As the head biokineticist of executive health and wellness in a corporate company for over three years, Daniel has had the privilege of perfecting the art of the resting and stress ECG. Having performed over 3000 successful stress and resting ECGs, Daniel is aware of the complications and potential risks involved in testing and rehabilitating cardiac patients.
In addition to the ECG experience and qualifications received in his biokinetics degree Daniel has continued to investigate the ECG and up-skill his knowledge through short courses and is a holder of the prestigious certificate in Electrocardiography and pharmacology from the American heart association.
Electrocardiography (ECG) is the process of recording the electrical activity of the heart either at rest, during stress or on recovery using electrodes placed on the skin in a certain order on specific areas of the chest and abdomen. These electrodes detect the electrical changes on the skin that arise from the cardiac muscle’s electrophysiologic pattern of depolarizing and repolarizing during each heartbeat.
The overall goal of performing electrocardiography is to obtain information about the structure, position and function of the heart. An ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart’s muscle tissue or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers. Medical uses for this information are varied and generally relate to having a need for knowledge of the structure and/or function. Some indications for performing electrocardiography include but are not limited to:
- Suspected myocardial infarction (heart attack) or new chest pain
- Suspected pulmonary embolism or new shortness of breath
- A third heart sound, fourth heart sound, a cardiac murmur or other findings to suggest structural heart disease
- Perceived cardiac dysrhythmias either by pulse or palpitations
- Monitoring of known cardiac dysrhythmias
- Fainting or collapse
- Monitoring the effects of a heart medication (e.g. drug-induced QT prolongation)
- Assessing severity of electrolyte abnormalities, such as hyperkalemia
- Hypertrophic cardiomyopathy screening in adolescents as part of a sports physical out of concern for sudden cardiac death (varies by country)
- Perioperative monitoring in which any form of anesthesia is involved (e.g. monitored anesthesia care, general anesthesia); typically both intraoperative and postoperative
- As a part of a pre-operative assessment some time before a surgical procedure (especially for those with known cardiovascular disease or who are undergoing invasive or cardiac, vascular or pulmonary procedures, or who will receive general anesthesia)
- Cardiac stress testing