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Invasive hemodynamic monitoring

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https://www.readbyqxmd.com/read/28497934/cerebral-autoregulation-monitoring-in-acute-traumatic-brain-injury-what-s-the-evidence
#1
Leanne A Calviello, Joseph Donnelly, Frederick A Zeiler, Eric P Thelin, Peter Smielewski, Marek Czosnyka
Cerebral autoregulation is conceptualized as a vascular self-regulatory mechanism within the brain. Controlled by elusive relationships between various biophysical processes, it functions to protect the brain against potential damages caused by sudden changes in cerebral perfusion pressures and flow. Following events such as traumatic brain injuries (TBI), autoregulation may be compromised, potentially leading to an unfavorable outcome. In spite of its complexity, autoregulation has been able to be quantified non-invasively within the neuro-critical care setting with the aid of transcranial Doppler...
May 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28497189/quantification-of-mitral-regurgitation-during-percutaneous-mitral-valve-repair-added-value-of-simultaneous-hemodynamic-and-3d-echocardiographic-assessment
#2
Ilonka Rohm, Tudor C Poerner, Ali Hamadanchi, Sylvia Otto, Torsten Doenst, Christian Jung, P Christian Schulze, Björn Goebel
The objective of this study was to investigate the usefulness of intraprocedural hemodynamic monitoring for MR evaluation during pMRV. Assessment of mitral regurgitation (MR) during percutaneous mitral valve repair (pMVR) procedure is challenging. 3D color Doppler allows exact quantification of MR, but is technically demanding. Sixty patients with moderate to severe MR (14 with structural and 46 functional MR) were included in the study. Intraprocedural pressure curves were continuously obtained in the left atrium (LA) and left ventricle (LV)...
May 11, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28497180/performance-of-a-capnodynamic-method-estimating-effective-pulmonary-blood-flow-during-transient-and-sustained-hypercapnia
#3
Thorir Svavar Sigmundsson, Tomas Öhman, Magnus Hallbäck, Eider Redondo, Fernando Suarez Sipmann, Mats Wallin, Anders Oldner, Caroline Hällsjö Sander, Håkan Björne
The capnodynamic method is a minimally invasive method continuously calculating effective pulmonary blood flow (COEPBF), equivalent to cardiac output when intra pulmonary shunt flow is low. The capnodynamic equation joined with a ventilator pattern containing cyclic reoccurring expiratory holds, provides breath to breath hemodynamic monitoring in the anesthetized patient. Its performance however, might be affected by changes in the mixed venous content of carbon dioxide (CvCO2). The aim of the current study was to evaluate COEPBF during rapid measurable changes in mixed venous carbon dioxide partial pressure (PvCO2) following ischemia-reperfusion and during sustained hypercapnia in a porcine model...
May 11, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28493526/real-time-mri-guidance-of-cardiac-interventions
#4
Adrienne E Campbell-Washburn, Mohammad A Tavallaei, Mihaela Pop, Elena K Grant, Henry Chubb, Kawal Rhode, Graham A Wright
Cardiac magnetic resonance imaging (MRI) is appealing to guide complex cardiac procedures because it is ionizing radiation-free and offers flexible soft-tissue contrast. Interventional cardiac MR promises to improve existing procedures and enable new ones for complex arrhythmias, as well as congenital and structural heart disease. Guiding invasive procedures demands faster image acquisition, reconstruction and analysis, as well as intuitive intraprocedural display of imaging data. Standard cardiac MR techniques such as 3D anatomical imaging, cardiac function and flow, parameter mapping, and late-gadolinium enhancement can be used to gather valuable clinical data at various procedural stages...
May 11, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28474097/advanced-hemodynamic-monitoring-in-intensive-care-medicine-a%C3%A2-german-web-based-survey-study
#5
B Saugel, P C Reese, J Y Wagner, M Buerke, W Huber, S Kluge, R Prondzinsky
BACKGROUND: Advanced hemodynamic monitoring is recommended in patients with complex circulatory shock. OBJECTIVES: To evaluate the current attitudes and beliefs among German intensivists, regarding advanced hemodynamic monitoring, the actual hemodynamic management in clinical practice, and the barriers to using it. MATERIALS AND METHODS: Web-based survey among members of the German Society of Medical Intensive Care and Emergency Medicine. RESULTS: Of 284 respondents, 249 (87%) agreed that further hemodynamic assessment is needed to determine the type of circulatory shock if no clear clinical diagnosis can be made...
