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https://www.readbyqxmd.com/read/29151003/lung-ultrasound-in-the-critically-ill-luci-a-translational-discipline
#1
Daniel A Lichtenstein, Manu L N G Malbrain
In the early days of ultrasound, it was not a translational discipline. The heart was claimed by cardiologists, with others, such as gynaecologists, urologists and vascular surgeons claiming their part while the rest was given to radiologists. Only recently, ultrasound transgressed and crossed the usual borders between the different disciplines, such as emergency and critical care medicine. The advent of portable machines in the early 1980s, allowed the critical care physician to perform bedside ultrasound, and the development of whole body critical care ultrasound (CCUS) was born...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29150795/navigated-3d-ultrasound-versus-conventional-neuronavigation-during-awake-resections-of-eloquent-low-grade-gliomas-a-comparative-study-at-a-single-institution
#2
Andrej Šteňo, Vladimír Hollý, Peter Mendel, Veronika Šteňová, Ľubica Petričková, Gabriela Timárová, Michaela Jezberová, Víťazoslav Belan, Boris Rychlý, Jozef Šurkala, Juraj Šteňo
BACKGROUND: The data showing usefulness of navigated 3D-ultrasound (3DUS) during awake resections of eloquent gliomas are sparse. Results of surgeries performed using 3DUS were never compared to procedures guided by standard neuronavigation. The aim of this work is to assess the effectiveness of 3DUS during awake resections of eloquent low-grade gliomas (LGGs) by comparing surgical results of two series of patients operated on using conventional neuronavigation and using 3DUS. To our knowledge, a similar study is lacking in the literature...
November 17, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29150470/platelet-rich-plasma-in-achilles-tendon-healing-2-path-2-trial-protocol-for-a-multicentre-participant-and-assessor-blinded-parallel-group-randomised-clinical-trial-comparing-platelet-rich-plasma-prp-injection-versus-placebo-injection-for-achilles-tendon-rupture
#3
Joseph Alsousou, David J Keene, Philippa A Hulley, Paul Harrison, Susan Wagland, Christopher Byrne, Michael Maia Schlüssel, Susan J Dutton, Sarah E Lamb, Keith Willett
BACKGROUND: Achilles tendon injuries give rise to substantial long-lasting morbidity and pose considerable challenges for clinicians and patients during the lengthy healing period. Current treatment strategies struggle to curb the burden of this injury on health systems and society due to lengthy rehabilitation, work absence and reinjury risk. Platelet-rich plasma (PRP) is an autologous preparation that has been shown to improve the mechanobiological properties of tendons in laboratory and animal studies...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150458/diagnostic-accuracy-of-neonatal-assessment-for-gestational-age-determination-a-systematic-review
#4
REVIEW
Anne Cc Lee, Pratik Panchal, Lian Folger, Hilary Whelan, Rachel Whelan, Bernard Rosner, Hannah Blencowe, Joy E Lawn
CONTEXT: An estimated 15 million neonates are born preterm annually. However, in low- and middle-income countries, the dating of pregnancy is frequently unreliable or unknown. OBJECTIVE: To conduct a systematic literature review and meta-analysis to determine the diagnostic accuracy of neonatal assessments to estimate gestational age (GA). DATA SOURCES: PubMed, Embase, Cochrane, Web of Science, POPLINE, and World Health Organization library databases...
November 17, 2017: Pediatrics
https://www.readbyqxmd.com/read/29150367/ileocolic-intussusception-predicting-the-probability-of-success-of-ultrasound-guided-saline-enema-from-clinical-and-sonographic-data
#5
REVIEW
A Soria, L Riaza, D Cuadras, X Tarrado, L Krauel
BACKGROUND/PURPOSE: To identify factors that dim the efficacy of ultrasound guided saline enema (USGSE) and to design a mathematical model for predicting the probability of success of USGSE. METHODS: Retrospective review of patients admitted with the diagnosis of ileocolic intussusception from 2009 to 2014. Demographics, clinical and sonographic data were reviewed. RESULTS: 116 first episodes of ileocolic intussusceptions. 109 USGSE attempts were analyzed...
