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https://www.readbyqxmd.com/read/27878445/can-non-invasive-ventilation-modify-central-venous-pressure-comparison-between-invasive-measurement-and-ultrasonographic-evaluation
#1
Maurizio Zanobetti, Alessio Prota, Alessandro Coppa, Laura Giordano, Sofia Bigiarini, Peiman Nazerian, Francesca Innocenti, Alberto Conti, Federica Trausi, Simone Vanni, Giuseppe Pepe, Riccardo Pini
Central venous pressure (CVP) is primarily measured to assess intravascular volume status and heart preload. In clinical practice, the measuring device most commonly used in emergency departments and intensive care units, is an electronic transducer that interconnects a central venous catheter (CVC) with a monitoring system. Non-invasive ventilation (NIV) consists in a breathing support that supplies a positive pressure in airways through a mask or a cask though not using an endotracheal prosthesis. In emergency settings, non-invasive ultrasonography evaluation of CVP, and hence of intravascular volume status entail the measurement by a subxiphoid approach of inferior vena cava diameter and its variations in relation to respiratory activity...
November 22, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/27871094/biomechanical-responses-of-pmhs-subjected-to-abdominal-seatbelt-loading
#2
Rakshit Ramachandra, Yun-Seok Kang, John H Bolte, Alena Hagedorn, Rodney Herriott, Jason A Stammen, Kevin Moorhouse
Past studies have found that a pressure based injury risk function was the best predictor of liver injuries due to blunt impacts. In an effort to expand upon these findings, this study investigated the biomechanical responses of the abdomen of post mortem human surrogates (PMHS) to high-speed seatbelt loading and developed external response targets in conjunction with proposing an abdominal injury criterion. A total of seven unembalmed PMHS, with an average mass and stature of 71 kg and 174 cm respectively were subjected to belt loading using a seatbelt pull mechanism, with the PMHS seated upright in a freeback configuration...
November 2016: Stapp Car Crash Journal
https://www.readbyqxmd.com/read/27857946/can-bedside-ultrasound-inferior-vena-cava-measurements-accurately-diagnose-congestive-heart-failure-in-the-emergency-department-a-clin-iq
#3
Miranda Gaskamp, Mark Blubaugh, Laine H McCarthy, Dewey C Scheid
Congestive heart failure (CHF) is a major cause of morbidity and mortality. Early diagnosis of CHF in patients presenting to the emergency department (ED) with undifferentiated dyspnea would allow clinicians to begin appropriate treatment more promptly. Current guidelines recommend B-type natriuretic peptide (BNP) levels for more accurate diagnosis of CHF in dyspneic patients. Although BNP levels are relatively inexpensive, the test is not usually performed at bedside and results may take up to an hour or more...
October 2016: Journal of Patient-centered Research and Reviews
https://www.readbyqxmd.com/read/27847069/embolization-of-inferior-vena-cava-filter-tyne-and-right-ventricular-perforation-a-cardiac-missile
#4
Thomas Ollila, Syed Naeem, Athena Poppas, George McKendall, Afshin Ehsan
Inferior vena cava (IVC) filter is a medical device placed in patients with proven pulmonary embolism or those with risk of embolization. Although many IVC filters are designed for removal after patient recovery, in many instances they are never retrieved. We present a case of a 22-year-old woman who underwent placement of an IVC filter as a prophylactic measure following a C-6 spinal injury that rendered her a quadriplegic. A tyne from the filter later fractured and embolized to the right ventricle, leading to perforation and subsequent large symptomatic pericardial effusion...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27797797/infrarenal-aortic-clamp-reviving-a-patient-from-acute-surgical-haemorrhagic-shock-a-novel-management-technique
#5
Ranjith Kumar, M V S Satya Prakash, Subhasree Das, Ramanitharan Manikandan
Surgical management of renal cell carcinoma extending into the inferior vena cava (IVC) is almost always accompanied by massive intraoperative blood loss and associated complications. It is a widely recognised problem, and its active management is essential in improving the perioperative morbidity and mortality. We share our experience with a similar case of open radical nephrectomy with massive blood loss of twice the circulating volume in a duration of <8 surgical hours. Although we emphasise the goals of securing haemostasis, restoration of circulating volume, and efficient management by replacing blood components, in the present case, despite the above-mentioned goals being fulfilled, we were unable to extricate the patient from haemorrhagic shock by conventional means and therefore resorted to desperate measures, namely the novel approach of infrarenal aortic clamping along with higher than recommended vasopressor support...
