True Robert H, Elliott Robert M
Elliott and True Medical Group PC, New York, New York 10022, USA.
Dermatol Surg. 2002 Jun;28(6):463-8. doi: 10.1046/j.1524-4725.2002.01270.x.
Local anesthesia by the traditional injection technique is central to optimizing patient comfort during hair transplant procedures. However, even when carefully and properly performed, some patients still describe their treatment sessions as painful.
To determine if patients undergoing hair transplantation experience less pain and discomfort when their local anesthesia is performed with the Wand (as of spring 2001, the Wand has been renamed "CompuMed- Featuring the Wand Handpiece"), a microprocessor pump that precisely controls the infusion rate and pressure of local anesthetic solution.
We used combined retrospective studies and a prospective blinded study of men and women who received hair transplantation treatments between January 1999 and March 2001 at our private outpatient clinics in the United States. A total of 101 patients compared their experiences during their hair transplant sessions performed by us before and after we started using the Wand. Thirty-nine patients compared their experiences during treatments done by 32 other medical groups and when we used the Wand. In addition, 88 patients compared the Wand to injection while blinded to technique. The outcomes were measured with patient pain rating questionnaires using the Wong-Baker Faces Pain Rating Scale (0, no pain-5, severe pain).
Patients in all three study groups reported that anesthesia with the Wand was less painful. Wand anesthesia was overwhelmingly (68%) described as associated with none (0) or very little (1) pain. Surprisingly, Wand anesthesia was associated with superior comfort not only during the administration of anesthesia (P =.005), but throughout the treatment session and during the first 48 postoperative hours.
Microprocessor-controlled local anesthesia with the Wand is superior to traditional injection in consistently producing comfortable hair transplant treatments.
在毛发移植手术中，采用传统注射技术进行局部麻醉是优化患者舒适度的关键。然而，即便操作仔细得当，仍有部分患者称治疗过程很疼。
确定使用Wand（截至2001年春季，Wand已更名为“配备Wand手持件的CompuMed”）进行局部麻醉时，接受毛发移植的患者是否会减少疼痛和不适。Wand是一种微处理器泵，可精确控制局部麻醉溶液的输注速率和压力。
我们对1999年1月至2001年3月在美国私人门诊接受毛发移植治疗的男性和女性进行了回顾性研究与前瞻性盲法研究相结合的研究。共有101名患者比较了我们开始使用Wand前后他们在毛发移植手术中的体验。39名患者比较了他们在由其他32个医疗组进行的治疗以及我们使用Wand时的体验。此外，88名患者在对技术不知情的情况下比较了Wand和注射两种方式。通过使用面部表情疼痛评分量表（0分，无疼痛；5分，剧痛）的患者疼痛评分问卷来衡量结果。
所有三个研究组的患者均报告称，使用Wand进行麻醉时疼痛较轻。绝大多数（68%）患者表示使用Wand麻醉时无疼痛（0分）或仅有轻微疼痛（1分）。令人惊讶的是，Wand麻醉不仅在麻醉给药期间（P = 0.005），而且在整个治疗过程以及术后48小时内都带来了更高的舒适度。
使用Wand进行微处理器控制的局部麻醉在持续提供舒适的毛发移植治疗方面优于传统注射。
