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Diagnosis and treatment of diabetic autonomic neuropathy

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Abstract

Diabetic autonomic neuropathy (DAN) is associated with a markedly reduced quality of life and poor prognosis. The manifestations of DAN cause multiple symptoms and involve the 1) cardiovascular system: resting tachycardia, reduced heart rate variability and circadian rhythm of heart rate and blood pressure, painless myocardial ischemia/ infarction, orthostatic hypotension, exercise intolerance, perioperative instability, sudden death; 2) respiratory system: reduced ventilatory drive to hypercapnia/ hypoxemia, sleep apnea; 3) gastrointestinal tract: esophageal motor dysfunction, diabetic gastroparesis, gallbladder atony, diabetic enteropathy, colonic hypomotility, anorectal dysfunction; and 4) genitourinary tract: diabetic cystopathy, erectile dysfunction.

Treatment is based on four cornerstones: 1) causal treatment aimed at near-normoglycemia; 2) treatment based on pathogenetic mechanisms; 3) symptomatic treatment; and 4) avoidance of risk factors and complications. Pharmacologic treatment of symptomatic DAN may be difficult, due to limited efficacy and frequent adverse reactions. First-line treatments include midodrine for orthostatic hypotension, prokinetic drugs for gastroparesis, broad-spectrum antibiotics for diabetic diarrhea, and sildenafil for erectile dysfunction. Prior to an adequate symptomatic treatment a thorough risk-benefit estimate, aimed at maintaining the patient’s quality of life, is required.

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Ziegler, D. Diagnosis and treatment of diabetic autonomic neuropathy. Curr Diab Rep 1, 216–227 (2001). https://doi.org/10.1007/s11892-001-0037-3

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