U-shaped association between elapsed time after surgery and the intensity of chronic postsurgical pain following cardiac surgery via thoracotomy: an observational cohort study

ConclusionsThere was a significant U-shaped association between the elapsed time after surgery and intensity of CPSP. The adjusted log odds of each NRS response was lowest at 33  months after cardiac surgery via thoracotomy.
Source: General Thoracic and Cardiovascular Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research