Plethysmography Occlusal

Occlusal plethysmography (sublingual)

Plethysmography is an important method for functional diagnostics of the state of peripheral circulation. When analyzing plethysmograms, changes in the amplitude and speed of the pulse wave, systolic and diastolic blood pressure, as well as capillary refill are taken into account.

With sublingual pleismography, an artificial respiratory obstruction of the pulmonary circulation is created in the place where the carotid artery is located. Obstruction occurs due to the pressing of the cricoid cartilage of the larynx to the upper wall of its annular canal with a metal clamp. The study is performed with an intact cervical spine. Methodology

Occlusion plethysmography (abbreviated as PC) is a method for studying venous outflow in muscles and tissues, which measures changes in blood circulation in the human body using special sensors. This method is widely used in medicine to diagnose many diseases and determine their severity.

The PC is based on the interrupt principle

Plethysmography is a procedure that allows you to evaluate the condition of blood vessels and their functioning. It can be performed either in an inpatient setting or on an outpatient basis. In this article we will look at occlusion plethysmography as a method for studying blood vessels.

Occlusion plethysmography is an important method for studying arterial occlusions. It consists of studying the hemodynamics of the artery after interruption of arterial inflow due to obstruction of the brachial or femoral outflow. This limits the possibility of cardiovascular mechanisms that control vascular tone and the rate of blood filling of the arteries.

Studies have shown that in some cases, blocking blood flow preserves arterial tone and suppresses collateral circulation. It was also found that with occlusive plethysmography there is a decrease in pressor pressure.