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Page 4 of 8 Yamanaka et al. Vessel Plus 2020;4:39 I http://dx.doi.org/10.20517/2574-1209.2020.46

Figure 2. 3D-CT image. Left side: preoperative distal aortic arch aneurysm; right side: total arch replacement with frozen elephant trunk

Table 2. Perioperative data
Operation time 317 ± 66 min
CPB time 164 ± 28 min
SCP time 91 ± 24 min
CA time 45 ± 9 min
CI time 95 ± 29 min
Bladder temperature 25.1 ± 0.5 °C
CPB: cardiopulmonary bypass; SCP: selective cerebral perfusion; CA: circulatory arrest; CI: cardiac ischemia

Table 3. FET data
FET diameter 30.7 ± 3.0 mm
FET length 11.4 ± 1.2 cm
Thoracic vertebra level of FET end 6.4 ± 1.0

FET: frozen elephant trunk

RESULTS
Success rate of aneurysm exclusion by the method was 100%. There was no type II endoleak in all cases and
type Ib endoleak in one case, which was not connected to the aneurysm. Perioperative data are listed in
Table 2. The implantation of the FET achieved in all cases under moderate hypothermic circulatory arrest.
Circulatory arrest was achieved at bladder temperature of 25.1 ± 0.5 °C. The extracorporeal circulation time
was 164 ± 28 min, heart ischemic time and arrest time were 95 ± 29 min (range 57-173 min) and 45 ± 9 min
(range 34-73 min), respectively. According to postoperative CT, the distal end of the FET was in the T5-T9
range, the mean level of T6.4 [Table 3].

Postoperative patient characteristics are listed in Table 4. Hospital mortality was 0%. Mean ICU stay was
3.4 ± 5.2 days. Mean hospital stay was 25.3 ± 29.6 days. Stroke occurred in three patients (7.5%) including
one with shaggy aorta. One of the three patients developed paralysis on right side of body postoperatively,