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subclavian ultrasound

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https://www.readbyqxmd.com/read/28341502/significance-of-blunted-venous-waveforms-seen-on-upper-extremity-ultrasound
#1
Xuan-Binh D Pham, Ezinne J Ihenachor, Hoover Wu, Jerry J Kim, Amy H Kaji, Matthew C Koopmann, Timothy J Ryan, Christian de Virgilio
INTRODUCTION: Current guidelines recommend vascular mapping ultrasound (US) prior to arteriovenous fistula creation. Blunted venous waveforms (BVW) suggest central venous stenosis; however, this relationship and one between BVW and the presence of a central venous catheter (CVC) remain unclear. MATERIAL AND METHODS: All patients who received upper-extremity vascular mapping US between January 2013 and October 2014 at a single institution were retrospectively reviewed...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28303659/invasive-characterization-of-atherosclerotic-plaque-in-patients-with-peripheral-arterial-disease-using-near-infrared-spectroscopy-intravascular-ultrasound
#2
Amr E Abbas, Sibin K Zacharias, James A Goldstein, Ivan D Hanson, Robert D Safian
OBJECTIVES: We describe the characteristics of atherosclerotic plaque in patients with peripheral arterial disease (PAD) using near-infrared spectroscopy-intravascular ultrasound (NIRS-IVUS) BACKGROUND: Imaging and autopsy studies have described atherosclerotic plaque in different vascular beds, including varying degrees of lipid, fibrosis, and calcification. Recently, NIRS has been validated as an accurate method for detecting lipid-core plaque (LCP) in the coronary circulation. Invasive evaluation of plaque composition using NIRS-IVUS has not been reported in different peripheral arterial circulations...
March 17, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28295158/first-trimester-ultrasound-tests-alone-or-in-combination-with-first-trimester-serum-tests-for-down-s-syndrome-screening
#3
REVIEW
S Kate Alldred, Yemisi Takwoingi, Boliang Guo, Mary Pennant, Jonathan J Deeks, James P Neilson, Zarko Alfirevic
BACKGROUND: Down's syndrome occurs when a person has three, rather than two copies of chromosome 21; or the specific area of chromosome 21 implicated in causing Down's syndrome. It is the commonest congenital cause of mental disability and also leads to numerous metabolic and structural problems. It can be life-threatening, or lead to considerable ill health, although some individuals have only mild problems and can lead relatively normal lives. Having a baby with Down's syndrome is likely to have a significant impact on family life...
March 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28289815/a-randomized-clinical-trial-of-ultrasound-guided-infra-clavicular-cannulation-of-the-subclavian-vein-in-cardiac-surgical-patients-short-axis-versus-long-axis-approach
#4
Antonella Vezzani, Tullio Manca, Claudia Brusasco, Gregorio Santori, Luca Cantadori, Andrea Ramelli, Gianluca Gonzi, Francesco Nicolini, Tiziano Gherli, Francesco Corradi
PURPOSE: The aim of this study was to compare the success rate and safety of short-axis versus long-axis approaches to ultrasound-guided subclavian vein cannulation. METHODS: A total of 190 patients requiring central venous cannulation following cardiac surgery were randomized to either short-axis or long-axis ultrasound-guided cannulation of the subclavian vein. Each cannulation was performed by anesthesiologists with at least 3 years' experience of ultrasound-guided central vein cannulation (>150 procedures/year, 50% short-axis and 50% long-axis)...
March 13, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28278070/blood-flow-velocity-in-brachial-and-subclavian-vessels-immediately-after-compressive-procedures-for-treatment-of-postcancer-therapy-lymphedema-in-breast-cancer-a-randomized-blind-clinical-trial
#5
Monique Silva Rezende, Ana Luiza Marsengo, Rinaldo Roberto de Jesus Guirro, Elaine Caldeira de Oliveira Guirro
OBJECTIVE: This study sought to evaluate the effect of elastic compression, functional compressive bandaging, and kinesiotherapy on blood flow of the upper limb with lymphedema secondary to the treatment of breast cancer. METHODS: This was a randomized blind crossover clinical trial with a washout period of 7 days between treatments. We evaluated 20 women with a mean age of 66.85 years (standard deviation = 11.76), undergoing three types of therapeutic procedures randomly applied by lot: kinesiotherapy, functional compressive bandaging + kinesiotherapy (FCB), and elastic compression + kinesiotherapy (EC)...
