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Vena cava ultrasound

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https://www.readbyqxmd.com/read/29229465/diverse-management-of-isolated-calf-deep-venous-thrombosis-in-a-university-hospital
#1
Raudel Garcia, Kristan Probeck, Doreen M Elitharp, Antonios P Gasparis, Nicos Labropoulos
BACKGROUND: The management of patients with isolated deep venous thrombosis (DVT) is controversial, leading to overtreatment and undertreatment with several complications and increased cost. The aim of this study was to describe the management of isolated calf DVT (ICDVT) in a university hospital. METHODS: Data on patients with acute DVT in our hospital are prospectively entered in a database through our venous thromboembolism team. All patients had an objective diagnosis with duplex ultrasound (DU) in our accredited vascular laboratory...
December 8, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29217912/laparoscopic-transperitoneal-ureterouretrostomy-for-retrocaval-ureter-a-case-report
#2
J S Rajkumar, P V Dhanapal, Ilamparuthi Chennakrishnan, S Akbar, Anirudh Rajkumar, Prabakaran R, G Venkatesan, Deepa Ganesh
Retrocaval ureter is a rare developmental anomaly with an incidence of 1 in 1500 births. The inferior vena cava compresses the ureter posteriorly, causing upstream dilatation of the proximal ureter and the kidney. We report a 16-year-old girl who presented with right flank pain, diagnosed as retrocaval ureter with ultrasound, intravenous urogram and CECT, and was treated with laparoscopic transperitoneal ureteroureterostomy. Embryological aspects and laparoscopic technical considerations are highlighted in this case report...
December 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29215838/-effekt-of-blood-flow-shutdown-on-the-vein-damage-when-exposed-to-hifu
#3
N N Petrishchev, D U Semenov, A U Tsibin, G U Yukina, A E Berkovich, A A Bursian, A B Belyankin, K U Senchik
The purpose. In the study we investigated the impact of the partial blood flow shutdown on structural changes in the rabbit vena cava posterior wall after exposure to high-intensity focused ultrasound (HIFU). Methods. Ultrasound Exposure: frequency of 1.65 MHz, the ultrasound intensity in the focus of 13.6 kW/cm2, the area of the focal spot 1 mm2, continuous ultrasound, exposure for 3 seconds. Results. Immediately after HIFU exposure all layers of the vein wall showed characteristic signs of thermal damage...
April 2017: Patologicheskaia Fiziologiia i èksperimental'naia Terapiia
https://www.readbyqxmd.com/read/29186007/anatomically-realistic-ultrasound-phantoms-using-gel-wax-with-3d-printed-moulds
#4
Efthymios Maneas, Wenfeng Xia, Daniil I Nikitichev, Batol Daher, Maniragav Manimaran, Rui Yen J Wong, Chia-Wei Chang, Benyamin Rahmani, Claudio Capelli, Silvia Schievano, Gaetano Burriesci, Sebastien Ourselin, Anna L David, Malcolm Finlay, Simeon J West, Tom Vercauteren, Adrien E Desjardins
Here we describe methods for creating tissue-mimicking ultrasound phantoms based on patient anatomy using a soft material called gel wax. To recreate acoustically realistic tissue properties, two additives to gel wax were considered: paraffin wax to increase acoustic attenuation, and solid glass spheres to increase backscattering. The frequency dependence of ultrasound attenuation was well described with a power law over the measured range of 3 to 10 MHz. With the addition of paraffin wax in concentrations of 0 to 8 w/w%, attenuation varied from 0...
November 29, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29148000/the-feasibility-and-safety-of-piccs-accessed-via-the-superficial-femoral-vein-in-patients-with-superior-vena-cava-syndrome
#5
Yonghui Wan, Yuxin Chu, Yanru Qiu, Qian Chen, Wei Zhou, Qibin Song
OBJECTIVE: To investigate the feasibility and safety of the peripherally inserted central catheters (PICCs) accessed via the superficial femoral vein in patients with superior vena cava syndrome (SVCS). METHODS: From October 2010 to December 2014, 221 cancer patients with SVCS in our center received real-time ultrasound-guidance of the superficial femoral vein inserted central catheters (FICCs) at the mid-thigh. PICC insertion via upper extremity veins had also been investigated in 2604 cancer patients without SVCS as control...
