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Hemodynamic review

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https://www.readbyqxmd.com/read/28729906/update-on-pediatric-sepsis-a-review
#1
REVIEW
Tatsuya Kawasaki
BACKGROUND: Sepsis is one of the leading causes of mortality among children worldwide. Unfortunately, however, reliable evidence was insufficient in pediatric sepsis and many aspects in clinical practice actually depend on expert consensus and some evidence in adult sepsis. More recent findings have given us deep insights into pediatric sepsis since the publication of the Surviving Sepsis Campaign guidelines 2012. MAIN TEXT: New knowledge was added regarding the hemodynamic management and the timely use of antimicrobials...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28728686/spontaneous-coronary-artery-dissection-associated-with-pregnancy
#2
Marysia S Tweet, Sharonne N Hayes, Elisabeth Codsi, Rajiv Gulati, Carl H Rose, Patricia J M Best
BACKGROUND: Spontaneous coronary artery dissection (SCAD) is the most common cause of pregnancy-associated myocardial infarction and remains poorly characterized. OBJECTIVES: This study sought to assess presentation, clinical factors, and outcomes of pregnancy-associated spontaneous coronary artery dissection (P-SCAD) compared with spontaneous coronary artery dissection not associated with pregnancy (NP-SCAD). METHODS: A Mayo Clinic registry was established in 2010 to include comprehensive retrospective and prospective SCAD data...
July 25, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28727900/head-midline-position-for-preventing-the-occurrence-or-extension-of-germinal-matrix-intraventricular-hemorrhage-in-preterm-infants
#3
REVIEW
Olga Romantsik, Maria Grazia Calevo, Matteo Bruschettini
BACKGROUND: Preterm birth is known to constitute the major risk factor for development of germinal matrix-intraventricular hemorrhage (GM-IVH). Head position may affect cerebral hemodynamics and thus may be involved indirectly in development of GM-IVH. Turning the head toward one side may functionally occlude jugular venous drainage on the ipsilateral side while increasing intracranial pressure and cerebral blood volume. Thus, it has been suggested that cerebral venous pressure is reduced and hydrostatic brain drainage improved if the patient is in supine midline position with the bed tilted 30°...
July 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28725211/critical-evaluation-of-the-lund-concept-for-treatment-of-severe-traumatic-head-injury-25%C3%A2-years-after-its-introduction
#4
REVIEW
Per-Olof Grände
When introduced in 1992, the Lund concept (LC) was the first complete guideline for treatment of severe traumatic brain injury (s-TBI). It was a theoretical approach, based mainly on general physiological principles-i.e., of brain volume control and optimization of brain perfusion and oxygenation of the penumbra zone. The concept gave relatively strict outlines for cerebral perfusion pressure, fluid therapy, ventilation, sedation, nutrition, the use of vasopressors, and osmotherapy. The LC strives for treatment of the pathophysiological mechanisms behind symptoms rather than just treating the symptoms...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28724611/tumor-necrosis-factor-alpha-kidney-function-and-hypertension
#5
Eamonn Mehaffey, Dewan Syed Abdul Majid
Hypertension is considered to be a low-grade inflammatory condition characterized by the presence of various pro-inflammatory cytokines. The inflammatory cytokine Tumor Necrosis Factor-alpha (TNF-α) is a constituent of the pro-inflammatory environment that is associated with salt-sensitive hypertension (SSH) and related renal injury. Elevated angiotensin II (AngII) and other factors such as oxidative stress conditions promote TNF-α formation. Many recent studies have provided evidence that TNF-α exerts a direct renal action by regulating hemodynamic and excretory function in the kidney...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28721547/the-effect-on-somatic-growth-of-surgical-and-catheter-treatment-of-secundum-atrial-septal-defects
#6
Meghan M Chlebowski, Hongying Dai, Stephen F Kaine
Historical studies suggest an association between atrial septal defect (ASD) and impaired growth with inconsistent improvement following closure. Limited data exist regarding the impact on growth in the era of transcatheter therapy. To evaluate the effect of closure on growth, we conducted a retrospective review of patients undergoing surgical or transcatheter closure during two time periods. Four hundred patients with isolated secundum ASD were divided into three cohorts: early surgical, contemporary surgical, and transcatheter...
July 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28721515/prolonged-intermittent-renal-replacement-therapy-in-children
#7
REVIEW
Rajiv Sinha, Sidharth Kumar Sethi, Timothy Bunchman, Valentine Lobo, Rupesh Raina
Wide ranges of age and weight in pediatric patients makes renal replacement therapy (RRT) in acute kidney injury (AKI) challenging, particularly in the pediatric intensive care unit (PICU), wherein children are often hemodynamically unstable. Standard hemodialysis (HD) is difficult in this group of children and continuous veno-venous hemofiltration/dialysis (CVVH/D) has been the accepted modality in the developed world. Unfortunately, due to cost constraints, CVVH/D is often not available and peritoneal dialysis (PD) remains the common mode of RRT in resource-poor facilities...
