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  • Preoperative thoracic...

Preoperative thoracic CT improves risk assessment of postop mechanical ventilation: Study

Hina ZahidBy Hina ZahidPublished On 2021-09-04T09:00:32+05:30  |  Updated On 2021-09-04T10:21:38+05:30
Preoperative thoracic CT improves risk assessment of postop mechanical ventilation: Study

USA: Thoracic CT before abdominal or pelvic surgery can be used to improve risk assessment for the need of postoperative mechanical ventilation, a recent study has found. "Many patients undergo thoracic CT before abdominal or pelvic surgery; the CT findings may complement preoperative clinical risk factors," wrote first author Arzu Canan from the University of Texas Southwestern...

USA: Thoracic CT before abdominal or pelvic surgery can be used to improve risk assessment for the need of postoperative mechanical ventilation, a recent study has found. 

"Many patients undergo thoracic CT before abdominal or pelvic surgery; the CT findings may complement preoperative clinical risk factors," wrote first author Arzu Canan from the University of Texas Southwestern Medical Center in Dallas.

Canan and colleagues' single-center retrospective study included patients who underwent preoperative thoracic CT for abdominal or pelvic surgeries requiring general endotracheal tube anesthesia between January 1, 2014, and December 31, 2018. Cases were patients who required postoperative mechanical ventilation, and both control and case-patients were matched at a 3:1 ratio based on age, sex, body mass index, chronic obstructive pulmonary disease, smoking status, and surgery type. Two radiologists reviewed the CT scans. 

Also Read: Chest CT scan for lung cancer- pros and cons!

In a matched case-control study of 165 patients (70 female, 95 male; mean age, 67 years; 42 cases, 123 matched controls) who underwent major abdominal or pelvic surgery, independent predictors (p<.05) of postoperative mechanical ventilation using preoperative thoracic CT included bronchial wall thickening (exhibited odds ratio [OR]=4.8), pericardial effusion (OR=5.3), shorter lung height (OR=0.8 per cm increase), and greater anteroposterior chest diameter (OR=1.2 per cm increase).

"CT features are associated with the need for postoperative mechanical ventilation following abdominal or pelvic surgery," wrote the authors. 

"Bronchial wall thickening was the only qualitative parameter involving the lung parenchyma that differed between the case and control groups for both readers, with a significantly increased need for postoperative mechanical ventilation in patients with bronchial wall thickening," the authors of this AJR article added. 

Also Read: Lower tidal volume ventilation by ECCO2R does not reduce mortality in respiratory failure: JAMA

Reference:

The study titled, "Preoperative Thoracic CT Findings Associated With Postoperative Mechanical Ventilation in Patients Undergoing Major Abdominal or Pelvic Surgery: A Matched Case-Control Study," is published in the American Journal of Roentgenology.

https://www.ajronline.org/doi/10.2214/AJR.21.26411


American Journal of Roentgenology mechanical ventilation abdominal surgery chest ct 
Source : American Journal of Roentgenology
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

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