Table 2.

Acute and chronic conditions with AIP

A. Acute signs and symptoms during AIP attackFrequency14,15 
Abdominal pain 74%–92% 
Dark urine 81% 
Nausea and vomiting 73%–85% 
Insomnia, fatigue, weakness 70%–80% 
Musculoskeletal and other pain 72% 
Constipation 60%–70% 
Anxiety, depression, headache, trouble concentrating 50%–60% 
Hypertension, tachycardia, diaphoresis, numbness, tremulousness 40%–60% 
Fever, chills 18%–33% 
Diarrhea, heartburn, dysphoria 20%–30% 
Seizures 
A. Acute signs and symptoms during AIP attackFrequency14,15 
Abdominal pain 74%–92% 
Dark urine 81% 
Nausea and vomiting 73%–85% 
Insomnia, fatigue, weakness 70%–80% 
Musculoskeletal and other pain 72% 
Constipation 60%–70% 
Anxiety, depression, headache, trouble concentrating 50%–60% 
Hypertension, tachycardia, diaphoresis, numbness, tremulousness 40%–60% 
Fever, chills 18%–33% 
Diarrhea, heartburn, dysphoria 20%–30% 
Seizures 
B. Chronic conditions and symptoms between acute attacks in patients with long-standing, recurrent AIP episodesPrevalence in symptomatic AIP14-16 Prevalence in asymptomatic HMBS carriers16 
Pain syndrome, neuropathy 43%–100% 17%–30% 
Psychiatric symptoms 22%–82% 19% 
Hypertension 43%–73% 26% 
Chronic kidney disease 29%–64% 13% 
Seizures 9%–46% 0% 
Dark urine 5% – 
Insomnia, fatigue, weakness 10%–20% – 
Nausea 20% – 
Constipation 10% – 
Hepatocellular carcinoma 1%–9% 1.9% 
B. Chronic conditions and symptoms between acute attacks in patients with long-standing, recurrent AIP episodesPrevalence in symptomatic AIP14-16 Prevalence in asymptomatic HMBS carriers16 
Pain syndrome, neuropathy 43%–100% 17%–30% 
Psychiatric symptoms 22%–82% 19% 
Hypertension 43%–73% 26% 
Chronic kidney disease 29%–64% 13% 
Seizures 9%–46% 0% 
Dark urine 5% – 
Insomnia, fatigue, weakness 10%–20% – 
Nausea 20% – 
Constipation 10% – 
Hepatocellular carcinoma 1%–9% 1.9% 

A, incidence of symptoms and signs during an acute neurovisceral attack. B, prevalence of chronic signs and symptoms between attacks among more severely affected patients with AIP in the fourth decade of life and with multiple yearly attacks, compared with asymptomatic HMBS mutation carriers.

Adapted from references 14-16.

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