A Blakemore tube, formally called a Sengstaken-Blakemore tube, is a multi-lumen catheter with inflatable balloons that is passed through the mouth or nose into the esophagus and stomach to physically compress bleeding veins. Introduced in the 1950s, it was designed as a temporary, life-saving measure for patients hemorrhaging from esophageal varices, the swollen blood vessels that develop in advanced liver disease.1PubMed Central. Decline of the Sengstaken-Blakemore tube: A review of shifting practices in gastrointestinal hemorrhage management Though its use has fallen sharply as endoscopic and interventional techniques have improved, the device remains a critical rescue tool when those methods fail and a patient is bleeding to death.
Why Esophageal Varices Bleed
The Blakemore tube exists because of a specific and dangerous complication of liver disease. When the liver becomes scarred, blood has trouble flowing through it. Pressure builds in the portal vein, the major vessel that carries blood from the gut to the liver. That elevated pressure, called portal hypertension, forces blood to find alternate routes. Some of those detour pathways run through the walls of the esophagus and upper stomach, where thin-walled veins swell into varices.2PubMed. Pathophysiology of portal hypertension and variceal bleeding
Not everyone with portal hypertension bleeds. Whether a varix actually ruptures depends on a combination of factors: how high the pressure is, how large the varix has grown, and how thin its wall has become. The interplay of these three variables determines the wall tension in the varix, and high wall tension is the best single predictor of rupture.3PubMed. Pathophysiology of portal hypertension and variceal bleeding When a varix does burst, the bleeding can be catastrophic, with patients losing large volumes of blood in minutes. This is the scenario the Blakemore tube was built for.
How the Device Works
The concept is straightforward: if a blood vessel is bleeding, pressing something firmly against it can stop the flow long enough for a clot to form or for definitive treatment to be arranged. The Blakemore tube achieves this with two inflatable balloons on a long, flexible tube. The gastric balloon sits in the stomach once inflated and anchors the device in place. The esophageal balloon, positioned higher up, presses directly against the variceal veins running along the esophageal wall. In addition to the balloons, the tube has a lumen that opens into the stomach, allowing clinicians to drain blood and monitor whether bleeding continues.
Once the gastric balloon is inflated and pulled snug against the junction where the esophagus meets the stomach, traction is applied to keep it seated in position. Traditionally, clinicians have used various improvised methods to maintain this traction, from taping the tube to a football helmet worn by the patient to hanging weights over the bed rail. One published method uses a 500 mL bag of intravenous fluid as a standardized counterweight, providing a consistent traction force and avoiding the complications of excessive pulling or the tube slipping out of position.4PubMed Central. Alternative method of tractioning the Sengstaken-Blakemore tube The fact that something as basic as “how to keep it in place” has required creative solutions tells you a lot about the hands-on, improvised nature of this device.
The Blakemore Tube Versus the Minnesota Tube
People searching for information about the Blakemore tube will often encounter the Minnesota tube mentioned alongside it, and the two are closely related. The Minnesota tube is essentially a modified version of the Blakemore tube with two key differences. First, it has an additional suction port above the esophageal balloon. On the original Blakemore design, there is no way to suction the esophagus above the inflated balloon, which means a separate tube has to be placed alongside it to drain secretions and check for ongoing bleeding. The Minnesota tube eliminates that need. Second, the Minnesota tube’s gastric balloon holds significantly more air, up to about 500 mL compared with roughly 150 mL in the Blakemore tube.5PubMed Central. Massive Upper Gastrointestinal Bleeding
In practice, the terms are sometimes used interchangeably or grouped under the general label of “balloon tamponade devices.” Both work on the same principle and carry similar risks. The Minnesota tube’s extra suction port is a real practical advantage, particularly for monitoring whether bleeding has stopped after inflating the gastric balloon alone, before deciding whether the esophageal balloon needs inflation too.
