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1.
Rev Assoc Med Bras (1992) ; 45(2): 142-5, 1999.
Article in Portuguese | MEDLINE | ID: mdl-10413917

ABSTRACT

UNLABELLED: The acute phase response (APR) is characterized by proteolysis with decreased body cell mass, hyperglycemia, body water retention and renal dysfunction, which we hypothesised could affect magnesium serum levels. The aim of this study was to compare serum magnesium levels among hospitalized patients with or without APR. METHOD: All serum magnesium results (n = 527) corresponding to a six-months period were searched at University Hospital mainframe. Relevant laboratorial and clinical details were also registered. All cases of diabetes mellitus, chronic renal insufficiency, or serum creatinine > 1.5 mg/dl were excluded. APR was defined by the presence of fever plus severe trauma or infection plus leukopenia or leukocytosis. RESULTS: From a total of 214 patients, sixty-nine (32.2%) met the criteria for APR positivity (APR [symbol: see text]). Groups were paired for age, color, gender, diuretic use and edema presence. Hypomagnesemia was registered among 72% of cases, without statistical difference (p = 0.06) among APR [symbol: see text] and APR theta patients (63.8 vs 75.9%). Serum magnesium levels (median; range) were higher among APR [symbol: see text] cases, when compared to APR theta ones: 1.75; 1-3 vs 1.6; 0.9-2.9 m/dl, the same occurring with glycemia (115; 49-236 vs 99; 61-191 mg/dl) and serum creatinine (mean +/- SD): 0.8840 +/- 306 vs 0.803 +/- 0.257 mg/dl. Hypermagnesemia was more common among APR [symbol: see text] cases: 8.7 vs 2.1%. CONCLUSIONS: Our results suggest that higher magnesium serum levels seen in APR [symbol: see text] patients may be attributed to subclinical renal ischemia and possibly to increased glucose serum levels.


Subject(s)
Acute-Phase Reaction/blood , Magnesium Deficiency/blood , Magnesium/blood , Acute-Phase Reaction/complications , Adult , Female , Hospitalization , Humans , Hyperglycemia/blood , Magnesium Deficiency/etiology , Male , Middle Aged , Retrospective Studies
2.
Rev. Assoc. Med. Bras. (1992, Impr.) ; 45(2): 142-5, abr.-jun. 1999. tab
Article in Portuguese | LILACS | ID: lil-233424

ABSTRACT

Objetivo. A resposta de fase aguda (RFA), caracteriza-se por proteólise, com hipotrofia da massa celular corporal, hiperglicemia, retençao hídrica e disfunçao renal, fenômenos que potencialmente afetam os níveis de magnésio (Mg++) sérico. O objetivo do estudo foi comparar os níveis séricos de Mg++ entre pacientes hospitalizados, com ou sem RFA. Métodos. Obteve-se um banco de dados do mainframe do Hospital-Escola contendo informaçoes sobre dosagens bioquímicas simultâneas de creatinina, glicose e magnésio e outros eletrólitos séricos de 214 pacientes internados, sem diabetes mellitus, insuficiência renal crônica ou creatinina sérica > 1,5mg/dl. A presença de RFAÅ foi definida pela presença de febre mais diagnósticos de trauma, cirurgia recente ou infecçao, além de leucopenia ou leucocitose. Resultados. Dos casos, 32,2 por cento foram considerados RFA. Nao houve diferença entre os grupos quanto à idade, gênero e cor. Houve pareamento entre os grupos RFAÅ e RFAQ quanto à freqüência de uso de diuréticos (10,1 vs 11,7 por cento) e presença de edema (3 vs 6 por cento). Hipomagnesemia ocorreu em 154 casos (72 por cento do total), sendo 75,9 por cento no grupo RFAQ e 63,8 por cento no grupo RFAÅ (p=0,06). Os níveis de Mg++ (mediana; faixa de variaçao) foram maiores no grupo RFAÅ: (1,75; 1-3 vs 1,6; 0,9-2,9mg/dl), o mesmo ocorrendo com a glicemia (115; 49-236 vs 99; 61-191 mg/dl) e creatinina sérica (0,884 + 0,306 vs 0,803 + 0,257 mg/dl). Hipermagnesemia foi mais comum no grupo RFAÅ: 8,7 vs 2,1 por cento. Conclusoes. Pacientes RFAÅ apresentam maiores níveis de magnésio sérico, fenômeno possivelmente relacionado com aumentos da glicemia, uréia e creatinina séricas.


Subject(s)
Humans , Female , Middle Aged , Adult , Acute-Phase Reaction/blood , Magnesium/blood , Magnesium Deficiency/blood , Acute-Phase Proteins , Retrospective Studies , Acute-Phase Reaction/complications , Hospitalization , Hyperglycemia/blood , Magnesium Deficiency/etiology
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