Comparison of preoperative imaging techniques (thallium technetium scan and ultrasonography) and intraoperative staining (with methylene blue) in localizing the parathyroid glands. 1995

M Müslümanoğlu, and T Terzioğlu, and S Ozarmağan, and S Tezelman, and R Güloğlu
Istanbul School of Medicine, Department of General Surgery, Türkiye.

We carried out a prospective study to compare the predictive value of preoperative thallium technetium scan, ultrasound (US) and intraoperative staining of the parathyroid glands (with methylene blue) in patients with parathyroid adenoma, parathyroid hyperplasia, thyroid carcinoma and thyrotoxicosis, in the Istanbul School of Medicine, Department of General Surgery. Methylene blue was given at a dose of 5 mg/kg/body weight in a 500 ml 5% Dextrose +0.9% saline solution 1 hour before surgery. All adenomas (10 patients), hyperplastic parathyroid glands (12 patients) and 45 of 52 suppressed glands (82%) were stained. In patients with thyroid carcinoma (7) and thyrotoxicosis (5), 42 of 48 normal parathyroid glands (87%) were stained. There were no maneuver-related complications. Thallium technetium scan (TT) accurately identified 10 of 10 (100%) parathyroid adenomas and 13 of 26 (50%) hyperplastic parathyroid glands. US successfully localized 10 of 10 (100%) adenomas and 18 of 26 (66%) hyperplastic glands. Neither technique was successful in identifying normal glands. The intraoperative identification of the parathyroid glands with methylene blue was found to be an effective, safe and cost-effective technique which helps the surgeon in the dissection and shows abnormal parathyroid glands more accurately than preoperative imaging techniques.

UI MeSH Term Description Entries
D006961 Hyperparathyroidism A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES.
D006980 Hyperthyroidism Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE. Hyperthyroid,Primary Hyperthyroidism,Hyperthyroidism, Primary,Hyperthyroids
D008297 Male Males
D008751 Methylene Blue A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN. Methylthionine Chloride,Swiss Blue,Basic Blue 9,Chromosmon,Methylene Blue N,Methylthioninium Chloride,Urolene Blue,Blue 9, Basic,Blue N, Methylene,Blue, Methylene,Blue, Swiss,Blue, Urolene
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010279 Parathyroid Diseases Pathological processes of the PARATHYROID GLANDS. They usually manifest as hypersecretion or hyposecretion of PARATHYROID HORMONE that regulates the balance of CALCIUM; PHOSPHORUS; and MAGNESIUM in the body. Parathyroid Disorders,Disease, Parathyroid,Diseases, Parathyroid,Disorder, Parathyroid,Disorders, Parathyroid,Parathyroid Disease,Parathyroid Disorder
D010280 Parathyroid Glands Two pairs of small oval-shaped glands located in the front and the base of the NECK and adjacent to the two lobes of THYROID GLAND. They secrete PARATHYROID HORMONE that regulates the balance of CALCIUM; PHOSPHORUS; and MAGNESIUM in the body. Gland, Parathyroid,Glands, Parathyroid,Parathyroid Gland
D011300 Preoperative Care Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed) Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic

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