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Neuromuskuläre Elektrische Stimulation zur Behandlung von Muskelschwäche für Erwachsene mit Krankheiten im fortgeschrittenen Stadium

Appendices

Appendix 1. Search strategies

2016 search strategies

CENTRAL, DARE & CDSR (the Cochrane Library)

#1 MeSH descriptor: [Electric Stimulation Therapy] explode all trees

#2 ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*):ti,ab,kw (Word variations have been searched)

#3 NMES:ti,ab,kw (Word variations have been searched)

#4 #1 or #2 or #3

#5 MeSH descriptor: [Muscle Weakness] this term only

#6 ((muscle* or muscular) and (weak* or fatigue or strength)):ti,ab,kw (Word variations have been searched)

#7 #5 or #6

#8 (advance* near/6 (disease* or illness*)):ti,ab,kw (Word variations have been searched)

#9 MeSH descriptor: [Neoplasms] explode all trees

#10 (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*):ti,ab,kw (Word variations have been searched)

#11 MeSH descriptor: [Pulmonary Disease, Chronic Obstructive] explode all trees

#12 (chronic and obstruct* and (pulmonary or airway* or airflow or lung*)):ti,ab,kw (Word variations have been searched)

#13 COPD:ti,ab,kw (Word variations have been searched)

#14 ((pulmonary or respiratory) near/6 disease*):ti,ab,kw (Word variations have been searched)

#15 MeSH descriptor: [Heart Diseases] explode all trees

#16 (((cardi* or heart) near/6 (disease* or failure)) or CHF):ti,ab,kw (Word variations have been searched)

#17 MeSH descriptor: [HIV] explode all trees

#18 human immunodeficiency virus*:ti,ab,kw (Word variations have been searched)

#19 human immuno‐deficiency virus*:ti,ab,kw (Word variations have been searched)

#20 acquired immunodeficiency syndrome*:ti,ab,kw (Word variations have been searched)

#21 acquired immuno‐deficiency syndrome*:ti,ab,kw (Word variations have been searched)

#22 (HIV or AIDS):ti,ab,kw (Word variations have been searched)

#23 (#8 or #9 or #10 or #11 or #12 or #13 or #14 or #15 or #16 or #17 or #18 or #19 or #20 or #21 or #22)

#24 (#4 and #7 and #23)

MEDLINE (OVID)

1 exp Electric Stimulation Therapy/

2 ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*).mp.

3 NMES.mp.

4 or/1‐3

5 Muscle Weakness/

6 ((muscle* or muscular) and (weak* or fatigue or strength)).mp.

7 5 or 6

8 (advance* adj6 (disease* or illness*)).mp.

9 exp neoplasms/

10 (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*).mp.

11 exp Pulmonary Disease, Chronic Obstructive/

12 (chronic and obstruct* and (pulmonary or airway* or airflow or lung*)).mp.

13 COPD.mp.

14 ((pulmonary or respiratory) adj6 disease*).mp.

15 exp heart diseases/

16 (((cardi* or heart) adj6 (disease* or failure)) or CHF).mp.

17 exp HIV/

18 human immunodeficiency virus*.mp.

19 human immuno‐deficiency virus*.mp.

20 acquired immunodeficiency syndrome*.mp.

21 acquired immuno‐deficiency syndrome*.mp.

22 (HIV or AIDS).mp.

23 or/8‐22

24 4 and 7 and 23

25 (201207* or 201208* or 201209* or 201210* or 201211* or 201212* or 2013* or 2014* or 2015* or 2016*).ed.

26 24 and 25

Embase (OVID)

1 neuromuscular electrical stimulation/

2 ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*).mp.

3 NMES.mp.

4 or/1‐3

5 exp Muscle Weakness/

6 ((muscle* or muscular) and (weak* or fatigue or strength)).mp.

7 5 or 6

8 (advance* adj6 (disease* or illness*)).mp.

9 exp neoplasm/

10 (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*).mp.

11 chronic obstructive lung disease/

12 (chronic and obstruct* and (pulmonary or airway* or airflow or lung*)).mp.

13 COPD.mp.

14 ((pulmonary or respiratory) adj6 disease*).mp.

15 exp heart disease/

16 (((cardi* or heart) adj6 (disease* or failure)) or CHF).mp.

17 exp Human immunodeficiency virus/

18 human immunodeficiency virus*.mp.

