Ms Ji Fengxia announces the clinical observation results which find that the overall efficacy rate of the Chinese medicine treatment of chronic cough is 80%.


吉鳳霞醫師的一項臨床觀察,顯示中醫治療慢性咳嗽的總有效率達八成。

Traditional Chinese medicine for the treatment of chronic cough.


常用於治療慢性咳嗽的中藥。

Date: 22 Nov 2016 (Tuesday)

Archive

HKBU clinical study finds an overall efficacy rate of 80% in Chinese medicine treatment of chronic cough

浸大臨床觀察顯示中醫治療慢性咳嗽總有效率達八成

The School of Chinese Medicine (SCM) of HKBU recently conducted a clinical study on Chinese medicine treatment of chronic cough. The results indicated that the overall efficacy rate of the Chinese medicine treatment for this disease is 80%.

The basic definition of a chronic cough is coughing that lasts for eight weeks or more, with persistent coughing as the major symptom. Chronic cough is a common respiratory disease in Hong Kong, and with its high incidence in recent years. Patients who cough frequently find it difficult to suppress dry coughing. Recurrence of this condition is one that is commonly observed. It can seriously affect the quality of life of patients with an impact on both their physical and mental health. 

Ms Ji Fengxia, Senior Lecturer of the SCM Clinical Division at HKBU, conducted a clinical observation of 130 patients who attended HKBU Chinese medicine clinics for chronic cough treatment from January 2012 to March 2016. Of them, 32 were male and 98 were female. A higher occurrence rate of this disease was observed in patients aged 40 or above.

The observation indicated that of the 130 patients receiving Chinese medicine treatment for chronic cough, 39 of them (30%) recovered, while an improvement was observed in 66 patients (50.77%). In general, the study showed an overall efficacy rate of 80.77% for the treatment.

It was commonly observed that over 70% of the patients, chronic cough was initiated by four common types of syndrome, namely upper respiratory cough syndrome, cough-variant asthma, eosinophilic bronchitis and gastroesophageal reflux cough. Ms Ji explained that although there were multiple factors inducing chronic cough, common syndromes included a highly sensitive air passage usually with a dry and itchy nasal passage, high coughing frequency with or without phlegm, and coughing that is easily induced or aggravated by cold air, gaseous and other inducers. Chronic cough is not usually related to infections, while the therapeutic effects of general expectorants and antitussives, as well as treatment by antibiotics, were not satisfactory.

Categories of chronic cough are “prolonged cough” and “intractable cough”. Regarding the syndrome differentiation, it was demonstrated that the largest number of patients, a total of 61 (46.92%), were diagnosed with “yin and qi deficiencies”, while the second largest, amounting to 29 patients (22.31%), were diagnosed with “lung and spleen qi deficiencies”. These 90 patients accounted for 69.23% of the total under observation. The treatment method of invigorating qi and nourishing the yin can have a satisfactory effect in these clinical scenarios.

Ms Ji indicated that the advantages of using Chinese medicine treatment for chronic cough lie in the high degree of personalised and precise diagnosis involved and the treatment methods of syndromes. She also cited the special Chinese medicine prescriptions that use a formula involving multiple steps, many components, and many target effects in order to improve the patient’s bodily constitution. 

Ms Ji added that most of the patients with chronic cough also show a certain level of yin and qi deficiencies, or spleen and lung qi deficiencies. As a result they may feel cold and easily start coughing. She reminded patients that in order to reduce the occurrence of the disease, they should keep their bodies warm, avoid over-exertion, do more exercise, improve physical fitness and modify their diet.

浸大中醫藥學院最近完成了一項慢性咳嗽的臨床觀察,結果顯示中醫治療慢性咳嗽的總有效率達八成。

慢性咳嗽是指咳嗽連續八星期以上,以咳嗽爲主要症狀,是香港常見的呼吸系統疾病,發病率近年有上升趨勢。患者咳嗽頻繁,咳痰不爽,難以抑制的刺激性乾咳,久久不癒,對患者的身心健康造成很大困擾,嚴重影響工作和生活質素。
   
中醫藥學院臨床部高級講師吉鳳霞醫師早前分析了130名於2012年1月至2016年3月期間,前往浸大中醫藥診所就診的慢性咳嗽患者病例,男女比例分別佔32人和98人,當中40歲以上患者的發病率較高。在接受中醫治療後,39人 (30%) 治癒;66人 (50.77%) 情況好轉。綜合觀察結果所得,中醫治療慢性咳嗽的整體臨床總有效率為80.77%。

常見的慢性咳嗽一般分為上氣道咳嗽綜合症、咳嗽變異性哮喘、嗜酸粒細胞性支氣管炎、胃食管反流性咳嗽等,這四類疾病佔慢性咳嗽的整體病例約為7成以上。吉鳳霞醫師解釋,慢性咳嗽的病因雖複雜多樣,涉及面廣,但其共同點主要由於氣道敏感性增高,常見喉嚨氣管乾癢或氣管收窄,咳嗽頻作,無痰或痰少。遇到冷風、異味氣體等因素,易誘發或加重咳嗽。這類咳嗽大多與感染無關,一般化痰止咳藥和抗生素的治療效果均不大理想。

慢性咳嗽屬於中醫「久咳」、「頑固性咳嗽」的範疇,觀察結果顯示,在慢性咳嗽的證候分佈中,以氣陰兩虛型為最多 (61例),佔病例總數的46.92%;其次是肺脾氣虛型 (29例),佔總數的22.31%。兩個證型共計90例,佔慢性咳嗽病例的69.23%,在臨床採用補氣滋陰的治療方法,可取得滿意效果。

吉鳳霞醫師表示,中醫治療慢性咳嗽的優勢,在於其個體化、精準化的辨證論治,獨特的處方用藥,通過多環節、多成份、多靶點的複方發揮效用,對改善患者體質及舒緩慢性咳嗽均有一定療效。
       
吉醫師提醒,慢性咳嗽患者大多氣陰兩虛或肺脾氣虛,故易因感冒引發咳嗽。患者日常應注意保暖防寒,同時要避免過度勞累,多做運動,增強體質及注意飲食調理,以減低病發的誘因。