November 10, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29147470/retrospective-analysis-of-inferior-vena-cava-collapsibility-with-point-of-care-ultrasound-and-urine-sodium-and-fena-in-patients-with-early-stage-acute-kidney-injury
#6
Faizan Babar, Gurkeerat Singh, Mustafa Noor, Bruce Sabath
Early stage acute kidney injury (AKI) is an independent risk factor for an increase in mortality. Accurate assessment of volume status is a major challenge during the early stages of acute renal injury. Determining volume status based on the history and physical exam lacks accuracy. Urine sodium and free excretion of sodium (FENa) provide objective evidence of intravascular volume status when interpreted carefully and is helpful to delineate prerenal from intrinsic renal failure. In recent years point of care ultrasound has been used to assess volume status...
2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29118532/transperitoneal-laparoscopic-repair-of-retrocaval-ureter-our-experience-and-review-of-literature
#7
Ashwin S Tamhankar, Abhishek J Savalia, Ajit S Sawant, Prakash W Pawar, Gaurav V Kasat, Sunil R Patil
Context and Aim: Retrocaval ureter (RCU), also known as circumcaval ureter, occurs due to anomalous development of inferior vena cava (IVC) and not ureter. The surgical approach for this entity has shifted from open to laparoscopic and robotic surgery. This is a relatively new line of management with very few case reports. Herein, we describe the etiopathology, our experience with six cases of transperitoneal laparoscopic repair of RCU operated at tertiary care center in India and have reviewed different management options...
October 2017: Urology Annals
https://www.readbyqxmd.com/read/29078654/unusual-case-of-subxiphoid-uniportal-vats-right-upper-lobectomy-in-a-patient-with-interrupted-inferior-vena-cava-with-azygous-continuation
#8
Firas Emad Abu Akar, Chenlu Yang, Yiming Zhou, Lei Lin, Diego Gonzalez-Rivas, Lei Jiang
Interrupted IVC (also known as Azygos continuation of the inferior vena cava) is a relatively uncommon congenital condition with prevalence 1.5% (0.2-3%) of the general population (Bass et al.). Although it's usually asymptomatic condition, splenic or cardiac abnormalities could be associated (Hardwick et al.). Incidental diagnosis during prenatal ultrasound screening or by routine imaging is the most common scenario. Special attention is required during right side thoracic procedures surgical resections in order to avoid scarifying the azygos vein that could lead to fatal results (Effler et al...
2017: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29057120/ivc-measurements-in-critically-ill-patients-with-acute-renal-failure
#9
Rami Jambeih, Jean I Keddissi, Houssein A Youness
OBJECTIVE: To determine whether the inferior vena cava (IVC) measurement by bedside ultrasound (US-IVC) predicts improvement in renal function in patients with acute kidney injury (AKI). DESIGN: Prospective observational study. SETTING: Medical intensive care unit. PATIENTS: 33 patients with AKI were included. INTERVENTION: US-IVC was done on admission. The patients' management was done by the primary teams, who were unaware of the US-IVC findings...
2017: Critical Care Research and Practice
https://www.readbyqxmd.com/read/29050117/-pediatric-idiopathic-hypereosinophilic-syndrome-with-pulmonary-embolism-a-case-report-and-review-of-literature
#10
N Dong, X Y Dong
Objective: To explore clinical features of idiopathic hypereosinophilic syndrome combined with pulmonary embolism. Method: A retrospective analysis of a patient with idiopathic hypereosinophilic syndrome and pulmonary embolism diagnosed and treated in the Respiratory Department of Shanghai Children's Hospital in September 2016 was performed. A literature search was performed with"Eosinophils increased, thrombosis"as the Chinese keywords in Wanfang database and"idiopathic hypereosinophilic syndrome, deep vein thrombosis"as the English key words in PubMed database...
