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https://www.readbyqxmd.com/read/28329436/prospective-evaluation-of-a-week-one-overnight-metyrapone-test-with-subsequent-dynamic-assessments-of-hypothalamic-pituitary-adrenal-axis-function-after-pituitary-surgery
#1
Katherine English, Warrick J Inder, Zara Weedon, Goce Dimeski, Jane Sorbello, Anthony W Russell, Emma L Duncan, Ross Cuneo
OBJECTIVE: To determine if an overnight metyrapone test (OMT) within the first week post pituitary surgery can definitively assess the hypothalamic-pituitary-adrenal (HPA) axis, compared with subsequent dynamic tests and glucocorticoid requirement at 6 months. DESIGN: Prospective study measuring morning cortisol levels on day 3 and 4 post-operatively, OMT day 5-7 and week 6, 250μg short Synacthen test (SST) week 6 and insulin tolerance test (ITT) week 7. PATIENTS AND MEASUREMENTS: Forty participants who underwent pituitary surgery at a single centre (Cushing's disease excluded) and were followed for at least 6 months...
March 22, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28329333/pre-and-postoperative-tricuspid-regurgitation-in-patients-with-severe-symptomatic-aortic-stenosis-importance-of-pre-operative-tricuspid-annulus-diameter
#2
Claire Dumont, Elena Galli, Emmanuel Oger, Maxime Fournet, Erwan Flecher, Christophe Leclercq, Jean-Philippe Verhoye, Erwan Donal
Aims: Secondary tricuspid regurgitation (STR) is commonly found in patients with aortic stenosis and is associated with increased morbidity. The study sought to evaluate the prevalence of pre-operative STR and its progression after surgical aortic valve replacement (SAVR) or transcatheter aortic valve implantation (TAVI). Also, it sought to analyse the predictors of post-operative changes in STR. Methods and results: We prospectively evaluated 116 patients (aged 75...
March 7, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28327582/real-time-sentinel-lymph-node-biopsy-guidance-using-combined-ultrasound-photoacoustic-fluorescence-imaging-in-vivo-proof-of-principle-and-validation-with-nodal-obstruction
#3
Jeeun Kang, Jin Ho Chang, Sun Mi Kim, Hak Jong Lee, Haemin Kim, Brian C Wilson, Tai-Kyong Song
Precise sentinel lymph node (SLN) identification is crucial not only for accurate diagnosis of micro-metastases at an early stage of cancer progression but also for reducing the number of SLN biopsies (SLNB) to minimize their severe side effects. Furthermore, it is desirable that an SLNB guidance should be as safe as possible in routine clinical use. Although there are currently various SLNB guidance methods for pre-operative or intra-operative assessment, none are ideal. We propose a real-time SLNB guidance method using contrast-enhanced tri-modal images (i...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325672/new-parameter-derived-from-three-dimensional-speckle-tracking-echocardiography-for-the-estimation-of-left-ventricular-filling-pressure-in-nondilated-hearts
#4
Daisuke Sakurai, Toshihiko Asanuma, Kasumi Masuda, Hikaru Koriyama, Satoshi Nakatani
BACKGROUND: E/e' is clinically useful for the noninvasive assessment of left ventricular (LV) filling pressure. However, its use in some conditions is controversial, and angle dependence of the Doppler measurement and preload dependence of mitral e' in nondilated hearts represent major problems. The ratio of early filling rate derived from the time derivative of LV volume to early diastolic strain rate (FRe/SRe), similar to E/e', by three-dimensional (3D) speckle-tracking echocardiography has the potential to address such limitations...
