Causes of Death in Upper GI Bleeding

Primary Mechanisms of Death

Hypovolemic shock (defined as pulse >100 bpm and systolic BP <100 mmHg) carries an 80% risk of continuing bleeding or death when combined with active bleeding from a peptic ulcer, according to the American Gastroenterological Association 1, 2
Patients who become unresponsive likely experienced profound hypotension leading to inadequate tissue perfusion and oxygen delivery to vital organs (brain, heart, kidneys), as stated by the European Association for the Study of the Liver 3, 1
Upper GI bleeding can trigger or unmask sepsis, particularly in patients with underlying comorbidities (renal failure, liver failure, cardiac disease, disseminated malignancy), as noted by the American College of Gastroenterology 1, 2

Patients with underlying cardiac disease have poor tolerance for anemia and hypotension, leading to cardiac ischemia and death, according to the American Heart Association 1, 4
Comorbid diseases affecting the heart are closely related to mortality in patients hospitalized for GI bleeding, as stated by the American College of Cardiology 1, 2

If the patient had cirrhosis, acute variceal hemorrhage carries high mortality even with treatment, as noted by the European Association for the Study of the Liver 3
Variceal bleeding requires immediate vasoactive drug therapy (terlipressin, somatostatin, or octreotide) and antibiotic prophylaxis—delays are fatal, according to the American Association for the Study of Liver Diseases 3

Deaths are almost entirely restricted to patients with significant general medical diseases (cardiac failure, ischemic heart disease, renal failure, liver failure, disseminated malignancy), as stated by the American Gastroenterological Association 1, 2
Patients aged >90 years have a 30% risk of death from upper GI bleeding, according to the American College of Gastroenterology 1, 2
A Rockall score >8 is associated with high risk of death, as noted by the National Institute for Health and Care Excellence 1, 2

Active arterial bleeding from a peptic ulcer in a shocked patient carries an 80% risk of continuing bleeding or death, according to the American College of Surgeons 1, 2
Upper GI bleeding carries a 2-14% mortality risk overall, despite spontaneous cessation in 75% of cases, as stated by the Society of Critical Care Medicine 5, 6

The complete Rockall score (post-endoscopy) is the best predictive scale for mortality in upper gastrointestinal bleeding, with an area under the ROC curve of 0.73-0.81 for predicting death, superior to other scales for this specific outcome 7, 8, 9

The American Gastroenterological Association recommends using the Rockall score for predicting mortality in patients with upper gastrointestinal bleeding, with a score >8 associated with high risk of death and a score <3 indicating excellent prognosis with very low risk of rebleeding and mortality 8
The complete Rockall score has the best discriminative ability for mortality, with an area under the ROC curve of 0.73-0.81, validated in multiple countries 8
Deaths are almost completely restricted to patients with high scores reflecting significant comorbidities (renal failure, liver failure, disseminated cancer, heart disease) 8
Variables of the Rockall score that predict mortality include age (mortality 30% in >90 years vs. rare in <40 years), shock (pulse >100 bpm and systolic blood pressure <100 mmHg), comorbidities (heart failure, coronary disease, renal/hepatic failure, disseminated cancer), and endoscopic findings (active arterial bleeding in peptic ulcer with shock = 80% risk of death) 8, 9

The European Society of Gastrointestinal Endoscopy recommends using the Glasgow-Blatchford score to identify patients at very low risk who can be discharged without endoscopy, with a score ≤1 being the optimal threshold for safe discharge without intervention 7, 9
The American College of Gastroenterology suggests using the Rockall score pre-endoscopy for initial stratification of mortality, including age, shock, and comorbidities (without endoscopic findings yet) 8, 9