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vena cava inferior caval index

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https://www.readbyqxmd.com/read/27677085/predicting-fluid-responsiveness-using-bedside-ultrasound-measurements-of-the-inferior-vena-cava-and-physician-gestalt-in-the-emergency-department-of-an-urban-public-hospital-in-sub-saharan-africa
#1
Hendry Robert Sawe, Cathryn Haeffele, Juma A Mfinanga, Victor G Mwafongo, Teri A Reynolds
BACKGROUND: Bedside inferior vena cava (IVC) ultrasound has been proposed as a non-invasive measure of volume status. We compared ultrasound measurements of the caval index (CI) and physician gestalt to predict blood pressure response in patients requiring intravenous fluid resuscitation. METHODS: This was a prospective study of adult emergency department patients requiring fluid resuscitation. A structured data sheet was used to record serial vital signs and the treating clinician's impression of patient volume status and cause of hypotension...
2016: PloS One
https://www.readbyqxmd.com/read/27635166/accuracy-of-the-caval-index-and-the-expiratory-diameter-of-the-inferior-vena-cava-for-the-diagnosis-of-dehydration-in-elderly
#2
Daniele Orso, Nicola Guglielmo, Nicola Federici, Francesco Cugini, Alessio Ban, Filippo Mearelli, Roberto Copetti
PURPOSE: Dehydration is a very common condition among elderly people. Till date there is not yet a fast and easy method to determine a state of dehydration in the emergency department. In the literature there are some exploratory studies that have tried to establish the relationship between some widely used laboratory values and ultrasound for the purpose of diagnosing dehydration. The primary aim of this study is to verify the correlation between two measures derived by ultrasound (caval index and expiratory diameter of inferior vena cava) and blood urea nitrogen (BUN)/creatinine ratio...
September 2016: Journal of Ultrasound
https://www.readbyqxmd.com/read/27147880/correlation-of-caval-index-inferior-vena-cava-diameter-and-central-venous-pressure-in-shock-patients-in-the-emergency-room
#3
Panita Worapratya, Sawanya Anupat, Ruedeekorn Suwannanon, Prasit Wuthisuthimethawee
OBJECTIVES: This study aims to determine the correlation of the caval index, inferior vena cava (IVC) diameter, and central venous pressure (CVP) in patients with shock in the emergency room. MATERIALS AND METHODS: This is a prospective double-blind observational study conducted in the emergency room of a tertiary care center. All patients who presented with shock and had a central venous catheter insertion performed were enrolled. The caval index was calculated as a relative decrease in the IVC diameter during the normal respiratory cycle...
2014: Open Access Emergency Medicine: OAEM
https://www.readbyqxmd.com/read/27051368/does-caval-aorta-index-correlate-with-central-venous-pressure-in-intravascular-volume-assessment-in-patients-undergoing-endoscopic-transuretheral-resection-of-prostate
#4
G F El-Baradey, N S El-Shmaa
BACKGROUND AND OBJECTIVE: Ultrasonography has been suggested as a useful noninvasive tool for intravascular volume assessment in critically ill-patients. Fluid absorption is an inevitable complication of transurethral resection of the prostate (TURP). However, there are few data comparing the caval aortic index with central venous pressure (CVP) measurement for intravascular volume assessment in patients undergoing TURP. MATERIALS AND METHODS: This is a prospective observer blinded study carried out on 50 patients who underwent elective TURP...
April 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/26872728/respiratory-effects-on-fontan-circulation-during-rest-and-exercise-using-real-time-cardiac-magnetic-resonance-imaging
#5
Zhenglun Wei, Kevin K Whitehead, Reza H Khiabani, Michael Tree, Elaine Tang, Stephen M Paridon, Mark A Fogel, Ajit P Yoganathan
BACKGROUND: It is known that respiration modulates cavopulmonary flows, but little data compare mean flows under breath-holding and free-breathing conditions to isolate the respiratory effects and effects of exercise on the respiratory modulation. METHODS: Real-time phase-contrast magnetic resonance combined with a novel method to track respiration on the same image acquisition was used to investigate respiratory effects on Fontan caval and aortic flows under breath-holding, free-breathing, and exercise conditions...
