Inclusion Criteria:  Adult patients ≥18 years Patients who will undergo TAA and TAAA open repair with intraoperative intercostal nerves cryoablation Subject has consented for study participation and signed the approved Informed Consent  Exclusion Criteria:  Patients with active systemic or cutaneous infection or inflammation Patients who are pregnant or breastfeeding Patients younger than 18 years of age Unwilling or unable to comply with the follow-up schedule Inability or refusal to give informed consent Frank rupture Previous stroke with neurological sequelae