Cardiovascular chronobiology: implications for critical care nursing

1998 ◽  
Vol 18 (4) ◽  
pp. 49-54 ◽  
Author(s):  
EJ Bridges ◽  
SL Woods

Critical care clinicians must consider known expected circadian rhythms when interpreting fluctuations in patients' hemodynamic values. As noted in the case study, knowledge of circadian rhythmicity in cardiovascular variables may help clinicians anticipate hemodynamic changes and develop and evaluate chronobiologically sensitive interventions, including prescriptions for activity, modification of the timing of medications, and provision of protective interventions for patients with disrupted rhythms. Felver provides excellent guidelines for the systematic review of possible causes for overt changes in circadian patterns. This review highlights the need to evaluate (1) the effect of disease progression on temporal patterns, (2) the patient's underlying endogenous rhythms, (3) the zeitgebers that may entrain the patient's biological rhythms (e.g., light, social cues, and sleep-wake cycles), and (4) how the zeitgebers change in a critical care environment. The body of literature on the rhythmic fluctuation of cardiovascular variables in healthy, young subjects is extensive. During the past 10 years, research on the chronobiologic fluctuations of numerous physiological variables (cardiovascular, pulmonary, hematologic, and endocrine) in critical illness has increased. As information on the fluctuations in critically ill patients increases, critical care clinicians will be challenged to develop and evaluate a chronobiologically sensitive plan of care for these patients.

Author(s):  
Vidhyotma GANDHI ◽  
Jaiteg Singh

A Heart is the vital organ of the body. According to the “world health statistics, 2017” by WHO, about 460,000 people die due to fatal heart attacks every year. To reduce the death rate due to fatal heart attacks and malfunctioning of the cardiovascular system, this paper proposed a Wireless Body Sensor Network (WBSN) based, portable, easily affordable, miniatured, accurate “Heartrate Monitoring System (HMS)”. HMS can be used to regularly examine the cardiac condition at home or hospital to avoid or early detection of any serious condition. Heartrate Monitoring Algorithm (HMA) was designed to observe the spread heartbeat spectrum and worked at the backend of HMS. A case study was performed for forty healthy young subjects. Each subject data was computed for (sub) ̅-3S_d<sub<(sub) ̅+3S_d . All subjects’ 99% data lie in the custom range. The results produced by HMS was the same as the previous medical record of subjects.


2018 ◽  
Author(s):  
Matthew Willard

Sepsis can lead the body into organ failure, tissue damage, amputations, and in severe cases, even death. Yale New Haven Health-Westerly Hospital has several new RN’s that are at a novice level of knowledge about how to treat and care for the septic patient. Knowledge of the signs and symptoms of sepsis can lead to a quicker diagnosis and improve patient outcomes. The purpose of this program development project was to improve the knowledge of sepsis identification and treatment by providing education to the critical care nursing staff at Yale Westerly Hospital. A non-probability convenience sampling plan was utilized. Fifteen nurses out of a potential twenty nurses completed the pre-test and post-test component. Each participant’s test score from the pre-test in comparison to the post-test improved after the education component of the project was implemented. Pre-test scores encompassing the entire exam, ranged from 35% to 60% and post-testing scores ranged from 65% to 85%. The mean score of the pre-test was 52% and the mean score of the post-test was 78.6%. The mean scores from the pre-test compared to the post-test improved by 26.6%. More experience in the critical care setting did influence the average test scores in both the pre and post-test. APRN’s are in a unique position to enable educational programs and assess educational needs of a certain department. The APRN can deliver education not only for the novice nurses, but for all nurses throughout the experience spectrum.


2019 ◽  
Vol 44 (2) ◽  
pp. 219-239 ◽  
Author(s):  
Frederick Harry Pitts ◽  
Eleanor Jean ◽  
Yas Clarke

Today there is a proliferation of wearable and app-based technologies for self-quantification and self-tracking. This article explores the potential of an Open Marxist reading of Henri Lefebvre’s rhythmanalysis to understand data as an appearance assumed by the quantitative abstraction of everyday life, which negates a qualitative disjuncture between different natural and social rhythms – specifically those between embodied circadian and biological rhythms and the rhythms of work and organisations. It takes as a case study a piece of performance research investigating the methodological and practical potential of quantified-self technologies to tell us about the world of work and how it sits within life as a whole. The prototype performance research method developed in the case study reconnects the body to its forms of abstraction in a digital age by means of the collection, interpretation and sonification of data using wearable tech, mobile apps, synthesised music and modes of visual communication. Quantitative data were selectively ‘sonified’ with synthesisers and drum machines to produce a 40-minute electronic symphony performed to a public audience. The article theorises the project as a ‘negative dialectical’ intervention reconnecting quantitative data with the qualitative experience it abstracts from, exploring the potential for these technologies to be used as tools to recover the embodied social subject from its abstraction in data. Specifically, we explore how the rhythmanalytical method works in and against the reduction of life-time to labour-time by situating labour within the embodied time of life as a whole. We close by considering the capacity of wearable technologies to be repurposed by workers in constructing new forms of measurement around which to organise and bargain.


