Purpose: To evaluate the impairment of optic path caused by radiotherapy for nasopharyngeal carcinoma (NPC).
Methods: Visual evoked potential was used to evaluate the functional impairment of optic path by an 8 MV linear accelerator or 60Co gamma-ray radiotherapy in 63 (23 women and 40 men) patients with nasopharyngeal carcinoma before radiotherapy, at the end of radiotherapy, 6 months and 1, 2 and 3 years after their radiotherapy respectively.
Results: In the female group, the latency of VEP elicited by the three types of elements significantly delayed 2 and 3 years after radiotherapy than that before radiotherapy, at the end of radiotherapy, 6 months and 1 year after radiotherapy; there were no significant difference among VEP amplitudes elicited by the three types of elements before and after radiotherapy. In the male group, the latency of VEP elicited by the medium and the small elements significantly delayed 1 year after radiotherapy than that before radiotherapy and at the end of radiotherapy, the VEP latency elicited by the small elements was significantly prolonged 3 years after radiotherapy compared to that just after radiotherapy, while the VEP amplitude elicited by the large elements was significantly attenuated 1 year after radiotherapy compared to those before and just after radiotherapy.
Conclusions: In the female group, the significant prolongation of VEP latency happened at the end of radiotherapy and lasted for 3 years, while the VEP amplitude did not change significantly during the 3 years after radiotherapy. It indicates that the sustained impairment by radiation within the female visual nerve system starts at the end of radiotherapy, but the impairment was mild. In the male group, the significant prolongation of VEP latency mostly happened 1 or 2 years after radiotherapy. It was shown that the radiotherapy for nasopharyngeal carcinoma certainly injured the optic path, and there was difference in the impairment between the two sexes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1023/a:1026221628241 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Role of Hypoxia Induced by Medicinal Plants; A Revolutionary Era of Cellular and Molecular Herbal Medicine in Neuroblastoma Treatment.
Front Biosci (Landmark Ed)
December 2024
Department of Medical Biology, Faculty of Medicine, Ankara Yildirim Beyazit University (AYBU), 06800 Ankara, Turkey.
As one of the most common solid pediatric cancers, Neuroblastoma (NBL) accounts for 15% of all of the cancer-related mortalities in infants with increasing incidence all around the world. Despite current therapeutic approaches for NBL (radiotherapies, surgeries, and chemotherapies), these approaches could not be beneficial for all of patients with NBL due to their low effectiveness, and some severe side effects. These challenges lead basic medical scientists and clinical specialists toward an optimal medical interventions for clinical management of NBL.
View Article and Find Full Text PDFProgress of Immune Checkpoint Inhibitors Therapy for pMMR/MSS Metastatic Colorectal Cancer.
Onco Targets Ther
December 2024
Department of Oncology, Affiliated Dalian Third People's Hospital of Dalian Medical University, Dalian, Liaoning Province, 116033, People's Republic of China.
Immunotherapy is one of the research hotspots in colorectal cancer field in recent years. The colorectal cancer patients with mismatch repair-deficient (dMMR) or high microsatellite instability (MSI-H) are the primary beneficiaries of immunotherapy. However, the vast majority of colorectal cancers are mismatch repair proficient (pMMR) or microsatellite stability (MSS), and their immune microenvironment is characterized by "cold tumors" that are generally insensitive to single immunotherapy based on immune checkpoint inhibitors (ICIs).
View Article and Find Full Text PDFEditorial: Reviews in: nuclear medicine 2023.
Front Med (Lausanne)
December 2024
Department of Physics, Faculty of Science, Minia University, Minia, Egypt.
The potential role of HPV oncoproteins in the PD-L1/PD-1 pathway in cervical cancer: new perspectives on cervical cancer immunotherapy.
Front Oncol
December 2024
Department of Radiotherapy Oncology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China.
Cervical cancer (CC) is a common malignant tumour of the female reproductive system that is highly harmful to women's health. The efficacy of traditional surgery, radiotherapy and chemotherapy is limited, especially for recurrent and metastatic CC. With continuous progress in diagnostic and treatment technology, immunotherapy has become a new approach for treating CC and has become a new therapy for recurrent and metastatic CC.
View Article and Find Full Text PDFPrediction model construction for the occurrence of LARS after neoadjuvant therapy combined with laparoscopic total mesorectal excision in male patients with mid-low rectal cancer.
Front Oncol
December 2024
Department of Basic Medicine, Sichuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, China.
Background: Neoadjuvant chemoradiotherapy for rectal cancer improves surgical outcomes and reduces recurrence but can cause low anterior resection syndrome (LARS), affecting quality of life. This study aims to predict the risk of LARS in male patients with mid-low rectal cancer after laparoscopic total mesorectal excision (TME).
Methods: Clinical data from 203 male patients with mid-low rectal cancer who underwent neoadjuvant therapy and laparoscopic resection were collected.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!