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Busl KM, Rabinstein AA. Prevention and Correction of Dysnatremia After Aneurysmal Subarachnoid Hemorrhage. Neurocrit Care 2023; 39:70-80. [PMID: 37138158 DOI: 10.1007/s12028-023-01735-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 04/12/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Dysnatremia occurs commonly in patients with aneurysmal subarachnoid hemorrhage (aSAH). The mechanisms for development of sodium dyshomeostasis are complex, including the cerebral salt-wasting syndrome, the syndrome of inappropriate secretion of antidiuretic hormone, diabetes insipidus. Iatrogenic occurrence of altered sodium levels plays a role, as sodium homeostasis is tightly linked to fluid and volume management. METHODS Narrative review of the literature. RESULTS Many studies have aimed to identify factors predictive of the development of dysnatremia, but data on associations between dysnatremia and demographic and clinical variables are variable. Furthermore, although a clear relationship between serum sodium serum concentrations and outcomes has not been established-poor outcomes have been associated with both hyponatremia and hypernatremia in the immediate period following aSAH and set the basis for seeking interventions to correct dysnatremia. While sodium supplementation and mineralocorticoids are frequently administered to prevent or counter natriuresis and hyponatremia, evidence to date is insufficient to gauge the effect of such treatment on outcomes. CONCLUSIONS In this article, we reviewed available data and provide a practical interpretation of these data as a complement to the newly issued guidelines for management of aSAH. Gaps in knowledge and future directions are discussed.
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Affiliation(s)
- Katharina M Busl
- Departments of Neurology and Neurosurgery, College of Medicine, University of Florida, Gainesville, FL, USA.
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Adrenomedullin Is a Diagnostic and Prognostic Biomarker for Acute Intracerebral Hemorrhage. Curr Issues Mol Biol 2021; 43:324-334. [PMID: 34208106 PMCID: PMC8928941 DOI: 10.3390/cimb43010027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/07/2021] [Accepted: 06/09/2021] [Indexed: 12/17/2022] Open
Abstract
Hemorrhagic stroke remains an important health challenge. Adrenomedullin (AM) is a vasoactive peptide with an important role in cardiovascular diseases, including stroke. Serum AM and nitrate-nitrite and S-nitroso compounds (NOx) levels were measured and compared between healthy volunteers (n = 50) and acute hemorrhagic stroke patients (n = 64). Blood samples were taken at admission (d0), 24 h later (d1), and after 7 days or at the time of hospital discharge (d7). Neurological severity (NIHSS) and functional prognosis (mRankin) were measured as clinical outcomes. AM levels were higher in stroke patients at all times when compared with healthy controls (p < 0.0001). A receiving operating characteristic curve analysis identified that AM levels at admission > 69.0 pg/mL had a great value as a diagnostic biomarker (area under the curve = 0.89, sensitivity = 80.0%, specificity = 100%). Furthermore, patients with a favorable outcome (NIHSS ≤ 3; mRankin ≤ 2) experienced an increase in AM levels from d0 to d1, and a decrease from d1 to d7, whereas patients with unfavorable outcome had no significant changes over time. NOx levels were lower in patients at d0 (p = 0.04) and d1 (p < 0.001) than in healthy controls. In conclusion, AM levels may constitute a new diagnostic and prognostic biomarker for this disease, and identify AM as a positive mediator for hemorrhagic stroke resolution.
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Veldeman M, Dogan R, Weiss M, Stoppe C, Simon TP, Marx G, Clusmann H, Schubert GA, Albanna W. Levels of bioactive adrenomedullin in plasma and cerebrospinal fluid in relation to delayed cerebral ischemia in patients after aneurysmal subarachnoid hemorrhage: A prospective observational study. J Neurol Sci 2021; 427:117533. [PMID: 34111763 DOI: 10.1016/j.jns.2021.117533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Adrenomedullin (ADM) has been identified as a promising biomarker of mortality and outcome in sepsis, heart failure and after major surgery. A recently developed assay specific for bioactive adrenomedullin (bio-ADM) has not yet been assessed in aneurysmal subarachnoid hemorrhage (aSAH). The objective of this prospective trial was to assess the time course of bio-ADM after aSAH in relation to the development of delayed cerebral ischemia (DCI) and its association with clinical outcome. METHODS Bio-ADM levels in plasma and cerebrospinal fluid (CSF) were measured during five predefined epochs, for up to 21 days in 30 aSAH patients: early, (day 0 to day 3); acute, (day 4 to day 8); early critical, (day 9 to day 12); late critical, (day 13 to day 15), and late (day 16 to day 21). DCI was diagnosed clinically or based on multimodal monitoring and imaging, and the occurrence of DCI-related cerebral infarction, and outcome after 12 months (extended Glasgow outcome scale), was noted. RESULTS Higher median bio-ADM levels in plasma during the acute phase were predictive of long-term unfavorable outcome (AUC = 0.97; 95% CI 0.91 to 1.00; p < 0.001). Early critical bio-ADM levels during DCI were lower in CSF and confirmed DCI occurrence (AUC = 0.80; 95% CI 0.59 to 1.00; p = 0.044). CONCLUSION The dynamics of bio-ADM levels in CSF present a fairly different course compared to plasma with observed higher bio-ADM concentrations in patients spared from DCI and/or developing favorable outcome.