October 19, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27762259/inferior-vena-cava-collapsibility-index-is-a-valuable-and-non-invasive-index-for-elevated-general-heart-end-diastolic-volume-index-estimation-in-septic-shock-patients
#6
Jie Zhao, Guolin Wang
BACKGROUND This study aimed to investigate the relationship between the inferior vena cava respirophasic variation (IVC collapsibility index [IVCCI]) and the general heart end-diastolic volume index (GEDVI). By determining the above relationship, we could evaluate the utility of IVCCI as an indicator. MATERIAL AND METHODS Forty-two septic patients were finally enrolled in this study. The inferior vena cava's diameter was measured with the largest at the end of expiration (IVC3) and with the smallest at the end of inspiration (IVCi) on the ultrasound (IVCCI=[(IVCD e - IVCD i)/IVCD e] ×100%)...
October 20, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27752831/effect-of-fontan-operation-on-liver-stiffness-in-children-with-single-ventricle-physiology
#7
Frank W DiPaola, Kurt R Schumacher, Caren S Goldberg, Joshua Friedland-Little, Aishwarya Parameswaran, Jonathan R Dillman
OBJECTIVES: Assess liver stiffness using ultrasound point shear wave elastography (US P-SWE) in children before and after the Fontan operation. METHODS: Eighteen children undergoing the Fontan operation were prospectively enrolled. Eight US P-SWE measurements were obtained from the right hepatic lobe before surgery, and at multiple postoperative time points. Temporally related inferior vena cava pressure (IVC) data was collected from medical records, when available...
October 17, 2016: European Radiology
https://www.readbyqxmd.com/read/27734186/estimation-of-right-ventricular-dysfunction-by-computed-tomography-pulmonary-angiography-a-valuable-adjunct-for-evaluating-the-severity-of-acute-pulmonary-embolism
#8
Dong Jia, Xiao-Ming Zhou, Gang Hou
To evaluate the feasibility and the efficacy of computed tomography pulmonary angiography (CTPA) in differentiating acute pulmonary embolism (PE) patients with or without right ventricular dysfunction and to evaluate the severity of right ventricular dysfunction in acute PE patients with CPTA. We retrospectively collected and measured the following parameters: right ventricular diameter by short axis in the axial plane (RVDaxial), left ventricular diameter by short axis in the axial plane (LVDaxial), right ventricular diameter by level on the reconstructed four-chamber views (RVD4-CH), left ventricular diameter by level on the reconstructed four-chamber views (LVD4-CH), main pulmonary artery diameter (MPAD), ascending aorta diameter (AOD), coronary sinus diameter (CSD), superior vena cava diameter (SVCD), inferior vena cava (IVC) reflux and interventricular septum deviation by CTPA, and we calculated the RVDaxial/LVDaxial, RVD4-CH/LVD4-CH and MPAD/AOD ratios in acute PE patients...
October 12, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27729265/laser-assisted-removal-of-embedded-vena-cava-filters-a-5-year-first-in-human-study
#9
William T Kuo, Justin I Odegaard, Jarrett K Rosenberg, Lawrence V Hofmann
BACKGROUND: Many patients are subjected to the potential risks and morbidity associated with an indwelling IVC filter when standard methods fail to remove the filter. We evaluated the safety and effectiveness of the excimer laser-sheath technique for removing embedded IVC filters. METHODS: Over a 5-year period, 251 consecutive patients undergoing laser-assisted filter retrieval were prospectively enrolled. There were 103 men and 148 women (mean:46 years, range:15-82)...
