The hypothesis is that patients undergoing cardiac catheterization, in which the New Safety Checklist has been used, have fewer perioperative complications compared to patients in which the habitual practice has been used.

The aim of this study is to develop a New Safety Checklist in perioperative patients undergoing cardiac catheterization in interventional cardiology units and assess it impact on the incidence of perioperative complications compared to habitual practice.

The study will consist in two phases; the first phase: development of the New Safety Checklist, and the second phase will be a multicenter randomized clinical trial, a parallel two-arm corresponding to the use of the New Safety Checklist compared to the habitual practice in all patients undergoing cardiac catheterization in interventional cardiology units, according to the inclusion criteria..

The expected number of patients in this trial will be 6000. The principal outcome of this study will be: the incidence of perioperative complications. The secondary outcomes will be: socio-demographic data, clinical patient data and procedure type data. Data collection will be done through reviewing clinical history.

Inclusion Criteria:

• Adult patients (>18 years) undergoing cardiological intervention in hemodynamic units and interventionist cardiology.
• Patients who accept to participate in the study.

Exclusion Criteria:

• Patients undergoing urgent procedure.
• Patients requiring ventilatory support or in a situation of hemodynamic instability.
• Patients with cognitive impairment, mental disability or other serious difficulty in communication.
• Patients with insufficient fluidity of the main languages.