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Affiliation(s)
- Michael Veldeman
- Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Rabia Dogan
- Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Miriam Weiss
- Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Christian Stoppe
- Department of Anesthesiology and Intensive Medicine, Würzburg University, Würzburg, Germany
| | - Tim Philipp Simon
- Department of Intensive Care and Intermediate Care, RWTH Aachen University, Aachen, Germany
| | - Gernot Marx
- Department of Intensive Care and Intermediate Care, RWTH Aachen University, Aachen, Germany
| | - Hans Clusmann
- Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany
| | | | - Walid Albanna
- Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany.
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Lerner DP, Shepherd SA, Batra A. Hyponatremia in the Neurologically Ill Patient: A Review. Neurohospitalist 2020; 10:208-216. [PMID: 32549945 PMCID: PMC7271621 DOI: 10.1177/1941874419895124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Hyponatremia is a well-known disorder commonly faced by clinicians managing neurologically ill patients. Neurological disorders are often associated with hyponatremia during their acute presentation and can be associated with specific neurologic etiologies and symptoms. Patients may present with hyponatremia with traumatic brain injury, develop hyponatremia subacutely following aneurysmal subarachnoid hemorrhage, or may manifest with seizures due to hyponatremia itself. Clinicians caring for the neurologically ill patient should be well versed in identifying these early signs, symptoms, and etiologies of hyponatremia. Early diagnosis and treatment can potentially avoid neurologic and systemic complications in these patients and improve outcomes. This review focuses on the causes and findings of hyponatremia in the neurologically ill patient and discusses the pathophysiology, diagnoses, and treatment strategies for commonly encountered etiologies.
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Affiliation(s)
- David P. Lerner
- Department of Neurology, Lahey Hospital and Medical Center, Burlington, MA, USA
| | | | - Ayush Batra
- Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Temporal Relationship between Hyponatremia and Development of Cerebral Vasospasm in Aneurysmal Subarachnoid Hemorrhage Patients: A Retrospective Observational Study. J Stroke Cerebrovasc Dis 2020; 29:104789. [PMID: 32205028 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Hyponatremia is a common complication after aneurysmal subarachnoid hemorrhage (aSAH). Previous studies have reported an association between hyponatremia and vasospasm, however whether hyponatremia directly contributes to the pathogenesis of cerebral vasospasm (CVS), or is a by-product is still unclear. The aim of this study was to explore an association between hyponatremia and CVS after aSAH, and evaluating the temporality of these 2 events. METHODS A retrospective study of consecutive patients with aSAH admitted to the Baylor St. Luke's Medical center between January 2008 and December 2012 was conducted. Demographics, baseline characteristics, serum sodium levels, and evidence of vasospasm detected by transcranial Doppler, CT Angiogram, MR angiogram, and digital subtracted angiography were collected. Patients were dichotomized into a hyponatremic and a normonatremic group. CVS incidence and clinical outcome was compared between groups. Timing of CVS after initial hyponatremia episodes was recorded Results: One hundred and sixty 4 patients with aSAH were included. Hyponatremia was identified in 66 patients (40.2%) and CVS occurred in 71 subjects (43.2%). The incidence of CVS was higher in the hyponatremic group compared to the normonatremic group, 65.1 % versus 28.5%, respectively (P < .001). Hyponatremia preceded CVS by median 1.5 days suggesting a temporal trend. CONCLUSIONS Our study shows a significant association between hyponatremia and CVS, with hyponatremia preceding CVS events. This retrospective finding denotes the need for larger prospective studies, aiming to clarify the temporal relationship of serum sodium levels and CVS.
