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The role of copeptin in patients with subarachnoid haemorrage.
Hellenic Journal of Nuclear Medicine 2015 September
OBJECTIVE: Subarachnoid haemorrhage is responsible to a great extend for the death rate of patients who are hospitalised in intensive care units (ICU) with haemorrhage. The early detection of its severity plays an important role for the resulting health of the patients. Neurohormone Copeptin is the C-end of pro-arginine vasopressin in plasma has been used as a prognostic marker in a number of various illnesses (acute myocardial infarction, heart and renal failure, acute dyspnoea, intracerebral and subarachnoid haemorrhage, ischaemic stroke, liver cirrhosis, acute pancreatitis). However, its prognostic value in subarachnoid haemorrhage has yet to be valued. The aim of our study was to evaluate copeptin plasma values of patients with subarachnoid haemorrhage hospitalised in the ICU, as a prognostic factor for the severity of this disease.
PATIENTS AND METHODS: We studied 32 patients, 21 male, 11 female, (average age 59±7 years), who were hospitalised in the ICU of Univ. Hospital of Alexandroupolis. Plasma Copeptin values were measured in the Nuclear Medicine Laboratory, with the Radioimmunoassay (RIA) method. The appropriate kit, from Phoenix Pharmaceuticals Inc. (USA), was used.
STATISTICAL ANALYSIS: The x(2) student test was used for statistical analysis.
RESULTS: The cut-off value of copeptin ranged between 0.4-4.4 pmol/L. 19 patients showed gradual increase of copeptin values, (125-578 pmol/L), with a bad prognosis of the illness (P<0.005). Four of them with extremely high copeptin values died. Decrease of copeptin values for the rest 15 patients were correlated with the improvement of their clinical condition (P<0.005). Eleven patients appeared to have high values, followed by the gradual decrease by a range of 85-12pmol/L, and had a good prognosis of the condition. Two patients with normal values demonstrated to have a good clinical condition.
CONCLUSION: Patients with a gradual increase of copeptin values showed to have bad prognosis of the disease. Four with extremely high copeptin values passed away, while patients with a gradual decrease or a normal amount of copeptin values had good prognosis. It is supported that copeptin values are a reliable prognostic factor in monitoring patients with intracranial haemorrhage.
PATIENTS AND METHODS: We studied 32 patients, 21 male, 11 female, (average age 59±7 years), who were hospitalised in the ICU of Univ. Hospital of Alexandroupolis. Plasma Copeptin values were measured in the Nuclear Medicine Laboratory, with the Radioimmunoassay (RIA) method. The appropriate kit, from Phoenix Pharmaceuticals Inc. (USA), was used.
STATISTICAL ANALYSIS: The x(2) student test was used for statistical analysis.
RESULTS: The cut-off value of copeptin ranged between 0.4-4.4 pmol/L. 19 patients showed gradual increase of copeptin values, (125-578 pmol/L), with a bad prognosis of the illness (P<0.005). Four of them with extremely high copeptin values died. Decrease of copeptin values for the rest 15 patients were correlated with the improvement of their clinical condition (P<0.005). Eleven patients appeared to have high values, followed by the gradual decrease by a range of 85-12pmol/L, and had a good prognosis of the condition. Two patients with normal values demonstrated to have a good clinical condition.
CONCLUSION: Patients with a gradual increase of copeptin values showed to have bad prognosis of the disease. Four with extremely high copeptin values passed away, while patients with a gradual decrease or a normal amount of copeptin values had good prognosis. It is supported that copeptin values are a reliable prognostic factor in monitoring patients with intracranial haemorrhage.
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