Acute cardiorespiratory failure, chronic obstructive pulmonary disease

Aspiration pneumonia secondary to dysphagia from cerebrovascular accident

Congestive heart failure, renal failure, reactive airway disease

Kidney failure due to hypertensive nephrosclerosis, cerebrovascular disease

Malignancy-related (n=4): metastatic squamous cell carcinoma of the lung, metastatic endometrial carcinoma with small bowel obstruction, mesothelioma of pleura and pericardium, metastatic esophageal adenocarcinoma

Multifactorial kidney failure

Necrotizing pancreatitis and purulent peritonitis

Respiratory failure, congestive heart failure, chronic hypersensitivity pneumonitis

Respiratory infection (viral) in setting of aortic stenosis and congestive heart failure

Unknown (n=3)