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Procedure: Phlebotomy

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Total 34 results found since Jan 2013.

Hydroxyurea (hydroxycarbamide) for sickle cell disease
CONCLUSIONS: There is evidence to suggest that hydroxyurea may be effective in decreasing the frequency of pain episodes and other acute complications in adults and children with sickle cell anaemia of HbSS or HbSβºthal genotypes and in preventing life-threatening neurological events in those with sickle cell anaemia at risk of primary stroke by maintaining transcranial Doppler velocities. However, there is still insufficient evidence on the long-term benefits of hydroxyurea, particularly with regard to preventing chronic complications of SCD, or recommending a standard dose or dose escalation to maximum tolerated dose. ...
Source: Cochrane Database of Systematic Reviews - September 1, 2022 Category: General Medicine Authors: Angela E Rankine-Mullings Sarah J Nevitt Source Type: research

IJERPH, Vol. 18, Pages 10541: Effects of Performing Applied Muscle Tension during Recovery after Phlebotomy in Young, First-Time Donors: A Pilot Study
ara W. Y. Lee Vasovagal reaction (VVR) compromises donor safety and reduces the subsequent return rates. Performing applied muscle tension (AMT) during phlebotomy may reduce the incidence of VVR. However, the effectiveness of performing AMT after phlebotomy to reduce delayed VVR remains unclear. With ethics approval, 12 young, first-time donors (YFTD) were recruited to study the effects on stroke volume (SV), cardiac output (CO) and systemic vascular resistance (SVR) while performing AMT from needle insertion to end of recovery. Measurements from 12 matched control YFTD were used for comparison. Pre-donation anxiety an...
Source: International Journal of Environmental Research and Public Health - October 8, 2021 Category: Environmental Health Authors: Cara H. Y. Cheung May L. Khaw Wan Shun Leung Shing Yau Tam Chui Yee Chu Cheuk Kwong Lee Shara W. Y. Lee Tags: Article Source Type: research

Sexual assault and white matter hyperintensities among midlife women
AbstractTraumatic experiences have been linked to poor mental and physical health. However, there has been little examination of their relationship to neuroimaging markers of cerebrovascular risk. White matter hyperintensities (WMHs) are markers of brain small vessel disease. WMHs can be detected decades before the onset of dementia and other disorders and can serve as early markers for these brain disorders. We tested whether traumatic experiences were associated with brain WMH volume among midlife women. In the MsBrain study, 145 women (mean age  = 59 years) without cardiovascular disease, stroke, or dementia were r...
Source: Brain Imaging and Behavior - September 23, 2021 Category: Neurology Source Type: research

Clinical Characteristics of Pediatric Patients with Congenital Erythrocytosis: A Single-Center Study
AbstractAlthough congenital erythrocytosis (CE), an inherited disorder, impairs pediatric quality of life, physicians often overlook high hemoglobin (Hgb) levels and its symptoms due to lack of knowledge of age-adjusted pediatric Hgb levels and CE ’s rarity. In a retrospective, single-center study, data from hospital records of pediatric patients diagnosed with CE were evaluated. Twenty-six patients from 25 families (80.8% male) had been diagnosed with CE in 20 years, at a mean age of 14.9 ± 2.8 years (8.3–17.8) and with a mean Hgb level of 17.36 ± 1.44 g/dL (14.63–22.1). No serum erythropoietin levels e...
Source: Indian Journal of Hematology and Blood Transfusion - August 25, 2021 Category: Hematology Source Type: research

Continuous Estimation of Acute Changes in Preload Using Epicardially Attached Accelerometers
Conclusion: An epicardially placed accelerometer can assess changes in preload in real-time. Significance: This novel method can facilitate continuous monitoring of the volemic status in open-heart surgery patients and help guiding fluid resuscitation.
Source: IEEE Transactions on Biomedical Engineering - June 18, 2021 Category: Biomedical Engineering Source Type: research

Impaired Cerebral Autoregulation After Subarachnoid Hemorrhage: A Quantitative Assessment Using a Mouse Model
In this study, we quantitatively examined the impact of SAH on cerebral autoregulation using a mouse endovascular perforation model and a newly developed approach combining absolute and relative CBF measurements. This method enables a direct quantitative comparison of cerebral autoregulation between individual animals (e.g., SAH vs. control or sham-operated mice), which cannot be done solely using relative CBF changes by laser Doppler flowmetry. Here, absolute CBF was measured via injection of fluorescent microspheres at a baseline BP. In separate groups of animals, in vivo laser Doppler flowmetry was used to measure relat...
Source: Frontiers in Physiology - June 8, 2021 Category: Physiology Source Type: research

