Sengstaken-Blakemore Tube: A Clinical Guide to Emergency Hemorrhage Control
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer: What is a Sengstaken-Blakemore tube?
A Sengstaken-Blakemore tube is a flexible device used in emergencies to stop severe bleeding in the esophagus or stomach. [1] Inserted through the nose or mouth, it has two inflatable balloons that press on bleeding veins and a suction port. [1] It provides temporary stabilization for several hours until definitive treatment and is reserved for critical situations where other methods fail. [1]
What the research says
Refractory variceal bleeding is uncommon but dangerous. Acute esophageal variceal bleeding accounts for up to 70% of upper gastrointestinal bleeding in people with cirrhosis, and about 10% to 20% of acute variceal bleeds are refractory, meaning they are not controlled by medicine or endoscopy. Balloon tamponade is effective only temporarily and has several complications (Songtanin et al., J Clin Med, 2024) [2].
Newer options are being studied as a bridge. In a meta-analysis of 12 studies (225 patients), self-expandable metal stents controlled bleeding immediately in 91%, rebleeding occurred in 17%, and all-cause mortality was 38%. The authors suggest stents as salvage therapy when band ligation and sclerotherapy fail, as a bridge to TIPS or liver transplantation (Songtanin et al., J Clin Med, 2024) [2].
Endoscopy has largely replaced the tube. A 2025 review describes the SB tube as largely obsolete where endoscopy is available, citing complications such as esophageal perforation, aspiration pneumonia, and gastric ulceration, and noting that band ligation and sclerotherapy offer better precision, efficacy, and safety (Kogilathota Jagirdhar et al., World J Crit Care Med, 2025) [3].
What is the Sengstaken-Blakemore tube?
The Sengstaken-Blakemore tube, often abbreviated as the SB tube, is a medical instrument used for the emergency management of upper gastrointestinal hemorrhaging. This device is specifically engineered to address bleeding caused by esophageal or gastric varices, which are swollen veins that frequently occur in patients with advanced liver disease. [1] [2] In critical care settings, the SB tube serves as a temporary bridge to stabilization, providing clinicians with the time necessary to arrange for more permanent interventions. [3]
In contemporary medical practice, the use of the SB tube has become less frequent. [1] [3] Advancements in pharmacotherapy and the widespread availability of endoscopic techniques, such as band ligation and sclerotherapy, have provided more effective and less invasive means of controlling internal bleeding. [1] [3] Nevertheless, the SB tube remains an essential component of the emergency medical arsenal, particularly in scenarios where specialized endoscopic services are unavailable or when bleeding is too massive to be controlled by other means. [1] [3]
What are the parts of a Sengstaken-Blakemore tube, and how does it work?
The Sengstaken-Blakemore tube is a long, flexible catheter characterized by a multi-channel design. Its primary functional elements include two inflatable balloons and three distinct ports, each serving a specific clinical purpose in the management of hemorrhage. [1]
Component | Function | Clinical Significance |
|---|---|---|
Gastric Balloon | Inflates within the stomach. | Provides an anchor and applies pressure to gastric varices. |
Esophageal Balloon | Inflates within the esophagus. | Applies direct pressure to esophageal varices to stop bleeding. [1] |
Suction Port | Removes fluid and blood. [1] | Allows for gastric decompression and monitoring of ongoing bleeding. |
The mechanism of action relies on the principle of balloon tamponade. Once correctly positioned, the balloons are inflated to exert direct mechanical pressure against the bleeding vessels in the lining of the esophagus or stomach. This pressure compresses the veins, effectively halting the flow of blood. [1] In some cases, healthcare providers may apply additional traction or weight to the external end of the tube to increase the pressure exerted by the gastric balloon against the gastroesophageal junction.
What happens during Sengstaken-Blakemore tube placement, and what should clinicians consider?
The placement of a Sengstaken-Blakemore tube is a high-stakes procedure that requires precise execution and constant monitoring. Due to the critical nature of the patient’s condition, this intervention is performed in an emergency department or intensive care unit (ICU).
Insertion and verification: the tube is lubricated and inserted through either the nose or the mouth. [1] It is advanced down the esophagus until the gastric balloon reaches the stomach. To ensure patient safety and correct placement, clinicians use X-ray imaging to verify the position of the tube before the balloons are inflated. [1]
Inflation and tamponade: once placement is confirmed, the gastric balloon is inflated first to secure the tube’s position. [1] If bleeding continues, the esophageal balloon is then inflated to the prescribed pressure. The suction port is used to clear the stomach of blood and fluid, which helps in assessing the effectiveness of the tamponade.
Monitoring and duration: the tube typically remains in place for several hours, or until the patient’s condition is sufficiently stabilized for a more definitive procedure. [1] Clinicians must carefully monitor the pressure within the balloons to prevent tissue damage.
Removal: when the bleeding is believed to be controlled, the balloons are slowly deflated. [1] The tube is then carefully withdrawn. There is a significant risk, approximately 50%, that bleeding may recur once the pressure is removed, so clinicians must be ready with alternative treatments. [1]
What are the risks and complications of a Sengstaken-Blakemore tube?
The use of the Sengstaken-Blakemore tube carries substantial risks, which is why it is reserved for life-threatening emergencies. [1] The complexity of the device and the urgency of its placement can lead to several serious complications.
