Prognostic significance of hypernatremia and hyponatremia among patients with aneurysmal subarachnoid hemorrhage
Abnormal serum sodium levels (hyponatremia and hypernatremia) are frequently observed during the acute period after aneurysmal subarachnoid hemorrhage (SAH) and may worsen cerebral edema and mass effect. We performed this study to determine the prognostic significance of serum sodium concentration a...
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| Veröffentlicht in: | Neurosurgery 2002-04, Vol.50 (4), p.749-756 |
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| creator | Qureshi, Adnan I Suri, M Fareed K Sung, Gene Y Straw, Robert N Yahia, Abutaher M Saad, Mustafa Guterman, Lee R Hopkins, L Nelson |
| description | Abnormal serum sodium levels (hyponatremia and hypernatremia) are frequently observed during the acute period after aneurysmal subarachnoid hemorrhage (SAH) and may worsen cerebral edema and mass effect. We performed this study to determine the prognostic significance of serum sodium concentration abnormalities.
We analyzed prospectively collected data for the placebo treatment group in a clinical trial conducted at 54 neurosurgical centers in North America. The presence of hypernatremia (serum sodium concentration of >145 mmol/L) and hyponatremia (serum sodium concentration of |
| doi_str_mv | 10.1097/00006123-200204000-00012 |
| format | Article |
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We analyzed prospectively collected data for the placebo treatment group in a clinical trial conducted at 54 neurosurgical centers in North America. The presence of hypernatremia (serum sodium concentration of >145 mmol/L) and hyponatremia (serum sodium concentration of <135 mmol/L) was determined with serum sodium measurements obtained at admission and 3, 6, and 9 days after SAH. The effects of hypernatremia and hyponatremia on the risk of symptomatic vasospasm and on 3-month outcomes were analyzed after adjustment for the following potential confounding factors: age, sex, preexisting hypertension, admission Glasgow Coma Scale score, initial mean arterial pressure, subarachnoid clot thickness, intraventricular blood or intraparenchymal hematoma, ventricular dilation, and aneurysm size and location.
Of 298 patients in the analysis, 58 (19%) developed hypernatremia and 88 (30%) developed hyponatremia. Hypernatremia was significantly associated with poor outcomes (odds ratio, 2.7; 95% confidence interval, 1.2-6.1). A positive correlation was observed between the highest sodium values recorded and Glasgow Outcome Scale scores at 3 months (P < 0.0001 by analysis of variance). Hyponatremia was not associated with 3-month outcomes (odds ratio, 1.9; 95% confidence interval, 0.9-4.3). Neither hypernatremia nor hyponatremia was associated with the risk of symptomatic vasospasm.
Hyponatremia seems to be more common than hypernatremia after SAH. However, hypernatremia after SAH is independently associated with poor outcomes, and this association is independent of previously identified outcome predictors, including age and admission Glasgow Coma Scale scores. Further studies are needed to define the underlying mechanism of this association.</description><identifier>ISSN: 0148-396X</identifier><identifier>EISSN: 1524-4040</identifier><identifier>DOI: 10.1097/00006123-200204000-00012</identifier><identifier>PMID: 11904025</identifier><language>eng</language><publisher>United States</publisher><subject>Adolescent ; Adult ; Double-Blind Method ; Female ; Humans ; Hypernatremia - complications ; Hyponatremia - complications ; Intracranial Aneurysm - complications ; Male ; Middle Aged ; Multicenter Studies as Topic ; Prognosis ; Prospective Studies ; Randomized Controlled Trials as Topic ; Risk Factors ; Subarachnoid Hemorrhage - complications ; Subarachnoid Hemorrhage - etiology ; Vasospasm, Intracranial - etiology</subject><ispartof>Neurosurgery, 2002-04, Vol.50 (4), p.749-756</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c311t-1eb022acee61e72f01eb75c3648468d377230e2d10fe7c39891c55352644b3693</citedby><cites>FETCH-LOGICAL-c311t-1eb022acee61e72f01eb75c3648468d377230e2d10fe7c39891c55352644b3693</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11904025$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Qureshi, Adnan I</creatorcontrib><creatorcontrib>Suri, M Fareed K</creatorcontrib><creatorcontrib>Sung, Gene Y</creatorcontrib><creatorcontrib>Straw, Robert N</creatorcontrib><creatorcontrib>Yahia, Abutaher M</creatorcontrib><creatorcontrib>Saad, Mustafa</creatorcontrib><creatorcontrib>Guterman, Lee R</creatorcontrib><creatorcontrib>Hopkins, L Nelson</creatorcontrib><title>Prognostic significance of hypernatremia and hyponatremia among patients with aneurysmal subarachnoid hemorrhage</title><title>Neurosurgery</title><addtitle>Neurosurgery</addtitle><description>Abnormal serum sodium levels (hyponatremia and hypernatremia) are frequently observed during the acute period after aneurysmal subarachnoid hemorrhage (SAH) and may worsen cerebral edema and mass effect. We performed this study to determine the prognostic significance of serum sodium concentration abnormalities.
