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https://www.readbyqxmd.com/read/29676798/afferent-neural-feedback-overrides-the-modulating-effects-of-arousal-hypercapnia-and-hypoxemia-on-neonatal-cardio-respiratory-control
#1
Kathleen J Lumb, Jennifer M Schneider, Thowfique Ibrahim, Anita Rigaux, Shabih U Hasan
KEY POINTS: Evidence at whole animal, organ-system, and cellular and molecular levels suggests that afferent volume feedback is critical for establishment of adequate ventilation at birth. Due to the irreversible nature of vagal ablation studies to date, it was difficult to quantify the roles of afferent volume input, arousal and changes in blood gas tensions on neonatal respiratory control. During reversible perineural vagal block, profound apneas, and hypoxemia and hypercarbia were observed necessitating termination of perineural blockade...
April 20, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29675510/isolated-subscapularis-tendon-tear-in-a-skeletally-immature-soccer-player
#2
Paolo Avanzi, Luca Dei Giudici, Roberto Giovarruscio, Antonio Gigante, Claudio Zorzi
Subscapularis injury in adolescents, usually associated to an avulsion fracture of the lesser humeral tuberosity, accounts for less than 2% of all fractures of the proximal humerus. Isolated tears of the subscapularis tendon without a history of dislocation and associated avulsion fractures are an even rarer occurrence, and treatment is controversial. This article describes a rare case of a 12-year-old suffering from an isolated subscapularis tear and discusses its management. The patient was evaluated at presentation, and at 1 to 2...
March 2018: Joints
https://www.readbyqxmd.com/read/29675500/migration-of-mesenchymal-stem-cells-of-bursal-tissue-after-rotator-cuff-repair-in-rats
#3
Elem Safi, Andreas Ficklscherer, Maryna Bondarava, Oliver Betz, Anja Zhang, Volkmar Jansson, Peter E Müller
Purpose  The purpose of this study is to verify migration of mesenchymal stem cells of bursal tissue into the healing site after rotator cuff repair in rats. Methods  Fischer rats and green fluorescent protein (GFP)-transgenic rats were used. Bursal tissue from GFP rats was isolated and transplanted into tendon repair sites in Fischer rats. We examined the histology of the rotator cuff and the proportion of GFP-positive cells in the repaired rotator cuff 1, 3, and 6 weeks after surgery. Results  Cell migration was observed during the third and sixth week after surgery...
March 2018: Joints
https://www.readbyqxmd.com/read/29674403/unexpected-case-of-pneumomediastinum-and-subcutaneous-emphysema-primary-or-secondary-aetiology
#4
Amanda J L Cheng, Timothy J Sadler
A 77-year-old man was admitted with a relapse of antineutrophil cytoplasmic antibody-positive vasculitis with pulmonary involvement and acute kidney injury. There was a background of pulmonary fibrosis (non-specific interstitial pneumonia type pattern) and superadded pulmonary haemorrhage, acute pulmonary oedema and sepsis. The patient was intubated for 4 days and remained dependent on high flow oxygen and continuous positive airway pressure after extubation. A chest radiograph performed 2 weeks after extubation demonstrated unexpected, extensive pneumomediastinum and subcutaneous emphysema...
April 19, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29673104/omega-3-polyunsaturated-fatty-acid-supplementation-reduces-blood-pressure-but-not-renal-vasoconstrictor-response-to-orthostatic-stress-in-healthy-older-adults
#5
Christine M Clark, Kevin D Monahan, Rachel C Drew
Older adults exhibit augmented renal vasoconstriction during orthostatic stress compared to young adults. Consumption of omega-3 polyunsaturated fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) found in fish oil (FO), modulates autonomic nerve activity. However, the effect of omega-3 polyunsaturated fatty acid consumption on the renal vasoconstrictor response to orthostatic stress in young and older adults is unknown. Therefore, 10 young (25 ± 1 years; mean ± SEM) and 10 older (66 ± 2 years) healthy adults ingested 4 g FO daily for 12 weeks, and underwent graded lower body negative pressure (LBNP; -15 and -30 mmHg) pre- and post-FO supplementation...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29669489/validity-and-responsiveness-of-the-short-version-of-western-ontario-rotator-cuff-index-short-worc-in-patients-with-rotator-cuff-repair
#6
Neha Dewan, Joy C MacDermid, Norma MacIntyre
Study Design Clinical measurement. Background Recently, the Western Ontario Rotator Cuff Index (WORC) has been shortened; but few studies report measurement properties. Objective To compare the validity and responsiveness of disease-specific measures, short version of the Western Ontario Rotator Cuff Index (Short-WORC) and WORC with comparator measures (joint-specific: Shoulder Pain and Disability Index; SPADI, Simple Shoulder Test; SST); region-specific (Disabilities of the Arm, Shoulder and Hand; DASH); general health status (12-item short form health survey; SF-12v2)) in the patients undergoing rotator cuff repair (RCR)...
