Dextrocardia is believed to occur in approximately 1 in 12,019 people, while 30 of these will have Situs Inversus. Totalis occurs in approximately 1 in 5,000 of Dextrocardia Situs Inversus.
Kartagener’s Syndrome occurs in approximately 1 in 25 of Totalis. This disorder affects the sinus and bronchial cilia causing constant sinus and bronchial symptoms that medication can not rectify. With Kartagener’s both are usually present all year rather than being seasonal.
Although statistically people with Dextrocardia Situs Inversus do not have any medical problems from the disorder, some are prone to a number of bowel, esophagus, bronchial and cardiac problems. Some of these conditions can be life threatening if left unchecked.
ECG leads must be placed in reversed positions on a person with Dextrocardia. In addition, when defibrillating someone with dextrocardia, the pads should be placed in reverse positions. That is, instead of upper right and lower left, pads should be placed upper left and lower right.
"Technical dextrocardia" refers to the apparent presentation of dextrocardia caused usually by inadvertently swapping the limb leads on a 12 lead ECG. Usually this would show as an extreme axis deviation.