363:
29:
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337:
A left S-shaped sinoatrial artery, originating from the proximal left circumflex or LCx artery, has been described as a common variant in approximately 10% of human hearts. This artery is larger than normal and supplies a good part of the
306:
The origin of the sinoatrial node artery is not related to coronary artery dominance, which means the side (right or left) that provides the circulation to the back of the heart. In contrast, the
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500:"Anomalous coronary arteries: location, degree of atherosclerosis and effect on survival—a report from the coronary artery surgery study"
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and the atrioventricular nodal areas. In this variant, the artery courses in the sulcus between the left superior pulmonary vein and the
329:
The sinoatrial node surrounds the sinoatrial artery, which can run centrally (in 70% of individuals) or off-center within the node.
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3D volume rendered CTA image showing sinoatrial nodal artery originating from the proximal circumflex artery. Variant anatomy.
1021:
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234:
Curved planar reformatted image of sinoatrial nodal artery originating from proximal left circumflex artery. Variant anatomy.
350:
where it could be susceptible to injury during catheter or surgical ablation procedures on the left atrium, especially for
725:
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629:
964:
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410:"Anatomical Aspects of the Arterial Blood Supply to the Sinoatrial and Atrioventricular Nodes of the Human Heart"
291:
in about 40% of individuals, and in less than 1% of humans, the artery has an anomalous origin directly from the
919:
590:
Saremi, Farhood; Channual, Stephanie; et al. (June 2008). "MDCT of the S-Shaped
Sinoatrial Node Artery".
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In more than 50% of human hearts, the artery actually courses close to the superior posterior aspect of the
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262:, the natural pacemaker center of the heart. It is usually a branch of the
541:"The terminal crest: morphological features relevant to electrophysiology"
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455:. K. Bo Foreman, Kurt H. Albertine (2nd ed.). New York. p. 54.
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Sánchez-Quintana, D.; Anderson, R. H.; et al. (1 October 2002).
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161:
625:
498:
Click, Roger L.; Holmes, David R.; et al. (March 1989).
266:. It passes between the right atrium, and the opening of the
16:
Artery of the heart which supplies the sinoatrial node
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342:, but also right-sided structures like part of the
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ramus nodi sinuatrialis arteriae coronariae dextrae
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21:
408:Pejković, B; Krajnc, I; et al. (July 2008).
310:, that is the artery that brings blood to the
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504:Journal of the American College of Cardiology
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483:: CS1 maint: location missing publisher (
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27:
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414:Journal of International Medical Research
314:, depends on coronary artery dominance.
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287:in around 60% of individuals, from the
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18:
7:
403:
401:
41:(central on image), surrounding the
14:
592:American Journal of Roentgenology
372:
354:or open-heart cardiac surgery.
289:left circumflex coronary artery
452:The Big Picture: Gross Anatomy
1:
380:Sternocostal surface of heart
308:atrioventricular nodal branch
517:10.1016/0735-1097(89)90588-3
352:atrial fibrillation ablation
1073:
1022:Posterior intercostal 3–11
427:10.1177/147323000803600410
969:Posterior intercostal 1–2
449:Morton, David A. (2018).
212:
94:anterior interventricular
54:
45:(on lumen in the image).
26:
758:Left anterior descending
244:sinoatrial nodal artery
240:sinoatrial nodal artery
75:SANB = sinuatrial nodal
43:sinuatrial nodal artery
22:Sinoatrial nodal artery
1057:Arteries of the thorax
558:10.1136/heart.88.4.406
367:
235:
214:Anatomical terminology
114:atrioventricular nodal
689:Ligamentum arteriosum
384:right coronary artery
365:
348:left atrial appendage
312:atrioventricular node
301:right coronary artery
285:right coronary artery
264:right coronary artery
233:
940:Perforating branches
925:Anterior intercostal
857:Right common carotid
741:Posterior descending
708:Coronary circulation
104:posterior descending
965:Highest intercostal
960:Costocervical trunk
953:superior epigastric
935:Pericardiacophrenic
899:Carotid bifurcation
604:10.2214/AJR.07.3127
283:It arises from the
258:which supplies the
368:
324:interatrial septum
268:superior vena cava
236:
33:Low magnification
1044:
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920:Internal thoracic
462:978-1-259-86264-9
358:Additional images
248:sinoatrial artery
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227:
223:
89:circumflex branch
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1032:Superior phrenic
882:Internal carotid
877:External carotid
852:Right subclavian
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805:Descending aorta
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675:Pulmonary artery
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598:(6): 1569–1575.
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386:visible at left)
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297:descending aorta
220:edit on Wikidata
129:anterior cardiac
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839:Brachiocephalic
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815:Abdominal aorta
795:Ascending aorta
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763:Left circumflex
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869:common carotid
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551:(4): 406–411.
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510:(3): 531–537.
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420:(4): 691–698.
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134:great cardiac
130:
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124:small cardiac
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109:left marginal
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99:left marginal
95:
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84:left coronary
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47:H&E stain
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889:Carotid body
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299:, or distal
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183:A12.2.03.212
179:A12.2.03.104
166:
118:
61:
42:
1012:Mediastinal
830:Aortic arch
820:Aortic body
800:Aortic arch
340:left atrium
156:Identifiers
1007:Esophageal
989:Descending
911:subclavian
471:1044772257
392:References
132:AIV/GCV =
102:PIA/PDA =
92:LAD/AIB =
35:micrograph
1027:Subcostal
1019:parietal:
1002:Bronchial
999:visceral:
479:cite book
333:Variation
62:Arteries:
1051:Category
945:terminal
788:Sections
726:AV nodal
721:SA nodal
653:Arteries
612:18492908
577:12231604
436:18652764
655:of the
568:1767383
526:2918156
274:Anatomy
254:of the
151:Details
107:MARG =
930:Thymic
731:Atrial
610:
575:
565:
524:
469:
459:
434:
318:Course
279:Origin
252:artery
250:is an
137:MCV =
127:ACV =
122:SCV =
119:Veins:
112:AVN =
97:LMA =
82:LCA =
77:RMA =
65:RCA =
991:aorta
780:Aorta
701:Heart
680:Right
668:Lungs
661:chest
657:torso
545:Heart
256:heart
218:[
162:Latin
142:CS =
87:CB =
70:AB =
37:of a
909:Left
867:Left
685:Left
659:and
608:PMID
573:PMID
522:PMID
485:link
467:OCLC
457:ISBN
432:PMID
238:The
207:3823
195:4133
174:TA98
600:doi
596:190
563:PMC
553:doi
512:doi
422:doi
246:or
202:FMA
190:TA2
1053::
951:,
606:.
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571:.
561:.
549:88
547:.
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520:.
508:13
506:.
502:.
481:}}
477:{{
465:.
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418:36
416:.
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400:^
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382:(
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49:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
