Table 1 Clinical Characteristics, Laboratory and Echocardiographic Parameters at Initial Visit to the Amyloidosis Center.

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

 

Value (n = 165)

Median (IQR range)

Normal values

Age (years)

61.6 ± 9.5

61 (55–69)

 

Sex: Male (%)/Female (%)

100 (61%)/65 (49%)

  

Race: White (%)

126 (76.4%)

  

Systolic blood pressure (mmHg)

112.0 ± 18.6

108.5 (101–122)

 

Diastolic blood pressure (mmHg)

73.0 ± 9.9

72 (67–79)

 

Pulse rate, beats/min

84.0 ± 15.2

83 (73–94)

 

Body Mass Index (kg/m2)

25.8 ± 4.6

25.5 (23.0–28.0)

 

Hypertension (%)

37 (22.4%)

  

Diabetes Mellitus (%)

10 (6.0%)

  

Coronary Artery Disease (%)

29 (17.6%)

  

Atrial Fibrillation (%)

41 (24.8%)

  

Lambda Light Chain (%)

139 (84.2%)

  

Kidney Involvement (%)

60 (36.40%)

  

NYHA Class

2.7 ± 0.6

2.5 (2.0–3.0)

 

NYHA Class 3/4

80 (48.50%)

  

ACC/AHA Stage C/D (%)

165 (100%)

  

QRS duration (ms) on EKG

99.0 ± 24.5

93 (81–108)

 

Medication Use:

Aldactone (%)

37 (22.4%)

  

Loop Diuretic (%)

135 (81.2%)

  

Metolazone (%)

20 (12%)

  

Beta Blocker (%)

64 (38.8%)

  

ACE-I/ARB (%)

35 (21.2%)

  

Anticoagulants (%)

40 (24.2%)

  

Laboratory Data:

BNP (pg/mL)

980.4 ± 1035.1

654 (301–1208)

0–176

Troponin I (ng/mL)

0.4 ± 0.9

0.146 (0.067–0.333)

0–0.033

C-reactive protein (mg/L)

7.6 ± 12.2

4.0 (1.0–9.5)

0–5.0

Hemoglobin (g/dl)

13.4 ± 1.7

13.4 (12.1–14.5)

11.8–16.0

Sodium (mmol/L)

138.5 ± 4.0

139 (137–141)

135–145

MDRD eGFR (ml/min/1.73 m2)

67.4 ± 25.5

66 (53–82)

>60

Uric Acid (mg/dl)

7.8 ± 2.6

7.35 (5.73–9.45)

2.4–6.0

Alkaline Phosphatase (U/L)

137.3 ± 86.9

110 (82–166)

25–100

Lactate dehydrogenase (U/L)

272.2 ± 76.3

259 (223.5–315.5)

171–308

Free kappa light chains (mg/L)

113.8 ± 372.8

11.2 (8.3–21.85)

3.3–19.4

Free lambda light chains (mg/L)

390.0 ± 500.4

243.0 (69.55–487.9)

5.7–26.3

Free light chains kappa/lambda ratio

11.24 ± 42.66

0.05 (0.02–0.18)

0.26–1.65

dFLC (mg/L)

478.1 ± 558.3

291.8 (119–552.6)

 

Echocardiographic parameters:

Left ventricular ejection fraction (%)

49.8 ± 11.6

50 (40–60)

≥50

Left atrium (mm)

40.2 ± 6.2

40 (36–44)

 

Intraventricular septum (mm)

14.9 ± 2.7

15 (13–16)

6–10

Posterior wall thickness (mm)

15.2 ± 3.0

15 (13–17)

6–10

Left ventricular end systolic diameter (mm)

30.0 ± 6.2

30.0 (26.5–34.0)

21–40

Left ventricular end diastolic diameter (mm)

40.0 ± 5.8

40 (36–44)

<57

Relative wall thickness

0.8 ± 0.2

0.74 (0.63–0.89)

0.22–0.42

Calculated LV mass (g)

240.3 ± 75.7

223.7 (191.7–271.8)

67–162

LV mass index (g/m2)

129.2 ± 35.4

124.2 (107.5–145.5)

50–115

  1. Data are expressed as mean ± SD for continuous variables or numbers or percent (%) for categorical variables. IQR, interquartile; AL indicates immunoglobulin light chain amyloidosis; NYHA, New York Heart Association; ECG, 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; ACC/AHA stage, American College of Cardiology/American Heart Association Classification of Heart Failure; dFLC, difference between involved and uninvolved light chains. EKG, electrocardiogram. Anticoagulants include warfarin and non-vitamin K antagonist oral anticoagulants. Normal values for echocardiography are as reported by the American Society of Echocardiography9.