med term ch 10 cardiovascular diagnostics & therapy

blood pressure

abbr BP
measure of the systolic over the diastolic pressure
instrument =
sphygmomanometer

ausculation and percussion

abbr A&P
listening to internal sounds in the body, usually with a
stethoscope
or by tapping (percussing)

angiocardiography

injection of a radiopaque substance during cardiac catheterization for the purpose of imaging the heart and related structures
angi/o = vessel

cardiac catheterization

threading a catheter into the heart to collect diagnostic information about structures in the heart, coronary arteries, and great vessels
also used to aid in treatment of CAD, congenital abnormalities, and heart failure

digital subtraction angiography

abbr DSA
digital imaging process wherein contrast images are used to "subtract" the noncontrast image of surrounding structures, leaving only a clear image of blood vessels

echocardiography

abbr ECHO
use of ultrasonic waves directed through the heart to study the structure and motion of the heart
transesophageal echocardiography
images the heart through a transducer introduced into the esophagus

electrocardiography

abbr ECG, EKG
recording of electrical impulses of the heart as wave deflections of a needle on an instrument called an electrocardiograph
record = electrocardiogram

exercise stress test

abbr EST
imaging of the heart during exercise on a treadmill, with the use of radioactive thallium or technetium sestamibi

Holter monitor

portable electrocardiograph that is worn to record the reaction of the heart to daily activities

magnetic resonance imaging

abbr MRI
computerized imaging that uses radiofrequency pulses in a magnetic field to detect areas of myocardial infarction, stenoses, and areas of blood flow

MUGA scan

Multiple-gated acquisition scan
noninvasive method of imaging a beating heart by tagging RBCs with a radioactive substance
a gamma camera captures the outline of the chambers of the heart as the blood passes through them

myocardial perfusion imaging

use of radionuclide to diagnose CAD, valvular or congenital heart disease, and cardiomyopathy
per = through
-fusion = process of pouring

phlebography

x-ray imaging of a vein after the introduction of a contrast dye

positron emission tomography

abbr PET
computerized nuclear medicine procedure that uses inhaled or injected radioactive substances to help identify how much a patient will benefit from revascularization procedures

radiography

posteroanterior and lateral chest x-rays may be used to evaluate the size and shape of the heart

Swan-Ganz catheter

long, thin cardiac catheter with a tiny balloon at the tip that is fed into the femoral artery near the groin and extended up to the left ventricle
instrument then is used to determine left ventricular function by measuring pulmonary capillary wedge press

cardiac enzymes test

blood test that measures the amount of cardiac enzymes characteristically released during a mycardial infarction
determines the amount of lactate dehydrogenase (LDH) and creatine phosphokinase (CK or CPK) in the blood

lipid profile

blood test to measure the lipids (cholesterol and triglycerides) in the circulating blood

phlebotomy

opening of a vein to withdraw a blood sample
also called
venipuncture

atherectomy

removal of plaque from the coronary artery (or other arteries) through a catheter with a rotating shaver or laser
laser = laser angioplasty

automatic implantable cardioverter-defibrillator

abbr AICD
device that is implanted in the chest to monitor the heartbeat and correct it if needed (speed it up or slow it down)

cardiac defibrillator

either external or implantable device that provides an electronic shock to the heart to restore a natural rhythm

cardiac pacemaker

small, battery-operated device that helps the heart beat in a regular rhythm; can be either internal (permanent) or external (temporary)

cardiopulmonary resuscitation

abbr CPR
manual external cardiac massage and artificial respiration used to restart the heartbeat and breathing of a patient

commissurotomy

surgical division of a fibrous band or ring connecting corresponding parts of a body structure
commonly performed to separate the thickened, adherent leaves of a stenosed mitral valve
comminsur/o = connection

coronary artery bypass graft

abbr CABG
open-heart surgery in which a piece of a blood vessel from another location is grafted onto one of the coronary arteries to reroute blood around a blockage

extracorporeal circulation

abbr ECC
use of a cardiopulmonary machine to do the work of the heart during open-heart procedures

heart transplantation

removal of a diseased heart and transplantation of a donor heart when cardiac disease can no longer be treated by any other means

left ventricular assist device

abbr LVAD
mechanical pump device that assists a patient's weakened heart by pulling blood from the left ventricle into the pump and then ejecting it out into the aorta
LVADs may be used on those patients awaiting a transplant

minimally invasive direct coronary artery bypass

abbr MIDCAB
surgical procedure in which the heart is still beating while a minimal incision is made over the blocked coronary artery and an artery from the chest wall is used as the bypass

percutaneous transluminal coronary angioplasty

abbr PTCA
surgical procedure in which a catheter is threaded into the coronary artery affected by atherosclerotic heart disease
balloon at the tip of the catheter is inflated and deflated to compress the plaque against the wall of the artery and increase

pericardiocentesis

aspiration of fluid from the pericardium to treat cardiac tamponade

port-access coronary artery bypass

abbr PACAB
procedure in which the heart is stopped and bypass surgery is accomplished through small incisions in the chest

radiofrequency catheter ablation

abbr RFCA
destruction of abnormal cardiac electrical pathways causing arrhythmias

transmyocardial revascularization

abbr TMR
procedure used to relieve severe angina in a patient who cannot tolerate a CABG or PTCA
with a laser, a series of holes is made in the heart tissue in the hope of increasing blood flow by stimulating new blood vessels to grow (angiogenesis)

valvuloplasty

repair of a stenosed heart valve with the use of a balloon-tipped catheter
valvul/o = valve

endovenous laser ablation

abbr EVLT
thermal destruction of veins using laser fibers within a vein
used for treatment of varicose veins

hemorrhoidectomy

excision of hemorrhoids

peripherally inserted central catheter

abbr PICC
means of allowing intravenous access for delivery of chemotherapy, antibiotics, IV fluids, and feeding for a prolonged time

phlebectomy

removal of a vein

sclerotherapy

injection of a chemical solution into varicosities to cause inflammation, resulting in obliteration of the lining of the vein
blood flow is then rerouted through adjoining vessels
microsclerotherapy is a treatment to remove spider veins