The document summarizes a literature review and field research on telemonitoring by Flemish general practitioners. It examines telemonitoring for arterial hypertension, heart failure, and diabetes mellitus. For arterial hypertension, meta-analyses show telemonitoring improves systolic blood pressure by 4-5 mmHg and diastolic blood pressure by 1.5-2.5 mmHg. Telemonitoring may also allow for more timely medication changes. However, its impact on hard clinical endpoints like mortality remains unclear. The literature review on heart failure and diabetes is still ongoing.