A sex-stratified long-term clinical outcome analysis in coronary chronic total occlusion patients,Biology of Sex Differences

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A sex-stratified long-term clinical outcome analysis in coronary chronic total occlusion patients
Biology of Sex Differences ( IF 4.9 ) Pub Date : 2021-01-08 , DOI: 10.1186/s13293-020-00354-z
Xuhe Gong ₁ , Li Zhou ₁ , Xiaosong Ding ₁ , Hongwei Li _{1,

2,

3} , Hui Chen ₁

Affiliation

Differences in outcomes for women and men after percutaneous coronary intervention (PCI) in chronic total occlusion (CTO) patients remain controversial. Herein, we compared the clinical outcomes by sex in CTO patients undergoing PCI. A total of 563 consecutive patients (19% women) who were diagnosed with CTO at a single center in China from June 2017 to December 2019 were included in this study. Three hundred patients were revascularized by PCI, and 263 were not revascularized. The clinical outcomes of these patients stratified by sex were examined. The primary endpoints included the risk of major adverse cardiovascular and cerebrovascular events (MACCE); the secondary endpoint was cardiac death; hazard ratios were generated using multivariable Cox regression. Women represented 19% of the cohort (107/563 patients). Women have lower mean body mass index (BMI) and abdominal circumference compared with men; however, the proportion of hypertension, diabetes, and previous coronary heart disease is higher in female patients. At 2-year follow-up, there were no differences between men and women for MACCE (15.8% vs 20.6%, p = 0.234) and cardiac death (3.1% vs 5.6%, p = 0.202). Predictors of CTO recanalization revealed that age < 65 years, absence of prior CABG, no history of DM, and non-triple vessel were predictors of CTO recanalization. Sex did not predict recanalization in this regression model. Successful CTO PCI was associated with reduced MACCE. Our study suggests an equal benefit of CTO recanalization with a marked reduction in MACCE in women and men alike. Further dedicated studies are needed to confirm these findings.

更新日期：2021-01-10

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