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Ultrasound guidance

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https://www.readbyqxmd.com/read/28526487/ultrasound-guided-thoracic-paravertebral-injection-in-dogs-a-cadaveric-study
#1
Diego A Portela, Luis Campoy, Pablo E Otero, Manuel Martin-Flores, Robin D Gleed
OBJECTIVE: To describe ultrasound-visualized anatomy and the spread characteristics of a dye injected in the thoracic paravertebral (TPV) space under ultrasound guidance. STUDY DESIGN: Anatomic cadaver study. ANIMALS: Seven dog cadavers. METHODS: One cadaver was used to observe, identify, and describe the relevant TPV anatomy. In the remaining six, the left fifth TPV space was randomly assigned to be injected with either a low volume (LV; 0...
February 16, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28523061/duel-stage-treatment-for-biliary-cysts-with-cholangitis-during-pregnancy
#2
Baoxing Jia, Ludong Tan, Zhe Jin, Yahui Liu
BACKGROUND & OBJECTIVE: Biliary cysts in pregnant women are a complex medical issue, especially when complicated with cholangitis. It is a serious and life-threatening diagnosis that can seriously endanger both the expectant mother and the fetus. However, during pregnancy, surgical treatment would lead to further complications and higher fetal mortality. Here, we propose a novel therapeutic approach that would be safe for both mother and child during pregnancy, with a definitive treatment postponed until after delivery...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28516808/implication-of-foam-sclerosant-inactivation-by-human-whole-blood-in-a-laboratory-setting
#3
Emma B Dabbs, Scott J Dos Santos, Laurensius E Mainsiouw, Alina A Sheikh, Alexis Gkantiragas, Irenie Shiangoli, Mike R Watkins, Jaya L Nemchand, Mark S Whiteley
Background During sclerotherapy, it has been recommended to confirm intravenous placement of the needle by aspirating blood into the sclerosant syringe. This may inactivate some, or all of the sclerosant. Aims To quantify the volume of human blood needed to completely inactivate 1 ml of sodium tetradecyl sulphate, and comparing fresh blood and blood that has been stored in an ethylenediaminetetraacetic acid tube. Methods A series of manual titrations were carried out following a procedure developed at STD Pharmaceutical Products Ltd (Hereford, UK) and listed in the British Pharmacopeia...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28515854/determinants-of-percutaneous-coronary-intervention-success-in-repeat-chronic-total-occlusion-procedures-following-an-initial-failed-attempt
#4
Cecilia Cuevas, Nicola Ryan, Alicia Quirós, Juan Gustavo Del Angel, Nieves Gonzalo, Pablo Salinas, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Ivan Nuñez-Gil, Antonio Fernandez-Ortiz, Carlos Macaya, Javier Escaned
AIM: To investigate the rates and determinants of success of repeat percutaneous coronary intervention (PCI) following an initial failed attempt at recanalising the chronic total occlusions (CTO) percutaneously. METHODS: In 445 consecutive first attempt CTO-PCI procedures in our institution, procedural failure occurred in 149 (33.5%). Sixty-four re-PCI procedures were performed in 58 patients (39%) all had a single CTO. Procedural and outcome data in the re-PCI population was entered into the institutional database...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28509710/ultrasound-guided-pericardiocentesis-a-novel-parasternal-approach
#5
Adi Osman, Tan Wan Chuan, Jamalludin Ab Rahman, Gabriele Via, Guido Tavazzi
OBJECTIVE: The aim of this study was to evaluate a novel pericardiocentesis technique using an in-plane parasternal medial-to-lateral approach with the use of a high-frequency probe in patients with cardiac tamponade. BACKGROUND: Echocardiography is pivotal in the diagnosis of pericardial effusion and tamponade physiology. Ultrasound guidance for pericardiocentesis is currently considered the standard of care. Several approaches have been described recently, which differ mainly on the site of puncture (subxiphoid, apical, or parasternal)...
