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https://www.readbyqxmd.com/read/28646592/influence-of-inspiratory-resistive-loading-on-expiratory-muscle-fatigue-in-healthy-humans
#1
Carli M Peters, Joseph F Welch, Paolo B Dominelli, Yannick Molgat-Seon, Lee M Romer, Donald C McKenzie, A William Sheel
Expiratory resistive loading elicits inspiratory as well as expiratory muscle fatigue, suggesting parallel co-activation of the inspiratory muscles during expiration. It is unknown whether the expiratory muscles are similarly co-activated to the point of fatigue during inspiratory resistive loading (IRL). The purpose of this study was to determine whether IRL elicits expiratory as well as inspiratory muscle fatigue. Healthy male subjects (n = 9) underwent isocapnic IRL (60% maximal inspiratory pressure, 15 breaths∙min(-1) , 0...
June 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28643890/anatomical-evaluation-of-the-thoracolumbar-nerves-related-to-the-transversus-abdominis-plane-block-technique-in-the-dog
#2
F E Castañeda-Herrera, E F Buriticá-Gaviria, D F Echeverry-Bonilla
Transversus abdominis plane (TAP) is a fascial plane containing the thoracolumbar nerve branches that innervate the abdominal wall. Limited information is available on the anatomical organization of these nerve branches in the dog, which is of great importance for the success of the TAP block anaesthetic technique. The aim of this study was to describe the origin and conformation of thoracolumbar nerves running through the TAP in 20 hemi-abdominal walls of 10 adult mongrel dog cadavers with an average body weight of 12...
June 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28639723/changes-in-the-inspiratory-pattern-contribute-to-modulate-the-sympathetic-activity-in-sino-aortic-denervated-rats
#3
Mateus R Amorim, Leni G H Bonagamba, George M P R Souza, Davi J A Moraes, Benedito H Machado
The activity of pre-sympathetic neurons is under respiratory modulation and changes in the central respiratory network may impact on the baseline sympathetic activity and mean arterial pressure (MAP). It is well known that after baroreceptor afferents removal (sino-aortic denervation, SAD), rats present an unexpected normal levels of MAP. We hypothesized that changes in the respiratory pattern and in the respiratory modulation of the sympathetic activity contribute to keep the sympathetic outflow in a normal range of variation in absence of arterial baroreceptors in rats...
June 22, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28638296/ultrasound-guided-percutaneous-cervical-and-upper-thoracic-sympathetic-chain-neuromodulation-for-upper-extremity-complex-regional-pain-syndrome
#4
Samer Narouze, Dmitri Souzdalnitski
BACKGROUND: Complex regional pain syndrome (CRPS) comprises a group of conditions characterized by severe, debilitating pain that is disproportionate to any inciting event and is not distributed in a specific nerve distribution or dermatome. CASE REPORT: A 42-year-old female with a 2-year history of right upper extremity CRPS type I refractory to conventional management underwent an ultrasound-guided and fluoroscopy confirmed percutaneous peripheral nerve stimulation trial with a lead extending from the C6 to the T3 level to cover the cervical and upper thoracic sympathetic chain...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28637939/surgery-of-thymic-tumor-with-persistent-left-superior-vena-cava
#5
Masahiro Yanagiya, Jun Matsumoto, Hirotsugu Hashimoto, Yoshio Suzuki, Hajime Horiuchi
Because a persistent left superior vena cava (PLSVC) is a rare congenital malformation in the thoracic venous system, surgery of the thymus in such patients has rarely been reported. We herein present a case involving a 68-year-old woman who was treated for a thymic tumor adhering to a PLSVC. She underwent complete resection of the thymic tumor through median sternotomy with left-sided video-assisted thoracic surgery. Although the tumor was close to the left phrenic nerve, this nerve was safely preserved. The pathological diagnosis was mucosa-associated lymphoid tissue (MALT) lymphoma of the thymus...
