References: Laxative
Pediatrics. 1979 Feb;63(2):180-91.
Neonatal hypothyroidism detected by the Northwest Regional Screening Program.
LaFranchi SH, Murphey WH, Foley TP Jr, Larsen PR, Buist NR.
The Northwest Regional Screening Program to detect congenital hypothyroidism in infants born in Oregon, Montana, Alaska, and Idaho (combined birthrate of 69,000/ yr) was added to our ongoing screening program in 1975. The program utilizes dried blood filter paper specimens collected routinely in the first few days of life in all four states and again at about 6 weeks of age in Oregon only. The screening test consist of an initial thyroxine (T4) measurement; a thyroid-stimulating hormore (TSH) determination is performed on those specimens with T4 concentrations in the lowest 3% group. Serum samples obtained by venipuncture are requested for confirmation of the diagnosis. In the first two years of the program, 25 infants with primary hypothyroidism were detected amont 110,667 infants screened, a frequency of 1:4,430. Fourteen cases of thyroxine-binding globulin deficiency were also detected, a frequency of 1:7,900. Using the T4 followed by TSH testing approach, the frequency of request for repeat specimens was 0.4% in Oregon and 0.05% in the other states. The cost per specimen was $1.96. The majority of infants lacked clinical signs or symptoms of hypothyroidism; only one infant was clinically suspected of having hypothyroidism prior to detection. The most common neonatal symptoms were constipation, lethargy, and prolonged jaundice, while the most common physical signs were hypotonia, umbilical hernia, and large fontanels. Thyroid scans showed the most common etiology to be thyroid aplasia, followed by an ectopic gland, hypoplasia, and goiter. Serum T4 concentrations were lowest in those infants with aplasia, intermediate in infants with an ectopic gland or hypoplasia, and normal in the infant with the goiter. Neonatal hypothyroidism varies in degree and has several different causes; the capacity to secrete thyroid hormone,
Gut. 1993 Jun;34(6):803-7.
Colonic manometry in children with chronic intestinal pseudo-obstruction.
Di Lorenzo C, Flores AF, Reddy SN, Snape WJ Jr, Bazzocchi G, Hyman PE.
Department of Pediatrics, UCLA Medical Center, Martin Luther King Jr General Hospital, Charles Drew University of Medicine and Science, Torrance 90502.
Pressure changes were evaluated in the transverse, descending, and rectosigmoid colon of 30 children with chronic intestinal pseudo-obstruction. Twenty two had severe lifelong constipation and eight had symptoms suggesting a motility disorder exclusively of the upper gastrointestinal tract. Based on prior antroduodenal manometry, 24 children were diagnosed as having a neuropathic and six a myopathic form of intestinal pseudo-obstruction. On the day of study, endoscopy was used to place a manometry catheter into the transverse colon and intraluminal pressure was recorded for more than four hours. After a baseline recording, we gave a meal to assess the gastrocolonic response. Colonic contractions were noted in 24 children. The six children with no colonic contractions had a hollow visceral myopathy and constipation. In the children with colonic contractions, fasting motility did not differentiate children with and without constipation. After the meal, in all eight children without constipation there was (1) an increase in motility index (3.2 (SEM 0.3) mm Hg/min basal v 8.4 (SEM 1.1) mm Hg/min postprandial; p < 0.001), and (2) at least one high amplitude propagated contraction (HAPC). In the 16 constipated children with colonic contractions the motility index did not significantly increase after the meal (2.1 (SEM 0.3) mm Hg/min basal v 3.1 (SEM 0.4) mm Hg/min postprandial) and 12 of them had no HAPCs (p < 0.01 v group without constipation). In summary, in children with a clinical diagnosis of chronic intestinal pseudo-obstruction, constipation is associated with absence of HAPCs, and the gastrocolonic response or with total absence of colonic contractions
Monatsschr Kinderheilkd. 1977 Aug;125(8):791-6.
[The effect of primidone treatment of thyroid hormones in epileptic children and adolescents (author's transl)]
[Article in German]
Fichsel H, Knopfle G.
In primidon-treated patients there are significantly decreased serum concentrations of total and free thyroxin, protein bound iodine and base line serum TSH values. In primidon-treated children T3-resin test values, concentration of thyroxin-binding protein and total cholesterol are identical to those of the control group. Degree of diminution in serum concentration of protein bound iodine, total and free thyroxin and base line TSH was independant of the primidon dose per day. Probably the demonstrated alteration in the thyroid function tests studied, is mainly caused by phenobarbital, the major metabolite of primidon and not directly by unmetabolized primidon. It is suggested that the high protein-binding capacity of phenobarbital results in a competitive displacement of protein bound thyroxin comparable to that of DPH. Phenobarbital is know to be a stimulator of the drug metabolizing enzyme system in the liver. This effect may be the cause of an increased turnover of T4 which results in a decreased serum concentration of total and free T4 at last. It seems possible that there is a balance in serum concentration of thyroid hormones on a lower level. Normal euthyroid state may be presumed, if T4-secretion raises, but there is no clue for an increased pituarity response. In contrast to the normal group in primidon-treated children the base line serum TSH values are decreased. It is supposed that another effect of primidon is responsible for this fact. There may be an influence of primidon treatment on hypothalamic pituarity axis. Our findings do not indicate clearly a hypothyroid state in primidon-treated patients; further investigations should give an answer to the guestion, if side effects as tiredness, decreased impetus and constipation are not partly caused by alterations in thyroid hormone system
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