May 15, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28508759/mri-trus-fusion-for-electrode-positioning-during-irreversible-electroporation-for-treatment-of-prostate-cancer
#6
Alexander D J Baur, Federico Collettini, Judith Enders, Andreas Maxeiner, Vera Schreiter, Carsten Stephan, Bernhard Gebauer, Bernd Hamm, Thomas Fischer
We aimed to introduce an approach for image-guided positioning of electrodes for irreversible electroporation (IRE) in patients with prostate cancer using a magnetic resonance imaging-transrectal ultrasonography (MRI-TRUS) fusion technique. In 10 consecutive patients with biopsy-proven Gleason score ≤3+4 prostate cancer, 19 G electrodes were inserted into the prostate using a transperineal access. Magnetic resonance images of the prostate acquired before IRE were fused with transrectal ultrasound images acquired during IRE...
May 15, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28507578/lobular-carcinoma-in-situ-of-the-breast-correlation-between-minimally-invasive-biopsy-and-final-pathology
#7
Bartłomiej Szynglarewicz, Piotr Kasprzak, Agnieszka Hałoń, Rafał Matkowski
INTRODUCTION: Lobular carcinoma in situ (LCIS) is regarded as a non-obligate precursor of invasive breast cancer (IBC). Hence, the optimal management of LCIS found on minimally invasive breast biopsy remains a subject of debate. The aim of this study was to evaluate the correlation of biopsy findings with postoperative histology and to identify risk factors for upstaging to IBC. MATERIAL AND METHODS: Twenty-seven patients with pure LCIS diagnosed on image-guided biopsy (vacuum-assisted or core-needle) underwent subsequent surgery...
April 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28504955/three-dimensional-intravascular-reconstruction-techniques-based-on-intravascular-ultrasound-a-technical-review
#8
Chaoyang Shi, Xiongbiao Luo, Jin Guo, Zoran Najdovski, Toshio Fukuda, Hongliang Ren
Intravascular ultrasound (IVUS) imaging provides two-dimensional (2D) real-time luminal and transmural cross-sectional images of intravascular vessels with detailed pathological information. It has offered significant advantages in terms of diagnosis and guidance and has been increasingly introduced from coronary interventions into more generalized endovascular surgery. However, IVUS itself does not provide spatial pose information for its generated images, making it difficult to construct a 3D intravascular visualization...
May 12, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28502599/a-novel-retrieval-technique-for-ureteral-stents-under-ultrasound-guidance-in-male-patients
#9
Taile Jing, Chao Zhang, Lei Jiang
OBJECTIVE: To simply retrieve Double-J stents in male patients under ultrasound guidance, a novel technique is developed and evaluated for efficiency, safety and tolerability. MATERIALS AND METHODS: Fifty-six male patients, ranging from 23 to 65 years old, were recruited from March to December 2015. Thirty patients (32 stents) underwent Double-J retrieval by ultrasound-guided and 26 patients (28 stents) underwent cystoscopy retrieval separately. Clinical outcomes were compared between groups...
May 10, 2017: Urology
https://www.readbyqxmd.com/read/28500566/an-update-on-addressing-important-peripheral-nerve-problems-challenges-and-potential-solutions
#10
Wilson Z Ray, Mark A Mahan, Danzhu Guo, Danqing Guo, Michel Kliot
From time to time it is thoughtful and productive to review a medical field and reflect upon what are the major issues that need to be addressed and what is being done to do so. This review article is not meant to be all-inclusive but rather focuses on four evolving areas in the field of peripheral nerve disorders and treatments: (1) nerve surgery under ultrasound guidance using a new ultra-minimally invasive thread technique; (2) evolving magnetic resonance imaging (MRI) and ultrasound imaging techniques that are helping to both diagnose and treat a variety of peripheral nerve problems including entrapment neuropathies, traumatic nerve injuries, and masses arising from nerves; (3) promoting recovery after nerve injury using electrical stimulation; and (4) developing animal models to reproduce a severe nerve injury (neurotmetic grade in continuity) that requires a surgical intervention and repair...
