keyword
MENU ▼
Read by QxMD icon Read
search

Levator muscle

keyword
https://www.readbyqxmd.com/read/28510774/combined-surgery-for-simultaneous-treatment-of-congenital-ptosis-and-coexisting-strabismus
#1
Feng Zhou, Ming Ouyang, Dahui Ma, Guiqin Liu, Hongbo Cheng
PURPOSE: To evaluate the clinical outcomes of single-stage surgery for treatment of patients with congenital ptosis and coexisting strabismus. METHODS: A retrospective analysis was performed on 10 patients (17 eyes) with congenital ptosis and coexisting strabismus. Patients were treated with levator resection or frontalis suspension for ptosis and ocular muscle surgery for strabismus, performed as a single-stage procedure. Levator resection was performed in 9 patients (15 eyes) and frontalis muscle flap suspension was performed in 1 patient (2 eyes) with blepharophimosis...
May 15, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28509338/investigation-of-the-ischioanal-fossa-application-to-abscess-spread
#2
Jian-Fei Zhang, Mei-Ling Du, Hong-Jin Sui, Yong Yang, Huan-Yu Zhou, Chao Meng, Meijing Qu, Qian Zhang, Bin Du, Yuan-Shan Fu
The location of perianal abscesses and the course of the fistula follow certain patterns, especially in the relationship between external and internal openings. However, it is still not clear how the contents of the ischioanal fossa, especially the fibrous network of fat tissue, affect the route for such diseases. Ten male adult cadavers were selected for the study. Seven horizontal transverse section planes from 1cm above the pubic symphysis to the inferior border of the lesser trochanter of the femur were recorded after P45 sheet plastination...
May 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28508263/new-insights-into-the-anatomy-of-the-midface-musculature-and-its-implications-on-the-nasolabial-fold
#3
Chelsea C Snider, Ashley N Amalfi, Lauren E Hutchinson, Nicole Z Sommer
BACKGROUND: The prominent nasolabial fold is a distinct feature of the aging midface. As minimally invasive procedures have become mainstream, chemodenervation is a preferred method for treating dynamic facial rhytids. We therefore sought to identify relevant nasolabial fold and midfacial muscular anatomy to determine the ideal location of neuromodulation to improve the aesthetics of the midface and nasolabial fold without altering the upper lip and smile. METHODS: Twelve hemifacial cadaveric dissections were performed to identify midface muscle origin, insertion, width, vector of pull, and neighboring structures...
May 15, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28504114/a-shortened-tamoxifen-induction-scheme-to-induce-creer-recombinase-without-side-effects-on-the-male-mouse-skeleton
#4
Ferran Jardí, Michaël R Laurent, Vanessa Dubois, Rougin Khalil, Ludo Deboel, Dieter Schollaert, Ludo Van Den Bosch, Brigitte Decallonne, Geert Carmeliet, Frank Claessens, Dirk Vanderschueren
The selective estrogen receptor modulator tamoxifen exerts estrogen agonistic or antagonistic actions on several tissues, including bone. The off-target effects of tamoxifen are one of the most widely recognized pitfalls of tamoxifen-inducible Cre recombinases (CreERs), potentially confounding the phenotypic findings. Still, the validation of tamoxifen induction schemes that minimize the side effects of the drug has not been addressed. Here, we compared the side effects on the skeleton and other androgen-responsive targets of a shortened tamoxifen regimen (2 doses of 190 mg/kg body weight by oral gavage) to a standard protocol (4 doses) and determined their efficiency in inducing CreER-mediated gene deletion...
