vulnerable phase

vul·ner·a·ble phase

a period in the cardiac cycle during which an ectopic impulse may lead to repetitive activity such as flutter or fibrillation of the affected chamber.

vul·ner·a·ble phase

(vŭl'nĕr-ă'bĕl fāz)
A period in the cardiac cycle during which an ectopic impulse may lead to repetitive activity such as flutter or fibrillation of the affected chamber.
References in periodicals archive ?
Moreover, anxiety over inadequate provisions for retirement and health care is set to intensify as a rapidly ageing population now enters the most vulnerable phase of its life cycle.
Rizvan Sulejmani believes that the name process has entered its last and most vulnerable phase.
Aa Having crossed the eight-year mark this October, the military operations in Afghanistan are now in a vulnerable phase. This stage is deemed critical for the fate of the protracted engagement.
"This deal provides us with a bedrock Chinese shareholder and enables us to move ahead with the development of both the Mt Cattlin Spodumene and Jiangsu Lithium Carbonate Projects." Mr Tan said that by raising additional equity through a placement Galaxy will minimise the risks during the most vulnerable phase of the project development.
These aliens find out that the so-called Zin temples are actually fortresses where the Zin plan to hide while in a vulnerable phase. In the fortresses, new Zin will be born in order to continue the domination over their servile aliens and the humans.
With Lord Hutton's report on the David Kelly affair still hanging over him, the Prime Minister is entering what could yet be the most vulnerable phase of his premiership.
The team said the trials would test Bloodhound's performance and handling during one of its most vulnerable phases - the point between 400mph and 500mph.