M Serrano-Dueñas

Summary

Affiliation: Neurological Service
Country: Ecuador

Publications

  1. ncbi request reprint Use of primidone in low doses (250 mg/day) versus high doses (750 mg/day) in the management of essential tremor. Double-blind comparative study with one-year follow-up
    Marcos Serrano-Dueñas
    Movement Disorders Clinic, Neurological Service of Carlos Andrade Marín Hospital, Faculty of Medicine Pontificia, Universidad Catolica del Ecuador, PO Box 17 03 1694 Quito, Ecuador
    Parkinsonism Relat Disord 10:29-33. 2003
  2. ncbi request reprint [The eye-lid reflex in hemifacial spasms. Study of 57 patients]
    M Serrano-Dueñas
    Servicio de Neurología del Hospital Carlos Andrade Martín Instituto Ecuatoriano de Seguridad Social
    Neurologia 14:149-53. 1999
  3. ncbi request reprint [Sialorrhea in patients with Parkinson. A six year prospective study]
    M Serrano-Dueñas
    Clínica de Trastornos del Movimiento, Servicio de Neurologia, Hospital Carlos Andrade Marin, Quito, Ecuador
    Rev Neurol 37:623-6. 2003
  4. ncbi request reprint Fluoxetine-induced tremor: clinical features in 21 patients
    M Serrano-Dueñas
    Servicio de Neurología del Hospital Carlos Andrade Marín, Instituto Ecuatoriano de Seguridad Social, Facultad de Medicina de la Pontificia, Universidad Catolica del Ecuador, Quito, Ecuador
    Parkinsonism Relat Disord 8:325-7. 2002
  5. ncbi request reprint Validation and cross-cultural adjustment of PDQL-questionnaire, Spanish version (Ecuador) (PDQL-EV)
    Marcos Serrano-Dueñas
    Abnormal Movements Clinic, Neurology Department, Carlos Andrade Marin Hospital, Quito, Ecuador
    Parkinsonism Relat Disord 10:433-7. 2004
  6. ncbi request reprint Delirium in Parkinson's disease patients. a five-year follow-up study
    Marcos Serrano-Dueñas
    Abnormal Movement Disorders Unit, Neurological Service, Hospital Carlos Andrade Marin, Quito Ecuador
    Parkinsonism Relat Disord 11:387-92. 2005
  7. ncbi request reprint High altitude headache. A prospective study of its clinical characteristics
    M Serrano-Dueñas
    Movement Disorders Clinic, Neurological Service, Hospital Carlos Andrade Marín and, Medicine Faculty, Pontificia Universidad Catolica del Ecuador, Quito, Ecuador
    Cephalalgia 25:1110-6. 2005
  8. ncbi request reprint High-altitude headache
    Marcos Serrano-Dueñas
    Carlos Andrade Marin Hospital, Movement Disorders Unit, Neurological Service, Quito, Ecuador
    Expert Rev Neurother 7:245-8. 2007
  9. ncbi request reprint Psychometric characteristics of PIMS--compared to PDQ-39 and PDQL--to evaluate quality of life in Parkinson's disease patients: validation in Spanish (Ecuadorian style)
    Marcos Serrano-Dueñas
    Neurological Service, Hospital Carlos Andrade Marin, Ecuador
    Parkinsonism Relat Disord 14:126-32. 2008
  10. ncbi request reprint [Clonidine versus propranolol in the treatment of essential tremor. A double-blind trial with a one-year follow-up]
    M Serrano-Dueñas
    Neurological Service Carlos Andrade Marín Hospital, Quito, Ecuador
    Neurologia 18:248-54. 2003

