The relationship between hyponatremia and the prognosis of Guillain-Barré syndrome
10.3760/cma.j.issn.1006-7876.2013.09.005
- VernacularTitle:低钠血症与吉兰-巴雷综合征预后的相关性
- Author:
Yueheng WANG
;
Junyan LIU
- Publication Type:Journal Article
- Keywords:
Guillain-Barré syndrome;
Hyponatremia;
Prognosis
- From:
Chinese Journal of Neurology
2013;46(9):597-600
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the incidence of hyponatremia in patients with Guillain-Barré syndrom (GBS) and to explore whether hyponatremia is an important predictor of poor outcome.Methods All 455 GBS patients met the inclusion criteria and were divided into three groups as mild,moderate and severe GBS according to Medical Research Council sumscore (MRC sumscore) at nadir.Hyponatremia is defined as serum sodium concentration below 135 mmol/L at nadir.The incidences of hyponatremia in GBS patients with different MRC sumscore were analyzed by x2 tests.Logistic regression models were performed to determine risk factors of hyponatremia and poor prognosis.Results Of all the 455 GBS patients,mild,moderate and severe groups patients were 178,100 and 177 respectively,and 98 (21.5％) GBS patients had hyponatremia.Hyponatremia was more often detected in severe GBS cases (64,36.2％),than in mild (21,11.8％) or moderate (13,13.0％,x2 =28.921,17.074 respectively; all P ＜ 0.01) cases,but there was no significant difference between mild and moderate patients (x2 =0.086 ; P =0.769).Logistic regression analysis identified 3 predictors of hyponatremia:age ＞ 50 (OR =2.013,95％ CI 1.155-3.508,P =0.014),facial weakness (OR =2.493,95％ CI 1.423-4.369,P =0.001) and mechanical ventilation (OR =12.871,95％ CI 5.484-30.207,P =0.001).The presence of hyponatremia (OR =12.770,95％ CI3.419-47.701,P =0.001) and bulbar weakness (OR =3.391,95％ CI 1.182-9.733,P =0.023)predicted death in acute stage.Conclusion As an important predictor of poor outcome in GBS patients,hyponatremia is more likely occurred in patients with older age,facial weakness or respiratory failure.