Complication | Description | Risk Mitigation |
|---|---|---|
Airway Obstruction | Accidental insertion into the trachea or displacement. [1] | Endotracheal intubation is often performed before insertion. [1] |
Aspiration Pneumonia | Constant suctioning and proper patient positioning. | |
Esophageal Rupture | Careful monitoring of balloon inflation pressures. | |
Pressure Ulcers | Tissue damage in the esophagus from prolonged pressure. [1] | Limiting the duration of balloon inflation. |
Clinicians must also be aware of contraindications for the use of the SB tube. It should not be used in patients who have a known esophageal blockage or who have recently undergone surgery on the stomach or esophagus, as these conditions significantly increase the risk of injury. [1]
Conclusion
The Sengstaken-Blakemore tube remains a vital, though infrequently used, lifesaving intervention in the management of catastrophic gastrointestinal bleeding. While modern medical advances have provided more effective alternatives for most cases, the SB tube’s ability to provide immediate mechanical tamponade makes it indispensable in critical emergencies. By understanding its mechanism, procedure, and associated risks, healthcare teams can effectively use this device to stabilize patients during their most vulnerable moments.
What are the next steps with a Sengstaken-Blakemore tube?
If you or a loved one are at risk for esophageal or gastric varices due to liver disease, it is essential to work closely with a gastroenterologist. Early intervention and regular monitoring can help manage these conditions and reduce the likelihood of requiring emergency procedures like the placement of a Sengstaken-Blakemore tube.
Trusted resources: StatPearls: Sengstaken-Blakemore Tube, American College of Gastroenterology variceal hemorrhage resources.
Related reading on Rinnit: Gastric Varices: Symptoms, Causes, Diagnosis, Treatment, and Outlook — What You Need to Know
Frequently Asked Questions
What is the primary use of a Sengstaken-Blakemore tube?
The primary use is to temporarily stop severe, life-threatening bleeding from esophageal or gastric varices in emergency situations where other treatments are not effective.
Is the placement of an SB tube a permanent fix?
No, it is a temporary, emergency measure designed to stabilize a patient until a more permanent treatment, such as surgery or specialized endoscopy, can be performed.
How is the tube inserted?
The tube is inserted through the nose or mouth and guided down into the esophagus and stomach. Its position is then confirmed using X-ray imaging.
Why is the SB tube used less frequently today?
Modern treatments, including effective medications and advanced endoscopic procedures like band ligation, are generally more effective and carry fewer risks than the SB tube.
What are the main risks associated with this device?
The most serious risks include airway obstruction, aspiration pneumonia, esophageal rupture, and the development of pressure ulcers in the esophagus.
What is balloon tamponade?
Balloon tamponade is a medical technique that uses inflated balloons to apply direct pressure to a bleeding area to stop hemorrhaging.
How long does the tube stay in place?
The tube typically remains in place for several hours, depending on how quickly the bleeding is controlled and the patient is stabilized.
What happens if the bleeding starts again after removal?
There is a 50% chance of re-bleeding once the tube is removed. Healthcare providers must be prepared to immediately use another treatment if this occurs.
Can a patient eat or drink with the tube in place?
No, the patient cannot eat or drink. The tube itself is used to suction fluids and blood out of the stomach.
Is the patient awake during the procedure?
Due to the critical nature of the situation and the risk of airway complications, patients are often sedated and intubated (given a breathing tube) before the SB tube is inserted.
What is the gastric balloon’s purpose?
The gastric balloon serves as an anchor to hold the tube in place and applies pressure to bleeding vessels at the top of the stomach.
How do doctors know the tube is in the right place?
Doctors use X-ray imaging to verify that the tube is correctly positioned in the esophagus and stomach before inflating the balloons.
What is the suction port used for?
The suction port is used to remove blood and fluid from the stomach, which helps clinicians monitor the rate of bleeding and prevents the patient from inhaling stomach contents.
Are there any conditions where the SB tube cannot be used?
It should not be used if the patient has a narrowed or blocked esophagus or has recently had surgery on the stomach or esophagus.
Who performs the placement of an SB tube?
The procedure is typically performed by emergency medicine physicians, gastroenterologists, or intensivists in a hospital setting.
Related Reading
References
Cleveland Clinic. Sengstaken-Blakemore tube. Cleveland Clinic. September 29, 2025. https://my.clevelandclinic.org/health/procedures/sengstaken-blakemore-tube
Songtanin B, Kahathuduwa C, Nugent K. Esophageal stent in acute refractory variceal bleeding: a systematic review and meta-analysis. J Clin Med. 2024;13(2):357. PMID 38256491. https://doi.org/10.3390/jcm13020357
Kogilathota Jagirdhar GS, Okafor CC, Hussain M, et al. Decline of the Sengstaken-Blakemore tube: a review of shifting practices in gastrointestinal hemorrhage management. World J Crit Care Med. 2025;14(3):101856. PMID 40880554. https://doi.org/10.5492/wjccm.v14.i3.101856
Medical Disclaimer
This article is for informational purposes only and does not constitute medical advice. Always seek the advice of a qualified healthcare professional with any questions regarding a medical condition or surgical procedure.
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