Heart rhythm and blood flow changes during pregnancy and after birth

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an observational study that uses non-invasive measurements of heart rate variability (HRV) and blood pressure to document cardiovascular and autonomic changes during pregnancy and after delivery. Participants are enrolled from the third month of gestation and followed through the postpartum period with periodic monitoring visits. The study will correlate HRV measures with hemodynamic data to characterize normal adaptation and to explore patterns linked to complications. No experimental treatments are given; the focus is on measurement and pattern recognition.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Over 18 years of age
* Pregnancy from the third month of gestation
* No pre-existing cardiovascular disease
* Good cognitive level
* Sign informed consent

Exclusion Criteria:

* Diabetes mellitus
* Hyperthyroidism
* Hypothyroidism
* Chronic hypertension diagnosed before pregnancy
* Heart failure
* Ischemic heart disease or malignant ventricular arrhythmias (ventricular fibrillation, ventricular tachycardia, grade 2 or 3 AV block, atrial fibrillation in patients with Wolff-Parkinson- White syndrome, paroxysmal fibrillation or flutter with rapid ventricular response and hemodynamic deterioration, uncontrolled supraventricular tachycardia)
* Exercise-induced ischaemia
* Unstable angina
* Disease not susceptible to revascularization
* Associated valvular heart disease
* Chronic kidney disease
* Degenerative neurological condition
* Brain aneurysms
* Arteriovenous malformations
* History of transient cerebral infarction (ICTUS)
* Migraines diagnosed
* Epilepsy
* Brain or spinal cord injury
* Tumors
* Diseases of the respiratory tract
* Diseases of lung tissue
* Diseases of pulmonary circulation

Where it's running

• Hospital Alvaro Cunqueiro
  Vigo, Pontevedra, Spain Recruiting

Study contacts

• Principal investigator: Alicia González Represas — Instituto de Investigación Sanitaria Galicia Sur (IISGS)
• Study coordinator: Alicia González Represas
• Email: alicia@uvigo.gal
• Phone: 616044977

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.