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Figure 2 Cumulative frequency distribution of minimum lumen diameter at baseline, after PTCA alone or after combined debulking and adjunctive PTCA as shown for the parent vessel (A) and the side branch (B). The final minimum lumen diameter after debulking plus postdilation was significantly larger than after balloon dilation alone in both the parent vessel (2.48 ± 0.57 vs. 1.97 ± 0.65 mm, p = 0.001) and the side branch (2.22 ± 0.53 vs. 1.39 ± 0.55 mm, p < 0.001). (A) Open triangles = PTCA baseline; open circles = debulking baseline; solid squares = PTCA final; solid triangles = debulking final. (B) Open triangles = debulking baseline; solid triangles = debulking final; open squares = PTCA baseline; solid squares = PTCA final.