| 词汇 | example_english_ischaemia |
| 释义 | Examples of ischaemiaThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. In preeclampsia, an inadequate placental trophoblast invasion of the maternal uterine spiral arteries results in poor placental perfusion, leading to placental ischaemia. During ischaemia, when oxygen supply is limited, the electron transport chain of the inner mitochondrial membrane becomes highly reduced. When tissues undergo ischaemia followed by the re-establishment of blood flow, leukocytes are key players in causing the resultant tissue injury. Both effects could theoretically contribute to ischaemia-reperfusion type injury of the placenta, but assessing their importance in vivo is complex. There was no clinical evidence of myocardial ischaemia in either case. As yet, there is no treatment for macular ischaemia. The amount of retinal ischaemia that is present will limit the potential treatment benefit. This process, in addition to sustained or episodic hypotension may induce cerebral hypoperfusion, ischaemia and hypoxia. Coronary artery disease can give rise to reversible diastolic dysfunction during periods of acute ischaemia in elderly patients. Increased intracellular calcium is an important early factor in the cell damage seen in cerebral ischaemia. The combination of asphyxia and ischaemia due to hypotension and hypoperfusion results in a decrease of cerebral oxygen consumption and, if sustained, brain damage. Pathophysiology of hypertension during preeclampsia linking placental ischaemia with endothelial dysfunction. The potential antioxidant and neuroprotective properties are offset by the theoretical risk of cerebrovascular ischaemia. Critical limb ischaemia with peripheral neuropathy is a frequent complication in diabetes. Nevertheless, in an attempt to produce pre-eclampsia in animals, investigators have experimentally induced uteroplacental ischaemia in a variety of species. The decision to operate on our patient was helped by the demonstration of myocardial ischaemia on the nuclear study. Concentrations may be maintained or at least recoverable in ischaemia-reperfusion, whereas in hypoxia they may fall precipitously, endangering energy-dependent cellular processes. We chose to construct a 3-5 mm aortopulmonary shun so as to reduce the pulmonary diastolic run-off and protect the myocardium from ischaemia. Previous work suggested that in the white matter glutamate is released in ischaemia by reversed uptake in axons and oligodendrocytes. If the position was not adequate, or if there was electrocardiographic signs of myocardial ischaemia, the balloon was immediately deflated and repositioned. There was also an unsuspected area of old myocardial ischaemia, associated with severe hypoplasia of the circumflex branch of the right-sided coronary artery. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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