransplantation can be performed on a single artery, relying on the dynamic intraauricular anastomoses between superficial temporal artery and posterior auricular branches. Potentially, this vascular versatility is prone to simplify the subunit harvest and allows various strategies for pedicle selection. Venous drainage, however, remains inconstant and thus the major issue when considering auricular transplantation.
CLINICAL QUESTION/LEVEL OF EVIDENCE
Therapeutic, V.
Topics: Arteries; Ear Auricle; Humans; Models, Biological; Plastic Surgery Procedures; Surgical Flaps; Tissue Transplantation; Tissue and Organ Procurement; Veins
PubMed: 28574951
DOI: 10.1097/PRS.0000000000003591 -
Clinical Neurology and Neurosurgery Aug 2023Transvenous onyx (Microtherapeutics, Irvine, CA, USA) embolization with sinus reconstruction using a venous balloon is a novel technique to embolise dural arterial...
Transvenous onyx (Microtherapeutics, Irvine, CA, USA) embolization with sinus reconstruction using a venous balloon is a novel technique to embolise dural arterial venous fistula while preserving the sinus. We elucidate the technical tips and tricks that were employed to treat this torcular dural AVF in an elderly male with visual disturbances secondary to papilledema. Right external carotid artery injection revealed a type 2c fistula along the torcula with feeders from the right parietal & petrosal branches of the middle meningeal artery and dural branches of the posterior auricular and the occipital artery. The right distal transverse and the sigmoid were occluded with retrograde flow into the superior sagittal sinus and the cortical veins. XPER CTA analysis revealed the fistula point to be along the wall of the torcula. Through right femoral artery access, a neuron max (Penumbra inc.USA) was placed in the right common carotid artery. An eclipse (Balt Extrusion, France) 6 × 12 mm single lumen balloon was placed in the proximal ECA to achieve flow reduction. Thereafter, through bilateral femoral venous approach, two neuron max 8 F (Penumbra inc.USA) were placed into the left jugular vein. A Copernic RC balloon 10×80 mm (Balt Extrusion, France) was placed from the left to the right transverse sinus. Further, two microcatheters, 1.5 F Marathon (Medtronic, Minneapolis, MI, USA) were navigated into the feeding arteries from the venous end. Microcatheter injections were taken with inflation of the venous balloon to determine the point at which sinus and cortical vein reflux is absent. Following that onyx 18 was injected under biplane fluoroscopy with an adequately inflated arterial and venous balloon. We could achieve retrograde permeation of the onyx into the fistula and the arterial feeders resulting in complete occlusion while preserving the sinus. Careful analysis of the angioarchitecture of the fistula and evaluating for delayed cerebral venous drainage is the key to determining the right strategy to achieve complete occlusion of the fistula.
Topics: Humans; Male; Aged; Central Nervous System Vascular Malformations; Embolization, Therapeutic; Cerebral Veins; Transverse Sinuses; Arteries
PubMed: 37352678
DOI: 10.1016/j.clineuro.2023.107795 -
Clinica E Investigacion En... 2024One of the objectives of the Spanish Society of Arteriosclerosis is to contribute to the knowledge, prevention and treatment of vascular diseases, which are the leading...
One of the objectives of the Spanish Society of Arteriosclerosis is to contribute to the knowledge, prevention and treatment of vascular diseases, which are the leading cause of death in Spain and entail a high degree of disability and health expenditure. Atherosclerosis is a multifactorial disease and its prevention requires a global approach that takes into account the associated risk factors. This document summarises the current evidence and includes recommendations for patients with established vascular disease or at high vascular risk: it reviews the symptoms and signs to evaluate, the laboratory and imaging procedures to request routinely or in special situations, and includes the estimation of vascular risk, diagnostic criteria for entities that are vascular risk factors, and general and specific recommendations for their treatment. Finally, it presents aspects that are not usually referenced in the literature, such as the organisation of a vascular risk consultation.
