Microvascular coronary artery disease. Angina with non-obstructive coronary arteries
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Angina and no obstructive coronary artery disease (ANOCA) (CCS class III or IV) o Vasospastic angina (VSA): FFR > 0.8, CFR >= 2.0, IMR = 90% diameter reduction, Angina pectoris & Ischaemic ECG changes. - Persisting angina pectoris despite optimal medical therapy (OMT) defined as: o VSA: Calcium channel blocker, long-acting nitrate and/or nicorandil. In the maximum tolerated dose. If the patient is currently not using one of the medications due to side-effects, this should be clearly stated. - Age > 18 years
Exclusion criteria
Exclusion criteria: - Both endotypes (VSA and MVA) present based on CFT findings. - Inability to give informed consent - The presence of a cardiac implanted electronic device (CIED) o Pacemaker o Implantable Cardiac Defibrillator (ICD) Due to the risk of interference between TENS and CIED - Presence of a spinal cord stimulator for another indication such as complex regional pain syndrome, failed back surgery syndrome, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in the summary score of the Seattle Angina Questionnaire (SS SAQ) after 1 month treatment with TENS, compared to baseline. | — |
Secondary
| Measure | Time frame |
|---|---|
| Effect of TENS treatment in patients with ANOCA on: - Individual domains of the Seattle Angina Questionnaire; o Physical Limitations; o Angina Frequency; o Angina Stability; o Treatment Satisfaction; o Quality of Life. - Grading of angina pectoris using the Canadian Cardiovascular Society (CCS) class. - Side effects of TENS use (such as skin irritation, tenderness and/or TENS discomfort). The secondary objectives will be evaluated after the patient has received one month of TENS treatment. | — |
Countries
Netherlands
Contacts
Catharina Ziekenhuis