We analyzed prospectively collected data for the placebo treatment group in a clinical trial conducted at 54 neurosurgical centers in North America. The presence of hypernatremia (serum sodium concentration of >145 mmol/L) and hyponatremia (serum sodium concentration of <135 mmol/L) was determined with serum sodium measurements obtained at admission and 3, 6, and 9 days after SAH. The effects of hypernatremia and hyponatremia on the risk of symptomatic vasospasm and on 3-month outcomes were analyzed after adjustment for the following potential confounding factors: age, sex, preexisting hypertension, admission Glasgow Coma Scale score, initial mean arterial pressure, subarachnoid clot thickness, intraventricular blood or intraparenchymal hematoma, ventricular dilation, and aneurysm size and location.
Of 298 patients in the analysis, 58 (19%) developed hypernatremia and 88 (30%) developed hyponatremia. Hypernatremia was significantly associated with poor outcomes (odds ratio, 2.7; 95% confidence interval, 1.2-6.1). A positive correlation was observed between the highest sodium values recorded and Glasgow Outcome Scale scores at 3 months (P < 0.0001 by analysis of variance). Hyponatremia was not associated with 3-month outcomes (odds ratio, 1.9; 95% confidence interval, 0.9-4.3). Neither hypernatremia nor hyponatremia was associated with the risk of symptomatic vasospasm.
Hyponatremia seems to be more common than hypernatremia after SAH. However, hypernatremia after SAH is independently associated with poor outcomes, and this association is independent of previously identified outcome predictors, including age and admission Glasgow Coma Scale scores. Further studies are needed to define the underlying mechanism of this association.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Double-Blind Method</subject><subject>Female</subject><subject>Humans</subject><subject>Hypernatremia - complications</subject><subject>Hyponatremia - complications</subject><subject>Intracranial Aneurysm - complications</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Multicenter Studies as Topic</subject><subject>Prognosis</subject><subject>Prospective Studies</subject><subject>Randomized Controlled Trials as Topic</subject><subject>Risk Factors</subject><subject>Subarachnoid Hemorrhage - complications</subject><subject>Subarachnoid Hemorrhage - etiology</subject><subject>Vasospasm, Intracranial - etiology</subject><issn>0148-396X</issn><issn>1524-4040</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkEtLxDAYRYMozjj6FyQrd9W82y5l8AUDulBwV9L0axtpm5q0yPx7Mzo6gRByOfdLOAhhSq4pydMbEpeijCeMEEZEvCVxU3aEllQykYiYHaMloSJLeK7eF-gshI9IKJFmp2hBaR4JJpdofPGuGVyYrMHBNoOtrdGDAexq3G5H8IOePPRWYz1Uu8Qdgt4NDR71ZGGYAv6yUxshmP029LrDYS6116YdnI1F6J33rW7gHJ3UugtwsT9X6O3-7nX9mGyeH57Wt5vEcEqnhEJJGNMGQFFIWU1ikErDlciEyiqepowTYBUlNaSG51lOjZRcMiVEyVXOV-jqd-7o3ecMYSp6Gwx0Xfyim0ORUimkYCyC2S9ovAvBQ12M3vbabwtKip3t4s928W-7-LEdq5f7N-ayh-pQ3Ovl39zbfGs</recordid><startdate>200204</startdate><enddate>200204</enddate><creator>Qureshi, Adnan I</creator><creator>Suri, M Fareed K</creator><creator>Sung, Gene Y</creator><creator>Straw, Robert N</creator><creator>Yahia, Abutaher M</creator><creator>Saad, Mustafa</creator><creator>Guterman, Lee R</creator><creator>Hopkins, L Nelson</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>200204</creationdate><title>Prognostic significance of hypernatremia and hyponatremia among patients with aneurysmal subarachnoid hemorrhage</title><author>Qureshi, Adnan I ; Suri, M Fareed K ; Sung, Gene Y ; Straw, Robert N ; Yahia, Abutaher M ; Saad, Mustafa ; Guterman, Lee R ; Hopkins, L Nelson</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c311t-1eb022acee61e72f01eb75c3648468d377230e2d10fe7c39891c55352644b3693</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Double-Blind Method</topic><topic>Female</topic><topic>Humans</topic><topic>Hypernatremia - complications</topic><topic>Hyponatremia - complications</topic><topic>Intracranial Aneurysm - complications</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Multicenter Studies as Topic</topic><topic>Prognosis</topic><topic>Prospective Studies</topic><topic>Randomized