ischemia
简明释义
n. （医学）局部缺血
英英释义
Ischemia is a condition characterized by insufficient blood flow to a tissue, resulting in a shortage of oxygen and nutrients needed for cellular metabolism. | 缺血是一种状况，特征是组织的血流不足，导致氧气和营养物质短缺，从而影响细胞代谢所需。 |
单词用法
脑缺血；大脑局部缺血 |
同义词
反义词
| 充血 | 充血可以在炎症反应中发生。 | ||
| 灌注 | 充分的灌注对组织健康至关重要。 |
例句
1.Objective to study the protective effect of captopril on experimental myocardial ischemia in rats.
目的研究卡托普利对实验性大鼠心肌缺血的保护作用。
2.Objective To study the protective effects of PTS on focal cerebral ischemia in rats.
目的探讨三七三醇皂苷对局灶性脑缺血损伤的保护作用。
3.DWI has good sensitivity to acute cerebral ischemia.
DWI对缺血有极好的成像敏感性。
4.Focal ischemia also could raise the neurogenesis in hippocampus dentate gyrus.
局灶性脑缺血后亦可增加海马齿状回内神经发生。
5.It is important to reduce ischemia reperfusion injury.
重要的是要降低缺血再灌注损伤。
6.Of the 7 amputations, 3 were associated with ischemia, 4 with neuropathy, and 1 with neuropathy and ischemia.
在所有7例截肢患者中，3例与缺血有关，4例与神经病变有关，1例有神经病变和缺血。
7.That's the trouble with silent ischemia — there are no symptoms.
这也就是为什么对付隐性缺血更加麻烦——没有任何征兆。
8.It suggests that chronic brain ischemia affects rat spatial learning and memory.
说明慢性脑缺血影响了大鼠的空间学习记忆。
9.The surgeon explained that ischemia 缺血 occurs when blood flow is restricted to a part of the body.
外科医生解释说，缺血发生在身体某部分的血流受到限制时。
10.Patients with peripheral artery disease often experience ischemia 缺血 in their limbs.
患有外周动脉疾病的患者通常会在四肢感到缺血。
11.Doctors monitored the brain for signs of ischemia 缺血 during the stroke evaluation.
医生在中风评估期间监测大脑是否有缺血的迹象。
12.The patient was diagnosed with ischemia 缺血 in the heart after experiencing chest pain.
患者在经历胸痛后被诊断为心脏缺血。
13.Chronic ischemia 缺血 can lead to serious complications if not treated promptly.
如果不及时治疗，慢性缺血可能会导致严重并发症。
作文
Ischemia is a medical term that refers to the insufficient blood supply to a particular organ or tissue in the body. This condition can lead to serious health complications if not addressed promptly. The most common form of ischemia (缺血) occurs in the heart, known as myocardial ischemia (心肌缺血), which can result in chest pain or even a heart attack. Understanding ischemia (缺血) is crucial for both medical professionals and patients alike, as it can significantly affect one’s quality of life and overall health.The causes of ischemia (缺血) can vary widely. In many cases, it is due to the narrowing of blood vessels, often caused by atherosclerosis, where fatty deposits build up on the artery walls. Other factors such as blood clots, embolisms, or even severe anemia can contribute to this condition. For instance, in peripheral artery disease, ischemia (缺血) may occur in the limbs, leading to pain during physical activities, known as claudication.Symptoms of ischemia (缺血) depend on the area affected. In the heart, individuals may experience angina, which is characterized by discomfort or pressure in the chest. If the brain is affected, it can lead to transient ischemic attacks (TIAs), often referred to as 'mini-strokes,' which present with sudden weakness, confusion, or difficulty speaking. Recognizing these symptoms is vital for timely intervention.Diagnosis of ischemia (缺血) typically involves a combination of physical examinations, patient history, and diagnostic tests. Healthcare providers may utilize imaging techniques such as angiography, ultrasound, or MRI to assess blood flow and identify blockages. Blood tests may also be conducted to check for markers indicating heart damage or inflammation.Treatment options for ischemia (缺血) largely depend on its severity and underlying causes. Lifestyle changes, such as adopting a healthier diet, quitting smoking, and increasing physical activity, are often recommended to improve overall cardiovascular health. Medications like antiplatelet agents or statins may also be prescribed to manage symptoms and reduce risks. In more severe cases, surgical interventions such as angioplasty or bypass surgery might be necessary to restore adequate blood flow.Prevention plays a key role in managing ischemia (缺血). Regular health screenings can help identify risk factors early on. Individuals with a family history of heart disease, high cholesterol, or hypertension should be particularly vigilant. Maintaining a balanced diet rich in fruits, vegetables, whole grains, and lean proteins can contribute to better vascular health and reduce the likelihood of developing ischemia (缺血).In conclusion, understanding ischemia (缺血) is essential for recognizing its potential impact on health. Awareness of its causes, symptoms, diagnosis, treatment, and prevention strategies can empower individuals to take proactive steps towards better health. By prioritizing cardiovascular wellness and seeking medical advice when necessary, one can significantly mitigate the risks associated with ischemia (缺血) and lead a healthier, more fulfilling life.