May 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/26782160/changes-in-sonographically-measured-inferior-vena-caval-diameter-in-response-to-fluid-loading-in-term-pregnancy
#6
Celso A Hernandez, Kathryn L Reed, Elizabeth B Juneman, Wayne R Cohen
OBJECTIVES: The purpose of this study was to determine whether the inferior vena caval (IVC) diameter is influenced by intravascular volume changes in pregnancy. METHODS: A prospective observational study was done on 2 groups of normal term gravidas. In 24 patients, we measured the IVC diameter, blood pressure, and heart rate (HR) before and after a 1-L fluid infusion in preparation for regional anesthesia, after initiation of an epidural block, and within 24 hours postpartum...
February 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/26723181/feasibility-of-pure-conventional-retroperitoneal-laparoscopic-radical-nephrectomy-with-level-ii-vena-caval-tumor-thrombectomy
#7
Mingshuai Wang, Junhui Zhang, Yinong Niu, Nianzeng Xing
OBJECTIVE: To report our surgical outcomes and experiences with pure conventional retroperitoneal laparoscopic nephrectomy and tumor thrombectomy for patients with right renal tumors and level II inferior vena caval tumor thrombus. MATERIALS AND METHODS: From February 2012 to June 2014, five patients underwent pure conventional retroperitoneal laparoscopic nephrectomy and tumor thrombectomy. After the inferior vena cava was blocked using tourniquet loops above and below the thrombus with the contralateral renal vein being clamped, the inferior vena cava was opened, and the tumor thrombus was fully extracted...
April 2016: Urology
https://www.readbyqxmd.com/read/26602891/multi-institutional-experience-with-robotic-nephrectomy-with-inferior-vena-cava-tumor-thrombectomy
#8
Ronney Abaza, Ahmad Shabsigh, Erik Castle, Mohamad Allaf, Jim C Hu, Craig Rogers, Mani Menon, Monish Aron, Chandru P Sundaram, Daniel Eun
PURPOSE: Since the first report of robotic management of renal tumors with inferior vena cava tumor thrombi, few additional cases have been reported in the literature. We report our combined experience with this procedure, to our knowledge the first multi-institutional and largest series reported to date. MATERIALS AND METHODS: A retrospective, multi-institutional review of robotic nephrectomy with inferior vena cava tumor thrombectomy was performed with institutional review board approval...
April 2016: Journal of Urology
https://www.readbyqxmd.com/read/26004163/preoperative-multivariable-prognostic-models-for-prediction-of-survival-and-major-complications-following-surgical-resection-of-renal-cell-carcinoma-with-suprahepatic-caval-tumor-thrombus
#9
Ahmed Q Haddad, Bradley C Leibovich, Edwin Jason Abel, Jun-Hang Luo, Laura-Maria Krabbe, Robert Houston Thompson, Jennifer E Heckman, Megan M Merrill, Bishoy A Gayed, Arthur I Sagalowsky, Stephen A Boorjian, Christopher G Wood, Vitaly Margulis
OBJECTIVE: Surgical resection for renal cell carcinoma (RCC) with suprahepatic inferior vena cava tumor thrombus is associated with significant morbidity, yet there are currently no tools for preoperative prognostic evaluation. Our goal was to develop a preoperative multivariable model for prediction of survival and risk of major complications in patients with suprahepatic thrombi. METHODS: We identified patients who underwent surgery for RCC with suprahepatic tumor thrombus extension from 2000 to 2013 at 4 tertiary centers...
September 2015: Urologic Oncology
https://www.readbyqxmd.com/read/25844064/the-caval-index-an-adequate-non-invasive-ultrasound-parameter-to-predict-fluid-responsiveness-in-the-emergency-department
#10
Silke de Valk, Tycho Joan Olgers, Mirjam Holman, Farouq Ismael, Jack Johannes Maria Ligtenberg, Jan Cornelis Ter Maaten
BACKGROUND: Fluid therapy is the first important step in patients with signs of shock but assessment of the volume status is difficult and invasive measurements are not readily available in the emergency department. We have investigated whether the respiratory variation in diameter of the inferior vena cava is a reliable parameter to predict fluid responsiveness in spontaneous breathing emergency department patients with signs of shock. METHODS: All patients admitted to the emergency department during a 15 week period were screened for signs of shock...
