Niamtu Joe
Cosmetic Facial Surgery, Richmond, Virginia 23235, USA.
Dermatol Surg. 2008 Jul;34(7):912-21. doi: 10.1111/j.1524-4725.2008.34177.x.
For years, traditional upper blepharoplasty incisions have been made with scalpel and or scissors. Although effective, increased intraoperative bleeding can be problematic. Bleeding slows the surgery; obscures the surgical field; and can lead to increased swelling, bruising, and pain. Bloodless modalities for upper blepharoplasty include radiowave surgery, electrocautery, and CO(2) laser technology. These modalities provide a virtually dry and bloodless surgical field, which translates into faster surgery as well as decreased postoperative bleeding, bruising, and pain.
The purpose of this study was to determine which modality (CO(2) laser vs. 4.0-MHz radiowave surgery) produced the most aesthetic postoperative upper blepharoplasty scar at 1 year in a consecutive cohort of patients operated by the same surgeon. A search of the literature does not show a similar study in Caucasian patients. The mechanics and physics of CO(2) laser and 4.0-MHz radiowave surgery are also discussed.
Thirty consecutive patients underwent upper eyelid blepharoplasty for cosmetic purposes performed by the author. In all patients one upper eyelid was treated (skin, muscle, and fat) with a 4.0-MHz radiowave surgery unit (Surgitron, Ellman International) set at 12 W on the cut/coag mode, and the contralateral side was treated with an ultrapulse CO(2) laser (Encore, Lumenis Inc.) using a 0.8-mm handpiece on the continuous wave setting at 8 W. Six blepharoplasty-experienced, blinded observers consisting of doctors from five different cosmetic specialties evaluated standardized digital images of each patient taken 1 year after surgery. The photographs were randomized, and the blinded examiners were asked to choose the side that had the most esthetic postoperative incision.
Of the 30 consecutive patients, 23 completed the required 1-year follow-up. Surgeons evaluating these patients scored the radiowave surgery side to look best in 37% of the cases (43/115), the CO(2) laser side was scored to look better in 37% (42/115), and both sides to be to be equally aesthetic in 26% of the cases.
Both 4.0-MHz radiowave surgery and CO(2) laser incision produce simultaneous incision and coagulation. Both modalities restrict blood loss in the average four lid blepharoplasty surgery to less than 1 cm(3) of blood and decrease operative time. In this study, qualified blinded surgeons judging 12-month postblepharoplasty photos of incisional scars were unable to differentiate a statistically significant difference between the two modalities and the aesthetic quality of the scars. This represents the first study of its type in the literature utilizing Caucasian patients.
多年来,传统上睑成形术的切口是用手术刀和/或剪刀制作的。尽管有效,但术中出血增加可能会带来问题。出血会减慢手术速度;模糊手术视野;并可能导致肿胀、瘀伤和疼痛加剧。上睑成形术的无血手术方式包括射频手术、电灼术和二氧化碳激光技术。这些方式提供了一个几乎干燥且无血的手术视野,这意味着手术速度更快,术后出血、瘀伤和疼痛也会减少。
本研究的目的是确定在同一外科医生连续治疗的一组患者中,哪种方式(二氧化碳激光与4.0兆赫射频手术)在术后1年产生的上睑成形术瘢痕最美观。文献检索未发现针对白种人患者的类似研究。还讨论了二氧化碳激光和4.0兆赫射频手术的力学和物理原理。
作者连续为30例患者进行了出于美容目的的上睑成形术。所有患者的一侧上睑(皮肤、肌肉和脂肪)使用设置为切割/凝血模式、功率为12瓦的4.0兆赫射频手术设备(Surgitron,Ellman International)进行治疗,对侧使用超脉冲二氧化碳激光(Encore,Lumenis Inc.),使用0.8毫米手持探头,在连续波设置下以8瓦的功率进行治疗。由来自五个不同美容专业的医生组成的六名有上睑成形术经验的盲法观察者对每位患者术后1年拍摄的标准化数字图像进行评估。照片是随机排列的,要求盲法检查者选择术后切口最美观的一侧。
在这30例连续患者中,23例完成了所需的1年随访。评估这些患者的外科医生在37%的病例(43/115)中认为射频手术一侧看起来最佳,在37%(42/115)的病例中认为二氧化碳激光一侧看起来更好,在26%的病例中认为两侧同样美观。
4.0兆赫射频手术和二氧化碳激光切口都能同时进行切割和凝血。两种方式在平均四睑上睑成形术手术中都将失血量限制在不到1立方厘米,并缩短了手术时间。在本研究中,合格的盲法外科医生在评判上睑成形术后12个月的切口瘢痕照片时,无法区分两种方式之间在统计学上的显著差异以及瘢痕的美观质量。这是文献中首次利用白种人患者进行的此类研究。