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Clot lysis time in patients with end-stage heart failure on mechanical circulatory support: long-term observation Cover

Clot lysis time in patients with end-stage heart failure on mechanical circulatory support: long-term observation

Open Access
|Aug 2024

Figures & Tables

Figure 1.

Flowchart of the study
Flowchart of the study

Figure 3a.

Comparison between patients with and without MACCE in the subgroup of patients who completed four observations (n=23). Whiskers presents range, box presents interquartile range (IQR) and the bar within the box displays median.
Comparison between patients with and without MACCE in the subgroup of patients who completed four observations (n=23). Whiskers presents range, box presents interquartile range (IQR) and the bar within the box displays median.

Figure 3b.

Comparison between patients with and without bleeding in the subgroup of patients who completed four observations (n=23). Whiskers present range, the box presents interquartile range (IQR), and the bar within the box displays median
Comparison between patients with and without bleeding in the subgroup of patients who completed four observations (n=23). Whiskers present range, the box presents interquartile range (IQR), and the bar within the box displays median

Figure 3c.

Comparison between patients with and without NACE in the subgroup of patients who completed four observations (n=23). Whiskers presents range, box presents interquartile range (IQR) and the bar within the box displays median. The square bracket (top-right) shows statistically significant difference between groups with the p-value after Holm-Bonferroni correction
Comparison between patients with and without NACE in the subgroup of patients who completed four observations (n=23). Whiskers presents range, box presents interquartile range (IQR) and the bar within the box displays median. The square bracket (top-right) shows statistically significant difference between groups with the p-value after Holm-Bonferroni correction

Figure 2.

CLT in the subgroup of patients during follow-up, n=23. Dots represent individual patients. The gray line connects the same patient at consecutive time points. The box presents an interquartile range (IQR), and the bar within the box displays the median
CLT in the subgroup of patients during follow-up, n=23. Dots represent individual patients. The gray line connects the same patient at consecutive time points. The box presents an interquartile range (IQR), and the bar within the box displays the median

Baseline characteristics of LVAD patients (prior to LVAD implantation), 85 patients

Variable
Age at the time of implantation, years58.2 [48.6–63.8]
NYHA class4[3.5–4]
INTERMACS3[2–4]
LVEF, %15[11–17]
LVEDD, mm75[70–82]
Prior stroke13 (17.6)
Hypertension38 (44.7)
Diabetes mellitus35 (41.2)
eGFR< 60ml/min/1.73m2,37 (45.1)
Medications, n (%)
Beta blockers65 (76.5)
ACEI44 (51.8)
ARB12 (14.1)
Aldosterone antagonists74 (87.1)
Aspirin24 (28.2)
Clopidogrel5(5.9)
Statin51 (60)
Vitamin K antagonists38 (44.7)

Comparison of CLT according to bleeding events in the course of time_ Subgroup of patients with completed four observations (n=23)_ In the analyzed subgroup of patients, bleedings occurred in 5 patients

Clot Lysis Time [min]baseline3–4 months6–12 monthsLast available
Patients with bleedings during the whole observation period, n=590.5 (94.5–111)85 (75.6–112)110.3 (88.5–119)144.5 (111–153.5)
Patients without bleedings during the whole observation period, n=18107.5 (94.1–127.1)80 (74.8–94.9)110.3 (88.5–119)144.5 (111–153.5)

Laboratory investigations in LVAD patients who completed the whole study, n=23_ Patients who died prior to the end of observation and incomplete observations were excluded from the further analyses