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Target Serum Sodium Levels During Intensive Care Unit Management of Aneurysmal Subarachnoid Hemorrhage. Shock 2018; 48:558-563. [PMID: 28498294 DOI: 10.1097/shk.0000000000000897] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Dysnatremia commonly occur in the intensive care unit (ICU) management of patients with aneurysmal subarachnoid hemorrhage (SAH). However, detailed management strategies have not been provided even by current guidelines. The purposes of this study were to examine the association of abnormal serum sodium levels with unfavorable neurologic outcomes and to identify the target range of serum sodium in patients with SAH. METHODS We retrospectively reviewed all patients who were consecutively hospitalized with a confirmed diagnosis of SAH between January 2009 and December 2015. Univariate/multivariate analyses were performed to identify the independent predictors of an unfavorable neurologic outcome (modified Rankin scale of 3-6 upon hospital discharge). RESULTS There were 131 patients included in this study. Unfavorable neurologic outcomes occurred in 45% of patients. On multiple regression analysis, age, Hunt and Kosnik grade, and serum sodium levels in the ICU at the maximum [odds ratio (OR), 1.18; 95% CI, 1.05-1.35; P < 0.01] and minimum (OR, 0.88; 95% CI, 0.77-0.99; P = 0.048) values were significantly associated with unfavorable neurologic outcomes. The receiver operating characteristic curve analysis showed that the cut-off serum sodium levels were 145 mmol/L for maximum value and 132 mmol/L for minimum value. Patients with hyponatremia and hypernatremia during the first 2 weeks in the ICU accounted for 88.2% of patients with an unfavorable neurologic outcome; whereas, those with normal sodium levels accounted for only 15.6%. CONCLUSIONS In patients with SAH, both hyponatremia and hypernatremia during ICU management were significantly associated with unfavorable neurologic outcomes.
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Xiang J, Routhe LJ, Wilkinson DA, Hua Y, Moos T, Xi G, Keep RF. The choroid plexus as a site of damage in hemorrhagic and ischemic stroke and its role in responding to injury. Fluids Barriers CNS 2017; 14:8. [PMID: 28351417 PMCID: PMC5371201 DOI: 10.1186/s12987-017-0056-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/08/2017] [Indexed: 12/13/2022] Open
Abstract
While the impact of hemorrhagic and ischemic strokes on the blood–brain barrier has been extensively studied, the impact of these types of stroke on the choroid plexus, site of the blood-CSF barrier, has received much less attention. The purpose of this review is to examine evidence of choroid plexus injury in clinical and preclinical studies of intraventricular hemorrhage, subarachnoid hemorrhage, intracerebral hemorrhage and ischemic stroke. It then discusses evidence that the choroid plexuses are important in the response to brain injury, with potential roles in limiting damage. The overall aim of the review is to highlight deficiencies in our knowledge on the impact of hemorrhagic and ischemic strokes on the choroid plexus, particularly with reference to intraventricular hemorrhage, and to suggest that a greater understanding of the response of the choroid plexus to stroke may open new avenues for brain protection.
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Affiliation(s)
- Jianming Xiang
- Department of Neurosurgery, University of Michigan, R5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Lisa J Routhe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - D Andrew Wilkinson
- Department of Neurosurgery, University of Michigan, R5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Ya Hua
- Department of Neurosurgery, University of Michigan, R5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Torben Moos
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Guohua Xi
- Department of Neurosurgery, University of Michigan, R5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Richard F Keep
- Department of Neurosurgery, University of Michigan, R5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA. .,Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, USA.
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Mapa B, Taylor BES, Appelboom G, Bruce EM, Claassen J, Connolly ES. Impact of Hyponatremia on Morbidity, Mortality, and Complications After Aneurysmal Subarachnoid Hemorrhage: A Systematic Review. World Neurosurg 2015; 85:305-14. [PMID: 26361321 DOI: 10.1016/j.wneu.2015.08.054] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 08/14/2015] [Accepted: 08/18/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hyponatremia is a common metabolic disturbance after aneurysmal subarachnoid hemorrhage (SAH), and it may worsen outcomes. This review aims to characterize the effect of hyponatremia on morbidity and mortality after SAH. OBJECTIVES We sought to determine the prevalence of hyponatremia after SAH, including in subgroups, as well as its effect on mortality and certain outcome measures, including degree of disability and duration of hospitalization. METHODS A search of terms "hyponatremia" and "subarachnoid hemorrhage" was performed on PubMed, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and EMBASE. Studies were included if they reported prevalence of hyponatremia and if they discussed outcomes such as mortality, duration of stay, functional outcomes (e.g., Glasgow Outcomes Scale), or incidence of complications in patients with aneurysmal SAH. Two independent researchers assessed the titles and abstracts and reviewed articles for inclusion. RESULTS Thirteen studies met inclusion criteria. The prevalence of at least mild hyponatremia was 859 of 2387 (36%) of patients. Hyponatremia was associated with vasospasm and duration of hospitalization, but it did not influence mortality. CONCLUSION Hyponatremia is common after SAH, and there is evidence that it is associated with certain poorer outcomes. Larger, prospective studies are needed to assess these findings and provide further evidence.
