Adverse drug reactions are appreciably harmful or unpleasant reactions resulting from an intervention related to the use of medical products, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product. Given medical case reports extracted from MEDLINE, the task is to classify whether the case report mentions the presence of any adverse drug reaction. Classify your answers into non-adverse drug event and adverse drug event.

PDT was performed twice, but after the second cycle, patient developed choroidal ischemia and the visual outcomes were poor.
non-adverse drug event

We report a case of torsade de pointes following a single oral dose of amiodarone (1400 mg or 30 mg kg-1) administered after short intravenous loading for prevention of paroxysmal atrial flutter.
adverse drug event

We believe that mucositis was a contributing factor to this case of fatal hyperkalemia after administration of succinylcholine, with a mechanism similar to that reported with thermal injury.

adverse drug event