Topics: Humans; Vascular Diseases; Spain; Atherosclerosis; Global Health; Risk Factors; Heart Disease Risk Factors; Cardiovascular Diseases; Societies, Medical
PubMed: 38490888
DOI: 10.1016/j.arteri.2024.02.001 -
World Neurosurgery: X Jul 2023The hemicraniectomy is a common technique used in a variety of pathologies including some traumatic brain injury and malignant stroke. A novel technique of performing...
OBJECTIVE
The hemicraniectomy is a common technique used in a variety of pathologies including some traumatic brain injury and malignant stroke. A novel technique of performing hemicraniectomies using a retro-auricular incision can avoid transgressing the temporalis muscle and superficial temporal artery while providing adequate hemicranial exposure.
METHODS
This technique was reproduced in a skull base lab using a cadaveric head. The key steps of this approach were illustrated in step-by-step fashion. A post-approach CT scan of the cadaver was performed to evaluate the decompression exposure.
RESULTS
This approach can provide sufficient middle fossa decompression and area of exposure, while preserving the temporalis along with the superficial temporal artery. A step-by-step technical illustration is demonstrated in the present note.
CONCLUSIONS
The modified retro-auricular myocutaneous flap is a novel technique in hemicraniectomy which can provide sufficient middle fossa decompression and exposure while sparing the temporalis muscle and superficial temporal artery during the approach.
PubMed: 37021293
DOI: 10.1016/j.wnsx.2023.100174 -
Aesthetic Plastic Surgery Aug 2022Temporoparietal fascia is important for auricular reconstruction or repair after auricular reconstruction. Thus, the course of the superficial temporal artery (STA) is...
OBJECTIVE
Temporoparietal fascia is important for auricular reconstruction or repair after auricular reconstruction. Thus, the course of the superficial temporal artery (STA) is of vital importance to prevent destruction of the artery. The purpose of this study was to evaluate the course of the superficial temporal artery in patients with congenital microtia and its relationship with remnants.
METHODS
This was a prospective study. Patients with microtia who underwent auricular reconstruction in our hospital from January 2021 to July 2021 underwent ultrasound examination of the STA. Under the guidance of ultrasound, the superficial temporal artery and its branches were located and marked on the body surface before the operation, ranging from the zygomatic arch plane to the temporal parietal artery. In addition, the hemodynamics of the STAs were recorded.
RESULTS
A total of 108 patients with microtia were collected, including 106 patients with unilateral microtia and 2 patients with bilateral microtia. There were 82 cases of lobule type, 21 cases of small concha type, and 7 cases of large concha type. The superficial temporal artery in 103 ears was divided into two branches: the parietal branch and the frontal branch, but there was only one branch in 7 ears. The parietal branch was absent in 5 cases, and the frontal branch was absent in 2 cases. In most of the ears, the bifurcation was located above the zygomatic arch plane. Only in 2 ears was the bifurcation located below the zygomatic arch, and the most common bifurcation position was the eyebrow arch level (43.7%). Regarding the shortest distances between the STA and the remnant, they were less than 0.5 cm in 47 ears, more than 1 cm in 30 ears, and 0.5 cm to 1 cm in 33 ears.
CONCLUSION
The course of STA varied greatly and there were occasional single branches. The distances between the STA and remnant were often near 0.5 cm by ultrasonography. Therefore, when removing the remnant and separating the pocket, care should be taken to avoid arterial injury.
LEVEL OF EVIDENCE IV
This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Topics: Congenital Microtia; Ear Auricle; Humans; Prospective Studies; Plastic Surgery Procedures; Temporal Arteries; Zygoma
PubMed: 35386006
DOI: 10.1007/s00266-022-02802-0 -
Acta Otorrinolaringologica Espanola 2023Unstable cavities are defined as cavities with cerumen accumulation that need frequent cavity cleaning in the out-patient clinic, cavities that are intolerant to water...