19 human immuno‐deficiency virus*.mp.

20 acquired immunodeficiency syndrome*.mp.

21 acquired immuno‐deficiency syndrome*.mp.

22 (HIV or AIDS).mp.

23 or/8‐22

24 4 and 7 and 23

25 (201207* or 201208* or 201209* or 201210* or 201211* or 201212* or 2013* or 2014* or 2015* or 2016*).dd.

26 24 and 25

27 random$.tw.

28 factorial$.tw.

29 crossover$.tw.

30 cross over$.tw.

31 cross‐over$.tw.

32 placebo$.tw.

33 (doubl$ adj blind$).tw.

34 (singl$ adj blind$).tw.

35 assign$.tw.

36 allocat$.tw.

37 volunteer$.tw.

38 Crossover Procedure/

39 double‐blind procedure.tw.

40 Randomized Controlled Trial/

41 Single Blind Procedure/

42 or/27‐41

43 (animal/ or nonhuman/) not human/

44 42 not 43

45 26 and 44

PsycINFO (OVID)

1 ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*).mp.

2 NMES.mp.

3 ((muscle* or muscular) and (weak* or fatigue or strength)).mp.

4 (advance* adj6 (disease* or illness*)).mp.

5 exp neoplasm/

6 (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*).mp.

7 chronic obstructive pulmonary disease/

8 (chronic and obstruct* and (pulmonary or airway* or airflow or lung*)).mp.

9 COPD.mp.

10 ((pulmonary or respiratory) adj6 disease*).mp.

11 exp heart disorders/

12 (((cardi* or heart) adj6 (disease* or failure)) or CHF).mp.

13 exp Human immunodeficiency virus/

14 human immunodeficiency virus*.mp.

15 human immuno‐deficiency virus*.mp.

16 acquired immunodeficiency syndrome*.mp.

17 acquired immuno‐deficiency syndrome*.mp.

18 (HIV or AIDS).mp.

19 or/4‐18

20 1 or 2

21 3 and 19 and 20

22 limit 21 to yr="2012 ‐Current"

CINAHL (EBSCO)

S26 S24 AND S25

S25 EM 20120701‐20150131

S24 S4 AND S7 AND S23

S23 S8 OR S9 OR S10 OR S11 OR S12 OR S13 OR S14 OR S15 OR S16 OR S17 OR S18 OR S19 OR S20 OR S21 OR S22

S22 (HIV or AIDS)

S21 acquired immuno‐deficiency syndrome*

S20 acquired immunodeficiency syndrome*

S19 human immuno‐deficiency virus*

S18 human immunodeficiency virus*

S17 (MH "Human Immunodeficiency Virus+")

S16 (((cardi* or heart) N6 (disease* or failure)) or CHF)

S15 (MH "Heart Diseases+")

S14 ((pulmonary or respiratory) N6 disease*)

S13 COPD

S12 (chronic and obstruct* and (pulmonary or airway* or airflow or lung*))

S11 (MH "Pulmonary Disease, Chronic Obstructive+")

S10 (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or

leukemia* or leukaemia*)

S9 (MH "Neoplasms+")

S8 (advance* N6 (disease* or illness*))

S7 S5 OR S6

S6 ((muscle* or muscular) and (weak* or fatigue or strength))

S5 (MH "Muscle Weakness")

S4 S1 OR S2 OR S3

S3 NMES

S2 ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*)

S1 (MH "Electric Stimulation+")

2012 search strategies

MEDLINE, CINAHL, EMBASE, and PsycINFO (Ovid Web)

1.   exp Electric Stimulation Therapy/

2.  ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*).mp.

3.   NMES.mp.

4.   1 or 2 or 3

5.   Muscle Weakness/

6.   ((muscle* or muscular) and (weak* or fatigue or strength)).mp.

7.   5 or 6

8.   (advance* adj6 (disease* or illness*)).mp.

9.   exp neoplasms/

10. (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*).mp.

11. exp Pulmonary Disease, Chronic Obstructive/

12. (chronic and obstruct* and (pulmonary or airway* or airflow or lung*)).mp.

13. COPD.mp.

14. ((pulmonary or respiratory) adj6 disease*).mp.

15. exp heart diseases/

16. (((cardi* or heart) adj6 (disease* or failure)) or CHF).mp.

17. exp HIV/

18. human immunodeficiency virus*.mp.

