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Antihypertensive Drugs: Vasodilators01:23

Antihypertensive Drugs: Vasodilators

Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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Antianginal Drugs: Calcium Channel Blockers and Ranolazine

Angina pectoris, a primary symptom of ischemic heart disease, requires careful pharmacological interventions. In this context, calcium channel blockers (CCBs) and ranolazine have emerged as crucial pharmacotherapeutic agents, providing deep insights into the complexities of angina management.
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Antianginal Drugs: Nitrates and β-Blockers01:16

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In cardiovascular health, antianginal drugs combat angina pectoris — a condition marked by chest pain owing to diminished blood flow to the heart.
Organic nitrates,  such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow. Administered...
Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers01:22

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Class I antiarrhythmic drugs are used to treat various types of arrhythmias or irregular heart rhythms. These drugs block the sodium (Na+) channels in the cardiac cells, thereby affecting the movement of electrical impulses across the heart. Class I antiarrhythmic drugs are divided into three subgroups: Class IA, Class IB, and Class IC, each with distinct mechanisms of action and effects on the heart.
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酸能降低心肌复血管化后心房动的发生率吗? :一个试点研究.

Raif Cavolli1, Kaan Kaya, Alp Aslan

  • 1Department of Cardiovascular Surgery, Umut Heart Hospital, GMK Bulvari, Ozveren Sok. No. 17, Maltepe, 06570, Ankara, Turkey. raif.cavolli@gmail.com

Circulation
|July 16, 2008
PubMed
概括
此摘要是机器生成的。

酸 (SNP) 显著降低了冠状动脉旁路移植 (CABG) 后心房动 (AF) 的发生率和持续时间. 这种氧化供体在预防手术后肌肉功能障碍,一种常见的并发症方面表现有前途.

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科学领域:

  • 心血管外科心血管外科
  • 心脏麻醉学心脏麻醉学
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 手术后心房动 (AF) 是冠状动脉旁路移植 (CABG) 后的常见并发症.
  • 在CABG后的AF与患者发病率和死亡率的增加有关.
  • 氧化 (NO) 捐赠者正在研究其对AF的潜在预防作用.

研究的目的:

  • 为了评估酸 (SNP) 的有效性,一个NO的捐赠者,在预防CABG后的AF.
  • 评估SNP对术后AF相关的发病率,持续时间和炎症标志物的影响.

主要方法:

  • 一个前性,随机的,安慰剂对照试验,涉及100名接受选择性CABG的患者.
  • 在重新升温期间,患者接受了SNP (0.5微克 x 千克(-1) x 分钟(-1)) 或安慰剂.
  • 手术后的AF通过远程测量进行监测,并测量高灵敏度C反应蛋白 (hs-CRP) 水平.

主要成果:

  • 与安慰剂组 (27%) (P=0.005) 相比,SNP组的AF发病率显著较低 (12%) .
  • 在SNP组中,AF发作的持续时间明显较短 (5.33±1.86小时) 与对照组 (7.55±1.94小时) 相比 (P=0.023).
  • 在对照组中,术后hs-CRP水平升高,AF延长了住院时间.

结论:

  • 酸尼托普鲁西德的使用显著降低了CABG后手术后心房动的发生率和持续时间.
  • 在心脏手术患者中,SNP可以作为AF预防的潜在治疗剂.
  • 需要进一步的研究,以充分阐明SNP.的抗AF特性.