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Igor Govorov, Signe Löfgren, Roza Chaireti, Margareta Holmström, Katarina Bremme, Miriam Mints
INTRODUCTION: von Willebrand disease (VWD) is a hereditary bleeding disorder, caused by a deficiency in the levels and/or function of von Willebrand factor (VWF). Women with VWD appear to be at increased risk of experiencing postpartum hemorrhage (PPH), though the levels of VWF increase during pregnancy. There is limited knowledge of how PPH is associated with the subtype of VWD, plasma levels of other coagulations factors than VWF and given hemostatic treatment. AIMS: The aims were to investigate the incidence of PPH in women with VWD and to analyse the correlation between PPH and: (1) type of VWD, (2) laboratory monitoring of VWF and FVIII and (3) hemostatic drug treatment...
2016: PloS One
Malin E M Mörner, Gustaf Edgren, Anna Martling, Ulf Gunnarsson, Monika Egenvall
PURPOSE: The hypothesis in this study was that anaemia prior to surgery and perioperative red blood cell transfusion increases the risk for recurrence and overall mortality in patients with stages I-III colorectal cancer after abdominal resection with curative intent. METHODS: This is a Swedish single centre retrospective cohort study. Data on 496 consecutive radical abdominal resections stages I-III colorectal cancer performed at the Karolinska University Hospital 2007-2010 were extracted from the Swedish Colorectal Cancer Registry...
October 21, 2016: International Journal of Colorectal Disease
Arcady A Putilov, Olga G Donskaya, Evgeniy G Verevkin
One of the critical barriers to reducing the threats of sleep loss to public health, safety, and productivity is a lack of practical tools for quick identification of objective level of sleepiness. We examined a novel sleepiness measure named "spectral drowsy component score" to provide evidence for generalizability of a frequency weighting curve required for calculation of this measure. Each spectral drowsy component score is a sum of 16 weighted ln-transformed single-Hz power densities (1-16 Hz) obtained by the fast Fourier transformation of an electroencephalographic signal recorded during the first minute after closing the eyes...
October 11, 2016: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
Yoko Komada, Raoul Breugelmans, Christopher L Drake, Shun Nakajima, Norihisa Tamura, Hideki Tanaka, Shigeru Inoue, Yuichi Inoue
The aim of this study was to elucidate the level of daytime sleepiness in Japanese school-aged children and adolescents, and to examine associated factors including sleep loss and social jetlag using the Japanese version of the Pediatric Daytime Sleepiness Scale (PDSS-J). After the linguistic validation of the PDSS-J with a multi-step translation methodology, consisting of forward translation, back translation, expert review and cognitive debriefing interviews, we conducted a psychometric validation for 492 students aged 11-16 years (46...
August 12, 2016: Chronobiology International
Katarina Aili, Sofia Åström-Paulsson, Ulrich Stoetzer, Magnus Svartengren, Lena Hillert
STUDY OBJECTIVES: The aim of the study was to investigate how many nights of measurement are needed for a reliable measure of sleep in a working population including adult women and men. METHODS: In all, 54 individuals participated in the study. Sleep was assessed for 7 consecutive nights using actigraphy as an objective measure, and the Karolinska sleep diary for a subjective measure of quality. Using intra-class correlation and the Spearman-Brown formula, calculations of how many nights of measurements were required for a reliable measure were performed...
September 29, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
M Holmström, A Nangarhari, J Öhman, A-S Duberg, A Majeed, S Aleman
INTRODUCTION: Hepatitis C virus (HCV) infection is common in patients with inherited bleeding disorders treated with clotting factor concentrates prior to the introduction of viral inactivation of these products. The long-term consequences of hepatitis C infection in Swedish patients are not fully understood. AIM: To examine the impact of HCV infection on liver-related morbidity and mortality in Swedish patients with inherited bleeding disorders. METHODS: We retrospectively collected data on 183 patients with inherited bleeding disorders infected with HCV who attended the Coagulation Unit at Karolinska University Hospital, Sweden...