19. human immuno‐deficiency virus*.mp.

20. acquired immunodeficiency syndrome*.mp.

21. acquired immuno‐deficiency syndrome*.mp.

22. (HIV or AIDS).mp.

23. 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22

24. 4 and 7 and 23

British Nursing Index (ProQuest)

1. NMES

2. muscle stimulation

3. neuromuscular electrical stimulation

4. (1 or 2 or 3)

Science Citation Index Expanded (Web of Science)

1. ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*). ti.

2. NMES. ti.

3. 1 or 2

4. (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*). ti.

5. ((chronic and obstruct* and (pulmonary or airway* or airflow or lung*)) or COPD). ti.

6. (((cardi* or heart) adj6 (disease* or failure)) or CHF). ti.

7. (human immunodeficiency virus* or HIV or AIDS). ti.

8. 4 or 5 or 6 or 7

9. 3 and 8

The Cochrane Library (Wiley Online Library)

1. ELECTRIC STIMULATION THERAPY single term (MeSH)

2. RESISTANCE TRAINING single term (MeSH)

3. ((muscle* or muscular or neuromuscular or neuro‐muscular) and electric* and stimulat*).ti.

4. (cancer* or neoplas* or malignan* or carcinoma* or tumor* or tumour* or metasta* or adenocarcinoma* or lymphoma* or leukemia* or leukaemia*)

5. (COPD or chronic and obstruct* and (pulmonary or airway* or airflow or lung*))

6. (((cardi* or heart) adj6 (disease* or failure)) or CHF)

7. HIV or human immunodeficiency virus*

8. 3 and (4 or 5 or 6 or 7)

key: [mp = protocol supplementary concept, rare disease supplementary concept, title, original title, abstract, name of substance word, subject heading word, unique identifier] [ti = title].

Study flow diagram.
Figuras y tablas -
Figure 1

Study flow diagram.

'Risk of bias' graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
Figuras y tablas -
Figure 2

'Risk of bias' graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

'Risk of bias' summary: review authors' judgements about each risk of bias item for each included study.
Figuras y tablas -
Figure 3

'Risk of bias' summary: review authors' judgements about each risk of bias item for each included study.

Forest plot of quadriceps muscle strength for NMES versus control.
Figuras y tablas -
Figure 4

Forest plot of quadriceps muscle strength for NMES versus control.

Forest plot of muscle mass for NMES versus control.
Figuras y tablas -
Figure 5

Forest plot of muscle mass for NMES versus control.

Forest plot of exercise performance for NMES versus control.
Figuras y tablas -
Figure 6

Forest plot of exercise performance for NMES versus control.

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 1 Quadriceps muscle strength.
Figuras y tablas -
Analysis 1.1

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 1 Quadriceps muscle strength.

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 2 Muscle mass.
Figuras y tablas -
Analysis 1.2

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 2 Muscle mass.

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 3 Exercise performance.
Figuras y tablas -
Analysis 1.3

Comparison 1 Neuromuscular electrical stimulation versus control, Outcome 3 Exercise performance.

Summary of findings for the main comparison. Neuromuscular electrical stimulation (NMES) versus control for adults with advanced disease for muscle weakness

NMES for adults with advanced disease for muscle weakness

Patient or population: adults with advanced disease for muscle weakness
Settings: hospital, community, or home settings
Intervention: NMES

Control: no intervention (7 studies), placebo NMES (8 studies), or resistance training (1 study)

Outcomes

Illustrative comparative risks* (95% CI)

No of Participants
(studies)

Quality of the evidence
(GRADE)

Assumed risk

Corresponding risk

Control

NMES

Quadriceps muscle strength
Handheld or fixed dynamometry
Follow‐up: median 6 weeks

The mean change was 0.43 standard deviations from baseline.

The mean change in the intervention groups was 0.53 standard deviations higher (ranging from 0.19 to 0.87 standard deviations higher).

781
(12 studies)

⊕⊕⊝⊝
low1,2

Safety
Serious adverse events
Follow‐up: median 6 weeks

No serious adverse events related to control interventions reported.

No serious adverse events related to NMES reported.

933
(18 studies)

⊕⊕⊕⊝
moderate3

Safety

Adverse events: Muscle discomfort
Follow‐up: median 6 weeks

0/415 (0%) participants reported muscle discomfort following control interventions.

