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https://www.readbyqxmd.com/read/28938361/columellar-reconstruction-following-nasal-cpap-injury
#1
Catherine S Chang, Jordan W Swanson, Anthony Wilson, David W Low, Scott P Bartlett
Nasal continuous positive airway pressure (nCPAP) is utilized increasingly to treat pulmonary immaturity in premature neonates. Nasal injury is common with nCPAP use, with full thickness tissue loss at the columella among the most devastating complications.Columellar necrosis often imparts a full thickness injury to the overlying columellar skin, the medial crura of the lower lateral nasal cartilages, as well as the anteromedial inner nasal mucosal lining, and potentially the anterior septal cartilage. Consequently, the columella can become scarred and shortened...
September 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28934067/transient-effects-of-gaze-stability-exercises-on-postural-stability-in-patients-with-posterior-circulation-stroke
#2
Tsubasa Mitsutake, Maiko Sakamoto, Kozo Ueta, Etsuo Horikawa
The authors sought to investigate if short-term gaze stability exercises have an effect on postural stability of dynamic standing during neck movement in patients with posterior circulation stroke (PCS). Patients in both PCS and non-PCS groups were assigned to either an intervention or control group. The intervention group performed the gaze stability exercises for 10 min while the control group was merely resting. The center of pressure velocity was calculated to evaluate the postural stability. After intervention, PCS and non-PCS showed a significant reduction in center of pressure velocity during dynamic standing with eyes closed condition, and the PCS group showed a significant improvement in eye-opened condition...
September 21, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28918002/effect-of-natural-sagittal-trunk-lean-on-standing-balance-in-untreated-scoliotic-girls
#3
Sébastien Leteneur, Émilie Simoneau-Buessinger, Franck Barbier, Charles-Hilaire Rivard, Paul Allard
BACKGROUND: Generally, scoliotic girls have a tendency to lean further back than a comparable group of non-scoliotic girls. To date, no study has addressed how standing balance in untreated scoliotic girls is affected by a natural backwardly or forwardly inclined trunk. METHODS: 27 able-bodied young girls and 27 young girls with a right thoracic curve were classified as leaning forward or backward according to the median of their trunk sagittal inclination. Participants stood upright barefoot...
September 6, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28912279/differences-in-morphologic-and-hemodynamic-characteristics-for-phases-based-intracranial-aneurysm-locations
#4
N Varble, H Rajabzadeh-Oghaz, J Wang, A Siddiqui, H Meng, A Mowla
BACKGROUND AND PURPOSE: Several recent prospective studies have found that unruptured intracranial aneurysms at various anatomic locations have different propensities for future rupture. This study aims to uncover the lack of understanding regarding rupture-prone characteristics, such as morphology and hemodynamic factors, associated with different intracranial aneurysm location. MATERIALS AND METHODS: We investigated the characteristics of 311 unruptured aneurysms at our center...
September 14, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28910658/postural-regulatory-strategies-during-quiet-sitting-are-affected-in-individuals-with-thoracic-spinal-cord-injury
#5
Matija Milosevic, Dany H Gagnon, Philippe Gourdou, Kimitaka Nakazawa
Thoracic spinal cord injury (SCI) can have significant negative consequences, which can affect the ability to maintain unsupported sitting. The objectives of this study were to compare postural control of individuals with high- and low-thoracic SCI to able-bodied people and evaluate the effects of upper-limb support on postural control during quiet sitting. Twenty-five individuals were recruited into: (a) high-thoracic SCI; (b) low-thoracic SCI; and (c) able-body subgroups. Participants were seated and asked to maintain a steady balance in the following postures: (1) both hands resting on thighs; (2) both arms crossed over the chest; and (3) both arms extended...
August 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28910656/test-retest-reliability-of-a-balance-testing-protocol-with-external-perturbations-in-young-healthy-adults
#6
Shawn M Robbins, Ryan M Caplan, Daniel I Aponte, Nancy St-Onge
External perturbations are utilized to challenge balance and mimic realistic balance threats in patient populations. The reliability of such protocols has not been established. The purpose was to examine test-retest reliability of balance testing with external perturbations. Healthy adults (n=34; mean age 23 years) underwent balance testing over two visits. Participants completed ten balance conditions in which the following parameters were combined: perturbation or non-perturbation, single or double leg, and eyes open or closed...
September 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28893391/the-effects-of-early-stages-of-aging-on-postural-sway-a-multiple-domain-balance-assessment-using-a-force-platform
#7
Adriana M Degani, Charles T Leonard, Alessander Danna-Dos-Santos
Technical advancements in instrumentation and analytical methods have improved the ability of assessing balance control. This study investigated the effects of early stages of aging on postural sway using traditional and contemporary postural indices from different domains. Eleven healthy young adults and fourteen healthy non-faller older adults performed two postural tasks: (a) functional limits of stability and (b) unperturbed bipedal stance for 120s. Postural indices from spatial, temporal, frequency, and structural domains were extracted from the body's center of pressure (COP) signals and its Rambling and Trembling components...
