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noninvasive hemodynamic monitoring

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https://www.readbyqxmd.com/read/28106356/accuracy-of-non-invasive-hemoglobin-monitoring-by-pulse-co-oximeter-during-liver-transplantation
#1
Gulay Erdogan Kayhan, Yusuf Z Colak, Mukadder Sanli, Muharrem Ucar, Huseyin I Toprak
BACKGROUND: Hemoglobin level monitoring is essential during liver transplantation (LT) due to substantial blood loss. We evaluated the accuracy of noninvasive and continuous hemoglobin monitoring (SpHb) obtained by a transcutaneous spectrophotometry-based technology (Masimo Corporation, Irvine, CA) compared with conventional laboratory Hb measurement (HbL) during LT. Additionally, we made subgroup analyses for distinct surgical phases that have special features and hemodynamic problems and thus may affect the accuracy of SpHb...
January 20, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28099422/relationship-between-perfusion-index-and-patent-ductus-arteriosus-in-preterm-infants
#2
Enrique Gomez-Pomar, Majd Makhoul, Philip M Westgate, Katrina T Ibonia, Abhijit Patwardhan, Peter J Giannone, Henrietta Bada, Elie G Abu Jawdeh
BACKGROUND: Perfusion index (PI) is a noninvasive measure of perfusion. ΔPI (difference between pre and post-ductal PI) may identify hemodynamically significant PDA. However, studies are limited to brief and intermittent ΔPI sampling. Our objective is to assess the value of continuous high resolution ΔPI monitoring in the diagnosis of PDA. METHODS: Continuous ΔPI monitoring in preterm infants was prospectively performed using two high resolution pulse oximeters...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28093805/heartware-ventricular-assist-device-implantation-in-patients-with-fontan-physiology
#3
Bartlomiej R Imielski, Robert A Niebler, Steven J Kindel, Ronald K Woods
We aim to describe the clinical course of a series of patients with hypoplastic left heart syndrome and refractory systolic heart failure supported with a HeartWare ventricular assist device (HVAD) following Fontan palliation. This is a retrospective review of three consecutive patients supported with a HVAD following Fontan palliation through February 2016. Data include patient characteristics, operative variables, postimplantation hemodynamic/device parameters, event outcomes, and duration of HVAD support...
January 2017: Artificial Organs
https://www.readbyqxmd.com/read/28059848/hemodynamic-monitoring-in-thoracic-surgical-patients
#4
Jacob Raphael, Lindsay A Regali, Robert H Thiele
PURPOSE OF REVIEW: This article reviews the technology and clinical data describing hemodynamic monitoring devices available to anesthesiologists and intensivists caring for patients undergoing thoracic surgical procedures, so that they may better utilize available technology to improve outcomes in this high-risk surgical population. RECENT FINDINGS: Noninvasive stroke volume monitors are based on several different technology platforms, all of which have distinct performance characteristics...
January 3, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28043670/vascular-aging-and-hypertension-implications-for-the-clinical-application-of-central-blood-pressure
#5
REVIEW
Hao-Min Cheng, Sungha Park, Qifang Huang, Satoshi Hoshide, Ji-Guang Wang, Kazuomi Kario, Chang-Gyu Park, Chen-Huan Chen
Vascular aging may be responsible for the high residual lifetime risk for hypertension in the middle-aged and elderly individuals. Increased arterial stiffness and wave reflection has been recognized as the dominant hemodynamic manifestations of vascular aging, and both are major determinants of central blood pressure (BP) and independent predictors for incident hypertension. Because central BP is strongly linearly associated with age, it can be regarded as an integrated marker for vascular aging. Central BP can be measured noninvasively using various techniques, including the convenient cuff-based oscillometric central BP monitors...
December 27, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28041606/acquisition-retention-and-transfer-of-simulated-laparoscopic-tasks-using-fnir-and-a-contextual-interference-paradigm
#6
Patricia A Shewokis, Faiz U Shariff, Yichuan Liu, Hasan Ayaz, Andres Castellanos, D Scott Lind
BACKGROUND: Using functional near infrared spectroscopy, a noninvasive, optical brain imaging tool that monitors changes in hemodynamics within the prefrontal cortex (PFC), we assessed performance and cognitive effort during the acquisition, retention and transfer of multiple simulated laparoscopic tasks by novice learners within a contextual interference paradigm. METHODS: Third-year medical students (n = 10) were randomized to either a blocked or random practice schedule...
December 1, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/28030449/hemodynamic-monitoring-in-thoracic-surgical-patients
#7
Jacob Raphael, Lindsay A Regali, Robert H Thiele
PURPOSE OF REVIEW: This article reviews the technology and clinical data describing hemodynamic monitoring devices available to anesthesiologists and intensivists caring for patients undergoing thoracic surgical procedures, so that they may better utilize available technology to improve outcomes in this high-risk surgical population. RECENT FINDINGS: Noninvasive stroke volume monitors are based on several different technology platforms, all of which have distinct performance characteristics...
