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https://www.readbyqxmd.com/read/28343681/ultrasound-evaluation-of-diaphragm-function-and-its-application-in-critical-patients-mechanical-ventilation-and-brachial-plexus-block
#1
F de B de la Quintana Gordon, B Nacarino Alcorta, M Fajardo Pérez
Before diaphragm ultrasonography, assessment of diaphragm function was very difficult due to the complex nature of its exploration. The use of this new technique has shed light on diagnostic problems and treatment with an improvement in final outcomes for critically ill patients, in whom the incidence of diaphragm weakness or dysfunction has been underestimated. Better knowledge of diaphragm function enables us earlier diagnosis by quantification of diaphragm contractile activity or evaluation of functional status after delivery of plexus block anaesthesia, facilitating therapeutic decisions...
March 23, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28342663/intramural-coronary-hematoma-a-complex-three-dimensional-entity-multimodality-assessment
#2
Iván J Núñez-Gil, Mauro Echavarría-Pinto, Gisela Feltes, Antonio Fernández-Ortiz
A 62-year-old woman was admitted with chest pain of two hours' duration, ECG changes in the precordial leads and left ventricular ejection fraction of 30% on the echocardiogram. Emergent catheterization demonstrated severe flow disturbance in the left coronary artery. An intra-aortic balloon pump and a drug-eluting stent were implanted. However, the flow disturbance persisted. Optical coherence tomography followed by intravascular ultrasound provided crucial data on the mechanism and helped to optimize treatment in this critical patient...
March 22, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28340911/ultrasound-guided-vascular-cannulation-in-critical-care-patients-a-practical-review
#3
P Blanco
Vascular cannulation is common practice in critical care, and is traditionally performed using the landmark technique - though failures and complications are not uncommon. In this regard, ultrasound guided vascular cannulation (USGVC) has been shown to improve the procedure success rate and reduce its associated complications. This review addresses the fundamental aspects of USGVC and discusses some training issues related to this technique which is currently regarded as essential for intensivists.
December 2016: Medicina Intensiva
https://www.readbyqxmd.com/read/28339186/quantum-chemical-strain-analysis-for-mechanochemical-processes
#4
Tim Stauch, Andreas Dreuw
The use of mechanical force to initiate a chemical reaction is an efficient alternative to the conventional sources of activation energy, i.e., heat, light, and electricity. Applications of mechanochemistry in academic and industrial laboratories are diverse, ranging from chemical syntheses in ball mills and ultrasound baths to direct activation of covalent bonds using an atomic force microscope. The vectorial nature of force is advantageous because specific covalent bonds can be preconditioned for rupture by selective stretching...
March 24, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28338811/interventions-for-the-prevention-and-treatment-of-disability-due-to-acquired-joint-contractures-in-older-people-a-systematic-review
#5
Susanne Saal, Katrin Beutner, Julia Bogunski, Kathrin Obermüller, Martin Müller, Eva Grill, Gabriele Meyer
Background: acquired joint contractures have significant effects on quality of life and functioning. Objective: to determine the effects of interventions to prevent and treat disabilities in older people with acquired joint contractures. Methods: systematic search (last 8/2016) via Cochrane Library, PubMed, EMBASE, PEDro, CINAHL, trial registries, reference lists of retrieved articles and scientific congress pamphlets. Controlled and randomised controlled trials in English or German comparing an intervention with another intervention or standard care were included...
February 25, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28338392/the-effects-of-low-intensity-therapeutic-ultrasound-litus-on-measurable-outcomes-a-critically-appraised-topic
#6
Sarah Daniels, Gabriela Santiago, Jennifer Cuchna, Bonnie Van Lunen
Therapeutic Ultrasound (US) is a popular modality among healthcare professionals and is used to treat a variety of musculoskeletal conditions.(1) Throughout the past 70 years of clinical use,(2) ultrasound has been shown to be an effective way to decrease pain,(2,3) increase tissue temperature,(4) and decrease tissue stiffness of trigger points,(5) amidst other benefits. Treatment parameters with US are typically high-intensity and occur over a short period of time (minutes). The US machine is large and stationary, forcing patients to be non-mobile for the duration of their treatment...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28338071/phase-transition-nanodroplets-for-real-time-photoacoustic-ultrasound-dual-modality-imaging-and-photothermal-therapy-of-sentinel-lymph-node-in-breast-cancer
#7
Lu Yang, Juan Cheng, Yuli Chen, Shengjie Yu, Fengqiu Liu, Yang Sun, Yu Chen, Haitao Ran
Pathological status of lymph nodes (LNs) plays a critical role in staging and treatment for the patients with breast cancer. Sentinel lymph node biopsy has become the standard method in determining pathological status of axillary LNs. Therefore, the determination of sentinel lymph nodes (SLNs) and therapy of metastatic LNs are highly desirable in clinic. Herein, an unprecedented carbon nanoparticles (CNs)-incorporated liquid-gas phase-transition nanodroplets (CNPs) with strong near-infrared (NIR) absorption, good biocompatibility, excellent photoacoustic (PA) and ultrasound (US) contrast, and high photothermal-conversion efficiency are reported in this study...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333301/preconception-maternal-lipoprotein-levels-in-relation-to-fecundability
#8
Sarah J Pugh, Enrique F Schisterman, Richard W Browne, Anne M Lynch, Sunni L Mumford, Neil J Perkins, Robert Silver, Lindsey Sjaarda, Joseph B Stanford, Jean Wactawski-Wende, Brian Wilcox, Katherine L Grantz
STUDY QUESTION: Are maternal preconception lipid levels associated with fecundability? SUMMARY ANSWER: Fecundability was reduced for all abnormal female lipid levels including total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and total triglyceride levels. WHAT IS KNOWN ALREADY: Subfecundity affects 7-15% of the population and lipid disorders are hypothesized to play a role since cholesterol acts as a substrate for the synthesis of steroid hormones...