September 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28880935/post-fatigue-recovery-of-power-postural-control-and-physical-function-in-older-women
#8
Stephen A Foulis, Stephanie L Jones, Richard E van Emmerik, Jane A Kent
Low muscle power, particularly at high velocities, has been linked to poor physical function in older adults. Any loss in muscle power following fatiguing exercise or daily activities could impact physical function and postural control until power has fully recovered. To test the overall hypothesis that a common task such as walking can result in prolonged power loss and decreased physical function and balance, 17 healthy older (66-81 years) women completed a 32-min walking test (32MWT) designed to induce neuromuscular fatigue, followed by 60min of recovery (60R)...
2017: PloS One
https://www.readbyqxmd.com/read/28871844/management-of-bleeding-in-exclusive-endoscopic-ear-surgery-pilot-clinical-experience
#9
Lukas Anschuetz, Marco Bonali, Pierre Guarino, Filippo B Fabbri, Matteo Alicandri-Ciufelli, Domenico Villari, Marco Caversaccio, Livio Presutti
Objective Transcanal exclusive endoscopic ear surgery requires the management of the endoscope and the surgical instruments in the external auditory canal. Bleeding in this narrow space is one of the most challenging issues, especially for novice endoscopic ear surgeons. We aim to assess the severity and occurrence of bleeding and describe strategies to control the bleeding during endoscopic ear surgery. We hypothesize that bleeding is reasonably controllable in endoscopic ear surgery. Study Design Case series with chart review...
September 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28870628/the-role-of-anterior-cruciate-ligament-in-the-control-of-posture-possible-neural-contribution
#10
Mohammadreza Nematollahi, Mohsen Razeghi, Behdad Tahayori, David Koceja
The anterior cruciate ligament (ACL) is not only a mechanical structure for knee joint stability but is also a source of sensory information which could be used in the control of standing posture. It has been shown that the center of pressure (COP) time series during normal standing may be decomposed into two components which are hypothetically governed by different neural mechanisms, namely rambling and trembling. The aim of the present study was to investigate to what extent an injury to the ACL structure would affect these two control mechanisms...
September 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28870548/corticosteroid-therapy-and-severity-of-vasogenic-edema-in-posterior-reversible-encephalopathy-syndrome
#11
Neal S Parikh, Andrew D Schweitzer, Robert J Young, Ashley E Giambrone, John Lyo, Sasan Karimi, Anna Knobel, Ajay Gupta, Babak B Navi
BACKGROUND: Posterior reversible encephalopathy syndrome (PRES) is a variable cerebrovascular syndrome associated with hypertension and autoregulatory failure. Steroids have been reported to both precipitate and treat PRES. We sought to determine the prevalence of steroid therapy at the time of PRES and to assess the relationship between steroid therapy and extent of vasogenic edema. METHODS: We performed a retrospective review of radiology reports between 2008 and 2014 from two academic medical centers to identify cases of PRES...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28870146/effects-of-altering-heel-wedge-properties-on-gait-with-the-intrepid-dynamic-exoskeletal-orthosis
#12
Andrea J Ikeda, John R Fergason, Jason M Wilken
BACKGROUND: The Intrepid Dynamic Exoskeletal Orthosis is a custom-made dynamic response carbon fiber device. A heel wedge, which sits in the shoe, is an integral part of the orthosis-heel wedge-shoe system. Because the device restricts ankle movement, the system must compensate to simulate plantarflexion and allow smooth forward progression during gait. OBJECTIVES: To determine the influence of wedge height and durometer on the walking gait of individuals using the Intrepid Dynamic Exoskeletal Orthosis...
September 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28861592/increased-alertness-better-than-posture-prioritization-explains-dual-task-performance-in-prosthesis-users-and-controls-under-increasing-postural-and-cognitive-challenge
#13
Charla L Howard, Bonnie Perry, John W Chow, Chris Wallace, Dobrivoje S Stokic
Sensorimotor impairments after limb amputation impose a threat to stability. Commonly described strategies for maintaining stability are the posture first strategy (prioritization of balance) and posture second strategy (prioritization of concurrent tasks). The existence of these strategies was examined in 13 below-knee prosthesis users and 15 controls during dual-task standing under increasing postural and cognitive challenge by evaluating path length, 95% sway area, and anterior-posterior and medial-lateral amplitudes of the center of pressure...
August 31, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28822327/improvements-in-balance-control-in-individuals-with-pcs-detected-following-vestibular-training-a-case-study
#14
Alyssa Prangley, Mathew Aggerholm, Michael Cinelli
Concussed individuals have been found to experience balance deficits in the anterior-posterior (AP) direction as indicated by greater Center of Pressure (COP) displacement and velocity. One possible reason for this change in balance control could be due to damage to the lateral vestibulospinal tract which sends signals to control posterior muscles, specifically ankle extensors leading to compensatory torques about the ankle. The purpose of the study was to quantify balance assessments in individuals experiencing persistent post-concussion symptoms (PCS) to determine balance control changes following a vestibular training intervention...
