Table 1 The multiple organ manifestations of 32 MEM patients
| Â | CPEO N (%) | MELAS N (%) | KSS N (%) | MIDD N (%) | LHN N (%) | Total: N (%) |
|---|---|---|---|---|---|---|
Onset manifestation | ||||||
 Otolaryngology | ||||||
  Hearing loss | 6(40) | 5(100) | 4(80) | 4(100) | 0(0) | 19(59.4) |
  Tinnitus | 1(6.7) | 2(40) | 2(40) | 1(25) | 0(0) | 6(18.8) |
  Auditory agnosia | 0(0) | 1(20) | 0(0) | 0(0) | 0(0) | 1(3.1) |
 Ophthalmology | ||||||
  Ptosis | 15(100) | 1(20) | 5(100) | 0(0) | 0(0) | 21(65.6) |
  Extraocular muscle paralysis | 12(80) | 1(20) | 5(100) | 0(0) | 0(0) | 18(56.2) |
  Retinitis pigmentosa | 0(0) | 1(20) | 4(80) | 0(0) | 3(100) | 8(25) |
  Optic atrophy | 0(0) | 2(40) | 3(60) | 0(0) | 3(100) | 8(25) |
  Cataract | 3(20) | 3(60) | 0(0) | 0(0) | 0(0) | 6(18.8) |
  Eye pain | 0(0) | 3(60) | 0(0) | 0(0) | 0(0) | 3(9.4) |
 Neurology | ||||||
  Exercise intolerance | 12(80) | 2(40) | 4(80) | 0(0) | 0(0) | 18(56.2) |
  Stroke-like episode | 0(0) | 5(100) | 0(0) | 0(0) | 0(0) | 5(15.6) |
  Mental retardation | 0(0) | 1(20) | 2(40) | 2(66.7) | 0(0) | 5(15.6) |
  Headache | 0(0) | 3(60) | 0(0) | 0(0) | 0(0) | 3(9.4) |
 None-Neuromuscular system | ||||||
  Diabetes | 0(0) | 0(0) | 0(0) | 3(100) | 0(0) | 3(9.4) |
Accompanied manifestation | ||||||
 Otolaryngology | ||||||
  Dysphagia | 5(33.3) | 0(0) | 1(20) | 0(0) | 0(0) | 6(18.8) |
  Facial weakness | 4(26.7) | 0(0) | 0(0) | 0(0) | 0(0) | 4(12.5) |
 Ophthalmology | ||||||
  Hemianopsia | 0(0) | 3(60) | 0(0) | 0(0) | 0(0) | 3(9.4) |
  Glaucoma | 1(6.7) | 2(40) | 0(0) | 0(0) | 0(0) | 3(9.4) |
  Diplopia | 2(13.3) | 0(0) | 0(0) | 0(0) | 0(0) | 2(6.3) |
 Neurology | ||||||
  Palpitation | 3(20) | 3(60) | 3(60) | 0(0) | 0(0) | 9(28.1) |
  Muscular atrophy | 4(26.7) | 1(20) | 2(40) | 0(0) | 0(0) | 7(21.9) |
  Myoclonic seizures | 0(0) | 4(80) | 0(0) | 0(0) | 0(0) | 4(12.5) |
  Abnormal mental behavior | 0(0) | 2(40) | 2(40) | 0(0) | 0(0) | 4(12.5) |
  Dizziness | 0(0) | 0(0) | 0(0) | 3(100) | 0(0) | 3(9.4) |
  Limb numbness | 0(0) | 0(0) | 0(0) | 3(100) | 0(0) | 3(9.4) |
  Aphasia | 0(0) | 2(40) | 0(0) | 0(0) | 0(0) | 2(6.3) |
  Insomnia | 0(0) | 0(0) | 1(20) | 0(0) | 0(0) | 1(3.1) |
 None-Neuromuscular system | ||||||
  Acute fever | 0(0) | 3(60) | 1(20) | 0(0) | 0(0) | 4(12.5) |
  Hypermicrosoma | 2(13.3) | 1(20) | 1(20) | 0(0) | 0(0) | 4(12.5) |
  Low BMI | 2(13.3) | 1(20) | 1(20) | 0(0) | 0(0) | 4(12.5) |
  Vomit | 0(0) | 2(40) | 1(20) | 0(0) | 0(0) | 3(9.4) |
  Diarrhea or constipation | 1(6.7) | 1(20) | 0(0) | 0(0) | 0(0) | 2(6.3) |
  Depression | 2(13.3) | 0(0) | 0(0) | 0(0) | 0(0) | 2(6.3) |
  Kidney damage | 0(0) | 0(0) | 0(0) | 1(33.3) | 0(0) | 1(3.1) |
  Hypogonadism | 1(6.7) | 0(0) | 0(0) | 0(0) | 0(0) | 1(3.1) |