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https://www.readbyqxmd.com/read/27900891/chondrogenesis-of-human-adipose-derived-stem-cells-for-future-microtia-repair-using-co-culture-technique
#1
Bee See Goh, Siti Nurhadis Che Omar, Muhammad Azhan Ubaidah, Lokman Saim, Shamsul Sulaiman, Kien Hui Chua
CONCLUSION: In conclusion, these result showed HADSCs could differentiate into chondrocytes-like cells, dependent on signaling induced by TGF-β3 and chondrocytes. This is a promising result and showed that HADSCs is a potential source for future microtia repair. The technique of co-culture is a positive way forward to assist the microtia tissue. OBJECTIVE: Reconstructive surgery for the repair of microtia still remains the greatest challenge among the surgeons...
November 30, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27895974/genetic-screening-in-patients-with-craniofacial-malformations
#2
REVIEW
Amanda J Yoon, Binh N Pham, Katrina M Dipple
Craniofacial malformations include a variety of anomalies, including cleft lip with or without cleft palate, craniosynostosis, microtia, and hemifacial microsomia. All of these anomalies can be either isolated or part of a defined genetic syndrome. A clinical geneticist or genetic counselor should be a member of the craniofacial team to help determine which patients have isolated anomalies and which are likely to have a syndrome. They would then arrange for the appropriate genetic testing to confirm the diagnosis of the specific syndrome...
December 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27895971/genetic-advances-in-the-understanding-of-microtia
#3
REVIEW
Craig Gendron, Ann Schwentker, John A van Aalst
Microtia is a genetic condition affecting the external ears and presents clinically along a wide spectrum: minimally affected ears are small with minor shape abnormalities; extremely affected ears lack all identifiable structures, with the most extreme being absence of the entire external ear. Multiple genetic causes have been linked to microtia in both animal models and humans, which are improving our understanding of the condition and may lead to the identification of a unified cause for the condition. Microtia is also a prominent feature of several genetic syndromes, the study of which has provided further insight into the possible causes and genetic mechanisms of the condition...
December 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27891784/characterizing-facial-features-in-individuals-with-craniofacial-microsomia-a-systematic-approach-for-clinical-research
#4
Carrie L Heike, Erin Wallace, Matthew L Speltz, Babette Siebold, Martha M Werler, Anne V Hing, Craig B Birgfeld, Brent R Collett, Brian G Leroux, Daniela V Luquetti
BACKGROUND: Craniofacial microsomia (CFM) is a congenital condition with wide phenotypic variability, including hypoplasia of the mandible and external ear. We assembled a cohort of children with facial features within the CFM spectrum and children without known craniofacial anomalies. We sought to develop a standardized approach to assess and describe the facial characteristics of the study cohort, using multiple sources of information gathered over the course of this longitudinal study and to create case subgroups with shared phenotypic features...
November 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
https://www.readbyqxmd.com/read/27884347/fabrication-of-three-dimensional-scan-to-print-ear-model-for-microtia-reconstruction
#5
Byoungjun Jeon, Chiwon Lee, Myungjoon Kim, Tae Hyun Choi, Sungwan Kim, Sukwha Kim
BACKGROUND: Microtia is a congenital deformity of the external ear that occurs in 1 of every 5000 births. Microtia reconstruction using traditional two-dimensional templates does not provide highly detailed ear shapes. Here, we describe the feasibility of using a three-dimensional (3D) ear model as a reference. MATERIALS AND METHODS: Seven children aged from 11 to 16 (6 grade III and 1 grade II microtia) were recruited from Seoul National University Children's Hospital, Korea...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27861942/the-ectopic-accessory-parotid-system-with-congenital-cheek-fistula-an-overview-and-current-update
#6
REVIEW
Mainak Dutta
OBJECTIVE: This review attempts to provide a comprehensive, updated overview of the ectopic accessory parotid system (EAPS) from clinical and developmental perspectives and investigates its eligibility to be included in the oculo-auriculo-vertebral spectrum (OAVS). REVIEW METHODS: Results of the keyword-based search in the PubMed/MEDLINE, Google Scholar, LILACS, and Cochrane Library were subjected to the given inclusion and exclusion criteria that corroborated with the definition of EAPS...
November 12, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27860439/chondrocytes-from-congenital-microtia-possess-an-inferior-capacity-for-in-vivo-cartilage-regeneration-to-healthy-ear-chondrocytes
#7
Yunpeng Gu, Ning Kang, Ping Dong, Xia Liu, Qian Wang, Xin Fu, Li Yan, Haiyue Jiang, Yilin Cao, Ran Xiao
No abstract text is available yet for this article.
