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Hemodynamic monitoring response

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https://www.readbyqxmd.com/read/28433951/transesophageal-echocardiography-in-the-evaluation-of-the-trauma-patient-a-trauma-resuscitation-transesophageal-echocardiography-exam
#1
REVIEW
Stefan W Leichtle, Andrew Singleton, Mandeep Singh, Matthew J Griffee, Joshua M Tobin
The point-of-care ultrasound exam has become an essential tool for hemodynamic monitoring and resuscitation in the trauma bay as well as the intensive care unit. Transthoracic ultrasound provides a dynamic assessment of cardiac function, volume status, and fluid responsiveness that offers potential advantage over traditional methods of hemodynamic monitoring. More recently, a focused transthoracic echocardiography exam was described to improve immediate resuscitation of severely injured patients in the trauma bay...
April 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28400500/differential-hemodynamic-and-respiratory-responses-to-right-and-left-cervical-vagal-nerve-stimulation-in-rats
#2
Harald M Stauss
Neuromodulation through vagal nerve stimulation (VNS) is currently explored for a variety of clinical conditions. However, there are no established VNS parameters for animal models of human diseases, such as hypertension. Therefore, the aim of this study was to assess hemodynamic and respiratory responses to right- or left-sided cervical VNS in a hypertensive rat model. Anesthetized stroke-prone spontaneously hypertensive rats were instrumented for arterial blood pressure and heart rate monitoring and left- or right-sided VNS Cervical VNS was applied through bipolar coil electrodes...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28398362/-the-relationship-between-natriuretic-peptides-and-neprilysin-pathways-the-clinical-simplification-against-the-complexity-of-biological-systems
#3
Giuseppe Di Tano, Aldo Clerico
A large body of evidence supports the use of natriuretic peptides (brain natriuretic peptide [BNP] and N-terminal proBNP [NT-proBNP]) for the evaluation and management of patients with heart failure over time. Elevated values reflect an enhanced counterregulatory response to hemodynamic stress and are indicative of heart failure severity, thus predicting prognosis. The clinical relevance and result interpretation of natriuretic peptides for monitoring therapy are still debated, and our understanding of their complex nature is still far from being complete...
February 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28393773/impact-of-dexmedetomidine-on-hemodynamic-changes-during-and-after-coronary-artery-bypass-grafting
#4
Morteza Hashemian, Mehdi Ahmadinejad, Seyed Amir Mohajerani, Alireza Mirkheshti
OBJECTIVE: To determine the effect of dexmedetomidine (Dex) on hemodynamic changes during cardiopulmonary pump and postoperative period in coronary artery bypass grafting (CABG). METHODS AND DESIGN: This study is designed as a double-blinded, randomized clinical trial. SETTING: University hospital and single center. PARTICIPANTS: patients candidate for elective CABG. INTERVENTION: Dex 0.5 μg/kg/h or placebo was infused from the initiation of anesthesia up to extubation in Intensive Care Unit (ICU)...
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
#5
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/28386576/functional-near-infrared-spectroscopy-study-on-tonic-pain-activation-by-cold-pressor-test
#6
Zeinab Barati, Issa Zakeri, Kambiz Pourrezaei
Functional near-infrared spectroscopy (fNIRS) has recently been suggested for monitoring cortical hemodynamic response to experimental and clinical acute pain. However, the hemodynamic response to a tonic, noxious cold stimulus, and its relation with subjective pain sensation is not fully characterized. We investigated the relationship between pain threshold and tolerance and the evoked hemodynamic response to cold pressor tests (CPTs) at varying intensities and explored the gender effect. Twenty-one healthy individuals (10 males and 11 females) performed four CPTs at 1°C, 5°C, 10°C, and 15°C...
January 2017: Neurophotonics
https://www.readbyqxmd.com/read/28380030/reduced-left-precentral-regional-responses-in-patients-with-major-depressive-disorder-and-history-of-suicide-attempts
#7
Noa Tsujii, Wakako Mikawa, Emi Tsujimoto, Toru Adachi, Atsushi Niwa, Hisae Ono, Osamu Shirakawa
Previous neuroimaging studies have revealed frontal and temporal functional abnormalities in patients with major depressive disorder (MDD) and a history of suicidal behavior. However, it is unknown whether multi-channel near-infrared spectroscopy (NIRS) signal changes among individuals with MDD are associated with a history of suicide attempts and a diathesis for suicidal behavior (impulsivity, hopelessness, and aggression). Therefore, we aimed to explore frontotemporal hemodynamic responses in depressed patients with a history of suicide attempts using 52-channel NIRS...
