Table 5.

Studies Evaluating Preoperative Predictive Factors of Persistent Hypertension^*

Study	Method	n	% Cured of Hypertension	Hypertension Duration	Age	Sex	Histology	Response to Spironolactone	Family History
Obara36	Open	63	62	−ve	+ve	+ve	+ve	NA	−ve
Celen32	Open	42	60	+ve	+ve	−ve	+ve	+ve	−ve
Siren30	Open	29	41	+ve	NA	NA	NA	NA	NA
Proye31	Open	100	56	+ve	+ve	−ve	−ve	+ve	+ve
Simon34	Open	13	54	+ve	−ve	−ve	NA	NA	NA
Lo6	Open	44	77	−ve	+ve	−ve	NA	+ve	NA
Rossi25	Lap	30	67	+ve	−ve	−ve	NA	NA	NA

^*NA = Data not available.