Controlled Trials as Topic</topic><topic>Risk Factors</topic><topic>Subarachnoid Hemorrhage - complications</topic><topic>Subarachnoid Hemorrhage - etiology</topic><topic>Vasospasm, Intracranial - etiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qureshi, Adnan I</creatorcontrib><creatorcontrib>Suri, M Fareed K</creatorcontrib><creatorcontrib>Sung, Gene Y</creatorcontrib><creatorcontrib>Straw, Robert N</creatorcontrib><creatorcontrib>Yahia, Abutaher M</creatorcontrib><creatorcontrib>Saad, Mustafa</creatorcontrib><creatorcontrib>Guterman, Lee R</creatorcontrib><creatorcontrib>Hopkins, L Nelson</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Neurosurgery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qureshi, Adnan I</au><au>Suri, M Fareed K</au><au>Sung, Gene Y</au><au>Straw, Robert N</au><au>Yahia, Abutaher M</au><au>Saad, Mustafa</au><au>Guterman, Lee R</au><au>Hopkins, L Nelson</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Prognostic significance of hypernatremia and hyponatremia among patients with aneurysmal subarachnoid hemorrhage</atitle><jtitle>Neurosurgery</jtitle><addtitle>Neurosurgery</addtitle><date>2002-04</date><risdate>2002</risdate><volume>50</volume><issue>4</issue><spage>749</spage><epage>756</epage><pages>749-756</pages><issn>0148-396X</issn><eissn>1524-4040</eissn><abstract>Abnormal serum sodium levels (hyponatremia and hypernatremia) are frequently observed during the acute period after aneurysmal subarachnoid hemorrhage (SAH) and may worsen cerebral edema and mass effect. We performed this study to determine the prognostic significance of serum sodium concentration abnormalities.
We analyzed prospectively collected data for the placebo treatment group in a clinical trial conducted at 54 neurosurgical centers in North America. The presence of hypernatremia (serum sodium concentration of >145 mmol/L) and hyponatremia (serum sodium concentration of <135 mmol/L) was determined with serum sodium measurements obtained at admission and 3, 6, and 9 days after SAH. The effects of hypernatremia and hyponatremia on the risk of symptomatic vasospasm and on 3-month outcomes were analyzed after adjustment for the following potential confounding factors: age, sex, preexisting hypertension, admission Glasgow Coma Scale score, initial mean arterial pressure, subarachnoid clot thickness, intraventricular blood or intraparenchymal hematoma, ventricular dilation, and aneurysm size and location.
Of 298 patients in the analysis, 58 (19%) developed hypernatremia and 88 (30%) developed hyponatremia. Hypernatremia was significantly associated with poor outcomes (odds ratio, 2.7; 95% confidence interval, 1.2-6.1). A positive correlation was observed between the highest sodium values recorded and Glasgow Outcome Scale scores at 3 months (P < 0.0001 by analysis of variance). Hyponatremia was not associated with 3-month outcomes (odds ratio, 1.9; 95% confidence interval, 0.9-4.3). Neither hypernatremia nor hyponatremia was associated with the risk of symptomatic vasospasm.
Hyponatremia seems to be more common than hypernatremia after SAH. However, hypernatremia after SAH is independently associated with poor outcomes, and this association is independent of previously identified outcome predictors, including age and admission Glasgow Coma Scale scores. Further studies are needed to define the underlying mechanism of this association.</abstract><cop>United States</cop><pmid>11904025</pmid><doi>10.1097/00006123-200204000-00012</doi><tpages>8</tpages></addata></record> |
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| subjects | Adolescent Adult Double-Blind Method Female Humans Hypernatremia - complications Hyponatremia - complications Intracranial Aneurysm - complications Male Middle Aged Multicenter Studies as Topic Prognosis Prospective Studies Randomized Controlled Trials as Topic Risk Factors Subarachnoid Hemorrhage - complications Subarachnoid Hemorrhage - etiology Vasospasm, Intracranial - etiology |
| title | Prognostic significance of hypernatremia and hyponatremia among patients with aneurysmal subarachnoid hemorrhage |
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