Fig 1.
The various origins of the sinoatrial nodal artery (SANa) as seen from a superior view with their calculated pooled prevalence in the overall population.
(A) From the Right Coronary Artery; (B) From the Left Circumflex Artery (proximal); (C) From the Left Circumflex Artery (distal); (D) From the Left Coronary Artery; (E) From the Aorta; (F) Dual origin from the Right Coronary Artery and the Left Circumflex Artery. The prevalence rates for B and C are reported as a combined rate. LA, Left Atrium; RA, Right Atrium; SVC, Superior Vena Cava; Ao, Aorta; P, Pulmonary Trunk; RCA, Right Coronary Artery; LCA, Left Coronary Artery; LCX, Left Circumflex Artery; LAD, Left Anterior Descending Artery; SANa, Sinoatrial Nodal Artery.
Fig 2.
The various courses of the sinoatrial nodal artery (SANa) as seen from a superior view.
(A) Retrocaval course; (B) Pericaval course; (C) Precaval course. LA, Left Atrium; RA, Right Atrium; SVC, Superior Vena Cava; Ao, Aorta; P, Pulmonary Trunk; RCA, Right Coronary Artery; LCA, Left Coronary Artery; LCX, Left Circumflex Artery; LAD, Left Anterior Descending Artery; SANa, Sinoatrial Nodal Artery.
Fig 3.
Flow chart of study identification, evaluation and inclusion in the meta-analysis.
Table 1.
Characteristics of the included studies.
Table 2.
Number of the sinoatrial nodal artery (SANa) in different population subgroups.
Table 3.
Origin of the sinoatrial nodal artery (SANa) in different population subgroups.
Table 4.
Course of the sinoatrial nodal artery (SANa) in different population subgroups.
Table 5.
S-shaped branches of the sinoatrial nodal artery (SANa) in different population subgroups.
Table 6.
Distance between the origin of the sinoatrial nodal artery (SANa) and the ostia of the right coronary artery (RCA) and the left circumflex artery (LCX) in different population subgroups.
Table 7.
Diameter of the sinoatrial nodal artery (SANa) in different population subgroups.