Beaumont Hospital in Royal Oak, Michigan, US has become the first hospital to perform a cardiac surgery using Domain Surgical's FMwand ferromagnetic surgical system.
The surgeon used the FMwand in a re-do open-heart operation in a 68-year-old who had previously undergone aortic valve replacement and coronary artery bypass.
Beaumont Hospital cardiothoracic surgeon Dr Frank Shannon said FMwand was used to separate a pseudo-aneurysm from the surrounding heart, lung and arteries without rupture or damage to the adjacent structures.
"The FMwand functioned like a 'hot, cold scalpel' in that the indistinct boundaries between adjacent scarred tissues were clearly separated with minimal bleeding and no significant collateral damage," Dr Shannon said.
"This differs from traditional electrocautery, which 'burns' the tissue to prevent bleeding and creates tissue separation by heat damage to adherent structures."
The patient developed the pseudo-aneurysm, an abnormal collection of blood outside the walls of her aorta, within two years of her initial procedure. The condition makes the aorta walls thin and prone to rupture with manipulation or cautery.
The FMwand, which consists of a wire loop with a proprietary coating that heats instantly on activation and quickly cools on deactivation, reduces unintended tissue damage compared to standard monopolar and bipolar electrosurgical instruments or laser devices.
Traditional electrosurgical instruments can also produce muscle stimulation and sparking within tissues, which Dr Shannon reported were not experienced when using the FMwand, according to Domain Surgical.
Domain Surgical president and CEO David J McNally said the FMwand is superior to traditional thermal dissection devices as it eliminates electrical energy passage into surrounding tissues, significantly mitigating tissue damage.
"This reduction in tissue damage may lead to faster healing, which ultimately results in better outcomes for patients," McNally said.