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Affiliation(s)
- Ben Mapa
- Cerebrovascular Lab, Columbia University Medical Center, New York, New York, USA
| | - Blake E S Taylor
- Cerebrovascular Lab, Columbia University Medical Center, New York, New York, USA; Department of Neurosurgery, Columbia University, New York, New York, USA.
| | - Geoffrey Appelboom
- Cerebrovascular Lab, Columbia University Medical Center, New York, New York, USA; Department of Neurosurgery, Columbia University, New York, New York, USA
| | - Eliza M Bruce
- Cerebrovascular Lab, Columbia University Medical Center, New York, New York, USA; Department of Neurosurgery, Columbia University, New York, New York, USA
| | - Jan Claassen
- Department of Neurology, Columbia University, New York, New York, USA; Neuro-intensive Care Unit, Columbia University, New York, New York, USA
| | - E Sander Connolly
- Cerebrovascular Lab, Columbia University Medical Center, New York, New York, USA; Department of Neurosurgery, Columbia University, New York, New York, USA; Department of Neurology, Columbia University, New York, New York, USA
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9
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Cai JY, Chen XD, Ba HJ, Lin JH, Lu C, Chen MH, Sun J. Identification of plasma adrenomedullin as a possible prognostic biomarker for aneurysmal subarachnoid hemorrhage. Peptides 2014; 59:9-13. [PMID: 25009125 DOI: 10.1016/j.peptides.2014.06.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 06/26/2014] [Accepted: 06/26/2014] [Indexed: 11/18/2022]
Abstract
Increased plasma adrenomedullin levels have been reported in critically ill patients. This study tested the hypothesis that plasma adrenomedullin levels are significantly increased in patients with acute spontaneous aneurysmal subarachnoid hemorrhage, and are predictive of clinical outcomes. Plasma adrenomedullin levels from 120 adult patients with spontaneous aneurysmal subarachnoid hemorrhage and 120 healthy volunteers during the study period were evaluated. Mortality and poor long-term outcome (Glasgow Outcome Scale score of 1-3) at 6 months were recorded. Data showed that circulating plasma adrenomedullin levels significantly increased in patients on admission compared with the volunteers. In patients who died or had poor outcome at 6 months, plasma adrenomedullin levels were significantly higher compared with survivors and patients with good outcome. Plasma adrenomedullin levels on presentation were highly associated with clinical severity assessed using World Federation of Neurological Surgeons score and Fisher score, emerged as the independent risk factor of 6-month mortality and poor outcome, and possessed similar predictive value to World Federation of Neurological Surgeons score and Fisher score based on receiver operating characteristic curves. A combined logistic-regression model did not demonstrate the additive benefit of adrenomedullin to World Federation of Neurological Surgeons score and Fisher score. Thus, higher plasma adrenomedullin levels on presentation are associated with clinical severity and worse outcomes in patients with acute spontaneous aneurysmal subarachnoid hemorrhage.
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Affiliation(s)
- Jian-Yong Cai
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Xian-Dong Chen
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Hua-Jun Ba
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Jian-Hu Lin
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Chuan Lu
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Mao-Hua Chen
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China
| | - Jun Sun
- Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China.
