ピマ・インディアンの死亡率に対する高血圧の影響
M L Sievers1, P H Bennett, J Roumain
1Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, Arizona, USA.
Circulation
|July 7, 1999
まとめ
高血圧は,糖尿病のないピマ・インディアンの心血管疾患による死亡率を大幅に増加させる. 糖尿病患者の場合,高血圧は心臓血管疾患ではなく,糖尿病性腎不全による死を強く予測します.
科学分野:
- 心臓病学 心臓病学
- エンドクリノロジー エンドクリノロジー
- エピデミオロジー エピデミオロジー
背景:
- 5284人のピマ・インディアンの死亡率に対する高血圧の影響を調べた.
- ベースラインまたはフォローアップ中の2型糖尿病患者1698人を含む.
研究 の 目的:
- 2型糖尿病と2型糖尿病のないピマ・インディアンの死亡率に対する高血圧の差異的な影響を調査する.
- 高血圧,心血管疾患,糖尿病性腎不全の死亡率との関係を理解する.
主な方法:
- 予見的なコホート研究で,追跡期間の中央値は12.2年.
- 死亡原因を分析するために,比例リスクモデルを使用した.
- 年齢,性別,BMI,コレステロール,グルコース,タンパク質尿を含む複数の危険因子に調整されています.
主要な成果:
- 高血圧は,非糖尿病患者の心血管疾患による死亡を予測した (DRR=2.8).
- 糖尿病患者の場合,高血圧は糖尿病性腎不全 (DRR=3.5) による死亡を強く予測したが,心血管疾患 (DRR=1.4) は予測できなかった.
- 死者総数:非糖尿病患者で470人,糖尿病患者で488人.
結論:
- 心血管疾患による死亡率に対する高血圧の影響は,糖尿病のピマ・インディアンではより弱い.
- これは,この集団における糖尿病性腎不全の進行に対する高血圧のより大きな影響によるものである.
- 潜在的要因には,糖尿病の早期発症,低喫煙率,好ましい脂質プロフィールなどがある.
関連する概念動画
Factors affecting Blood pressure
Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:
Physiological Factors:
Hypertension and Regulation of Blood Pressure
Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.
Hypertension I: Introduction
Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
Hypertension II: Pathophysiology
Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension III: Clinical Manifestations and Diagnostic Studies
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...