When the Blakemore Tube Gets Used
The Blakemore tube is not a first-line treatment. Modern management of variceal bleeding begins with medications that reduce portal pressure and with endoscopic therapy, most commonly band ligation, where small rubber bands are placed around varices to choke off blood flow. The Blakemore tube enters the picture when these measures fail. In cases where endoscopic variceal ligation cannot stop the hemorrhage, balloon tamponade serves as a bridge, buying time until a more definitive intervention can be performed.6PubMed Central. Management of Refractory Variceal Bleed in Cirrhosis
In a Korean study of 66 patients who received Blakemore tubes after endoscopic treatment had failed or was not possible, the tube successfully controlled the hemorrhage in about three-quarters of cases.7PubMed Central. Outcomes of patients treated with Sengstaken-Blakemore tube for uncontrolled variceal hemorrhage That success rate sounds encouraging, but it comes with an important caveat: the bleeding it stops is temporary by design. The tube is meant to stay in for hours, not days. Once balloons are deflated, rebleeding is common, which is why the real purpose of the device is to stabilize someone long enough for a procedure like a transjugular intrahepatic portosystemic shunt (TIPS) or repeat endoscopy to be arranged.8PubMed Central. Role of emergency transjugular intrahepatic portosystemic shunts
Complications and Why They Matter
The Blakemore tube’s reputation is shadowed by the serious complications it can cause. The most feared is esophageal perforation, a rare but potentially fatal event that can occur if the esophageal balloon is overinflated or if the gastric balloon is accidentally inflated within the esophagus itself. Other documented complications include aspiration pneumonia (from secretions pooling above the balloon and entering the lungs), mucosal necrosis from prolonged pressure on the esophageal wall, and gastric ulceration from the balloon pressing against the stomach lining.9PubMed Central. Esophageal Rupture and Mediastinitis Following Blakemore Tube Tamponade: A Cardiothoracic Emergency and Protocol-Based Prevention
The risk climbs when the tube is left in for extended periods. One review noted that complications become especially concerning when tamponade lasts more than 24 hours or when the tube is placed by inexperienced staff.10PubMed Central. Self-expandable metal stents in the treatment of acute esophageal variceal bleeding The esophageal balloon, in particular, requires careful pressure monitoring to avoid tissue damage. Researchers have worked on techniques for continuous pressure monitoring of the esophageal balloon to prevent necrosis and perforation, reflecting the fact that this remains an active safety concern even decades after the device was introduced.11PubMed Central. Novel technique for continuous pressure monitoring of esophageal balloon in balloon tamponade device for acute variceal bleed
Airway protection is another major concern. Patients receiving a Blakemore tube are typically intubated first, meaning a breathing tube is placed in the windpipe before the Blakemore tube goes into the esophagus. This is not just a precaution. These patients are often actively vomiting blood, may be drowsy or confused from liver failure, and are at high risk of inhaling blood or secretions into their lungs. The combination of a bleeding, critically ill patient and a large foreign body in the esophagus makes airway management non-negotiable.
The Rise of Self-Expanding Metal Stents
The device most directly challenging the Blakemore tube’s remaining role is the self-expanding metal stent, or SEMS. These are mesh tubes, typically covered in a membrane, that are deployed into the esophagus where they expand to press against the vessel wall and compress the bleeding varices from within. Unlike balloon tamponade, the stent does not require external traction, does not carry the same risk of esophageal perforation from overinflation, and can stay in place for longer periods.
A multicenter randomized controlled trial directly compared esophageal stents to balloon tamponade in patients whose variceal bleeding had failed to respond to standard endoscopic and medical treatment. The results were striking: therapy was successful in about two-thirds of the stent group compared with only one in five patients in the balloon tamponade group. Bleeding control overall was also substantially higher with stents, at 85% versus 47%. Serious adverse events trended lower in the stent group as well.12PubMed. Esophageal balloon tamponade versus esophageal stent in controlling acute refractory variceal bleeding: A multicenter randomized, controlled trial These findings have led several expert groups to recommend stents over balloon tamponade where they are available, though cost and availability remain barriers in many hospitals.
Early reports on covered SEMS were already suggesting they could serve as an effective alternative to balloon tamponade with fewer complications.13PubMed Central. Self-expandable metal stents in the treatment of acute esophageal variceal bleeding The trajectory is clear: for hospitals that stock them and have staff experienced in placing them, esophageal stents are increasingly the preferred rescue device. But the Blakemore tube has not disappeared, in part because stents are not universally available and because many clinicians trained in the past two decades have more familiarity with balloon tamponade.
A Procedure Few Clinicians Practice
One of the uncomfortable truths about the Blakemore tube is that most physicians will rarely, if ever, place one. Variceal bleeding severe enough to fail endoscopic therapy is relatively uncommon, and among those cases, the window where a Blakemore tube is the right choice is narrow. This creates a classic problem in emergency medicine: a high-stakes procedure that providers encounter so infrequently they may not feel confident performing it.
Research on this gap is sobering. In a simulation study, emergency medicine residents who attempted to place a Blakemore tube without any refresher performed poorly, with only about one in eight achieving a minimum passing score. Residents who watched a brief instructional video immediately beforehand performed far better, with roughly six in ten passing, a nearly twelve-fold improvement in the odds of successful placement.14PubMed Central. Just‐in‐time clinical video review improves successful placement of Sengstaken‐Blakemore tube by emergency medicine resident physicians: A randomized control simulation‐based study The implication is that for a procedure where mistakes can be lethal, many providers are essentially winging it unless they have just been coached.
Simulation-based training programs have shown they can significantly boost confidence and competence. One curriculum for critical care fellows found that knowledge scores roughly doubled and simulation performance more than doubled after completing the program. But the same study found that skills deteriorated noticeably: more than half of participants could no longer meet the minimum passing standard just six months later.15PubMed Central. Gastroesophageal Balloon Tamponade Simulation-Based Mastery Learning Curriculum for Critical Care Fellows This rapid decay of procedural skill for something you almost never do in real life is a significant patient-safety concern and one reason some institutions have moved toward stocking self-expanding stents instead, whose deployment is considered technically simpler.