March 18, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28325055/-experience-with-hepatoblastoma-treatment-in-small-children-the-use-of-preoperative-3d-virtual-analysis-mevis-for-liver-resections
#5
J Janek, P Bician, P Kenderessy, P Kothaj, K Novotná, J Koňarčík, Ľ Laca, J Ulianko, I Dedinská
INTRODUCTION: Hepatoblastoma is an uncommon but most frequent liver cancer in infants and children. The therapy is complex, including neoadjuvant, surgical, and adjuvant therapy. For surgery, the presence of a specialized surgeon and an anaesthesiologist is required. For planning the surgery, the 3D analysis MeVis is currently available. The objective of the work is the assessment of a group of children operated for a liver hepatoblastoma and the assessment of contribution of a pre-surgery virtual 3D analysis MeVis for a surgeon...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28324966/random-forests-to-predict-tumor-recurrence-following-cervical-cancer-therapy-using-pre-and-per-treatment-18-f-fdg-pet-parameters
#6
Geoffrey Roman-Jimenez, Oscar Acosta, Julie Leseur, Anne Devillers, Henri Der Sarkissian, Lina Guzman, Eloi'se Grossiord, Juan-David Ospina, Renaud De Crevoisier
The ability to predict tumor recurrence after chemoradiotherapy of locally advanced cervical cancer is a crucial clinical issue to intensify the treatment of the most high-risk patients. The objective of this study was to investigate tumor metabolism characteristics extracted from pre- and per-treatment (18)F-FDG PET images to predict 3-year overall recurrence (OR). A total of 53 locally advanced cervical cancer patients underwent pre- and per-treatment (18)F-FDG PET (respectively PET1 and PET2). Tumor metabolism was characterized through several delineations using different thresholds, based on a percentage of the maximum uptake, and applied by region-growing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324919/victorian-trabeculectomy-audit
#7
Jennifer C Fan Gaskin, Sukhpal S Sandhu, Mark J Walland
IMPORTANCE: This study highlights the efficacy and safety of trabeculectomy in Victoria, Australia. BACKGROUND: Trabeculectomy is currently the gold- standard in glaucoma surgery. However, its role has been increasingly questioned due to its associated risks and complications. This audit aimed to assess the efficacy and safety of trabeculectomy surgery in the state of Victoria, Australia. DESIGN: A cross-sectional, retrospective, and voluntary state- wide audit of trabeculectomy surgery by individual surgeons in 2012 with 24-months follow-up...
March 21, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28320577/pre-operative-functional-cardiovascular-reserve-is-associated-with-acute-kidney-injury-after-intervention
#8
A Saratzis, J Shakespeare, O Jones, M J Bown, A Mahmood, C H E Imray
BACKGROUND: Acute kidney injury (AKI) is a common complication after endovascular intervention, associated with poor short and long-term outcomes. However, the mechanisms underlying AKI development remain poorly understood. The impact of pre-existing cardiovascular disease and low cardiovascular reserve (CVR) in AKI is unclear; it remains unknown whether AKI is primarily related to pre-existing comorbidity or to procedural parameters. The association between CVR and AKI after EVAR was therefore assessed...
March 17, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28320451/personal-medical-electronic-devices-and-walk-through-metal-detector-security-systems-assessing-electromagnetic-interference-effects
#9
Joshua Guag, Bisrat Addissie, Donald Witters
BACKGROUND: There have been concerns that Electromagnetic security systems such as walk-through metal detectors (WTMDs) can potentially cause electromagnetic interference (EMI) in certain active medical devices including implantable cardiac pacemakers and implantable neurostimulators. Incidents of EMI between WTMDs and active medical devices also known as personal medical electronic devices (PMED) continue to be reported. This paper reports on emission measurements of sample WTMDs and testing of 20 PMEDs in a WTMD simulation system...
March 20, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28319326/altered-defecatory-behaviour-and-faecal-incontinence-in-a-video-tracked-animal-model-of-pudendal-neuropathy
#10
Liam A Devane, Eric Lucking, Judith Evers, Maria Buffini, S Mark Scott, Charles H Knowles, P Ronan O'Connell, James F X Jones
AIMS: To develop a behavioural animal model of faecal continence and assess the effect of retrouterine balloon inflation (RBI) injury. RBI in the rat causes pudendal neuropathy, a risk factor for obstetric related faecal incontinence in humans. METHOD: Video-tracking healthy rats (n=12) in a cage containing a latrine box was used to monitor their defaecatory behaviour index (DBI) over 2 weeks. DBI (range 0 - 1) was devised by dividing the defaecation rate (pellets/hour) outside the latrine by that of the whole cage...
