Studies heart rate changes after blood removal in polycythemia patients
Measures heart rate with wearable devices around blood removal in adults with polycythemia.
Plain-language title generated from the registry record
Registry title: Effect of Phlebotomy on Heartrate in Polycythemia Patients
Key facts
- Where
- Leiden, NetherlandsSee the site
Where in Netherlands
- LUMCLeiden, NetherlandsTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Leiden University Medical Center
- Trial code
- NCT05396170
- Record updated
- 13 November 2024
- Original description
Single-centre, observational within-subject design: patients that undergo phlebotomies regularly for polycythemia will be measured continuously by wearables one week before until one week after a phlebotomy, for three phlebotomies.Read full original descriptionShow less
Phlebotomy in Blood Donors and Polycythemia Vera Patients- The Effect on Physiology: An Orienting Case-Cross Over Study
Single-centre, observational within-subject design: patients that undergo phlebotomies regularly for polycythemia will be measured continuously by wearables one week before until one week after a phlebotomy, for three phlebotomies.
Inclusion: Patients with polycythaemia, requiring phlebotomy on a regular basis (at least every 4 months); Subjects aged ≥18 years; In possession of a smartphone; Life expectancy ≥ 3 months.
Exclusion: Scheduled oncological treatments or surgery during the study period; Participants with known arrhythmias or other significant cardiological conductivity disorders (Paroxysmal atrial fibrillation is allowed); Poor performance/functional status (Eastern Cooperative Oncology Group system ECOG ≥3); Hospitalized subjects; Subjects with a pacemaker; Subjects with a secondary polyglobulia due to eg smoking or other pulmonary issues.