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The effects of intraoperative ICG fluorescence angiography in laparoscopic low anterior resection: a propensity score-matched study.
International Journal of Clinical Oncology 2018 November 9
BACKGROUND: It remains unclear whether indocyanine green (ICG) angiography could reduce the rate of postoperative anastomotic leakage (AL) following rectal surgery. The aim was to determine whether intraoperative ICG angiography could decrease symptomatic AL following laparoscopic low anterior resection (LAR).
METHODS: This is a retrospective study of 149 patients with rectal cancer who underwent laparoscopic LAR at a single institution. Propensity score matching (PSM) was employed to compare groups with and without ICG angiography.
RESULTS: Before PSM, the symptomatic AL rate was 10.4% (5/48) in patients with ICG angiography, compared with 6.9% (7/101) in cases without ICG angiography (P = 0.52). In patients with ICG angiography, poor perfusion of the proximal colon judged by ICG angiography led to additional colon resection in 27.1% (13/48). Symptomatic AL occurred in 30.8% (4/13) of the patients who had revision of the transection site, whereas it occurred in only 2.9% (1/35) of the patients who did not need revision of the transection site (P = 0.015). After PSM, the symptomatic AL rate was 8.8% (3/34) in patients with ICG angiography, compared with 14.7% (5/34) in cases without ICG angiography (P = 0.71). In univariate analysis, high BMI, preoperative chemotherapy, and lateral lymph node dissection were significantly associated with symptomatic AL. Multivariate analysis indicated that only lateral lymph node dissection remained significantly associated with AL (odds ratio, 10.05; 95% confidence interval, 1.75-58.61; P = 0.011).
CONCLUSIONS: Intraoperative ICG angiography is useful for prediction of AL following laparoscopic LAR.
METHODS: This is a retrospective study of 149 patients with rectal cancer who underwent laparoscopic LAR at a single institution. Propensity score matching (PSM) was employed to compare groups with and without ICG angiography.
RESULTS: Before PSM, the symptomatic AL rate was 10.4% (5/48) in patients with ICG angiography, compared with 6.9% (7/101) in cases without ICG angiography (P = 0.52). In patients with ICG angiography, poor perfusion of the proximal colon judged by ICG angiography led to additional colon resection in 27.1% (13/48). Symptomatic AL occurred in 30.8% (4/13) of the patients who had revision of the transection site, whereas it occurred in only 2.9% (1/35) of the patients who did not need revision of the transection site (P = 0.015). After PSM, the symptomatic AL rate was 8.8% (3/34) in patients with ICG angiography, compared with 14.7% (5/34) in cases without ICG angiography (P = 0.71). In univariate analysis, high BMI, preoperative chemotherapy, and lateral lymph node dissection were significantly associated with symptomatic AL. Multivariate analysis indicated that only lateral lymph node dissection remained significantly associated with AL (odds ratio, 10.05; 95% confidence interval, 1.75-58.61; P = 0.011).
CONCLUSIONS: Intraoperative ICG angiography is useful for prediction of AL following laparoscopic LAR.
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