Table 3 Clinical and Laboratory Characteristics above and below the median for Relative Wall Thickness (RWT).

From: Predictors of Mortality in Light Chain Cardiac Amyloidosis with Heart Failure

 

RWT ≥0.74

RWT <0.74

P values

Age (years)

62 ± 10.1

61 ± 9.9

0.474

Sex: Male (%) Female (%)

47 (59.5%) 32 (40.5%)

50 (64%) 28 (35.9%)

0.552

Race: White (%)

55 (72.4%)

64 (83.1%)

0.081

Systolic blood pressure (mmHg)

113.4 ± 21.86

110.6 ± 14.47

0.339

Diastolic blood pressure (mmHg)

73.7 ± 10.22

71.9 ± 9.0

0.260

Pulse rate, beats/min

84.9 ± 16.9

81.9 ± 13.8

0.238

Body mass index (kg/m2)

25.4 ± 3.9

26.0 ± 5.5

0.411

Hypertension (%)

15 (19%)

18 (23.1%)

0.529

Diabetes mellitus (%)

3 (3.8%)

5 (6.4%)

0.697

Coronary artery disease (%)

9 (11.4%)

20 (26%)

0.019*

Atrial fibrillation (%)

20 (25.3%)

20 (26%)

0.925

Lambda light chain (%)

63 (80.8%)

70 (89.7%)

0.114

Kidney involvement (%)

33 (41.8)

26 (33.8%)

0.303

NYHA class

3 (1–4)

2.5 (2–3.5)

0.059

NYHA class 3/4

44 (55.7%)

32 (41%)

0.066

QRS duration (ms) on EKG

97.4 ± 25.86

101.9 ± 25.15

0.275

Medication Use:

Aldactone (%)

19 (24.1%)

16 (20.5%)

0.594

Loop diuretic (%)

67 (84.8%)

63 (81.8%)

0.616

Thiazide diuretic (%)

8 (10.1%)

11 (14.3%)

0.427

Beta blocker (%)

29 (36.7%)

34 (43.6%)

0.379

ACE-I/ARB (%)

15 (19%)

15 (19.2%)

0.969

Anticoagulants (%)

15 (19%)

25 (32.1%)

0.060

Laboratory Data:

BNP (pg/mL)

739 (372–1368)

556 (241–972)

0.107

Troponin I (ng/mL)

0.57 ± 1.39

0.22 ± 0.33

0.089

Creatinine kinase (U/L)

135 ± 20.3

103 ± 9

0.161

C-reactive protein (mg/L)

6.53 ± 7.43

8.68 ± 14.15

0.244

Hemoglobin (g/dl)

13.61 ± 1.72

13.04 ± 1.65

0.035*

Sodium (mmol/L)

138.5 ± 3.9

138.7 ± 3.6

0.729

MDRD eGFR (ml/min/1.73 m2)

67.9 ± 24.8

66.9 ± 21.7

0.792

Uric acid (mg/dl)

7.99 ± 2.49

7.56 ± 2.52

0.297

Alkaline phosphatase (U/L)

131.5 ± 77.1

142.7 ± 95.4

0.431

Free kappa light chains (mg/L)

163.7 ± 478.3

63.45 ± 228.7

0.096

Free lambda light chains (mg/L)

401.3 ± 475.7

378.2 ± 522.5

0.773

Free light chains kappa/lambda ratio

15.51 ± 52.79

7.42 ± 31.72

0.247

dFLC (mg/L)

536.8 ± 581.4

418.5 ± 535.0

0.188

  1. Data are expressed as mean ± SD or median (range) for continuous variables or numbers (%) for categorical variables. Median (IQR range). AL indicates immunoglobulin light chain amyloidosis; NYHA, New York Heart Association; EKG, electrocardiogram; MDRD eGFR, glomerular filtration rate by Modification of Diet in Renal Disease equation; BNP, brain natriuretic peptide; ACE-I, angiotensin converting enzyme-inhibitor; ARB, angiotensin receptor blocker; dFLC, difference between involved and uninvolved light chains; EKG, electrocardiogram. Anticoagulants include warfarin and non-vitamin K antagonist oral anticoagulants.