Cardiopulmonary bypass
Read the topic background here, then explore the labeled visual and structured learning explanations on this page.
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An introductory overview for this topic. The article introduction is reproduced here, so you do not need to leave MedAtlas to read it. It may not match the latest official medical guidance.
Cardiopulmonary bypass (CPB) or heart-lung machine, also called the pump or CPB pump, is a machine, operated by a cardiac perfusionist, that temporarily takes over the function of the heart and lungs during open-heart surgery by maintaining the circulation of blood and oxygen throughout the body. As such it is an extracorporeal device.
The machine mechanically circulates and oxygenates blood throughout the patient's body while bypassing the heart and lungs allowing the surgeon to work in a bloodless surgical field.
How this connects to Cardiothoracic and Vascular Surgery
Cardiovascular function couples electrical activation, muscle contraction, chamber filling and vascular resistance to tissue perfusion. Structural, rhythm or vascular disorders can change symptoms and measurements in different ways; evaluation integrates hemodynamics, anatomy, time course and objective evidence.
Text credit: Wikipedia contributors, “Cardiopulmonary bypass”, original article · authors & revision history · CC BY-SA 4.0. Unmodified opening extract, accessed 24 September 2026. This Wikipedia-derived section is provided under CC BY-SA 4.0; the independent MedAtlas notes and design are separate works.
Cardiopulmonary bypass · visual study map
Scalable vector illustration. Labeled conceptual map, not a precise anatomical, histological or diagnostic image.The wording in this learning map is adapted from the attributed Wikipedia background section below (CC BY-SA 4.0).
What the underlying subject studies
At postgraduate and higher-specialty level, begin with normal anatomy and physiology of the relevant organ system, then compare distinct disease mechanisms, their evidence base and the limitations of available investigations.
How mechanisms and evidence connect
Advanced study requires evidence appraisal, multidisciplinary interpretation and a clear distinction between established facts, hypotheses and research findings. Procedural, diagnostic and prescribing skills must be learned under an accredited program.
How to develop a sound explanation
Identify the scope of this topic within the named specialty, connect it to the applicable patient population and formulate a structured question that can be answered using current specialty literature and supervised teaching.
References and verification (optional)
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