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Hemodynamic monitoring

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https://www.readbyqxmd.com/read/28431383/protocolized-hyperventilation-enhances-electroconvulsive-therapy
#1
Aida de Arriba-Arnau, Antonia Dalmau, Virginia Soria, Neus Salvat-Pujol, Carmina Ribes, Ana Sánchez-Allueva, José Manuel Menchón, Mikel Urretavizcaya
BACKGROUND: Hyperventilation is recommended in electroconvulsive therapy (ECT) to enhance seizures and to increase patients' safety. However, more evidence is needed regarding its effects and the optimum method of application. METHODS: This prospective study involving 21 subjects compared two procedures, protocolized hyperventilation (PHV) and hyperventilation as usual (HVau), applied to the same patient in two consecutive sessions. Transcutaneous partial pressure of carbon dioxide (TcPCO2) was measured throughout all sessions...
April 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28430315/adding-access-blood-flow-surveillance-reduces-thrombosis-and-improves-arteriovenous-fistula-patency-a-randomized-controlled-trial
#2
Inés Aragoncillo, Soraya Abad, Silvia Caldés, Yésika Amézquita, Almudena Vega, Antonio Cirugeda, Cristina Moratilla, José Ibeas, Ramón Roca-Tey, Cristina Fernández, Nicolás Macías, Borja Quiroga, Ana Blanco, Maite Villaverde, Caridad Ruiz, Belén Martín, Asunción M Ruiz, Jara Ampuero, Fernando de Alvaro, Juan M López-Gómez
PURPOSE: Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. METHODS: We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compare QA-based surveillance and pre-emptive repair of subclinical stenosis with standard monitoring/surveillance techniques in prevalent mature AVFs. AVFs were randomized to either the control group (surveillance based on classic alarm criteria; n = 104) or to the QA group (QA measured quarterly using Doppler ultrasound [M-Turbo®] and ultrasound dilution [Transonic®] added to classic surveillance; n = 103)...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430036/paradoxical-cerebrovascular-hemodynamic-changes-with-nicardipine
#3
Shouri Lahiri, Mani Nezhad, Konrad H Schlick, Brenda Rinsky, Axel Rosengart, Stephan A Mayer, Patrick D Lyden
OBJECTIVE Intravenous nicardipine is commonly used for blood pressure reduction in patients with acute stroke. However, few studies have described its effects on cerebrovascular hemodynamics as measured by transcranial Doppler (TCD) waveform analysis and pulsatility index (PI). In this study, the authors report examples of a consistent but paradoxical finding associated with nicardipine that suggests intracranial vasoconstriction, contrary to what is expected from a vasodilator. METHODS The data presented are from a convenience sample of patients who underwent TCD monitoring before, after, or during nicardipine administration...
April 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28428757/circadian-rhythm-in-kidney-tissue-oxygenation-in-the-rat
#4
Tonja W Emans, Ben J Janssen, Jaap A Joles, C T Paul Krediet
Blood pressure, renal hemodynamics, electrolyte, and water excretion all display diurnal oscillation. Disturbance of these patterns is associated with hypertension and chronic kidney disease. Kidney oxygenation is dependent on oxygen delivery and consumption that in turn are determined by renal hemodynamics and metabolism. We hypothesized that kidney oxygenation also demonstrates 24-h periodicity. Telemetric oxygen-sensitive carbon paste electrodes were implanted in Sprague-Dawley rats (250-300 g), either in renal medulla (n = 9) or cortex (n = 7)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28426506/applications-of-noninvasive-hemodynamic-monitoring-in-obstetric-management
#5
John T Sullivan
Clinicians managing obstetric patients are dependent on valid hemodynamic measurements to guide care. Heart rate and noninvasive blood pressure guide most current care. New hemodynamic monitors are being used to report research findings and are being investigated by clinicians for their value to supplement standard monitoring. These include arterial pulse contour analysis, Doppler velocimetry, and bioimpedance among others. This chapter serves to present these new devices with a critical review of their advantages and limitations, and most importantly the validity of their measurements...