Laboratory parametersbaseline, N = 233–4 months, N = 236–12 months, N = 23last sample, N = 23p-value1q-value2Effect sizeEffect size (without baseline)
White blood cell count, 103/µL9.93 (7.52–11.05)7.70 (6.28–9.17)7.31 (5.88–8.76)7.80 (6.89–9.41)0.0660.07864.3%21.1%
Hemoglobin, mmol/L7.70 (7.15–9.00)8.10 (7.30–8.45)8.30 (7.50–8.90)8.80 (7.85–9.45)0.0150.02248.5%53.6%
Platelet count, 103/µL194 (146–254)245 (199–261)211 (171–257)185 (172–228)0.0030.00847.4%56.2%
Bilirubin, µmol/L18 (8–33)8 (7–11)11 (9–13)11 (8–15)<0.0010.00470.0%55.1%
Albumin, g/L40.0 (35.0–42.0)44.0 (41.5–47.5)45.0 (43.0–49.0)46.0 (42.0–47.5)<0.001<0.00181.2%17.0%
Creatinine, µmol/L125 (110–184)100 (81–125)110 (93–131)111 (95–154)0.0010.00558.4%35.3%
hsCRP, mg/L8 (4–25)8 (3–18)6 (4–10)4 (2–13)0.20.238.7%28.4%
NT-proBNP, pg/mL11259 (5521–20366)2244 (1230–3273)1854 (895–2995)1992 (1138–3005)<0.001<0.00189.0%10.1%
Fibrinogen, g/L479 (380–542)424 (359–476)394 (346–428)368 (321–453)0.0100.01762.7%34.4%
D-dimer, ng/mL1.66 (1.00–3.46)1.79 (1.43–2.46)1.25 (0.97–1.66)1.11 (0.69–1.53)0.0010.00562.7%77.9%
CLT, min104 (93–125)82 (75–104)91 (79–113)98 (86–117)0.0220.02756.6%41.0%
Von Willebrand Factor, %290 (210–368)168 (140–215)177 (139–212)174 (131–288)0.0090.01777.3%17.9%
Factor VIII, %281 (232–349)200 (171–229)197 (131–226)174 (114–226)0.0070.01583.4%28.0%
Antitrombin, %87 (73–94)93 (87–99)97 (92–104)104 (90–108)0.0130.02076.0%52.6%
International Normalized Ratio, %1.53 (1.21–1.89)2.29 (2.06–2.37)2.24 (2.01–2.65)2.31 (2.17–2.57)<0.001<0.00190.0%17.4%
Thrombin Time, s16.90 (15.85–18.05)16.00 (15.70–16.60)15.80 (15.20–16.38)16.60 (15.85–17.30)0.0170.02366.7%63.7%
Activated Partial Thromboplastin Time, s43 (33–46)45 (40–50)41 (37–45)38 (36–42)0.0030.00856.7%71.0%
ASPI, AU × min590 (362–1,058)431 (276–705)331 (239–754)533 (312–880)0.20.237.2%22.4%
ADP, AU × min364 (274–658)466 (223–621)408 (268–655)461 (341–653)0.100.116.9%7.3%

Major adverse cardiac and cerebrovascular events (MACCE), bleeding events and Net Adverse Clinical Events (NACE) in the whole group of patients (n=85)

0 to 3 months3–4 months6–12 monthsLast available (median 21 months;IQR:10–29 months)
MACCE, pts. (%)11(12.9)4(5.1)10(12.9)9(13.4)
Bleeding events, pts. (%)3(3.5)8(10.3)5(6.5)6(8.9)
NACE, pts (%)14(16.5)12(15.4)14 (18.2)15(22.4)
Deaths, pts (%)7(8.2)1(1.3)10(12.9)9(13.4)

Comparison of CLT according to Major Adverse Cardiac and Cerebrovascular Events (MACCE) in the course of time, subgroup of patients with completed four observations (n=23)_ In the analyzed subgroup of patients MACCE occurred in 7 patients

Clot Lysis Time [min]baseline3–4 months6–12 monthsLast available
Patients with MACCE during the whole observation period, n=6111 (105.4–116.3)100.8 (79.2–112)103.8 (76.5–119.8)125.8 (112.33–142.2)
Patients without MACCE during the whole observation period, n=17103 (91–129.5)78 (74.5–94.5)90.5 (83–105)90.5 (77.5–105)

Comparison of CLT according to Net Adverse Clinical Events (NACE) events in the course of time_ Subgroup of patients with completed four observations (n=23)_ In the analyzed subgroup of patients, NACE occurred in 8 patients

Clot Lysis Time [min]baseline3–4 months6–12 monthsLast available
Patients with NACE during the whole observation period, n=8107.3 (96.4–112.8)87.3 (73.6–112)99.4 (80.4–119.3)125.8 (107.8–146.7)
Patients without NACE during the whole observation period, n=15104 (91.3–131)78 (75–94.8)90.5 (79.5–101.3)87.5 (77–102.8)
Language: English
Page range: 88 - 95
Submitted on: Apr 14, 2024
Accepted on: Jul 17, 2024
Published on: Aug 28, 2024
Published by: Hirszfeld Institute of Immunology and Experimental Therapy
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2024 Agnieszka Kuczaj, Bartosz Hudzik, Michał Skrzypek, Jacek Kaczmarski, Szymon Pawlak, Tomasz Hrapkowicz, Piotr Przybyłowski, published by Hirszfeld Institute of Immunology and Experimental Therapy
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