October 5, 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
Rashid Haidarimoghadam, Reza Kazemi, Majid Motamedzadeh, Rostam Golmohamadi, Alireza Soltanian, Mohamad Reza Zoghipaydar
INTRODUCTION: The aim of this study was to evaluate the effects of consecutive night shifts (CNS) and shift length (SL) on cognitive performance and sleepiness. MATERIALS AND METHODS: This study evaluated the sleepiness and performance of 30 control rooms operators (CROs) working in a 7 nights, 7 days, 7 days off (7N7D7O) and 30 CROs working in a 4 nights, 7 days, 3 nights, 7 days off (4N7D3N7O) shift pattern in a petrochemical complex in the last night shift before swinging into the day shift...
October 4, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
Helena Hognert, Helena Kopp Kallner, Sharon Cameron, Christina Nyrelli, Izabella Jawad, Rebecca Heller, Annette Aronsson, Ingela Lindh, Lina Benson, Kristina Gemzell-Danielsson
STUDY QUESTION: Does a progestin releasing subdermal contraceptive implant affect the efficacy of medical abortion if inserted at the same visit as the progesterone receptor modulator, mifepristone, at medical abortion? SUMMARY ANSWER: A etonogestrel releasing subdermal implant inserted on the day of mifepristone did not impair the efficacy of the medical abortion compared with routine insertion at 2-4 weeks after the abortion. WHAT IS ALREADY KNOWN: The etonogestrel releasing subdermal implant is one of the most effective long acting reversible contraceptive methods...
September 22, 2016: Human Reproduction
Margo J van den Berg, Lora J Wu, Philippa H Gander
BACKGROUND: This study examined whether subjective measurements of in-flight sleep could be a reliable alternative to actigraphic measurements for monitoring pilot fatigue in a large-scale survey. METHODS: Pilots (3-pilot crews) completed a 1-page survey on outbound and inbound long-haul flights crossing 1-7 time zones (N = 586 surveys) between 53 city pairs with 1-d layovers. Across each flight, pilots documented flight start and end times, break times, and in-flight sleep duration and quality if they attempted sleep...
2016: Aerospace Medicine and Human Performance
Olafur Arni Sveinsson, Ingvar H Olafsson, Einar Mar Valdimarsson
UNLABELLED: Cerebral arteriovenous malformations (AVMs) are uncommon but can cause intracerebral hemorrhage with grave disability or death. AVMs can even cause focal neurological symptoms, seizures and headache. The treatment of AVMs is complex. The most common treatment forms are microsurgery, stereotactic radiotherapy and endovascular embolization. The best treatment in each case can include a combination of the mentioned treatment forms. New studies indicate that no intervention is the best option in unruptured AVMs...
September 2016: Læknablađiđ
Ghazi Chammout, Olle Muren, Henrik Bodén, Mats Salemyr, Olof Sköldenberg
BACKGROUND: Total hip replacement (THR) is the preferred method for the active and lucid elderly patient with a displaced femoral neck fracture (FNF). But controversy still exists regarding using cemented or uncemented stem in these patients. The aim of this study is to compare a cemented and uncemented femoral stem in patients 65-79 years treated surgically with THR for displaced FNF. METHODS/DESIGN: In a single-centre, single-blinded, randomized controlled trial, we will include 140 patients aged 65-79 years with an acute displaced FNF and randomize them in a 1:1 ratio to a cemented tapered or a uncemented tapered hydroxyapatite - coated femoral stem...
September 20, 2016: BMC Musculoskeletal Disorders
Glenn Legault, Alexandra Clement, Glen P Kenny, Stephen Hardcastle, Nancy Keller
Sleep deprivation, abnormal sleep patterns arising from working rotating shifts, and exposure to high ambient temperatures contribute to physical and cognitive dysfunction. We examined the effects of these on 19 (41.5 ± 5.1 years) male underground miners. Data were collected for 28 to 30 consecutive days such that the participants experienced their full rotating shift schedule, including days off. Objective measures of sleep quality (actigraphy), attentional capacity (psychomotor vigilance task), core body temperature (visceral pill), executive function (BRIEF-A) and subjective measures of fatigue (Karolinska and Epworth Sleepiness scales) were obtained over the 28-30 day period...
