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Atrioventricular block in dogs is more complex than one might guess—especially the first-degree type, which subtly affects the heart's pacing. Understanding these nuances could be key to spotting early signs of heart issues in our pets. Curious how vets manage this?
https://www.petmd.com/dog/conditions/cardiovascular/c_dg_atrioventricular_block_first_degree
#caninehealth #heartconditions #dogcaretips
https://www.petmd.com/dog/conditions/cardiovascular/c_dg_atrioventricular_block_first_degree
#caninehealth #heartconditions #dogcaretips
Atrioventricular block in dogs is more complex than one might guess—especially the first-degree type, which subtly affects the heart's pacing. Understanding these nuances could be key to spotting early signs of heart issues in our pets. Curious how vets manage this?
https://www.petmd.com/dog/conditions/cardiovascular/c_dg_atrioventricular_block_first_degree
#caninehealth #heartconditions #dogcaretips
%20in%20Dogs%22,%22inLanguage%22:%22en-US%22,%22isFamilyFriendly%22:%22True%22,%22articleSection%22:%22Cardiovascular%22,%22thumbnailUrl%22:%22%22,%22image%22:%7B%22@type%22:%22ImageObject%22,%22url%22:%22%22%7D,%22author%22:%7B%22@type%22:%22Person%22,%22name%22:%22PetMD%20Editorial%22,%22url%22:%22https:%5C/%5C/www.petmd.com%5C/author%5C/tierischgut%22%7D,%22keywords%22:%22Dog,%20Condition,%20Cardiac%20health%22,%22publisher%22:%7B%22@type%22:%22Organization%22,%22name%22:%22PetMD%22,%22logo%22:%7B%22@type%22:%22ImageObject%22,%22url%22:%22https:%5C/%5C/www.petmd.com%5C/images%5C/petmd_logo.png%22%7D,%22url%22:%22https:%5C/%5C/www.petmd.com%22%7D,%22mainEntityOfPage%22:%7B%22@type%22:%22WebPage%22,%22@id%22:%22https:%5C/%5C/www.petmd.com%5C/dog%5C/conditions%5C/cardiovascular%5C/c_dg_atrioventricular_block_first_degree%22%7D,%22datePublished%22:%222009-12-17T04:42:11-05:00%22,%22dateModified%22:%222022-08-16T09:29:15-04:00%22,%22description%22:%22A%20normal%20heart%20contraction%20is%20caused%20by%20an%20electrical%20impulse%20originating%20from%20the%20sinoatrial%20node,%20stimulating%20the%20atria,%20traveling%20to%20the%20atrioventricular%20node%20and%20finally%20to%20the%20ventricles.%20First-degree%20atrioventricular%20block%20is%20a%20condition%20in%20which%20the%20electrical%20conduction%20from%20the%20atria%20to%20the%20ventricles%20is%20delayed,%20or%20prolonged.%22,%22articleBody%22:%22Atrioventricular%20Block,%20First%20Degree%20in%20Dogs%20A%20normal%20heart%20contraction%20is%20caused%20by%20an%20electrical%20impulse%20originating%20from%20the%20sinoatrial%20node,%20stimulating%20the%20atria,%20traveling%20to%20the%20atrioventricular%20node%20and%20finally%20to%20the%20ventricles.%20First-degree%20atrioventricular%20block%20is%20a%20condition%20in%20which%20the%20electrical%20conduction%20from%20the%20atria%20to%20the%20ventricles%20is%20delayed,%20or%20prolonged.%20On%20an%20electrocardiogram%20(EKG)%20this%20shows%20as%20a%20prolonged%20PR%20interval%20--%20the%20time%20between%20the%20main%20electrical%20impulse,%20called%20the%20P%20wave,%20and%20the%20QRS%20complex,%20which%20is%20recognized%20as%20the%20heart%20beat.