Mobitz I Second Degree AV Block: Implications for Heart Health

Electrocardiogram Interpretation

Hello, Doctor He.
I would like to ask again, what does the presence of Mobitz I Second Degree AV Block in an electrocardiogram report indicate about the heart? Additionally, aside from age-related degeneration in elderly patients, if this condition is observed in younger individuals, does it suggest that there is an underlying issue with the heart itself? Thank you.

Kaili, 20~29 year old female. Ask Date: 2022/12/29

Dr. He Dongjin reply Cardiology

Hello, Mobitz type I second-degree AV block is quite rare at this age.
I haven't seen the ECG, so I wouldn't want to make any statements without it.
I still recommend returning for a follow-up and discussing it with your attending physician.
Take care from Changhua Hospital.

Reply Date: 2022/12/29

More Info

Mobitz I Second Degree AV Block, also known as Wenckebach block, is a type of heart block characterized by a progressive lengthening of the PR interval on an electrocardiogram (ECG) until a beat is dropped. This condition can indicate underlying issues with the heart's electrical conduction system, but its implications can vary significantly based on the patient's age, overall health, and the presence of other symptoms.

In older adults, Mobitz I is often associated with age-related degeneration of the conduction system, which can be a benign finding, especially if the individual is asymptomatic. However, in younger patients, the presence of Mobitz I can raise concerns about potential underlying heart problems. While it may still be benign in some cases, it could also indicate issues such as structural heart disease, ischemic heart disease, or other conditions affecting the heart's electrical pathways.

For younger individuals, it is essential to consider the context in which Mobitz I occurs. If there are no accompanying symptoms such as syncope (fainting), dizziness, or significant bradycardia (abnormally slow heart rate), the condition may not be of immediate concern. However, if symptoms are present or if there is a history of heart disease in the family, further evaluation is warranted. This may include additional ECG monitoring, echocardiography, or even electrophysiological studies to assess the conduction system's integrity.

In summary, while Mobitz I Second Degree AV Block can be a benign finding, especially in older adults, its presence in younger individuals should prompt a thorough evaluation to rule out any significant underlying heart conditions. It is crucial for patients to discuss their specific situation with a healthcare provider, who can interpret the findings in the context of their overall health and symptoms. Regular follow-ups and monitoring may be necessary to ensure that any potential issues are identified and managed appropriately.

Similar Q&A

Understanding Second-Degree AV Block: Symptoms, Risks, and Management

In 2004, during my military service medical examination, I was diagnosed with second-degree atrioventricular (AV) block, Mobitz type II, intermittently. At the end of 2005, I underwent a cardiac catheterization, and the doctor stated that my heart was very healthy with no issues,...

Dr. Lin Yongguo reply Cardiology
To KEN / 25 / 0:1. Second-degree atrioventricular block, Mobitz type II, intermittent. A cardiac catheterization was performed at the end of 1994, and the doctor stated that the heart is healthy with no issues, indicating a conduction disturbance. Generally speaking, Mobitz type ...

Understanding Mobitz Type II Second-Degree AV Block: Should You Be Concerned?

Hello Doctor: I underwent a 24-hour Holter monitor due to a health check, which revealed Mobitz type II second-degree atrioventricular block. However, this was only noted once. Later, I went to another hospital for another 24-hour Holter monitor, and they did not find any evidenc...

Dr. He Dongjin reply Cardiology
I suggest that you have the electrocardiogram copied and consult another cardiologist. If everyone agrees that it is Mobitz type II second-degree atrioventricular block, then you should ask your outpatient physician how to proceed. Based on your description and age, I have doubts...

Understanding Second-Degree AV Block: What You Need to Know

Hello Doctor, I went to the hospital for a military school physical examination three days ago. Yesterday, I received a call from the hospital stating that my electrocardiogram showed abnormalities, and the doctor diagnosed me with second-degree atrioventricular block, Mobitz typ...

Dr. Li Shengkai reply Cardiology
I did not see the electrocardiogram from your physical examination and can only respond based on the text report you provided. According to the current military service physical examination standards, "second-degree atrioventricular block" is classified as a disqualifyi...

Understanding Wenckebach: Insights on Second-Degree AV Block and Symptoms

Hello Doctor: For the past month, I have been feeling a lot of stress and discomfort in my heart. Occasionally, it feels like my heart skips a beat. I went to the hospital for an echocardiogram, and the results showed no issues with my heart, except for a very mild tricuspid valv...

Dr. He Dongjin reply Cardiology
Hello, don't be nervous, everything is fine. Especially at night, the heart is resting and there is no risk of sudden death. Type 2, level 1 really does not require medication and will not worsen. Numbness in the hands and feet is unrelated, so don't worry. Changhua Hos...