keyword
MENU ▼
Read by QxMD icon Read
search

Invasive hemodynamic monitoring

keyword
https://www.readbyqxmd.com/read/28733057/clinical-validation-of-non-invasive-cardiac-output-monitoring-in-healthy-pregnant-women
#1
Kelsey McLaughlin, Stephen P Wright, John C P Kingdom, John D Parker
OBJECTIVE: Non-invasive hemodynamic monitoring has the potential to be a valuable clinical tool for the screening and management of hypertensive disorders of pregnancy. The objective of this study was to validate the clinical utility of the non-invasive cardiac output monitoring (NICOM) system in pregnant women. METHODS: Twenty healthy pregnant women with a singleton pregnancy at 22 to 26 weeks' gestation were enrolled in this study. Measures of heart rate, stroke volume, and cardiac output were obtained through NICOM and compared with Doppler echocardiography...
July 18, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28707362/left-atrial-pressure-and-predictors-of-survival-after-percutaneous-mitral-paravalvular-leak-closure
#2
Elad Maor, Claire E Raphael, Sidakpal S Panaich, Mohamad Alkhouli, Allison Cabalka, Donald J Hagler, Peter M Pollak, Guy S Reeder, Mackram F Eleid, Charanjit S Rihal
BACKGROUND: Data on the clinical utility of left atrial (LA) hemodynamic monitoring during percutaneous mitral interventions are limited. OBJECTIVES: To evaluate the association between intraprocedural LA pressures during percutaneous mitral paravalvular leak (PVL) closure and long term survival. METHODS: Patients who underwent mitral PVL repair with invasive LA pressure monitoring were divided at baseline to three tertiles based on their mean final LA pressure (<25%; 25-30%; >30% of mean systolic blood pressure)...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28705994/wearable-brain-imaging-with-multi-modal-physiological-recording
#3
Gary E Strangman, Vladimir Ivkovic, Quan Zhang
The brain is a central component of cognitive and physical human performance. Measures including functional brain activation, cerebral perfusion, cerebral oxygenation, evoked electrical responses, and resting hemodynamic and electrical activity are all related to, or can predict health status or performance decrements. However, measuring brain physiology typically requires large, stationary machines that are not suitable for mobile or self-monitoring. Moreover, when individuals are ambulatory, systemic physiological fluctuations-e...
July 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28665923/non-invasive-continuous-cardiac-output-and-cerebral-perfusion-monitoring-in-term-infants-with-neonatal-encephalopathy-assessment-of-feasibility-and-reliability
#4
Eva Forman, Colm R Breatnach, Stephanie Ryan, Jana Semberova, Jan Miletin, Adrienne Foran, Afif El-Khuffash
BACKGROUND: None invasive hemodynamic monitoring of infants with neonatal encephalopathy (NE) undergoing therapeutic hypothermia (TH) would be a potentially useful clinical tool. We aimed assess the feasibility and reliability of non-invasive cardiac output monitoring (NICOM) and near infrared spectroscopy (NIRS) in this cohort. METHODS: NICOM and NIRS were commenced to measure cardiac output (CO), systemic vascular resistance (SVR), blood pressure (BP), and cerebral regional oxygen saturations (SctO2) during TH and rewarming...
June 30, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28648415/non-invasive-cardiac-output-monitoring-to-be-or-not-to-be-that-is-the-question
#5
EDITORIAL
Abhishek Gupta, Sundeep Mishra
Role of hemodynamic monitoring in critically ill patients is still controversial. While invasive monitoring is accurate, it may be counter-productive in view of its essentially invasive nature. Non-invasive monitoring is less intrusive but has not yet been well validated for accuracy compared with gold standard of invasive monitoring.