November 14, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29150366/optimal-ultrasound-criteria-for-grading-stenosis-of-the-superficial-femoral-artery
#6
Mingjie Gao, Yang Hua, Xinyu Zhao, Lingyun Jia, Jie Yang, Beibei Liu
This retrospective study determined the duplex ultrasound scanning criteria for detecting 50%-69% and 70%-99% stenosis of the superficial femoral artery (SFA). Examinations of 278 limbs in 185 patients with peripheral arterial disease were performed. Duplex ultrasound scanning was used to measure the diameter of the vascular lumen, the peak systolic velocity (PSV) at the stenotic segment of the SFA (PSVst), the segment proximal to the stenosis (PSVpro) and the popliteal artery (PSVpop, distal to the stenosis)...
November 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29150365/correlation-between-ultrasound-appearance-of-small-breast-cancer-and-axillary-lymph-node-metastasis
#7
Xiaoqin Yu, Xiaoyan Hao, Jing Wan, Yingying Wang, Lan Yu, Binyue Liu
To study the correlation of ultrasonographic signs of small breast cancer (maximum diameter ≤2.0 cm) with axillary lymph node metastasis, pre-operative ultrasonographic images of 153 small breast malignant neoplasms in 143 breast cancer patients were analyzed according to their pathologic features. Of the small breast tumors included, 47 showed axillary lymph node metastasis. Diagnosis of all patients was obtained with radical axillary surgery or a sentinel lymph node biopsy procedure. Ultrasonographic signs included irregular shape, microlobulated contour, spiculation, microcalcification, posterior echo attenuation, blood-flow grade, perforating vessels, changes in fascia or cooper's ligament and maximum cortical thickness of lymph nodes...
November 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29150363/development-of-a-3-french-dual-frequency-intravascular-ultrasound-catheter
#8
Chelsea E Munding, Emmanuel Chérin, Isaac Jourard, Jill J Weyers, David E Goertz, Brian K Courtney, F Stuart Foster
Coronary plaque morphology, including plaque size and fibrous cap thickness, is thought to contribute to the risk of plaque rupture and future cardiac events. Dual-frequency intravascular ultrasound has been proposed as a possible technique to visualize both large-scale features and superficial detail of coronary plaque; however, it has not been found to be feasible within the constraints of a clinically functional intravascular ultrasound catheter. In this study, we describe the design and fabrication of a dual-frequency catheter using a bidirectional transducer stack with center frequencies of approximately 30 and 80 MHz...
November 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29150024/decreased-uchl1-expression-as-a-cytologic-biomarker-for-aggressive-behavior-in-pancreatic-neuroendocrine-tumors
#9
Maureen D Moore, Brendan Finnerty, Katherine D Gray, Rana Hoda, Yi-Fan Liu, Lauren Soong, Toni Beninato, Rema Rao, Rasa Zarnegar, Thomas J Fahey
BACKGROUND: There are currently no reliable markers associated with aggressive behavior in well-differentiated and moderately differentiated pancreatic neuroendocrine tumors. We aimed to determine whether expression of ubiquitin carboxyl-terminal hydrolase L1 in conjunction with Ki67 can identify metastatic potential of well-differentiated and moderately differentiated pancreatic neuroendocrine tumors from fine-needle aspiration samples obtained by endoscopic ultrasound. METHODS: Retrospective review of 48 patients with well-differentiated and moderately differentiated pancreatic neuroendocrine tumors diagnosed by endoscopic ultrasound fine-needle aspiration at a single center identified 35 biopsy samples with adequate material for analysis...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29149996/coupling-of-two-centrifugeless-ultrasound-assisted-dispersive-solid-liquid-phase-microextractions-as-a-highly-selective-clean-and-efficient-method-for-determination-of-ultra-trace-amounts-of-non-steroidal-anti-inflammatory-drugs-in-complicated-matrices
#10
Somayeh Arghavani-Beydokhti, Maryam Rajabi, Alireza Asghari
In this work, a new, simple, rapid, and environmentally friendly method with a high sample clean-up capability termed as centrifugeless ultrasound-assisted dispersive micro solid-phase extraction coupled with salting-out ultrasound-assisted liquid-liquid microextraction based on solidification of a floating organic droplet followed by high performance liquid chromatography is introduced for the first time. In this method, the three non-steroidal anti-inflammatory drugs diclofenac, ibuprofen, and mefenamic acid are first extracted based on an effective nanoadsorbent named as the layered double hydroxide-carbon nanotube nanohybrid...