May 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28479768/laparoscopic-sacrocolpopexy-using-barbed-sutures-for-mesh-fixation-and-peritoneal-closure-a-safe-option-to-reduce-operational-times
#5
Panagiotis Kallidonis, Abdulrahman Al-Aown, Marinos Vasilas, Iason Kyriazis, Vasilis Panagopoulos, Fotini Fligou, Anastasios Athanasopoulos, Bagheri Fariborz, Evangelos Liatsikos, Mehmet Özsoy
INTRODUCTION: Laparoscopic sacrocolpopexy (LSC) has established itself as a safe method for the management of pelvic organ prolapse (POP). Laparoscopic suturing is a time-consuming intraoperative task during LSC. Self-retaining barbed sutures (SBSs) are known to reduce the operative time in laparoscopic cases. The current study aimed to evaluate the efficacy and safety of SBS during the performance of LSC. MATERIALS AND METHODS: Twenty female patients with symptomatic POP were treated with LSC by an expert surgeon...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28463058/generating-facial-expressions-of-disgust-activates-neurons-in-the-thoracic-spinal-cord-a-spinal-fmri-study
#6
Stephen D Smith, Jennifer Kornelsen, Theresa A McIver
Facial expressions of disgust, which involve movement of the levator labii muscles on the nose, allow an organism to restrict the intake of potentially aversive stimuli by constricting the air cavities in the nostrils and reducing the speed of air intake. In the current research, we used fMRI of the thoracic spinal cord to measure neural activity related to (1) the contraction of the intercostal muscles that modulate the velocity of air intake and (2) the sensory feedback associated with this contraction. Thirteen participants completed two spinal fMRI runs in which the thoracic segments of the spinal cord were measured...
May 8, 2017: Social Neuroscience
https://www.readbyqxmd.com/read/28455942/the-evaluation-of-pelvic-floor-muscle-strength-in-women-with-pelvic-floor-dysfunction-a-reliability-and-correlation-study
#7
Beatriz Navarro Brazález, María Torres Lacomba, Pedro de la Villa, Beatriz Sánchez Sánchez, Virginia Prieto Gómez, Ángel Asúnsolo Del Barco, Linda McLean
AIMS: The purposes of this study were: (i) to evaluate the reliability of vaginal palpation, vaginal manometry, vaginal dynamometry; and surface (transperineal) electromyography (sEMG), when evaluating pelvic floor muscle (PFM) strength and/or activation; and (ii) to determine the associations among PFM strength measured using these assessments. METHODS: One hundred and fifty women with pelvic floor disorders participated on one occasion, and 20 women returned for the same investigations by two different raters on 3 different days...
April 28, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28453595/-eyelid-retraction-of-neurologic-origin-report-of-three-cases
#8
Luis Cartier R, Jorge Guzmán S, Renzo Pasquali F
Eyelid retraction, has received limited attention and it has passively been interpreted as the result of an overactive levator palpebrae superioris muscle secondary to midbrain injury. However, eyelid retractions can occur in other neurological diseases, not directly related with the midbrain. We report three patients who developed eyelid retraction. One patient had a bilateral eyelid retraction, related with Creutzfeldt-Jakob disease (CJD). Another patient had a unilateral right eyelid retraction associated with a thalamic-mesencephalic infarct...
February 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28450789/body-after-baby-a-pilot-survey-of-genital-body-image-and-sexual-esteem-following-vaginal-birth
#9
Ruth Zielinski, Lisa Kane Low, Abigail R Smith, Janis M Miller
OBJECTIVE: The aim of this study was to determine acceptability of the Vaginal Changes Sexual and Body Esteem (VSBE) scale for women post childbirth and explore the association between childbirth events and sexual/body esteem. DESIGN: This is a cross-sectional study within the Evaluating Maternal Recovery from Labor and Delivery study. SETTING: This study was conducted in a community setting. POPULATION: The study was conducted in women post first vaginal birth with birth events that posed risk factors for levator ani muscle tears...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28447150/anatomical-status-of-the-human-palatopharyngeal-sphincter-and-its-functional-implications
#10
Kaori Sumida, Yoshinori Ando, Shinichiro Seki, Kikuji Yamashita, Akira Fujimura, Otto Baba, Seiichiro Kitamura
PURPOSE: The transition muscle between the palatopharyngeus (PP) and the superior constrictor of the pharynx (SCP) encircles the pharyngeal isthmus from behind and is designated as the palatopharyngeal sphincter (PPS). The PPS is inferred to play important roles for velopharyngeal closure, but its existence remains controversial and its roles have been regarded as being played by the SCP. The present study aimed to clarify the anatomical status and functional implications of the PPS. MATERIALS AND METHODS: Macroscopic and microscopic examinations were performed on 39 and 4 cadavers, respectively...
