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  • 1
    ISSN: 1432-2072
    Keywords: Antidepressant drug ; Plasma drug level ; Orthostatic hypotension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Orthostatic hypotension, the clinically most important side effect in treatment with tricyclic antidepressants, was investigated in a double-blind study with clomipramine and the selective serotonin reuptake inhibitor citalopram given for 5 weeks. All patients were initially given placebo for 1 week. In the clomipramine group (n=17) a significant orthostatic drop in the systolic blood pressure was observed during treatment; this remained significant over the whole investigational period. A curvilinear correlation was demonstrated between the orthostatic drop in systolic blood pressure and the plasma levels of clomipramine and desmethylclomipramine. The most pronounced orthostatic reaction was thus seen in 1–2 weeks, at plasma levels of 25–75 μg/l (clomipramine). The correlation between the subjective symptoms and the measured orthostatic drop was poor, as was the correlation between the subjective symptoms and the plasma levels of the two active compounds. The change in orthostatic heart rate during clomipramine treatment was insignificant. In the citalopram group (n=15) no significant changes in orthostatic blood pressure or heart rate were demonstrated during treatment and these patients had no orthostatic complaints.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2072
    Keywords: Elderly patients ; Antidepressive treatment ; Orthostatic blood pressure ; Systolic time intervals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Thirteen elderly depressed patients (age 60–82 years) were treated for 5 weeks with a fixed dose of amitriptyline 100 mg (sustained release preparation). In all patients the sum of concentrations of amitriptyline and nortriptyline exceeded 130 μg/l, which is the recommended plasma level. Cardiovascular side effects were recorded by monitoring heart rate, blood pressure, standard ECG and systolic time intervals. During treatment, a transient increase in the supine heart rate was observed without significant changes in the supine blood pressure. The orthostatic drop in blood pressure was markedly increased during treatment without a compensatory increase in heart rate, and these changes remained significant during the whole investigational period. PQ and QRS were significantly increased during treatment, and significant changes in the systolic time intervals were found indicating impairment of myocardial conduction and contractility. In three patients medication was discontinued due to cardiovascular side effects.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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