Parkinson's disease: neurological manifestations and possibilities for neurosurgery

Parkinson's disease is caused by the progressive degeneration of nerve cells that produce dopamine, a neurotransmitter essential for motor coordination. The most common symptoms of Parkinson's disease are resting tremors, muscle rigidity, slow voluntary movements and postural instability. Furthermore, the disease can cause cognitive, emotional, sensory and autonomic changes. There are two main types of neurosurgery for Parkinson's disease: ablative surgery and deep brain stimulation (DBS). Objective: to evaluate the impact of neurosurgery for Parkinson's disease in improving motor symptoms, reducing medication side effects, preserving cognitive functions and improving patients' quality of life. Methodology: followed the PRISMA checklist. The databases used were PubMed, Scielo, Web of Science and Google Scholar. The descriptors used were: “Parkinson's disease”, “neurosurgery”, “ablation”, “deep brain stimulation” and “outcome”. The inclusion criteria were: articles that compared the two types of neurosurgery for Parkinson's disease (ablative surgery and deep brain stimulation), that evaluated clinical outcomes (motor symptoms, medication side effects, cognitive functions and quality of life) and that used standardized scales to measure these outcomes. The exclusion criteria were: articles that did not compare the two types of neurosurgery for Parkinson's disease, that did not evaluate the clinical outcomes of interest, that used non-validated or inadequate scales to measure these outcomes. Results: 15 studies were selected. Both types of neurosurgery for Parkinson's disease have been effective in improving patients' motor symptoms, especially tremors, rigidity, and bradykinesia. However, deep brain stimulation had an advantage over ablative surgery in terms of reducing medication side effects, such as motor fluctuations and dyskinesias. Deep brain stimulation was also safer and less invasive than ablative surgery, presenting fewer complications such as hemorrhage, infection, neurological deficits, and cognitive or psychiatric changes. However, deep brain stimulation showed greater improvement than ablative surgery, especially in physical, emotional and social aspects of quality of life. Conclusion: neurosurgery for Parkinson's disease is a valid therapeutic option for patients who do not respond adequately to drug treatment or who have intolerable side effects. Among the two main types of neurosurgery for Parkinson's disease, deep brain stimulation appears to be superior to ablative surgery in terms of efficacy, safety, and impact on patients' quality of life.Parkinson's disease is caused by the progressive degeneration of nerve cells that produce dopamine, a neurotransmitter essential for motor coordination. The most common symptoms of Parkinson's disease are resting tremors, muscle rigidity, slow voluntary movements and postural instability. Furthermore, the disease can cause cognitive, emotional, sensory and autonomic changes. There are two main types of neurosurgery for Parkinson's disease: ablative surgery and deep brain stimulation (DBS). Objective: to evaluate the impact of neurosurgery for Parkinson's disease in improving motor symptoms, reducing medication side effects, preserving cognitive functions and improving patients' quality of life. Methodology: followed the PRISMA checklist. The databases used were PubMed, Scielo, Web of Science and Google Scholar. The descriptors used were: “Parkinson's disease”, “neurosurgery”, “ablation”, “deep brain stimulation” and “outcome”. The inclusion criteria were: articles that compared the two types of neurosurgery for Parkinson's disease (ablative surgery and deep brain stimulation), that evaluated clinical outcomes (motor symptoms, medication side effects, cognitive functions and quality of life) and that used standardized scales to measure these outcomes. The exclusion criteria were: articles that did not compare the two types of neurosurgery for Parkinson's disease, that did not evaluate the clinical outcomes of interest, that used non-validated or inadequate scales to measure these outcomes. Results: 15 studies were selected. Both types of neurosurgery for Parkinson's disease have been effective in improving patients' motor symptoms, especially tremors, rigidity, and bradykinesia. However, deep brain stimulation had an advantage over ablative surgery in terms of reducing medication side effects, such as motor fluctuations and dyskinesias. Deep brain stimulation was also safer and less invasive than ablative surgery, presenting fewer complications such as hemorrhage, infection, neurological deficits, and cognitive or psychiatric changes. However, deep brain stimulation showed greater improvement than ablative surgery, especially in physical, emotional and social aspects of quality of life. Conclusion: neurosurgery for Parkinson's disease is a valid therapeutic option for patients who do not respond adequately to drug treatment or who have intolerable side effects. Among the two main types of neurosurgery for Parkinson's disease, deep brain stimulation appears to be superior to ablative surgery in terms of efficacy, safety, and impact on patients' quality of life