April 26, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28445884/synergistic-action-of-presynaptic-muscarinic-acetylcholine-receptors-and-adenosine-receptors-in-developmental-axonal-competition-at-the-neuromuscular-junction
#11
Laura Nadal, Neus Garcia, Erica Hurtado, Anna Simó, Marta Tomàs, Maria Angel Lanuza, Victor Cilleros, Josep Maria Tomàs
The development of the nervous system involves the initial overproduction of synapses, which promotes connectivity. Hebbian competition between axons with different activities leads to the loss of roughly half of the overproduced elements and this refines connectivity. We used quantitative immunohistochemistry to investigate, in the postnatal day 7 (P7) to P9 neuromuscular junctions, the involvement of muscarinic receptors (muscarinic acetylcholine autoreceptors and the M1, M2, and M4 subtypes) and adenosine receptors (A1 and A2A subtypes) in the control of axonal elimination after the mouse levator auris longus muscle had been exposed to selective antagonists in vivo...
April 27, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28431598/apraclonidine-in-the-treatment-of-ptosis
#12
Subhashie Wijemanne, Dhanya Vijayakumar, Joseph Jankovic
Transient ptosis is a known complication of botulinum toxin (BoNT) injection due to inadvertent migration of toxin into the levator palpebrae superioris muscle. Currently there is no treatment available for BoNT induced ptosis. Apraclonidine hydrochloride is a topical ophthalmic solution with selective alpha-2 and weak alpha-1 receptor agonist activity that has the ability to elevate the eye lid. Apraclonidine has been used as a diagnostic test in Horner's syndrome. We evaluated the effects apraclonidine in a cohort of BoNT induced ptosis and a patient with Horner syndrome...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28412846/changes-in-levator-hiatus-dimensions-during-pregnancy-and-after-delivery-in-nulliparas-a-prospective-cohort-study-using-3d-transperineal-ultrasound
#13
A Sanozidis, T Mikos, E Assimakopoulos, A Athanasiadis, T Tantanassis, B C Tarlatzis, V Papameletiou
PURPOSE: The purpose of this study was to investigate the changes that occur in the levator ani muscle (1) during pregnancy and (2) after labor depending on the mode of delivery in a cohort of nulliparas. MATERIALS AND METHODS: A prospective cohort longitudinal study, consisting of 84 primiparas who were examined and recruited in an antenatal clinic was conducted. All participants were submitted to a real-time three-dimensional (3D) ultrasonographic evaluation of the levator ani at (1) 12, (2) 22, and (3) 32 weeks of pregnancy (4) and 4-6 months postdelivery...
May 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28412085/in%C3%A2-vivo-evidence-of-significant-levator-ani-muscle-stretch-on%C3%A2-mr-images-of-a-live-childbirth
#14
Nikhil Sindhwani, Christian Bamberg, Nele Famaey, Geertje Callewaert, Joachim W Dudenhausen, Ulf Teichgräber, Jan Deprest
OBJECTIVE: Vaginal childbirth is believed to be a significant risk factor for the development of pelvic floor dysfunction later in life. Previous studies have explored the use of medical imaging and simulations of childbirth to determine the stretch in the levator ani muscle. A report in 2012 has recorded magnetic resonance images of a live childbirth of a 24 year old woman giving birth vaginally for the second time, using a 1.0 Tesla open, high-field scanner. Our objective was to determine the stretch ratios in the levator muscle using these magnetic resonance images of live childbirth...
April 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28397366/changes-in-the-global-strain-of-the-puborectalis-muscle-during-pregnancy-and-postpartum
#15
Anique T M Grob, Niklas Hitschrich, Maria K van de Waarsenburg, Mariëlla I J Withagen, Karlijn J Schweitzer, Carl H van der Vaart
INTRODUCTION: One of the functional parameters that can be assessed by ultrasound is muscle strain. Strain represents the amount of deformation from its original shape when forces are applied to the tissue under study. We set out to assess the global strain of the puborectalis muscle during and after pregnancy. OBJECTIVE: To evaluate the effect of pregnancy and child-delivery on global strain of the puborectalis muscle. METHOD: This is a secondary analysis of a prospective observational study on the association between stress urinary incontinence and levator muscle avulsion after delivery...