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10
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Chen TJ, Fu QY, Wu WQ. Plasma levels of adrenomedullin in patients with traumatic brain injury: potential contribution to prognosis. Peptides 2014; 56:146-50. [PMID: 24747282 DOI: 10.1016/j.peptides.2014.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 04/04/2014] [Accepted: 04/04/2014] [Indexed: 01/05/2023]
Abstract
High plasma levels of adrenomedullin have been associated with stroke severity and clinical outcomes. This study aimed to analyze plasma levels of adrenomedullin in traumatic brain injury and their association with prognosis. One hundred and forty-eight acute severe traumatic brain injury and 148 sex- and age-matched healthy controls were recruited in this study. Plasma adrenomedullin concentration was measured by enzyme-linked immunosorbent assay. Unfavorable outcome was defined as Glasgow Outcome Scale score of 1-3. Compared to controls, the patients had significantly higher plasma concentrations of adrenomedullin, which were also highly associated negatively with Glasgow Coma Scale score. Plasma adrenomedullin level was proved to be an independent predictor for 6-month mortality and unfavorable outcome of patients in a multivariate analysis. A receiver operating characteristic curve was configured to show that a baseline plasma adrenomedullin level predicted 6-month mortality and unfavorable outcome of patients with high area under curve. The predictive performance of the plasma adrenomedullin concentration was also similar to that of Glasgow Coma Scale score for the prediction of 6-month mortality and unfavorable outcome of patients. In a combined logistic-regression model, adrenomedullin improved the area under curve of Glasgow Coma Scale score for the prediction of 6-month mortality and unfavorable outcome of patients, but the differences did not appear to be statistically significant. Thus, high plasma levels of adrenomedullin are associated with head trauma severity, and may independently predict long-term clinical outcomes of traumatic brain injury.
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Affiliation(s)
- Tie-Jiang Chen
- Department of Emergency Surgery, Yiwu Central Hospital, 699 Jiangdong Road, Yiwu 322000, Zhejiang Province, China.
| | - Qing-Yang Fu
- Department of Emergency Surgery, Yiwu Central Hospital, 699 Jiangdong Road, Yiwu 322000, Zhejiang Province, China
| | - Wu-Quan Wu
- Department of Emergency Surgery, Yiwu Central Hospital, 699 Jiangdong Road, Yiwu 322000, Zhejiang Province, China
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Wang CL, Lin HY, Xu JW, Jiang FF, Yang M, Wang JH, Huang XQ. Blood levels of adrenomedullin on admission predict outcomes after acute intracerebral hemorrhage. Peptides 2014; 54:27-32. [PMID: 24457114 DOI: 10.1016/j.peptides.2014.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 01/12/2014] [Accepted: 01/13/2014] [Indexed: 11/29/2022]
Abstract
Increased plasma adrenomedullin level has been associated with critical illness. This study aimed to investigate the correlations of plasma adrenomedullin concentration with 3-month clinical outcomes and early neurological deterioration of patients with acute intracerebral hemorrhage. One hundred fourteen patients and 112 healthy controls were recruited. Relationships of plasma adrenomedullin concentrations with early neurological deterioration, 3-month mortality and unfavorable outcome (modified Rankin Scale score >2) were evaluated. Plasma adrenomedullin concentrations were increased in patients than in healthy individuals and were highly associated with National Institutes of Health Stroke Scale scores. A multivariate analysis selected plasma adrenomedullin concentration as an independent predictor for 3-month clinical outcomes and early neurological deterioration. A receiver operating characteristic curve analysis showed plasma adrenomedullin concentration predicted 3-month clinical outcomes and early neurological deterioration with high area under curves. The predictive value of adrenomedullin was similar to that of National Institutes of Health Stroke Scale score. In a combined logistic-regression model, adrenomedullin did not improve the predictive value of National Institutes of Health Stroke Scale score. Thus, elevated plasma adrenomedullin concentration is highly associated with 3-month clinical outcomes and early neurological deterioration of patients with acute intracerebral hemorrhage.
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Affiliation(s)
- Chuan-Liu Wang
- Department of Neurology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
| | - Hai-Yan Lin
- Department of Neurology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China.
