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Both massage therapy and simple touch help cancer patients

PainSci » bibliography » Kutner et al 2008
Tags: massage, treatment, controversy, mind, manual therapy, debunkery

One article on PainSci cites Kutner 2008: Does Massage Therapy Work?

PainSci commentary on Kutner 2008: ?This page is one of thousands in the bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided wherever possible.

This study showed that “massage may have immediately beneficial effects on pain and mood among patients with advanced cancer” and that it didn’t do much more than simple touch … but they both helped. This is both a scientific blow for massage therapy and a nice validation at the same time. It doesn’t say much for the ability of trained therapists to do any more for a cancer patient than a compassionate nurse can. But it also reinforces the reassuring idea that any kind of touch is therapeutic, and that skill may not be a critical factor in the value of massage therapy to some patients. (Over the years, I’ve seen many amateurs who could give excellent massages simply by virtue of their empathy and attentiveness. Could massage “skill” be mostly just an extension of social skills? Might be.)

Incomplete blinding is a significant weakness in the study. The massage therapists knew what treatment they were giving: “possibly leading to reporting bias and the overestimation of a beneficial effect.”

~ Paul Ingraham

original abstract Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.

BACKGROUND: Small studies of variable quality suggest that massage therapy may relieve pain and other symptoms.

OBJECTIVE: To evaluate the efficacy of massage for decreasing pain and symptom distress and improving quality of life among persons with advanced cancer.

DESIGN: Multisite, randomized clinical trial.

SETTING: Population-based Palliative Care Research Network.

PATIENTS: 380 adults with advanced cancer who were experiencing moderate-to-severe pain; 90% were enrolled in hospice.

INTERVENTION: Six 30-minute massage or simple-touch sessions over 2 weeks.

MEASUREMENTS: Primary outcomes were immediate (Memorial Pain Assessment Card, 0- to 10-point scale) and sustained (Brief Pain Inventory [BPI], 0- to 10-point scale) change in pain. Secondary outcomes were immediate change in mood (Memorial Pain Assessment Card) and 60-second heart and respiratory rates and sustained change in quality of life (McGill Quality of Life Questionnaire, 0- to 10-point scale), symptom distress (Memorial Symptom Assessment Scale, 0- to 4-point scale), and analgesic medication use (parenteral morphine equivalents [mg/d]). Immediate outcomes were obtained just before and after each treatment session. Sustained outcomes were obtained at baseline and weekly for 3 weeks.

RESULTS: 298 persons were included in the immediate outcome analysis and 348 in the sustained outcome analysis. A total of 82 persons did not receive any allocated study treatments (37 massage patients, 45 control participants). Both groups demonstrated immediate improvement in pain (massage, -1.87 points [95% CI, -2.07 to -1.67 points]; control, -0.97 point [CI, -1.18 to -0.76 points]) and mood (massage, 1.58 points [CI, 1.40 to 1.76 points]; control, 0.97 point [CI, 0.78 to 1.16 points]). Massage was superior for both immediate pain and mood (mean difference, 0.90 and 0.61 points, respectively; P < 0.001). No between-group mean differences occurred over time in sustained pain (BPI mean pain, 0.07 point [CI, -0.23 to 0.37 points]; BPI worst pain, -0.14 point [CI, -0.59 to 0.31 points]), quality of life (McGill Quality of Life Questionnaire overall, 0.08 point [CI, -0.37 to 0.53 points]), symptom distress (Memorial Symptom Assessment Scale global distress index, -0.002 point [CI, -0.12 to 0.12 points]), or analgesic medication use (parenteral morphine equivalents, -0.10 mg/d [CI, -0.25 to 0.05 mg/d]).

LIMITATIONS: The immediate outcome measures were obtained by unblinded study therapists, possibly leading to reporting bias and the overestimation of a beneficial effect. The generalizability to all patients with advanced cancer is uncertain. The differential beneficial effect of massage therapy over simple touch is not conclusive without a usual care control group.

CONCLUSION: Massage may have immediately beneficial effects on pain and mood among patients with advanced cancer. Given the lack of sustained effects and the observed improvements in both study groups, the potential benefits of attention and simple touch should also be considered in this patient population.

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