October 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29045981/renal-ewing-s-sarcoma-primitive-neuroectodermal-tumor-a-case-report-and-literature-review
#11
C Liu, L G Cui, H L Wang
Ewing's sarcoma/primitive neuroectodermal tumor (EWS/PNET) in the kidney is a rare but high-grade malignant tumor that affects predominantly elder children and adolescents. Patients mostly present with nonspecific symptoms such as abdominal pain and gross hematuria. Since EWS/PNET has a rapid clinical progression with early metastasis and death, it is essential to make an accurate and early diagnosis. Once diagnosed, multimodality treatment, including radical surgery combined with adjuvant chemotherapy, and radiotherapy if necessary, is recommended...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29033272/graduating-surgical-residents-lack-competence-in-critical-care-ultrasound
#12
Renuka Tripu, Margaret H Lauerman, Daniel Haase, Syeda Fatima, Jacob Glaser, Cassandra Cardarelli, Thomas M Scalea, Sarah Murthi
OBJECTIVE: Ultrasound provides accessible imaging for bedside diagnostics and procedural guidance, but may lead to misdiagnosis in untrained users. The main objective of this study was to determine observed and self-perceived competence with critical care ultrasound in graduated general surgery residents. DESIGN: The design of this study was a retrospective review. Ultrasound training program records were reviewed for number of prior ultrasound examinations performed, self-perceived competence, observed competence on faculty examinations, and intended future use of individual critical care ultrasound examinations...
October 13, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29024379/can-a-renal-nurse-assess-fluid-status-using-ultrasound-on-the-inferior-vena-cava-a-cross-sectional-interrater-study
#13
Ulrich Steinwandel, Nicholas Gibson, Amanda Towell, James J R Rippey, Johan Rosman
INTRODUCTION: Ultrasound of the inferior vena cava (IVC-US) has been used to estimate intravascular volume status and fluid removal during a hemodialysis session. Usually, renal nurses rely on other, imprecise methods to determine ultrafiltration. To date, no study has examined whether renal nurses can reliably perform ultrasound for volume assessment and for potential prevention of intradialytic hypotension. This pilot study aimed to determine if a renal nurse could master the skill of performing and correctly interpreting Point of Care Ultrasound on patients receiving hemodialysis...
October 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28985844/assessment-of-hemodynamic-response-to-fluid-resuscitation-of-patients-with-intra-abdominal-sepsis-in-low-and-middle-income-countries
#14
Egide Abahuje, Robert Munyaneza, Robert Riviello, Faustin Ntirenganya
BACKGROUND: Patients with intra-abdominal infections need to achieve adequate hemodynamic status before being taken to the operating room. Multiple parameters (urinary output [UOP], vital signs, inferior vena cava collapsibility index, and central venous pressure) may be used to assess hemodynamic response to fluid resuscitation, but the options are few in limited-resource settings. This study aimed at assessing if a bedside-performed ultrasound to assess the inferior vena cava collapsibility index is superior to UOP in assessing hemodynamic response to fluid resuscitation...
October 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28984705/the-crashing-patient-hemodynamic-collapse
#15
Hitesh Gidwani, Hernando Gómez
PURPOSE OF REVIEW: Rapid restoration of tissue perfusion and oxygenation are the main goals in the resuscitation of a patient with circulatory collapse. This review will focus on providing an evidence based framework of the technological and conceptual advances in the evaluation and management of the patient with cardiovascular collapse. RECENT FINDINGS: The initial approach to the patient in cardiovascular collapse continues to be based on the Ventilate-Infuse-Pump rule...