%20First-degree%20AV%20block%20may%20be%20found%20in%20young,%20healthy%20dogs%20due%20to%20a%20high%20vagal%20tone%20(impulses%20from%20the%20vagus%20nerve%20that%20produce%20an%20inhibition%20in%20the%20heart%20beat),%20and%20it%20is%20also%20often%20noted%20in%20elderly%20Cocker%20Spaniels%20and%20Dachshunds%20with%20degenerative%20conduction%20system%20disease.%20Symptoms%20and%20Types%20Most%20dogs%20with%20this%20condition%20will%20not%20show%20signs%20of%20the%20condition.%20However,%20if%20induced%20by%20digoxin%20(heart%20medication)%20overdose,%20there%20may%20be%20a%20loss%20of%20appetite,%20vomiting,%20and%20diarrhea.%20Causes%20Although%20it%20may%20occur%20in%20otherwise%20healthy%20dogs,%20Dachshunds%20and%20Cocker%20Spaniels%20are%20known%20to%20be%20more%20prone%20to%20first-degree%20AV%20block.%20Additionally,%20prescription%20medication%20such%20as%20digoxin,%20bethanechol,%20physostigmine,%20and%20pilocarpine,%20may%20predispose%20animals%20to%20first-degree%20AV%20block.%20Some%20other%20common%20causes%20for%20the%20condition%20include:%20Calcium%20deficiencyDegenerative%20disease%20of%20the%20electrical%20conduction%20systemHypertrophic%20cardiomyopathyInflammation%20of%20the%20heartInfiltrative%20diseases%20(tumors,%20amyloidosis)Atropine%20(used%20to%20control%20spasms)%20administered%20intravenously%20may%20also%20briefly%20prolong%20the%20PR%20intervalDiagnosis%20In%20addition%20to%20the%20full%20physical%20exam,%20your%20veterinarian%20will%20take%20a%20complete%20background%20history%20of%20your%20dog's%20health,%20when%20the%20symptoms%20began%20and%20any%20other%20symptoms%20that%20may%20point%20your%20doctor%20to%20the%20underlying%20cause.%20Standard%20tests%20include%20a%20chemical%20blood%20profile%20and%20a%20complete%20blood%20count%20to%20check%20for%20imbalances%20or%20infections.%20An%20echocardiogram%20(EKG)%20will%20be%20conducted%20to%20rule%20out%20certain%20types%20of%20heart%20diseases,%20and%20X-ray%20or%20ultrasound%20imaging%20can%20be%20used%20for%20internal%20imaging%20of%20the%20heart,%20confirming%20the%20presence%20of%20masses,%20or%20ruling%20them%20out.%20Gastrointestinal%20disorders,%20high%20pressure%20in%20the%20eye%20and%20upper%20airway%20disease%20are%20some%20of%20the%20diseases%20that%20can%20lead%20this%20disorder,%20all%20of%20which%20are%20unrelated%20(directly)%20to%20the%20heart.%20An%20EKG%20recording%20can%20be%20used%20to%20examine%20the%20electrical%20currents%20in%20the%20heart%20muscles,%20and%20may%20reveal%20the%20exact%20abnormalities%20that%20are%20taking%20place%20in%20the%20cardiac%20electrical%20conduction%20(which%20underlies%20the%20heart%5Cu2019s%20ability%20to%20contract%5C/beat).%20Treatment%20Depending%20on%20the%20underlying%20disease%20causing%20the%20atrioventricular%20block,%20treatment%20will%20vary.%20Living%20and%20Management%20Your%20veterinarian%20will%20prescribe%20diet%20guidelines%20as%20necessary%20to%20treat%20the%20underlying%20cause%20of%20the%20disease.%20You%20will%20need%20to%20follow-up%20with%20your%20veterinarian%20for%20regular%20appointments%20so%20that%20any%20changes%20can%20be%20addressed%20immediately.%20EKGs%20will%20be%20taken%20at%20each%20visit%20to%20follow%20the%20progress%20of%20the%20heart's%20ability%20to%20conduct%20properly.%20%22%7D){kind=logo}
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