July 18, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28712906/a-comparison-of-pharmacologic-therapeutic-agents-used-for-the-reduction-of-intracranial-pressure-following-traumatic-brain-injury
#8
REVIEW
Ahmed M Alnemari, Brianna M Krafcik, Tarek R Mansour, Daniel Gaudin
OBJECTIVE: In neurotrauma care, a better understanding of treatments following traumatic brain injury (TBI) has led to a significant decrease in morbidity and mortality in this population. TBI represents a significant medical problem, and complications following TBI are associated with the initial injury and post-event intracranial processes such as elevated intracranial pressure (ICP) and brain edema. Consequently, appropriate therapeutic interventions are required to reduce brain tissue damage and improve cerebral perfusion...
July 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28709719/metformin-effects-on-the-heart-and-the-cardiovascular-system-a%C3%A2-review-of-experimental-and-clinical-data
#9
REVIEW
L Nesti, A Natali
BACKGROUND: Metformin, the eldest and most widely used glucose lowering drug, is likely to be effective also on cardiac and vascular disease prevention. Nonetheless, uncertainty still exists with regard to its effects on the cardiovascular system as a whole and specifically on the myocardium, both at the organ and cellular levels. METHODS: We reviewed the available data on the cardiac and vascular effects of metformin, encompassing both in vitro, either tissue or isolated organ, and in vivo studies in experimental animals and humans, as well as the evidence generated by major clinical trials...
May 10, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28708771/effect-of-clonidine-on-hemodynamic-responses-during-laparoscopic-cholecystectomy-a-systematic-review-and-meta-analysis
#10
Yi Zhang, Xi Zhang, Yu Wang, Jiefeng Zhang
BACKGROUND: Clonidine might be beneficial to the patients undergoing laparoscopic cholecystectomy. This meta-analysis focused on the influence of clonidine on hemodynamic responses in patients undergoing laparoscopic cholecystectomy. METHODS: We searched several databases including PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases. This meta-analysis included randomized controlled trials regarding the influence of clonidine versus placebo on laparoscopic cholecystectomy...
July 13, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28707302/dialysate-sodium-and-intradialytic-hypotension
#11
Wael F Hussein, Brigitte Schiller
Intradialytic hypotension (IDH) is a common complication in hemodialysis, particularly with the time and frequency constraints of standard session delivery in contemporary practice. High intradialytic weight gain (IDWG), high ultrafiltration rates (UFR), and frequent IDH are highly interlinked, and separately or together contribute to the high cardiovascular morbidity and mortality observed in the hemodialysis population. Using a lower concentration of sodium in the dialysate (D-Na) reduces sodium delivery to the patient during dialysis, and several studies reported the beneficial effect in controlling IDWG, UFR, and hypertension...
July 13, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28706587/management-of-ventricular-tachycardia-storm-in-patients-with-structural-heart-disease
#12
REVIEW
Daniele Muser, Pasquale Santangeli, Jackson J Liang
Electrical storm (ES) is a medical emergency characterized by repetitive episodes of sustained ventricular arrhythmias (VAs) in a limited amount of time (at least 3 within a 24-h period) leading to repeated appropriate implantable cardioverter defibrillator therapies. The occurrence of ES represents a major turning point in the natural history of patients with structural heart disease being associated with poor short- and long-term survival particularly in those with compromised left ventricular ejection fraction (LVEF) that can develop hemodynamic decompensation and multi-organ failure...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28705994/wearable-brain-imaging-with-multi-modal-physiological-recording
#13
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/28705079/how-to-define-the-hemodynamic-significance-of-an-equivocal-iliofemoral-artery-stenosis-review-of-literature-and-outcomes-of-an-international-questionnaire
#14
S W de Boer, Sgh Heinen, Daf van den Heuvel, F N van de Vosse, Jppm de Vries
Purpose The goal of the study was to review current literature regarding the diagnosis of equivocal (50-70%) iliofemoral artery stenosis and compare these findings with the daily practice of an international panel of endovascular experts. Methods The Medline Database was searched for relevant publications, and an electronic survey was sent to experts in the field covering the following topics: definition of an equivocal iliofemoral artery stenosis, angiographic visualization and investigation protocols of an equivocal stenosis, intra-arterial pressure measurements, and definition of hemodynamic significance of an equivocal iliofemoral artery stenosis using a physiologic measure...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28704819/electrical-cardiometry-to-monitor-cardiac-output-in-preterm-infants-with-patent-ductus-arteriosus-a-comparison-with-echocardiography
#15
Kai-Hsiang Hsu, Tai-Wei Wu, I-Hsyuan Wu, Mei-Yin Lai, Shih-Yun Hsu, Hsiao-Wen Huang, Tze-Yee Mok, Reyin Lien
BACKGROUND: Electrical cardiometry (EC) is an impedance-based monitoring that provides noninvasive cardiac output (CO) assessment. Through comparison to transthoracic echocardiography (Echo), the accuracy of EC has been verified. However, left-to-right patent ductus arteriosus (PDA) shunting is a concern because PDA shunts aortic flow to the pulmonary artery and may interfere with EC in measuring CO. OBJECTIVE: To determine the agreement between EC and Echo in preterm infants with a hemodynamically significant PDA (hsPDA)...
