Could a spike in blood pressure reveal the onslaught of afib?

A New Zealand afibber was getting afib about every 4 days. He purchased a Kardia ECG tester and took reading along with his blood pressure several times a day, and revealed a correlation between his blood pressure and his arrhythmia, he notice a spike in blood pressure a couple of days before Afib.
He told his cardiologist who suggested he half his blood pressure meds, but double them when he saw the spike reading for a few days, which he did.
He has been free of afib for 6 months.

Has anyone else noticed a correlation between blood pressure and arrhythmia?

Yes. My EP has always been a firm believer that hypertension is a major contributor to afib and wants all his patients under 130/80. I had what was known at the time as pre-hypertension with readings often in the 140-150 range. He put me on BP meds and I quickly noticed a reduction in the episodes I experienced. With what I know now about atrial stretch and afib, I'm also a firm believer that everyone with afib should keep their BP in the range recommended by the SPRINT trial.