March 20, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28315479/biopsychosocial-influence-on-shoulder-pain-rationale-and-protocol-for-a-pre-clinical-trial
#11
Steven Z George, Roland Staud, Paul A Borsa, Samuel S Wu, Margaret R Wallace, Warren H Greenfield, Lauren N Mackie, Roger B Fillingim
BACKGROUND: Chronic musculoskeletal pain conditions are a prevalent and disabling problem. Preventing chronic musculoskeletal pain requires multifactorial treatment approaches that address its complex etiology. Prior cohort studies identified a high risk subgroup comprised of variation in COMT genotype and pain catastrophizing. This subgroup had increased chance of heightened pain responses (in a pre-clinical model) and higher 12month post-operatives pain intensity ratings (in a clinical model)...
March 14, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28302078/early-serum-creatinine-accurately-predicts-acute-kidney-injury-post-cardiac-surgery
#12
Keren Grynberg, Kevan R Polkinghorne, Sharon Ford, Fiona Stenning, Thomas E Lew, Jonathan A Barrett, Shaun A Summers
BACKGROUND: Acute Kidney Injury (AKI) is a well recognized complication of cardiac surgery. It is associated with significant morbidity and mortality. The aims of our study are twofold; 1. To define the incidence of AKI post cardiac surgery. 2. To identify pre-morbid and operative risk factors for developing AKI and to determine if immediate post operative serum creatinine (IPOsCr) accurately predicts the development of AKI. METHODS: We prospectively studied 196 consecutive patients undergoing elective (on-pump) cardiac surgery...
March 16, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28300705/comparison-of-wear-rate-and-osteolysis-between-second-generation-annealed-and-first-generation-remelted-highly-cross-linked-polyethylene-in-total-hip-arthroplasty-a-case-control-study-at-a-minimum-of-five-years
#13
Ryohei Takada, Tetsuya Jinno, Daisuke Koga, Kazumasa Miyatake, Takeshi Muneta, Atsushi Okawa
BACKGROUND: There is no previous report that directly compared wear resistance of second-generation annealed highly cross-linked polyethylene with that of first-generation remelted highly cross-linked polyethylene. We therefore performed a retrospective study at a minimum of 5-year follow-up comparing second-generation annealed and first-generation remelted highly cross-linked polyethylene in order to: (1) assess wear rates and (2) compare the incidence of osteolysis between, (3) identify the frequency of complication related to the two types of highly cross-linked polyethylene...
March 11, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28300680/evaluation-by-mri-of-silent-brain-infarcts-in-pre-and-post-operative-asymptomatic-carotid-surgery
#14
Remy Pascot, Anne Daoudal, Alain Cardon, Gilles Godet, Antoine Lucas, Elodie Clochard, Jean-Yves Gauvrit, Yann Le Teurnier, Adrien Kaladji
OBJECTIVE: To report the prevalence of Silent Brain Infarcts (SBI) at MRI before and after surgery for asymptomatic high grade carotid stenosis. DESIGN: Single-center retrospective observational study METHODS: Asymptomatic patients who underwent carotid endarterectomy between October 2012 and October 2014 were included. The preoperative assessment included a Doppler and a CT scan dating less than 3 months. A neurological examination was performed during the anesthesia consultation and in the 15 days before surgery...
March 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28299572/early-weight-loss-independent-effects-of-sleeve-gastrectomy-on-diet-induced-cardiac-dysfunction-in-obese-wistar-rats
#15
Tammy L Kindel, Tom Foster, Paul Goldspink, Steven J Kindel, John Corbett, Michael Widlanksy, Jennifer Strande
INTRODUCTION: Several reports suggest that bariatric surgery significantly improves cardiac function in patients with obesity cardiomyopathy. The mechanism is unknown but may be due to weight-loss independent factors. We predict that the changes in gastrointestinal anatomy after a rodent model of sleeve gastrectomy (SG) will have weight-loss independent effects on cardiac dysfunction. METHODOLOGY: Cardiac dysfunction was induced by feeding a 60% kcal from fat diet to male Wistar rats for 10 weeks...