March 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332158/first-clinical-use-of-the-echotrack-guidance-approach-for-radiofrequency-ablation-of-thyroid-gland-nodules
#9
Alfred Michael Franz, Alexander Seitel, Nasrin Bopp, Christian Erbelding, Dominique Cheray, Stefan Delorme, Frank Grünwald, Hüdayi Korkusuz, Lena Maier-Hein
PURPOSE: Percutaneous radiofrequency ablation (RFA) of thyroid nodules is an alternative to surgical resection that offers the benefits of minimal scars for the patient, lower complication rates, and shorter treatment times. Ultrasound (US) is the preferred modality for guiding these procedures. The needle is usually kept within the US scanning plane to ensure needle visibility. However, this restricts flexibility in both transducer and needle movement and renders the procedure difficult, especially for inexperienced users...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28331537/combined-totally-mini-invasive-approach-in-necrotizing-pancreatitis-a-case-report-and-systematic-literature-review
#10
REVIEW
Luca Sorrentino, Osvaldo Chiara, Massimiliano Mutignani, Fabrizio Sammartano, Paolo Brioschi, Stefania Cimbanassi
BACKGROUND: Currently, both the step-up approach, combining percutaneous drainage (PD) and video-assisted retroperitoneal debridement (VARD), and endoscopic transgastric necrosectomy (ETN) are mini-invasive techniques for infected necrosis in severe acute pancreatitis. A combination of these approaches could maximize the management of necrotizing pancreatitis, conjugating the benefits from both the experiences. However, reporting of this combined strategy is anecdotal. This is the first reported case of severe necrotizing pancreatitis complicated by biliary fistula treated by a combination of ETN, PD, VARD, and endoscopic biliary stenting...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28320362/early-dynamic-ultrasound-for-neonatal-hip-instability-implications-for-rural-australia
#11
Susan L Charlton, Adrian Schoo, Lucie Walters
BACKGROUND: Neonatal instability of the hip (NIH), where the femoral head can move away from the acetabulum, in the first weeks of life, is an important risk factor for developmental dysplasia of the hip (DDH). In rural areas in Australia, there is a recent trend to increased late diagnosis of DDH. Clinical screening of infant hips, a common practice in Australia, is experience dependent. Best practice early screening techniques are still debated with different techniques and timing used internationally...
March 21, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28303674/simultaneous-recording-of-ultrasound-and-polysomnography-during-natural-sleep-in-patients-with-obstructive-sleep-apnea-a-pilot-study
#12
Jeng-Wen Chen, Chih-Chung Huang, Chi-Kai Weng, Chun-Hsiang Chang, Shou-Jen Wang
Tongue base deformation may play a critical role in the phenomenon of obstructive sleep apnea, but polysomnography provides limited information regarding the effect of tongue motion during natural sleep. We reported on preliminary results of combining a novel ultrasound system and polysomnography for simultaneous recordings during natural sleep in volunteers and patients with obstructive sleep apnea. All participants underwent time-synchronized polysomnography and submental transcutaneous ultrasound examinations...
March 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28301597/boiling-histotripsy-lesion-characterization-on-a-clinical-magnetic-resonance-imaging-guided-high-intensity-focused-ultrasound-system
#13
Avinash Eranki, Navid Farr, Ari Partanen, Karun V Sharma, Hong Chen, Christopher T Rossi, Satya V V N Kothapalli, Matthew Oetgen, AeRang Kim, Ayele H Negussie, David Woods, Bradford J Wood, Peter C W Kim, Pavel S Yarmolenko
PURPOSE: High intensity focused ultrasound (HIFU) is a non-invasive therapeutic technique that can thermally ablate tumors. Boiling histotripsy (BH) is a HIFU approach that can emulsify tissue in a few milliseconds. Lesion volume and temperature effects for different BH sonication parameters are currently not well characterized. In this work, lesion volume, temperature distribution, and area of lethal thermal dose were characterized for varying BH sonication parameters in tissue-mimicking phantoms (TMP) and demonstrated in ex vivo tissues...
