Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) has traditionally been a trauma tool for non-compressible torso hemorrhage, but its use is growing in non-trauma surgeries. In massive bleeding scenarios; such as in upper gastrointestinal (GI) hemorrhage, hypervascular pelvic tumor resections, or iatrogenic aortic/iliac injuries; REBOA can provide temporary control of bleeding to stabilize the patient. Recent case series and studies show that general surgeons can leverage REBOA (including the ultra low-profile COBRA-OS® system) to bridge patients to definitive hemostasis. The COBRA-OS®, a 4-French (Fr) balloon catheter, offers a simpler, smaller-profile alternative to earlier REBOA devices[1][2]. Below we review these emerging applications, share illustrative cases, and highlight why COBRA-OS is well-suited to the non-trauma setting.
REBOA for Massive Upper GI Hemorrhage
Massive upper GI bleeds (from ulcers or varices) can be life‐threatening when endoscopy fails or the patient is too unstable. In such cases, aortic balloon occlusion (typically in Zone I, between the left subclavian and celiac arteries) can temporarily raise central pressure and slow bleeding. This buys time for endoscopic, radiologic, or surgical hemostasis. For example, Hashida et al. describe a 45-year-old man with a bleeding duodenal ulcer who arrested from hemorrhagic shock. A REBOA catheter was rapidly placed via the femoral artery into Zone I, causing a brisk rise in blood pressure. This stabilization allowed coil embolization of the gastroduodenal artery and ultimately the patient made a full recovery[2]. In another report, partial inflation (p-REBOA) was used to control a massive GI bleed: a 46-year-old woman arrested from presumed variceal hemorrhage, received a partially inflated Zone I REBOA, and her blood pressure improved while distal perfusion was maintained, allowing planning of definitive treatment[3]. These cases illustrate that even though endoscopy is first-line for GI bleeds, REBOA can be a temporary bridge when conventional hemostasis isn’t immediately possible[2][3]. By occluding the aorta, REBOA buys critical minutes of stability for imaging or surgical intervention.
REBOA in Hypervascular Pelvic Tumor Resections
Pelvic and sacral tumors (e.g. sarcomas or giant hematomas) are often highly vascular. Surgical resection can bleed heavily, especially around the iliac vessels and presacral plexus. Several series have now used aortic balloon occlusion to limit blood loss during these resections. For instance, Luo et al. reported on 81 patients undergoing pelvic/sacral tumor surgery with prolonged aortic balloon occlusion via the femoral artery. They found that even when balloon times exceeded 60 minutes, there was no increase in complications such as limb paralysis or thrombosis, and blood loss was well controlled[4]. In fact, they observed no balloon displacements or aortic leaks, and long occlusion did not significantly worsen outcomes[4]. In practice, placing a Zone 3 REBOA (below the renal arteries) can be done prophylactically before resection: the balloon is inflated during tumor debulking to curtail pelvic back-bleeding, then deflated intermittently to perfuse the legs. Modern case series like Luo’s suggest this technique is safe and effective for complex pelvic tumors[4]. General surgeons faced with large pelvic resections (for example, advanced rectal cancer with pelvic sidewall involvement) may consider REBOA as an adjunct to minimize hemorrhage and transfusion requirements.
REBOA for Iatrogenic Iliac/Aortic Injuries
Accidental laceration of major vessels during surgery ; for example from a trocar or osteotomy ; is a dire emergency. In these scenarios, REBOA can be a lifesaving temporary measure. A recent case report described a 53-year-old woman undergoing spinal surgery who suffered a lacerated common iliac artery. She became unstable and went into pulseless arrest. Vascular surgeons rapidly exposed the femoral artery and inserted a standard REBOA catheter via an upsized sheath. Once inflated in Zone I, the balloon controlled bleeding and improved perfusion enough to allow laparotomy and repair of the iliac injury[5]. Remarkably, after 90 minutes of intermittent CPR and balloon occlusion, the patient was stabilized, the artery was repaired, and she survived without major deficits[5]. Although this example came from a neurosurgery context, it underscores a broader principle: major iatrogenic hemorrhage can occur in any operative field, and REBOA is a tool in the hemorrhage-control toolbox. In laparoscopy (e.g. hernia or gynecologic cases), trocars have occasionally injured iliac vessels. In such events, if the patient becomes exsanguinating, an aortic balloon may be inserted (usually via open femoral access) to gain a brief period of stability. General surgeons, when faced with catastrophic abdominal bleeding, should consider REBOA (ideally with a vascular/IR colleague) as an alternative to emergency thoracotomy or blind compression. Training and pre-planning (knowing how to quickly expose the femoral artery and insert the balloon) are essential, but case reports like this show it can be done and can save lives[5].
Conclusion
Recent reports highlight REBOA’s value beyond trauma ; notably in massive GI bleeding, complex pelvic tumor resections, and iatrogenic vascular catastrophes[2][5][4]. The low-profile COBRA-OS system specifically addresses many logistic challenges: smaller arterial access, no need for large wires, and a user-friendly design[1][11]. For general surgeons, this means REBOA becomes a more practical tool in the OR or ED. While data are still emerging, available case series and feasibility studies suggest that with proper training, COBRA-OS can enable swift aortic occlusion in non-trauma bleeding emergencies, potentially improving outcomes by “buying time” until definitive control is achieved[2][11].