Detail Information

Publications21

  1. ncbi request reprint Use of primidone in low doses (250 mg/day) versus high doses (750 mg/day) in the management of essential tremor. Double-blind comparative study with one-year follow-up
    Marcos Serrano-Dueñas
    Movement Disorders Clinic, Neurological Service of Carlos Andrade Marín Hospital, Faculty of Medicine Pontificia, Universidad Catolica del Ecuador, PO Box 17 03 1694 Quito, Ecuador
    Parkinsonism Relat Disord 10:29-33. 2003
    ..Low doses of primidone (250 mg/day) were equally or more effective than high doses (750 mg/day) in the control of essential tremor; this response was maintained for 12 months and furthermore, demonstrated fewer undesirable effects...
  2. ncbi request reprint [The eye-lid reflex in hemifacial spasms. Study of 57 patients]
    M Serrano-Dueñas
    Servicio de Neurología del Hospital Carlos Andrade Martín Instituto Ecuatoriano de Seguridad Social
    Neurologia 14:149-53. 1999
    ..It is a polysynaptic reflex with a primary component or R1, which is of pontine origin, and a secondary component or R2 probably originating on the pons and lateral bulb...
  3. ncbi request reprint [Sialorrhea in patients with Parkinson. A six year prospective study]
    M Serrano-Dueñas
    Clínica de Trastornos del Movimiento, Servicio de Neurologia, Hospital Carlos Andrade Marin, Quito, Ecuador
    Rev Neurol 37:623-6. 2003
    ..The sialorrhea has been recognised as one of the manifestations of Parkinson's disease, with a frequency of up to 80%. The evolution of patients with sialorrhea is unknown...
  4. ncbi request reprint Fluoxetine-induced tremor: clinical features in 21 patients
    M Serrano-Dueñas
    Servicio de Neurología del Hospital Carlos Andrade Marín, Instituto Ecuatoriano de Seguridad Social, Facultad de Medicina de la Pontificia, Universidad Catolica del Ecuador, Quito, Ecuador
    Parkinsonism Relat Disord 8:325-7. 2002
    ..We believe that this tremor phenomenon is due to the involvement of the red nucleus and the inferior olivary nucleus through their projections to the thalamus and the spinal cord...
  5. ncbi request reprint Validation and cross-cultural adjustment of PDQL-questionnaire, Spanish version (Ecuador) (PDQL-EV)
    Marcos Serrano-Dueñas
    Abnormal Movements Clinic, Neurology Department, Carlos Andrade Marin Hospital, Quito, Ecuador
    Parkinsonism Relat Disord 10:433-7. 2004
    ..To validate the Ecuadorian Spanish-language version of the Parkinson's Disease Quality of Life Questionnaire (PDQL-EV)...
  6. ncbi request reprint Delirium in Parkinson's disease patients. a five-year follow-up study
    Marcos Serrano-Dueñas
    Abnormal Movement Disorders Unit, Neurological Service, Hospital Carlos Andrade Marin, Quito Ecuador
    Parkinsonism Relat Disord 11:387-92. 2005
    ..To assess the significance of delirium in parkinsonian patients in a 5-year follow-up case-control study with three groups of patients: Parkinsonian and Delirium (PDG), Parkinsonian (PG) and Control (CG)...
  7. ncbi request reprint High altitude headache. A prospective study of its clinical characteristics
    M Serrano-Dueñas
    Movement Disorders Clinic, Neurological Service, Hospital Carlos Andrade Marín and, Medicine Faculty, Pontificia Universidad Catolica del Ecuador, Quito, Ecuador
    Cephalalgia 25:1110-6. 2005
    ..8%; concurrent symptoms referred to, anorexia 26.8%, irritability 26.5%, and finally pessimism and anxiety feelings 33.2 and 29.5%, respectively. We believe that elements provided by us must lead to a new official AH diagnosis criterion...
  8. ncbi request reprint High-altitude headache
    Marcos Serrano-Dueñas
    Carlos Andrade Marin Hospital, Movement Disorders Unit, Neurological Service, Quito, Ecuador
    Expert Rev Neurother 7:245-8. 2007
    ..These are neurogenic problems secondary to hypoxia caused by hypobarism and, in all events, have a common denominator: hypoxia and a fundamental white organ, the brain...
  9. ncbi request reprint Psychometric characteristics of PIMS--compared to PDQ-39 and PDQL--to evaluate quality of life in Parkinson's disease patients: validation in Spanish (Ecuadorian style)
    Marcos Serrano-Dueñas
    Neurological Service, Hospital Carlos Andrade Marin, Ecuador
    Parkinsonism Relat Disord 14:126-32. 2008
    ..Analyze PIMS (Parkinson's impact scale) properties following the recommendations of the Scientific Advisory Committee of the Medical Outcomes Trust...
  10. ncbi request reprint [Clonidine versus propranolol in the treatment of essential tremor. A double-blind trial with a one-year follow-up]
    M Serrano-Dueñas
    Neurological Service Carlos Andrade Marín Hospital, Quito, Ecuador
    Neurologia 18:248-54. 2003
    ..To compare the efficacy of clonidine vs propranolol in the control of essential tremor, a double-blind randomized controlled trial with a one year follow-up was designed to obtain 80 % power and 95 % confidence level...
  11. ncbi request reprint [Treatment of sialorrhea in Parkinson's disease patients with clonidine. Double-blind, comparative study with placebo]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marín Instituto Ecuatoriano de Seguridad Social, Quito, Ecuador