THYROID CANCER: CLINICAL EVALUATION, ENDOCRINOLOGICAL MANIFESTATIONS AND SURGICAL MANAGEMENT

Thyroid cancer is more common in women and people over 40, but it can affect anyone. There are different types of thyroid cancer, the most common being differentiated carcinomas (papillary and follicular), which have a good prognosis and respond well to treatment. The clinical evaluation of thyroid cancer involves taking anamnesis, physical examination, measuring thyroid hormones and performing imaging tests and biopsy. The main symptom of thyroid cancer is the appearance of a nodule in the cervical region, which may be palpable or visible. The main surgical modalities are total thyroidectomy, which consists of complete removal of the thyroid gland; partial thyroidectomy or lobectomy, which consists of removing only part of the gland; and lymphadenectomy, which consists of removing lymph nodes affected by cancer. Objective: to synthesize the scientific evidence available on clinical assessment, endocrinological manifestations and surgical management in thyroid cancer. Methodology: based on the PRISMA checklist, the PubMed, Scielo and Web of Science databases were consulted to identify relevant studies published in the last 10 years. The descriptors used were: “thyroid cancer”, “thyroid neoplasm”, “clinical evaluation”, “surgical management” and “endocrinological manifestations”. Original studies in English or Portuguese that addressed the clinical, endocrinological or surgical aspects of thyroid cancer in humans were included. Studies that did not meet the inclusion criteria, were duplicates, had low methodological quality or did not have access to the full text were excluded. Results: 18 studies were selected, which revealed that thyroid cancer is a disease that presents different clinical, endocrinological and surgical aspects, depending on the type, stage and response to treatment. The studies analyzed provided evidence on diagnostic methods, indications and surgical techniques, the efficacy and safety of radioactive iodine therapy, and the role of suppressive hormone therapy in differentiated thyroid cancer. Conclusion: Thyroid cancer is a heterogeneous disease that requires a multidisciplinary approach for its diagnosis and treatment. The systematic review showed that there is consistent evidence on diagnostic methods, surgical modalities and radioactive iodine therapy in differentiated thyroid cancer. However, there are gaps in knowledge about the endocrinological manifestations of thyroid cancer and therapeutic alternatives for more complex or aggressive cases. Therefore, more studies are needed to clarify these aspects and improve the clinical management of patients with thyroid cancer.Thyroid cancer is more common in women and people over 40, but it can affect anyone. There are different types of thyroid cancer, the most common being differentiated carcinomas (papillary and follicular), which have a good prognosis and respond well to treatment. The clinical evaluation of thyroid cancer involves taking anamnesis, physical examination, measuring thyroid hormones and performing imaging tests and biopsy. The main symptom of thyroid cancer is the appearance of a nodule in the cervical region, which may be palpable or visible. The main surgical modalities are total thyroidectomy, which consists of complete removal of the thyroid gland; partial thyroidectomy or lobectomy, which consists of removing only part of the gland; and lymphadenectomy, which consists of removing lymph nodes affected by cancer. Objective: to synthesize the scientific evidence available on clinical assessment, endocrinological manifestations and surgical management in thyroid cancer. Methodology: based on the PRISMA checklist, the PubMed, Scielo and Web of Science databases were consulted to identify relevant studies published in the last 10 years. The descriptors used were: “thyroid cancer”, “thyroid neoplasm”, “clinical evaluation”, “surgical management” and “endocrinological manifestations”. Original studies in English or Portuguese that addressed the clinical, endocrinological or surgical aspects of thyroid cancer in humans were included. Studies that did not meet the inclusion criteria, were duplicates, had low methodological quality or did not have access to the full text were excluded. Results: 18 studies were selected, which revealed that thyroid cancer is a disease that presents different clinical, endocrinological and surgical aspects, depending on the type, stage and response to treatment. The studies analyzed provided evidence on diagnostic methods, indications and surgical techniques, the efficacy and safety of radioactive iodine therapy, and the role of suppressive hormone therapy in differentiated thyroid cancer. Conclusion: Thyroid cancer is a heterogeneous disease that requires a multidisciplinary approach for its diagnosis and treatment. The systematic review showed that there is consistent evidence on diagnostic methods, surgical modalities and radioactive iodine therapy in differentiated thyroid cancer. However, there are gaps in knowledge about the endocrinological manifestations of thyroid cancer and therapeutic alternatives for more complex or aggressive cases. Therefore, more studies are needed to clarify these aspects and improve the clinical management of patients with thyroid cancer