February 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27986335/presenting-phenotypes-of-acute-heart-failure-patients-in-the-emergency-department-identification-and-implications
#8
Richard M Nowak, Brian P Reed, Salvatore DiSomma, Prabath Nanayakkara, Michele Moyer, Scott Millis, Phillip Levy
BACKGROUND: There is little known about the baseline hemodynamic (HD) profiles (beyond pulse/blood pressure) of patients presenting to the Emergency department (ED) with acute heart failure (AHF). Assessing these baseline parameters could help differentiate underlying HD phenotypes which could be used to develop specific phenotypic specific approaches to patient care. METHODS: Patients with suspected AHF were enrolled in the PREMIUM (Prognostic Hemodynamic Profiling in the Acutely Ill Emergency Department Patient) multinational registry and continuous HD monitoring was initiated on ED presentation using noninvasive finger cuff technology (Nexfin, BMEYE, Edwards Lifesciences, Irvine, California)...
December 8, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27974870/hemodynamic-response-to-upper-airway-obstruction-in-hypertensive-and-normotensive-pregnant-women
#9
John Reid, Riley A Glew, Joe Mink, John Gjevre, Mark Fenton, Robert Skomro, Femi Olatunbosun
Background. Mild obstructive sleep apnea is common in pregnancy and may have an exacerbating role in gestational hypertension, although currently the interaction between these two diseases is uncertain. Methods. We analyzed 43 pregnant subjects, 28 with gestational hypertension (GH) and 15 with normal healthy pregnancy, by level I polysomnography. Additionally, diastolic and systolic blood pressure changes in response to obstructive respiratory events were measured by noninvasive beat-by-beat monitoring. We also assessed a subgroup (n = 27) of women with respiratory disturbance indexes <5, for blood pressure responses to very subtle obstructive respiratory disturbances ("airflow reductions")...
2016: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/27925417/effects-of-temperature-on-multiparametric-evaluation-of-hindlimb-ischemia-with-dynamic-fluorescence-imaging
#10
Wenjuan Cai, Huizhi Guang, Chuangjian Cai, Jianwen Luo
Quantitative evaluation of hindlimb ischemia is essential for early diagnosis and therapy of peripheral arterial disease (PAD). Dynamic imaging using near-infrared (NIR) fluorophore indocyanine green (ICG) is a noninvasive and effective tool to monitor multiple vascular parameters including perfusion rate (PR), perfusion vascular density (PVD) and hemodynamics. It has been previously demonstrated that temperature changes could lead to significant variations of blood flow rate and vascular perfusion. In this paper, multiparametric evaluation of hindlimb ischemia was performed at different temperatures...
December 7, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27907966/getting-rid-of-weakness-in-the-icu-an-updated-approach-to-the-acute-management-of-myasthenia-gravis-and-guillain-barr%C3%A3-syndrome
#11
Alexis A Lizarraga, Karlo J Lizarraga, Michael Benatar
After prompt diagnosis, severe myasthenia gravis and Guillain-Barré syndrome (GBS) usually require management in the intensive care unit. In the myasthenic patient, recognition of precipitating factors is paramount, and frequent monitoring of bulbar, upper airway, and/or respiratory muscle strength is needed to identify impending myasthenic crisis. Noninvasive ventilation can be attempted prior to intubation and mechanical ventilation in the setting of respiratory failure. Cholinesterase inhibitors should be discontinued, but resumed prior to extubation, and steroid dosage could be increased once the airway is secured...
December 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27849773/129-routine-use-of-noninvasive-cardiac-output-monitor-to-post-sah-hemodynamic-management-in-neuro-icu
#12
Kazumasu Sasaki, Tatsushi Mutoh, Tomoko Mutoh, Yasuyuki Taki, Tatsuya Ishikawa
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27813279/oxygenation-dynamics-of-sepsis-patients-undergoing-far-infrared-intervention-based-on-near-infrared-spectroscopy
#13
Kuei-Hung Chuang, Ming-Lung Chuang, Sung-Kien Sia, Chia-Wei Sun
Near-infrared spectroscopy (NIRS; continuous wave type) is a noninvasive tool for detecting the relative change of oxyhemoglobin and deoxyhemoglobin. To make this change, intervention methods must be applied. This study determined the hemodynamics of 44 healthy participants and 35 patients with sepsis during exposure to FIR as a novel physical intervention approach. Local microcirculation of their brachioradialis was monitored during exposure and recovery through NIRS. The variations in blood flow and microvascular reaction were determined by conducting paired and unpaired t tests...
November 4, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27755489/the-use-of-epinephrine-in-caudal-anesthesia-increases-stroke-volume-and-cardiac-output-in-children
#14
Chang Amber Liu, Jinghu Sui, Charles J Coté, Thomas A Anderson
BACKGROUND AND OBJECTIVES: Caudal anesthesia is a common and effective regional anesthesia technique in pediatric patients. The addition of epinephrine to local anesthetics in caudal anesthesia is a frequent practice; however, changes in hemodynamic and cardiac parameters produced by epinephrine in caudal anesthesia are not well studied. Using data collected with the ICON noninvasive cardiac output monitor, we examined the hemodynamic changes associated with the administration of epinephrine containing local anesthetics during caudal anesthesia in children...