19/518 (3.7%) participants reported muscle discomfort following NMES.

933

(18 studies)

⊕⊕⊕⊝
moderate3

Muscle mass
Anthropometry, DEXA, ultrasound, computed tomography
Follow‐up: 4 to 9 weeks

The mean change in muscle mass ranged from 0.04 to 0.49 standard deviations from baseline across the different assessment modalities used.

The mean change in muscle mass ranged from 0.09 to 1.01 standard deviations higher across the different assessment modalities used.

314
(8 studies)

⊕⊝⊝⊝
very low4,5,6,7

Exercise performance ‐ walking distance
6MWT, ISWT, ESWT
Follow‐up: median 6 weeks

The mean change in distance walked was 21, 36, and 37 metres from baseline across the different walking tests used.

The mean change in distance walked was 35, 9, and 64 metres further across the different walking tests used.

788
(13 studies)

⊕⊝⊝⊝
very low2,7,8,9

Exercise performance ‐ peak oxygen uptake
Follow‐up: median 6 weeks

The mean change in peak oxygen uptake was ‐0.4 mL/min from baseline.

The mean exercise performance ‐ peak oxygen uptake in the intervention groups was 44.8 mL/min higher (95% CI 7.3 lower to 97.0 higher)

109
(4 studies)

⊕⊕⊝⊝
low7,9

*The basis for the assumed risk is the mean change from baseline in the control groups. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
6MWT: 6‐minute walk test; CI: confidence interval; DEXA: dual energy X‐ray absorptiometry; ESWT: endurance shuttle walk test; ISWT: incremental shuttle walk test

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1Downgraded once: the lower 95% CI for the estimate of effect was below what would be considered a small effect (standardised mean difference 0.2).
2Downgraded once: statistical tests indicated a high degree of heterogeneity; I2 values > 0.5.
3Downgraded once: small population size and limitations in reporting of safety data collection.
4Downgraded once: the estimate of effect for this outcome was inconsistent across different assessment modalities.
5Downgraded once: either study participants or outcome assessors were not blinded, but the outcome being assessed was non‐volitional.
6Downgraded once: findings derived from computed tomography were from a single study.
7Downgraded once: wide variance of point estimates, and inconsistency regarding the direction of an effect or whether or not there is an effect.
8Downgraded once: the lower 95% CI for the effect estimate for the 6MWT was below the established minimally important difference.
9Downgraded once: either study participants or outcome assessors were not blinded, and the outcome being assessed was volitional.

Figuras y tablas -
Summary of findings for the main comparison. Neuromuscular electrical stimulation (NMES) versus control for adults with advanced disease for muscle weakness
Comparison 1. Neuromuscular electrical stimulation versus control

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Quadriceps muscle strength Show forest plot

12

781

Std. Mean Difference (IV, Random, 95% CI)

0.53 [0.19, 0.87]

2 Muscle mass Show forest plot

8

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Anthropometry

2

31

Std. Mean Difference (IV, Random, 95% CI)

0.69 [‐0.05, 1.42]

2.2 Dual energy X‐ray absorptiometry (DEXA)

3

179

Std. Mean Difference (IV, Random, 95% CI)

0.09 [‐0.20, 0.38]

2.3 Ultrasound

1

52

Std. Mean Difference (IV, Random, 95% CI)

0.82 [0.26, 1.39]

2.4 Computed tomography

2

52

Std. Mean Difference (IV, Random, 95% CI)

1.01 [0.42, 1.60]

3 Exercise performance Show forest plot

13

Mean Difference (IV, Random, 95% CI)

Subtotals only

3.1 6‐minute walk test (m) (6MWT)

7

317

Mean Difference (IV, Random, 95% CI)

34.78 [13.52, 56.05]

3.2 Incremental shuttle walk test (m) (ISWT)

3

434

Mean Difference (IV, Random, 95% CI)

8.72 [‐34.87, 52.31]

3.3 Endurance shuttle walk test (m) (ESWT)

4

452

Mean Difference (IV, Random, 95% CI)

64.13 [‐17.79, 146.05]

3.4 Cardiopulmonary exercise testing (mL/min) (CPET)

4

109

Mean Difference (IV, Random, 95% CI)

44.82 [‐7.34, 96.99]

Figuras y tablas -
Comparison 1. Neuromuscular electrical stimulation versus control