June 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28421173/cerebral-autoregulation-brain-injury-and-the-transitioning-premature-infant
#6
REVIEW
Zachary A Vesoulis, Amit M Mathur
Improvements in clinical management of the preterm infant have reduced the rates of the two most common forms of brain injury, such as severe intraventricular hemorrhage and white matter injury, both of which are contributory factors in the development of cerebral palsy. Nonetheless, they remain a persistent challenge and are associated with a significant increase in the risk of adverse neurodevelopment outcomes. Repeated episodes of ischemia-reperfusion represent a common pathway for both forms of injury, arising from discordance between systemic blood flow and the innate regulation of cerebral blood flow in the germinal matrix and periventricular white matter...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28418937/clinical-validation-of-a-new-wrist-continuous-noninvasive-hemodynamic-monitoring-system-in-comparison-with-invasive-radial-artery-measurement
#7
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/28415162/value-of-doppler-evaluation-of-physically-abnormal-fistula-hemodynamic-guidelines-and-access-outcomes
#8
Seong Cho, Yu-Ji Lee, Sung-Rok Kim
Background/Aims: The strategy of access care at out center involves the use of ultrasound (USG) in case of physical examination (PE) abnormality. USG determines the need of angiography. This study investigated the possible association between the need for percutaneous transluminal angioplasty (PTA) and hemodynamic parameters of USG. The study also assessed the effects of this monitoring strategy on outcomes in comparison with a historical control. Methods: A retrospective study of the medical records of 127 patients (65 PTA, 62 non-PTA) was conducted...
April 18, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28411901/the-role-of-implantable-hemodynamic-monitors-to-manage-heart-failure
#9
REVIEW
William T Abraham
Heart failure is associated with high rates of hospitalization and rehospitalization, resulting in substantial clinical and economic burden. Current approaches to monitoring patients with heart failure have done little to reduce these high rates of heart failure hospitalization. Implantable hemodynamic monitors have been developed to remotely provide direct measurement of intracardiac and pulmonary artery pressures in ambulatory patients with heart failure. These devices have the potential to direct day-to-day management of patients with heart failure to reduce hospitalization rates...
May 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/28410821/-analgesia-nociception-index-for-perioperative-analgesia-monitoring-in-spinal-surgery
#10
Guldem Turan, Arzu Yıldırım Ar, Yıldız Yigit Kuplay, Oznur Demiroluk, Mustafa Gazi, Nur Akgun, Erhan Celikoglu
BACKGROUND AND OBJECTIVES: The Analgesia Nociception Index is an index used to measure the levels of pain, sympathetic system activity and heart rate variability during general anesthesia. In our study, Analgesia Nociception Index monitoring in two groups who had undergone spinal stabilization surgery and were administered propofol-remifentanil (Total Intravenous Anesthesia) and sevoflurane-remifentanyl anesthesia was compared regarding its significance for prediction of postoperative early pain...
April 11, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28410259/central-venous-catheter-placement-in-the-left-internal-jugular-vein-complicated-by-perforation-of-the-left-brachiocephalic-vein-and-massive-hemothorax-a-case-report
#11
Lindsay R Wetzel, Priyesh R Patel, Nicholas L Pesa
An elderly male presented for emergent repair of a ruptured abdominal aortic aneurysm. For anticipated volume resuscitation, vasopressor administration, and hemodynamic monitoring, a large-bore central venous catheter was placed in the left internal jugular vein under ultrasound guidance before surgical incision. Initially, there were no readily apparent signs of venous perforation. However, a massive left hemothorax developed because of perforation of the brachiocephalic vein and violation of the pleural space...
April 13, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28409759/influence-of-central-hemodynamics-on-vv-ecmo-oxygen-delivery-in-neonatal-animal-model
#12
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...
April 8, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28407258/a-cardiovascular-prescreening-protocol-for-unmonitored-in-office-laryngology-procedures
#13
Lyndsay L Madden, John Ward, Anne Ward, VyVy N Young, Libby J Smith, David G Lott, Paul C Bryson, Matthew S Clary, Phillip A Weissbrod, Jonathan M Bock, Joel H Blumin, Clark A Rosen
OBJECTIVES: Currently, there are no cardiovascular (CV) preprocedure screening parameters for patients undergoing in-office laryngeal procedures (IOLP). Studies have shown significant changes in CV measures for IOLP. The aim was to develop and evaluate a pre-IOLP CV screening protocol. METHODS: Review of IOLP literature and consultation with an anesthesiologist and cardiologist led to the development of CV parameters and questions related to four metabolic equivalents (METS) of work as a patient-screening tool before IOLP...