July 14, 2017: Neonatology
https://www.readbyqxmd.com/read/28699412/pressure-autoregulation-measurement-techniques-in-adult-tbi-part-ii-a-scoping-review-of-continuous-methods
#16
Frederick Adam Zeiler, Joseph Donnelly, Leanne Calviello, Peter Smieleweski, David Menon, Marek Czosnyka
To perform systematically a scoping review of the literature on commonly described continuous autoregulation measurement techniques in adult TBI. The goal was to provide an overview of methodology and comprehensive reference library of the available literature for each technique. Five separate small systematic reviews were conducted for each of the continuous techniques: pressure reactivity index (PRx), laser Doppler flowmetry (LDF), near infrared spectroscopy (NIRS) techniques, brain tissue oxygen tension (PbtO2), and thermal diffusion (TD) techniques...
July 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28696947/regional-blocks-carried-out-during-general-anesthesia-or-deep-sedation-myths-and-facts
#17
Peter Marhofer
PURPOSE OF REVIEW: More patients will accept regional blocks if these are performed during sedation or general anesthesia. This review discusses regional anesthesia in sedated or anesthetized patients. RECENT FINDINGS: As complications of regional blocks are rare, regional anesthesia can be considered aswell-tolerated. Awake patients will notice only a minority of needle-to-nerve contacts, that renders the notion of a 'live monitor' obsolete. Using high-resolution ultrasound, the needle can be advanced to an extraepineural position for injection, thus strictly avoiding needle-to-nerve contact or intraepineural injection of local anesthetic...
July 10, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28696852/imaging-of-pregnancy-related-vascular-complications
#18
R Scooter Plowman, Cylen Javidan-Nejad, Constantine A Raptis, Douglas S Katz, Vincent M Mellnick, Sanjeev Bhalla, Patricia Cornejo, Christine O Menias
Pregnancy results in substantial hemodynamic and prothrombotic changes that form the foundation for downstream vascular complications, both during pregnancy and in the postpartum period. In addition, several important risk factors, including older patient age, diabetes, and smoking, can increase the risk for vascular-related pregnancy complications. Because radiologists often play an important role in evaluation of the pregnant patient, understanding the pathophysiology of vascular-related complications in pregnancy and their imaging appearances is essential for diagnostic accuracy...
July 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28694042/ruptured-choroidal-artery-aneurysms-in-patients-with-moyamoya-disease-two-case-series-and-review-of-the-literatures
#19
You-Sub Kim, Sung-Pil Joo, Gwang-Jun Lee, Jae-Young Park, Sang-Deok Kim, Tae-Sun Kim
Distal peripheral artery aneurysms in moyamoya disease (MMD) remain difficult to treat given their deep location, small size, and fragility. Here, we report two cases of choroidal artery aneurysms associated with MMD who were treated through direct clipping and coil embolization. Timing of aneurysm formation remains unclear, however, annual follow-up DSA for surveillance of hemodynamic status is necessary and prompt treatment of aneurysm should be performed when diagnosed. Moreover, choroidal artery aneurysms may benefit from endovascular coil embolization due to their characteristics...
July 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28692508/effect-of-cervical-siphon-of-external-and-internal-carotid-arteries
#20
Rajani Singh, Richard Shane Tubbs
Variant courses, configuration, and branching pattern of the external and internal carotid arteries, especially when curved in S-shape, are important for hemodynamic changes and clinical implications. Therefore, the aim of the study is to report abnormal cervical siphons observed in external and internal carotid arteries to explore clinical significance by review of literature and hemodynamic changes theoretically.The right common carotid artery bifurcated into external and internal carotid arteries at the level of the upper border of thyroid cartilage in a 70-year-old female cadaver...
July 7, 2017: Journal of Craniofacial Surgery
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