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Andan Qian, Xin Wang, Huiru Liu, Jiejie Tao, Jiejie Zhou, Qiong Ye, Jiance Li, Chuang Yang, Jingliang Cheng, Ke Zhao, Meihao Wang
Attention deficit hyperactivity disorder (ADHD) is a common childhood neuropsychiatric disorder that has been linked to the dopaminergic system. This study aimed to investigate the effects of regulation of the dopamine D4 receptor (DRD4) on functional brain activity during the resting state in ADHD children using the methods of regional homogeneity (ReHo) and functional connectivity (FC). Resting-state functional magnetic resonance imaging data were analyzed in 49 children with ADHD. All participants were classified as either carriers of the DRD4 4-repeat/4-repeat (4R/4R) allele (n = 30) or the DRD4 2-repeat (2R) allele (n = 19)...
March 21, 2018: Neuroscience Bulletin
Amun Sachdev, Nigel Timothy O'Connor, Suresh Reddy Sagili
Orbital involvement in chronic lymphocytic leukemia (CLL) is rare with very few published cases. We describe a case of unilateral isolated extraocular muscle enlargement in a patient with CLL. An incisional biopsy was performed from the left medial rectus muscle and histology revealed a lymphocytic infiltrate suggestive of CLL. Complete resolution of signs and symptoms was subsequently achieved with chemotherapy. We would suggest that in patients presenting with atypical clinical features, it is important to consider nonthyroid-related causes of extraocular muscle enlargement and a muscle biopsy should be considered to exclude neoplastic causes...
January 2018: Oman Journal of Ophthalmology
Soumya Nambiar, Kavitha Kalaivani Natarajan
We discuss here an interesting case of strabismus, due to bilateral absent medial rectus muscle associated with brain anomalies, and its surgical management.
January 2018: Oman Journal of Ophthalmology
Eric Wallace, Zachary Stewart, David Theriot, William Shaffer, Shane Guillory, Michael Hanemann, Raman Danrad, Bradley Spieler
Background: Plasmacytomas are monoclonal proliferations of plasma cells that typically affect the intramedullary axial skeleton. Imaging findings of an extramedullary plasmacytoma on radiograph and computed tomography can be nonspecific and can resemble other entities such as lymphoma, metastases, chondrosarcomas, or giant cell tumors. Case Report: A 60-year-old female with a medical history of partial complex seizures, hypertension, diabetes, glaucoma, and hyperlipidemia presented with complaints of superficial abdominal pain associated with erythema and swelling for 3 weeks...
2018: Ochsner Journal
John L Falcone, L Atalee Cummings
No abstract text is available yet for this article.
March 1, 2018: American Surgeon
Michael Oeverhaus, Margarethe Fischer, Herbert Hirche, Anke Schlüter, Joachim Esser, Anja K Eckstein
BACKGROUND/AIMS: We performed a retrospective analysis to examine clinical results, establish a dose-effect coefficient and analyze the long-term efficacy of tendon elongation with bovine pericardium (Tutopatch®) for surgical correction of severe esotropia, occurring after three-wall orbital decompression for dysthyroid optic neuropathy in patients with Graves' orbitopathy (GO). METHODS: Tendon elongation of the medial rectus muscle (MR) was performed in our institution using an interponate of bovine pericardium in 60 patients (27 underwent unilateral and 33 bilateral surgery)...
March 20, 2018: Strabismus
Parthena Soupiadou, Francisco Branoner, Hans Straka
Vestibulo-ocular reflexes (VOR) are mediated by three-neuronal brainstem pathways that transform semicircular canal and otolith sensory signals into motor commands for the contraction of spatially specific sets of eye muscles. The vestibular excitation and inhibition of extraocular motoneurons underlying this reflex is reciprocally organized and allows coordinated activation of particular eye muscles and concurrent relaxation of their antagonistic counterparts. Here, we demonstrate in isolated preparations of Xenopus laevis tadpoles that the discharge modulation of superior oblique motoneurons during cyclic head motion derives from an alternating excitation and inhibition...
