Cannon a waves: Difference between revisions
(→Causes) |
m (Bot: Adding CME Category::Cardiology) |
||
| (12 intermediate revisions by 2 users not shown) | |||
| Line 3: | Line 3: | ||
{{CMG}} | {{CMG}} | ||
{{SK}} Cannon A waves; Cannon atrial waves; Canon a waves | {{SK}} Cannon A waves; Cannon A wave; Cannon a waves; Cannon a wave; Cannon atrial waves; Canon a waves | ||
==Overview== | ==Overview== | ||
Cannon a waves are waves seen occasionally in the [[jugular vein]] of humans with certain [[cardiac arrhythmias]]. When the [[Atrium (heart)|atria]] and [[Ventricle (heart)|ventricles]] [[contract]] simultaneously, or when the [[right atrium]] contracts against a closed [[tricuspid valve]], the [[blood]] will be pushed against the [[AV valve]], and a very large retrograde [[pressure]] wave travels up the [[jugular vein]]<ref name="urlcannon A waves - definition of cannon A waves in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia.">{{cite web |url=http://medical-dictionary.thefreedictionary.com/cannon+A+waves |title=cannon A waves - definition of cannon A waves in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia. |work= |accessdate=}}</ref><ref name="urlPacemaker Syndrome: Overview - eMedicine Cardiology">{{cite web |url=http://emedicine.medscape.com/article/159706-overview |title=Pacemaker Syndrome: Overview - eMedicine Cardiology |work= |accessdate=}}</ref>. | |||
==Diagnosis== | ==Diagnosis== | ||
| Line 17: | Line 17: | ||
====Neck==== | ====Neck==== | ||
This wave will cause [[pulse|pulsation]] in the neck and abdomen. | This wave will cause [[pulse|pulsation]] in the neck and abdomen. | ||
{{#ev:youtube|gMBZMQwoi_I}} | |||
==Causes== | ==Causes== | ||
| Line 23: | Line 25: | ||
*[[Pacemaker syndrome]] | *[[Pacemaker syndrome]] | ||
*[[Pulmonary hypertension]]<ref>{{cite book |last= Sam |first= Amir H. |coauthors= James T.H. Teo |title= [[Rapid Medicine]] |publisher= [[Wiley-Blackwell]] |year= 2010 |isbn= 1-4051-8323-3}}</ref> | *[[Pulmonary hypertension]]<ref>{{cite book |last= Sam |first= Amir H. |coauthors= James T.H. Teo |title= [[Rapid Medicine]] |publisher= [[Wiley-Blackwell]] |year= 2010 |isbn= 1-4051-8323-3}}</ref> | ||
*[[Ventricular tachycardia]] | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
{{DEFAULTSORT:Cannon A Waves}} | {{DEFAULTSORT:Cannon A Waves}} | ||
| Line 33: | Line 34: | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
[[CME Category::Cardiology]] | |||
[[Category:Cardiology]] | |||
[[Category:Physical examination]] | |||
[[Category:Physical examination]] | [[Category:Physical examination]] | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
Latest revision as of 06:15, 15 March 2016
|
WikiDoc Resources for Cannon a waves |
|
Articles |
|---|
|
Most recent articles on Cannon a waves Most cited articles on Cannon a waves |
|
Media |
|
Powerpoint slides on Cannon a waves |
|
Evidence Based Medicine |
|
Clinical Trials |
|
Ongoing Trials on Cannon a waves at Clinical Trials.gov Trial results on Cannon a waves Clinical Trials on Cannon a waves at Google
|
|
Guidelines / Policies / Govt |
|
US National Guidelines Clearinghouse on Cannon a waves NICE Guidance on Cannon a waves
|
|
Books |
|
News |
|
Commentary |
|
Definitions |
|
Patient Resources / Community |
|
Patient resources on Cannon a waves Discussion groups on Cannon a waves Patient Handouts on Cannon a waves Directions to Hospitals Treating Cannon a waves Risk calculators and risk factors for Cannon a waves
|
|
Healthcare Provider Resources |
|
Causes & Risk Factors for Cannon a waves |
|
Continuing Medical Education (CME) |
|
International |
|
|
|
Business |
|
Experimental / Informatics |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: Cannon A waves; Cannon A wave; Cannon a waves; Cannon a wave; Cannon atrial waves; Canon a waves
Overview
Cannon a waves are waves seen occasionally in the jugular vein of humans with certain cardiac arrhythmias. When the atria and ventricles contract simultaneously, or when the right atrium contracts against a closed tricuspid valve, the blood will be pushed against the AV valve, and a very large retrograde pressure wave travels up the jugular vein[1][2].
Diagnosis
Symptoms
The following may be present:
Physical Examination
Neck
This wave will cause pulsation in the neck and abdomen.
{{#ev:youtube|gMBZMQwoi_I}}
Causes
- Complete heart block[3]
- Junctional rhythms
- Pacemaker syndrome
- Pulmonary hypertension[4]
- Ventricular tachycardia
References
- ↑ "cannon A waves - definition of cannon A waves in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia".
- ↑ "Pacemaker Syndrome: Overview - eMedicine Cardiology".
- ↑ Sam, Amir H. (2010). Rapid Medicine. Wiley-Blackwell. ISBN 1-4051-8323-3. Unknown parameter
|coauthors=ignored (help) - ↑ Sam, Amir H. (2010). Rapid Medicine. Wiley-Blackwell. ISBN 1-4051-8323-3. Unknown parameter
|coauthors=ignored (help)