A new technique for evaluating cutaneous vascularity in complicated conjoined twins

Area of Science:

• Medical Imaging
• Surgical Planning
• Pediatric Surgery

Background:

• Ischiopagus tripus conjoined twins present complex surgical challenges.
• Accurate delineation of shared vascular territories is critical for safe separation.
• Conventional imaging techniques have limitations in assessing superficial vascularity.

Observation:

• Traditional methods like radiography, CT, and angiography failed to precisely map pelvic skin vascular territories.
• Qualitative assessment of fluorescein delivery under UV light introduced subjective errors.
• Perfusion fluorometry, a quantitative technique, was employed for precise tissue fluorescence measurement.

Findings:

• Sequential fluorescein injections via perfusion fluorometry accurately identified individual twin contributions to shared pelvic and leg skin.
• The technique precisely guided surgical incision placement.
• Intraoperative assessment of skin flap viability was reliably achieved.

Implications:

• Perfusion fluorometry offers a breakthrough in surgical planning for complex conjoined twins.
• This method enhances the safety and success rate of conjoined twin separations.
• The technique shows promise for evaluating tissue perfusion in diverse clinical scenarios beyond conjoined twinning.