March 19, 2018: Journal of Neurology
J Soulat, B Picard, S Léger, V Monteils
In this study, four prediction models were developed by logistic regression using individual data from 96 heifers. Carcass and sensory rectus abdominis quality clusters were identified then predicted using the rearing factors data. The obtained models from rearing factors applied during the fattening period were compared to those characterising the heifers' whole life. The highest prediction power of carcass and meat quality clusters were obtained from the models considering the whole life, with success rates of 62...
March 10, 2018: Meat Science
Louis F Dell'Osso, Richard W Hertle, Jonathan B Jacobs
PURPOSE: To describe the effects of extraocular muscle extirpation performed after previous eye muscle surgery in a 20-year-old woman with infantile nystagmus syndrome (INS) for whom we have 19 years of follow-up data. METHODS: Clinical examinations were performed. Eye movement data analysis was carried out using the eXpanded Nystagmus Acuity Function (NAFX) and longest foveation domain (LFD). RESULTS: The patient re-presented to the authors at age 20, 2 years after bilateral anterior myectomy of the horizontal rectus muscles, bilateral anterior nasal transposition of the inferior oblique muscle, and bilateral superior oblique recessions...
March 13, 2018: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Shailja Tibrewal, Ramesh Kekunnaya
PURPOSE: The aim of the study was to determine the risk of anterior segment ischemia (ASI) after simultaneous three rectus muscle surgery. METHODS: A retrospective cohort study was conducted. All patients who underwent simultaneous three rectus muscle surgery from January 2003 to December 2014 were included. Medical records were reviewed for signs of acute ASI in the postoperative period or presence of any late sequelae. Those patients who had pre-existing corneal pathology obscuring visualisation of anterior chamber and iris were excluded...
March 16, 2018: Strabismus
Won-Gyu Yoo
[Purpose] The purpose of this study is to compare the rectus abdominis and multifidus muscle activity and rectus abdominis/multifidus ratio ratios during various leg-raising exercises. [Subject and Methods] This study was conducted on 10 healthy males. Leg-raising exercises were performed in four different positions. [Results] The activity of the rectus abdominis was greatest for raising the legs while flexing the trunk. The rectus abdominis/multifidus ratio value of co-contraction of the rectus abdominis and multifidus was lowest for raising the legs while flexing the knees...
February 2018: Journal of Physical Therapy Science
Seung Yeol Lee, Soon-Sun Kwon, Chin Youb Chung, Kyoung Min Lee, Ki Hyuk Sung, Sangwoo Kim, Moon Seok Park
BACKGROUND: Simultaneous motion of the knee and ankle joints is required for many activities including gait. We aimed to evaluate the influence of surgery involving tendons around the knee on ankle motion during gait in the sagittal plane in cerebral palsy patients. METHODS: We included data from 55 limbs in 34 patients with spastic cerebral palsy. Patients were followed up after undergoing only distal hamstring lengthening with or without additional rectus femoris transfer...
March 15, 2018: BMC Musculoskeletal Disorders
Ramón Medel Jiménez, Juan C Sánchez España, José Visa Nassarre, Eva Ayala Barroso, Alfredo Pueyo Ferrer, Alejandra Tapia Bahamondes, Luz M Vasquez
PURPOSE: To describe our experience and outcomes managing complete third cranial nerve palsy. METHODS: This was a retrospective analysis of the clinical records of 7 consecutive patients treated at our centre for unilateral third nerve palsy over the period 2010-2016. We describe our surgical approach using a frontalis muscle flap to correct the eyelid ptosis associated with medial fixation of the rectus muscle tendon to the orbit to correct the horizontal deviation...
March 15, 2018: Orbit
Raed M Almannie, Waleed H Alkhamis
Rectus sheath hematoma is a collection of blood in the sheath of rectus abdominis muscle due to an injury of one of the epigastric vessels or the muscle itself. It is a rare condition that could be caused by the use of anticoagulant injections. We report a 60-year-old lady who received enoxaparin injection on the lower abdomen. Subsequently, she developed bladder perforation secondary to rectus sheath hematoma and was diagnosed using CT angiography scan. Exploratory laparotomy was performed and bleeding was controlled with bladder wall repair...