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28636889/complications-of-hematopoietic-stem-transplantation-fungal-infections
#6
REVIEW
Ali S Omrani, Reem S Almaghrabi
Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are at increased risk of invasive fungal infections, especially during the early neutropenic phase and severe graft-versus-host disease. Mold-active prophylaxis should be limited to the highest risk groups. Empiric antifungal therapy for HSCT with persistent febrile neutropenia is associated with unacceptable response rates, unnecessary antifungal therapy, increased risk of toxicity, and inflated costs. Empiric therapy should not be a substitute for detailed work up to identify the cause of fever in such patients...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28635056/high-resolution-deep-functional-imaging-of-the-whole-mouse-brain-by-photoacoustic-computed-tomography-in%C3%A2-vivo
#7
Pengfei Zhang, Lei Li, Li Lin, Peng Hu, Junhui Shi, Yun He, Liren Zhu, Yong Zhou, Lihong V Wang
Photoacoustic computed tomography (PACT) is a non-invasive imaging technique offering high contrast, high resolution, and deep penetration in biological tissues. We report a PACT system equipped with a high frequency linear transducer array for mapping the microvascular network of a whole mouse brain with the skull intact and studying its hemodynamic activities. The linear array was scanned in the coronal plane to collect data from different angles, and full-view images were synthesized from the limited-view images in which vessels were only partially revealed...
June 21, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28631103/transesophageal-echocardiography-in-orthotopic-liver-transplantation-a-comprehensive-intraoperative-monitoring-tool
#8
REVIEW
Luigi Vetrugno, Federico Barbariol, Umberto Baccarani, Francesco Forfori, Giovanni Volpicelli, Giorgio Della Rocca
Intraoperative transesophageal echocardiography is a minimally invasive monitoring tool that can provide real-time visual information on ventricular function and hemodynamic volume status in patients undergoing liver transplantation. The American Association for the Study of Liver Diseases states that transesophageal echocardiography should be used in all liver transplant candidates in order to assess chamber sizes, hypertrophy, systolic and diastolic function, valvular function, and left ventricle outflow tract obstruction...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28612302/a-simplified-lung-ultrasound-approach-to-detect-increased-extravascular-lung-water-in-critically-ill-patients
#9
Antonio Anile, Jole Russo, Giacomo Castiglione, Giovanni Volpicelli
BACKGROUND: The quantification of B-lines at lung ultrasonography is a valid tool to estimate the extravascular lung water (EVLW) in patients after major cardiac surgery. However, there is still uncertainty about the correlation between B-lines and EVLW in a general population of critically ill. AIM: To evaluate a simplified lung ultrasonographic assessment as a tool to estimate the EVLW in critically ill patients admitted to a polyvalent intensive care unit (ICU)...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28607340/perioperative-hemodynamic-optimization-based-on-a-totally-non-invasive-monitoring-device-waiting-for-more-convincing-evidence
#10
Agostino Roasio
No abstract text is available yet for this article.
June 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28604571/hvad-waveform-analysis-as-a-noninvasive-marker-of-pulmonary-capillary-wedge-pressure-a-first-step-toward-the-development-of-a-smart-left-ventricular-assist-device-pump
#11
Jonathan Grinstein, Daniel Rodgers, Sara Kalantari, Gabriel Sayer, Gene H Kim, Nitasha Sarswat, Sirtaz Adatya, Takeyoshi Ota, Valluvan Jeevanandam, Daniel Burkhoff, Nir Uriel
Flow waveforms are an important feature of the HVAD left ventricular assist device (LVAD) that provides information about HVAD function and patient hemodynamics. We assessed the properties of one specific aspect of the waveform, the slope of the ventricular filling phase (VFP), and its correlation with pulmonary capillary wedge pressure (PCWP). A total of 101 screenshots from the HVAD monitor and simultaneous hemodynamic measurements were obtained simultaneously during sequential stages of invasive hemodynamic ramp studies...
June 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28603000/validation-of-a-defibrillation-lead-ventricular-volume-measurement-compared-to-three-dimensional-echocardiography
#12
David E Haines, Wilson Wong, Robert Canby, Coty Jewell, Mahmoud Houmsse, David Pederson, Lissa Sugeng, John Porterfield, Anil Kottam, John Pearce, Jon Valvano, Joel Michalek, Aron Trevino, Sandeep Sagar, Marc D Feldman
BACKGROUND: There is increasing evidence that using frequent invasive measures of pressure in patients with heart failure results in improved outcomes compared to traditional measures. Admittance, a measure of volume derived from preexisting defibrillation leads, is proposed as a new technique to monitor cardiac hemodynamics in patients with an implantable defibrillator. OBJECTIVE: The purpose of this study was to evaluate the accuracy of a new ventricular volume sensor (VVS, CardioVol) compared with 3-dimenssional echocardiography (echo) in patients with an implantable defibrillator...