May 4, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28471443/the-role-of-near-infrared-spectroscopy-monitoring-in-preterm-infants
#6
P Korček, Z Straňák, J Širc, G Naulaers
Neurological morbidities such as peri/intraventricular hemorrhage and periventricular leukomalacia largely determine the neurodevelopmental outcome of vulnerable preterm infants and our aim should be to minimize their occurrence or severity. Bed-side neuromonitoring could provide valuable pieces of information about possible hemodynamic disturbances that are significantly associated with neurological morbidities and increased mortality. Near-infrared spectroscopy offers evaluation of regional cerebral oxygenation, which in conjunction with other non-invasive methods may give us a more complete picture about end-organ perfusion...
May 4, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28466117/invasive-hemodynamic-assessment-of-patients-with-heart-failure-and-pulmonary-hypertension
#7
REVIEW
Rupa K Patil, Parag Goyal, Rajesh V Swaminathan, Luke K Kim, Dmitriy N Feldman
Right heart catheterization (RHC) with a pulmonary artery (PA) catheter is a minimally invasive method of obtaining hemodynamic data (e.g., right atrial and pulmonary pressures, cardiac output, pulmonary vascular resistance), which are used to diagnose and manage patients with advanced heart failure (HF), HF with preserved ejection fraction, and pulmonary hypertension (PH). Invasive hemodynamic data obtained from RHC can aid in the prognostication of HF and PH patients and are important in guiding decisions of implanting mechanical circulatory support devices and listing patients for heart and/or lung transplantation...
June 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28463939/validation-of-a-non-invasive-monitor-to-continuously-trend-individual-responses-to-hypovolemia
#8
Steven L Moulton, Jane Mulligan, Maria Antoinette Santoro, Khanh Bui, Greg Z Grudic, David MacLeod
BACKGROUND: Humans are able to compensate for significant blood loss with little change in traditional vital signs, limiting early detection and intervention. We hypothesized that the Compensatory Reserve Index (CRI), a new hemodynamic parameter which trends changes in intravascular volume relative to the individual patient's response to hypovolemia, would accurately trend each subject's progression from normovolemia to decompensation (SBP < 80) and back to normovolemia in humans. METHODS: Men and women, ages 19-36 years, underwent stepwise (~333 mL aliquot) removal and replacement of 20% blood volume (males 15 mL/kg; females 13 mL/kg) via a large bore IV...
May 1, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28437601/maternal-hemodynamics-in-normal-pregnancies-reference-ranges-and-the-role-of-maternal-characteristics
#9
Dimuthu Vinayagam, Baskaran Thilaganathan, Oliver Stirrup, Elena Mantovani, Asma Khalil
OBJECTIVES: The main aim of this study was to construct reference ranges of the maternal central hemodynamic parameters during pregnancy. The second aim was to determine the maternal and pregnancy characteristics, which influence these hemodynamic parameters. METHODS: This was a prospective cohort study of low-risk pregnant women attending for routine antenatal care at St George's Hospital, London. The exclusion criteria included any medical disorder present at the time of study recruitment, or development of hypertension or intrauterine fetal growth restriction following study recruitment...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28418937/clinical-validation-of-a-new-wrist-continuous-noninvasive-hemodynamic-monitoring-system-in-comparison-with-invasive-radial-artery-measurement
#10
Chen Li, Chanjuan Li, Wei Zhang, Ling Wang, Zhidong Wang, Yongji Wang, Jielai Xia
BACKGROUND: An ideal arterial pressure monitoring system for perioperative care is required to be accurate, noninvasive, continuous, and risk free. Although several continuous noninvasive arterial pressures (CNAP) are determined on the finger, a new wrist CNAP monitoring system was developed. This prospective study was designed as a randomized-controlled trial to assess its validity in comparison with invasive arterial pressure (IAP) monitoring. PATIENTS AND METHODS: Sixty patients undergoing elective surgery under general anesthesia were enrolled...
