Velasco LA, Villaseñor-Fierro ET, Saucedo-Rodriguez LR, Apreza-González CI, De la Rosa-Bibiano R, Rubio-Arellano ED

Language: Spanish
References: 30
Page: 51-56
PDF size: 767.31 Kb.

ABSTRACT

Introduction. Demodicosis is a term that groups cutaneous conditions caused by mites from the Demodex genus, like D. folliculorum and D. brevis. It has a variable prevalence and it depends on the population studied, there are no reports of it in Mexico. This study is designed to determine the prevalence, main signs and symptoms associated to periocular Demodex infestation of patients from a third level hospital.
Material and Methods. This is a descriptive and transversal study that included 100 patients attending a high specialty ophthalmologic unit at the Hospital Civil de Guadalajara Fray Antonio Alcalde from September to November 2015. We did a descriptive sociodemographic analysis and a demodicosis periocular prevalence calculus.
Results. The total sample included 92 patients with mite presence, but infection could be proved in only 44% of them with an index greater or equal to 50%. Males were the most affected. The presence of cylinders and intense periocular pruritus were the most frequently associated signs and symptoms.
Discussion. The role of the pathogen Demodex has not been completely determined. It is believed that it may play a role in the pathogenesis when it starts replication. After it enters the dermis it is considered responsible or contributing factor for the development of blepharitis or blepharoconjunctivitis. Its prevalence is variable and depends on the population studied; this is unknown in our environment. Norn and cols. performed studied a group of 400 patients and the prevalence was of 48%. Galvis and cols. described a prevalence of 42.1% in a 128 patient study. Both describe similar results as those described in our study (44%).

REFERENCES

1. Norn MS. Demodex folliculorum. Incidence and possible pathogenic role in the human eyelid. Acta Ophthalmologica suppl 1970; 108: 1-85.

2. Wong J L, Niño-Pecina A, Ruiz-Quintero N, Naranjo-Tackman R. Prevalencia de demodicosis en pacientes con blefaroconjuntivitis crónica multitratada. Rev Mex Oftalmol 2006; 80 (2): 61.

3. Roman Pereira Y, Verona Ugando L, Hernandez Conde M, Diaz Diaz Y. Panoramica actual en la blefaritis por Demodex folliculorum. Revista Mision Milagro 2009

4. Rodriguez A E, Ferrer C, AlioJ L. Demodex y blefaritis cronica. Arch Soc Esp Oftalmol 2005; 80

5. Galvis Ramírez V, Tello Hernandez A, et al. The prevalence of Demodex Folliculorum Infection in patients attending a general ophthalmological consultation, Rev. Salud Pública; 13(6); 990-997, 2011.

6. Corredor Osorio R. y cols. Blefaritis por Demodex folliculorum. Rev. Fac. Med.UNAM. Vol 43. N4 Julio-Agosto 2000.

7. Vasallo F, Martín-Rabadán P. Parasitación en pestañas por ácaros. Enferm Infecc Microbiol Clin 1995; 13: 121-122.

8. Jingbo L, Scheffer C; Do you know Demodex?. Ophthalmology Managment. Sept 2010.

9. English FP, Nutting WB. Demodicosis of ophthalmic concern. Am J Ophthalmol. 1981;91(3):362–372.

10. Gao YY, Di Pascuale MA, Li W, et al. High prevalence of Demodex in eyelashes with cylindrical dandruff. Invest Ophthalmol Vis Sci. 2005;46(9):3089 –3094.

11. Dougherty JM, McCulley JP. Bacterial lipases and chronic blepharitis. Invest Ophthalmol Vis Sci 1986;27:486-91

12. Rivera N., Molina P., Torres A., Determinación de índice de infestación por Demodex spp, en pacientes con blefaritis crónica y en pacientes sin otra patología ocular, Rev Chilena Infectol 2013:30(5):494- 501

13. Liu J, Sheha H, Tseng S C. Pathogenic role of Demodex mites in blepharitis. Curr Opin Allergy Clin Immunol. 2010; 10 (5): 505-10.

14. Hom MM, Mastrota KM, Schachter SE; Demodex; Optom Vis Sci; 2013 Jul; 90(7):e 298-205

15. Norn MS; Demodex Folliculorum. Incidence and possible pathogenic role in the human eyelid: Capitulo IV:Incidence in the ocular region of a clinical material. Acta Ophtalmol Suppl.1991;30-37.

16. Norn MS. Demodex folliculorum. Incidence and possible pathogenic role in the human eyelid. Acta Ophthalmologica suppl 1970; 108: 1-85.

17. Wong J L, Niño-Pecina A, Ruiz-Quintero N, Naranjo-Tackman R. Prevalencia de demodicosis en pacientes con blefaroconjuntivitis crónica multitratada. Rev Mex Oftalmol 2006; 80 (2): 61.

18. Roman Pereira Y, Verona Ugando L, Hernandez Conde M, Diaz Diaz Y. Panoramica actual en la blefaritis por Demodex folliculorum. Revista Mision Milagro 2009

19. Rodriguez A E, Ferrer C, AlioJ L. Demodex y blefaritis cronica. Arch Soc Esp Oftalmol 2005; 80

20. Galvis Ramírez V, Tello Hernandez A, et al. The prevalence of Demodex Folliculorum Infection in patients attending a general ophthalmological consultation, Rev. Salud Pública; 13(6); 990-997, 2011.

21. Corredor Osorio R. y cols. Blefaritis por Demodex folliculorum. Rev. Fac. Med.UNAM. Vol 43. N4 Julio-Agosto 2000.

22. Vasallo F, Martín-Rabadán P. Parasitación en pestañas por ácaros. Enferm Infecc Microbiol Clin 1995; 13: 121-122.

23. Jingbo L, Scheffer C; Do you know Demodex?. Ophthalmology Managment. Sept 2010.

24. English FP, Nutting WB. Demodicosis of ophthalmic concern. Am J Ophthalmol. 1981;91(3):362–372.

25. Gao YY, Di Pascuale MA, Li W, et al. High prevalence of Demodex in eyelashes with cylindrical dandruff. Invest Ophthalmol Vis Sci. 2005;46(9):3089 –3094.

26. Dougherty JM, McCulley JP. Bacterial lipases and chronic blepharitis. Invest Ophthalmol Vis Sci 1986;27:486-91

27. Rivera N., Molina P., Torres A., Determinación de índice de infestación por Demodex spp, en pacientes con blefaritis crónica y en pacientes sin otra patología ocular, Rev Chilena Infectol 2013:30(5):494- 501

28. Liu J, Sheha H, Tseng S C. Pathogenic role of Demodex mites in blepharitis. Curr Opin Allergy Clin Immunol. 2010; 10 (5): 505-10.

29. Hom MM, Mastrota KM, Schachter SE; Demodex; Optom Vis Sci; 2013 Jul; 90(7):e 298-205

30. Norn MS; Demodex Folliculorum. Incidence and possible pathogenic role in the human eyelid: Capitulo IV:Incidence in the ocular region of a clinical material. Acta Ophtalmol Suppl.1991;30-37.