June 22, 2017: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28624495/comparison-of-ultrasound-and-electrostimulation-guided-nerve-blocks-of-brachial-plexus-in-dogs
#6
Minori Akasaka, Miki Shimizu
OBJECTIVE: To compare the effectiveness of ultrasound- and electrostimulation-guided nerve blocks of the brachial plexus and to determine whether ultrasound guidance is feasible in conscious dogs. STUDY DESIGN: Blinded, crossover, experimental study. ANIMALS: Six clinically healthy adult Beagle dogs. METHODS: The nerves of the brachial plexus of the right thoracic limb were blocked under ultrasound guidance (UNB) in conscious dogs and under electrostimulation guidance (ENB) in anesthetized dogs with bupivacaine (0...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28624121/leptin-like-immunoreactivity-in-the-central-nervous-system-digestive-organs-and-gonads-of-the-giant-freshwater-prawn-macrobrachium-rosenbergii
#7
Jaruwan Poljaroen, Yotsawan Tinikul, Ruchanok Tinikul, Panat Anurucpreeda, Prasert Sobhon
Leptin, a highly conserved adipocyte-derived hormone, plays important roles in a variety of physiological processes, including the control of fat storage and metabolic status which are linked to food intake, energy homeostasis, and reproduction in all vertebrates. In the present study, we hypothesize that leptin is also present in various organs of the fresh water prawns, Macrobrachium rosenbergii. The existence and distribution of a leptin-like peptide in prawn tissues were verified by using Western blotting (WB) and immunohistochemical detection (ID) using primary antibody against human leptin...
June 14, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28621630/evaluation-of-surgical-treatment-for-neuropathic-pain-from-neuroma-in-patients-with-injured-peripheral-nerves
#8
Valérie Decrouy-Duruz, Thierry Christen, Wassim Raffoul
OBJECTIVE Chronic neuropathic pain after peripheral nerve injury is a major clinical problem. Its management is difficult, and therapeutic approaches vary and include oral medication, neurostimulation, and surgery. The aim of this study was to assess the adequacy of surgical nerve revision in a large series of patients with long-term follow-up. METHODS The authors reviewed the charts of 231 patients (335 nerve injuries) who experienced neuropathic pain after peripheral nerve injury and underwent surgery for nerve revision at the authors' institution between 1997 and 2012...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28621182/-non-intubated-uniportal-video-assisted-thoracic-surgery-vats-lobectomy-as-a-new-procedure-in-our-department
#9
József Furák, Zsolt Szabó, Theodor Horváth, Tibor Géczi, Balázs Pécsy, Tibor Németh, Aurél Ottlakán, Zsolt Molnár, György Lázár
AIM: Due to the emerging experience in VATS (video assisted thoracic surgery) lobectomies, in some centers the so called "non-intubated" VATS lobectomies (NITS - non-intubated thoracic surgery) gained increased authority, during which endotracheal intubation and muscle relaxation of the patient is not carried out, thus surgery is being performed with the patient breathing spontaneously. The recent study deals with our initial experience gained during uniportal NITS VATS lobectomies. PATIENTS AND METHOD: Between 24...
June 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28619729/characterization-and-mechanisms-of-the-supragastric-belch-in-the-cat
#10
Ivan M Lang, Bidyut K Medda, Reza Shaker
A response, i.e., the supragastric belch (SGB), in which a belch occurs without gastric involvement has been characterized in humans. The aims of this study were to determine whether animals have an SGB and if so to determine its mechanisms. Studies were conducted in decerebrate cats (N=30) with EMG electrodes on hyoid, pharyngeal, esophageal, and diaphragm muscles. The effects of distending different regions of the esophagus in different manners using a balloon were quantified to determine the most appropriate stimulus for activating the cat SGB...