2006 ◽  
Vol 31 (4) ◽  
pp. 153-158 ◽  
Author(s):  
John E. Henning ◽  
Lynn E. Nielsen ◽  
James A. Hauschildt

1989 ◽  
Vol 9 (7) ◽  
pp. 24-36
Author(s):  
AM Gurka

The immune system consists of a number of elements that work together in a complex manner to protect the body from foreign or invading organisms. Problems arise when the immune system malfunctions, or is suppressed by illness or other factors. Critical care nurses who incorporate assessment for the risk factors of immunocompromise into daily patient assessments and who plan interventions to prevent the effects of such immunocompromise, may prevent complications such as infection and achieve positive outcomes in patient care.


Author(s):  
Pramukti Dian Setianingrum ◽  
Farah Irmania Tsani

Backgroud: The World Health Organization (WHO) explained that the number of Hyperemesis Gravidarum cases reached 12.5% of the total number of pregnancies in the world and the results of the Demographic Survey conducted in 2007, stated that 26% of women with live births experienced complications. The results of the observations conducted at the Midwife Supriyati Clinic found that pregnant women with hyperemesis gravidarum, with a comparison of 10 pregnant women who examined their contents there were about 4 pregnant women who complained of excessive nausea and vomiting. Objective: to determine the hyperemesis Gravidarum of pregnant mother in clinic. Methods: This study used Qualitative research methods by using a case study approach (Case Study.) Result: The description of excessive nausea of vomiting in women with Hipermemsis Gravidarum is continuous nausea and vomiting more than 10 times in one day, no appetite or vomiting when fed, the body feels weak, blood pressure decreases until the body weight decreases and interferes with daily activities days The factors that influence the occurrence of Hyperemesis Gravidarum are Hormonal, Diet, Unwanted Pregnancy, and psychology, primigravida does not affect the occurrence of Hyperemesis Gravidarum. Conclusion: Mothers who experience Hyperemesis Gravidarum feel nausea vomiting continuously more than 10 times in one day, no appetite or vomiting when fed, the body feels weak, blood pressure decreases until the weight decreases and interferes with daily activities, it is because there are several factors, namely, hormonal actors, diet, unwanted pregnancy, and psychology.


2020 ◽  
Vol 26 ◽  
Author(s):  
Cristian Muresanu ◽  
Siva G. Somasundaram ◽  
Sergey V. Vissarionov ◽  
Liliya V. Gavryushova ◽  
Vladimir N. Nikolenko ◽  
...  

Background: From the evidence of failed injection-based growth factor therapies, it has been proposed that a naturally triggered uninterrupted blood circulation of the growth factors would be superior. Objective: We seek to stimulate discussions and more research about the possibility of using the already available growth factors found in the prostate gland and endometrium by starting a novel educable physiology, known as biological transformations controlled by the mind. Methods: We summarized the stretch-gated ion channel mechanism of the cell membrane, and offer several practical methods that can be applied by anyone, in order to stimulate and enhance the blood circulation of the growth factors from the seminal fluid to sites throughout the body. This details the practical application of our earlier published studies about biological transformations. Results: A previously reported single-patient case study has been extended, adding more from his personal experiences continually improving this novel physiological training and extending the ideas from our earlier findings in detail. Conclusion: The biological transformation findings demonstrate the need additional research to establish the benefits of these natural therapies to repair and rejuvenate tissues affected by various chronic diseases or aging processes.


2021 ◽  
pp. 002087282096742
Author(s):  
Emmison Muleya

Successful social reintegration is critical if we are to reduce recidivism and crime in general. This voice of people article presents a background case for why effective offender reintegration services are key in South Africa, and the Eastern Cape in particular, through an example of the Offender Reintegration programme rendered by the National Institute of Crime Prevention and Reintegration of Offenders (NICRO). Apart from the paucity of literature on offender reintegration, very few voices from people working directly with these former offenders are ever heard. Therefore, this article seeks to address this gap by contributing to the body of knowledge on offender social reintegration.


Hydrobiologia ◽  
2021 ◽  
Author(s):  
Rungtip Wonglersak ◽  
Phillip B. Fenberg ◽  
Peter G. Langdon ◽  
Stephen J. Brooks ◽  
Benjamin W. Price

AbstractChironomids are a useful group for investigating body size responses to warming due to their high local abundance and sensitivity to environmental change. We collected specimens of six species of chironomids every 2 weeks over a 2-year period (2017–2018) from mesocosm experiments using five ponds at ambient temperature and five ponds at 4°C higher than ambient temperature. We investigated (1) wing length responses to temperature within species and between sexes using a regression analysis, (2) interspecific body size responses to test whether the body size of species influences sensitivity to warming, and (3) the correlation between emergence date and wing length. We found a significantly shorter wing length with increasing temperature in both sexes of Procladius crassinervis and Tanytarsus nemorosus, in males of Polypedilum sordens, but no significant relationship in the other three species studied. The average body size of a species affects the magnitude of the temperature-size responses in both sexes, with larger species shrinking disproportionately more with increasing temperature. There was a significant decline in wing length with emergence date across most species studied (excluding Polypedilum nubeculosum and P. sordens), indicating that individuals emerging later in the season tend to be smaller.


Sign in / Sign up

Export Citation Format

Share Document