| | - Jian-Wei Xu
- Department of Urology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
| | - Fei-Fei Jiang
- Department of Neurology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
| | - Ming Yang
- Department of Neurology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
| | - Jin-Hua Wang
- Department of Neurology, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
| | - Xiu-Qing Huang
- Department of Rehabilitation, Quzhou People's Hospital, 2 Zhongloudi Road, Kecheng District, Quzhou 324000, China
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Zhang H, Tang B, Yin CG, Chen Y, Meng QL, Jiang L, Wang WP, Niu GZ. Plasma adrenomedullin levels are associated with long-term outcomes of acute ischemic stroke. Peptides 2014; 52:44-8. [PMID: 24333654 DOI: 10.1016/j.peptides.2013.11.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 11/22/2013] [Accepted: 11/25/2013] [Indexed: 11/30/2022]
Abstract
Plasma adrenomedullin concentration has been found to be enhanced in ischemic stroke. Up to now, little is known about the association of plasma adrenomedullin concentration with clinical outcomes of ischemic stroke. This study recruited 138 patients with ischemic stroke and 138 healthy volunteers. Unfavorable outcome was defined as modified Rankin Scale score >2 at 3 months. Plasma adrenomedullin concentrations were determined by enzyme-linked immunosorbent assay. Plasma adrenomedullin concentrations were statistically significantly higher in patients than in healthy individuals (79.9±27.3pg/mL vs. 36.8±10.4pg/mL; P<0.001). 3-Month mortality was 20.3% (28/138) and sixty-six patients (47.8%) had unfavorable outcome in 3 months. A logistic regression analysis identified plasma adrenomedullin concentration as an independent predictor of 3-month mortality (odds ratio, 1.211; 95% confidence interval, 1.101-1.582; P=0.004) and unfavorable outcome (odds ratio, 1.193; 95% confidence interval, 1.082-1.447; P=0.006). Receiver operating characteristic curve analysis showed that plasma adrenomedullin concentration predicted 3-month mortality (area under curve, 0.806; 95% confidence interval, 0.730-0.868) and unfavorable outcome (area under curve, 0.816; 95% confidence interval, 0.742-0.877) with the high predictive value. Its predictive performance was similar to that of National Institutes of Health Stroke Scale score (P=0.694 or 0.206). Its combined use with National Institutes of Health Stroke Scale score did not improve the predictive value (P=0.236 or 0.590). Thus, adrenomedullin may aid to predict long-term clinical outcomes of patients with ischemic stroke.
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Affiliation(s)
- Hao Zhang
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Bo Tang
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Cong-Guo Yin
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Yan Chen
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Qing-Lian Meng
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Lin Jiang
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Wei-Ping Wang
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China
| | - Guo-Zhong Niu
- Department of Neurology, The First People's Hospital of Hangzhou, Nanjing Medical University, 261 Huansha Road, Hangzhou 310006, China.
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13
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Kubo Y, Koji T, Kashimura H, Otawara Y, Ogawa A, Ogasawara K. Adrenomedullin concentration in the cerebrospinal fluid is related to appetite loss and delayed ischemic neurological deficits after subarachnoid hemorrhage. Neurol Res 2013; 35:713-8. [DOI: 10.1179/1743132813y.0000000222] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Yoshitaka Kubo
- Department of NeurosurgeryIwate Medical University, Morioka, Japan
| | - Takahiro Koji
- Department of NeurosurgeryIwate Medical University, Morioka, Japan
| | | | - Yasunari Otawara
- Department of NeurosurgeryIwate Medical University, Morioka, Japan
| | - Akira Ogawa
- Department of NeurosurgeryIwate Medical University, Morioka, Japan
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14
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Renaud B, Schuetz P, Claessens YE, Labarère J, Albrich W, Mueller B. Proadrenomedullin improves Risk of Early Admission to ICU score for predicting early severe community-acquired pneumonia. Chest 2013; 142:1447-1454. [PMID: 22661450 DOI: 10.1378/chest.11-2574] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Whether proadrenomedullin (ProADM) improves the performance of the Risk of Early Admission to ICU (REA-ICU) score in predicting early, severe community-acquired pneumonia (ESCAP) has not been demonstrated. METHODS Secondary analysis was completed of the original data from 877 consecutive patients with community-acquired pneumonia (CAP) enrolled in the Procalcitonin-Guided Antibiotic Therapy and Hospitalization in Patients With Lower Respiratory Tract Infections (ProHOSP) study, a multicenter trial in EDs of six tertiary-care hospitals in Switzerland. ESCAP was defined by either the requirement for mechanical ventilation or vasopressive drugs or occurrence of death within 3 days of ED presentation. RESULTS Eighty patients (9.1%) developed ESCAP (47 required mechanical ventilation, 19 vasopressive drugs, and 16 died) within 3 days of ED presentation. They had a higher median ProADM value (2.18 nmol/L vs 1.15 nmol/L, P < .001). Combining ProADM testing with the REA-ICU score improved the area under the curve (0.81) compared with either parameter (ProADM [0.73] or REA-ICU score [0.76], P < .001) and resulted in a net reclassification improvement of 0.20 (P < .001). A ProADM value ≥ 1.8 nmol/L or assignment to REA-ICU risk classes III-IV predicted ESCAP with a sensitivity of 76.3% and a negative predictive value of 96.7%. Excluding 21 patients with major criteria of severe CAP on presentation showed similar results. CONCLUSION These study findings demonstrate that the addition of ProADM to the REA-ICU score improves the classification of a substantial proportion of patients in the ED at intermediate or high risk for ESCAP, which may translate into better triage decisions.
