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1.
Head Neck ; 45(2): 329-336, 2023 02.
Article in English | MEDLINE | ID: mdl-36333967

ABSTRACT

BACKGROUND: During transoral robot-assisted thyroidectomy, there is a risk of increasing intracranial pressure because the site of CO2 insufflation is narrow and close to the brain. METHODS: We analyzed the pre- to post-CO2 neck insufflation change in the optic nerve sheath diameter during transoral robot-assisted thyroidectomy. Changes in vital-signs, airway pressure, and arterial carbon dioxide pressure were analyzed along with postoperative complications. RESULTS: Among the 30 participants, the post-CO2 inflation mean optic nerve sheath diameter (5.64 ± 0.54 mm) was higher than the pre-induction diameter (4.81 ± 0.37 mm) with a mean difference of 0.83 (95% CI, 0.69-0.97; p < 0.001), but returned to baseline after CO2 deflation in most cases. One participant had sustained increased optic nerve sheath diameter (6.35 mm) associated with severe new-onset postoperative headache. CONCLUSION: Transient elevation in the intracranial pressure during low-pressure CO2 neck insufflation in the transoral robot-assisted thyroidectomy did not appear to adversely affect patients.


Subject(s)
Intracranial Hypertension , Robotic Surgical Procedures , Robotics , Humans , Thyroidectomy/adverse effects , Carbon Dioxide , Intracranial Pressure/physiology , Intracranial Hypertension/etiology , Optic Nerve/diagnostic imaging , Ultrasonography
2.
J Clin Med ; 11(6)2022 Mar 18.
Article in English | MEDLINE | ID: mdl-35330007

ABSTRACT

Tourniquet use during total knee arthroplasty improves the surgical field, but is associated with several complications. The medical records of 506 patients who underwent elective total knee arthroplasty or total knee replacement from January 2017 to December 2020 were reviewed. A total of 331 patients who had undergone total knee arthroplasty were included. In the first half course group, the tourniquet was inflated with a pressure of 300 mmHg after manual banding before the incision and deflated after cement insertion. In the two-stage group, the tourniquet was inflated and deflated at the same stages of the procedure as in the first half course group. However, in this second group, the tourniquet was deflated for 15 min and then inflated again, and, finally, it was deflated after skin closure. The estimated blood loss, the number of patients who needed medications to control their blood pressure, and opioid usage at the post-anesthesia care unit were similar in both groups. The two-stage tourniquet technique was not related to reduced total blood loss in total knee arthroplasty.

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