Abe Takumi, Tanioka Daisuke, Sugiyama Koichi, Kawamo Michiari, Murakami Kozo, Izumiyama Hitoshi
Department of Neurosurgery, Showa University School of Medicine, Shinagawa-ku, Tokyo 142-8666, Japan.
Surg Neurol. 2007 Jan;67(1):40-4; discussion 44-5. doi: 10.1016/j.surneu.2006.02.050. Epub 2006 Oct 6.
Post operative scar tissue makes transsphenoidal surgery for recurrent pituitary lesions very difficult. However, with the use of a new cautery system, known as the EMF system, we were able to perform the surgical procedures with relative ease. In this article, we report the advantages and clinical applications of this new instrument in transnasal reoperation.
The EMF system generates a high frequency current of 13.56 MHz that is focused on the target. This enables it to coagulate, cut, and vaporize tissue in a pinpoint fashion. The bayonet and pencil-type hand pieces of the EMF system are slim, and the tips of the probe are flexible. This enables the surgeon to easily reach deep narrow spaces. We have used the EMF system for transsphenoidal surgery on recurrent pituitary lesions in 18 patients. The system was used to cut and vaporize scar tissue and vaporize firm and fibrotic tumor tissue.
During surgery, the system could easily cut and vaporize scarred tissues in the nasal cavity, the sphenoid sinus, and the sella, without damage to the surrounding tissue. In addition, in 3 patients who had extremely fibrotic and firm tumors, we were able to easily vaporize the tumor with safety.
The EMF system enables the surgeon to cut and vaporize tissue with ease and with minimal injury to the surrounding structures. It was particularly valuable in the resection of firm tumors. It may also shorten the operating time because of quick vaporization of the firm tissue.
术后瘢痕组织使得复发性垂体病变的经蝶窦手术非常困难。然而，通过使用一种名为EMF系统的新型电灼系统，我们能够相对轻松地进行手术操作。在本文中，我们报告了这种新器械在经鼻再次手术中的优势和临床应用。
EMF系统产生13.56 MHz的高频电流，该电流聚焦于目标。这使其能够精确地凝固、切割和汽化组织。EMF系统的刺刀式和笔式手持件很纤细，探头尖端很灵活。这使外科医生能够轻松到达深部狭窄空间。我们已将EMF系统用于18例复发性垂体病变患者的经蝶窦手术。该系统用于切割和汽化瘢痕组织以及汽化坚硬和纤维化的肿瘤组织。
手术过程中，该系统能够轻松地切割和汽化鼻腔、蝶窦和鞍内的瘢痕组织，而不会损伤周围组织。此外，在3例肿瘤极其纤维化和坚硬的患者中，我们能够安全地轻松汽化肿瘤。
EMF系统使外科医生能够轻松地切割和汽化组织，对周围结构的损伤最小。它在切除坚硬肿瘤方面特别有价值。由于坚硬组织的快速汽化，它还可能缩短手术时间。
