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What Does "small Fixed Anteroseptal And Apical Defect" Mean?

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Posted on Tue, 22 Jul 2014
Question: a review of lexiscan and rest nuclear images reveals a small fixed anteroseptal and apical defect. this is most consistent with the underlying intraventricular conduction delay and left bundle branch block. there is no convincing area of ischemia. the gates ejection fraction is 26% with septal dyskinesis consistent with conduction abnormality. I need layman language for this - I sort of know what it means and I will see my doctor, but can you sort of explain it to me with the above language coming from my report I just got.
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Answered by Dr. Karen Steinberg (1 hour later)
Brief Answer:
Heart electrical system defects

Detailed Answer:
Hi, thanks for using Healthcare Magic. Your results indicate a problem with the electrical conduction system of your heart. The electrical system controls the heartbeat and its regularity. If it is abnormal, you might have a variety of rhythm disturbances, depending on the abnormality. Rhythm disturbances can include skipped beats, too rapid or too slow beats, pauses, blocked beats, fibrillations, and such abnormalities. These can reduce the amount of blood the heart is able to pump out. Some can be life-threatening. Some may require a pacemaker or medication to control the irregularity.

Normally the electrical discharge starts from the sinus node, located at the top of the heart in the atrium. The pulse is conducted down to the atrioventricular (AV) node which is located between the upper (atria) and lower (ventricles) chambers of the heart. The AV node moves the pulse into several groups of electrical bundles that control the ventricular beat.

Your results show a defect in the tissue at the wall dividing the heart chambers and at the bottom of your heart. This is causing a delay in the electrical conduction into the ventricles. One or more of the electrical bundles is not conducting at all, and this causes the left bundle branch block. Septal dyskinesis means the wall between the ventricles is not moving properly, which reduces the cardiac output, termed ejection fraction here. Your output is low. The study concludes that these abnormalities are consistent with conduction system defects. They do not report any definite indications of blood flow being reduced to the heart muscle (ischemia) which is what may result in a heart attack (specifically myocardial infarction or MI).

Hope this helps explain things better. If you have further questions, I would be happy to answer them.
Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Raju A.T
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Answered by
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Dr. Karen Steinberg

Internal Medicine Specialist

Practicing since :1981

Answered : 824 Questions

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What Does "small Fixed Anteroseptal And Apical Defect" Mean?

Brief Answer: Heart electrical system defects Detailed Answer: Hi, thanks for using Healthcare Magic. Your results indicate a problem with the electrical conduction system of your heart. The electrical system controls the heartbeat and its regularity. If it is abnormal, you might have a variety of rhythm disturbances, depending on the abnormality. Rhythm disturbances can include skipped beats, too rapid or too slow beats, pauses, blocked beats, fibrillations, and such abnormalities. These can reduce the amount of blood the heart is able to pump out. Some can be life-threatening. Some may require a pacemaker or medication to control the irregularity. Normally the electrical discharge starts from the sinus node, located at the top of the heart in the atrium. The pulse is conducted down to the atrioventricular (AV) node which is located between the upper (atria) and lower (ventricles) chambers of the heart. The AV node moves the pulse into several groups of electrical bundles that control the ventricular beat. Your results show a defect in the tissue at the wall dividing the heart chambers and at the bottom of your heart. This is causing a delay in the electrical conduction into the ventricles. One or more of the electrical bundles is not conducting at all, and this causes the left bundle branch block. Septal dyskinesis means the wall between the ventricles is not moving properly, which reduces the cardiac output, termed ejection fraction here. Your output is low. The study concludes that these abnormalities are consistent with conduction system defects. They do not report any definite indications of blood flow being reduced to the heart muscle (ischemia) which is what may result in a heart attack (specifically myocardial infarction or MI). Hope this helps explain things better. If you have further questions, I would be happy to answer them.