April 13, 2017: Laryngoscope
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
#14
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/28401152/hemodynamic-analysis-of-pediatric-septic-shock-and-cardiogenic-shock-using-transpulmonary-thermodilution
#15
En-Pei Lee, Shao-Hsuan Hsia, Jainn-Jim Lin, Oi-Wa Chan, Jung Lee, Chia-Ying Lin, Han-Ping Wu
Septic shock and cardiogenic shock are the two most common types of shock in children admitted to pediatric intensive care units (PICUs). The aim of the study was to investigate which hemodynamic variables were associated with mortality in children with shock. We retrospectively analyzed 50 children with shock (37 septic shock cases and 13 cardiogenic shock cases) in the PICU and monitored their hemodynamics using transpulmonary thermodilution from 2003 to 2016. Clinical factors were analyzed between the patients with septic and cardiogenic shock...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28400500/differential-hemodynamic-and-respiratory-responses-to-right-and-left-cervical-vagal-nerve-stimulation-in-rats
#16
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/28398932/brachial-arterial-pressure-monitoring-during-cardiac-surgery-rarely-causes-complications
#17
Asha Singh, Bobby Bahadorani, Brett J Wakefield, Natalya Makarova, Priya A Kumar, Michael Zhen-Yu Tong, Daniel I Sessler, Andra E Duncan
BACKGROUND: Brachial arterial catheters better estimate aortic pressure than radial arterial catheters but are used infrequently because complications in a major artery without collateral flow are potentially serious. However, the extent to which brachial artery cannulation promotes complications remains unknown. The authors thus evaluated a large cohort of cardiac surgical patients to estimate the incidence of related serious complications. METHODS: The institutional Society of Thoracic Surgeons Adult Cardiac Surgery Database and Perioperative Health Documentation System Registry of the Cleveland Clinic were used to identify patients who had brachial artery cannulation between 2007 and 2015...
April 10, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28398362/-the-relationship-between-natriuretic-peptides-and-neprilysin-pathways-the-clinical-simplification-against-the-complexity-of-biological-systems
#18
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/28394880/the-variation-of-hemodynamic-parameters-through-picco-in-the-early-stage-after-severe-burns
#19
Chen Gong, Fang Zhang, Lei Li, Fang He, Gong-Cheng Liu, Shi-Hui Zhu, Guang-Yi Wang, Zhao-Fan Xia
To investigate early hemodynamics of severely burned patients via PiCCO and to discuss clinical significance of hemodynamic monitoring for burn shock resuscitation, 55 extensive burn patients were enrolled in this retrospective study. The fluid resuscitation was guided according to Chinese General Formula and adjusted with urinary output of 0.5-1.0 ml/h/kg as a resuscitation goal. All patients were diagnosed within a relatively stable condition during burn shock stage, and they received PiCCO monitoring within 6 hours after burn...
April 3, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28394443/noninvasive-predictors-of-perioperative-atrial-arrhythmias-in-patients-with-tetralogy-of-fallot-undergoing-pulmonary-valve-replacement
#20
Daniel Cortez, Waseem Barham, Emily Ruckdeschel, Nandita Sharma, Anthony C McCanta, Johannes von Alvensleben, William H Sauer, Kathryn K Collins, Joseph Kay, Sonali Patel, Duy T Nguyen
BACKGROUND: Patients with tetralogy of Fallot (TOF) have increased risk of atrial arrhythmias. HYPOTHESIS: A measure of atrial dispersion, the P-wave vector magnitude (Pvm), can identify patients at risk for perioperative atrial flutter (AFL) or intra-atrial re-entrant tachycardia (IART) in a large TOF cohort. METHODS: We performed a blinded, retrospective analysis of 158 TOF patients undergoing pulmonary valve replacement between 1997 and 2015...
April 10, 2017: Clinical Cardiology
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