December 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28984662/rapid-cardiothoracic-ultrasound-protocol-for-diagnosis-of-acute-heart-failure-in-the-emergency-department
#16
Jonas Öhman, Veli-Pekka Harjola, Pasi Karjalainen, Johan Lassus
OBJECTIVES: The aim of this study was to evaluate the performance of a rapid cardiothoracic ultrasound protocol (CaTUS), combining echocardiographically derived E/e' and lung ultrasound (LUS), for diagnosing acute heart failure (AHF) in patients with undifferentiated dyspnea in an emergency department (ED). PATIENTS AND RESULTS: We enrolled 100 patients with undifferentiated dyspnea from a tertiary care ED, who all had CaTUS done immediately upon arrival in the ED...
October 3, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28978519/evaluation-of-chest-ultrasound-integrated-teaching-of-respiratory-system-physiology-to-medical-students
#17
Matteo Paganini, Michela Bondì, Alessandro Rubini
Ultrasound imaging is a widely used diagnostic technique, whose integration in medical education is constantly growing. The aim of this study was to evaluate chest ultrasound usefulness in teaching respiratory system physiology, students' perception of chest ultrasound integration into a traditional lecture in human physiology, and short-term concept retention. A lecture about respiratory physiology was integrated with ultrasound and delivered to third-year medical students. It included basic concepts of ultrasound imaging and the physiology of four anatomic sectors of the body of a male volunteer, shown with a portable ultrasound device (pleural sliding, diaphragmatic movement, inferior vena cava diameter variations, cardiac movements)...
December 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28960894/focused-echocardiography-and-lung-ultrasound-protocol-for-guiding-treatment-in-acute-heart-failure
#18
Jonas Öhman, Veli-Pekka Harjola, Pasi Karjalainen, Johan Lassus
AIMS: There is little evidence-based therapy existing for acute heart failure (AHF), hospitalizations are lengthy and expensive, and optimal monitoring of AHF patients during in-hospital treatment is poorly defined. We evaluated a rapid cardiothoracic ultrasound (CaTUS) protocol, combining focused echocardiographic evaluation of cardiac filling pressures, that is, medial E/e' and inferior vena cava index, with lung ultrasound (LUS) for guiding treatment in hospitalized AHF patients. METHODS AND RESULTS: We enrolled 20 consecutive patients hospitalized for AHF, whose in-hospital treatment was guided using the CaTUS protocol according to a pre-specified treatment protocol targeting resolution of pulmonary congestion on LUS and lowering cardiac filling pressures...
September 28, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28960428/advantages-of-cardiopulmonary-ultrasound-in-post-cardiopulmonary-resuscitation-tension-pneumothorax
#19
Charles W Lanks, Vanessa Correa
Tension pneumothorax is a life-threatening condition that frequently occurs in the setting of cardiopulmonary resuscitation as a result of positive pressure ventilation and chest compressions. Developing crepitus due to subcutaneous air can severely limit pleural ultrasound (US) views and hinder the diagnosis of pneumothorax by pleural US. Physicians trained in the use of point-of-care US must be familiar with the subcostal cardiac and inferior vena cava views associated with tension pneumothorax. These include a dilated, nondistensible inferior vena cava and hyperdynamic right heart as a result of a reduced preload...
September 29, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28960319/sonographic-assessment-of-volaemia-development-and-validation-of-a-new-method-in-dogs
#20
M Cambournac, I Goy-Thollot, A Violé, C Boisvineau, C Pouzot-Nevoret, A Barthélemy
OBJECTIVES: The aims of this study were to describe a method for the sonographic assessment of volaemia, to determinate inter- and intra-operator variability and to assess the ability to detect blood loss after blood donation in healthy dogs. MATERIALS AND METHODS: The left kidney was identified in a spleno-renal view, and transverse views of the caudal vena cava and aorta were obtained in 12 dogs. Vessel diameters were measured in B-mode, in duplicate by two operators, and the caudal vena cava:aorta ratio was calculated...
September 27, 2017: Journal of Small Animal Practice
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