Veno Varicose Vein Information Library

27/04/2026

精靈一點 4月1日(星期三)
1400 - 1500 電台版
[外科醫學院系列]
主題：下肢慢性缺血
嘉賓：謝卓華醫生 (血管外科專科醫生)
🌐https://www.rthk.hk/radio/radio1/programme/healthpedia/episode/1089493?fbclid=IwY2xjawRY00tleHRuA2FlbQIxMQBzcnRjBmFwcF9pZBAyMjIwMzkxNzg4MjAwODkyAAEebbycE33E-SSs5APmYdBMSsLSdfrIvZ5f2KUrZM_KVLRzRzmPu9YSNdjF3lg_aem_3zJL048QWdXe7_TtiYtjag

#下肢慢性缺血 #外科醫學院系列 #血管外科 #謝卓華醫生

24/04/2026

Occluded Iliac vein opened up by angioplasty & stenting.
Iliac vein stent in situ.
Patent Iliac vein with no more collateral veins.
.

31/03/2026

A chronic occluded leg artery was reopened, and with a metallic stent inserted. 
下肢閉塞了的血管，手術後暢通過來，並植入金屬支架

25/03/2026

#靜脈曲張 可變濕疹
慢性潰瘍 站立工作
孕婦屬高危群組
穿著醫療壓力襪減慢惡化

靜脈曲張可變濕疹、慢性潰瘍 站立工作、孕婦屬高危群組 穿著醫療壓力襪減慢惡化 - 香港大學外科學系榮譽臨床副教授 #謝卓華醫生

03/03/2026

Varicose veins

are the blood vessels that carry blood back to the heart. Varicose veins are abnormally enlarged and tortuous veins that are visible just below the surface of the skin. Smaller veins in the skin itself are sometimes called ‘thread veins’ or ‘spider veins’. Sometimes, spider veins can also be due to underlying varicose veins. It is advisable to seek medical advice for these conditions before complications arise.

Varicose veins are due to weakness in the wall of superficial veins, and this leads to stretching. The stretching causes failure of the one-way valves inside the veins. These valves normally only allow the blood to flow up the leg towards the heart. If the valves leak, then blood can flow back the wrong way when standing. This reverse flow (venous reflux) causes increased pressure on the veins, which bulge and become varicose. They may also be caused by occupations that require prolonged standing or weight bearing which increase pressure on the leg veins. They often appear during pregnancy and while they may become less prominent in the weeks after delivery, they tend not to disappear completely. Varicose veins often run in families (the precise form of inheritance is not well understood) and as you get older, they are more likely to occur.

The raised pressure in the vein system caused by the leaky valves frequently gives rise to aching, throbbing, itching and a feeling of fullness. Inflammation and bleeding from the veins can occur if they are traumatised. The increased pressure can sometimes cause complications such as eczema, brown discolouration, ulceration and scarring.

Veins are the blood vessels that carry blood back to the heart. Varicose veins are abnormally enlarged and tortuous veins that are visible just below the sur...

25/02/2026

What is the radiofrequency ablation of varicose vein?
How is radiofrequency ablation varicose veins treatment done?
How is radiofrequency ablation of varicose vein different from conventional surgery?
How soon after rf ablation for varicose vein can I return to normal activity?
What are the key benefits of radiofrequency ablation treatment for varicose veins?
Is rf ablation for varicose veins suitable for all varicose veins?

🌐https://www.veno.com.hk/en/radiofrequency-vein-ablation/

16/02/2026

祝 龍馬精神 萬事勝意

29/12/2025

嚴重靜脈曲張 #抽筋 #爛腳 #截肢

#謝卓華醫生
#健康關注組

靜脈曲張的形成原因
靜脈曲張通常發生在雙腿，因為腿部靜脈需要承受長時間下垂的壓力。當活瓣閉合不全時，血液逆流會造成靜脈膨脹，出現彎曲或突出。這一問題的高危因素包括：

長時間站立：如飲食業、服務業、紀律部隊等職業。
肥胖：腹部脂肪壓迫靜脈，增加血液回流的困難。
家族遺傳：具有靜脈曲張家族史者風險更高。
懷孕：胎兒壓迫腹部靜脈，可能損害活瓣功能。

女性患靜脈曲張的比例約為男性的兩倍。

靜脈曲張可分為六個階段：
第一期：蜘蛛網狀靜脈，僅表現為表層血管擴張，無不適。
第二期：血管明顯彎曲或突出，但無疼痛感。
第三期：腿部腫脹，壓下去會有凹陷，伴隨沉重感或夜間抽筋。
第四期：皮膚開始出現色素沉著，可能伴隨炎症。
第五期：皮膚瘙癢，出現難以癒合的小傷口。
第六期：形成慢性潰瘍，傷口可能感染或惡化為皮膚癌。

健康關注組, 靜脈曲張, 謝卓華醫生人體的血管分為兩種：動脈與靜脈。動脈負責將血液從心臟輸送至全身，而靜脈則將血液回流至心臟。由於從腳到心臟的靜脈回流需要克服地心引力，因此靜脈內部設有單向活瓣，確保血液只.....

22/12/2025

聖誕快樂，新的一年充滿希望🎄
Merry Christmas and a hopeful New Year!

23/11/2025

血液透析(洗血)
「洗腎」是末期腎衰竭病人延續生命的方案。洗腎有分作血液透析(Haemodialysis)和腹膜透析(Peritoneal Dialysis)兩種，亦即是俗稱的「洗血」和「洗肚」，這兩種方法各有其利弊。洗肚相對簡單，需要每日進行，較為困身，但牽涉資源較少；洗血不需每天進行，可每星期兩至三次，每次3至5小時，但需要有洗血機配合，並需要在事前接受手術製造一個出入血位。從時間而言，洗血相對沒有每天都要洗肚那麼困身，較適合年紀輕及在職人士，但所需的資源較多。

香港的公共醫療政策，從社會資源的宏觀角度，是以洗肚為先。很多其他地方，資源充裕的，則會以洗血為先。不同地方會有不同的醫療政策，沒有對錯。洗血是用洗腎機從病人身體中抽出血液淨化，再把血液輸送回體內，這過程需要病人身體有一個出入血位。因此病人須在開始洗血治療前接受一個手術，製造可供血液透析的血管通路，這個血管通道，可以說是洗血病人的「生命線」！

若情況理想，最耐用的生命線，是在前臂找一條粗壯的表淺靜脈血管，連接到動脈血管，血液便會直接從動脈流到靜脈，兩三個月後，這條表淺靜脈，便會形成一條血液流量極大的瘻管(Arteriovenous Fistula)，供洗血時插針取血及回血用。若沒有理想的表淺靜脈，也可用人造血管(Arteriovenous Graft)，但耐用性當然不及自身血管。

手術成功的關鍵，是病人要有理想的血管供使用，但在香港很多時病人已經因為之前入院打針、吊鹽水等因素令靜脈血管萎縮，使手術變得困難。若病人不適合接受手術，或找不到合適血管，也可用「洗血喉」(Tunneled Cuffed Hemodialysis Catheter)。喉管會從患者的頸靜脈伸延到中央靜脈內，成為與洗血機之間的通道。洗血喉可即時使用，不過感染及引致中央血管收窄風險較高。

作者為血管外科專科醫生
am730

14/11/2025

Filter in IVC to prevent clots traveling to the lung
下腔靜脈(IVC) 過濾器，防止血塊進入肺部