Search Engines & Resources for Medical Transcription
MT911 - Your Transcription Helpline Search Engines & Resources for Medical Transcription
Subscribe to
Email Updates
Name:
Email:
Search:
|

Cardiology Related Terms

- O -

  • Obtuse marginal

  • Branches of the circumflex coronary artery.

  • Occlusion / Arterial Occlusion

  • A blockage or a closure of a passageway or vessel. In arterial occlusion, it is the blockage or closure of an artery.

  • Off-Pump Surgery (BEATING HEART SURGERY)

  • A coronary artery bypass grafting surgery that is done without the use of the heart-lung machine (known as the 'pump'). In off-pump, or beating heart surgery, the patient�s heart is allowed to continue beating while the coronary artery bypass grafts are being placed on the patient�s coronary arteries. This is in contrast to traditional 'on-pump' heart operation, which is done with the support of a heart-lung machine. In an on-pump heart surgery, a heart-lung machine does the work of the heart and lungs during the phase of the operation when the heart is being repaired. The heart is normally stopped during these operations. In general, only coronary artery bypass operations are done without heart-lung machine support, while most other heart conditions require heart-lung support in order for the surgery to be performed.

  • OHDC

  • Oxyhemoblobin disassociation curve.

  • Open Heart Surgery

  • Most people think that any surgery being done on the heart is 'open heart surgery', but technically only heart operations, in which a part of the heart is opened, is called 'open heart surgery'. All open heart surgeries require the use of the heart-lung machine to support the patient while the heart is being operated upon. Examples of open heart surgeries include valve repair or replacement, closure of congenital defects, repair of ascending aortic dissections and aneurysms, and repair of some complications of heart attack. Coronary artery bypass grafting surgery is technically not an 'open heart operation' since only the arteries, which lie on the surface of the heart, are operated on, while the heart cavities are not opened.

  • Osmosis

  • The passage of pure solvent from a solution of lesser to one of greater solute concentration, when the two solutions are separated by a membrane which selectively prevents the passage of solute molecules, but is permeable to the solvent.

  • Osmotic pressure

  • The negative pressure created by a dissolved non-diffusable substance across a membrane permeable to solvent but not to the solute.

  • Oxygenator

  • An artificial device that functions like the lung to exchange oxygen and carbon dioxide with the blood.


Tell a Friend

Cardio Terms


Home | Search | Sitemap | Tell a Friend | Contact Us | Disclaimer
MTHelpLine | MTSetup | MTDictionary | MTSamples | MedicalTranscriptionSamples
Designed for IE.
Best viewed in 1024 x 768