April 18, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29669479/long-term-use-of-hydraulic-artificial-urethral-sphincters-in-nine-dogs-from-new-zealand-with-urethral-sphincter-mechanism-incompetence
#7
K R S Morgan, H R Milner, A Tikekar, H L Smith, A R Coomer
AIMS: To report on the long-term outcomes of hydraulic artificial urethral sphincter (HAUS) placement for the correction of urethral sphincter mechanism incompetence (USMI) in New Zealand dogs. METHODS: Retrospective data were obtained from cases of dogs which had a HAUS placed after failed medical and/or surgical management of USMI between August 2012 and November 2016. Owner assessment of urinary incontinence was evaluated by an online survey in May 2017 using a visual analogue scale (0 being normal, 100 being severely affected) for the frequency, volume and severity of any straining to urinate, immediately prior to the placement of the HAUS and at the time of the survey...
April 18, 2018: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/29669443/arthroscopic-knotless-single-row-repair-preserving-full-footprint-versus-tear-completion-repair-for-partial-articular-sided-rotator-cuff-tear
#8
Cen Tao Liu, Heng An Ge, Rui Hu, Jing Biao Huang, Yi Chao Cheng, Min Wang, Peng Wu, Biao Cheng
BACKGROUND: The comparison of clinical outcomes of arthroscopic footprint-preserving knotless single-row repair with the tear completion repair technique for articular-sided partial-thickness rotator cuff tears (PTRCTs) remains unclear. METHODS: A total of 68 patients diagnosed with articular-sided PTRCTs who underwent rotator cuff repair between December 2014 and June 2015 were included. Of the 68 patients, 30 received footprint-preserving knotless single-row repair (group 1) and 38 received the tear completion repair technique (group 2)...
May 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29669327/effects-of-baicalin-on-diabetic-cardiac-autonomic-neuropathy-mediated-by-the-p2y12-receptor-in-rat-stellate-ganglia
#9
Xuan Sheng, Jiayue Wang, Jingjing Guo, Yurong Xu, Huaide Jiang, Chaoran Zheng, Zixi Xu, Yuanruohan Zhang, Hongyu Che, Shangdong Liang, Gaochun Zhu, Guilin Li
BACKGROUND/AIMS: Chronic diabetic hyperglycemia can damage various of organ systems and cause serious complications. Although diabetic cardiac autonomic neuropathy (DCAN) is the primary cause of death in diabetic patients, its pathogenesis remains to be fully elucidated. Baicalin is a flavonoid extracted from Scutellaria baicalensis root and has antibacterial, diuretic, anti-inflammatory, anti- metamorphotic, and antispasmodic effects. Our study explored the effects of baicalin on enhancing sympathoexcitatory response induced by DCAN via the P2Y12 receptor...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29669326/atorvastatin-attenuates-myocardial-hypertrophy-in-spontaneously-hypertensive-rats-via-the-c-ebp%C3%AE-pgc-1%C3%AE-ucp3-pathway
#10
Yintao Chen, Ye Chang, Naijin Zhang, Xiaofan Guo, Guozhe Sun, Yingxian Sun
BACKGROUND/AIMS: Many clinical and experimental studies have shown that treatment with statins could prevent myocardial hypertrophy and remodeling induced by hypertension and myocardial infarction. But the molecular mechanism was not clear. We aimed to investigate the beneficial effects of atorvastatin on hypertension-induced myocardial hypertrophy and remodeling in spontaneously hypertensive rats (SHR) with the hope of revealing other potential mechanisms or target pathways to interpret the pleiotropic effects of atorvastatin on myocardial hypertrophy...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29669311/a-new-clinical-model-for-facilitating-the-development-of-pattern-recognition-skills-in-clinical-pain-assessment
#11
David M Walton, James M Elliott
Common, enigmatic musculoskeletal conditions such as whiplash-associated disorder, myofascial pain syndrome, low back pain, headache, fibromyalgia, osteoarthritis, and rotator cuff pathology, account for significant social, economic, and personal burdens on a global scale. Despite their primacy (and shared sequelae) there remains a paucity of available and effective management options for patients with both acute and chronic conditions. Establishing an accurate prognostic or diagnostic profile on a patient-by-patient basis can challenge the insight of both novice and expert clinicians...
