Temperature Rhythm in Aneurysmal Subarachnoid Hemorrhage

Kirkness, Catherine J.; Burr, Robert L.; Thompson, Hilaire J.; Mitchell, Pamela H.

doi:10.1007/s12028-007-9034-y

Cited by 15 publications

(9 citation statements)

References 51 publications

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“…In 15 patients, Tweedie et al [19] showed that the CBT amplitude was > 0.15°C in non-survivors. In 86 patients with traumatic brain injury, Kirkness et al reported significantly higher temperature amplitude of 0.1°C among non-survivors [40]. Conversely, other studies found that a decreased amplitude during the ICU stay was associated with the severity of illness and the mortality rate [41,42].…”

Section: Discussionmentioning

confidence: 98%

“…Our protocol included a large number of patients, as compared to previous studies [21,28,37,42,43]. Temperature measurements were collected from a central site-this point being the most common limitation encountered in other studies [21,28,37,40,44]. Bladder temperature monitoring is a validated method for determining CBT-with a minimal error margin and a good correlation with CBT [45].…”

Section: Discussionmentioning

confidence: 99%

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Circadian disruption of core body temperature in trauma patients: a single-center retrospective observational study

et al. 2020

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Background: Circadian clock alterations were poorly reported in trauma patients, although they have a critical role in human physiology. Core body temperature is a clinical variable regulated by the circadian clock. Our objective was to identify the circadian temperature disruption in trauma patients and to determine whether these disruptions were associated with the 28-day mortality rate. Methods: A retrospective and observational single-center cohort study was conducted. All adult severe trauma patients admitted to the intensive care unit of Aix Marseille University, North Hospital, from November 2013 to February 2018, were evaluated. The variations of core body temperature for each patient were analyzed between days 2 and 3 after intensive care unit admission. Core body temperature variations were defined by three parameters: mesor, amplitude, and period. A logistic regression model was used to determine the variables influencing these three parameters. A survival analysis was performed assessing the association between core body temperature rhythm disruption and 28-day mortality rate. A post hoc subgroup analysis focused on the patients with head trauma. Results: Among the 1584 screened patients, 248 were included in this study. The period differed from 24 h in 177 (71%) patients. The mesor value (°C) was associated with body mass index and ketamine use. Amplitude (°C) was associated with ketamine use only. The 28-day mortality rate was 18%. For all trauma patients, age, body mass index, intracranial hypertension, and amplitude were independent risk factors. The patients with a mesor value < 36.9°C (p < 0.001) and an amplitude > 0.6°C (p < 0.001) had a higher 28-day mortality rate. Among the patients with head trauma, mesor and amplitude were identified as independent risk factors (HR = 0.40, 95% CI [0.23-0.70], p = 0.001 and HR = 4.73, 95% CI [1. 38-16.22], p = 0.01). Conclusions:Our results highlight an association between core body temperature circadian alteration and 28-day mortality rate. This association was more pronounced in the head trauma patients than in the non-head trauma patients. Further studies are needed to show a causal link and consider possible interventions.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Circadian disruption of core body temperature in trauma patients: a single-center retrospective observational study

et al. 2020

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“…Aneurysmal subarachnoid hemorrhage (SAH) is believed to be a largely unpredictable, spontaneous event. However, the formation and rupture of cerebral aneurysms has been shown to be associated with multiple factors, including the characteristics of the aneurysm, the age of the patient, blood pressure, and changes in body temperature [1] , [2] . Regional weather patterns and seasonal changes have also been hypothesized to impact the risk of rupture of cerebral aneurysms.…”

Section: Introductionmentioning

confidence: 99%

The Association between Meteorological Parameters and Aneurysmal Subarachnoid Hemorrhage: A Nationwide Analysis

Lai

Dasenbrock

2014

PLoS ONE

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Prior research has suggested that regional weather patterns impact the risk of rupture of cerebral aneurysms, but the findings in the literature have been inconsistent. Furthermore, no nationwide analysis to date has examined the association between meteorological factors and the post-procedural outcomes of patients after the treatment for ruptured cerebral aneurysms. The purpose of this study was to use a nationwide sample to analyze the association between specific meteorological parameters—temperature, precipitation, sunlight, and humidity—and hospital admission rate for and outcome after aneurysmal subarachnoid hemorrhage. Patients were identified using the Nationwide Inpatient Sample (2001–2010): Those with an ICD-9 diagnosis code for subarachnoid hemorrhage and a procedural code for aneurysm repair were included. Climate data were obtained from the State of the Climate Report 2010 released by the National Climatic Data Center. Multivariate regression models were constructed to analyze the association between average state monthly temperature, precipitation, and percent possible sunlight, as well as relative morning humidity and both monthly hospital admission rate, adjusted for annual state population in millions, and in-hospital mortality. 16,970 admissions were included from 723 hospitals across 41 states. Decreased daily sunlight and lower relative humidity were associated with an increased rate of admission for ruptured cerebral aneurysms (p<0.001), but had no association with differential inpatient mortality. No significant changes in these observed associations were seen when multivariate analyses were constructed. This is the first nationwide study to suggest that decreased sunlight and lower relative humidity are associated with admission for ruptured cerebral aneurysms. While it has been postulated that external atmospheric factors may cause hormonal and homeostatic changes that impact the risk of rupture of cerebral aneurysms, additional research is needed to confirm and further understand these relationships.

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“…In certain populations, such as those with neurological insults, fever is associated with poor outcomes (Wartenberg et al. 2006, Kirkness et al. 2008) and should be avoided (Adams et al.…”

Section: Introductionmentioning

confidence: 99%

Clinical management of fever by nurses: doing what works

Thompson

Kagan

2010

Journal of Advanced Nursing

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Aims The specific aims were to (1) define fever from the nurse’s perspective; (2) describe fever management decision-making by nurses and (3) describe barriers to evidence-based practice across various settings. Background Publication of practice guidelines, which address fever management, has not yielded improvements in nursing care. This may be related to differences in ways nurses define and approach fever. Method The collective case study approach was used to guide the process of data collection and analysis. Data were collected during 2006–7. Transcripts were coded using the constant comparative method until themes were identified. Cross-case comparison was conducted. The nursing process was used as an analytical filter for refinement and presentation of the findings. Findings Nurses across settings defined fever as a (single) elevated temperature that exceeded some established protocol. Regardless of practice setting, interventions chosen by nurses were frequently based on trial and error or individual conventions – ‘what works’– rather than evidence-based practice. Some nurses’ accounts indicated use of interventions that were clearly contraindicated by the literature. Participants working on dedicated neuroscience units articulated specific differences in patient care more than those working on mixed units. Conclusions By defining a set temperature for intervention, protocols may serve as a barrier to critical clinical judgment. We recommend that protocols be developed in an interdisciplinary manner to foster local adaptation of best practices. This could further best practice by encouraging individual nurses to think of protocols not as a recipe, but rather as a guide when individualizing patient care. There is value of specialty knowledge in narrowing the translational gap, offering institutions evidence for planning and structuring the organization of care.

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Temperature Rhythm in Aneurysmal Subarachnoid Hemorrhage

Cited by 15 publications

References 51 publications

Circadian disruption of core body temperature in trauma patients: a single-center retrospective observational study

Circadian disruption of core body temperature in trauma patients: a single-center retrospective observational study

The Association between Meteorological Parameters and Aneurysmal Subarachnoid Hemorrhage: A Nationwide Analysis

Clinical management of fever by nurses: doing what works

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