June 9, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28584226/comparison-of-3-times-a-week-4-and-5-hour-in-center-hemodialysis-sessions-with-use-of-continuous-non-invasive-hemodynamic-monitoring
#13
Łukasz Czyżewski, Janusz Wyzgał, Janusz Sierdziński, Emilia Czyżewska, Jacek Smereka, Łukasz Szarpak
BACKGROUND Very aggressive ultrafiltration rate (lasting 3.5-4 h) may result in inadequate hemodialysis (HD). Our aim was to characterize HD-induced cardiovascular adaptation and its links to fluid removal during 4- vs. 5-h HD sessions. MATERIAL AND METHODS The study involved 50 HD patients. A Cardioscreen device (Messtechnik, Ilmenau, Germany) was used to perform non-invasive hemodynamic measurements during mid-week HD sessions. Body fluids and nutritional status were assessed with a Body Composition Monitor (Fresenius Medical Care)...
June 6, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28583532/prediction-of-fluid-responsiveness-by-a-non-invasive-respiratory-systolic-time-interval-variation-using-heart-sound-signals-in-recipients-undergoing-liver-transplantation
#14
S-H Kim, Y-J Moon, J-W Kim, J-G Song, G-S Hwang
BACKGROUND: The fluid management of cirrhotic patients undergoing liver transplantation (LT) is challenging. Phonocardiography, a graphic recording of heart sounds, provides valuable information concerning heart function and hemodynamic condition. We assessed whether the systolic time interval (STI) and its respiratory variation could predict fluid responsiveness in cirrhotic patients undergoing LT. METHODS: Thirty LT recipients who needed volume expansion were included...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28580340/a-system-for-continuous-estimating-and-monitoring-cardiac-output-via-arterial-waveform-analysis
#15
A Vakily, H Parsaei, M M Movahhedi, M A Sahmeddini
BACKGROUND: Cardiac output (CO) is the total volume of blood pumped by the heart per minute and is a function of heart rate and stroke volume. CO is one of the most important parameters for monitoring cardiac function, estimating global oxygen delivery and understanding the causes of high blood pressure. Hence, measuring CO has always been a matter of interest to researchers and clinicians. Several methods have been developed for this purpose, but a majority of them are either invasive, too expensive or need special expertise and experience...
June 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28580292/non-invasive-multimodal-analysis-of-cortical-activity-blood-volume-and-neurovascular-coupling-in-infantile-spasms-using-eeg-fnirs-monitoring
#16
Emilie Bourel-Ponchel, Mahdi Mahmoudzadeh, Aline Delignières, Patrick Berquin, Fabrice Wallois
Although infantile spasms can be caused by a variety of etiologies, the clinical features are stereotypical. The neuronal and vascular mechanisms that contribute to the emergence of infantile spasms are not well understood. We performed a multimodal study by simultaneously recording electroencephalogram and functional Near-infrared spectroscopy in an intentionally heterogeneous population of six children with spasms in clusters. Regardless of the etiology, spasms were accompanied by two phases of hemodynamic changes; an initial change in the cerebral blood volume (simultaneously with each spasm) followed by a neurovascular coupling in all children except for the one with a large porencephalic cyst...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28552462/the-accuracy-of-picco%C3%A2-in-measuring-cardiac-output-in-patients-under-therapeutic-hypothermia-comparison-with-transthoracic-echocardiography
#17
T Souto Moura, S Aguiar Rosa, N Germano, R Cavaco, T Sequeira, M Alves, A L Papoila, L Bento
BACKGROUND: Invasive cardiac monitoring using thermodilution methods such as PiCCO® is widely used in critically ill patients and provides a wide range of hemodynamic variables, including cardiac output (CO). However, in post-cardiac arrest patients subjected to therapeutic hypothermia, the low body temperature possibly could interfere with the technique. Transthoracic Doppler echocardiography (ECHO) has long proved its accuracy in estimating CO, and is not influenced by temperature changes...
May 25, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28497934/cerebral-autoregulation-monitoring-in-acute-traumatic-brain-injury-what-s-the-evidence
#18
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
#19
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
#20
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
keyword
keyword
24290
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"