January 2, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29149961/practice-variation-in-the-immediate-postoperative-care-of-pediatric-kidney-transplantation-a-national-survey
#11
S Abu-Sultaneh, M J Hobson, A C Wilson, W C Goggins, M E Nitu, R Lutfi
INTRODUCTION: Advances in organ allocation, surgical technique, immunosuppression, and long-term follow-up have led to a significant improvement in kidney transplant outcomes. Although there are clear recommendations for several aspects of kidney transplant management, there are no pediatric-specific guidelines for immediate postoperative care. The aim of this survey is to examine practice variations in the immediate postoperative care of pediatric kidney transplant patients. METHODS: We surveyed medical directors of Pediatric Acute Lung Injury and Sepsis Investigators (PALISI)-affiliated pediatric intensive care units regarding center-specific immediate postoperative management of pediatric kidney transplantation...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149950/structural-and-functional-adaptation-of-the-remnant-kidney-after-living-kidney-donation-long-term-follow-up
#12
M Meier, J Winterhoff, L Fricke, H Lehnert, M Nitschke
OBJECTIVE: Several adjustments occur after nephrectomy (NT) in the donor's remnant kidney. We investigated kidney donors 10 years after NT and compared several parameters before and after transplantation. METHODS: A total of 42 kidney donors of the University of Luebeck's Transplant Center were scheduled for a 10-year follow-up and were offered several investigations: laboratory tests, urinalysis and kidney ultrasound examination including determination of kidney volume (KV), resistive index (RI) and pulsatility index (PI)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149869/characterisation-of-sucking-dynamics-of-breastfeeding-preterm-infants-a-cross-sectional-study
#13
Donna T Geddes, Kok Chooi, Kathryn Nancarrow, Anna R Hepworth, Hazel Gardner, Karen Simmer
BACKGROUND: Full breastfeeding is the ultimate aim for preterm infants to ensure they receive the full benefits of human milk however, preterm infants face a number of challenges associated with their immaturity and associated morbidities. In order to facilitate oral feeding, it is essential to have a sound knowledge of the sucking dynamics of the breastfed infant. The aim of this study was to measure and describe the sucking dynamics of the preterm breastfeeding infant. METHODS: A prospective cross sectional observational study was carried out at King Edward Memorial Hospital, Perth...
November 17, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29149724/peri-ultrasound-modeling-for-surface-wave-propagation
#14
Mohammad Hadi Hafezi, Tribikram Kundu
The interaction between surface wave and a surface breaking crack is studied using a novel fast modeling tool called peri-ultrasound that can model both linear and nonlinear ultrasonic response. This modeling approach is based on peridynamic theory. In this study, the surface wave is modeled by applying a triangular pulse excitation function on the surface of a large structure. The particle movements are simulated on both sides of the surface crack to investigate transmitted and reflected fields. This investigation shows that: (1) the computed amplitude spectra of the Rayleigh wave agrees with the experimental observation; and (2) the structure containing a surface breaking crack shows noticeable increase in its nonlinear behavior...
November 7, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29149656/location-specific-mechanical-response-and-morphology-of-facial-soft-tissues
#15
Marco Pensalfini, Johannes Weickenmeier, Marga Rominger, Roberto Santoprete, Oliver Distler, Edoardo Mazza
The facial tissue of 9 healthy volunteers (m/f; age: 23-60y) is characterized at three different locations using a procedure combining suction measurements and 18MHz ultrasound imaging. The time-dependent and multilayered nature of skin is accounted for by adopting multiple loading protocols which differ with respect to suction probe opening size and rate of tissue deformation. Over 700 suction measurements were conducted and analyzed according to location-specific mechanical and morphological characteristics...
