Krebs: wer komplementäre Therapien nutzt, stirbt früher

[Daggi]

...ist das traurige Ergebnis einer vor wenigen Tagen erschienenen retrospektiven Kohortenstudie bei 1,9 Millionen Krebskranken. Siehe das Bild unten.

Es ging um die Frage ob Krebs-Patienten (ohne Metastasierung), die sich mit effektiven Therapien behandeln lassen von einer zusätzlichen komplementärmedizinischen (also alternativmedizinischen) Therapie (CAM) profitieren oder nicht. Die CAM-Therapien sind diejenigen Therapieformen für die kein Wirksamkeitsnachweis vorliegt. Das Problem kommt dabei offenbar gar nicht von den komplementärmedizinischen Therapien und Wellnessbemühungen, sondern es zeigte sich daß die Kranken die zusätzlich Alternativmedizin nutzen, dazu neigen herkömmliche, effektive Therapieformen nur zum Teil zu nutzen.

CONCLUSIONS AND RELEVANCE In this study, patients who received CM were more likely to
refuse additional CCT, and had a higher risk of death. The results suggest that mortality risk
associated with CM was mediated by the refusal of CCT.

CAM oder CM=Alternativmedizin
CCT=konventionelle Therapie

Quelle:
Skyler B. Johnson, MD; Henry S. Park, MD, MPH; Cary P. Gross, MD; James B. Yu, MD, MHS: Complementary Medicine, Refusal of Conventional Cancer
Therapy, and Survival Among Patients With Curable Cancers, JAMA Oncology, 19.7.2018

(gibts bei sci hub tw unter  doi:10.1001/jamaoncol.2018.2487 )

http://sci-hub.tw/10.1001/jamaoncol.2018.2487

[Daggi]

Noch eine kurze Zusammenfassung (Quackwatch):

"Complementary medicine" (CM) use linked to worse outcomes for cancer patients

From a national database of more than 1.9 million patients, researchers identified 258 users of CM who were diagnosed with non-metastatic breast, prostate, lung, or colorectal cancer from 2004 through 2013. This group was compared to four times as many nonusers of CM who were similar in neighborhood of residence, age, stage of cancer, concurrent health problems, insurance type, race/ethnicity, year of diagnosis, and type of cancer. All patients in both groups had undergone chemotherapy, radiotherapy, surgery, and/or hormone therapy. The modalities involved were herbs and botanicals; vitamins and minerals; probiotics; Ayurvedic medicine; traditional Chinese medicine; homeopathy and naturopathy; deep breathing; yoga; Tai Chi; Qi Gong; acupuncture; chiropractic or osteopathic manipulation; meditation; massage; prayer; special diets; progressive relaxation; and/or guided imagery. The findings included:

CM use was associated with higher stage of cancer, younger age, being female, having private insurance, higher socioeconomic status, higher income, and higher educational level.
CM users were more likely than nonusers to refuse standard cancer therapies: (a) surgery [7.0% versus 0.1%], (b) chemotherapy [34.1% versus 3.2%], (c) radiation [53.0% versus 2.3%], and (d) hormone therapy [33.7% versus 2.8%].
CM users were estimated to have a 1.50 to 2.90 times greater risk of dying, which appeared to be due to the refusal or delay of standard treatment.
Among patients who received only standard treatment, the survival rates were higher for breast cancers (90.4% vs 84.4%), slightly higher for colorectal cancers (84.4% vs 81.4%), and similar for prostate and lung cancers.