A Noninvasive Stroke Volume Monitoring for Early Detection of Minimal Blood Loss: A Pilot Study
Conclusion: Continuous noninvasive monitoring of SV may be superior to conventional indices (e.g., heart rate, blood pressure, or shock index) for early identification of acute blood loss. As an operator-independent and point-of-care technology, the SV whole body bio-impedance measurement may assist in accurate monitoring of potentially bleeding patients and early identification of hemorrhage.
Source: Shock - January 16, 2021 Category: Emergency Medicine Tags: Clinical Science Aspects Source Type: research

Blood transfusion for preventing primary and secondary stroke in people with sickle cell disease.
CONCLUSIONS: There is no evidence for managing adults, or children who do not have HbSS sickle cell disease. In children who are at higher risk of stroke and have not had previous long-term transfusions, there is moderate quality evidence that long-term red cell transfusions reduce the risk of stroke, and low quality evidence they also reduce the risk of other sickle cell disease-related complications. In primary and secondary prevention of stroke there is low quality evidence that switching to hydroxyurea with phlebotomy has little or no effect on the liver iron concentration. In secondary prevention of stroke there is lo...
Source: Cochrane Database of Systematic Reviews - July 26, 2020 Category: General Medicine Authors: Estcourt LJ, Kohli R, Hopewell S, Trivella M, Wang WC Tags: Cochrane Database Syst Rev Source Type: research

Interventions for preventing silent cerebral infarcts in people with sickle cell disease.
CONCLUSIONS: We identified no trials for preventing silent cerebral infarcts in adults, or in children who do not have HbSS SCD. Long-term red blood cell transfusions may reduce the incidence of silent cerebral infarcts in children with abnormal TCD velocities, but may have little or no effect on children with normal TCD velocities. In children who are at higher risk of stroke and have not had previous long-term transfusions, long-term red blood cell transfusions probably reduce the risk of stroke, and other SCD-related complications (acute chest syndrome and painful crises). In children and adolescents at high risk of str...
Source: Cochrane Database of Systematic Reviews - April 5, 2020 Category: General Medicine Authors: Estcourt LJ, Kimber C, Hopewell S, Trivella M, Doree C, Abboud MR Tags: Cochrane Database Syst Rev Source Type: research

Platelet count and mean volume in acute stroke: a systematic review and meta-analysis.
Authors: Sadeghi F, Kovács S, Zsóri KS, Csiki Z, Bereczky Z, Shemirani AH Abstract Changes of mean platelet volume (MPV) and platelet count (PC) could be a marker or a predictor of acute stroke (AS). We conducted a systematic review and meta-analysis of the published literature on the reporting of MPV and PC in AS. Studies were included in accordance with Patient Population or Problem, Intervention, Comparison, Outcomes, and Setting framework. The PRISMA strategy was used to report findings. Risk of bias was assessed with the Newcastle-Ottawa Scale. We included 34 eligible articles retrieved from the literature. ...
Source: Platelets - October 30, 2019 Category: Hematology Tags: Platelets Source Type: research

237 Systematic Review of Fibrinogen and Risk of Recurrent Stroke and Vascular Events after Ischaemic Stroke or Transient Ischaemic Attack (TIA)
ConclusionThe prognostic value of Fibrinogen after stroke or TIA remains unclear. Standardised methods and fully-adjusted multivariable analysis are needed in future prognostic studies.
Source: Age and Ageing - September 16, 2019 Category: Geriatrics Source Type: research

192 Interleukin-6 and C-Reactive Protein Predict all Cause Death and Poor Functional Outcome after Non-Severe Stroke and Transient Ischaemic Attack
ConclusionIL-6 and CRP may be a useful prognostic factor for the prediction of outcome and death after stroke at 1 year follow up.
Source: Age and Ageing - September 16, 2019 Category: Geriatrics Source Type: research

Iron Metabolism and Brain Development in Premature Infants
Yafeng Wang1,2,3, Yanan Wu2, Tao Li1,2,3, Xiaoyang Wang2,4 and Changlian Zhu2,3* 1Department of Neonatology (NICU), Children’s Hospital Affiliated Zhengzhou University, Zhengzhou, China 2Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China 3Department of Clinical Neuroscience, Center for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden 4Department of Physiology, Sahlgrenska Academy, Institute of Neuroscience and Physiology, University of Got...
Source: Frontiers in Physiology - April 24, 2019 Category: Physiology Source Type: research

Blood Flow Restriction Exercise Attenuates the Exercise-Induced Endothelial Progenitor Cell Response in Healthy, Young Men
Conclusion In summary, this is the first study to show that BFR exercise did not augment EPC response to exercise, and in fact blunted the EPC response to low load unilateral KE exercise in young, healthy males. Ethics Statement This study was carried out in accordance with the recommendations of Edinburgh Napier University Research and Ethics Governance Committee. The study was ethically approved by Edinburgh Napier University Research and Ethics Governance Committee. All participants gave written informed consent in accordance with the Declaration of Helsinki. Author Contributions MR, RM, AP, CW, GF-J designed the s...
Source: Frontiers in Physiology - April 16, 2019 Category: Physiology Source Type: research