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Affiliation(s)
- Bertrand Renaud
- Service d'urgence, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Henri Mondor-Albert Chenevier, Créteil, France; Université Paris Est Créteil, Faculté de Médecine, Créteil, France.
| | | | | | - José Labarère
- Techniques de l'Ingénierie Médicale et de la Complexité, Unité Mixte de Recherche 5525 Centre National de Recherche Scientifique Université Joseph Fourier-Grenoble 1, Grenoble, France
| | - Werner Albrich
- Medical University Clinic, Kantonsspital Aarau, Switzerland
| | - Beat Mueller
- Medical University Clinic, Kantonsspital Aarau, Switzerland
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15
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Nakagawa I, Hironaka Y, Nishimura F, Takeshima Y, Matsuda R, Yamada S, Motoyama Y, Park YS, Nakase H. Early Inhibition of Natriuresis Suppresses Symptomatic Cerebral Vasospasm in Patients with Aneurysmal Subarachnoid Hemorrhage. Cerebrovasc Dis 2013; 35:131-7. [DOI: 10.1159/000346586] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 12/11/2012] [Indexed: 11/19/2022] Open
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16
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Vrsajkov V, Javanović G, Stanisavljević S, Uvelin A, Vrsajkov JP. Clinical and predictive significance of hyponatremia after aneurysmal subarachnoid hemorrhage. Balkan Med J 2012; 29:243-6. [PMID: 25207008 DOI: 10.5152/balkanmedj.2012.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 05/16/2012] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Hyponatremia after SAH was the object of several studies with conflicting results. The aim of this study was to determine a predictive correlation of hyponatremia with delayed cerebral ischemia (DCI) and poor clinical outcome. MATERIAL AND METHODS We have used a retrospective hospital chart review of 82 patients with SAH treated from August 2008 to August 2010. Patients were divided into hyponatremia and normonatremia groups. Hyponatremia was defined as serum sodium level <135 mmol/l. Information compared and analyzed included demographics, preoperative neurological status, aneurysm characteristics, postoperative intensive care, duration of stay, DCI and clinical outcome at hospital discharge. P<0.05 was considered significant. RESULTS Thirty-two patients with SAH (39%) developed hyponatremia. In that group we had a significantly higher WFNS score at admission (p=0.03) and longer duration of stay in intensive care (p=0.001). DCI with transit or definitive deficit included 20 patients (62%) in the hyponatremia group, and 19 patients (38%) in the normonatremia group (p=0.03). Binary enter logistic regression revealed a significant correlation of hyponatremia with DCI (p=0.03) and poor clinical outcome (p=0.001). CONCLUSION This result revealed a possible use of hyponatremia as an additional predictor of developing DCI and poor clinical outcome.
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Affiliation(s)
- Vladimir Vrsajkov
- Department of Anesthesia and Intensive Care, Clinical Centre of Vojvodina, Novi Sad, Serbia
| | - Gordana Javanović
- Department of Anesthesia and Intensive Care, Clinical Centre of Vojvodina, Novi Sad, Serbia
| | - Snežana Stanisavljević
- Department of Anesthesia and Intensive Care, Clinical Centre of Vojvodina, Novi Sad, Serbia
| | - Arsen Uvelin
- Clinical Centre of Vojvodina, Emergency Centre, Novi Sad, Serbia
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17
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Yee AH, Burns JD, Wijdicks EFM. Cerebral salt wasting: pathophysiology, diagnosis, and treatment. Neurosurg Clin N Am 2010; 21:339-52. [PMID: 20380974 DOI: 10.1016/j.nec.2009.10.011] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cerebral salt wasting (CSW) is a syndrome of hypovolemic hyponatremia caused by natriuresis and diuresis. The mechanisms underlying CSW have not been precisely delineated, although existing evidence strongly implicates abnormal elevations in circulating natriuretic peptides. The key in diagnosis of CSW lies in distinguishing it from the more common syndrome of inappropriate secretion of antidiuretic hormone. Volume status, but not serum and urine electrolytes and osmolality, is crucial for making this distinction. Volume and sodium repletion are the goals of treatment of patients with CSW, and this can be performed using some combination of isotonic saline, hypertonic saline, and mineralocorticoids.
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Affiliation(s)
- Alan H Yee
- Department of Neurology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA.
