The only ways I know of for kidney blood flow to be impaired are from renal artery stenosis, other chronic kidney diseases or left renal vein compression. All of these can impact on the mechanisms of the renin-angiotensin-aldosterone system and it's this hormone system that then affects cardiac regulation.
CKD will have abnormal kidney pathology findings, the othe two will likely result in having an abdominal bruit (depending on degree of stenosis or compression) which any doctor can hear with a stethoscope or a portable doppler instrument that many practices have.
http://www.cvphysiology.com/Blood Pressure/BP023
https://www.ncbi.nlm.nih.gov/pubmed/11132998