April 17, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28409759/influence-of-central-hemodynamics-on-vv-ecmo-oxygen-delivery-in-neonatal-animal-model
#11
M M Said, O Rivera, G T Mikesell, K Rais-Bahrami
BACKGROUND: Recirculation of oxygenated blood in venovenous extracorporeal membrane oxygenation (VV ECMO) can decrease the oxygen delivery provided by the ECMO support. This study investigated the influence of central hemodynamics and catheter position on the amount of recirculation and oxygen delivery during VV ECMO. METHODS: Recirculation was measured in seven newborn lambs (mean weight 4.7 kg) during VV ECMO using the ELSA Monitor (Transonic Systems, Inc., Ithaca, NY) and using the central venous line (CVL) method...
2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28401790/comparison-of-iodixanol-and-iopromide-in-patients-with-renal-insufficiency-and-congestive-heart-failure-undergoing-coronary-angiography-by-hemodynamic-monitoring
#12
Geng Qian, Yong-Qiang Yang, Wei Dong, Feng Cao, Yun-Dai Chen
We investigated the impact of contrast media (CM) with different osmolality on cardiac preload in patients with chronic kidney disease (CKD) and congestive heart failure (CHF). Patients with CKD and CHF were equally randomized to receive either iso-osmolar contrast media (IOCM) iodixanol or low-osmolar contrast media iopromide. We measured cardiac preload indexes by invasive hemodynamic monitoring before and after CM injection. Major adverse cardiac events postprocedures were recorded. Increase in extravascular lung water index was only seen in the iopromide group ( P < ...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28393776/serial-semi-invasive-hemodynamic-assessment-following-pericardiectomy-for-chronic-constrictive-pericarditis
#13
Ujjwal Kumar Chowdhury, Poonam Malhotra Kapoor, Adil Rizvi, Vishwas Malik, Sandeep Seth, Rajiv Narang, Mani Kalaivani, Sarvesh Pal Singh, Sathiya Selvam
OBJECTIVES: This study was designed to prospectively investigate the effects of pericardiectomy via median sternotomy on intra- and postoperative hemodynamics by a new semi-invasive device (Flotrac/VigileoTM monitor) using arterial pressure waveform analysis. PATIENTS AND METHODS: Thirty consecutive patients aged 15 to 55 years (mean+SD, 31.73 + 13.53 years), who had undergone total pericardiectomy via median sternotomy underwent serial hemodynamic evaluation. FlotracTM Sensor - derived stroke volume, stroke volume variation, systemic vascular resistance index (SVRI), cardiac index and right atrial pressure were measured just before and after pericardiectomy, at 12 hours, 24 hours, 48 hours, 72 hours and at discharge postoperatively...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28391426/comparison-of-stroke-volume-measurement-between-non-invasive-bioreactance-and-esophageal-doppler-in-patients-undergoing-major-abdominal-pelvic-surgery
#14
Gennaro De Pascale, Mervyn Singer, David Brealey
PURPOSE: Bioreactance is a non-invasive technology for measuring stroke volume (SV) in the operating room and critical care setting. We evaluated how the NICOM(®) bioreactance device performed against the CardioQ(®) esophageal Doppler monitor in patients undergoing major abdominal-pelvic surgery, focusing on the effect of different hemodynamic interventions. METHODS: SVNICOM and SVODM were simultaneously measured intraoperatively, including before and after interventions including fluid challenge, vasopressor boluses, peritoneal gas insufflation/removal, and Trendelenburg/reverse Trendelenburg patient positioning...
April 8, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28389055/primary-amebic-meningoencephalitis-in-children-a-report-of%C3%A2-two-fatal-cases-and-review-of-the-literature
#15
Robert C Stowe, Davut Pehlivan, Katie E Friederich, Michael A Lopez, Shannon M DiCarlo, Varina L Boerwinkle
BACKGROUND: Primary amebic meningoencephalitis is a rare, almost uniformly fatal disease of cerebral invasion by Naegleria fowleri, occurring most commonly after swimming in warm fresh water in summer months. Treatment using the experimental medication miltefosine demonstrated improved survival and favorable neurocognitive outcome in a 2013 North American patient. Little has been described regarding electrographic recordings of such patients, and little is known to compare known pediatric cases of survival...
