Criteria for Removing a Surgical Drain

General Principles for Drain Removal

The American College of Radiology recommends that surgical drains can be safely removed when output is less than 300 mL/24h, which has been shown to reduce pain scores, analgesic consumption, drainage time, and length of hospital stay 1, 2
For thoracic surgery, the European Respiratory Society suggests that higher thresholds (up to 450-500 mL/day) for chest tube removal are safe and can allow for earlier drain removal without increasing complications or re-intervention rates 3, 2
The American College of Radiology states that for abdominal drains, removal criteria typically include output less than 200-300 mL/day of non-purulent fluid 4

The British Thoracic Society indicates that resolution of signs of infection (decreased fever, improved general well-being) is a key criterion for drain removal 5, 6
The British Thoracic Society recommends that normalization of acute phase reactants in blood tests is also an important indicator of clinical resolution 5
The British Thoracic Society suggests that radiographic evidence showing resolution of the collection is a critical criterion for drain removal 5, 7
The American Society of Anesthesiologists states that for chest drains specifically, absence of air leaks is a critical criterion before removal 1, 2

The British Thoracic Society recommends that ultrasound or other imaging may be used to confirm absence of significant fluid remaining when drainage has stopped 5, 6

The European Respiratory Society states that primary criterion for thoracic drain removal is absence of air leaks 1, 2
The European Respiratory Society suggests that secondary criterion is fluid drainage less than 300-500 mL/24h of non-bloody fluid 2, 3
The American Society of Anesthesiologists recommends that systematic drain removal on Day 2 after VATS (video-assisted thoracoscopic surgery) regardless of drainage volume has been shown to be safe with decreased pain and no increase in re-drainage rates 2

The American College of Radiology states that drainage less than 10-20 cc/day is a criterion for abdominal drain removal 4
The American College of Radiology recommends that resolution of the abscess on repeat imaging is also an important criterion for abdominal drain removal 4

The British Thoracic Society suggests that providing adequate analgesia before removal, such as local anesthetic cream applied to adjacent skin 3 hours before removal, has been shown to be effective 5, 6
The British Thoracic Society recommends that for chest tubes, removal should be done either during Valsalva maneuver or during expiration, with a brisk firm movement 5, 6

The American Society of Anesthesiologists states that blocked drains can indicate obstruction rather than resolution, and checking for kinking and considering flushing with normal saline before deciding to remove is recommended 5, 6
The American Society of Anesthesiologists warns that premature removal of drains may lead to fluid reaccumulation requiring repeat procedures 1, 2
The Ca-A Cancer Journal for Clinicians notes that delayed removal of drains increases risk of infection, patient discomfort, and prolongs hospital stay 2, 8
The Ca-A Cancer Journal for Clinicians states that drain-dependent infections can occur when drains are left in place for 7-14 days or longer, serving as microbial conduits for pathogens to migrate from the skin to the surgical site 8

The American Society of Anesthesiologists recommends that surgical approach affects drainage patterns, and VATS procedures typically have lower drainage rates than thoracotomy, allowing for earlier drain removal 2
The American College of Radiology suggests that for drains placed for infected collections, ensuring adequate antibiotic coverage before removal is crucial 9, 4
The Ca-A Cancer Journal for Clinicians notes that for patients with high risk of bleeding or on anticoagulation, extra caution should be taken when removing drains 8