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Endoscopic Guidance Does Not Reduce Complications in TracheostomyAt-a-Glance

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Key Takeaway
Endoscopic guidance for tracheostomy did not reduce complications but increased airway pressures and PaCO2 in this RCT.

A multicenter randomized controlled trial conducted in four medical-surgical ICUs in Spain evaluated whether endoscopic guidance during percutaneous dilatational tracheostomy reduces perioperative complications in adults with prolonged mechanical ventilation. A total of 442 patients were randomized to undergo either endoscopic-guided or nonendoscopic-guided tracheostomy.

The primary outcome, prevalence of perioperative complications, occurred in 11.3% of the endoscopic group versus 13.1% of the nonendoscopic group, a difference that was not statistically significant (95% CI, -6.8 to 10.4; p = 0.663). However, secondary outcomes revealed that the endoscopic group had significantly higher mean peak inspiratory pressure during the procedure (47.4 vs 37.05 cm H2O; p < 0.001) and higher mean PaCO2 at the end of the procedure (44.3 vs 41.5 mm Hg; p = 0.001).

The study was unblinded, which may introduce bias. No limitations were reported, and funding or conflicts were not disclosed. The results suggest that routine use of endoscopic guidance does not offer advantages in reducing complications and may be associated with adverse physiological changes during the procedure.

Clinicians should weigh these findings when deciding on the use of endoscopic guidance for percutaneous tracheostomy. The lack of benefit in complication rates, combined with increased airway pressures and hypercapnia, suggests that nonendoscopic guidance may be a reasonable alternative.

Imagine you or a loved one is in the intensive care unit (ICU) and needs a breathing tube placed directly into the windpipe. Doctors call this a tracheostomy (say: tray-key-OS-tuh-me). It's a common procedure for patients who need help breathing for a long time.

For years, many doctors believed that using a tiny camera called an endoscope (say: EN-doh-skope) during this surgery made it safer. The camera lets them see exactly where the tube goes. It seemed like common sense.

But a new study says that might not be true.

What the camera was supposed to do

The camera, also called a bronchoscope (say: BRON-koh-skope), is a thin flexible tube with a light and camera on the end. Doctors slide it down the patient's throat to watch the tracheostomy tube being placed.

The idea was simple. If you can see what you are doing, you should make fewer mistakes. You should hit fewer blood vessels. You should place the tube more accurately.

Hospitals around the world started using this camera method as the standard of care. It became the "right way" to do the procedure.

But here is the twist: The camera might not actually help.

A closer look at the numbers

Researchers in Spain ran a careful study across four hospital ICUs. They enrolled 442 adult patients who all needed a tracheostomy. Half got the procedure with the camera. Half got it without.

The results surprised many doctors.

In the camera group, 11.3 percent of patients had complications. In the no-camera group, 13.1 percent had complications. Statistically speaking, that difference is so small it could be due to chance.

Think of it this way. If you flip a coin 100 times, you might get 48 heads and 52 tails. That small difference doesn't mean the coin is rigged. The same logic applies here. The complication rates were essentially the same.

The unexpected finding

Here is where things get interesting. The camera group actually had higher airway pressure during the procedure. Their carbon dioxide levels were also higher afterward.

Higher airway pressure means the lungs had to work harder. Higher carbon dioxide means the body wasn't clearing waste gas as well.

Why would this happen? The camera takes up space inside the breathing tube. Less space for air means more pressure. It's like trying to breathe through a straw while someone puts a finger over part of the opening.

The camera group also had slightly longer procedure times. Every extra minute under sedation carries its own small risks.

What this means for patients

If you or a family member needs a tracheostomy, this study is good news. It means the simpler, faster method without the camera is just as safe.

The no-camera method is also cheaper. It requires less equipment. It takes less time to set up. In busy ICUs where every minute counts, that matters.

But there is a catch.

Not every patient is the same

This study only included patients who were considered low-risk for complications. Patients with very large necks, bleeding disorders, or other risk factors were not included.

For those higher-risk patients, the camera might still be helpful. The study simply did not test that group.

Also, all the procedures in this study were done by experienced doctors. Less experienced doctors might benefit more from the camera view. The study did not test that either.

What happens next

This study was published in Critical Care Medicine in May 2026. It is one of the largest and most careful studies on this question ever done.

Hospital guidelines may change based on these results. Some hospitals may stop using the camera as a routine step. Others may keep it for specific high-risk cases.

The researchers are clear about one thing. This does not mean cameras are useless in all breathing tube procedures. It means the routine use of a camera for every tracheostomy may not be necessary.

For patients and families facing this procedure, the takeaway is simple. Ask your doctor whether a camera will be used. But know that the simpler method is backed by solid evidence.

Research like this takes time to reach hospital floors. Guidelines must be reviewed. Doctors must update their training. But change is coming.

And sometimes, the best tool is not the fanciest one. It is the one that works just as well without extra steps.

Study Details

Study typeRct
Sample sizen = 442
EvidenceLevel 2
PublishedMay 2026
View Original Abstract ↓
OBJECTIVES: To assess the prevalence of perioperative complications of endoscopic-guided percutaneous dilatational tracheostomy vs. nonendoscopic-guided percutaneous dilatational tracheostomy. DESIGN: Multicenter, unblinded, randomized parallel-group trial with an intention-to-treat analysis conducted from December 2019 to December 2024. ClinicalTrials.gov Identifier: NCT04265625. SETTING: Four medical-surgical ICUs in Spain. PATIENTS: Adults undergoing tracheostomy for prolonged mechanical ventilation were enrolled. INTERVENTIONS: Patients were randomized to: 1) endoscopic-guided percutaneous dilatational tracheostomy or 2) nonendoscopic-guided percutaneous dilatational tracheostomy, both performed with the single dilatation method and by experienced clinicians in patients with no risk factors. MEASUREMENTS AND MAIN RESULTS: The primary endpoint was the prevalence of perioperative complications. The secondary endpoints included airway pressures during the procedure, gas exchange after the procedure and all-cause mortality at hospital discharge. We enrolled 442 patients, 221 patients assigned to each arm. Twenty-five patients (11.3%) in the endoscopic-guided percutaneous dilatational tracheostomy group and 29 (13.1%) in nonendoscopic-guided percutaneous dilatational tracheostomy group had perioperative complications (95% CI, -6.8 to 10.4; p = 0.663). Patients randomized to endoscopic-guided percutaneous dilatational tracheostomy had higher mean peak inspiratory pressure (47.4 ± 17.6 vs. 37.05 ± 10.6 cm H 2 O; 95% CI, 7.5-13.2; p < 0.001) during the procedure and higher mean Pa co2 at the end of the procedure (44.3 ± 8.9 vs. 41.5 ± 8.1 mm Hg; 95% CI, 1.1-4.4; p = 0.001) than nonendoscopic-guided percutaneous dilatational tracheostomy patients. CONCLUSIONS: In critically ill patients undergoing percutaneous dilatational tracheostomy, the routine use of endoscopic guidance did not demonstrate superiority over procedures performed without endoscopic guidance in terms of complication rates.
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