Background: Patients with vertebrobasilar dolichoectasia usually have persistent hemodynamic abnormalities, and therefore, may bear an increased risk of stroke. This study aimed to identify risk factors for stroke recurrence in patients with vertebrobasilar dolichoectasia.
Methods: Patients with acute ischemic stroke were screened and evaluated for eligibility. Enrolled patients were followed via scheduled clinical visits or telephone interviews. Ischemic stroke recurrence was proposed with clinical symptoms and confirmed with cranial Magnetic Resonance Imaging or Computerized Tomography scans. Baseline characteristics and vascular geometry were compared between patients with and without stroke recurrence. Significant parameters were introduced into COX proportional hazard model to detect possible predictors of stroke recurrence.
Results: A total of 115 stroke patients with vertebrobasilar dolichoectasia were enrolled, of which 22 (19.1%) had recurrence during 22 ± 6 months follow-up. Basilar artery diameter ≥ 5.3mm (HR = 4.744; 95% CI, 1.718-13.097; P = 0.003), diffuse intracranial dolichoectasia (HR = 3.603; 95% CI, 1.367-9.496; P = 0.010) and ischemic heart disease history (HR = 4.095; 95% CI, 1.221-13.740; P = 0.022) had increased risk of recurrence.
Conclusions: Stroke patients with vertebrobasilar dolichoectasia may have a high risk of recurrence. Larger basilar artery diameter or diffuse intracranial dolichoectasia may increase the risk of recurrence.

Figure 1

Figure 2
Loading...
Posted 05 Jun, 2019
On 09 Jul, 2019
Received 27 Jun, 2019
Received 27 Jun, 2019
On 25 Jun, 2019
Invitations sent on 06 Jun, 2019
On 06 Jun, 2019
On 04 Jun, 2019
On 04 Jun, 2019
On 04 Jun, 2019
On 28 May, 2019
Received 27 May, 2019
Received 23 May, 2019
On 09 May, 2019
On 06 May, 2019
Invitations sent on 24 Apr, 2019
On 21 Apr, 2019
On 03 Apr, 2019
On 03 Apr, 2019
On 30 Mar, 2019
Posted 05 Jun, 2019
On 09 Jul, 2019
Received 27 Jun, 2019
Received 27 Jun, 2019
On 25 Jun, 2019
Invitations sent on 06 Jun, 2019
On 06 Jun, 2019
On 04 Jun, 2019
On 04 Jun, 2019
On 04 Jun, 2019
On 28 May, 2019
Received 27 May, 2019
Received 23 May, 2019
On 09 May, 2019
On 06 May, 2019
Invitations sent on 24 Apr, 2019
On 21 Apr, 2019
On 03 Apr, 2019
On 03 Apr, 2019
On 30 Mar, 2019
Background: Patients with vertebrobasilar dolichoectasia usually have persistent hemodynamic abnormalities, and therefore, may bear an increased risk of stroke. This study aimed to identify risk factors for stroke recurrence in patients with vertebrobasilar dolichoectasia.
Methods: Patients with acute ischemic stroke were screened and evaluated for eligibility. Enrolled patients were followed via scheduled clinical visits or telephone interviews. Ischemic stroke recurrence was proposed with clinical symptoms and confirmed with cranial Magnetic Resonance Imaging or Computerized Tomography scans. Baseline characteristics and vascular geometry were compared between patients with and without stroke recurrence. Significant parameters were introduced into COX proportional hazard model to detect possible predictors of stroke recurrence.
Results: A total of 115 stroke patients with vertebrobasilar dolichoectasia were enrolled, of which 22 (19.1%) had recurrence during 22 ± 6 months follow-up. Basilar artery diameter ≥ 5.3mm (HR = 4.744; 95% CI, 1.718-13.097; P = 0.003), diffuse intracranial dolichoectasia (HR = 3.603; 95% CI, 1.367-9.496; P = 0.010) and ischemic heart disease history (HR = 4.095; 95% CI, 1.221-13.740; P = 0.022) had increased risk of recurrence.
Conclusions: Stroke patients with vertebrobasilar dolichoectasia may have a high risk of recurrence. Larger basilar artery diameter or diffuse intracranial dolichoectasia may increase the risk of recurrence.

Figure 1

Figure 2
Loading...