A variant course of posterior descending artery

Arsiwala, Saify; Panday, Sharad

doi:10.1016/s0022-5223(19)34176-5

Cited by 3 publications

(3 citation statements)

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“…We did not find in any of our cases that the PIA gives off the ramous septi fibrosi, a finding that is also stressed by McAlpin (1975), Arsiwala and Panday (1993), and Krupa (1993). In contrast, others report that the PIA may also give off the ramous septi fibrosi (Campbell, 1922; 1961; Evans and Shaw, 1977).…”

Section: Discussionsupporting

confidence: 80%

“…In seven cases of the 16 with short PIA (44%) or 14% of the 50 cases in total, the distal part of the posterior interventricular groove was occupied by the PRDA which must be distinguished from the long PIA in the coronary arteriograms. Levin and Baltaxe (1972) reported an incidence of 14%, Arsiwala and Panday (1993) reported an incidence of 18%, and Nerantzis et al (1994) reported an incidence of 14%. The unique case with an abnormal crossing of the PIV was the only one described in the literature (Nerantzis et al,., 1995).…”

Section: Discussionmentioning

confidence: 99%

“…Previous reports describing the coronary arteries and their branches refer only to the frequency with which the posterior interventricular artery (PIA) originates from the right coronary artery (RCA) or left circumflex, and simply mention that its course lies in the posterior interventricular groove (Crainicianu, 1922;Campbell, 1929;Smith, 1962;Levin and Baltaxe,1972;Arsiwala and Panday, 1993;Nerantzis et al, 1994). In a few studies it is further mentioned that the PIA descends along the right or left side of the posterior interventricular vein (PIV) and that it may lie superficially or deeper from it (James, 1961;Baroldi and Scomazzoni,1965;McAlpin,1975).…”

mentioning

confidence: 99%

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Variations in the origin and course of the posterior interventricular artery in relation to the crux cordis and the posterior interventricular vein: An anatomical study

et al. 1998

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Corrosion castings of 60 human hearts were used to demonstrate that the point of origin of the posterior interventricular artery (PIA), in relation to the crux cordis, is responsible for its subsequent course with respect to the posterior interventricular vein (PIV). In seven cases (12%), the PIA appeared as the continuation of the left circumflex, descending rightwards and on a deeper level of the PIV. In 53 cases (88%), the PIA arose from the right coronary artery (RCA) and 50 of these were selected to be classified into three groups, according to the PIAs origin and course. In group A (29 cases, 58%) and B (seven cases, 14%), the PIA emerged before the crux cordis and descended to the right or left of the PIV, respectively. In group C (14 cases, 28%), it originated at, or beyond, the crux cordis and descended along the left side of the PIV. Among the 50 cases, the PIA was found to be long in 34 (68%), large in 32 (64%), and long and large in 29 cases (58%). In 18 of the latter 29 cases (62%) or 36% of the 50 cases in total, the PIA arose as a continuation of the RCA (group A) and therefore these cases were easily accessible to interventional cardiologists and also to surgeons, since the PIA lay on the same or on a superficial level in relation to the PIV. This work describes and explains the variations of the PIA and concludes that at least 36% of these may be helpful in coronary artery angioplasty and bypass surgery.

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Section: Discussionsupporting

confidence: 80%