March 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28298792/comparison-of-king-vision-and-truview-laryngoscope-for-postextubation-visualization-of-vocal-cord-mobility-in-patients-undergoing-thyroid-and-major-neck-surgeries-a-randomized-clinical-trial
#16
Anto Sahaya Priyanka, Kusha Nag, V R Hemanth Kumar, Dewan Roshan Singh, Senthil Kumar, T Sivashanmugam
BACKGROUND: Visualization of vocal cords following extubation after thyroid and major neck surgeries is highly desirable for the surgeon as well as the anaesthesiologist to rule out vocal cord palsy or oedema. As the patient is emerging from general anaesthesia, it may be challenging for the anaesthesiologist to optimally visualise and grade vocal cord movement following extubation. SETTING: Randomized clinical trial at a tertiary care centre. METHODOLOGY: After obtaining institutional ethics committee approval, 60 patients posted for thyroid and major neck surgeries under American Society of Anesthesiologists (ASA) grade I and II were recruited for the study...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28298014/effect-of-granulocyte-colony-stimulating-factor-on-the-cochlear-nuclei-after-creation-of-a-partial-nerve-lesion-an-experimental-study-in-rats
#17
Guilherme Ramina Montibeller, Benjamin Schackmann, Steffi Urbschat, Joachim M K Oertel
OBJECTIVE The risk of injury of the cochlear nerve during angle (CPA) surgery is high. Granulocyte colony-stimulating factor (G-CSF) has been found in various experimental models of peripheral and CNS injury to have a neuroprotective effect by inhibiting apoptosis and inflammation. However, to the authors' knowledge, the influence of G-CSF on cochlear nerve regeneration has not been reported. This study investigated the neuroprotective effect of G-CSF after a partial cochlear nerve lesion in rats. METHODS A lesion of the right cochlear nerve in adult male Sprague-Dawley rats was created using a water-jet dissector with a pressure of 8 bar...
February 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28296143/targeting-the-safe-zone
#18
Andrea Mignatti, Patricia Friedmann, David Paul Slovut
OBJECTIVE: The aim of this study was to assess the effectiveness of a quality improvement (QI) program in reducing vascular complications during cardiac catheterization. BACKGROUND: Vascular access complications during cardiac catheterization are associated with higher morbidity and mortality. We implemented a QI program focused on using micropuncture techniques and targeting the "safe zone," an area below the inferior border of the inferior epigastric artery and above the inferior border of the femoral head, for femoral artery puncture...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28296032/right-ventricular-remodelling-after-transcatheter-pulmonary-valve-implantation
#19
Efstathios D Pagourelias, Ana M Daraban, Razvan O Mada, Jürgen Duchenne, Oana Mirea, Bjorn Cools, Ruth Heying, Derize Boshoff, Jan Bogaert, Werner Budts, Marc Gewillig, Jens-Uwe Voigt
OBJECTIVES: To define the optimal timing for percutaneous pulmonary valve implantation (PPVI) in patients with severe pulmonary regurgitation (PR) after Fallot's Tetralogy (ToF) correction. BACKGROUND: PPVI among the aforementioned patients is mainly driven by symptoms or by severe right ventricular (RV) dilatation/dysfunction. The optimal timing for PPVI is still disputed. METHODS: Twenty patients [age 13.9 ± 9.2 years, (range 4.3-44...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28294593/effect-of-vitamin-d-replacement-in-primary-hyperparathyroidism-with-concurrent-vitamin-d-deficiency-a-systematic-review-and-meta-analysis
#20
Huai Heng Loh, Lee Ling Lim, Anne Yee, Huai Seng Loh, Shireene R Vethakkan
INTRODUCTION: We conducted a meta-analysis to assess the effects of vitamin D replacement on biochemical and skeletal parameters in subjects with mild primary hyperparathyroidism (PHPT) and coexistent vitamin D deficiency. EVIDENCE ACQUISITION: A systematic search of all English-language medical literature published from 1980 till May 2016 using Pubmed, Embase and Ovid was performed. Nine observational studies were evaluated after fulfilling the inclusion and exclusion criteria...
March 14, 2017: Minerva Endocrinologica
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