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18
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Abstract
The prevention and management of medical complications are important for improving outcomes after subarachnoid hemorrhage (SAH). Fever, anemia requiring transfusion, hyperglycemia, hyponatremia, pneumonia, hypertension, and neurogenic cardiopulmonary dysfunction occur frequently after SAH. There is increasing evidence that acute hypoxia and extremes of blood pressure can exacerbate brain injury during the acute phase of bleeding. There are promising strategies to minimize these complications. Randomized controlled trials are needed to evaluate the risks and benefits of these and other medical management strategies after SAH.
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Affiliation(s)
- Katja E Wartenberg
- Department of Neurology, Neurologic Intensive Care Unit, Martin-Luther University, Halle-Wittenberg, Leipzig, Germany
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19
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Rahman M, Friedman WA. Hyponatremia in neurosurgical patients: clinical guidelines development. Neurosurgery 2009; 65:925-35; discussion 935-6. [PMID: 19834406 DOI: 10.1227/01.neu.0000358954.62182.b3] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Neurosurgical patients have a high risk of hyponatremia and associated complications. We critically evaluated the existing literature to identify the determinants for the development of hyponatremia and which management strategies provided the best outcomes. METHODS A multidisciplinary panel in the areas of neurosurgery, nephrology, critical care medicine, endocrinology, pharmacy, and nursing summarized and classified hyponatremia literature scientific studies published in English from 1950 through 2008. The panel's recommendations were used to create an evaluation and treatment protocol for hyponatremia in neurosurgical patients at the University of Florida. RESULTS Hyponatremia should be further investigated and treated when the serum sodium level is less than 131 mmol/L (class II). Evaluation of hyponatremia should include a combination of physical examination findings, basic laboratory studies, and invasive monitoring when available (class III). Obtaining levels of hormones such as antidiuretic hormone and natriuretic peptides is not supported by the literature (class III). Treatment of hyponatremia should be based on severity of symptoms (class III). The serum sodium level should not be corrected by more than 10 mmol/L/d (class III). Cerebral salt wasting should be treated with replacement of serum sodium and intravenous fluids (class III). Fludrocortisone may be considered in the treatment of hyponatremia in subarachnoid hemorrhage patients at risk of vasospasm (class I). Hydrocortisone may be used to prevent natriuresis in subarachnoid hemorrhage patients (class I). Hyponatremia in subarachnoid hemorrhage patients at risk of vasospasm should not be treated with fluid restriction (class II). Syndrome of inappropriate antidiuretic hormone may be treated with urea, diuretics, lithium, demeclocycline, and/or fluid restriction (class III). CONCLUSION The summarized literature on the evaluation and treatment of hyponatremia was used to develop practice management recommendations for hyponatremia in the neurosurgical population. However, the practice management recommendations relied heavily on expert opinion because of a paucity of class I evidence literature on hyponatremia.
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Affiliation(s)
- Maryam Rahman
- Department of Neurosurgery, University of Florida, Gainesville, Florida 32610-0265, USA.
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20
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Angquist L, Hössjer O, Groop L. Strategies for conditional two-locus nonparametric linkage analysis. Hum Hered 2008; 66:138-56. [PMID: 18418001 DOI: 10.1159/000126049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Accepted: 09/06/2007] [Indexed: 01/17/2023] Open
Abstract
In this article we deal with two-locus nonparametric linkage (NPL) analysis, mainly in the context of conditional analysis. This means that one incorporates single-locus analysis information through conditioning when performing a two-locus analysis. Here we describe different strategies for using this approach. Cox et al. [Nat Genet 1999;21:213-215] implemented this as follows: (i) Calculate the one-locus NPL process over the included genome region(s). (ii) Weight the individual pedigree NPL scores using a weighting function depending on the NPL scores for the corresponding pedigrees at speci fi c conditioning loci. We generalize this by conditioning with respect to the inheritance vector rather than the NPL score and by separating between the case of known (prede fi ned) and unknown (estimated) conditioning loci. In the latter case we choose conditioning locus, or loci, according to prede fi ned criteria. The most general approach results in a random number of selected loci, depending on the results from the previous one-locus analysis. Major topics in this article include discussions on optimal score functions with respect to the noncentrality parameter (NCP), and how to calculate adequate p values and perform power calculations. We also discuss issues related to multiple tests which arise from the two-step procedure with several conditioning loci as well as from the genome-wide tests.
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Affiliation(s)
- Lars Angquist
- Centre for Mathematical Sciences, Department of Mathematical Statistics, Lund University, Lund, Sweden.
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