October 8, 2016: Chest
https://www.readbyqxmd.com/read/27695165/usefulness-of-ultrasonographic-measurement-of-the-diameter-of-the-inferior-vena-cava-to-predict-responsiveness-to-intravascular-fluid-administration-in-patients-with-cancer
#10
Silvio A Ñamendys-Silva, Juan M Arredondo-Armenta, Humberto Guevara-García, Mireya Barragán-Dessavre, Francisco J García-Guillén, Luis A Sánchez-Hurtado, Bertha Córdova-Sánchez, Andoreni R Bautista-Ocampo, Angel Herrera-Gómez, Abelardo Meneses-García
We conducted an observational, longitudinal prospective study in which we measured the diameters of the inferior vena cava (IVC) of 47 patients using ultrasonography. The aim of our study was to assess the state of blood volume and to determine the percentage of patients who responded to intravascular volume expansion. Only 17 patients (36%) responded to fluid management. A higher number of responding patients had cardiovascular failure compared with nonresponders (82% vs. 50%, P = 0.03). Among the patients with cardiovascular failure, the probability of finding responders was 4...
October 2016: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/27692148/a-pilot-study-to-monitor-changes-in-spirometry-and-lung-volume-following-an-exacerbation-of-chronic-obstructive-pulmonary-disease-copd-as-part-of-a-supported-discharge-program
#11
Breda Cushen, Niamh McCormack, Kerrie Hennigan, Imran Sulaiman, Richard W Costello, Brenda Deering
BACKGROUND: One-third of patients with an exacerbation of Chronic Obstructive Pulmonary Disease(COPD) are re-hospitalised at 90 days. Exacerbation recovery is associated with reductions in lung hyperinflation and improvements in symptoms and physical activity. We assessed the feasibility of monitoring these clinical parameters in the home. We hypothesised that the degree of change in spirometry and lung volumes differs between those who had an uneventful recovery and those who experienced a further exacerbation...
October 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27686439/-the-correlation-between-optic-nerve-sheath-diameter-and-volume-status-in-patients-after-cardiac-surgery
#12
H Chen, X T Wang, X Ding, H M Zhang, H Zhao, Y G Chao, W He, D W Liu
Objective: To investigate the relationship between optic nerve sheath diameter (ONSD) and volume status of patients after cardiac surgery. Methods: A total of consecutive 56 patients who were treated in Critical Care Unit in Peking Union Medical College Hospital after open heart surgery from January to August 2015 were screened in this study. Central venous pressure (CVP) and 72 h net fluid balance were monitored. ONSD and diameter of inferior vena cava (IVC) were measured by ultrasound. Results: A total of 44 patients were finally included in the study...
October 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27680806/e5-lung-ultrasound-and-echocardiography-for-peripartum-haemodynamic-monitoring-of-patients-with-severe-preeclampsia
#13
J Ambrozic, K Prokselj, M Lucovnik
INTRODUCTION: The ability to judge intravascular volume is fundamental in the management of patients with severe preeclampsia. Insufficient intravascular volume can result in decreased oxygen delivery to tissues and exacerbates organ dysfunction. On the other hand, fluid excesses can lead to fluid extravasation and pulmonary edema. Outside of pregnancy, transthoracic echocardiography and lung ultrasonography have become important diagnostic and monitoring tools in critically ill patients...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
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
#14
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/27670943/standardized-reporting-in-ir-a-prospective-multi-institutional-pilot-study
#15
Justin P McWilliams, Rajesh P Shah, Matthew Quirk, Sarah B White, Stephanie L Dybul, Judy Ahrar, Joseph R Steele, Sharon W Kwan, Jeremy Handel, Ronald S Winokur, Charles A Gilliland, Jeremy C Durack
PURPOSE: To assess adoption and survey-based satisfaction rates following deployment of standardized interventional radiology (IR) procedure reports across multiple institutions. MATERIALS AND METHODS: Standardized reporting templates for 5 common interventional procedures (central venous access, inferior vena cava [IVC] filter insertion, IVC filter removal, uterine artery embolization, and vertebral augmentation) were distributed to 20 IR practices in a prospective quality-improvement study...
