• 沒有找到結果。

針刺穴位是一種操作簡便、實用性高、易於掌握、安全可靠、具 有中醫特色的治療方法。針刺調整人體陰陽、氣血,使臟腑安和,氣 血運行暢通,對於邊緣性高血壓的患者其血壓的控制除了透過生活、

飲食等非藥物的控制之外,利用針刺穴位來作調養似乎也是一種可行 的方法。

我們知道血壓跟血液在血管中的阻力以及從血管所能打出之血 量有關,針刺穴位能降血壓可能是降低了一些影響血管阻力的因子,

在針刺的過程中可能促使血管壁的肌肉細胞鬆弛;這可能與神經性因 子有關。換言之,可能是中樞神經系統、大腦、週邊神經系統、血管 之間的交互作用,或者是體內赫爾蒙平衡上的改變所致,譬如:造成 使血管收縮的赫爾蒙減少,而使血管舒張的赫爾蒙增加9 2。針刺穴位 對血壓和心率的調整作用取決於針刺時血壓的高低、針刺的穴位、針 刺的強度、頻率及時間均有影響。

雖然我們的研究只觀察了 23 位原發性高血壓患者的即時降壓效 果,初步的觀察顯示電針和單純穴位針刺均有使心率和血壓即時下降 的情形,有給予 5Hz 低頻電針刺激穴位似乎可以早點呈現下降的趨 勢,但在拔針後 10min,扎針跟有否電針刺激穴道的差異就不大了。

在心血管動力學的分析:電針組在增加體血管順應性以及降低血管阻 力的影響較顯著,而扎針組則在心輸出量及心輸出指數減少方面著墨 較多。電針和針刺穴位在症狀改善問卷方面均優於平躺組。透過這次 即時降壓臨床觀察的體會,我們期望日後能增加樣本數,提高顯著 性。對於病人之評估能增加中醫的辯證論治來分組,依病人體質選取 適當的穴位治療來作比較。另外在電針頻率的設定上也能多作探討。

至於針刺穴位是否對原發性高血壓患者在長期控制血壓方面有幫 助,值得我們日後作更進一步的研究。

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附 錄

附錄一、受試者須知

研究計畫名稱:針刺穴位對原發性高血壓患者即時降壓效果的臨床 觀察。

本研究計畫在探討原發性高血壓患者接受電針或針刺穴位後對心 血管功能及相關症狀改善之情形。? 使研究準確客觀,請詳細閱讀並 遵守以下規定:

一、 測試前一晚暫停服用降血壓藥,並禁止喝酒、抽煙、喝咖啡、

茶及其他含咖啡因之飲料。生活照日常飲食、定時定量、規 律睡眠。

二、 請著輕便服裝接受測試。心情保持親鬆愉快。

三、 測試前一小時請勿進食,並請先上廁所充分排尿。

四、 測試前若受試者有不符合規定,當擇日另外安排再測。

五、 實驗內容依規定在不同日期之相關時段分別接受電針、扎針 以及平躺休息三種不同的測試方法。測試期間以電腦心脈儀 作資料的收集。

六、 測試期間若有任何不適情形發生,如胸悶、胸痛、頭暈、目 眩、反胃、呼吸困難或血壓過高情形發生,應立即通告並停 止測試。

本研究需要你熱心的參與與合作! 非常感謝你的支持!

附錄二、受試者同意書

研究計畫名稱:針刺穴位對原發性高血壓患者即時降壓效果的臨床觀 察。

一、 研究時間自民國九十一年十月一日至九十二年三月三十一日 止

二、 受測者請著輕便服裝照約定時間到研究室接受三次針刺穴位 對心血管動力學之分析,每次測試至少間隔兩天以上。每位受 試者應完成電針、扎針以及平躺休息三種不同測試方式。

三、 本研究需要你充分配合才能順利進行。依實驗研究規定,研 究者有善盡告知研究過程之風險給被研究者之義務,並應盡其 所能去維護受試者之安全與權益,對受試者之任何疑問應詳細 予以答覆。如你同意遵守受試者須知及同意書所列之相關規定 請在下欄簽名

受測者:_____________________(簽名)

說明者:_____________________(簽名) 日 期:民國_____年______月_____日

計畫主持人:洪志鵬醫師 聯絡電話:(04)7256166 轉 1388

英文摘要

The immediate hypotensive effect of acupuncture on essential hypotensive patients

Graduate student:Chih-Peng Hung

Institute of Integration of Chinese and Western Medicine,China Medical College

ABSTRACT

Acupuncture has certain accommodation effects on physiological abnormalities. In order to compare the immediate hypotensive effect with hemodynamic change of low frequency 5 Hz electro-acupuncture, acupuncture and bed rest at bilateral Neiguan(P6) and Zu-San-Li(S36) acupoints, 23 essential hypertensive patients are involved in this study.

Each patient received these 3 different treatments for about 20mins on three individual days. We collect 4 time sections of BP HR and hemodynamic changes, which include data of pre-treatment, treatment for 10min, treatment for 20min, and post-treatment 10min. All of these data were collected by dynapulse. Our result shows: In the groups we find both electro-acupuncture and acupuncture groups could cause hypotensive effect and heart rate decrease (P<0.05), whereas in the bed rest group no such effects were found. The differences between groups are as following: At first, electro-acupuncture group has more apparent heart rate decrease effect on post-acupuncture 10min than bed rest group (P<0.05). The hypotensive effect of systolic pressure at time course of post-acupuncture 20min and 10 min after removing acupuncture needles

in both electro-acupuncture and acupuncture groups are more explicit than the bed rest group (P<0.05). Secondly, in the analysis of hemodynamic change, acupuncture group significant decrease cardiac out and cardiac index after treatment time course; furthermore, electro-acupuncture group is superior in increasing systemic vascular compliance. Lastly, in the post-treatment questionnaire we find both acupuncture and electro-acupuncture group have significant improvement of hypertension associated symptoms (F=10.62,P=0.02). As a result, no significant differences between acupuncture and electro-acupuncture groups were found from the evaluation of heart rate, BP change, post-treatment and the survey result﹒

Keywords : essential hypertension, electro-acupuncture, Neiguan(P6), Zu-San-Li(S36), dynapulse, heart rate, blood pressure, hemodynamic change

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