January 2017: Applied Ergonomics
Diana M Rydberg, Lennart Holm, Ida Engqvist, Jessica Fryckstedt, Jonatan D Lindh, Carl-Olav Stiller, Charlotte Asker-Hagelberg
PURPOSE: To identify the prevalence and preventability of adverse drug reactions (ADRs) in an emergency ward setting in a tertiary hospital in Sweden and to what extent the detected ADRs were reported to the Medical Product Agency (MPA). METHODS: In this prospective cross sectional observational study, 706 patients admitted to one of the Emergency Wards, at the Karolinska University Hospital in Solna, Stockholm during September 2008 -September 2009, were included...
2016: PloS One
Nigel Hawkes
No abstract text is available yet for this article.
2016: BMJ: British Medical Journal
Funda Orhan, Maria Bhat, Kristian Sandberg, Sara Ståhl, Fredrik Piehl, Camilla Svensson, Sophie Erhardt, Lilly Schwieler
Tryptophan degradation along the kynurenine pathway is of central importance for the immune function. Toll-like receptors (TLRs), representing the first line of immune defense against pathogens, are expressed in various cell types. The most abundant expression is found on monocytes, macrophages and dendritic cells. The aim of the present study is to investigate if stimulation with different TLR ligands induces the kynurenine pathway in human peripheral monocytes. Cell supernatants were analyzed using a liquid chromatography/mass spectrometry to measure kynurenine, kynurenic acid (KYNA), quinolinic acid (QUIN) and tryptophan...
September 8, 2016: Scandinavian Journal of Immunology
(no author information available yet)
No abstract text is available yet for this article.
September 6, 2016: Nature
Eric Peter Thelin, Emma Jeppsson, Arvid Frostell, Mikael Svensson, Stefania Mondello, Bo-Michael Bellander, David W Nelson
BACKGROUND: In order to improve assessment and outcome prediction in patients suffering from traumatic brain injury (TBI), cerebral protein levels in serum have been suggested as biomarkers of injury. However, despite much investigation, biomarkers have yet to reach broad clinical utility in TBI. This study is a 9-year follow-up and clinical experience of the two most studied proteins, neuron-specific enolase (NSE) and S100B, in a neuro-intensive care TBI population. Our aims were to investigate to what extent NSE and S100B, independently and in combination, could predict outcome, assess injury severity, and to investigate if the biomarker levels were influenced by extracranial factors...
September 8, 2016: Critical Care: the Official Journal of the Critical Care Forum
F Gentile, G Lundberg, R Hultgren
OBJECTIVE/BACKGROUND: To describe the risk factor distribution and outcome for patients with critical limb ischemia (CLI) due to infrapopliteal arterial lesions treated by endovascular or open procedures, with special consideration of diabetic patients. METHODS: Data were collected from the Swedish Vascular Registry, Swedvasc, covering all procedures performed on 549 consecutive patients between May 2008 and January 2014 at the Karolinska University Hospital. Diagnosis of ischemic rest pain and/or tissue loss and treatment of infrapopliteal arterial occlusive disease were considered...
September 1, 2016: European Journal of Vascular and Endovascular Surgery
Nigel Hawkes
No abstract text is available yet for this article.
2016: BMJ: British Medical Journal
Samy A Azer
INTRODUCTION: The citations received by a scientific publication have been used as a proxy measurement of scientific quality and in ranking researchers. Although these practices have been observed in several institutes, careful assessment of top-cited articles may provide more insight into exploring their characteristics. The aim of this study was to analyze the top-cited articles in medical education identified by Azer 2015 and explore the characteristics of these articles that can provide insight into their assessment...
2016: Journal of Continuing Education in the Health Professions
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