April 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28384736/examining-a-new-method-to-studying-velopharyngeal-structures-in-a-child-with-22q11-2-deletion-syndrome
#16
Lakshmi Kollara, Graham Schenck, Michael Jaskolka, Jamie L Perry
Purpose: To date, no studies have imaged the velopharynx in children with 22q11.2 deletion syndrome (22q11.2 DS) without the use of sedation. Dysmorphology in velopharyngeal structures has been shown to have significant negative implications on speech among these individuals. This single case study was designed to assess the feasibility of a child-friendly magnetic resonance imaging (MRI) scanning protocol in this clinically challenging population and to determine the utility of this MRI protocol for future work in this area...
April 6, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28383178/endoscopic-endonasal-nasopharyngectomy-tensor-veli-palatine-muscle-as-a-landmark-for-the-parapharyngeal-internal-carotid-artery
#17
Chiung-Lin Liu, Ning-I Hsu, Ping-Hung Shen
BACKGROUND: Endoscopic endonasal nasopharyngectomy(EEN) can be a promising option for select patients with recurrent nasopharyngeal carcinoma, but serious complications can occur in terms of parapharyngeal internal carotid artery (PPICA) injury. Several landmarks have been proposed for locating the PPICA. In this study, we investigated the spatial relationship between the tensor veli palatini (TVP) muscle and the PPICA in a cadaveric model. METHODS: Seven fresh cadaver heads were available for anatomic study...
April 6, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28380105/accidental-lacrimal-gland-removal-during-resection-of-the-levator-palpebrae-superioris-muscle
#18
Patricia Akaishi, Alicia Galindo-Ferreiro, Sahar M Elkhamary, Zakeya Al-Sadah, Alberto Galvez-Ruiz, A Augusto Cruz
Accidental removal of the lacrimal gland is a rare complication of ptosis surgery. We report two children who underwent large unilateral levator palpebrae superioris resections (LPSr). After surgery, both patients developed dry eye. Post-operatively, the parents of both patients noticed no tears in the affected eye when their child cried. Computed tomography proved the absence of the lacrimal gland in the operated eye in both patients. Oculoplastic surgeons should pay close attention to the anatomy of the levator muscle and its proximity to surrounding tissues in order to avoid lesions on important orbital structures, including the lacrimal gland, and to avoid the development of long-term dry eye...
January 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28378186/a-modified-levator-resection-technique-involving-retention-of-the-levator-palpebrae-superioris-muscle-suspension-system-for-treatment-of-congenital-ptosis
#19
Lan Zuo, Xing X Wang, Xin Y Huang, Jia L Zhang, Yuan Y Du
BACKGROUND: The classical levator resection (LR) technique for correcting ptosis involves separating the levator palpebrae superioris muscle (LPS) completely, which will inevitably collapse the muscle. The modified surgical method involving retention of the LPS suspensory system can allow for more contractility of the levator muscle and thus maximize protection of the eyelid structure. METHODS: Ninety patients (132 eyelids) with different degrees of ptosis were enrolled...
April 4, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28366755/postoperative-ptosis-and-diplopia-induced-by-the-intraoperative-application-of-bone-wax
#20
Yoshinori Maki, Ryota Ishibashi, Daisuke Yamada, Takumi Morita, Masaki Chin, Sen Yamagata
BACKGROUND: Bone wax is a hemostatic agent well used by neurosurgeons to prevent bleeding from bone. However, several complications involving bone wax have been reported, such as ptosis, infection, paraplegia, osteohypertrophy, edema, pain, granuloma formation, allergic reaction and thrombosis. CASE DESCRIPTION: A 47-year-old female patient presented to our neurosurgery department complaining of headache and vomiting. Subarachnoid hemorrhage from a ruptured aneurysm was detected on computed tomography (CT), and we performed emergent clipping of the ruptured aneurysm...
March 30, 2017: World Neurosurgery
keyword
keyword
118995
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"