インターミッタント・トランスダーマル・ニトログリセリン療法で,胸の痛を治療する. 耐性やリバウンドなしに臨床的に有効です. ミニトランの有効性研究グループ
J O Parker1, M H Amies, R W Hawkinson
1Queen's University, Kingston, Ontario, Canada.
Circulation
|March 1, 1995
まとめ
トランスダーマルのニトログリセリンパッチは,30日間にわたって毎日12時間,抗風性および抗血栓性効果を提供します. この断続的な治療は,窒素耐性やリバウンド効果を引き起こすことなく,運動期間を効果的に延長します.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- 断続的な皮膚経由のニトログリセリン治療は,胸痛の治療に使用されます.
- 以前の研究では,パッチの適用期間中,長時間の運動期間を明確に記録できませんでした.
- 耐性およびリバウンドを含むさまざまなニトログリセリンの用量の有効性および効果の持続期間は,さらなる評価を必要としています.
研究 の 目的:
- 30日間にわたって12時間毎日適用される3回のトランスダーマルのニトログリセリン投与の抗動脈性および抗血栓性効果を評価する.
- 断続的な経皮ニトログリセリン療法による耐性およびリバウンドの発達を評価する.
- 胸痛患者におけるニトログリセリンの効果と作用期間を決定する.
主な方法:
- マルチセンター,ランダム化,ダブルブラインド,プラセボ対照試験が行われました.
- 患者は30日間,毎日12時間,皮膚経由のニトログリセリンパッチまたはプラセボを投与された.
- トレードミルのエクササイズテストは,ベースラインと1,7,15,30日,適用後12時間までに行われました.
主要な成果:
- すべてのニトログリセリン群は,プラセボと比較して,トレッドミルの歩行時間から中等度のアンギナまで12時間までの統計的に有意な増加を示しました.
- STセグメントを1mm抑えるまでの時間などの二次的有効性測定は,主要な発見を裏付けました.
- 30日間の研究期間中に,耐性またはリバウンド現象の証拠は観察されなかった.
結論:
- 断続的な経皮ニトログリセリン治療は,適用後12時間,運動期間を効果的に延長します.
- 抗イシュケミア効果は,治療の30日間を通して維持されます.
- この断続的な投与方式では,有意な窒素耐性またはリバウンドは観察されなかった.
関連する概念動画
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...
Antianginal Drugs: Nitrates and β-Blockers
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...
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...
Drug Delivery: Enteral Route
The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
Drugs in...
Drugs in...
Angina II: Classification
Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
Angina IV: Management
IntroductionThe management of angina requires a comprehensive approach that includes pharmacological therapies, medical procedures, and lifestyle modifications.Pharmacological TherapiesAntiplatelet agents, such as aspirin, clopidogrel, prasugrel, and ticagrelor, play a pivotal role in preventing thrombus formation in patients with angina. These medications inhibit platelet aggregation and reduce the likelihood of myocardial infarction and other cardiovascular events.Anticoagulants, including...
Angina V: Nursing Management
Angina, a symptom of myocardial ischemia, requires a structured nursing management approach to ensure effective care and prevent complications like myocardial infarction. Comprehensive nursing care involves assessing, diagnosing, planning, implementing interventions, and evaluating outcomes, all tailored to the individual patient's needs.Patient AssessmentNursing assessment begins with a detailed subjective evaluation of symptoms, which typically include chest pain or pressure radiating to the...


