Rewarming Shock

	Rewarming Shock Rewarming shock (also known as rewarming collapse) has been described as a drop in blood pressure following the warming of a person who is very cold. The real cause of this rewarming shock is unknown. There was a theoretical concern that external rewarming rather than internal rewarming may increase the risk. These concerns were partly believed to be due to afterdrop Afterdrop refers to the continued cooling of core body temperature during the initial stages of rewarming from hypothermia. This phenomenon is primarily attributed to peripheral vasodilatation, a process in which blood vessels near the skin's s ..., a situation detected during laboratory experiments where there is a continued decrease in core temperature after rewarming has been started. Recent studies have not supported these concerns, and problems are not found with active external rewarming. References Medical emergencies {{med-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Blood Pressure Blood pressure (BP) is the pressure of Circulatory system, circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term "blood pressure" refers to the pressure in a brachial artery, where it is most commonly measured. Blood pressure is usually expressed in terms of the systolic pressure (maximum pressure during one Cardiac cycle, heartbeat) over diastolic pressure (minimum pressure between two heartbeats) in the cardiac cycle. It is measured in Millimetre of mercury, millimetres of mercury (mmHg) above the surrounding atmospheric pressure, or in Pascal (unit), kilopascals (kPa). The difference between the systolic and diastolic pressures is known as pulse pressure, while the average pressure during a cardiac cycle is known as mean arterial pressure. Blood pressure is one of the vital signs—together with respiratory rate, heart rate, Oxygen saturation (me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Hypothermia Hypothermia is defined as a body core temperature below in humans. Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases. In severe hypothermia, there may be hallucinations and paradoxical undressing, in which a person removes their clothing, as well as an increased risk of the heart stopping. Hypothermia has two main types of causes. It classically occurs from exposure to cold weather and cold water immersion. It may also occur from any condition that decreases heat production or increases heat loss. Commonly, this includes alcohol intoxication but may also include low blood sugar, anorexia and advanced age. Body temperature is usually maintained near a constant level of through thermoregulation. Efforts to increase body temperature involve shivering, increased voluntary activity, and putting on warmer clothing. Hypothermia may be diagnosed based on either a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Afterdrop Afterdrop refers to the continued cooling of core body temperature during the initial stages of rewarming from hypothermia. This phenomenon is primarily attributed to peripheral vasodilatation, a process in which blood vessels near the skin's surface dilate, allowing cold blood from the extremities to return to the core. This return of cold blood results in a further decrease in deep body temperature. Another explanation involves heat conduction, where the body cools from the outside in, creating a temperature gradient from the warm core to the cool periphery. This gradient allows the continued transfer of heat from the core to peripheral tissues during rewarming. In severe cases, afterdrop can lead to post-rescue collapse, where patients may experience cardiovascular instability or cardiac arrest. However, the clinical significance of afterdrop varies, as it does not always result in severe outcomes for every individual undergoing rewarming from hypothermia. Afterdrop is more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]