palpitation An uncomfortable sensation felt in the chest during a premature contraction of the heart. It is often described as a “thump.” Treatment: None, unless it becomes an arrhythmia. tachycardic ( TAK -ih-KAR-dik) tachy- fast card/i- heart -ic pertaining to tachycardia ( TAK -ih-KAR-dee-ah) tachy- fast card/i- heart -ia condition; state; thing trigeminy (try-JEM-ih-nee) The prefix tri- means three . extrasystole ( EKS -trah-SIS-toh-lee) extra- outside -systole contraction The ending -systole contains the combining form systol/o- and the one-letter suffix -e . bigeminy (by-JEM-ih-nee) The prefix bi- means two . supraventricular ( SOO -prah-ven-TRIH-kyoo-lar) supra- above ventricul/o- chamber that is filled; ventricle -ar pertaining to palpitation ( PAL -pih-TAY-shun) palpit/o- throb -ation being; having; process asystole (aa-SIS-toh-lee) a- away from; without -systole contraction paroxysmal ( PAIR -awk-SIZ-mal) WORD ALERT Sound-Alike Words palpation (noun) A process of touching and feeling. Example : Palpation allowed the physician to identify a tumor in the abdomen . palpitation (noun) Being or having (the heart) throb Example : Her occasional palpitations concerned the patient until the physician reassured her . contraction (con-TRAK-shun) contract/o- pull together -ion action; condition
224 Chapter 5 Cardiology Blood Vessels Word or Phrase Description Pronunciation/Word Parts aneurysm Area of dilation and weakness in the wall of an artery (see Figure 5-17 ■ ). This can be congenital or where arteriosclerosis has damaged the artery. With each heartbeat, the weakened artery wall balloons outward. An aneurysm can rupture without warning. A dissecting aneurysm is one that enlarges by tunneling between the layers of the artery wall. Treatment: Placement of a metal clip on the neck (narrowest part) of a small aneurysmal dilation to occlude the blood flow. Surgical removal of a large aneurysm and replacement with a synthetic tubular graft. FIGURE 5-17 ■ Aneurysm. (a) A normal abdominal aorta, a large abdominal aortic aneurysm, and a dissecting aneurysm that has tunneled between and separated the atherosclerotic plaque from the artery wall. (b) This x-ray image is an arteriogram. Contrast dye shows a large dissecting abdominal aortic aneurysm above the bifurcation where the right and left iliac arteries begin in the pelvic area. Source : Pearson Education; Zephyr/Science Photo Library/Getty Images NORMAL ABDOMINAL AORTA DISSECTING ANEURYSM ABDOMINAL AORTIC ANEURYSM Renal arteries Bifurcation Iliac arteries Atherosclerotic plaque Aneurysm Dissection dissecting (dy-SEK-ting) dissect/o- cut apart -ing doing aneurysmal ( AN -yoor-IZ-mal) aneurysm/o- aneurysm; dilation -al pertaining to aneurysm (AN-yoor-izm)
Chapter 5 Cardiology 225 Word or Phrase Description Pronunciation/Word Parts arteriosclerosis Progressive degenerative changes that produce a narrowed, hardened artery. The process begins with a small tear in the endothelium caused by chronic hypertension. Then low-density lipoproteins (LDLs) in the blood deposit cholesterol and form an atheroma or atheromatous plaque
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- Summer '19
- Adam Thompson
- right ventricle, left ventricle, right atrium, left atrium, ascending aorta , Paramedic Cardiology