2014: BMC Anesthesiology
https://www.readbyqxmd.com/read/25638320/semi-automated-tracking-and-continuous-monitoring-of-inferior-vena-cava-diameter-in-simulated-and-experimental-ultrasound-imaging
#11
Luca Mesin, Paolo Pasquero, Stefano Albani, Massimo Porta, Silvestro Roatta
Assessment of respirophasic fluctuations in the diameter of the inferior vena cava (IVC) is detrimentally affected by its concomitant displacements. This study was aimed at presenting and validating a method to compensate for IVC movement artifacts while continuously measuring IVC diameter in an automated fashion (with minimal interaction with the user) from a longitudinal B-mode ultrasound clip. Performance was tested on both experimental ultrasound clips collected from four healthy patients and simulations, implementing rigid IVC displacements and pulsation...
March 2015: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/25624722/should-temporary-extracorporeal-continuous-portal-diversion-replace-meso-porta-caval-shunts-in-small-for-size-syndrome-in-porcine-hepatectomy
#12
Da-Dong Wang, Yong Xu, Zi-Man Zhu, Xiang-Long Tan, Yu-Liang Tu, Ming-Ming Han, Jing-Wang Tan
AIM: To investigate the feasibility of temporary extracorporeal continuous porta-caval diversion (ECPD) to relieve portal hyperperfusion in "small-for-size" syndrome following massive hepatectomy in pigs. METHODS: Fourteen pigs underwent 85%-90% liver resection and were then randomly divided into the control group (n = 7) and diversion group (n = 7). In the diversion group, portal venous blood was aspirated through the portal catheter and into a tube connected to a centrifugal pump...
January 21, 2015: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/25616587/the-role-of-inferior-vena-cava-diameter-in-volume-status-monitoring-the-best-sonographic-measurement-method
#13
Nalan Gökçe Çelebi Yamanoğlu, Adnan Yamanoğlu, İsmet Parlak, Pelin Pınar, Ali Tosun, Burak Erkuran, Gizem Aydınok, Fatih Torlak
OBJECTIVES: This study aims to determine the site of and the best sonographic method for measurement of inferior vena cava (IVC) diameter in volume status monitoring. METHODS: This observational before-and-after study was performed at the intensive care unit of the emergency department. It included hypotensive adult patients with suspected sepsis who were recommended to receive at least 20 mg/kg fluid replacement by the emergency physician. The patients were fluid replaced at a rate of 1000 mL/h, and maximum and minimum IVC diameters were measured and the Caval index calculated sonographically via both B-mode and M-mode...
March 2015: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25614397/sonographic-inferior-vena-cava-measurements-to-assess-hydration-status-in-college-football-players-during-preseason-camp
#14
RANDOMIZED CONTROLLED TRIAL
Anna L Waterbrook, Amish Shah, Elisabeth Jannicky, Uwe Stolz, Randy P Cohen, Austin Gross, Srikar Adhikari
OBJECTIVES: The purpose of this study was to determine whether sonographic measurement of the inferior vena cava (IVC) in college football players during preseason camp is a reliable way to detect and monitor dehydration. Our primary hypothesis was that IVC diameter measurements, the postpractice caval index, and expiratory diameter were significantly related to percent weight loss after a preseason football practice. METHODS: A prospective cohort sample of Division I intercollegiate football players in preseason training camp was recruited before practice...
February 2015: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/25612468/the-role-of-inferior-vena-cava-diameter-in-the-differential-diagnosis-of-dyspneic-patients-best-sonographic-measurement-method
#15
Adnan Yamanoğlu, Nalan G Çelebi Yamanoğlu, İsmet Parlak, Pelin Pınar, Ali Tosun, Burak Erkuran, Alper Akgür, Neslihan Satılmış Siliv
STUDY OBJECTIVE: We aimed to determine the role of inferior vena cava (IVC) diameter in making a differentiation between dyspnea of cardiac (acute heart failure [AHF]) and pulmonary origin. We also attempted to determine the best sonographic method for the measurement of IVC diameter. METHODS: This prospective observational study was conducted at the intensive care unit of the emergency department of a training and research hospital. This study enrolled patients with the main symptom of dyspnea who were categorized into 2 groups, cardiac dyspnea and pulmonary dyspnea groups, based on the final diagnosis...