Other simulation programs have targeted the same problem. One reported significant increases in self-rated confidence for tube placement, management, and removal after hands-on training sessions.16PubMed Central. Sengstaken-Blakemore Tube Placement: A Simulation-Based Training Program for a High-Acuity, Low-Frequency Procedure The consistent theme across this research is that the Blakemore tube is a procedure that demands regular refresher training in a way that the healthcare system does not always provide.
Nursing Care and the Bedside Reality
The Blakemore tube is not just a procedure; it is an ongoing nursing challenge. Once the tube is placed, a nurse is essentially tethered to the patient, monitoring balloon pressures, checking for signs of ongoing or renewed bleeding, managing the traction apparatus, suctioning the airway, and watching for complications like balloon migration. These patients are critically ill, often in the intensive care unit, frequently sedated and on a ventilator.
A review of nursing practice around Blakemore tubes found that care was often “ad hoc and reliant on local knowledge and experience,” rather than guided by standardized, evidence-based protocols.17PubMed Central. The treatment of oesophageal varices using a Sengstaken-Blakemore tube: considerations for nursing practice Given how rarely the device is used, it is not surprising that many ICU nurses may encounter it once or twice in a career. The absence of well-disseminated guidelines adds another layer of risk to a device whose safety is already highly dependent on the skill of the team managing it. The psychological toll on the patient should not be overlooked, either. Being awake or semi-awake with a large tube in your esophagus, balloons inflated inside your body, and traction pulling from your mouth is deeply uncomfortable and frightening.
Use in Children
The Blakemore tube is occasionally used in pediatric patients, though the evidence base is small and the scenarios are extreme. In a series of 19 children, most had variceal bleeding related to biliary atresia or portal vein thrombosis. The tube controlled bleeding effectively in many cases, but the complication profile was notable: pressure necrosis of the lips and cheeks occurred in nearly a third of the children, gastric mucosal ulceration developed in several, and about a third of the children ultimately died, though from their underlying conditions rather than from the tube itself. Among the survivors, most eventually went on to definitive treatments like liver transplantation or surgical shunt procedures.18Journal of Pediatric Surgery. Use of the Sengstaken-Blakemore tube in children
Pediatric use poses extra challenges. Adult-sized tubes do not fit small children, so modifications are sometimes needed. The facial pressure necrosis seen in the pediatric series is likely related to the proportionally larger tube size relative to a child’s face and the difficulty of maintaining traction without causing tissue damage at the point where the tube exits the mouth. The takeaway is that while the Blakemore tube can be genuinely life-saving in children who are bleeding to death, it is a last resort with significant morbidity even when it works.
Beyond Varices
Though the Blakemore tube was designed for variceal hemorrhage, clinicians have occasionally used it for non-variceal bleeding in the lower esophagus. In at least one documented case, the gastric balloon alone was used to compress a non-variceal bleeding vessel near the junction of the esophagus and stomach, achieving hemostasis through direct mechanical pressure while acid-suppressing medication supported clot formation. Using only the gastric balloon reduced the risk associated with inflating the esophageal balloon.19PubMed Central. Sengstaken-Blakemore tube for non-variceal distal esophageal bleeding refractory to endoscopic treatment: a case report & review of the literature Balloon tamponade devices have also been reported as therapeutic in venous bleeding from conditions like Mallory-Weiss tears and ulcerated esophagitis, situations where the bleeding source happens to sit in the right anatomical location for the balloon to reach it.20Case Reviews in Surgery. Minnesota Tube Utility in Non-Variceal Distal Esophageal Hemorrhage Refractory to Endoscopic and Endovascular Intervention
These off-label uses remain uncommon and are restricted to case reports rather than large studies. They highlight an interesting feature of the device: its mechanism is purely physical. It does not depend on what is causing the bleeding, only on whether the bleeding source is in a location where balloon pressure can reach it. That mechanical simplicity is part of what keeps the Blakemore tube relevant in emergencies where more sophisticated technology has failed or is not available.
Remote Settings and Aeromedical Retrieval
One scenario where the Blakemore tube’s simplicity becomes an advantage is in remote or resource-limited settings. In rural or outback environments, a patient with massive upper gastrointestinal bleeding may be hours away from an endoscopy suite. A case report from Australian retrieval medicine describes the use of a Blakemore tube in exactly this scenario, stabilizing a hemodynamically unstable patient during a long aeromedical transfer. The report also raises practical complications unique to this setting: no radiology available to confirm the balloon is in the correct position, changes in balloon pressure caused by altitude during flight, the difficulty of maintaining traction in a moving aircraft, and the extended time the device must remain in place during long transfers.21PubMed Central. Sengstaken-Blakemore tube in critical upper gastrointestinal bleeding: Implications for aeromedical retrieval
The altitude effect is a detail worth pausing on. Gas expands at lower atmospheric pressure, and an aircraft cabin at cruising altitude has lower pressure than ground level. That means the air inside a Blakemore tube balloon will expand as the aircraft climbs, potentially overinflating the balloon and increasing the risk of mucosal damage or perforation. Retrieval teams have to actively monitor and adjust balloon volumes during flight. It is a vivid example of how a device designed for a hospital ICU does not always translate cleanly into other environments, yet may still be the only tool available.