March 2018: Saudi Medical Journal
Thomas Coquet, Michel Lefranc, Louis Chenin, Pascal Foulon, Éric Havet, Johann Peltier
In this anatomy report, we describe the first case of abducens nerve duplication limited to the sphenopetroclival venous gulf and the cavernous sinus. The objective point of division of the two duplicated roots was localized at the gulfar face of the dural porus, just distal to the unique cisternal trunk of the abducens nerve, as it pierced the petroclival dural mater. In the gulfar segment, both roots traveled through a variant of Dorello's canal called the "petrosphenoidal canal" and remained separated through the posterior half of the cavernous sinus...
March 15, 2018: Surgical and Radiologic Anatomy: SRA
Mohammad Nauzef Mahmood, Laura H C Peeters, Micha Paalman, Gijsbertus J Verkerke, Idsart Kingma, Jaap H van Dieën
BACKGROUND: Patients with Duchenne muscular dystrophy gradually lose the ability to use different muscles of their body. Consequently, they lose the ability to stabilize their trunk against gravity. This hinders them to effectively perform different daily activities. In this paper, we describe the design, realization and evaluation of a trunk orthosis for these patients that should allow them to move their trunk and maintain stability. METHOD: This study aimed to primarily assess the effectiveness of the trunk support system in terms of unloading of trunk muscles, so only healthy participants were recruited for this phase of the study...
March 14, 2018: Journal of Neuroengineering and Rehabilitation
Jianhua Yan
PURPOSE: Fibrous histiocytomas (FHs) involving the orbit are uncommon. To our knowledge, here the authors report the first patient with an orbital low-grade malignant FH originating from the medial rectus muscle. METHODS: A clinical report relating clinical features as well as imaging and histopathologic findings is presented. RESULTS: A 26-year-old female presented with a left eye proptosis that had been present for 4 months. A small left exotropia was observed and ocular motility evaluation revealed a -3 adduction and -1 abduction of the left eye...
March 13, 2018: Journal of Craniofacial Surgery
C Deng, W D Ni, S Q Guo, G Luo, W Shui, B Qiao
Objective: To discuss the clinical outcomes of treating delayed acetabular fractures by combined anterior and posterior approach. Methods: A retrospective analysis was conducted of 31 delayed acetabular fractures from February 2012 to February 2017 in the First Affiliated Hospital of Chongqing Medical University, including 18 males and 13 females with age of 48.5 years(23 to 67 years) .The injury to the operation time was 35.9 days(22 to 183 days). Of these 31 cases, there were 6 cases of transverse and posterior wall fracture, 8 cases with anterior column+ posterior half transverse fracture, 12 cases with double column fracture and 5 cases of "T" type fracture according to Letournel-Judet classification...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Marco A Minetto, Alberto Botter, Giulia Gamerro, Ilaria Varvello, Giuseppe Massazza, Rosa G Bellomo, Nicola A Maffiuletti, Raoul Saggini
BACKGROUND: The "contralateral effect" phenomenon refers to the strength gain in the opposite, untrained homonymous muscle following unilateral training. Previous studies showed that neuromuscular electrical stimulation (NMES) of the right quadriceps facilitated maximal voluntary strength and efferent neural drive of the left knee extensors, while no previous study investigated the contralateral effect elicited by focal muscle vibration. AIM: To investigate whether quadriceps NMES and focal vibration, when applied unilaterally, have the same potential to enhance the contralateral muscle strength and the associated neural drive...
March 12, 2018: European Journal of Physical and Rehabilitation Medicine
Hopker Luisa Moreira, Neves Juliana de Carvalho, Nascimento Daiane Jaqueline, Campos Eliene Dutra, Mendonça Tomas Scalamandre, Zanoteli Edmar, Allemann Norma
To determine the changes in the cross-sectional area (CSA) of myofibers and their subtype distribution based on the myosin isoform expression after bupivacaine (BUP) injection in the EOM of rabbits and help the understanding of strabismus correction after BUP injection in the clinical practice. A total of 32 rabbits received 0.3 mL of 1.5% BUP in the superior rectus muscle (SR) of the right eye (OD) and were sacrificed at days 7, 28, 60, and 92. Additional eight untouched rabbits were included as controls...
March 9, 2018: Experimental Eye Research
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