March 2015: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25555854/caval-tumor-thrombus-volume-influences-outcomes-in-renal-cell-carcinoma-with-venous-extension
#16
Kamran Zargar-Shoshtari, Pranav Sharma, Patrick Espiritu, Tony Kurian, Julio M Pow-Sang, Devanand Mangar, Wade J Sexton, Philippe E Spiess
INTRODUCTION: Surgery for renal cell carcinoma with tumor thrombus has a high potential morbidity rate, and the current classification system based on proximal tumor thrombus level (TTL) has not been shown to consistently predict outcomes. AIM: To assess the prognostic value of inferior vena cava tumor thrombus volume (IVC-TV) for determining the perioperative complications as well as with survival end points. METHODS: From June 2001 to June 2012, we identified 147 patients who underwent radical nephrectomy with venous thrombi...
March 2015: Urologic Oncology
https://www.readbyqxmd.com/read/25430786/clinical-and-radiographic-predictors-of-the-need-for-inferior-vena-cava-resection-during-nephrectomy-for-patients-with-renal-cell-carcinoma-and-caval-tumour-thrombus
#17
Sarah P Psutka, Stephen A Boorjian, Robert H Thompson, Grant D Schmit, John J Schmitz, Thomas C Bower, Suzanne B Stewart, Christine M Lohse, John C Cheville, Bradley C Leibovich
OBJECTIVE: To evaluate the clinical and radiographic predictors of the need for partial or circumferential resection of the inferior vena cava (IVC) requiring complex vascular reconstruction during venous tumour thrombectomy for renal cell carcinoma (RCC). PATIENTS AND METHODS: Data were collected on 172 patients with RCC and IVC (levels I-IV) venous tumour thrombus who underwent radical nephrectomy with tumour thrombectomy at the Mayo Clinic between 2000 and 2010...
September 2015: BJU International
https://www.readbyqxmd.com/read/25349666/influence-of-breathing-movements-and-valsalva-maneuver-on-vena-caval-dynamics
#18
Alicia Laborda, Sergio Sierre, Mauro Malvè, Ignacio De Blas, Ignatios Ioakeim, William T Kuo, Miguel Angel De Gregorio
AIM: To study changes produced within the inferior vena cava (IVC) during respiratory movements and identify their possible clinical implications. METHODS: This study included 100 patients (46 women; 54 men) over 18 years of age who required an abdominal computed tomography (CT) and central venous access. IVC cross-sectional areas were measured on CT scans at three levels, suprarenal (SR), juxtarenal (JR) and infrarenal (IR), during neutral breathing and again during the Valsalva maneuver...
October 28, 2014: World Journal of Radiology
https://www.readbyqxmd.com/read/24814495/caval-aortic-access-to-allow-transcatheter-aortic-valve-replacement-in-otherwise-ineligible-patients-initial-human-experience
#19
Adam B Greenbaum, William W O'Neill, Gaetano Paone, Mayra E Guerrero, Janet F Wyman, R Lebron Cooper, Robert J Lederman
OBJECTIVES: This study describes the first use of caval-aortic access and closure to enable transcatheter aortic valve replacement (TAVR) in patients who lacked other access options. Caval-aortic access refers to percutaneous entry into the abdominal aorta from the femoral vein through the adjoining inferior vena cava. BACKGROUND: TAVR is attractive in high-risk or inoperable patients with severe aortic stenosis. Available transcatheter valves require large introducer sheaths, which are a risk for major vascular complications or preclude TAVR altogether...
July 1, 2014: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/24634021/computational-fluid-dynamics-in-fontan-patients-to-evaluate-power-loss-during-simulated-exercise
#20
MULTICENTER STUDY
Sjoerd S M Bossers, Merih Cibis, Frank J Gijsen, Michiel Schokking, Jan L M Strengers, René F Verhaart, Adriaan Moelker, Jolanda J Wentzel, Willem A Helbing
OBJECTIVE: Exercise intolerance is common in total cavopulmonary connection (TCPC) patients. It has been suggested that power loss (Ploss) inside the TCPC plays a role in reduced exercise performance. Our objective is to establish the role of Ploss inside the TCPC during increased flow, simulating exercise in a patient-specific way. METHODS: Cardiac MRI (CMR) was used to obtain flow rates from the caval veins during rest and increased flow, simulating exercise with dobutamine...
May 2014: Heart: Official Journal of the British Cardiac Society
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