NP-59 SPECT/CT Imaging in Stage 1 Hypertensive and Atypical Primary Aldosteronism: A 5-Year Retrospective Analysis of Clinicolaboratory and Imaging Features
Table 2
Qualitative analysis by HTN stage ().
Characteristics
All ()
Stage 1 HTN ()
Stage 2 HTN ()
Class of antihypertensives
≧3
3 (27)
0 (0)
3 (100)
<3
8 (73)
8 (100)
0 (0)
PAC
Elevated
7 (64)
5 (63)
2 (67)
Normal
4 (36)
3 (37)
1 (33)
PRA
Suppressed
2 (18)
2 (25)
0 (0)
Nonsuppressed
9 (82)
6 (75)
3 (100)
ARR
Elevated
5 (45)
3 (37)
2 (67)
Normal
6 (55)
5 (63)
1 (33)
Serum K (mEq/L)
Normal (>3.5)
5 (46)
4 (50)
1 (33)
3 ≦ Serum K < 3.5
3 (27)
3 (38)
0 (0)
2 ≦ Serum K < 3
3 (27)
1 (12)
2 (67)
Presentations
Clinical
4 (36)
Stage 2 HTN + 2 ≦ Serum K < 3
—
2 (cases 14, 16)
Stage 2 HTN + Serum K > 3.5
—
1 (case 22)
Stage 1 HTN + 2 ≦ Serum K < 3
1 (case 18)
—
Subclinical
7 (64)
Stage 1 HTN + 3 ≦ Serum K < 3.5
3 (cases 12, 20, 21)
—
Stage 1 HTN + Serum K > 3.5
4 (cases 13, 15, 17, 19)
—
Confirmatory testing
Positive
1 (9)
1 (12)
0 (0)
Negative
7 (64)
5 (63)
2 (67)
Not done
3 (27)
2 (25)
1 (33)
CT lesion
Positive (nodule)
7 (64)
6 (75)
1 (33)
Adrenal puffiness
2 (18)
0 (0)
2 (67)
Negative
2 (18)
2 (25)
0 (0)
NP-59 Planar
Positive
4 (36)
4 (50)
0 (0)
Faint
1 (9)
1 (12)
0 (0)
Negative
6 (55)
3 (38)
3 (100)
NP-59 SPECT/CT
Positive
11 (100)
8 (100)
3 (100)
Abbreviations are the same as Table 1. Data are expressed as number (percentage).