March 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28261815/the-practice-of-platelet-transfusion-prior-to-central-venous-catheterization-in-presence-of-coagulopathy-a-national-survey-among-clinicians
#6
E K van de Weerdt, A L Peters, E J Goudswaard, J M Binnekade, K P van Lienden, B J Biemond, A P J Vlaar
BACKGROUND: Correction of coagulopathy prior to central venous catheter (CVC) placement is advocated by guidelines, while retrospective studies support restrictive use of transfusion products. STUDY DESIGN AND METHODS: We conducted a mixed vignette and questionnaire web survey to investigate current practice and preferences for CVC placement. Clinical vignettes were used to quantify the tendency to administer platelet concentrate. A positive ß-coefficient is in favour of administering platelet concentrate...
March 5, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28259825/soft-tissue-neoplasms-causing-apparent-venous-thoracic-outlet-syndrome
#7
Aleem K Mirza, Ian J Barrett, Animesh Rathore, Bassem T Elhassan, Peter S Rose, Thomas Shives, Thomas C Bower
Venous thoracic outlet syndrome (vTOS) usually results from compression of the subclavian vein classically as a result of narrowing of the costoclavicular space. We report two rare cases of soft tissue neoplasms resulting in apparent vTOS. The first case is a 46-year old female with a two-year history intermittent unilateral shoulder pain, who was initially diagnosed with intervertebral disk herniation. Cervical fusion was performed, however her symptoms progressed and she additionally developed paresthesias and venous congestion...
March 1, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28222983/validation-of-subclavian-duplex-velocity-criteria-to-grade-severity-of-subclavian-artery-stenosis
#8
Albeir Y Mousa, Ramez Morkous, Mike Broce, Michael Yacoub, Andrew Sticco, Ravi Viradia, Mark C Bates, Ali F AbuRahma
BACKGROUND: Validation of subclavian duplex ultrasound velocity criteria (SDUS VC) to grade the severity of subclavian artery stenosis has not been established or systematically studied. Currently, there is a paucity of published literature and lack of practitioner consensus for how subclavian duplex velocity findings should be interpreted in patients with subclavian artery stenosis. OBJECTIVE: The objective of the present study was to validate SDUS measurements using subclavian conventional or computed tomography angiogram (subclavian angiogram [SA])-derived measurements...
February 17, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28157793/ultrasound-guided-subclavian-vein-cannulation-in-low-birth-weight-neonates
#9
Ulrik Lausten-Thomsen, Zied Merchaoui, Cécile Dubois, Sergio Eleni Dit Trolli, Nolwenn Le Saché, Mostafa Mokhtari, Pierre Tissières
OBJECTIVES: Central venous access in critically ill, small infants remains technically challenging even in experienced hands. Several vascular accesses exist, but the subclavian vein is often preferred for central venous catheter insertion in infants where abdominal malformation and/or closure of the vein preclude the use of umbilical venous catheters, as catheterization of the subclavian vein is easier in very short necks than the internal jugular vein for age-related anatomical reasons...
