Antidotes for acute cardenolide (cardiac glycoside) poisoning

Entry

Cardenolides are naturally occurring histrion toxins which act primarily on the eye.
While kill with the herbaceous plant cardenolides (digoxin and digitoxin) are reported worldwide, cardiotoxicity from other cardenolides such as the yellow oleander are also a discipline job, with tens of thousands of cases of killing each year in Confederate States of America Asia.
Because cardenolides from these plants are structurally similar, acute poisonings are managed using similar treatments.
The performance of these treatments is of curiosity, particularly in the context of use of cost since most poisonings occur in developing countries where resources are very limited.Objectives

To determine the efficacy of antidotes for the direction of acute cardenolide putting to death, in constituent atropine, isoprenaline (isoproterenol), multiple – dose activated oxford gray (MDAC), fructose – 1,6 – diphosphate, sodium bicarbonate, magnesium, phenytoin and anti – digoxin Fab antitoxin.Scrutiny military science

We searched MEDLINE, EMBASE, the Controlled Trials Tone of the Cochrane Cooperation, Course Cognizance in Clinical Toxicology, Info Trac, www.google.com.au, and Discipline Credit Ordered series of studies identified by the previous searches.
We manually searched the bibliographies of identified articles and personally contacted experts in the orbit.Assortment criteria

Randomised controlled trials where antidotes were administered to patients with acute symptomatic cardenolide killing were identified.Data compendium and style

We independently extracted data on domain pattern, including the acting of randomisation, associate characteristics, type of engagement and outcomes from each domain.
We independently assessed methodological dimension of the included studies.
A pooled criticism was not appropriate.Main results

Two randomised controlled trials were identified, both were conducted in patients with yellow oleander kill.
One attempt investigated the consequence of MDAC on rate, the someone risk (RR) was 0.31 (95% authority separation (CI) 0.12 to 0.83) indicating a beneficial signification.
The second gear knowledge domain found a beneficial essence of anti – digoxin Fab antitoxin on the comportment of cardiac dysrhythmias at two period of time post – administration; the RR was 0.60 (95% CI 0.44 to 0.81).
Other benefits were also noted in both studies and serious adverse effects were minimal.
Studies assessing the significance of antidotes on other cardenolides were not identified.
One ongoing knowledge base investigating the activated wood coal for acute yellow oleander self – intoxication was also identified.Authors’ conclusions

There is some indication to suggest that MDAC and anti – digoxin Fab antitoxin may be effective treatments for yellow oleander killing.
However, the efficacy and indications of these interventions for the care of acute herb physiological condition is uncertain due to the lack of good tone controlled clinical trials.
Given pharmacokinetic differences between soul cardenolides, the upshot of antidotes administered to patients with yellow oleander killing cannot be readily translated to those of other cardenolides.
Unfortunately cost limits the use of antidotes such as anti – digoxin Fab antitoxin in developing countries where cardenolide poisonings are frequent. More research is required using relatively cheap antidotes which may also be effective.
This is a part of article Antidotes for acute cardenolide (cardiac glycoside) poisoning Taken from "Atropisol - Atropine Information" Information Blog