27 September 2024 : Clinical Research
Prognostic Value of Transthoracic Impedance Cardiography, Amino-Terminal Pro-B-Type Natriuretic Peptide Levels, The Six-Minute Walk Test, and Chest X-Ray in Elderly Patients with Chronic Heart Failure: A Comparative Study in Lithuania
Andrius Ališauskas
1ABCDEF*, Kornelija Dzikevičiūtė2CDEF, Urtė Rimšaitė2CDEF, Albinas Naudžiūnas 1ADEF, Haroldas Razvadauskas1DEF, Diana Zinkienė1DEF, Tomas Repečka1DEF, Jonas Jucevičius 1DEF, Saulius Sadauskas 1ACDEF
DOI: 10.12659/MSM.945647
Med Sci Monit 2024; 30:e945647
Table 1 Main characteristics of the studied sample.
| Variable | Median, (Q1–Q3) |
|---|---|
| Age (years) | 75 (70.0–83.5) |
| BMI (kg/m) | 29.70 (26.05–36.67) |
| RR (breaths/minute) | 16.00 (16.00–16.00) |
| SpO (%) | 94.00 (93.00–97.00) |
| Heart rate (bpm) | 75.00 (64.00–90.00) |
| sBP (mmHg) | 143.00 (118.00–167.00) |
| dBP (mmHg) | 81.00 (72.00–102.00) |
| NYHA class | 3 (3–3) |
| TFC (1/kΩ) | 39.90 (32.20–45.30) |
| TFCI (1/kΩ/m) | 17.60 (15.10–21.40) |
| SV (mL) | 72.00 (60.00–85.00) |
| SI (mL/m) | 33.00 (26.00–41.00) |
| CO (L/min) | 5.10 (4.60–6.50) |
| STR | 0.38 (0.37–0.43) |
| LVET (ms) | 271.00 (225.00–311.00) |
| PEP (ms) | 108.00 (86.00–121.00) |
| LCW (kg×m) | 6.40 (5.60–8.40) |
| LCWI (kg×m/m) | 3.30 (2.50–3.70) |
| 6MWD (m) | 278.00 (238.00–317.00) |
| LVEF (%) | 37.00 (23.00–52.00) |
| LAD (mm) | 48.00 (41.00–52.00) |
| LVEDD (mm) | 47.70 (44.50–57.10) |
| LVEDDI (mm/m) | 24.30 (19.60–29.30) |
| LVM (g) | 205.00 (133.00–257.00) |
| LVMI (g/m) | 96.74 (68.07–118.40) |
| NT-proBNP (pmol/L) | 212.00 (141.00–330.00) |
| GFR (mL/min/1.73 m) | 64.00 (43.70–85.20) |
| Potassium (mmol/L) | 4.80 (4.40–5.20) |
| Sodium (mmol/L) | 137.00 (134.00–141.00) |
| Q1 – 1 quartile; Q3 – 3 quartile; BMI – body mass index; RR – respiratory rate; SpO – oxygen saturation; sBP – systolic blood pressure; dBP – diastolic blood pressure; NYHA – New York Heart Association; TFC – thoracic fluid content; TFCI – TFC index; SV – stroke volume; SI – stroke index; CO – cardiac output; STR – systolic time ratio; LVET – left ventricular ejection time; PEP – pre-ejection period; LCW – left cardiac work; LCWI – LCW index; 6MWD – six-minute walk distance; LVEF – left ventricular ejection fraction; LAD – left atrial dimension in the parasternal long axis view; LVEDD – left ventricular end-diastolic dimension; LVEDDI – LVEDD index; LVM – left ventricular mass; LVMI – LVM index; NT-proBNP – amino-terminal pro-B-type natriuretic peptide; GFR – glomerular filtration rate. | |