May 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28500486/tips-and-tricks-for-a-safe-and-effective-image-guided-percutaneous-renal-tumour-ablation
#11
REVIEW
Giovanni Mauri, L Nicosia, G M Varano, G Bonomo, P Della Vigna, L Monfardini, F Orsi
Image-guide thermal ablations are nowadays increasingly used to provide a minimally invasive treatment to patients with renal tumours, with reported good clinical results and low complications rate. Different ablative techniques can be applied, each with some advantages and disadvantages according to the clinical situation. Moreover, percutaneous ablation of renal tumours might be complex in cases where there is limited access for image guidance or a close proximity to critical structures, which can be unintentionally injured during treatment...
May 12, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28499830/implementation-of-a-systematic-culturing-program-to-monitor-efficacy-of-endoscope-reprocessing-outcomes-and-costs
#12
Gene K Ma, David A Pegues, Michael L Kochman, Kevin Alby, Neil O Fishman, Marianne Saunders, Carolyn Grous, Daniel T Dempsey, Gregory G Ginsberg
BACKGROUND AND AIMS: In 2015, the U.S. Food and Drug Administration and Centers for Disease Control and Prevention (CDC) issued guidance for duodenoscope culturing and reprocessing in response to outbreaks of carbapenem-resistant Enterobacteriaceae (CRE) duodenoscope-related infections. Based on this guidance, we implemented best practices for reprocessing and developed a systematic process for culturing endoscopes with elevator levers. The aim of this study is to report the outcomes and direct costs of this program...
May 9, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28497932/individual-duration-of-axillary-brachial-plexus-block-is-unpredictable-a-prospective-double-centred-observational-study
#13
Wouter Droog, D-Yin Lin, José S Huisman, Fleur A Franssen, G Peter van Aggelen, J Henk Coert, Eilish M Galvin
BACKGROUND: The duration of effect for axillary plexus block using ropivacaine is highly variable. The available literature does not offer any plausible means of predicting time of block offset for individual patients, making it difficult to give accurate information and plan postoperative analgesics. This study was designed to identify factors influencing axillary plexus block offset time. METHODS: A total of 92 patients participated in this prospective double centred observational study...
May 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28494892/postoperative-analgesic-efficacy-of-single-shot-and-continuous-transversus-abdominis-plane-block-after-laparoscopic-cholecystectomy-a-randomized-controlled-clinical-trial
#14
Yun-Mi Choi, Gyeong-Jo Byeon, Soon-Ji Park, Young-Min Ok, Sang-Wook Shin, Kwangho Yang
STUDY OBJECTIVE: To compare the analgesic efficacy of ultrasound-guided single-shot and continuous transversus abdominis plane (TAP) block to that of IV-PCA in patients undergoing laparoscopic cholecystectomy. DESIGN: Prospective randomized controlled trial. SETTING: Post-anesthesia care unit and General ward. PATIENTS: 108 American Society of Anesthesiologist (ASA) physical status I-II patients undergoing laparoscopic cholecystectomy...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28492356/high-frequency-irreversible-electroporation-safety-and-efficacy-of-next-generation-irreversible-electroporation-adjacent-to-critical-hepatic-structures
#15
Imran A Siddiqui, Russell C Kirks, Eduardo L Latouche, Matthew R DeWitt, Jacob H Swet, Erin H Baker, Dionisios Vrochides, David A Iannitti, Rafael V Davalos, Iain H McKillop
Irreversible electroporation (IRE) is a nonthermal ablation modality employed to induce in situ tissue-cell death. This study sought to evaluate the efficacy of a novel high-frequency IRE (H-FIRE) system to perform hepatic ablations across, or adjacent to, critical vascular and biliary structures. Using ultrasound guidance H-FIRE electrodes were placed across, or adjacent to, portal pedicels, hepatic veins, or the gall bladder in a porcine model. H-FIRE pulses were delivered (2250 V, 2-5-2 pulse configuration) in the absence of cardiac synchronization or intraoperative paralytics...
