Intracranial pulse pressure waveform analysis using the higher harmonics centroid

AbstractBackgroundThe pulse waveform of intracranial pressure (ICP) is its distinctive feature almost always present in the clinical recordings. In most cases, it changes proportionally to rising ICP, and observation of these changes may be clinically useful. We introduce the higher harmonics centroid (HHC) which can be defined as the center of mass of harmonics of the ICP pulse waveform from the 2nd to 10th, where mass corresponds to amplitudes of these harmonics. We investigate the changes in HHC during ICP monitoring, including isolated episodes of ICP plateau waves.Material and methodsRecordings from 325 patients treated between 2002 and 2010 were reviewed. Twenty-six patients with ICP plateau waves were identified. In the first step, the correlation between HHC and ICP was examined for the entire monitoring period. In the second step, the above relation was calculated separately for periods of elevated ICP during plateau wave and the baseline.ResultsFor the values averaged over the whole monitoring period, ICP (22.3  ± 6.9 mm Hg) correlates significantly (R = 0.45,p = 0.022) with HHC (3.64 ± 0.46). During the ICP plateau waves (ICP increased from 20.9 ± 6.0 to 53.7 ± 9.7 mm Hg,p 
Source: Acta Neurochirurgica - Category: Neurosurgery Source Type: research

Related Links:

The most popular medication to treat high blood pressure is not as effective as this drug.
Source: PsyBlog | Psychology Blog - Category: Psychiatry & Psychology Authors: Tags: Blood Pressure Source Type: blogs
Last week I described some of the reasons for using a case formulation approach when working through initial assessment information, and today I’m going to describe one approach for organising a formulation. This is the “4 P” formulation, and it’s one that’s often used in mental health (Bolton, 2014). In the 4 P model, there are four questions to ask yourself: Preconditions – Why is this person vulnerable to this problem?Precipitating factors – Why now? This can mean “why is this person having symptoms now?” or “why is this person presenting to this person ...
Source: HealthSkills Weblog - Category: Anesthesiology Authors: Tags: Assessment Chronic pain Clinical reasoning Pain conditions Professional topics Research Science in practice biopsychosocial case formulation Occupational therapy pain management Therapeutic approaches Source Type: blogs
HIGH blood pressure can be tricky to spot as it rarely shows symptoms you can notice. But if you don't treat this condition, you can increase your risk of heart attacks and stroke. The health benefits of a Mediterranean diet are very well documented. But there might be an even more effective way of lowering your blood pressure reading, according to Dr Michael Mosley.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusions: Modeled estimates from the 500 Cites Project were significantly higher than insurance claims estimates for hypertension but were more consistent for diabetes. Utilization of multiple data sources to understand local-level chronic disease burden requires consideration of the strengths and limitations of each.
Source: Journal of Public Health Management and Practice - Category: Health Management Tags: Research Brief Report Source Type: research
Conclusions: Both EHRs and ED claims data are useful for identifying neighborhoods with greater disease burden and have potential for monitoring chronic conditions at the neighborhood level.
Source: Journal of Public Health Management and Practice - Category: Health Management Tags: Research Full Report Source Type: research
HYPERTENSION or high blood pressure, is a very prevalent medical condition that is caused by a variety of lifestyle, genetic and dietary factors.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
IJERPH, Vol. 18, Pages 12527: Acute Effects of Air Pollution on Ischemic Heart Disease Hospitalizations: A Population-Based Time-Series Study in Wuhan, China, 2017–2018 International Journal of Environmental Research and Public Health doi: 10.3390/ijerph182312527 Authors: Wanglin Xu Xingyuan Liu Zenghui Huang Yating Du Biao Zhang Qiaomai Wang Jing Xiang Yuliang Zou Lu Ma Evidence of the acute effects of air pollutants on ischemic heart disease (IHD) hospitalizations based on the entire population of a megacity in central China is lacking. All IHD hospitalization records from 2017 to 2018 were ...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
IJERPH, Vol. 18, Pages 12550: Per- and Polyfluoroalkyl Substances (PFAS) in Integrated Crop–Livestock Systems: Environmental Exposure and Human Health Risks International Journal of Environmental Research and Public Health doi: 10.3390/ijerph182312550 Authors: Gaurav Jha Vanaja Kankarla Everald McLennon Suman Pal Debjani Sihi Biswanath Dari Dawson Diaz Mallika Nocco Per- and polyfluoroalkyl substances (PFAS) are highly persistent synthetic organic contaminants that can cause serious human health concerns such as obesity, liver damage, kidney cancer, hypertension, immunotoxicity and other human h...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Review Source Type: research
Am J Perinatol DOI: 10.1055/s-0041-1739470 Objective To determine if women who newly met criteria for stage 1 hypertension in early pregnancy were at increased risk for adverse perinatal outcomes compared with normotensive women. Study Design We conducted a retrospective cohort study of women who had prenatal care at a single institution and subsequently delivered a live infant between December 2017 and August 2019. Women with a singleton gestation who had at least two prenatal visits prior to 20 weeks of gestation were included. We excluded women with known chronic hypertension or other major maternal illn...
Source: American Journal of Perinatology - Category: Perinatology & Neonatology Authors: Tags: Original Article Source Type: research
More News: Brain | Hypertension | Neurology | Neurosurgery | Warnings