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Marcus gunn jaw winking syndrome

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https://www.readbyqxmd.com/read/29705893/a-study-of-changes-in-levator-muscle-in-congenital-ptosis
#1
Abhidnya Surve, M C Sharma, Neelam Pushker, M S Bajaj, Rachna Meel, Seema Kashyap
PURPOSE: To study microscopic and ultrastructural changes of levator palpebrae superioris (LPS) muscle in congenital ptosis. METHODS: In this prospective observational study, LPS muscle was studied in 77 eyelids with congenital ptosis; 35-simple congenital ptosis (SCP), 12-Marcus Gunn jaw winking phenomenon (MGJWP), and 30-blepharophimosis epicanthus inversus syndrome (BPES). Light microscopy, enzyme histochemistry, immunohistochemistry and electron microscopy were performed, and results were analyzed...
April 28, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29600170/is-marcus-gunn-jaw-winking-a-primitive-reflex-rat-neuroanatomy
#2
Hou-Cheng Liang, Jing-Dong Zhang, Pi-Fu Luo, Ying Qiao, An-Le Su, Ting Zhang, Hong-Na Zhu
AIM: To investigate a possible trigeminal proprioceptive-oculomotor neural pathway and explore possible synaptic connections between neurons in this pathway. Attempt to bring a new insight to mechanism of Marcus Gunn syndrome (MGS). METHODS: Anterograde and retrograde tract tracing was applied and combined with immunofluorescent stain in rats. After electrophysiological identifying mesencephalic trigeminal nucleus (Vme) neurons, intracellular injection of tracer was performed to trace axon trajectory...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29517602/reply-re-marcus-gunn-jaw-winking-syndrome-a-comprehensive-review-and-report-of-four-novel-cases
#3
COMMENT
Fiona Pearce, Alan McNab, Thomas Hardy
No abstract text is available yet for this article.
March 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29517601/re-marcus-gunn-jaw-winking-syndrome-a-comprehensive-review-and-report-of-four-novel-cases
#4
COMMENT
Varajini Joganathan
No abstract text is available yet for this article.
March 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29480247/ultrasound-biomicroscopy-image-patterns-in-normal-upper-eyelid-and-congenital-ptosis-in-the-indian-population
#5
Abhidnya Surve, Rachna Meel, Neelam Pushker, M S Bajaj
Purpose: To study the features of upper eyelid in healthy individual and different types of congenital ptosis in the Indian population using ultrasound biomicroscopy (UBM). Methods: This was a prospective observational study at a tertiary care center. Eyelid structure of healthy individuals with no eyelid abnormalities (n = 19); simple congenital ptosis (n = 33) cases; Marcus Gunn jaw-winking ptosis (MGJWP, n = 7) cases, and blepharophimosis-ptosis-epicanthus inversus syndrome (BPES, n = 20) cases were studied on a vertical UBM scan using 50-MHz probe...
March 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29107795/gustatory-lid-retraction-an-unusual-congenital-cranial-dysinnervation-disorder
#6
Arif O Khan, Zabila Khan
Congenital cranial dysinnervation disorders are developmental abnormalities of cranial nerves that often include abnormal synkinesis. Among the most common ophthalmic congenital cranial dysinnervation disorders are Duane retraction syndrome and the Marcus-Gunn jaw-winking phenomenon. This report documents gustatory lid retraction as an unusual congenital cranial dysinnervation.
December 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28040525/factors-associated-with-surgical-outcomes-in-congenital-ptosis-a-10-year-study-of-319-cases
#7
Yeen-Fey Ho, Shu-Ya Wu, Yueh-Ju Tsai
PURPOSE: To evaluate the 10-year results of surgery for congenital ptosis and identify factors associated with excellent outcomes and recurrence. DESIGN: Retrospective, interventional case series. METHODS: A retrospective analysis was conducted of 319 patients who underwent surgical correction at a tertiary medical center for congenital ptosis. The main outcome measures were postoperative surgical outcomes and recurrence rates. Excellent lid height was assessed as a marginal reflex distance (MRD) greater than 3 mm...
