Interestingly, typing „frequent follow-up“ into Google leads to 179 million results. The first ten pages with ten results each all refer to healthcare:
Long-Term Follow-up of Asymptomatic Healthy Subjects. Frequent follow-up as data gathering and continued care. Colonoscopy Overuse A Result Of Frequent Follow-Up. Follow-up see eMedicineHealth. Is There a Benefit of Frequent CT Follow-up After EVAR?
The term follow-up in the medical space is about: care; staying on top of a problem; remaining proactive; constant monitoring; reacting to a changing situation.