Abstract：
BACKGROUND: Temporary hair loss at the recipient site after hair restoration surgery is called shock loss (SL). This study analyzed the risk factors for SL among patients who received follicular unit excision.
METHODS: This study included 621 patients (554 males and 67 females). Twenty-three patients had SL (9 males and 14 females with a mean age of 40.8 years). The prevalence of SL was analyzed in relation to sex, age, graft follicular units, cause of alopecia, diabetes mellitus, smoking, drinking alcohol, and local anesthesia agent.
RESULTS: Sex was identified as a risk factor for SL (odds ratio [OR]: 30.18; 95% confidence interval [CI] 9.43-96.55; p<0.001). Among female patients, age was identified as a risk factor for SL (OR:1.07; 95% CI 1.00-1.15; p=0.039). Over 40 years, the female pattern hair loss group had a significantly higher risk for SL than a female cosmetic group younger than 39 years.
CONCLUSIONS: Sex was the only risk factor found for SL in this study. In addition, age was identified as a risk factor for SL among female patients. We believe our results provide information and risk factors for SL, not only for hair transplant surgeons, but also patients who will receive follicular unit excision.
METHODS: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
METHODS: This study included 621 patients (554 males and 67 females). Twenty-three patients had SL (9 males and 14 females with a mean age of 40.8 years). The prevalence of SL was analyzed in relation to sex, age, graft follicular units, cause of alopecia, diabetes mellitus, smoking, drinking alcohol, and local anesthesia agent.
RESULTS: Sex was identified as a risk factor for SL (odds ratio [OR]: 30.18; 95% confidence interval [CI] 9.43-96.55; p<0.001). Among female patients, age was identified as a risk factor for SL (OR:1.07; 95% CI 1.00-1.15; p=0.039). Over 40 years, the female pattern hair loss group had a significantly higher risk for SL than a female cosmetic group younger than 39 years.
CONCLUSIONS: Sex was the only risk factor found for SL in this study. In addition, age was identified as a risk factor for SL among female patients. We believe our results provide information and risk factors for SL, not only for hair transplant surgeons, but also patients who will receive follicular unit excision.
METHODS: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
摘要：
背景：头发修复手术后受体部位的暂时性脱发称为休克损失（SL）。这项研究分析了接受卵泡单位切除的患者中SL的危险因素。
方法：本研究纳入621例患者（男性554例，女性67例）。23名患者患有SL（9名男性和14名女性，平均年龄为40.8岁）。分析了SL的患病率与性别的关系，年龄,移植卵泡单位，脱发的原因，糖尿病,吸烟,饮酒,和局部麻醉剂。
结果：性别被确定为SL的危险因素（比值比[OR]：30.18；95％置信区间[CI]9.43-96.55；p<0.001）。在女性患者中,年龄被确定为SL的危险因素(OR:1.07;95%CI1.00-1.15;p=0.039).40多年来,女性型脱发组的SL风险显著高于39岁以下的女性美容组.
结论：性别是本研究中发现的SL的唯一危险因素。此外,在女性患者中,年龄被确定为SL的危险因素.我们相信我们的结果为SL提供了信息和风险因素，不仅仅是头发移植外科医生，还有接受卵泡单位切除的患者。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
方法：本研究纳入621例患者（男性554例，女性67例）。23名患者患有SL（9名男性和14名女性，平均年龄为40.8岁）。分析了SL的患病率与性别的关系，年龄,移植卵泡单位，脱发的原因，糖尿病,吸烟,饮酒,和局部麻醉剂。
结果：性别被确定为SL的危险因素（比值比[OR]：30.18；95％置信区间[CI]9.43-96.55；p<0.001）。在女性患者中,年龄被确定为SL的危险因素(OR:1.07;95%CI1.00-1.15;p=0.039).40多年来,女性型脱发组的SL风险显著高于39岁以下的女性美容组.
结论：性别是本研究中发现的SL的唯一危险因素。此外,在女性患者中,年龄被确定为SL的危险因素.我们相信我们的结果为SL提供了信息和风险因素，不仅仅是头发移植外科医生，还有接受卵泡单位切除的患者。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
