R W Gutekunst

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Thyroid volume of 1397 German and 303 Swedish adults were estimated by sonography. Thyroid size of 6-16 year old Germans (n = 619) was determined and compared with findings on palpation. Thyroid volume was more than twice as great in German (21.4 +/- 15.6 ml, mean +/- SD) than in Swedish adults (10.1 +/- 4.9 ml). The echopattern was abnormal in 16% of the(More)
Urinary iodine excretion is currently the most convenient laboratory marker of iodine deficiency. Accelerating international interest in correcting this condition demands rapid, simple methods for assessment and monitoring. We describe two adaptations of the Sandell-Kolthoff reaction, in which urine is first digested with chloric acid and iodine then(More)
The value of ultrasonography compared with established diagnostic procedures was investigated by reviewing medical records of 92 patients (88 women and 4 men, age 11-81 years, mean age 47) with lymphocytic thyroiditis. Clinical manifestations of the disease and serum antimicrosomal antibodies and TSH were determined in all patients. The thyroid was examined(More)
Oral iodized oil is the major alternative to iodized salt for correcting endemic iodine deficiency. This study responds to a need for better guidelines in its use. Schoolchildren, aged 6-11 yr, from a severely iodine-deficient area of Algeria received iodized poppy seed oil (Lipiodol) in a single oral dose containing 120, 240, 480, or 960 mg iodine (groups(More)
Immunometric assays were developed for thyrotropin and thyroglobulin using time-resolved fluorescence as the measurement signal. The assays were suitable for measurements in serum/plasma or in dry blood spots (3 mm diameter). Both assays have acceptable coefficients of variation for dry blood spots (intra-assay median CV < 10%, interassay CV < 15%) in the(More)
The thyroid volume (by ultrasonographic volumetry) was estimated in 4,254 schoolchildren and adolescents 6-18 years of age from 12 districts of Slovakia and urinary iodine (by dry alkaline ashing followed by spectrophotometry) in 1,174 spot urine samples. No differences in thyroid volume or in iodine excretion between individual districts were found.(More)
An immunocompetent 59-year-old man developed sinusitis over a 6- to 8-month period after cutting down a rotted maple tree (Acer sp.). A polypoid obstruction with a bloody drainage was evident in his right nasal cavity. A computed tomographic scan showed an opacification of the maxillary sinus. Surgery was performed to remove a fungus ball that had extended(More)
BACKGROUND Iodine deficiency during pregnancy and infancy is the world's most common preventable cause of mental retardation. Previous studies have shown a high incidence of goiter and low groundwater iodine concentrations in northern Israel. OBJECTIVE We examined the relationship between low groundwater iodine and iodine deficiency in pregnant women and(More)