Browsing by Author "Lucero Quezada, Christian Xavier"

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Disostosis mandibulofacial (síndrome de treacher collins). Reporte de un caso
(Universidad de Cuenca, 2019) Piedra Bravo, Yadira Lucía; Lucero Quezada, Christian Xavier
Mandibulofacial dysostosis or Treacher Collins syndrome is a rare congenital craniofacial disorder of autosomal dominant inheritance. Although its phenotypic expression is very variable, the diagnosis is fundamentally clinical. This article ineludes a review of the scientific literature on the relevant aspeets of Treacher Collins syndrome and reports a clinical case of interest.
Prevalencia de discopatía degenerativa de la columna lumbar diagnosticada por resonancia magnética, Hospital "José Carrasco Arteaga" de la ciudad de Cuenca. Enero 2015 - enero 2017
(2018-11-11) Lucero Quezada, Christian Xavier; Pineda Álvarez, Rosario Elizabeth; Auquilla Díaz, Nancy Eulalia
General objetive: To establish the prevalence of degenerative disc disease present in the lumbar spine, diagnosed by magnetic resonance in the Hospital "José Carrasco Arteaga" of the city of Cuenca, in the period January 2015 - January 2017. Methodology: A descriptive-retrospective investigation was made of the results of examinations of patients who attended an MRI of the lumbar spine at the "José Carrasco Arteaga" Hospital in the city of Cuenca, from January 2015 to January 2017. The investigation was carried out with a total of 2018 patients. Results: According to the radiological reports in the period January 2015 - January 2017, 2018 lumbar spinal magnetic resonance examinations were performed, of which 89.6% (1809), report a diagnosis of degenerative disc disease. Of these, 52.4% (948) are male, and 47.6% (861) are female, with an age range between 56 and 75 years. Of the 1809 results of degenerative disc disease of the lumbar spine, 79.6% (1440) presented a primary diagnostic of unspecified lumbago; followed by 9.8% (177) with a prior diagnostic of lumbar intervertebral disc disorders with myelopathy, and 9.2% (167) with lumbago with sciatica. 1.4% (25) had a diagnostic of scoliosis. Degenerative discopathy occurs in five levels depending on the amount of herniated material: bulging, protrusion, herniation, extrusion and sequestration. Of the 1809 results of magnetic resonance imaging of the lumbar spine with a diagnostic of lumbar degenerative disc disease, 63.3% (1145) present herniated material in the degree of protrusion. Like any of the levels of degenerative discopathy, protrusion occurs in two ways: specific and en block. When presented specifically, the most affected is the intervertebral disc L5-S1; when presented as a block, intervertebral discs L3-S1 are affected. Generally disc degeneration, or Modic type change, is completely related to degenerative discopathy. The present investigation shows that only 21.5% presents disc degeneration with diagnosis of degenerative disc disease, while 68.7% do not. Being able to establish, well, that they are pathologies that do not always relate to each other. Conclusion: Magnetic resonance imaging is the ideal study to determine the prevalence of degenerative disc disease, due to the quality of images obtained and the ease of studying both soft tissues and the bony part of the lumbar spine
Prevalencia de discopatía degenerativa en columna lumbar diagnosticada mediante resonancia magnética en pacientes de 25 a 85 años en el Hospital del Río, Cuenca, enero 2022 – junio 2024
(Universidad de Cuenca, 2025-09-05) Rea Valdivieso, Ismael Alexander; Román Valarezo, Judy Maylen; Lucero Quezada, Christian Xavier
Background: Degenerative disc disease is a common condition that has had a significant impact on people’s quality of life, becoming one of the most prevalent causes of medical consultation. Low back pain is the most common symptom; approximately 80% of the population will experience this pain at some point in their lives. Magnetic resonance imaging (MRI), with a sensitivity of 75% and specificity of 77%, has established itself as the diagnostic technique of choice as it is non-invasive, radiation-free, and provides high-resolution images for clinical assessment of bone structures, spinal cord, and adjacent soft tissues. (1)(2)(3) General objective: To determine the prevalence of degenerative disc disease diagnosed by magnetic resonance imaging in patients aged 25 to 85 years at Hospital del Río in Cuenca, from January 2022 to June 2024. Methodology: Descriptive and cross-sectional. Data was collected from radiological reports of patients aged 25 to 85 years who underwent magnetic resonance imaging of the lumbar spine at Hospital del Río from January 2022 to June 2024, totaling 636 radiological reports. Results: Out of 636 lumbar MRI radiological reports, it was determined that 589 patients showed degenerative disc disease (92,6%), being more predominant in males (61,1%), in an age range of 35-44 years (24,4%). The most recurrent lesion was disc protrusion (30,7%) in multiple directions (72,8%), mainly affecting the L4-S1 spinal segments (22,6%).
Prevalencia de hallazgos imagenológicos en radiografía anteroposterior y lateral de columna cervical en pacientes de 20 a 85 años. Hospital Monte Sinaí – Cuenca enero 2022 – marzo 2024
(Universidad de Cuenca, 2025-02-10) Tenezhañay Herrera, Karina Elizabeth; Muñoz Urgilez, Andrea Nohemy; Lucero Quezada, Christian Xavier
Background: The World Health Organization has confirmed that 222 million have neck pain, which is mostly related to pathologies of the cervical spine. The most frequent imaging findings are: cervical lordosis, which is the loss or decrease in the physiological curvature of the spine. Osteophytes are bony projections that occur on the edges of the vertebrae due to a degenerative process; degenerative disc disease is the progressive wear of intervertebral discs; the decrease in bone density causes the bone to become more fragile and spongier, making it more prone to fractures. (1-5) Objective: To determine the prevalence of imaging findings in anteroposterior and lateral radiographs of the cervical spine in patients aged 20 to 85 years at Monte Sinai Hospital, in Cuenca, from January 2022 to March 2024. Methodology: This is a retrospective, cross-sectional, descriptive study. Results: Out of 666 AP and lateral radiographic studies of the cervical spine, 655 patients reported imaging findings (98.3%), the pathologies were more common in females (65.5%), in the age range of 40 to 49 years (20.4%). The recurrent imaging finding is loss of cervical lordosis (36.3%); these findings affect more than one vertebral space, and the most frequent is C3-C7. Conclusions: Imaging findings are a lot more common in females in the age group of 40 to 49 years. The cervical region, specifically between C3 and C7 vertebrae, is the most affected, and the most common finding is that of loss of cervical lordosis.