November 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27717357/perfusion-index-assessment-during-transition-period-of-newborns-an-observational-study
#15
Sezin Unal, Ebru Ergenekon, Selma Aktas, Serdar Beken, Nilgun Altuntas, Ebru Kazanci, Ferit Kulali, Ibrahim M Hirfanoglu, Esra Onal, Canan Turkyilmaz, Esin Koc, Yildiz Atalay
BACKGROUND: Perfusion index (PI) is becoming a part of clinical practice in neonatology to monitor peripheral perfusion noninvasively. Hemodynamic and respiratory changes occur in newborns during the transition period after birth in which peripheral perfusion may be affected. Tachypnea is a frequent symptom during this period. While some tachypneic newborns get well in less than 6 h and diagnosed as "delayed transition", others get admitted to intensive care unit which transient tachypnea of newborn (TTN) being the most common diagnosis among them...
October 7, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27625245/role-of-transcranial-doppler-in-cerebrovascular-disease
#16
Amit A Kulkarni, Vijay K Sharma
Transcranial Doppler (TCD) is the only noninvasive modality for the assessment of real-time cerebral blood flow. It complements various anatomic imaging modalities by providing physiological-flow related information. It is relatively cheap, easily available, and can be performed at the bedside. It has been suggested as an essential component of a comprehensive stroke centre. In addition to its importance in acute cerebrovascular ischemia, its role is expanding in the evaluation of cerebral hemodynamics in various disorders of the brain...
September 2016: Neurology India
https://www.readbyqxmd.com/read/27594392/influence-of-a-high-intensity-interval-training-session-on-peripheral-and-central-blood-pressure-at-rest-and-during-stress-testing-in-healthy-individuals
#17
Sascha Ketelhut, Florian Milatz, Walter Heise, Reinhard G Ketelhut
BACKGROUND: Regular physical activity is known to reduce arterial pressure (BP). In a previous investigation, we could prove that even a single bout of moderate-intensity continuous exercise (MICE) causes a prolonged reduction in BP. Whether high-intensity interval training (HIIT) has a favourable influence on BP, and therefore may be followed subjects and methods by a prolonged BP reduction, should be examined on the basis of blood pressure response after exercise and during a subsequent stress test...
September 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27553912/faster-rate-of-blood-volume-change-in-pediatric-hemodialysis-patients-impairs-cardiac-index
#18
Jessica J Geer, Shweta Shah, Eric Williams, Ayse Akcan Arikan, Poyyapakkam Srivaths
BACKGROUND: Intradialytic hypotension and myocardial stunning are proposed as contributing to the pathogenesis of increased cardiovascular disease burden and death in patients receiving maintenance hemodialysis (HD). Noninvasive cardiac output measurements provide a dynamic, real-time assessment of hemodynamic parameters. We investigated intradialytic changes in hemodynamic parameters in pediatric outpatients receiving chronic HD and determined patient and treatment risk factors associated with such intradialytic changes...
February 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27553703/state-of-the-art-monitoring-in-treatment-of-dengue-shock-syndrome-a-case-series
#19
Steven L Moulton, Jane Mulligan, Anon Srikiatkhachorn, Siripen Kalayanarooj, Greg Z Grudic, Sharone Green, Robert V Gibbons, Gary W Muniz, Carmen Hinojosa-Laborde, Alan L Rothman, Stephen J Thomas, Victor A Convertino
BACKGROUND: Early recognition and treatment of circulatory volume loss is essential in the clinical management of dengue viral infection. We hypothesized that a novel computational algorithm, originally developed for noninvasive monitoring of blood loss in combat casualties, could: (1) indicate the central volume status of children with dengue during the early stages of "shock"; and (2) track fluid resuscitation status. METHODS: Continuous noninvasive photoplethysmographic waveforms were collected over a 5-month period from three children of Thai ethnicity with clinical suspicion of dengue...
August 24, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27552801/cerebral-perfusion-monitoring-in-acute-care-surgery-current-and-perspective-use
#20
Hsin-I Tsai, Peter Chi-Ho Chung, Chao-Wei Lee, Huang-Ping Yu
INTRODUCTION: The technology near infrared spectroscopy (NIRS) has been utilized extensively in several clinical settings and one of which is in cerebral oximetry. This review will provide information on the technology, clinical applications and algorithm to follow when desaturation occurs. AREAS COVERED: The review will cover the technology of near infrared spectroscopy, cerebral oximetry and the utilization of cerebral oximetry in each clinical setting. Expert commentary: Cerebral oximetry provides a noninvasive measure of cerebral oxygenation, which when persistently declining, can serve as a warning sign of hemodynamic or metabolic compromise intraoperatively or a predictor of postoperative cognitive dysfunction...
September 2016: Expert Review of Medical Devices
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