View clinical trials related to Pituitary Neoplasms.
Filter by:Pleuropulmonary blastoma (PPB) is a rare malignant neoplasm of the lung presenting in early childhood. Type I PPB is a purely cystic lesion, Type II is a partially cystic, partially solid tumor, Type III is a completely solid tumor. Treatment of children with PPB is at the discretion of the treating institution. This study builds off of the 2009 study and will also seek to enroll individuals with DICER1-associated conditions, some of whom may present only with the DICER1 gene mutation, which will help the Registry understand how these tumors and conditions develop, their clinical course and the most effective treatments.
Growth hormone secreting pituitary adenomas(GHomas) produce excessive GH, stimulating excessive insulin like growth factor 1(IGF-1) synthesis in the liver, thus causing multiple systemic complications. The life expectancy of patients with untreated GHomas is shortened by ten years. The treatment goal of GHomas is to shrink the tumor volume and normalize GH and IGF-1. Under current treatment, only 50-70% of patients get remission. Rosiglitazone is a widely used oral antidiabetic medicine. The investigator's preliminary data showed that rosiglitazone decreased the synthesis of GH and IGF-1 in rat pituitary tumor cells GH3 and hepatocytes respectively. The investigator plan to investigate the efficacy of rosiglitazone in the treatment of patients with GHomas who have not been alleviated by other therapies.
Several studies have been reported that heart rate is known to be associated with prognosis in chronic diseases and acute diseases. For example, a decrease in heart rate following myocardial infarction may lead to a higher mortality rate. It is also known to predict heart failure, diabetic neuropathy, and even depression. The combined pituitary function test artificially induces hypoglycemia to observe the secretion of pituitary hormone. The degree of change in heart rate during hypoglycemia can predict the adequacy of the test, and heart rate can be changed according to the characteristic of the tumor. Also, the prognosis can be predicted based on this. In our study, we used a licensed device approved by KFDA (Korea Food and Drug Administration) to measure heart rate variability in patients with pituitary adenoma.
Transnasal transsphenoidal (TNTS) resection of pituitary tumors involves wide fluctuation in hemodynamic parameter and causes hypertension and tachycardia due to intense noxious stimuli during various stages of surgery. None of routinely used anesthetic agents effectively blunts the undesirable hemodynamic responses, and therefore usually there is a need to use increased doses of anesthetic agents. Dexmedetomidine (DEX) an α-2 adrenergic receptor agonist, because its sympatholytic and antinociceptive properties may ensure optimal intraoperative hemodynamic stability during critical moments of surgical manipulation. In addition, DEX reduced the anesthetic requirement with rapid recovery at the end of surgery. The main aim of the study was to evaluate the effect of DEX on perioperative hemodynamics, anesthetic requirements
To find out whether oral antibiotics given after transsphenoidal endoscopic surgery for pituitary adenoma improves sinus and nasal symptoms, reduces the incidence of infection (sinusitis), and helps mucosal healing in the nasal passages.
The purpose of this study is to observe predictors of pituitary tumor recurrence and markers of persistent disease activity through computerized collection of comprehensive demographic, therapeutic, pathologic and outcome information on patients harboring pituitary mass lesions of all types.
Use of dexmedetomidine in pituitary tumor resection surgery as adjuvant drug and its relation to cortisol levels during postoperative period.
Due to lack of hormone overproduction in non-functioning pituitary adenomas (NFPAs), only the symptomatic adenomas or large adenomas with proven growth and risk for symptoms in near future will undergo pituitary surgery. The remaining adenomas are monitored regularly. Operation of these large adenomas will rarely remove all tumour tissue, and there is also a risk of worsening of pituitary function. Often, adenomas with the highest growth potential are operated several times and some also need radiation therapy, providing additional risk for pituitary failure. Unlike some of the hormone-producing adenomas, there is no established pharmacological treatment for NFPAs. However, there are a few non-randomized studies suggesting that treatment with dopamine agonists may slow growth, and also induce tumour shrinkage. At present, cabergoline is the dopamine agonist most widely used in the treatment of pituitary adenomas secreting prolactin. Aim is to study the effect of medical treatment with cabergoline in non-functioning pituitary adenomas on the change in tumour volume.
The purpose of this four-arm randomized controlled study is to determine whether eliminating glucocorticoids (GC) replacement in perioperative period in surgical patients with sellar lesion could result in similar or better outcomes comparing to traditional replacement therapy, regarding postoperative recovery of pituitary function and other postoperative complications (infection, pain, quality of life, recurrence). Surgical patients of our center with MRI-confirmed diagnosis of sellar lesion will be enrolled, insulin tolerance test (ITT) will be performed for assessment of the pituitary function at enrollment. Patients with normal pituitary function will be randomized into non-GC replacement group (group A) and low-dose GC replacement group (group B), while patients with impaired pituitary function will be randomized into low-dose GC replacement group (group C) and high-dose GC replacement group (group D). The primary outcome is the hypothalamic-pituitary-adrenal (HPA) -axis function of the patients, evaluated by plasma cortisol and adrenocorticotropic hormone (ACTH) levels. The secondary outcomes include the hypothalamic-pituitary-thyroid (HPT) axis function (TSH, thyroid-stimulating hormone, free T3, free T4), postoperative water-electrolyte balance, infection, recurrence and health-related quality of life.
The purpose of this research study is to determine the utility of educational materials designed to inform patients of their pituitary condition, in an effort to assist the patients, families, and staff deal with pituitary tumours and related conditions in the best way possible. We have developed a website, informational videos, and a brochure for pituitary tumour patients and their families. The primary outcome measures will be 1) the level of knowledge that patients have of their condition before and after reviewing the materials provided; and 2) ease of use and user satisfaction of the materials. We hypothesize that our informative multimedia educational package will not only improve the health literacy and self-efficacy of patients and their families, but will also improve quality of care.