OtherClinical Investigations

Sympathetic Denervation and Reinnervation After the Maze Procedure

Megumi Mabuchi, Michiaki Imamura, Naoki Kubo, Koichi Morita, Kazuyuki Noriyasu, Takahiro Tsukamoto, Keisyu Yasuda and Nagara Tamaki
Journal of Nuclear Medicine July 2005, 46 (7) 1089-1094;

Article Figures & Data

Figures

  • FIGURE 1.
    FIGURE 1.

    Serial changes of LVEFs in both groups: Maze+ (A) and Maze− (B). Pre = preoperative LVEF; 10 d = LVEF 10 d after surgery; 1 y = LVEF 1 y after surgery.

  • FIGURE 2.
    FIGURE 2.

    Serial changes in H/Ms of both groups: Maze+ (A) and Maze− (B). Pre = preoperative H/M; 10 d = H/M 10 d after surgery; 1 y = H/M 1 y after surgery.

  • FIGURE 3.
    FIGURE 3.

    Serial changes in WRs of both groups: Maze+ (A) and Maze− (B). Pre = preoperative WR; 10 d = WR 10 d after surgery; 1 y = WR 1 y after surgery.

  • FIGURE 4.
    FIGURE 4.

    A 68-y-old man (patient 2) who had undergone MV replacement with Maze procedure. Reduction in uptake of 123I-MIBG and increase in WR were observed 10 d after surgery in lateral region (arrows). These changes resolved 1 y after surgery. Pre = preoperative images; 10 d = images 10 d after surgery; 1 y = images 1 y after surgery; SA = short-axis images; HLA = horizontal long-axis images.

  • FIGURE 5.
    FIGURE 5.

    A 60-y-old woman (patient 12) who had undergone MV replacement without Maze procedure. Distribution of 123I-MIBG exhibited no regional change after surgery. Pre = preoperative images; 10 d = images 10 d after surgery; 1 y = images 1 y after surgery; SA = short-axis images; HLA = horizontal long-axis images.

  • FIGURE 6.
    FIGURE 6.

    Correlation between changes in H/M, WR, and LVEF: correlation between changes in H/M and LVEF (A) and that between changes in WR and LVEF (B). •, Changes between before surgery and 10 d after surgery in Maze+ group; ○, those of Maze− group; ▪, changes between 10 d and 1 y after surgery in Maze+ group; □, those of Maze− group.

Tables

  • TABLE 1

    Preoperative Characteristics

    Patient no.Age (y)SexMaze* (±)AF† (±)LVEF (%)
    153M++58
    268M++55
    371M++72
    453M++58
    548F++54
    661M++65
    723F−−64
    872M−+32
    971M−+54
    1065M−+46
    1162M−+70
    1260F−+65
    1342M−−50

    • ↵* Maze (±) indicates with Maze procedure (+) or without Maze procedure (−).

    • ↵† AF (±) refers to rhythm before surgery.

    • LVEF = left ventricular ejection fraction.

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