June 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28491181/tips-performed-in-a-patient-with-complete-portal-vein-thrombosis
#16
Ashwani Kumar Sharma, David Charles Kaufman
Portal vein thrombosis is common in cirrhotic patients and results in increased morbidity and mortality. Transjugular intrahepatic portosystemic shunt (TIPS) creation is a well-established therapy for refractory variceal bleeding and refractory ascites in patients who do not tolerate repeated large volume paracentesis. Experience and technical improvements have led to improved TIPS outcomes that have encouraged an expanded application. Complete portal vein thrombosis has come a long way from being a contraindication to an indication for TIPS procedure...
June 2017: Radiology case reports
https://www.readbyqxmd.com/read/28489642/pupillary-reflex-for-evaluation-of-thoracic-paravertebral-block-a-prospective-observational-feasibility-study
#17
Baptiste Duceau, Mélanie Baubillier, Gaëlle Bouroche, Aline Albi-Feldzer, Christian Jayr
BACKGROUND: Although thoracic paravertebral block (TPVB) is recommended in major breast surgery, there is no gold standard to assess the success of TPVB. Pupillary dilation reflex (PDR) is the variation of the pupillary diameter after a noxious stimulus. The objective was to evaluate the feasibility of recording the PDR to assess analgesia in an anesthetized thoracic dermatome after TPVB. METHODS: This prospective, observational, single-center study included 32 patients requiring breast surgery under general anesthesia and TPVB...
May 4, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28487622/an-ultrasound-imaging-guided-robotic-hifu-ablation-experimental-system-and-accuracy-evaluations
#18
Chih Yu An, Jia Hao Syu, Ching Shiow Tseng, Chih-Ju Chang
In recent years, noninvasive thermal treatment by using high-intensity focused ultrasound (HIFU) has high potential in tumor treatment. The goal of this research is to develop an ultrasound imaging-guided robotic HIFU ablation system for tumor treatment. The system integrates the technologies of ultrasound image-assisted guidance, robotic positioning control, and HIFU treatment planning. With the assistance of ultrasound image guidance technology, the tumor size and location can be determined from ultrasound images as well as the robotic arm can be controlled to position the HIFU transducer to focus on the target tumor...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28487356/intravascular-ultrasound-guidance-is-associated-with-better-outcome-in-patients-undergoing-unprotected-left-main-coronary-artery-stenting-compared-with-angiography-guidance-alone
#19
Pontus Andell, Sofia Karlsson, Moman A Mohammad, Matthias Götberg, Stefan James, Jens Jensen, Ole Fröbert, Oskar Angerås, Johan Nilsson, Elmir Omerovic, Bo Lagerqvist, Jonas Persson, Sasha Koul, David Erlinge
BACKGROUND: Small observational studies have indicated better outcome with intravascular ultrasound (IVUS) guidance when performing unprotected left main coronary artery (LMCA) percutaneous coronary intervention (PCI), but the overall picture remains inconclusive and warrants further investigation. We studied the impact of IVUS guidance on outcome in patients undergoing unprotected LMCA PCI in a Swedish nationwide observational study. METHODS AND RESULTS: Patients who underwent unprotected LMCA PCI between 2005 and 2014 because of stable coronary artery disease or acute coronary syndrome were included from the nationwide SCAAR (Swedish Coronary Angiography and Angioplasty Registry)...
May 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28486776/ultrasound-guided-cannulation-of-the-hemodialysis-arteriovenous-access
#20
Frank Ward, Rose Faratro, Rory F McQuillan
Successful cannulation of the arteriovenous access for patients with end-stage kidney failure to allow catheter-free hemodialysis is associated with superior patient outcomes. With an increasing rate of arteriovenous access creation, coupled with increasing dialysis patient age, the "difficult-to-cannulate" access is becoming more commonplace. Ultrasound-guided cannulation aims to improve first-time successful cannulations and minimize cannulation-associated complications such as infiltration and hematoma formation, minimizing delays in access use and reducing catheter dependency...
May 9, 2017: Seminars in Dialysis
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