June 15, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28619300/clinical-effect-of-traditional-chinese-spinal-orthopedic-manipulation-in-treatment-of-functional-abdominal-pain-syndrome
#11
Liyang Xing, Liuxin Qu, Hong Chen, Song Gao
OBJECTIVE: To evaluate the clinical effect of Traditional Chinese Spinal Orthopedic Manipulation (TCSOM) in treating Functional Abdominal Pain Syndrome (FAPS) in comparison with Pinaverium Bromide (Dicetel, PBD), and to assess a possible cause for FAPS. METHODS: 60 cases of FAPS patients were randomly assigned to the TCSOM group and PBD group according to the random number table method. The TCSOM group was treated with thumb pressing manipulation, every other day in the first week, and once every three days in the second week, for 5 times treatments...
June 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28616278/management-of-the-vertebral-artery-during-thoracic-endovascular-aortic-repair-with-coverage-of-the-left-subclavian-artery
#12
Jian Zhu, Er-Ping Xi, Shui-Bo Zhu, Gui-Lin Yin, Rong-Ping Wang, Yu Zhang
BACKGROUND: The application of thoracic endovascular aortic repair (TEVAR), a minimally invasive operation, in the aortic arch has been a challenge of cardiovascular surgery in recent years. This study aimed to investigate management of the vertebral artery with coverage of the left subclavian artery (LSA) during TEVAR. METHODS: From January 2007 to September 2014 in the Department of Cardiothoracic Surgery at Wuhan General Hospital of Guangzhou Military Region, 160 patients underwent LSA closure or partial coverage during TEVAR of an aortic lesion near the LSA...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28615341/high-frequency-epidural-stimulation-across-the-respiratory-cycle-evokes-phrenic-short-term-potentiation-after-incomplete-cervical-spinal-cord-injury
#13
Elisa J Gonzalez-Rothi, Kristi A Streeter, Marie H Hanna, Anna C Stamas, Paul J Reier, David M Baekey, David D Fuller
C2 spinal hemilesion (C2Hx) paralyzes the ipsilateral diaphragm, but recovery is possible through activation of "crossed spinal" synaptic inputs to ipsilateral phrenic motoneurons. We tested the hypothesis that high frequency epidural stimulation (HF-ES) would potentiate ipsilateral phrenic output after subacute and chronic C2Hx. HF-ES (300 Hz) was applied to the ventrolateral C4 or T2 spinal cord ipsilateral to C2Hx in anesthetized and mechanically ventilated adult rats. Stimulus duration was 60-sec and currents ranged from 100-1000 µA...
June 14, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28610610/atypical-findings-of-perineural-cysts-on-postmyelographic-computed-tomography-a-case-report-of-intermittent-intercostal-neuralgia-caused-by-thoracic-perineural-cysts
#14
Hirokazu Iwamuro, Taro Yanagawa, Sachiko Takamizawa, Makoto Taniguchi
BACKGROUND: Perineural cysts are sometimes found incidentally with magnetic resonance imaging, and clinical symptoms requiring treatment are rare. Perineural cysts typically exhibit delayed filling with contrast medium on myelography, which is one of the criteria used by Tarlov to distinguish perineural cysts from meningeal diverticula. We present a case of multiple thoracolumbar perineural cysts, one of which was considered the cause of intermittent intercostal neuralgia with atypical findings on postmyelographic computed tomography seen as selective filling of contrast medium...
June 13, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28610438/pneumorachis-associated-with-persistent-tachycardia-after-blunt-thoracic-trauma
#15
Paris-Dimitrios Kalogerakos, George Lazopoulos, Stefanos Palioudakis, Ioannis Drositis, Kiriaki Chionidou, George Chalkiadakis
Pneumorachis, or intraspinal air, can be a rare result of blunt thoracic trauma. We report the case of a 40-year-old man with multiple injuries and pneumorachis associated with persistent tachycardia. As factors that increase heart rate were gradually ruled out, intraspinal air was considered the potential culprit. Computed tomography revealed intraspinal air at the thoracic level, which possibly promoted cardiac arrhythmogenesis. Air may transiently compress the preganglionic cardiac sympathetic nerves and increase sympathetic output to the heart...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28608859/residua-of-thymus-in-the-mediastinum-clinical-aspects-cadaveric-study
#16
Ewa Mizia, Wiesława Klimek-Piotrowska, Jarosław Kużdżał, Tomasz Konopka, Monika Lis, Juliusz Pankowski, Artur Pasternak, Jarosław Zawiliński, Andrzej Wrona
The main goal of this study was to investigate possible residua of thymic tissue in 100 adult cadavers with no thoracic pathology known before, by dissection of standard locations of thymic tissue in perithyroid, periaortic, peritracheal and retrotracheal spaces, as well as areas located next to the course of phrenic, vagus and left recurrent laryngeal nerves. Thus obtained tissue samples were studied by two pathologists independently. The remnants of the thymic tissue were found in 61 out of 100 specimens studied...
