First degree AV block - Revision history

Rossdonaldson1: /* Evaluation */

2019-03-06T07:31:28Z

Evaluation

← Older revision		Revision as of 07:31, 6 March 2019
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	==Evaluation==		==Evaluation==
	[[FirstAVBlock.jpg\|thumb\|First degree AV block]]		[[File:FirstAVBlock.jpg\|thumb\|First degree AV block]]
	*[[ECG]]		*[[ECG]]
	*Consider rare causes:		*Consider rare causes:

Rossdonaldson1: /* Evaluation */

2019-03-06T07:30:46Z

Evaluation

← Older revision		Revision as of 07:30, 6 March 2019
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	==Evaluation==		==Evaluation==
			[[FirstAVBlock.jpg\|thumb\|First degree AV block]]
	*[[ECG]]		*[[ECG]]
	*Consider rare causes:		*Consider rare causes:

Neil.m.young: Text replacement - "EKG" to "ECG"

2016-11-21T18:35:22Z

Text replacement - "EKG" to "ECG"

← Older revision		Revision as of 18:35, 21 November 2016
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	==Background==		==Background==
	*Also known as first-degree heart block		*Also known as first-degree heart block
	*Defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec (5 small squares on the ~~EKG~~ tracing)		*Defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec (5 small squares on the ECG tracing)
	*Considered “marked” when the PR interval exceeds 300 msec (more than 7 small squares on the ~~EKG~~ tracing)		*Considered “marked” when the PR interval exceeds 300 msec (more than 7 small squares on the ECG tracing)

	==Clinical Features==		==Clinical Features==

Rossdonaldson1: Rossdonaldson1 moved page First Degree AV Block to First degree AV block

2016-11-03T09:28:26Z

Rossdonaldson1 moved page First Degree AV Block to First degree AV block

← Older revision	Revision as of 09:28, 3 November 2016
(No difference)

Rossdonaldson1: /* Background */

2016-11-03T09:28:11Z

Background

← Older revision		Revision as of 09:28, 3 November 2016
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	==Background==		==Background==
	*Also known as first-degree heart block,		*Also known as first-degree heart block
	*Defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec (5 small squares on the EKG tracing)		*Defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec (5 small squares on the EKG tracing)
	*Considered “marked” when the PR interval exceeds 300 msec (more than 7 small squares on the EKG tracing)		*Considered “marked” when the PR interval exceeds 300 msec (more than 7 small squares on the EKG tracing)

Rossdonaldson1 at 09:28, 3 November 2016

2016-11-03T09:28:01Z

← Older revision		Revision as of 09:28, 3 November 2016
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	==Background==		==Background==
			*Also known as first-degree heart block,
	~~First-degree atrioventricular (AV) block, or~~ first-degree heart block, ~~is defined~~ as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec(5 small squares on the ~~ECG~~ tracing)~~. First-degree AV block is considered~~ “marked” when the PR interval exceeds 300 msec(more than 7 small squares on the ~~ECG~~ tracing).		*Defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec (5 small squares on the EKG tracing)
			*Considered “marked” when the PR interval exceeds 300 msec (more than 7 small squares on the EKG tracing)

	==Clinical Features==		==Clinical Features==
	~~Patients with first-degree atrioventricular (AV) block mostly~~ are asymptomatic ~~at rest~~ and ~~it is~~ diagnosed by chance. Exercise may reveal decreased tolerance especially when there is markedly prolonged PR interval and with left ventricular systolic dysfunction~~. It may also be the cause of syncope with transient high-degree AV block.~~		*Vast majority are asymptomatic and diagnosed by chance
			*Exercise may reveal decreased tolerance (especially when there is markedly prolonged PR interval and with left ventricular systolic dysfunction)

	==Differential Diagnosis==		==Differential Diagnosis==
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	==Evaluation==		==Evaluation==
			*[[ECG]]
	~~Although First degree AV block is not very exciting for the emergency Physicians and usually it is left for the cardiologists to sort out as out patient. But getting past history of infections like~~ Lyme's disease ~~or inflammation like~~ Lupus ~~may be fruitful. Also it may prompt people to explore the history further about~~ Myocarditis or Myocardial infarction ~~in the patient.~~		*Consider rare causes:
			**Lyme's disease
			**[[Lupus]]
			**[[Myocarditis]]
			**[[Myocardial infarction]]

	==Management==		==Management==
			*Asymptomatic patients do not require any specific management
	Asymptomatic patients ~~with first degree~~ do not ~~need~~ any specific management ~~and be managed for the other problems that they presented to the emergency department~~ for~~. For~~ patients who have symptoms ~~that can attribute~~ to AV block ~~need careful history and a review by the cardiology.~~		*Consider a cardiology consult for patients who may have symptoms attributable to the block (rare)

	==Disposition==		==Disposition==
			*Outpatient

	==See Also==		==See Also==
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	==External Links==		==External Links==


	==References==		==References==

Rossdonaldson1: Text replacement - "EKG" to "ECG"

2016-11-03T09:26:30Z

Text replacement - "EKG" to "ECG"

← Older revision		Revision as of 09:26, 3 November 2016
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	==Background==		==Background==

	First-degree atrioventricular (AV) block, or first-degree heart block, is defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec(5 small squares on the ~~EKG~~ tracing). First-degree AV block is considered “marked” when the PR interval exceeds 300 msec(more than 7 small squares on the ~~EKG~~ tracing).		First-degree atrioventricular (AV) block, or first-degree heart block, is defined as prolongation of the PR interval on an electrocardiogram (ECG) to more than 200 msec(5 small squares on the ECG tracing). First-degree AV block is considered “marked” when the PR interval exceeds 300 msec(more than 7 small squares on the ECG tracing).

	==Clinical Features==		==Clinical Features==

Teledoc4u: Added material to Management.

2016-10-29T15:59:09Z

Added material to Management.

← Older revision		Revision as of 15:59, 29 October 2016
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	==Management==		==Management==

			Asymptomatic patients with first degree do not need any specific management and be managed for the other problems that they presented to the emergency department for. For patients who have symptoms that can attribute to AV block need careful history and a review by the cardiology.

	==Disposition==		==Disposition==

Teledoc4u: Added material to evaluation regarding First degree AV block.

2016-10-29T15:51:58Z

Added material to evaluation regarding First degree AV block.

← Older revision		Revision as of 15:51, 29 October 2016
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	==Evaluation==		==Evaluation==

			Although First degree AV block is not very exciting for the emergency Physicians and usually it is left for the cardiologists to sort out as out patient. But getting past history of infections like Lyme's disease or inflammation like Lupus may be fruitful. Also it may prompt people to explore the history further about Myocarditis or Myocardial infarction in the patient.

	==Management==		==Management==

Teledoc4u: adding material to clinical features.

2016-10-29T15:45:15Z

adding material to clinical features.

← Older revision		Revision as of 15:45, 29 October 2016
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	==Clinical Features==		==Clinical Features==
			Patients with first-degree atrioventricular (AV) block mostly are asymptomatic at rest and it is diagnosed by chance. Exercise may reveal decreased tolerance especially when there is markedly prolonged PR interval and with left ventricular systolic dysfunction. It may also be the cause of syncope with transient high-degree AV block.

	==Differential Diagnosis==		==Differential Diagnosis==