2017: PloS One
https://www.readbyqxmd.com/read/28299589/respiratory-variation-in-peak-aortic-velocity-accurately-predicts-fluid-responsiveness-in-children-undergoing-neurosurgery-under-general-anesthesia
#14
Kavita G Morparia, Srijaya K Reddy, Laura J Olivieri, Michael C Spaeder, Jennifer J Schuette
The determination of fluid responsiveness in the critically ill child is of vital importance, more so as fluid overload becomes increasingly associated with worse outcomes. Dynamic markers of volume responsiveness have shown some promise in the pediatric population, but more research is needed before they can be adopted for widespread use. Our aim was to investigate effectiveness of respiratory variation in peak aortic velocity and pulse pressure variation to predict fluid responsiveness, and determine their optimal cutoff values...
March 16, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28299267/postsurgical-consequences-in-lower-third-molar-surgical-extraction-using-micromotor-and-piezosurgery
#15
Freddy Kersi Mistry, Nidarsh Diwakar Hegde, Mithra Nidarsh Hegde
BACKGROUND: One of the most critical and crucial steps in surgical extraction is cutting the bone or osteotomy, for which many techniques are used, e.g., chisels and mallet, rotary instruments, and ultrasound bone-cutting instruments. If they are not used judiciously, they can be hazardous. OBJECTIVES: To assess the efficiency of piezosurgery unit over micromotor while performing surgical extraction of lower third molars by assessing the time taken for the surgery and measuring postoperative parameters such as pain, trismus, and swelling...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28298944/4-point-ultrasonography-to-confirm-the-correct-position-of-the-nasogastric-tube-in-114-critically-ill-patients
#16
Marianna Zatelli, Norberto Vezzali
PURPOSE: Nasogastric feeding tube is routinely positioned in intensive care units. The complications of misplacement are rare but very dangerous for the patients. The aim of this study is to estimate the diagnostic accuracy of this new technique, 4-point ultrasonography to confirm nasogastric tube placement in intensive care. METHODS: One hundred fourteen critical ill patients monitored in ICU were included. The intensivist provided in real time to perform the exam in four steps: sonography from either the right or left side of the patient's neck to visualize the esophagus, sonography of epigastrium to confirm the passage through the esophagogastric junction and the positioning in antrum, sonography of the fundus...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28297827/-application-of-bedside-ultrasound-in-measuring-gastric-residual-volume-in-neurosurgical-critical-patients-with-enteral-nutrition-support
#17
L Cao, X H Ye, J Li, L N Zhang, L Li, W Y Zhang, L L Deng
Objective: To explore the effect of bedside ultrasound in measuring gastric residual volume in neurosurgical critical patients with enteral nutrition support. Method: From March to August 2016, 70 critically neurological patients with continues enteral nutrition who admitted in Intensive Care Unit (ICU) were randomized into two groups. The observation group applied the bedside ultrasound monitoring gastric residual volume every day to guide the implementation of enteral nutrition. The control group used syringes withdrawing every 8 hours to measure the gastric residual volume...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28291455/measuring-hemodynamic-changes-in-the-ophthalmic-artery-during-applied-force-for-noninvasive-intracranial-pressure-monitoring-test-results-in-a-porcine-model
#18
Max Twedt, Chase Pfeifer, William Thorell, Greg Bashford
Possible traumatic brain injury victims would greatly benefit from a handheld, noninvasive intracranial pressure (ICP) monitoring tool, which a medic could operate in a remote area. Such a device would also benefit the transport of injured soldiers during en route medical care and critical care air transport. This study demonstrates the use of noninvasive blood flow measurements in the eye by ultrasound as a proxy for ICP. ICP was artificially raised in a porcine model and resultant blood flow change in the ophthalmic artery was measured...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28289637/ultrasonography-evaluation-of-vulnerable-vessels-around-cervical-nerve-roots-during-selective-cervical-nerve-root-block
#19
Hoon Hoon Lee, Donghwi Park, Yoongul Oh, Ju Seok Ryu
OBJECTIVE: To evaluate the prevalence of vulnerable blood vessels around cervical nerve roots before cervical nerve root block in the clinical setting. METHODS: This retrospective study included 74 patients with cervical radiculopathy who received an ultrasonography-guided nerve block at an outpatient clinic from July 2012 to July 2014. Before actual injection of the steroid was performed, we evaluated the vulnerable blood vessels around each C5, C6, and C7 nerve root of each patient's painful side, with Doppler ultrasound...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28288599/clinical-use-of-computational-modeling-for-surgical-planning-of-arteriovenous-fistula-for-hemodialysis
#20
Michela Bozzetto, Stefano Rota, Valentina Vigo, Francesco Casucci, Carlo Lomonte, Walter Morale, Massimo Senatore, Luigi Tazza, Massimo Lodi, Giuseppe Remuzzi, Andrea Remuzzi
BACKGROUND: Autogenous arteriovenous fistula (AVF) is the best vascular access (VA) for hemodialysis, but its creation is still a critical procedure. Physical examination, vascular mapping and doppler ultrasound (DUS) evaluation are recommended for AVF planning, but they can not provide direct indication on AVF outcome. We recently developed and validated in a clinical trial a patient-specific computational model to predict pre-operatively the blood flow volume (BFV) in AVF for different surgical configuration on the basis of demographic, clinical and DUS data...
March 14, 2017: BMC Medical Informatics and Decision Making
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