2017: PloS One
https://www.readbyqxmd.com/read/28374725/-the-spa-and-health-resort-based-treatment-of-the-women-of-various-employments-presenting-with-arterial-hypertension
#8
E L Apsheva, A A El'garov, M A Kalmykova, M A El'garov
AIM: The objective of the present study was to evaluate the effectiveness of balneotherapy for the women of various employments presenting with arterial hypertension. MATERIAL AND METHODS: The study included 57 women with stage I (n=29) and II (n=28) hypertension. One study group was comprised of 28 female motor drivers including taxi-drivers (n=12), personal car drivers (n=7), and trolleybus drivers (n=9) at the mean age of 46,2±6,9 years suffering from occupational emotional stress (OES) and systematic psychoemotional tension (PET)...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28366285/a-review-of-hemodynamic-monitoring-techniques-methods-and-devices-for-the-emergency-physician
#9
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/28363617/exploring-the-best-predictors-of-fluid-responsiveness-in-patients-with-septic-shock
#10
Nianfang Lu, Xiuming Xi, Li Jiang, Degang Yang, Kai Yin
OBJECTIVE: To evaluate respiratory variations in carotid and brachial peak velocity and other hemodynamic parameters to predict responsiveness to fluid challenge. METHODS: A prospective observational study was performed on mechanically ventilated patients with septic shock. Outcomes included the measurements of central venous pressure, intrathoracic blood volume index, stroke volume variation (SVV), pleth variability index(PVI), and ultrasound assessments of respiratory variations in inferior vena cava diameter (ΔIVC), carotid Doppler peak velocity (ΔCDPV), and brachial artery peak velocity (ΔVpeak brach)...
March 22, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28323719/passive-leg-raising-for-assessment-of-volume-responsiveness-a-review
#11
Jaume Mesquida, Guillem Gruartmoner, Ricard Ferrer
PURPOSE OF REVIEW: To evaluate the existing evidence on the passive leg raising (PLR) test for fluid responsiveness prediction. RECENT FINDINGS: It has been well established that either insufficient or excessive fluid administration derives in worse outcomes in critically ill patients, highlighting that a more accurate assessment of fluid management is required. Accordingly, several cardiovascular indices have been tested to improve our ability to predict patients' response to fluid loading at the bedside, the so-called functional hemodynamic monitoring...
March 20, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28301888/geburtshilfe-an%C3%A3-sthesie-bei-fetaler-chirurgie
#12
Emmanuel Schneck, Christian Koch, Christoph Arens, Rainer Schürg, Thomas Zajonz, Anastasiia Khaleeva, Thomas Kohl, Markus A Weigand, Michael Sander
Due to the responsibility for the mother and the unborn child, fetal surgery represents a challenging task for the anesthesiologist. Maternal changes during pregnancy have to be considered as well as the fetal physiology and the surgeon's needs. Main principles of the anesthesiological management of fetal surgery include the stabilization of the mean arterial pressure in order to preserve a sufficient placental blood flow, sustainment of an adequate oxygenation and ventilation as well as thorough temperature surveillance...
March 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/28298788/effects-of-lignocaine-administered-intravenously-or-intratracheally-on-airway-and-hemodynamic-responses-during-emergence-and-extubation-in-patients-undergoing-elective-craniotomies-in-supine-position
#13
Tabasum Shabnum, Zulfiqar Ali, Imtiaz Ahmad Naqash, Aabid Hussain Mir, Khan Azhar, Syed Amer Zahoor, Abdul Waheed Mir
INTRODUCTION: Sympathoadrenergic responses during emergence and extubation can lead to an increase in heart rate (HR) and blood pressure whereas increased airway responses may lead to coughing and laryngospasm. The aim of our study was to compare the effects of lignocaine administered intravenously (IV) or intratracheally on airway and hemodynamic responses during emergence and extubation in patients undergoing elective craniotomies. METHODOLOGY: Sixty patients with physical status American Society of Anaesthesiologists Classes I and II aged 18-70 years, scheduled to undergo elective craniotomies were included...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28298757/low-dose-dexmedetomidine-attenuates-hemodynamic-response-to-skull-pin-holder-application
#14
Shwethashri Ramaprasannakumar Kondavagilu, Vinayak Seenappa Pujari, Mohan V R Chadalawada, Yatish Bevinguddaiah
BACKGROUND: The application of skull pin holder elicits an adverse hemodynamic response that can be deleterious; there are many drugs that have been used to attenuate this response. We have conducted this study to evaluate the efficacy of intravenous (i.v.) dexmedetomidine on attenuation of hemodynamic responses to skull pin head holder application and to compare the effectiveness of two doses of i.v. dexmedetomidine (1 μg/kg and 0.5 μg/kg bolus). MATERIALS AND METHODS: Ninety American Society of Anesthesiologists physical Status I-III patients undergoing craniotomy were randomized into three groups of thirty each...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28298034/a-protocol-for-postoperative-admission-of-elective-craniotomy-patients-to-a-non-icu-or-step-down-setting
