What is Bradycardia?

Bradycardia is when there is a significant decrease in heart rate, whose normal parameters at rest are 60 to 100 beats per minute, so when this abnormality occurs, the heart rate is below 60 beats per minute.

Although in some cases bradycardia does not show any symptoms or is not serious, in others it can become a serious condition by preventing sufficient pumping of oxygenated blood to the body.

The treatment indicated in severe bradycardia is the placement of a pacemaker that controls the rhythm and rate that the heart requires to function properly.

Origin of bradycardia:

There are several causes for the appearance of this condition, including:

Congenital heart defect.
Heart infections.
Complications after heart surgery.
Obstructive sleep apnea.
Lupus or rheumatic fever.
Reaction to certain drugs.
Cardiac degeneration due to aging.
Heart injuries from disease or seizures.
Hypothyroidism
Shortage of minerals such as calcium and potassium in the blood.

Signs and symptoms Bradycardia

Mental disorder.
Memory loss.
Loss of consciousness.
Dizziness and confusion.
Tiredness and weakness.
Respiratory problems.
Chest pain.

Potential risks:

Old age.
High levels of stress.
High blood pressure.
Smoking.
Alcoholism.
Drug addiction.

A bradycardia that causes severe symptoms can lead to the following complications:

Heart failure.
Heart attack.
Recurrent loss of consciousness.
Death.

Diagnosis and treatment Bradycardia

Once the doctor analyzes your symptoms and medical history, it will perform a physical examination and request studies such as an electrocardiogram, Holter monitor, stress tests, tilt table test, as well as blood tests, among others.

The treatment to be followed will depend on the cause of the condition and the severity of the symptoms. Medications may be prescribed to control symptoms, but if it is not enough, you will require the surgical implantation of a pacemaker.

At the Cardiovascular Center we offer you a wide range of prevention, diagnosis, timely treatment, and follow-up services to take care of you through a comprehensive and multidisciplinary care model. Come to us, we want to hear your heart.

Related centers and departments

Cardiovascular Center
High Specialty Surgery Center
Radiology and Molecular Imaging
Clinical laboratory

Fuentes:

fundaciondelcorazon.com
myhealth.ucsd.edu
msdmanuals.com
mayoclinic.org
texasheart.org
medigraphic.org
Sánchez SS, Echazabal LM, Navarro BAL, et al. Caracterización de los pacientes con bradiarritmias atendidos en el servicio de Cardiología de Cienfuegos (2018-2019). Medisur. 2020;18(6):1110-1121.
Jacobo-Vargas TB, Orozco-Gutiérrez JJ, Rivero-Martínez JA. Bradicardia temprana en pacientes con COVID-19 y triple terapia. Cardiovasc Metab Sci . 2021;32(1):22-31. doi:10.35366/98227.
Medrano PY, Castillo MÁR, Lugo MAM, et al. Alteraciones electrocardiográficas en jóvenes atletas de alto rendimiento. CorSalud. 2019;11(4):296-301.
García-Arreola DAP, Alcántara-Morales MA. Bradicardia en el niño durante anestesia general. Rev Mex Anest. 2015;38(Suppl: 1):107-109.

How can we help you?

The dissemination of the content of this material is for informational purposes only and does not replace, under any circumstance or condition, a consultation with a specialist doctor, for which the ABC Medical Center is not responsible for the different use that may be given to it. If you require more information related to the subject, we suggest you contact the specialist doctor you trust directly.

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Comparison of COVID-19 vaccines

Pfizer-
BioNTech

Pfizer-BioNTech

What is its effectiveness and what does it refer to?

Vaccine type: mRNA
Effectiveness: 95% after the second dose in the prevention of symptomatic COVID-19.

No Does not contain egg, latex, or preservatives.

How many doses are needed?
Two doses are needed, at least 21 days apart (or up to six weeks apart, if necessary).

Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 16 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine such as polyethylene glycol (PEG) or polysorbate.

What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, muscle pain, chills, joint pain, fever, nausea, malaise, and swollen lymph nodes.

How long will it take for me to be protected and what does it protect me from?
After 14 days of having the complete scheme (after the administration of the 2nd dose), the protection period is still under study. It protects us from serious COVID-19 or requiring hospitalization.

Moderna

What is its effectiveness and what does it refer to?

Vaccine type: mRNA
Effectiveness: 94.5% after the second dose in the prevention of symptomatic COVID-19.

Does not contain egg, latex, or preservatives.

How many doses are needed?
Two doses are needed, at least 28 days apart (or up to six weeks apart, if necessary).

Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 18 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine.

What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, muscle pain, chills, joint pain, fever, nausea, and swollen lymph nodes in the arm in which you received the injection.

Janssen/
Johnson
& Johnson

Janssen/ Johnson & Johnson

What is its effectiveness and what does it refer to?

Vector-based vaccine.
Effectiveness: 72.0% in the prevention of symptomatic COVID-19.
85% in the prevention of severe COVID-19.

Does not contain egg, latex, or preservatives./strong>

How many doses are needed?
Only one dose in needed.

What are the possible side effects of the vaccine?
Pain where the injection was given, headache, fatigue, muscle pain, chills, fever, and nausea.

How long will it take for me to be protected and what does it protect me from?
After 28 days of having the complete scheme (the last dose applied), the protection period is still under study. It protects us from 85% serious COVID-19 or requiring hospitalization.

AstraZeneca
and
Oxford
University

AstraZeneca and Oxford University

What is its effectiveness and what does it refer to?

Adenovirus vector-based vaccine.
Effectiveness: 82% after the second dose in the prevention of symptomatic COVID-19.

How many doses are needed?
Two doses are needed, at least 56 days apart (or up to 84 days apart, if necessary).

What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, myalgia, arthralgia, and fever, which were mild to moderate in intensity and disappeared within 48 hours of vaccination.

Sputnik V

What is its effectiveness and what does it refer to?

Adenovirus vector-based vaccine.
Effectiveness: 92% after the second dose in the prevention of symptomatic COVID-19.

How many doses are needed?
Two doses are needed, at least 21 days apart (or up to six weeks apart, if necessary).

What is Bradycardia?

Signs and symptoms Bradycardia

Diagnosis and treatment Bradycardia

Related centers and departments

Fuentes:

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Specialist in Bradycardia