Selective left endobronchial suctioning in the intubated patient

Area of Science:

• Medical Devices
• Pulmonary Medicine
• Critical Care Medicine

Background:

• Secretions in the left endobronchial tree require frequent suctioning in intubated patients.
• Current suctioning methods for the left bronchial tree can be challenging and ineffective.

Purpose of the Study:

• To evaluate the effectiveness of a novel curved tip suction catheter (Bronchitrac-L) for left endobronchial suctioning.
• To compare the catheter's efficacy in patients with oral endotracheal tubes versus tracheostomy tubes.

Main Methods:

• Eighty-one attempts at left endobronchial placement using the curved tip catheter were performed on 74 adult intensive care unit patients.
• Catheter placement success was assessed via chest x-ray, with analysis stratified by endotracheal tube type and patient positioning.
• Complications related to catheter use were monitored.

Main Results:

• The curved tip catheter achieved 100% success in left bronchial placement when used with tracheostomy tubes (n=15).
• With oral endotracheal tubes, 56% successful left bronchial placement was observed; this increased to 65% when the patient's head was turned left.
• Catheter function was compromised if the oral endotracheal tube tip was positioned too distally (<2 cm from carina).
• No catheter-induced complications were reported.

Conclusions:

• The curved tip suction catheter is highly effective for left bronchial suctioning in patients with tracheostomy tubes.
• Its effectiveness is reduced but still superior to conventional methods in patients with oral endotracheal tubes.
• Proper endotracheal tube positioning is crucial for optimal catheter performance.