What do systematic reviews say?

Transmyocardial laser revascularization vs medical treatment

Transmyocardial laser revascularization showed no clear difference in overall mortality compared with medical treatment (high certainty).

• Transmyocardial laser revascularization versus medical therapy for refractory angina 2015 · Cochrane Headline outcomes only
  OR 1.12 [0.77, 1.63]
  7 studies · 1053 participants
  High

Transmyocardial laser revascularization vs medical treatment

Transmyocardial laser revascularization showed no clear difference in early postoperative mortality Deaths in the 30 days after surgery compared with medical treatment (high certainty).

• Transmyocardial laser revascularization versus medical therapy for refractory angina 2015 · Cochrane Headline outcomes only
  OR 1.19 [0.63, 2.24]
  6 studies · 967 participants
  High

Transmyocardial laser revascularization vs medical treatment

• Transmyocardial laser revascularization versus medical therapy for refractory angina 2015 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 129 participants
  Moderate

Intervention not reported

The intervention may leads to lower death at any time (low certainty).

• Hyperbaric oxygen therapy for acute coronary syndrome 2015 · Cochrane Headline outcomes only
  RR 0.58 [0.36, 0.92]
  5 studies · 614 participants
  Low

Intervention not reported

• Hyperbaric oxygen therapy for acute coronary syndrome 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 84 participants
  Moderate

Intervention not reported

• Hyperbaric oxygen therapy for acute coronary syndrome 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 72 participants
  Moderate

Intervention not reported

• Hyperbaric oxygen therapy for acute coronary syndrome 2015 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 184 participants
  High

Intervention not reported

• Hyperbaric oxygen therapy for acute coronary syndrome 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 participants
  GRADE not reported

Intervention not reported

The intervention showed no clear difference in mortality (moderate certainty).

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  OR 1.8 [0.38, 8.54]
  2 studies · 300 participants
  Moderate

Intervention not reported

The intervention showed no clear difference in myocardial infarction ECG/cardiac enzymes (low certainty).

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  OR 0.48 [0.21, 1.13]
  7 studies · 901 participants
  Low

Intervention not reported

The intervention probably leads to lower atrial fibrillation ECG (moderate certainty).

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  OR 0.54 [0.43, 0.67]
  12 studies · 1765 participants
  Moderate

Intervention not reported

The intervention showed no clear difference in stroke (moderate certainty).

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  OR 0.7 [0.14, 3.63]
  2 studies · 264 participants
  Moderate

Intervention not reported

The intervention showed no clear difference in renal failure Serum creatinine/urea (moderate certainty).

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  OR 0.57 [0.3, 1.1]
  5 studies · 467 participants
  Moderate

Intervention not reported

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 721 participants
  Moderate

Intervention not reported

• Preoperative statin therapy for patients undergoing cardiac surgery 2015 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 1137 participants
  Moderate