AHJ：子宫外科手术并不增加心脏病风险

与一些更最初研究课题相反，一项上新的美国研究课题见到更早熟男士完成乳房矫正（于其或不于其子宫切除）后，肠胃疾病的后果未能增高。这些男士肠胃病的后果并不高于连续性绝经的男士，该上新研究课题却说。

西雅图该大学首席作家Karen A. Matthews及同事在一份研究报告中都写下了他们的见到，这份研究报告计划于本周网络服务发布于《美国脑溢血学会刊物》。

Matthews，西雅图的一位多才多艺的佛洛伊德客座教授和美国疾病控制与预防中心与心理学客座教授，在一份小组会议中都公开信，这些结果对正在考虑乳房矫正的更早熟男士来却说应该是无疑的：

“研究课题结果得出结论，相对于连续性绝经后，乳房矫正后的肠胃病后果生物体高度不大有可能增高，”Matthews却说。

乳房矫正与肠胃病后果

乳房矫正是一种常见的移走男士乳房的外科手术操作。有时，病人还移走子宫，以增加子宫癌后果。

有时有可能明显需要完成该操作，比如因为癌症、乳房下垂、表皮样肌瘤，或因为非常重的月经过多与痛经，但与此同时，和所有外科手术一样，仍要权衡其收益与后果。

因为激素偏离，在绝经当年完成乳房矫正常引发愈来愈年期提当年。

一些更最初研究课题得出结论乳房矫正增加肠胃疾病的长期后果，而肠胃疾病是男士头号杰森。而且他们应为，如果同时切除子宫，该后果将愈来愈高。

但是该见解只不过，主要因为这些研究课题倾向于风险评估乳房矫正与/或子宫矫正多年再次的肠胃病后果，而很难将她们在外科手术之当年就有可能有的后果考虑进去。

研究课题者们好好了什么

而在该项上新研究课题中都，Matthews及其同事随访了3,302位美国绝经当年男士11年。这些男士参加了全省男士研究课题（SWAN）。

研究课题伊始，当这些男士转至到SWAN时，她们42-52岁，乳房比较简单，有非常少1个子宫，且很难用于甲状腺激素疗法。

在随访其间，每年给她们好好风险评估。在此其间，大部分男士大幅提高连续性绝经岁数，一些完成了乳房矫正于其子宫矫正，而一些则不于其子宫矫正。

完成乳房矫正的主要诱因是表皮样肌瘤、月经过多和慢性肋骨痛。

研究课题者在乳房矫正当年后风险评估了参加者的肠胃病后果，并将这些数据与那些连续性绝经的男士终于一次月经当年后的后果相比。

Matthews及其同事却说，他们的研究课题是不单是多民族性研究课题，了完成乳房矫正与连续性绝经的男士的肠胃病后果生物体的每年预期偏离。

见到了什么

该分析结果显示乳房矫正当年后与连续性绝经当年后肠胃后果生物体暴发转变，在各不相同群体，乳房矫正者与连续性绝经者转变模式大不相同；同时，总体转变模式结果显示乳房矫正者肠胃后果未能增高，研究课题者们却说。并且，此情况在所有族群组都一样。

并且，即使在调整有可能的影响生物体——比如人体质量指数（BMI）——再次，情况仍一样。乳房矫正于其子宫矫正后，BMI无论如何有所增高。

诱因是什么

Mathews却说他们并不确定为什么他们的见到与结果显示乳房矫正下降肠胃病后果的更最初研究课题各不相同。

一个诱因有可能是，他们很难将年轻男士纳入研究课题，而愈来愈更早完成乳房矫正引发的肠胃病后果愈来愈高。

另一个诱因，Matthews却说，有可能是因为该研究课题排除了因为癌症而完成乳房矫正的男士。

SWAN由国家政府老年医学研究课题所、国立护理研究课题所、国立卫生研究课题院、男士健康研究课题室和补足与替代综合医院合作号召。

2011年，《内生物科学档案》刊物写道，来自旧金山加利福尼亚该大学的研究课题者们另据，他们见到完成了乳房矫正于其子宫矫正的男士暴发子宫癌的后果增加，并且暴发其它并不一定癌症、脑溢血或髋骨折的后果未能下降。

与乳房切除相关的扩充选读：

译者选读：Hysterectomy does not increase risk of cardiovascular diseasePositive findings differ from previous studies on hysterectomy, heart disease riskHing a hysterectomy with or without ovary removal in mid-life does not increase a woman's risk of cardiovascular disease compared to women who reach natural menopause, contrary to many previously reported studies, according to research published online today in the Journal of the American College of Cardiology."Middle-aged women who are considering hysterectomy should be encouraged because our results suggest that increased levels of cardiovascular risk factors are not any more likely after hysterectomy relative to after natural menopause," said Karen A. Matthews, PhD, lead author of the study and a distinguished professor of psychiatry and professor of epidemiology and psychology at the University of Pittsburgh.Hysterectomy is the surgical removal of a woman's uterus; it is sometimes accompanied by the removal of the ovaries to decrease the risk of ovarian cancer. Hysterectomy is a common surgical procedure for women, but the benefits must be weighed against potential long-term related health consequences. Cardiovascular disease is the number one killer of women and many studies he shown increased risk of cardiovascular disease to be a health risk associated with hysterectomy, especially accompanied by ovary removal. Researchers in those studies usually evaluated cardiovascular disease risk factors years after hysterectomy and/or ovary removal and did not assess individual risk factor levels pre-surgery.For this study, investigators followed 3,302 premenopausal women between the ages of 42-52 for 11 years who were enrolled in the Study of Women's Health across the Nation (SWAN). Researchers compared cardiovascular disease risk factors in women prior to and following elective hysterectomy with or without ovary removal to the risk factors prior to and following final menstrual period in women who underwent natural menopause.This is the only multiethnic study that has tracked prospective annual changes in cardiovascular disease risk factors relative to hysterectomy or natural menopause.Investigators found that several cardiovascular disease risk factor changes differed prior to and following hysterectomy, compared to changes prior to and following a natural menopause, but those changes did not suggest an increased cardiovascular disease risk following hysterectomy, independent of body mass index, which did increase after hysterectomy with removal of ovaries. These effects were similar in all ethnic groups in the study.Dr. Matthews said it is unclear why this study's findings differed from other studies exploring hysterectomy and cardiovascular risk, but likely factors include the age of participants since hysterectomy that occurs earlier in life may present more cardiovascular risk. Also, earlier studies included women who had hysterectomy for any reason, whereas the SWAN study excluded women who had hysterectomy because of cancers. "This study will prove very reassuring to women who he undergone hysterectomy," said American College of Cardiology CardioSmart Chief Medical Expert JoAnne Foody, MD, FACC. "As with anything, if a woman is concerned about her risk for heart disease she should discuss this with her health care provider."