November 14, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29149376/reply-to-andronikou-and-sergot-point-of-care-ultrasound
#16
EDITORIAL
Øystein E Olsen
No abstract text is available yet for this article.
December 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29149156/survival-analysis-of-occipital-nerve-stimulator-leads-placed-under-fluoroscopic-guidance-with-and-without-ultrasonography
#17
James H Jones, Alison Brown, Daniel Moyse, Wenjing Qi, Lance Roy
BACKGROUND: Electrical stimulation of the greater occipital nerves is performed to treat pain secondary to chronic daily headaches and occipital neuralgia. The use of fluoroscopy alone to guide the surgical placement of electrodes near the greater occipital nerves disregards the impact of tissue planes on lead stability and stimulation efficacy. OBJECTIVE: We hypothesized that occipital neurostimulator (ONS) leads placed with ultrasonography combined with fluoroscopy would demonstrate increased survival rates and times when compared to ONS leads placed with fluoroscopy alone...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149143/efficacy-of-magnesium-sulfate-added-to-local-anesthetic-in-a-transversus-abdominis-plane-block-for-analgesia-following-total-abdominal-hysterectomy-a-randomized-trial
#18
Kelany A Abd-Elsalam, Khaled M Fares, Montaser A Mohamed, Mohamed F Mohamed, Ahmad M Abd El-Rahman, Moaaz M Tohamy
BACKGROUND: Major abdominal surgeries are associated with severe pain, which can affect respiratory and cardiac functions if insufficiently treated; this increases postoperative morbidity. OBJECTIVE: We aim at evaluating the efficacy of magnesium sulfate as an adjuvant to local anesthetic in an ultrasound-guided transversus abdominis plane (TAP) block for postoperative analgesia in total abdominal hysterectomy. STUDY DESIGN: A prospective, randomized, double-blinded clinical trial...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29148845/speech-recovery-and-language-plasticity-can-be-facilitated-by-sensori-motor-fusion-training-in-chronic-non-fluent-aphasia-a-case-report-study
#19
Célise Haldin, Audrey Acher, Louise Kauffmann, Thomas Hueber, Emilie Cousin, Pierre Badin, Pascal Perrier, Diandra Fabre, Dominic Perennou, Olivier Detante, Assia Jaillard, Hélène Lœvenbruck, Monica Baciu
The rehabilitation of speech disorders benefits from providing visual information which may improve speech motor plans in patients. We tested the proof of concept of a rehabilitation method (Sensori-Motor Fusion, SMF; Ultraspeech player) in one post-stroke patient presenting chronic non-fluent aphasia. SMF allows visualisation by the patient of target tongue and lips movements using high-speed ultrasound and video imaging. This can improve the patient's awareness of his/her own lingual and labial movements, which can, in turn, improve the representation of articulatory movements and increase the ability to coordinate and combine articulatory gestures...
November 17, 2017: Clinical Linguistics & Phonetics
https://www.readbyqxmd.com/read/29148713/wireless-acoustic-surface-actuators-for-miniaturized-endoscopes
#20
Tian Qiu, Fabian Adams, Stefano Palagi, Kai Melde, Andrew G Mark, Ulrich Wetterauer, Arkadiusz Miernik, Peer Fischer
Endoscopy enables minimally invasive procedures in many medical fields, such as urology. However, current endoscopes are normally cable-driven, which limits their dexterity and makes them hard to miniaturize. Indeed current urological endoscopes have an outer diameter of about 3 mm and still only possess one bending degree of freedom. In this paper, we report a novel wireless actuation mechanism that increases the dexterity and that permits the miniaturization of a urological endoscope. The novel actuator consists of thin active surfaces that can be readily attached to any device and are wirelessly powered by ultrasound...
November 17, 2017: ACS Applied Materials & Interfaces
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