心臟醫生會客室 | 糖尿藥SGLT2抑制劑及GLP-1促效劑與心臟病 | 主持:心臟科專科羅君健醫生 | 嘉賓:心臟科專科醫生梁世宙醫生
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心臟醫生會客室 | 糖尿藥SGLT2抑制劑及GLP-1促效劑與心臟病 心臟醫生會客室是一個關於心臟疾病的專題節目,以分享心臟疾病的因由和解答觀眾對心臟疾病的疑問為主要。 主持:心臟科專科羅君健醫生 嘉賓:心臟科專科梁世宙醫生 心臟病患者中,許多人同時也患有糖尿病,尤其是二型糖尿病。糖尿病被認為是一個重要的危險因素,可能導致心臟病及心腦血管問題,甚至心臟衰竭。 糖尿病藥物的主要類別包括: 糖尿病藥物種類繁多,包括二甲雙胍(Metformin)、磺脲類藥物(Sulphonylurea)、二肽基肽酶-IV抑制劑(DPP-IV)和噻唑烷二酮(Glitazone)等。這些藥物各有特點。 二甲雙胍(Metformin):降低肝臟葡萄糖產生,增加細胞對胰島素的敏感度,達致控制血糖的功效。但有些患者可能會出現腸胃不適及肚瀉; 磺脲類藥物(Sulphonylurea):促進胰臟分泌胰島素。服藥後長時間未有進食,可能導致低血糖,甚至暈倒及昏迷; 二肽基肽酶-IV抑制劑(DPP-IV):延長腸道激素(incretins)的作用,進食後促進胰島素分泌及減少肝糖的製造,從而控制血糖。嚴重副作用不常見,低血糖風險較少; 噻唑烷二酮(Glitazone):增加細胞對於胰島素的敏感度,從而控制血糖。但對於有水腫或心臟衰竭的患者則不太適合。 病情較為嚴重的二型糖尿病患者服用多種口服血糖藥都未能夠控制血糖,可能需要注射胰島素。每天注射一次至三次不等,且有可能引起低血糖和體重增加。 值得注意的是,雖然這些舊式藥物能降低血糖,但目前尚無大型研究顯示它們能有效減少心臟病的風險。然而醫生治療糖尿病,除了減低血糖高引起的急性併發症外,主要是希望減少病人日後患上腎病、中風和心臟病的風險,從而降低病人因為這些糖尿病併發症的死亡率。 新型糖尿病藥物的優勢: SGLT2抑制劑: 通過腎臟排除多餘的葡萄糖,降低血糖水平,對血壓控制和減輕體重也有一定幫助。 對於同時患有心臟病的二型糖尿病病人,此藥證實能夠減低心臟病的病發率及死亡風險。即使病人未有心臟病,此類藥物也可減少病人日後患有心臟衰竭的作用;對於防止糖尿患者腎功能惡化,也有顯著功效。 GLP-1受體促效劑: 模擬腸道激素(incretins), 進食後促進胰島素分泌控制血糖,另一方面減少食慾及增加進食後的飽腹感覺。所以這類藥物能顯著減少患者的體重,對於肥胖的糖尿病患者尤為重要。 研究亦表明GLP-1受體促效劑能有效降低心血管病和中風的風險。 新型糖尿藥物如SGLT2抑制劑和GLP-1受體促效劑,不僅能控制血糖和改善體重,還能保護心臟及腎臟,對於降低糖尿引起的心臟或心腦血管併發症,以及降低死亡風險有顯著幫助。 故此,醫生選擇藥物治療的時候,很多時會一併考慮病人是否同時患有腎病或心臟病等因素,又或者他們出現此類問題的機會率,從而選擇對病人幫助最大的藥物。 更多有關心臟科的資訊已上載至香港心臟專科中心YouTube Channel,歡迎瀏覽及訂閱頻道: YouTube Channel: @hongkongcardiaccentre #心臟醫生會客室 #心臟病 #關注心臟健康 #心臟疾病 #心臟健康 #心臟科醫生 #香港心臟專科中心 #羅君健醫生 #梁世宙醫生 # 新型糖尿病藥物 對心臟病病人的優勢# 糖尿病藥物 #SGLT2抑制劑 #GLP-1受體促效劑 #新型糖尿病藥物#減少心臟病風險
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