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Home > 医疗服务 > 专科治疗中心/专科服务 > 外科中心 - 减肥手术

外科中心 - 减肥手术

何谓肥胖
厘定肥胖的严重程度有很多标准,而最常用的是「身体密度指数」(Body Mass Index, BMI)。超出理想体重20%或以上,便属於肥胖。

「身体密度指数」(BMI) = 体重 (千克) / 身高 (米)2

亚洲人的参考标准:
 BMI
标准体重18.5 - 22.9
对健康有风险> 23.0
过重23 - 24.9
肥胖 I型25 - 29.9
肥胖 II型> 30
病态肥胖> 35

肥胖引致的健康问题
肥胖会引致各种健康问题,增加患病和死亡的风险,而BMI愈高,风险就愈大。BMI超过40的人士,其死亡率更比标准体重的人士高两倍以上。
因肥胖引发的疾病包括:
  • 第二型糖尿病
  • 睡眠窒息症
  • 高血压
  • 胆结石
  • 血脂过高
  • 生育能力下降
  • 心血管疾病
  • 某些癌症
  • 骨关节炎
  • 心理社交问题

谁需要做减肥手术?
BMI大於32至35的人士会有各种并发症,单靠饮食丶运动和药物来减重效用相当有限,减肥手术是唯一证实能有效持久减重的疗法。手术後,病者一般可於2年内减去1/2至2/3的超标体重。

微创手术减重有法
胃箍:
Lap Band
这是最常见的减肥手术。医生用可调校宽紧的矽胶圈围住胃的上半部,透过定期收紧胃箍,可减少食量而达到减重之效。

内置胃气球:
Intragastric Balloon
利用胃镜把气球经食道放进胃的上半部,能缩小胃部容量,使病者容易感到饱胀而减少进食。胃气球一般需於六个月内取出。

由於手术以微创方式进行,引起并发症的机会甚低。然而,手术只是体重控制计划的一部份。病者於手术後必须持续控制饮食,并配合运动,方可达到持久而健康的减重目的。
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Source URL: https://www.hksh-hospital.com/en/node/6875