December 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27648024/a-non-invasive-method-for-assessment-of-intravascular-fluid-status-inferior-vena-cava-diameters-and-collapsibility-index
#16
Sinan Karacabey, Erkman Sanri, Ozlem Guneysel
OBJECTIVE: To evaluate the correlation between central venous pressure (CVP) and inferior vena cava (IVC) diameters measured by ultrasonography (Ultrasound) in critically ill patients. METHODS: Intubated critically ill patients were enrolled. The CVP values were measured using a U-tube manometer and were compared to the IVC diameters and collapsibility index, which were measured by bedside Ultrasound. Patients younger than 18 years old, who were not intubated, who had an abdominal pressure greater than 12 mmHg, and/or who were admitted for trauma were excluded from the study...
July 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27636215/characterizing-the-bladder-s-response-to-onabotulinum-toxin-type-a-using-a-rat-model
#17
Alexis A Dieter, Jennifer M Wu, Nazema Y Siddiqui, Danielle J Degoski, Jillene M Brooks, Paul C Dolber, Matthew O Fraser
OBJECTIVES: The aim of this study was to characterize the response of the rat bladder neuromuscular system to intramural injection of onabotulinum toxin type A (BoNT/A) over 9 weeks using in vivo cystometry (CMG) and in vitro contractility (IVC). METHODS: Chronic bladder catheters were implanted in female Sprague-Dawley rats, and either (1) BoNT/A (10 units in 20 μL saline) or (2) saline (20 μL) was injected in 5 × 4 μL doses throughout the bladder wall. At 1, 3, 6, and 9 weeks after injection, conscious restrained CMG was performed...
November 2016: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/27590048/the-assessment-of-circulating-volume-using-inferior-vena-cava-collapse-index-and-carotid-doppler-velocity-time-integral-in-healthy-volunteers-a-pilot-study
#18
Tom Peachey, Andrew Tang, Elinor C Baker, Jason Pott, Yonathan Freund, Tim Harris
BACKGROUND: Assessment of circulating volume and the requirement for fluid replacement are fundamental to resuscitation but remain largely empirical. Passive leg raise (PLR) may determine fluid responders while avoiding potential fluid overload. We hypothesised that inferior vena cava collapse index (IVCCI) and carotid artery blood flow would change predictably in response to PLR, potentially providing a non-invasive tool to assess circulating volume and identifying fluid responsive patients...
2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27564306/laparoscopic-radical-nephrectomy-with-inferior-vena-cava-thrombectomy-highlight-of-key-surgical-steps
#19
A Sim, T Todenhöfer, J Mischinger, O Fahmy, J Boettge, S Rausch, S Bier, S Aufderklamm, A Stenzl, G Gakis, C Schwentner
OBJECTIVE: Vascular involvement in the form of renal vein (RV) or inferior vena cava (IVC) thrombus can be seen in 4-10% of patients presented with RCC. In patients without presence of metastasis, surgical treatment in the form of radical nephrectomy remains the treatment of choice with 5-year survival rates of 45-70%. Open surgery is still the first treatment option of choice at the moment for RCC patients with IVC thrombus. MATERIALS AND METHODS: In our study, we are reporting a case of patient with RCC and level I IVC thrombus treated with laparoscopy...
July 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27557621/ultrasonography-of-inferior-vena-cava-to-determine-central-venous-pressure-a-meta-analysis-and-meta-regression
#20
Mostafa Alavi-Moghaddam, Ali Kabir, Majid Shojaee, Mohammad Manouchehrifar, Mehrdad Moghimi
BACKGROUND: Until now, no valid alternative exists for predicting central venous pressure (CVP) with lower invasiveness than central venous catheter. PURPOSE: To explore inferior vena cava diameter (IVCD) measurement accuracy by ultrasonography as a surrogate variable for determination of central venous pressure (CVP). MATERIAL AND METHODS: A systematic review and meta-analysis of all published studies in PubMed, Scopus, Web of Knowledge, and Google Scholar were conducted from inception to July 2013...
August 24, 2016: Acta Radiologica
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