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27857806/newborn-with-congenital-facial-palsy-and-bilateral-anotia-atresia-of-external-auditory-canal-rare-occurrence
#8
Rohan R Mahale, Anish Mehta, Aju Abraham John, Kiran Buddaraju, Abhinandan K Shankar, Srinivasa Rangasetty
Congenital facial palsy (CFP) is clinically defined as facial palsy of the seventh cranial nerve which is present at birth or shortly thereafter. It is generally considered to be either developmental or acquired in origin. Facial palsy of developmental origin is associated with other anomalies including those of pinna and external auditory canal, which range from mild defects to severe microtia and atresia. We report a 2-day-old male newborn that had right CFP with bilateral anotia and atresia of external auditory canals which is rare...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27843263/goldenhar-syndrome-a-case-report-with-review
#9
Mridula Goswami, Urvashi Bhushan, Babita Jangra
: Goldenhar syndrome is a rare condition which is characterized by a multitude of anomalies involving craniofacial structures, vertebrae, internal organs and usually occurs unilaterally. The etiology of this syndrome is unclear since it varies genetically and is linked to a plethora of reasons. Herein, we report a case of Goldenhar syndrome with hemifacial microsomia and microtia along with systemic involvement which was clinically and radio-graphically assessed. Many classical signs of the syndrome were present in the patient along with few rare ones...
July 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/27834100/sound-lateralization-ability-of-patients-with-bilateral-microtia-and-atresia-after-bilateral-reconstruction-of-auricles-and-external-auditory-canals-and-fitting-of-new-canal-type-hearing-aids-to-replace-a-bone-conduction-hearing-aid
#10
Kimitaka Kaga, Hirotaka Asato
CONCLUSION: Each of eight patients with bilateral microtia and atresia underwent bilateral reconstruction of the auricles and external auditory canals and were fitted bilateral canal-type hearing aids in the operated ears to replace a bone conduction hearing aid. The ability to discriminate inter-aural intensity difference (IID) and even inter-aural time difference (ITD) was retained in all these patients. OBJECTIVE: This study studied the post-operative sound lateralization ability of patients with bilateral microtia and atresia after total reconstruction of both auricles and external auditory canals, followed by fitting of bilateral canal-type hearing aids...
November 11, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27818252/associated-anomalies-in-cases-with-anotia-and-microtia
#11
Claude Stoll, Yves Alembik, Beatrice Dott, Marie-Paule Roth
Infants with anotia and microtia (AM) often have other non-AM associated congenital anomalies. The purpose of this investigation was to assess the prevalence and the types of these associated anomalies in a defined population. The associated anomalies in infants with AM were collected in all livebirths, stillbirths and terminations of pregnancy during 29 years in 387,067 consecutive births in the area covered by our population-based registry of congenital malformations. Of the 146 cases with AM registered during this period, representing a prevalence of 3...
December 2016: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/27777177/management-of-chest-deformity-caused-by-microtia-reconstruction-comparison-of-autogenous-diced-cartilage-versus-cadaver-cartilage-graft-partial-filling-techniques
#12
Ju Young Go, Bo Young Kang, Jin Hee Hwang, Kap Sung Oh
BACKGROUND: Efforts to prevent chest wall deformity after costal cartilage graft are ongoing. In this study, we introduce a new method to prevent donor site deformation using irradiated cadaver cartilage (ICC) and compare this method to the autogenous diced cartilage (ADC) technique. METHODS: Forty-two pediatric patients comprised the ADC group (n = 24) and the ICC group (n = 18). After harvesting costal cartilage, the empty perichondrial space was filled with autologous diced cartilage in the ADC group and cadaver cartilage in the ICC group...
September 23, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27774762/hearing-characterization-in-oculoauriculovertebral-spectrum-a-prospective-study-with-10-patients
#13
Thayse Bienert Goetze, Pricila Sleifer, Rafael Fabiano Machado Rosa, Alessandra Pawelec da Silva, Carla Graziadio, Paulo Ricardo Gazzola Zen
Oculoauriculovertebral spectrum (OAVS), also known as Goldenhar syndrome, is considered a condition associated to failing of embryogenesis involving the first and second branchial arches, leading to structural abnormalities arising from it. The aim of this study is to verify the hearing features presented by patients with OAVS and provide additional information that may contribute to improvement of speech therapy. The sample consisted of 10 individuals diagnosed with OAVS and cared for by the Clinical Genetics Service...