February 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28128085/antiphospholipid-syndrome-with-anti%C3%AE-2glicoprotein-1-antibodies-as-the-cause-of-recurrent-tibial-vein-thrombosis-in-sapho-syndrome
#10
Hanna Przepiera-Będzak, Marek Brzosko
The antiphospholipid antibody syndrome is defined by the presence of antiphospholipid antibodies in patients with recurrent venous or arterial thromboembolism (1). SAPHO syndrome is a rare disease, characterized by specific clinical manifestations of synovitis, acne pustulosis, hyperostosis, and osteitis. It is a disease that manifests with a combination of osseous and articular manifestations associated with skin lesions (2). Venous thrombosis complicating SAPHO syndrome seems to be uncommon with an unclear pathogenesis (3-9)...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28100525/transoesophageal-echocardiographic-evaluation-of-central-venous-catheter-positioning-using-peres-formula-or-a-radiological-landmark-based-approach-a-prospective-randomized-single-centre-study
#11
J H Ahn, I S Kim, J H Yang, I G Lee, D H Seo, S P Kim
BACKGROUND: The lower superior vena cava (SVC), near its junction with the right atrium (RA), is considered the ideal location for the central venous catheter tip to ensure proper function and prevent injuries. We determined catheter insertion depth with a new formula using the sternoclavicular joint and the carina as radiological landmarks, with a 1.5 cm safety margin. The accuracy of tip positioning with the radiological landmark-based technique (R) and Peres' formula (P) was compared using transoesophageal echocardiography...
February 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28072476/aberrant-right-subclavian-artery-correlation-between-fetal-and-neonatal-abnormalities-and-abnormal-genetic-screening-or-testing
#12
Angela C Ranzini, Francine Hyman, Emily Jamaer, Tim van Mieghem
OBJECTIVES: To determine whether fetuses with an isolated aberrant course of the right subclavian artery (ARSA) have increased risk for chromosomal abnormalities, including trisomy 21 or 22q11 deletion. METHODS: We performed a retrospective chart review of all fetuses with antenatally diagnosed ARSA. Data were collected from fetal anatomic surveys, fetal echocardiograms, noninvasive trisomy 21 screening programs, invasive genetic studies, and neonatal records. RESULTS: Seventy-nine fetuses with ARSA were identified at 20...
January 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28059630/carotid-ultrasound-features-of-anomalous-left-vertebral-artery-originating-from-the-aortic-arch-proximal-to-the-left-subclavian-artery
#13
Masayuki Wakita, Ran Takei, Fumio Miyashita, Yuki Hamada, Satoshi Ohyama, Hideki Matsuoka, Hiroshi Takashima
We present three cases of anomalous origin of the left vertebral artery (LVA) detected during the evaluation of stroke. The VA usually enters the transverse foramen of the sixth cervical vertebra (C6), but an anomalous LVA originating from the aorta frequently enters at a higher level. In our series, ultrasound of the LVA showed entry at C4 in two patients and at C5 in one patient. These findings suggested anomalous LVA origin, and three-dimensional computed tomography demonstrated the LVA arising from the aorta proximal to the left subclavian arteries...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/27932306/analysis-of-the-outcomes-in-central-venous-access-port-implantation-performed-by-residents-via-the-internal-jugular-vein-and-subclavian-vein
#14
Hajime Matsushima, Tomohiko Adachi, Toru Iwata, Takashi Hamada, Hiroki Moriuchi, Manpei Yamashita, Tomoo Kitajima, Hitoshi Okubo, Susumu Eguchi
OBJECTIVE: The central venous access port (CVAP) has played an important role in the safe administration of chemotherapy and parenteral nutrition. The aim of the present study was to clarify the optimal access vein for CVAP implantation when performed by residents rather than attending surgeons. METHODS: A consecutive cases of CVAP implantation via the subclavian vein (SV) using a landmark-guided technique or via the internal jugular vein (JV) using an ultrasound-guided technique were divided into 2 groups according to whether the intervention was performed by a resident or an attending surgeon...
December 5, 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27896794/efficacy-and-safety-of-ultrasound-guided-placement-of-central-venous-port-systems-via-the-right-internal-jugular-vein-in-elderly-oncologic-patients-our-single-center-experience-and-protocol
#15
Alfonso Canfora, Claudio Mauriello, Antonio Ferronetti, Gianpaolo Marte, Vittorio Di Maio, Guido Ciorra, Maria Grazia Esposito, Maria Elena Giuliano, Giovanni Fregola, Luigi Barra, Salvatore Cuzzovaglia, Vincenzo Bottino, Pietro Maida
BACKGROUND: Ultrasound-guidance has become the routine method for internal jugular vein (IJV) catheterization reducing dramatically failure and complication rates for central venous port (CVP) placement. AIMS: The aim of this study was to determine the safety and efficacy of ultrasound-guided IJV CVP placement in elderly oncologic patients. METHODS: Between January 2013 and December 2015, 101 elderly oncological patients underwent right IJV CVP placement under ultrasound-guidance...
