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After Swan developed the initial balloon tip, Ganz used Fronek's idea and added a small thermistor (temperature probe) about 3 cm behind the tip. 10 ml of saline (0.9% NaCl) under 10 °C or room temperature (not as accurate) is injected into an opening in the right atrium. As this cooler fluid passes the tip thermistor, a very brief drop in the ...
Swan was born on 1 June 1922 in Sligo Ireland. His parents were both physicians, Harold John Swan and Marcella Bertile Swan née Kelly. His mother called him "Jeremy" to limit confusion and the name stuck throughout his life. Swan's early education was at Castle Rock School.
William Ganz (January 7, 1919 – November 10, 2009) was a Slovakia-born American cardiologist who co-invented the pulmonary artery catheter, often referred to as the Swan-Ganz catheter, with Jeremy Swan in 1970. [1] The catheter is used to monitor heart conditions, especially in intensive care units.
Cardiogenic shock is a medical emergency resulting from inadequate blood flow to the body's organs due to the dysfunction of the heart.Signs of inadequate blood flow include low urine production (<30 mL/hour), cool arms and legs, and decreased level of consciousness.
The end diastolic pressure of the right ventricle can measured directly with a Swan-Ganz catheter. For the left ventricle, end diastolic pressure is most commonly estimated by taking the pulmonary wedge pressure, which is approximately equal to the pressure in the left atrium when the lungs are healthy. When the heart is healthy the diastolic ...
As many as two thirds of cancer patients with central lines show evidence of catheter-associated thrombosis. [3] However, most cases (more than 95%) of catheter-associated thrombosis go undetected. [citation needed] Most symptomatic cases are seen with placement of femoral vein catheters (3.4%) or peripherally inserted central catheters (3%). [3]
A summary of the pathophysiology of a type 1 hypersensitivity reaction. Type I hypersensitivity can be further classified into immediate and late-phase reactions. Within minutes of exposure to an antigen, the immediate hypersensitivity occurs, releasing histamines and lipid mediators which are responsible for the initial allergic reaction response.
The main pathophysiology of heart failure is a reduction in the efficiency of the heart muscle, through damage or overloading. As such, it can be caused by a wide number of conditions, including myocardial infarction (in which the heart muscle is starved of oxygen and dies), hypertension (which increases the force of contraction needed to pump blood) and cardiac amyloidosis (in which misfolded ...