#15
Jeffrey E Florman, Deborah Cushing, Lynne A Keller, Anand I Rughani
OBJECTIVE Selecting the appropriate patients undergoing craniotomy who can safely forgo postoperative intensive care unit (ICU) monitoring remains a source of debate. Through a multidisciplinary work group, the authors redefined their institutional care process for postoperative monitoring of patients undergoing elective craniotomy to include transfer from the postanesthesia care unit (PACU) to the neurosurgical floor. The hypothesis was that an appropriately selected group of patients undergoing craniotomy could be safely managed outside the ICU in the postoperative period...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28294444/effect-of-change-in-posture-on-maternal-functional-hemodynamics-at-35-37-weeks-gestation
#16
Gavin P Guy, Hua Z Ling, Mirian Machuca, Liona C Poon, Kypros H Nicolaides
OBJECTIVE: To evaluate the effect of posture change from the supine to sitting position and before and after passive leg raising on maternal functional hemodynamics in pregnant women at 35-37 weeks' gestation and to compare the changes in pregnancies that subsequently developed preeclampsia (PE) and gestational hypertension (GH) to those who remained normotensive. METHODS: In 3,013 singleton pregnancies at 35-37 weeks' gestation maternal cardiovascular parameters were measured using an automated non-invasive cardiac monitor...
March 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28270997/in-vivo-imaging-of-hepatic-hemodynamics-and-light-scattering-property-during-ischemia-reperfusion-in-rats-based-on-spectrocolorimetry
#17
Sharmin Akter, Satoko Kawauchi, Shunichi Sato, Suefumi Aosasa, Junji Yamamoto, Izumi Nishidate
A red-green-blue camera-based imaging method is proposed for estimating spatial maps of concentrations of oxyhemoglobin (CHbO), deoxyhemoglobin (CHbR), total hemoglobin (CHbT), tissue oxygen saturation (StO2), and scattering power (b) in liver tissue. Hemodynamic responses to hepatic ischemia-reperfusion of in vivo rat liver tissues induced by portal triad occlusion were evaluated. Upon portal triad occlusion, this method yielded images of decreased CHbO, CHbT, StO2, and b, and increased CHbR followed by a progressive increase in CHbO and StO2 during reperfusion...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28269689/designing-and-testing-a-wearable-wireless-fnirs-patch
#18
Mohammadreza Abtahi, Gozde Cay, Manob Jyoti Saikia, Kunal Mankodiya
Optical brain monitoring using near infrared (NIR) light has got a lot of attention in order to study the complexity of the brain due to several advantages as oppose to other methods such as EEG, fMRI and PET. There are a few commercially available functional NIR spectroscopy (fNIRS) brain monitoring systems, but they are still non-wearable and pose difficulties in scanning the brain while the participants are in motion. In this work, we present our endeavors to design and test a low-cost, wireless fNIRS patch using NIR light sources at wavelengths of 770 and 830nm, photodetectors and a microcontroller to trigger the light sources, read photodetector's output and transfer data wirelessly (via Bluetooth) to a smart-phone...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268404/a-temperature-controlled-glove-with-non-invasive-arterial-pulse-sensing-for-active-neuro-vascular-assessment
#19
Andrew M Carek, Omer T Inan
A non-invasive, active neuro-vascular assessment system was developed using a modified temperature-controlled glove and feedback techniques. The glove incorporates local heating and cooling of the hand using multi-point skin temperature measurements as feedback, and thereby induces local and central mechanisms involved in thermoregulation. Electrocardiogram (ECG), photoplethysmogram (PPG) and non-invasive finger-cuff based blood pressure (BP) measurements were used to monitor electrophysiology and hemodynamic changes in response to temperature modulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268314/a-telemonitoring-platform-for-the-investigation-of-blood-pressure-profiles-in-pacemaker-patients
#20
G Calcagnini, E Mattei, R Quaglione, E De Ruvo, G Biancalana, G Pavone, A Gargaro, L Calo, F Ammirati, F Censi
Rate responsive pacemakers (PM) use different strategies to adapt the patient paced rate, with the aim of having the best hemodynamic performance in response to internal or external conditions. Closed-loop stimulation (CLS) uses intracardiac impedance as a sensor principle. The evaluation of impact of different pacing modalities and technologies on the blood pressure (BP) profiles is mainly investigated in short-term laboratory settings, mainly due to the need of reliable daily-based BP values. The impact of CLS pacing on systemic blood pressure (BP) has been studied on short term basis, but data on long term effects are scarse...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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