2017: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/28606639/isolated-serratus-palsy-etiology-influences-its-long-term-outcome
#17
Martti Vastamäki, Leena Ristolainen, Heidi Vastamäki, Veera Pikkarainen
HYPOTHESIS AND BACKGROUND: The cause of isolated serratus palsy is multifactorial, but evaluation of the mechanism of the injury indicates that the lesion to the long thoracic nerve is mechanical in origin in most cases. What is unknown, however, is how etiology influences its long-term outcome. We believed that overuse injuries may recover sooner and better than acute traumatic, infectious, or inflammatory injuries. METHODS: We determined the presumed etiology of isolated serratus palsy in 92 patients treated by brace or observation only and compared it with its long-term outcome after a mean follow-up of 18...
June 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28606109/neurophysiological-assessment-of-spinal-cord-injuries-in-dogs-using-somatosensory-and-motor-evoked-potentials
#18
REVIEW
Maria Claudia Campos Mello Inglez de Souza, Ricardo José Rodriguez Ferreira, Geni Cristina Fonseca Patricio, Julia Maria Matera
Somatosensory evoked potentials (SSEPs) and motor evoked potentials (MEPs) are non-invasive neurophysiological tests that reflect the functional integrity of sensory and motor pathways. Despite their extensive use and description in human medicine, reports in veterinary medicine are scarce. SSEPs are obtained via peripheral stimulation of sensory or mixed nerves; stimulation induces spinal and cortical responses, which are recorded when sensory pathways integrity is preserved. MEPs can be obtained via transcranial electrical or magnetic stimulation; in this case, thoracic and pelvic limb muscle responses are captured if motor pathways are preserved...
June 12, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28601952/an-in-vitro-experimental-model-for-analysis-of-central-control-of-sympathetic-nerve-activity
#19
Yuji Oyama, Kamon Iigaya, Yoshino Minoura, Toshitaka Okabe, Masahiko Izumizaki, Hiroshi Onimaru
Newborn rat brainstem-spinal cord preparations are useful for in vitro analysis of various brainstem functions including respiratory activity. When studying the central control of sympathetic nerve activity (SNA), it is important to record peripheral outputs of the SNA. We developed an in vitro preparation in which neuronal connections between the cardiovascular center in the medulla and SNA peripheral outputs are preserved. Zero- to 1-day-old rats were deeply anesthetized with isoflurane, and the brainstem and spinal cord were isolated with a partial right thoracic cage to record sympathetic nerve discharge from the right thoracic sympathetic nerve trunk (T9-T11)...
June 10, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28584346/analgesic-efficacy-of-ultrasound-guided-paravertebral-block-versus-serratus-plane-block-for-modified-radical-mastectomy-a-randomised-controlled-trial
#20
Kapil Gupta, Kadapa Srikanth, Kiran Kumar Girdhar, Vincent Chan
BACKGROUND AND AIMS: Modified radical mastectomy (MRM) may be associated with severe post-operative pain, leading to chronic pain syndrome. We compared the post-operative analgesic profile of two ultrasound-guided nerve blocks: Paravertebral block (PVB) and serratus plane block (SPB). METHODS: This double-blind, randomised study was conducted on fifty adult females, scheduled for MRM with axillary dissection. After inducing general anaesthesia with intravenous midazolam 1 mg, fentanyl 1...
May 2017: Indian Journal of Anaesthesia
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