2025, Number 3
<< Back Next >>
Rev Mex Pediatr 2025; 92 (3)
Time to diagnosis and initiation of oncological treatment in pediatric patients with solid tumors
Rendón-Macías ME, Pozo-Almanza Y
Language: Spanish
References: 21
Page: 90-96
PDF size: 417.68 Kb.
ABSTRACT
Introduction: oncological diagnosis is often difficult, and the timeliness of treatment influences the prognosis.
Objective: to compare the time required for diagnostic confirmation and for the initiation of oncological treatment in pediatric patients with solid tumors, according to the degree of suspicion at referral and the patients' clinical conditions.
Material and methods: a total of 175 patients diagnosed with a solid tumor, treated at a tertiary care center, were studied. Patients with suspected cancer, with a histopathological diagnosis, or patients who arrived with a non-oncological diagnosis were included. The times to referral, diagnostic confirmation (Lag-t-Dx), and initiation of oncologic treatment (Lag-t-Tx) were estimated.
Results: sixty percent had central nervous system tumors, lymphomas, or bone tumors; 55.4% arrived in stages III-IV. Of the total, 78.9% had suspected cancer, 13.7% had a histopathological diagnosis, and 7.4% had another diagnosis. Eighteen patients were critically ill (10.3%). The median number of days to referral was two (0-42 days), five (0-45) for Lag-t-Dx, and eight (2-49) for Lag-t-Tx; the time was longer in patients with a non-oncological admission diagnosis (Lag-t-Dx 13 days and Lag-t-Tx 15 days, p = 0.004 and p = 0.049). Lag-t-Dx did not differ with respect to stage, but Lag-t-Tx was higher in critically ill patients.
Conclusions: in general, this study found that the time to establish diagnosis and treatment in cancer patients is similar to that in other countries but varies according to the level of suspicion and the patient's clinical condition.
REFERENCES
Rivera-Luna R, Olaya Vargas A, Velazco-Hidalgo L, Cárdenas-Cardos R, Galván Diaz C, Ponce-Cruz C et al. El abrumador problema del cáncer infantil en México. Acta Pediatr Mex. 2024; 45(5): 503-510. doi: 10.18233/apm.v45io5.2964.
Abdullaev FI, Rivera-Luna R, Roitenburd-Belacortu V, Espinosa-Aguirre J. Pattern of childhood cancer mortality in Mexico. Arch Med Res. 2000; 39: 35-31.
Zhi T, Zhang WL, Zhang Y, Wang YZ, Huang DS. Prevalence, clinical features and prognosis of malignant solid tumors in infants: a 14 year study. Bosn J Basic Med Sci. 2021; 21(5): 598-606. doi: 10.17305/bjbms.2020.5121.
Miller KD, Ostrom QT, Kruchko C, Patil N, Tihan T, Cioffi G et al. Brain and other central nervous system tumor statistics, 2021. CA Cancer J Clin. 2021; 71(5): 381-406. doi: 10.3322/caac.21693.
Veneroni L, Mariani L, Lo Vullo S, Favini F, Catania S, Vajna de Pava M et al. Symptom interval in pediatric patients with solid tumors: adolescents are at greater risk of late diagnosis. Pediatr Blood Cancer. 2013; 60(4): 605-610.
Klitbo DM, Nielsen R, Illum NO, Wehner PS, Carlsen N. Symptoms and time to diagnosis in children with brain tumors. Dan Med Bull. 2011; 58(7): A4285.
Fajardo-Gutierrez A, Sandoval-Mex AM, Mejía-Aranguré JM, Rendón-Macías ME, Martínez-García MC. Clinical and social factors that affect the time of diagnosis of Mexican children with cancer. Med Pediatr Oncol. 2002; 39: 25-31.
Fajardo-Gutiérrez A, Rendón Macías ME. Importancia del "diagnóstico temprano" en los niños con cáncer para mejorar el pronóstico: concepto con poco sustento científico. Gac Med Mex. 2018; 154(4): 520-526. doi: 10.24875/GMM.18004004.
Dang-Tan T, Franco EL. Diagnosis delays in childhood cancer: a review. Cancer. 2007; 110(4): 703-713.
Cecen E, Gunes D, Mutafoglu K, Sarialioglu F, Olgun N. The time to diagnosis in childhood lymphomas and other solid tumors. Pediatr Blood Cancer. 2011; 57(3): 392-397.
Haimi M, Peretz Nahum M, Ben Arush MW. Dealy in diagnosis of children with cancer: a retrospective study of 315 children. Pediatr Hematol Oncol. 2004; 21(1): 37-48.
Chukwu BF, Ezenwosu OU, Ikefuna AN, Emodi IJ. Diagnostic delay in pediatric cancer in Enugu, Nigeria: a prospective study. Pedatr Hematol Oncol. 2015; 32(2): 164-171.
Abdelkhalek E, Sherief L, Kamal N, Soliman R. Factors associated with delayed cancer diagnosis in egyptian children. Clin Med Insights Pediatr. 2014; 162(5): 1448-1453.
Shay V, Farral-Valesvski A, Beni-Adani L, Constantini S. Diagnostic delay of pediatric brain tumors in Israel: a retrospective risk factor analysis. Child Nerv Syst. 2012; 28(1): 93-100.
Kaliki S, Vempuluru VS, Desai A, Ji X, Zou Y, Rashid R et al. Lag time between onset of first symptom and treatment of retinoblastoma: outcomes at three years from recruitment. Semin Ophthalmol. 2025: 1-7. doi: 10.1080/08820538.2025.2491004.
Nindyastuti H, Rusmawatiningtyas D, Makrufardi F, Supriyadi E. Lag time to diagnosis as a predictor of mortality in children with extraocular retinoblastoma: experience from developing country. Asia Pac J Clin Oncol. 2022; 18(6): 706-734. doi: 10.1111/ajco.13767.
Dassi N, Cappellano AM, de Sousa FIS, Puccini RF, da Silva NS, Strufaldi MWL. Unlocking delays: revealing barriers to early diagnosis of childhood central nervous system tumors in an upper-middle-income country. Childs Nerv Syst. 2024; 40(11): 3545-3552. doi: 10.1007/s00381-024-06629-9.
Mullen CJR, Barr RD, Franco EL. Timeliness of diagnosis and treatment: the challenge of childhood cancers. Br J Cancer. 2021; 125(12): 1612-1620. Erratum in: Br J Cancer. 2021; 125(8): 1178. doi: 10.1038/s41416-021-01548-x.
Li T, Kong X, He D. Epidemiology and clinical features of childhood malignant solid tumors in a single center in southwest China over 24 years. BMC Pediatr. 2025; 25(1): 12.
Trama A, Geerdes EE, Demuru E, De Angelis R, Karim-Kos HE, Troussard X et al. Survival of European children, adolescents and young adults diagnosed with haematological malignancies in the period 2000-2013: Results from EUROCARE-6, a population-based study. Eur J Cancer. 2025; 222: 115336.
Miguel Llordes G, Medina Pérez VM, Curto Simón B, Castells-Yus I, Vázquez Sufuentes S, Schuhmacher AJ. Epidemiology, diagnostic strategies, and therapeutic advances in diffuse midline glioma. J Clin Med. 2023; 12(16): 5261. doi: 10.3390/jcm12165261.