August 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28820353/a-novel-determination-of-energy-expenditure-efficiency-during-a-balance-task-using-accelerometers-a-pilot-study
#15
Alejandro Caña-Pino, Maria Dolores Apolo-Arenas, Javier Moral-Blanco, Ernesto De la Cruz-Sánchez, Luis Espejo-Antúnez
The objectives of this study are to determine the displacement of the center of pressure (CoP) and its association with the spectral energy density of the acceleration required for the maintenance of postural balance in different standing positions in healthy participants using design observational and setting laboratorial studies. Participants were 30 healthy university students aged between 18 and 32 years old (mean [M] ± standard deviation [SD] = 21,57 ± 3,31 years). Triaxial accelerometer and a pressure platform were used in order to obtain energy spectral density and CoP sway measurements during four balance tasks...
August 18, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28802368/study-of-the-effects-of-hearing-on-static-and-dynamic-postural-function-in-children-using-cochlear-implants
#16
Malihah Mazaheryazdi, Abdollah Moossavi, Javad Sarrafzadah, Saeed Talebian, Shohreh Jalaie
OBJECTIVE: The present study aimed to evaluate the postural control perturbations by the center of pressure parameters in two main approaches, cochlear implant turned "on" and "off". METHODS: We included 25 children aged 8-10 years with unilateral cochlear implants and bilateral vestibular hypofunction deficit. To evaluate the postural function, each children was asked to stand on the force plate under 3 different conditions and cochlear implant turned "on" and "off": Condition (A) double stance from open eyes to closed eyes, Condition (B) double stance with open eyes engaging in the dual task and Condition (C) From double leg stance to one leg stance with open eyes for assessment of dynamic postural control...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28797595/effects-of-motion-segment-simulation-and-joint-positioning-on-spinal-loads-in-trunk-musculoskeletal-models
#17
F Ghezelbash, A H Eskandari, A Shirazi-Adl, N Arjmand, Z El-Ouaaid, A Plamondon
Musculoskeletal models represent spinal motion segments by spherical joints/beams with linear/nonlinear properties placed at various locations. We investigated the fidelity of these simplified models (i.e., spherical joints with/without rotational springs and beams considering nonlinear/linear properties) in predicting kinematics of the ligamentous spine in comparison with a detailed finite element (FE) model while considering various anterior-posterior joint placements. Using the simplified models with different joint offsets in a subject-specific musculoskeletal model, we computed local spinal forces during forward flexion and compared results with intradiscal pressure measurements...
July 25, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28767166/radiological-anatomy-of-the-perforators-of-the-gluteal-region-the-radiosome-based-anatomy
#18
Enrico Vigato, Eleonora De Antoni, Cesare Tiengo, Andrea Porzionato, Cinzia Tortorella, Maurizio Governa, Veronica Macchi, Raffaele De Caro
BACKGROUND: The superior (SGA) and the inferior gluteal artery (IGA) perforator flaps are widely used in pressure-sore repair and in breast reconstruction. The aim was to exhaustively depict the topographical anatomy of the whole system of perforators in the buttock. METHODS: Eighty lower-extremity computed tomographic angiography (CTA) of patients (20 males/20 females, mean age 61-years old, range 38-81) were considered. The source artery, location, type, and caliber of gluteal perforators were analyzed...
August 2, 2017: Microsurgery
https://www.readbyqxmd.com/read/28756364/chiari-i-malformation-with-underlying-pseudotumor-cerebri-poor-symptom-relief-following-posterior-decompression-surgery
#19
Ahmed Alnemari, Tarek R Mansour, Stephanie Gregory, William K Miller, Mark Buehler, Daniel Gaudin
INTRODUCTION: 
 Pseudotumor cerebri (PTC) patients exhibit clear clinical signs and symptoms of higher intracranial pressure (ICP) without ventricular enlargement or mass lesions. The clinical picture of patients with PTC can sometimes be similar to that of Chiari Malformation type I (CMI). There is some evidence that Chiari I malformation and PTC may coexist, which raises the question of whether PTC is an idiopathic disease or a complication of posterior decompression surgery-treatment of choice for Chiari I malformation...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28736560/nonparallel-progression-of-left-ventricular-structure-and-function-in-long-term-peritoneal-dialysis-patients
#20
Qiuhong Shi, Jing Zhu, Sheng Feng, Huaying Shen, Jianchang Chen, Kai Song
BACKGROUND/AIMS: Left ventricular hypertrophy and dysfunction are key cardiovascular risk factors of patients on peritoneal dialysis (PD). The purpose of this study was to investigate the dynamic changes of left ventricular (LV) structure and function in patients on long-term PD. METHODS: Patients who underwent PD catheter insertions from January 2010 to December 2012 in our PD center were enrolled into this study. Cardiac structure and function of those patients were determined by echocardiography (4 times) at 12-month intervals...
June 2017: Cardiorenal Medicine
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