April 9, 2018: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29668776/muscle-regeneration-through-therapy-with-estromal-stem-cells-in-injury-of-infraespinhosus-muscle-of-sheep
#12
Aline Grama Moreira Brandão, Angélica Consalter, Juliana da Silva Leite, Helia Zamprogno, Ana Maria Reis Ferreira
PURPOSE: To evaluate the effects of rotator cuff muscle regeneration in sheep and establish an experimental model for the use of autologous stem cells as a treatment option for tendon injuries. METHODS: Infrared muscle tenotomies and Penrose drain implantation were performed on 12 shoulders of six clinically healthy adult sheep. After 60 days, the tendons were submitted to tissue repair, drainage removal, and divided into two groups according to the use of autologous stromal stem cells for treatment...
March 2018: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29666407/an-implantable-peripheral-nerve-recording-and-stimulation-system-for-experiments-on-freely-moving-animal-subjects
#13
Byunghun Lee, Mukhesh K Koripalli, Yaoyao Jia, Joshua Acosta, M S E Sendi, Yoonsu Choi, Maysam Ghovanloo
A new study with rat sciatic nerve model for peripheral nerve interfacing is presented using a fully-implanted inductively-powered recording and stimulation system in a wirelessly-powered standard homecage that allows animal subjects move freely within the homecage. The Wireless Implantable Neural Recording and Stimulation (WINeRS) system offers 32-channel peripheral nerve recording and 4-channel current-controlled stimulation capabilities in a 3 × 1.5 × 0.5 cm3 package. A bi-directional data link is established by on-off keying pulse-position modulation (OOK-PPM) in near field for narrow-band downlink and 433 MHz OOK for wideband uplink...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29665765/sub-acromial-balloon-spacer-for-irreparable-rotator-cuff-tears-is-it-an-appropriate-salvage-procedure
#14
Dan Prat, Shay Tenenbaum, Moshe Pritsch, Ariel Oran, Guy Vogel
INTRODUCTION: Irreparable rotator cuff tear (RCT) presents a difficult treatment challenge for the orthopaedic surgeon. Many treatment strategies with varying degrees of success have been performed over the years. One of the suggested surgical treatment options is the use of a biodegradable sub-acromial balloon spacer. METHODS: A retrospective study of patients treated with sub-acromial balloon spacer between the years 2011 and 2016 was conducted. Mean follow-up time was 14...
May 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29665666/-early-results-of-fenestrated-endovascular-aortic-repair-for-the-treatment-of-patients-with-thoracoabdominal-pathologies
#15
J C Zhu, X C Dai, Y D Luo, H L Fan, Z Feng, Y W Zhang, F G Hu
Objective: To evaluate the early results of fenestrated endovascular aortic repair (FEVAR) using physician-modified stent grafts (PMSGs) for the treatment of patients with thoracoabdominal pathologies. Methods: Nineteen consecutive patients who underwent FEVAR using PMSGs between April 2012 and September 2017 were retrospectively reviewed. The modality of FEVAR technique was assessed, perioperative clinical data was recorded and the early results were evaluated. Results: Indications were thoracoabdominal aortic pathologies, including juxtarenal abdominal aortic aneurysm (JAAA) ( n =12), chronic thoracoabdominal aortic dissection with aneurysmal dilatation ( n =3), thoracoabdominal aortic aneurysm (TAAA) ( n =1), infrarenal AAA with an accessory renal artery in the segment of the aneurysmal neck ( n =2) and type Ⅰ endoleak after EVAR for AAA( n =1)...
