Why the study?
Does over-the-wire guiding improve technical success compared to along-the-wire guiding during percutaneous coronary angioscopy in patients with coronary heart disease?
Does over-the-wire guiding improve technical success compared to along-the-wire guiding during percutaneous coronary angioscopy in patients with coronary heart disease?
Over-the-wire guiding for percutaneous coronary angioscopy promises superior alignment compared to along-the-wire guiding, though technical problems remain.
Alignment failures predominate with along-the-wire guiding; leaves open whether over-the-wire improves technical success in coronary angioscopy.
The technical success of percutaneous coronary angioscopy using different guiding techniques was evaluated in 17 patients before (n = 17) and after (n = 8) coronary angioplasty. Steering the angioscope along or over a guidewire was successful in both groups; failures were predominantly due to insufficient alignment of the angioscope using along-the-wire guiding. Although over-the-wire angioscopy promises superior guiding and alignment capabilities, several technical problems remain unsolved.
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Franzen et al. (1992) studied this question.