March 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27608283/marcus-gunn-jaw-winking-syndrome-a-comprehensive-review-and-report-of-four-novel-cases
#8
REVIEW
Fiona C Pearce, Alan A McNab, Thomas G Hardy
PURPOSE: To report 4 cases of Marcus Gunn jaw-winking synkinesis (MGJWS) in the absence of ptosis. METHODS: A retrospective review of patients with MGJWS and congenital ptosis was compiled from the public and private subspecialty adult and pediatric oculoplastic practices of the 2 senior authors (AAM, TGH). Clinical data collected on patients with MGJWS included visual acuity, stereopsis, ocular motility, side of jaw-wink, presence or absence of ptosis, levator function, clinical photographs and videos, and any management undertaken...
September 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/26620746/surgical-outcomes-in-cases-of-marcus-gunn-jaw-winking-phenomenon
#9
P R Sthapit, R Saiju
BACKGROUND: Markus-Gunn Jaw-winking Phenomenon (MGJW) is a congenital ptosis associated with synkinetic movement of upper lid on masticating movements of jaw. It results from aberrant connection between motor division of trigeminal nerve and oculomotor nerve. OBJECTIVE: To investigate the clinical characteristics of MGJW phenomenon and evaluate its surgical outcomes of unilateral levator excision and frontalis suspension. METHOD: It is a retrospective analysis of nine cases of MGJW phenomenon seen from 2007 to 2013 AD...
January 2015: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/26190014/a-rare-case-of-congenital-fibrosis-of-extraocular-muscle-type-1a-due-to-kif21a-mutation-with-marcus-gunn-jaw-winking-phenomenon
#10
Ayşe Kaçar Bayram, Hüseyin Per, Jennifer Quon, Mehmet Canpolat, Ege Ülgen, Hakkı Doğan, Hakan Gumus, Sefer Kumandas, Nurettin Bayram, Kaya Bilguvar, Ahmet Okay Çağlayan
BACKGROUND: Congenital fibrosis of the extraocular muscles (CFEOM1) is classically a congenital, non-progressive, restrictive strabismus syndrome characterized by bilateral ptosis and ophthalmoplegia with an infraducted position of the globes. This autosomal dominant syndrome is caused by mutations in the KIF21A gene. METHODS AND RESULTS: In this report we describe a 5-year-old boy, and his mother, both of whom have a mutation in the KIF21A gene, who possesses typical features of CFEOM1 syndrome...
November 2015: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/25754805/bilateral-marcus-gunn-jaw-winking-syndrome
#11
Deepa Kannaditharayil, Howard Geyer, Henry Hasson, Steven Herskovitz
No abstract text is available yet for this article.
March 10, 2015: Neurology
https://www.readbyqxmd.com/read/23972321/ocular-manifestations-of-22q11-2-microduplication
#12
Jose A Cordovez, Jenina Capasso, Michelle D Lingao, Karthikeyan A Sadagopan, George L Spaeth, Barry N Wasserman, Alex V Levin
PURPOSE: To report a new ocular manifestation of the dup22q11 syndrome and explore involved genes that may offer insight to mechanisms of pathogenesis. DESIGN: Case series. PARTICIPANTS: Two male patients with this syndrome diagnosed with dup22q11.2. METHODS: Medical records were reviewed. Duplication was detected in the oligo-single nucleotide polymorphism chromosomal microarray and duplicated genes within the segment where determined by literature and database review...
January 2014: Ophthalmology
https://www.readbyqxmd.com/read/23284759/kinematic-and-diffusion-tensor-imaging-definition-of-familial-marcus-gunn-jaw-winking-synkinesis
#13
COMPARATIVE STUDY
Antonella Conte, Francesco Brancati, Francesco Garaci, Nicola Toschi, Matteo Bologna, Giovanni Fabbrini, Marika Falla, Bruno Dallapiccola, Patrizio Bollero, Roberto Floris, Alfredo Berardelli
BACKGROUND: Marcus Gunn jaw-winking synkinesis (MGJWS) is characterized by eyelid ptosis, which disappears during jaw movement. Familial MGJWS is an extremely rare condition. Some authors suggested that MGJWS is due to neural misdirection in the brainstem whereas others suggested that aberrant reinnervation or ephapse may be responsible for synkinetic activity. Pathogenesis of this condition is therefore still unclear. METHODOLOGY/PRINCIPAL FINDINGS: To investigate pathogenetic mechanism in familial MGJWS we performed neurophysiological (EMG, Blink Reflex, Recovery cycle of the R2 component of the blink reflex, Masseter inhibitory reflex, BAEPS and kinematic analysis) and neuroradiological (MRI, Diffusion Tensor Imaging) investigations in a member of a multigenerational family with autosomal dominant Marcus Gunn jaw-winking synkinesis (MGJWS)...
