# Is It Safe to Omit Any Chest X‐Ray Before Removing the Chest Drain After Elective, Non‐Cardiac Thoracic Surgery? A Single‐Center, Retrospective, Case–Control Study

## TL;DR

This study found that skipping chest X-rays before removing chest drains after thoracic surgery is safe and could reduce complications and healthcare costs.

## Contribution

The study provides evidence that routine chest X-rays before drain removal may be safely omitted in elective thoracic surgery.

## Key findings

- Patients who skipped pre-drain removal X-rays had fewer minor complications.
- Abnormalities found in X-rays did not change patient care.
- Omitting X-rays was associated with shorter drainage time and hospital stays.

## Abstract

Every patient undergoing non‐cardiac thoracic surgery will receive several chest X‐rays through the perioperative period. The patient might receive a preoperative X‐ray as a baseline as well as several X‐rays before and after drain removal. This routine has several disadvantages, for the patient, the health care system and the medical staff. Purpose of this study was to examine if all X‐rays before removal of the drain can be omitted.

Two hundred fifty‐five patients who underwent elective thoracic surgery were included in this retrospective analysis. Patients undergoing urgent procedures or empyema surgery, as well as patients with symptoms requiring further diagnostic measures or patients who required clamping of the drain before removal, were excluded.

Forty‐five patients received an X‐ray before removal of the drain, and 210 patients did not. The X‐ray group developed significantly more minor complications than the no X‐ray group. 46.7% of the X‐rays before drain removal (X‐ray group) were reported with abnormalities. However, these abnormalities never led to a change in patient care. Drainage time and postoperative hospital stay were significantly longer in the X‐ray group.

Omitting any X‐ray between surgery and removal of the chest drain appears to be safe in our retrospective patient cohort. The proposed benefits of omitting the X‐ray are very relevant for the health care system, the medical and nursing teams, and, more importantly, for the patients. Evidence suggests that X‐ray of patients regularly do not exist. It is therefore reasonable to consider exploring this question in a formal prospective trial.

summary of study design and results.