February 22, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28379881/comparison-of-noninvasive-blood-pressure-monitoring-with-invasive-arterial-pressure-monitoring-in-medical-icu-patients-with-septic-shock
#16
Leonard E Riley, Guoqing John Chen, Heath E Latham
OBJECTIVE: In the critically ill, the insertion of peripheral arterial catheters to monitor hemodynamics is a low-risk procedure, but carries the potential for complications. This study was designed to compare invasive and noninvasive blood pressure measurements in patients with septic shock in a medical ICU. PATIENTS AND METHODS: We carried out a prospective observational study of patients admitted with septic shock and a radially inserted peripheral arterial catheter in the medical ICU with 31 adult patients who underwent four pairs of simultaneous noninvasive and invasive blood pressure measurements (124 comparisons), with the invasive blood pressure taken as the gold standard...
April 4, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28373639/assessment-of-volumetric-hemodynamic-parameters-and-body-composition-in-stable-renal-transplant-recipients
#17
Łukasz Czyżewski, Janusz Wyzgał, Emilia Czyżewska, Joanna Sańko-Resmer, Łukasz Szarpak
BACKGROUND Cardiovascular disease (CVD) has been associated with decreased graft survival and increased complications in renal transplant recipients (RTRs). The objectives of this study were to explore the relationship between body composition and hemodynamic parameters (cardiac index [CI] and systemic vascular resistance index [SVRI]) in RTRs. MATERIAL AND METHODS The study included 80 RTRs (mean age: 51±8 yrs) who had been admitted to our Nephrology and Transplantology Clinic at 0.5 to 28 years after KTx...
April 4, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28368084/neurovascular-ultrasound-in-emergency-settings-diagnostic-and-therapeutic-aspects
#18
REVIEW
T Santos, M Veloso, P Barros
INTRODUCTION: Neurovascular ultrasound is a non-invasive, portable and fast imaging method that, when performed by an experienced neurosonologist, offers reliable and reproducible information on the morphological and hemodynamic status of cervical and intracranial vessels. AIM: To review the available evidence regarding the use of this tool in the approach to acute stroke. DEVELOPMENT: Neurovascular ultrasound can be used in one of two ways: diagnostic and therapeutic...
April 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28366285/a-review-of-hemodynamic-monitoring-techniques-methods-and-devices-for-the-emergency-physician
#19
Abdullah E Laher, Matthew J Watermeyer, Sean K Buchanan, Nicole Dippenaar, Nelly Clotilde Tchouambou Simo, Feroza Motara, Muhammed Moolla
The emergency department (ED) is frequently the doorway to the intensive care unit (ICU) for a significant number of critically ill patients presenting to the hospital. Hemodynamic monitoring (HDM) which is a key component in the effective management of the critically ill patient presenting to the ED, is primarily concerned with assessing the performance of the cardiovascular system and determining the correct therapeutic intervention to optimise end-organ oxygen delivery. The spectrum of hemodynamic monitoring ranges from simple clinical assessment and routine bedside monitoring to point of care ultrasonography and various invasive monitoring devices...
March 18, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28360433/use-of-near-infrared-spectroscopy-nirs-in-cerebral-tissue-oxygenation-monitoring-in-neonates
#20
Rene Gumulak, Lucia Casnocha Lucanova, Mirko Zibolen
Near-infrared spectroscopy (NIRS) is a technology capable of non-invasive, continuous measuring of regional tissue oxygen saturation (StO2). StO2 represents a state of hemodynamic stability, which is influenced by many factors. Extensive research has been done in the field of measuring StO2 of various organs. The current clinical availability of several NIRS-based devices reflects an important development in prevention, detection and correction of discrepancy in oxygen delivery to the brain and vital organs...
March 30, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
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