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. 2016 Jul 29;7:320. doi: 10.3389/fphys.2016.00320

Table 4.

The change in human renal hemodynamics after long-term treatment for essential hypertension using diuretics.

Diuretics
Drug References RBF/RPF Pglom GFR FF RVR Duration (weeks) Participant number
Hydrochlorothiazide Van Brummelen et al., 1979 = = = graphic file with name fphys-07-00320-i0001.jpg 36 10 (males)
O'Connor et al., 1981;Warren et al., 1981 = = = graphic file with name fphys-07-00320-i0001.jpg 4 19 (males)
Scaglione et al., 1992 = = = graphic file with name fphys-07-00320-i0001.jpg 8 13
Chlorothiazide Loon et al., 1989 = = = 4 9
Furosemide Olshan et al., 1981;Warren et al., 1981 = = = = 4 12
Spironolactone Falch et al., 1979a = 12 10
Matthesen et al., 2013 = 4 23
Furosemide and spironolactone Loon et al., 1989 = = = 4 6
Amiloride Matthesen et al., 2013 = 4 23
Indapamide Pickkers et al., 1998 graphic file with name fphys-07-00320-i0001.jpg graphic file with name fphys-07-00320-i0001.jpg = 6 11

RBF/RPF, renal blood flow/renal plasma flow; GFR, glomerular filtration rate; FF, filtration fraction; RVR, renal vascular resistance; Inline graphic, significant decrease from control; Inline graphic, significant increase from control; =, no significant change from control.

An apparently anomalous result, given that for individual subjects RVR = MAP/RBF, MAP falls significantly, and yet neither RBF nor RVR are found to change significantly; the discrepancy arises from the statistical distribution within the study group.