November 28, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27869288/infraclavicular-access-to-the-axillary-vein-new-possibilities-for-the-catheterization-of-the-central-veins-in-the-intensive-care-unit
#16
REVIEW
Ryszard Gawda, Tomasz Czarnik, Lidia Łysenko
Central vein cannulation is one of the most commonly performed procedures in intensive care. Traditionally, the jugular and subclavian vein are recommended as the first choice option. Nevertheless, these attempts are not always obtainable for critically ill patients. For this reason, the axillary vein seems to be a rational alternative approach. In this narrative review, we evaluate the usefulness of the infraclavicular access to the axillary vein. The existing evidence suggests that infraclavicular approach to the axillary vein is a reliable method of central vein catheterization, especially when performed with ultrasound guidance...
2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27829522/the-changing-profile-of-safe-techniques-for-the-insertion-of-a-central-venous-catheter-in-pediatric-patients-improvement-in-the-outcome-with-the-experiences-of-500-insertions-in-a-single-institution
#17
Tatsuru Kaji, Takafumi Kawano, Waka Yamada, Koji Yamada, Shun Onishi, Kazuhiko Nakame, Motoi Mukai, Satoshi Ieiri, Hideo Takamatsu
BACKGROUND: The ability to safely insert a central venous catheter (CVC) is critical to avoid associated complications. The aim of this study was to explore appropriate technique to maintain the safety of pediatric patients during CVC. METHODS: We reviewed the surgical records of CVC insertion techniques and associated complications of 503 tunneled CVC insertions performed from 2000 to 2015. RESULTS: Two hundred thirty CVCs (45.7%) were inserted into the subclavian vein using the landmark technique for 10years (first period)...
December 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27824563/adaptive-spectral-envelope-estimation-for-doppler-ultrasound
#18
Aditi Kathpalia, Yucel Karabiyik, Sturla H Eik-Nes, Eva Tegnander, Ingvild Kinn Ekroll, Gabriel Kiss, Hans Torp
Estimation of accurate maximum velocities and spectral envelope in ultrasound Doppler blood flow spectrograms are both essential for clinical diagnostic purposes. However, obtaining accurate maximum velocity is not straightforward due to intrinsic spectral broadening and variance in the power spectrum estimate. The method proposed in this paper for maximum velocity point detection has been developed by modifying an existing method-signal noise slope intersection, incorporating in it steps from an altered version of another method called geometric method...
November 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27774968/-ultrasound-assisted-catheter-directed-thrombolysis-of-acute-pulmonary-embolism-via-the-subclavian-vein-alternative-access-path
#19
Veysel Özgür Barış, Evren Özçınar, Özgür Ulaş Özcan, Mustafa Şırlak
Routinely, the femoral vein is used for access in ultrasound-assisted, catheter-directed thrombolysis (USAT). Presently described is a case of bilateral femoral venous occlusion caused by chronic thrombosis, successfully treated with USAT, using subclavian vein for access.
October 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/27709274/-injuries-to-blood-vessels-near-the-heart-caused-by-central-venous-catheters
#20
J Abram, J Klocker, N Innerhofer-Pompernigg, M Mittermayr, M C Freund, N Gravenstein, V Wenzel
Injuries to blood vessels near the heart can quickly become life-threatening and include arterial injuries during central venous puncture, which can lead to hemorrhagic shock. We report 6 patients in whom injury to the subclavian artery and vein led to life-threatening complications. Central venous catheters are associated with a multitude of risks, such as venous thrombosis, air embolism, systemic or local infections, paresthesia, hemothorax, pneumothorax, and cervical hematoma, which are not always immediately discernible...
November 2016: Der Anaesthesist
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