2012: PloS One
https://www.readbyqxmd.com/read/22553588/management-of-morderate-to-severe-marcus-gunn-syndrome-by-anastomosis-of-levator-and-frontal-muscles
#14
Nan Xiang, Wei-Kun Hu, Bin Li, Rong Liu
AIM: To study the effect of clinical management of moderate-to-severe Marcus-Gunn syndrome (MGS) by anastomosis of levator and frontal muscles. METHODS: The medical records of 13 patients with moderate-to-severe MGS who underwent surgeries in our institute between 2000 and 2007 were reviewed retrospectively. They underwent unilateral anastomosis of levator and frontal muscles under local anesthesia. RESULTS: Postoperative follow-up periods ranged from 6 to 36 months, with an average of 12 months...
2010: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/22162784/unraveling-a-masticatory-oculomotor-neural-pathway-in-rat-implications-for-a-pathophysiological-neural-circuit-in-human
#15
Jingdong Zhang, Houcheng Liang, Pifu Luo, Huangui Xiong
Anterograde tracers were injected into the mesencephalic trigeminal nucleus (Vme) in pons, labeled axons and terminals were observed in ipsilateral oculomotor (III) and trochlear (IV) nuclei, as well as in interstitial nucleus of Cajar and Darkschewitsch nucleus (INC/DN), the well-known premotor nuclei to the III/IV, but not in abducens nucleus and central mesencephalic and paramedian pontine reticular formation (CMRF/PPRF). Retrogradely labeled INC/DN neurons do ensue from injection of tracers into the III...
2011: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/21175115/duane-retraction-syndrome-type-i-marcus-gunn-jaw-winking-and-crocodile-tears-in-the-same-eye
#16
Matthew Oltmanns, Nausheen Khuddus
Duane retraction syndrome type I, Marcus Gunn jaw-winking and crocodile tears are all syndromes of congenital aberrant innervation. The authors describe a 17-month-old boy with Duane retraction syndrome type I, Marcus Gunn Jaw-winking, and crocodile tears in the same eye and discuss the proposed mechanisms of these conditions.
December 22, 2010: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/21046852/marcus-gunn-jaw-winking-syndrome
#17
Yu-Hisang Su, Cheung-Ter Ong
No abstract text is available yet for this article.
March 2010: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/19541277/marcus-gunn-jaw-winking-with-trigemino-oculomotor-synkinesis-of-the-inferior-division-of-the-oculomotor-nerve
#18
Iris S Kassem, Sylvia R Kodsi
Synkinetic aberrant innervation syndromes can involve abnormal movements of multiple extraocular and eyelid muscles. The authors describe a case of eyelid elevation associated with simultaneous adduction and depression of the eye upon chewing, sucking on a bottle, or wide opening of the mouth since birth. This represents a unique case of congenital Marcus Gunn jaw winking with trigemino-oculomotor synkinesis involving the inferior branch of the oculomotor nerve. The most likely explanation for these abnormal movements is prenatal aberrant innervation of eyelid and extraocular muscles...
June 2009: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/18362569/treatment-of-the-jaw-winking-syndrome
#19
Dae Hwan Park, Won Seok Choi, Sean Hyuck Yoon
BACKGROUND: Marcus Gunn described for the first time a syndrome consisting of unilateral, congenital ptosis, and rapid exaggerated elevation of the ptotic eyelid during movement of the mandible to the contralateral side. METHODS: Here, clinical findings from the management of 20 patients with jaw-winking syndrome have been reviewed. Preoperative measurement of the ptotic degree and the levator function by Berke's method, and marginal limbal distance were all evaluated...
April 2008: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/18331673/-clinical-characteristics-of-moderate-and-severe-marcus-gunn-jaw-winking-synkinesis-and-its-surgical-treatment
#20
Ni Tian, Yong-xin Zheng, Shi-you Zhou, Jin-ling Liu, Dan-ping Huang, Hai-yan Zhao
OBJECTIVE: To investigate the clinical characteristics of moderate and severe Marcus-Gunn jaw winking synkinesis and it surgical management. METHODS: Thirty-three patients with Marcus-Gunn syndrome were enrolled from 1997 to 2003 in Zhongshan Ophthalmic Center. The clinical characteristics were analyzed based on the records. Unilateral levator excision and frontalis flap suspension were performed for the correction of ptosis and the results were analyzed. RESULTS: The follow-up period varied from 1 to 6 years...
December 2007: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
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