    Neurologia 18:2-6. 2003
    ..The traditional treatment with anticholinergic medication is capable of triggering important neuropsychiatric complications...
  12. ncbi request reprint Neuroleptic malignant syndrome-like, or--dopaminergic malignant syndrome--due to levodopa therapy withdrawal. Clinical features in 11 patients
    Marcos Serrano-Dueñas
    Servicio de Neurología del Hospital Carlos Andrade Marín and Facultad de Medicina de la Pontificia, Universidad Catolica del Ecuador, PO Box 17 03 1694, Quito, Ecuador
    Parkinsonism Relat Disord 9:175-8. 2003
    ..45 years who developed this problem after a 92.72 h latency period. If patients with PD develop severe rigidity, stupor and hyperthermia, L-dopa withdrawal should be suspected and the dopaminergic drug restarted as soon as possible...
  13. ncbi request reprint [Hemifacial spasm, quality of life and depression]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marín Instituto Ecuatoriano de Seguridad Social, Quito, Ecuador
    Rev Neurol 29:1108-11. 1999
    ..This approach is in keeping with the concepts of health of the World Health Organization. Hemifacial spasm is a disorder of movement with a prevalence of 7.4 and 14.5 per 100,000 men and women respectively...
  14. ncbi request reprint [Chronic tension-type headache and depression]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marin, Facultad de Medicina de la Pontificia Universidad Católica del Ecuador, Quito, Ecuador
    Rev Neurol 30:822-6. 2000
    ..Tension-type headache (TTH) is the commonest head pain to be seen in medical practice and is erroneously thought to have a psychogenic origin...
  15. ncbi request reprint [Acute pharmacological test with clonidine for the tremor in patients with Parkinson disease]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marín Instituto Ecuatoriano de Seguridad Social, Facultad de Medicina, Pontífica Universidad Católica del Ecuador, Quito, Ecuador
    Rev Neurol 30:910-3. 2000
    ..Of all the typical symptoms of this disease, the tremor is the most difficult to control. It is therefore necessary to seek drugs to solve this serious problem...
  16. ncbi request reprint [Acute mountain sickness: the clinical characteristics of a cohort of 615 patients]
    M Serrano-Dueñas
    Servicio de Neurología Hospital Carlos Andrade Marín Instituto Ecuatoriano de Seguridad Social Facultad de Medicina Pontificia Universidad Católica de Ecuador, Quito
    Med Clin (Barc) 115:441-5. 2000
    ..Study cohort prospective in the shelters of Cotopaxi and Chimborazo (4,800 and 5,000 m), in the Ecuatorian Andes...
  17. ncbi request reprint [Parkinson's disease, side affected and depression]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marín Instituto Ecuatoriano de Seguridad Social y Facultad de Medicina de la Pontificia Universidad Católica del Ecuador, Quito, Ecuador
    Rev Neurol 31:1109-12. 2000
    ..It has been suggested that patients with right-sided Parkinsonism have more depression than those with left-sided...
  18. ncbi request reprint [Parkinsonism or Parkinson's disease unmasked by pentoxifylline?]
    M Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marin, Instituto Ecuatoriano de Seguridad Social
    Neurologia 16:39-42. 2001
    ..The possibility of pentoxifylline causing an imbalance between D1 and D2 receptor stimulation and producing pharmacologic parkinsonism, or rather, the possibility of pentoxifylline unmasking subclinical Parkinson's disease are discussed...
  19. ncbi request reprint [Neuroleptic malignant syndrome in patients with non-herpetic viral encephalitis. Study of 7 cases]
    Marcos Serrano-Dueñas
    Servicio de Neurologia, Hospital Carlos Andrade Marin, Facultad de Medicina de la Pontificia Universidad Católica del Ecuador, Quito, Ecuador
    Med Clin (Barc) 118:62-4. 2002
    ..Our aim was to consider the possibility that patients with viral non-herpetic viral encephalitis develop the neuroleptic malignant syndrome (NMS) and determine the indispensable elements to diagnose it...
  20. ncbi request reprint [A comparison between low doses of amitriptyline and low doses of fluoxetin used in the control of depression in patients suffering from Parkinson's disease]
    M Serrano-Dueñas
    Servicio de Neurología Hospital Carlos Andrade Marin, Quito, Ecuador
    Rev Neurol 35:1010-4. 2002
    ..It is thought that this is due to a dysfunction in the orbitofrontal and dorsolateral circuits, together with hypometabolism in the orbital, caudate nucleus and frontal dorsolateral tract regions...
  21. ncbi request reprint Concurrent validation of the 21-item and 6-item Hamilton Depression Rating Scale versus the DSM-IV diagnostic criteria to assess depression in patients with Parkinson's disease: an exploratory analysis
    Marcos Serrano-Dueñas
    Abnormal Movement Disorder Clinic, Neurological Service, Hospital Carlos Andrade Marin, Quito, Ecuador
    Parkinsonism Relat Disord 14:233-8. 2008
    ....