OBJECTIVE
Unstable cavities are defined as cavities with cerumen accumulation that need frequent cavity cleaning in the out-patient clinic, cavities that are intolerant to water due to risk of infection or that are subject to frequent infection and otorrhoea. The objective of this study is to address the problem of troublesome mastoid cavities, with the performance of secondary mastoid obliteration and canal wall reconstruction, using a novel posterior auricular artery (PAA) fascia-periosteum flap.
MATERIALS AND METHODS
A prospective study was designed, only secondary obliterations were included. Unstable mastoid cavities were defined as Merchant grade 2 or 3 and were included for surgery.
RESULTS
At 12 months of follow up, a complete external auditory canal (EAC) and a self-cleaning ear were achieved in all 23 patients. Completely dry ears were achieved in 21 patients (91.3%). An air-bone gap improvement of 5dB was achieved.
CONCLUSION
Mastoid obliteration and EAC reconstruction are effective procedures to treat troublesome post canal wall down mastoid cavities. They improve quality of life and enable patients to overcome ear discharge. A standard EAC size enables the utilization of conventional hearing aids, it also reduces the need for constant mastoid cleaning and decreases healthcare expenses. The PAA flap seems to be an effective procedure to achieve all these features, as it is used to obliterate the mastoid and becomes a structural component of the neo-EAC.
Topics: Humans; Periosteum; Mastoid; Prospective Studies; Quality of Life; Arteries; Fascia
PubMed: 36858782
DOI: 10.1016/j.otoeng.2021.07.006 -
Medicine Apr 2022With the advantages of miniature damage and optimal effectiveness, percutaneous coronary intervention (PCI) has been performed in a large number of coronary artery...
BACKGROUND
With the advantages of miniature damage and optimal effectiveness, percutaneous coronary intervention (PCI) has been performed in a large number of coronary artery disease patients. However, recent studies have indicated a higher incidence of depression on post-PCI patients. Acupuncture therapy is effective for depression. As a form of acupuncture, the auricular acupuncture has been used to relieve symptoms in patients with post-PCI depression, but its effectiveness and safety have not yet reached a definitive conclusion. Therefore, this systematic review and meta-analysis protocol is planned to evaluate the efficacy and safety of auricular acupuncture for depression in post-PCI patients.
METHODS
Six English databases (PubMed, Web of Science, MEDLINE, EMBASE, Springer Cochrane Library, and WHO International Clinical Trials Registry Platform) and 4 Chinese databases (Wan Fang Database, Chinese Scientific Journal Database, China National Knowledge Infrastructure Database, and Chinese Biomedical Literature Database) will be searched normatively according to the rule of each database from the inception to February 1, 2022. Two reviewers will independently conduct article selection, data collection, and risk of bias evaluation. Any disagreement will be resolved by discussion with the third reviewer. Either the fixed-effects or random-effects model will be used for data synthesis based on the heterogeneity test. The change in the scores on the Hamilton Depression Scale and the Self-rating Depression Scale will be used as the main outcome measure. All-cause mortality, cardiac mortality, major adverse cardiovascular events, rehospitalisation rate, and Quality of Life Scale as the secondary outcome. Treatment Emergent Symptom Scale, general physical examination (temperature, pulse, respiration, blood pressure), routine examination of blood, urine and stool, electrocardiogram, liver and kidney function examination as the security indexes. RevMan 5.3.5 will be used for meta-analysis.
RESULTS
This study will provide high-quality evidence to assess the efficacy and safety of auricular acupuncture for depression in post-PCI patients.
CONCLUSION
This systematic review will explore whether auricular acupuncture is an effective and safe intervention for depression in post-PCI patients.
INPLASY REGISTRATION NUMBER
INPLASY202230003.
Topics: Acupuncture, Ear; Depression; Humans; Meta-Analysis as Topic; Percutaneous Coronary Intervention; Quality of Life; Systematic Reviews as Topic
PubMed: 35475802
DOI: 10.1097/MD.0000000000029173