October 24, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27765391/fabrication-of-postsurgical-auricle-separator-stent-in-reconstruction-of-the-ear
#14
Kumar C Pradeep, Shahid M A Mohammed, Mandavia Anisha
A natural appearing ear with appropriate projection from the head remains a great challenge in the reconstruction of the ear. Surgical and prosthetic means have been addressed in the management of patients with microtia, with each carrying its own merits and demerits. Lack of adequate projection of the ear and adhesion of tissues are some common complications of reconstructive surgery that can adversely affect the treatment outcome. This article describes a technique for the fabrication of a postsurgical stent to prevent adhesion of the surgically reconstructed ear to the underlying tissues...
October 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27759585/investigation-of-microsurgical-technique-combined-with-skin-flap-expansion-for-ear-reconstruction-in-treating-hunter-type-iii-congenital-microtia
#15
Minyan Zhang, Xiaochen Tian, Jun Shi, Huxian Liu, Ning Liu, Zhengjun Cui
OBJECTIVE: This study aims to observe the efficacies of microsurgical technique combined with the Zhuang's skin soft tissue expander in treating Hunter type III congenital microtia. METHODS: Fifty-eight patients (61 ears) were enrolled from 2003 to 2012; the skin tissue expander was embedded subepidermally in the first stage via the intrahairline longitudinal incision in the postauricular mastoid area, the diseased-side rib cartilage was then taken for preparing the ear bracket in the second stage, and the tragus was surgically reconstructed in the third stage...
October 17, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27739349/costal-cartilage-graft-with-perichondrium-a-possible-anti-adhesive-material
#16
Norio Fukuda, Hirotaka Asato, Kohei Umekawa, Goro Takada, Takeshi Kan, Shoichi Sasaki
BACKGROUND: Adhesion occurs as a part of the wound healing process, but it sometimes compromises patients' daily activities. The authors were looking for materials and methods that could prevent adhesion, and noticed that the costal cartilage has possibility. The anti-adhesive property of the costal cartilage was examined histologically. METHODS: Thirty-five patients with microtia who provided consent for participating in this study were enrolled between April 2008 and March 2015...
October 14, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27739185/middle-ear-abnormalities-in-van-maldergem-syndrome
#17
Emmy Verheij, Henricus G X M Thomeer, Frank A Pameijer, Vedat Topsakal
Van Maldergem syndrome (VMS) is a very rare syndrome that was first described in 1992. The main features of this syndrome comprise intellectual disability, blepharo-naso-facial malformation, and hand anomalies. Almost all nine described patients have been shown to be affected by conductive hearing impairment attributed to microtia, and atresia of the outer ear canal. Here, we present a VMS patient with congenital malformations of the middle ear as the main reason for severe conductive bilateral hearing impairment...
October 14, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27712823/microtia-reconstruction
#18
Randall A Bly, Amit D Bhrany, Craig S Murakami, Kathleen C Y Sie
Microtia reconstruction is a challenging endeavor that has seen significant technique evolution. It is important to educate patients and their families to determine the best hearing rehabilitation and ear reconstructive options. Microtia is often associated with aural atresia, hearing loss, and craniofacial syndromes. Optimal care is provided by multiple disciplines, including a reconstructive surgeon, an otologic surgeon, an audiologist, and a craniofacial pediatrician. Microtia management includes observation, prosthetic ear, autologous cartilage reconstruction, or alloplastic implant placement...
November 2016: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27710955/morphological-variation-of-subarcuate-artery-and-canal-in-atresia
#19
Keguang Chen, Huiying Lyu, Lin Yang, Tianyu Zhang, Peidong Dai
OBJECTIVES: An aberrant subarcuate artery (SAA) and its related canal are infrequent and asymptomatic. The presence of this variation may cause untoward hemorrhages, if accidentally nicked. Therefore, it is important for otologists to be aware of this entity, and its relative anatomy, to avoid any unexpected complication. We present a case of a 7-year-old girl who presented with right-sided microtia with membranous atresia. METHODS: High-resolution computed tomographic scan and three-dimensional reconstruction of the temporal bone showed bilateral enlarged SAA...
October 7, 2016: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/27648330/abnormal-congenital-location-of-stapes-superstructure-clinical-and-embryological-implications
#20
Vânia Henriques, Rafaela Teles, Ana Sousa, Roberto Estevão, Jorge Rodrigues, Alexandra Gomes, Francisco Silva, Ângelo Fernandes, Fausto Fernandes
Congenital middle ear malformations are rare. Most part of them are usually associated with other malformations, such as aural atresia, microtia, and dysmorphic craniofacial features. A clinical case of a 24-year-old male with a right-sided conductive hearing loss since his childhood, without craniofacial malformation, is presented. He was proposed for exploratory tympanotomy under the suspicious diagnosis of otosclerosis. The surgery revealed an abnormal location of stapes' superstructure, which was attached to the promontory and had an isolated and mobile osseous footplate in the oval window...
2016: Case Reports in Otolaryngology
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