1971
DOI: 10.1016/s0140-6736(71)92100-3
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Fallibility of Plasma-Digoxin in Differentiating Toxic From Non-Toxic Patients

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Cited by 94 publications
(19 citation statements)
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“…However, toxicity may occur with lower digoxin levels, especially if hypokalemia, hypomagnesemia, or hypothyroidism coexists. 374, 375 The concomitant use of clarithromycin, erythromycin, amiodarone, itraconazole, cyclosporine, verapamil, or quinidine can increase serum digoxin concentrations and may increase the likelihood of digitalis toxicity. 219,376,377 The dose of digoxin should be reduced if treatment with these drugs is initiated.…”
Section: Practical Use Of Digitalis In Hf Risks Of Treatmentmentioning
confidence: 99%
“…However, toxicity may occur with lower digoxin levels, especially if hypokalemia, hypomagnesemia, or hypothyroidism coexists. 374, 375 The concomitant use of clarithromycin, erythromycin, amiodarone, itraconazole, cyclosporine, verapamil, or quinidine can increase serum digoxin concentrations and may increase the likelihood of digitalis toxicity. 219,376,377 The dose of digoxin should be reduced if treatment with these drugs is initiated.…”
Section: Practical Use Of Digitalis In Hf Risks Of Treatmentmentioning
confidence: 99%
“…22 However, the range of overlap between toxic and nontoxic groups was wide, from 1.6-3.0 ng/ml.22 More recent reports indicate an even wider range of overlap, extending through virtually the entire serum digoxin concentration span encountered clinically. 23 Implicit in the clinical use of serum digoxin levels for assessing the state of digitalization are two assumptions: first, that blood levels reflect faithfully myocardial drug concentrations, and second, that a given concentration is associated with specific effect. factors can acutely alter this relationship.…”
mentioning
confidence: 99%
“…Ello se debe a que la digoxina es un fármaco con rango terapéutico estrecho, con superposición entre las dosis y Cp tóxicas y terapéuticas, con toxicidad potencialmente muy grave que, además, se puede confundir con las manifestaciones propias de la enfermedad que está siendo tratada (por ejemplo, alteraciones del ritmo cardiaco) o ser inespecífica y difícil de detectar (como, por ejemplo, alteraciones sicológicas, especialmente frecuentes en ancianos) y que puede aparecer sin que previamente haya una respuesta terapéutica (10). Así, se ha reportado entre un 13 y un 29% de incidencia de toxicidad en pacientes hospitalizados que reciben el fármaco (15,16), con una mortalidad del 39% entre ellos (17). Por tanto, iniciar un tratamiento con digoxina y citar al paciente para revisión al cabo de algunas semanas, sin más controles intermedios, es peligroso, y bien pudiera ser que de esta prácti-ca se deriven fallecimientos atribuidos a la enfermedad de base del paciente y debidos realmente a su tratamiento.…”
Section: Discussionunclassified