Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Phase II Randomised Study of Nasal Oxygen Treatment for Pain Relief During Percutaneous Coronary Interventions
Brief Summary: Nasal oxygen is widely used as pain relief against ischemic pain during Percutaneous Coronary Intervention (PCI). However, to our knowledge no randomised clinical trials have tested this. In contrast, oxygen causes coronary artery vasoconstriction in man. Furthermore, a recent Cochrane meta-analysis has shown no evidence of beneficial effect of oxygen for patients with acute myocardial infarction (with normal blood saturation. The investigators therefore wanted to examine if oxygen reduces ischemic pain during PCI for stable angina or NSTEMI.


Options:
A: Arm Label: normoxia and isotonic saline; Type: PLACEBO_COMPARATOR; Interventions: Drug: oxygen and saline | Arm Label: normoxia and 3% hypertonic saline; Type: ACTIVE_COMPARATOR; Interventions: Drug: oxygen and saline | Arm Label: hyperoxia and isotonic saline; Type: ACTIVE_COMPARATOR; Interventions: Drug: oxygen and saline | Arm Label: hyperoxia and 3% hypertonic saline; Type: ACTIVE_COMPARATOR; Interventions: Drug: oxygen and saline | Intervention Type: DRUG; Name: oxygen and saline; Assigned to Arm(s): hyperoxia and 3% hypertonic saline, hyperoxia and isotonic saline, normoxia and 3% hypertonic saline, normoxia and isotonic saline
B: Arm Label: Oxygen therapy; Type: OTHER; Interventions: Other: Oxygen therapy | Arm Label: No oxygen therapy; Type: OTHER; Interventions: Other: No oxygen therapy | Intervention Type: OTHER; Name: Oxygen therapy; Assigned to Arm(s): Oxygen therapy | Intervention Type: OTHER; Name: No oxygen therapy; Assigned to Arm(s): No oxygen therapy
C: Arm Label: Nasal oxygen; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nasal oxygen | Arm Label: Nasal Air; Type: PLACEBO_COMPARATOR; Interventions: Drug: Regular nasal air | Intervention Type: DRUG; Name: Nasal oxygen; Assigned to Arm(s): Nasal oxygen | Intervention Type: DRUG; Name: Regular nasal air; Assigned to Arm(s): Nasal Air
D: Arm Label: Group 1; Type: ACTIVE_COMPARATOR; Interventions: Other: Low normal PaCO2, Other: Low normal PaO2, Other: Low normal MAP | Arm Label: Group 2; Type: ACTIVE_COMPARATOR; Interventions: Other: High normal PaCO2, Other: Low normal PaO2, Other: Low normal MAP | Arm Label: Group 3; Type: ACTIVE_COMPARATOR; Interventions: Other: Low normal PaCO2, Other: High normal PaO2, Other: Low normal MAP | Arm Label: Group 4; Type: ACTIVE_COMPARATOR; Interventions: Other: High normal PaCO2, Other: High normal PaO2, Other: Low normal MAP | Arm Label: Group 5; Type: ACTIVE_COMPARATOR; Interventions: Other: Low normal PaCO2, Other: Low normal PaO2, Other: High normal MAP | Arm Label: Group 6; Type: ACTIVE_COMPARATOR; Interventions: Other: High normal PaCO2, Other: Low normal PaO2, Other: High normal MAP | Arm Label: Group 7; Type: ACTIVE_COMPARATOR; Interventions: Other: Low normal PaCO2, Other: High normal PaO2, Other: High normal MAP | Arm Label: Group 8; Type: ACTIVE_COMPARATOR; Interventions: Other: High normal PaCO2, Other: High normal PaO2, Other: High normal MAP | Intervention Type: OTHER; Name: Low normal PaCO2; Assigned to Arm(s): Group 1, Group 3, Group 5, Group 7 | Intervention Type: OTHER; Name: High normal PaCO2; Assigned to Arm(s): Group 2, Group 4, Group 6, Group 8 | Intervention Type: OTHER; Name: Low normal PaO2; Assigned to Arm(s): Group 1, Group 2, Group 5, Group 6 | Intervention Type: OTHER; Name: High normal PaO2; Assigned to Arm(s): Group 3, Group 4, Group 7, Group 8 | Intervention Type: OTHER; Name: Low normal MAP; Assigned to Arm(s): Group 1, Group 2, Group 3, Group 4 | Intervention Type: OTHER; Name: High normal MAP; Assigned to Arm(s): Group 5, Group 6, Group 7, Group 8

Answer: C