March 27, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29665605/-shoulder-arthroplasty
#16
Anna Krukenberg, Jan-Philipp Imiolczyk, Philipp Moroder, Markus Scheibel
Shoulder arthroplasty has been performed increasingly during the last years. The concept of modern anatomic shoulder arthroplasty is based on C. S. Neer's first shoulder prosthesis in the 1950s which was originally designed for the treatment of fractures of the proximal humerus. Since then, this monoblock prosthesis has undergone many changes and improvements. By now, an anatomic reconstruction of the joint is possible. Hence, the indications for anatomic shoulder arthroplasty have been added amongst others by osteoarthritis, necrosis, rheumatoid arthritis or posttraumatic arthritis...
April 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29664803/posterior-shoulder-dislocation-associated-with-the-head-splitting-and-humeral-neck-fracture-impact-of-understanding-radiologic-signs-and-experience-with-an-extended-deltopectoral-approach
#17
Kemal Gokkus, Ergin Sagtas, Hasan Kara, Ahmet T Aydin
In this paper, our main objective was to emphasize the competency of extended deltopectoral exposure, enforced with the supraspinatus and subscapularis detachment, to gain access to the entire head. The second important point in this paper was to underline the importance of the knowledge that is necessary for interpreting classic radiologic signs of posterior fracture-dislocation of the shoulder. A 47-year-old woman fell down directly onto her shoulder while she was skiing. She was diagnosed with posterior shoulder dislocation, associated with fracture of the head (head splitting) and humeral neck fracture, with the aid of plain radiographs and computed tomographic results...
April 11, 2018: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/29664694/immediate-use-of-uncuffed-tracheostomy-after-free-flap-reconstruction-of-the-head-and-neck
#18
Priyesh N Patel, Al C Valmadrid, Daniel Y Hong, David O Francis, Michael W Sim, Sarah L Rohde
Objective To determine if immediate postoperative uncuffed tracheostomy placement following oral cavity or oropharyngeal head and neck free flap reconstruction is associated with shorter hospital length of stay and higher inpatient decannulation rates without an increase in respiratory complications, as compared with immediate placement of cuffed tracheostomy. Study Design Retrospective cohort. Setting Tertiary referral center. Subjects and Methods Patients were included if they underwent free flap reconstruction for oral cavity or oropharyngeal squamous cell carcinoma and had an intraoperative tracheostomy placed between 2005 and 2016...
April 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29664415/model-based-optimal-multipolar-stimulation-without-a-priori-knowledge-of-nerve-structure-application-to-vagus-nerve-stimulation
#19
Melissa Dali, Olivier Rossel, David Andreu, Laure Laporte, Alfredo Hernandez, Jeremy Laforet, Eloi Marijon, Albert Hagège, Maureen Clerc, Christine Henry, David Guiraud
OBJECTIVE: Multipolar cuff electrode can selectively stimulate areas of peripheral nerves and therefore enable to control independent functions. However, the branching and fascicularization are known for a limited set of nerves and the specific organization remains subject-dependent. This paper presents a general modeling and optimization methods in the context of multipolar stimulation using a cuff electrode without a priori knowledge of the nerve structure. Vagus nerve stimulation experiments based on the optimization results were then investigated...
April 17, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29664057/remote-ischemic-postconditioning-for-ischemic-stroke-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#20
Jing-Jing Zhao, Hui Xiao, Wen-Bo Zhao, Xiao-Pei Zhang, Yu Xiang, Zeng-Jie Ye, Miao-Miao Mo, Xue-Ting Peng, Lin Wei
Background: Remote ischemic postconditioning (RIPostC) appears to protect distant organs from ischemia-reperfusion injury (IRI). However, cerebral protection results have remained inconclusive. In the present study, a meta-analysis was performed to compare stroke patients with and without RIPostC. Methods: CNKI, WanFang, VIP, CBM, PubMed, and Cochrane Library databases were searched up to July 2016. Data were analyzed using both fixed-effects and random-effects models by Review Manager...
April 20, 2018: Chinese Medical Journal
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