## 3 Results  
### Patient Population  
This investigation included 23 patients with a median age of 64 years (mean 61.8, range 19-79 years). Eight patients were female and 15 participants were male. Detailed patient characteristics are displayed in Table 1. Results of laboratory parameters and ultrasound measurements are listed in Tables 2 and 3. Baseline sonographic measurements were conducted a median of 29 days (mean 35 days (range: 2-104 days)) before the day of transplantation; laboratory values and patient characteristics from the same day were used for further analysis. The second ultrasound examination was performed a median of 9 days (mean: 10.43 days (range 5-27 days)) after alloHST; laboratory values and patient characteristics were recorded on the same day after alloHST. No patient was diagnosed with SOS. \begin{table}
\begin{tabular}{l c} \hline \hline
**Patient Characteristics** & **(N = 23)** \\ \hline
**Age** & 61.8 (12.8) \\  Mean (SD) & 64.0 [19.0, 79.0] \\  Median [Min, Max] & 64.0 [19.0, 79.0] \\
**Sex** & \\  Female & 8 (34.8\%) \\  Male & 15 (65.2\%) \\
**Weight** & \\  Mean (SD) & 79.9 (17.5) \\  Median [Min, Max] & 78.0 [45.4, 119] \\
**Disease** & \\  Leukemia & 15 (65\%) \\  Multiple myeloma & 1 (4.3\%) \\  Myelodysplastic syndrome & 6 (26\%) \\  Myeloproliferative syndrome & 1 (4.3\%) \\
**Conditioning regimen** & \\  Myeloablative & 1 (4.3\%) \\  Non-myelobalative & 22 (95.7\%) \\
**AlloHST** **donor compatibility** & \\  Matched unrelated donor & 15 (65.21 \%) \\  Mismatch unrelated donor & 3 (13.04\%) \\  Matched related donor & 2 (8.69\%) \\  Haploiditical related donor & 3 (13.04\%) \\
**Pertransplantation findings** & \\  Presence of fever & 19 (82.61\%) \\  Abdominal pain & 7 (30.43\%) \\  Body weight increase \textgreater{}2\% & 9 (39.13\%) \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Patient Characteristics. \begin{table}
\begin{tabular}{l c c c} \hline \hline  & **Pre** & **Post** & **\(p\) Value** \\  & **(N = 23)** & **(N = 23)** & \\ \hline
**CRP (mg/L)** & & & \\ \hline Mean (SD) & 22.1 (36.1) & 61.4 (79.0) & 0.0091 \\ Median [Min, Max] & 3.71 [0.340, 125] & 46.0 [0.600, 296] & \\ \hline
**Bilirubin (mg/dL)** & & & \\ \hline Mean (SD) & 0.641 (0.837) & 2.96 (3.86) & 0.0001 \\ Median [Min, Max] & 0.420 [0.200, 4.36] & 2.56 [0.330, 19.4] & \\ \hline
**AP (U/L)** & & & \\ \hline Mean (SD) & 154 (117) & 110 (61.3) & 0.36 \\ Median [Min, Max] & 99.0 [35.0, 376] & 92.0 [35.0, 297] & \\ Missing & 1 (4.3\%) & 0 (0\%) & \\ \hline
**AST (U/L)** & & & \\ \hline Mean (SD) & 34.3 (23.6) & 26.7 (26.6) & 0.048 \\ Median [Min, Max] & 29.0 [8.00, 120] & 18.0 [7.00, 138] & \\ \hline
**ALT (U/L)** & & & \\ \hline Mean (SD) & 53.3 (56.5) & 28.3 (24.3) & 0.0031 \\ Median [Min, Max] & 44.0 [5.00, 267] & 21.0 [5.00, 113] & \\ \hline
**YGT (U/L)** & & & \\ \hline Mean (SD) & 168 (186) & 114 (91.1) & 0.12 \\ Median [Min, Max] & 101 [10.0, 745] & 80.0 [0.680, 280] & \\ \hline
**Thromboytes (G/L)** & & & \\ \hline Mean (SD) & 140 (124) & 45.8 (58.8) & 0.0051 \\ Median [Min, Max] & 102 [11.0, 395] & 24.0 [7.00, 260] & \\ \hline \hline \end{tabular}  
* Pre = median 29 days before hematopoietic stem cell transplantation, post = median 9 days after hematopoietic allogeneic stem cell transplantation, laboratory parameters measured at the day of ultrasound examination. AP: alkaline phosphatase, AST: aspartate aminotransferase, ALT: alanine aminotransferase, \(\gamma\)GT: gamma-glutamyl transferase.  
\end{table} 
Table 2: Laboratory Parameters.