Zimmerman, Donald

A variety of drugs including certain antibiotics have been implicated in causing acute pancreatitis.1 So far, there have been three reported cases in adults in which erythromycin was identified as a possible cause of acute pancreatitis.2-4 We report the first case of erythromycin-induced acute pancreatitis in childhood. We suggest a possible pathophysiological mechanism based on the known motilin agonist properties of erythromycin. CASE REPORT A 12-year-old girl was brought to the Emergency and Trauma Unit, with acute, crampy abdominal pain and vomiting. These symptoms had started 1 hour earlier, approximately 30 minutes after the deliberate ingestion of 20 tablets of erythromycin (Erythromycin Base Filmtab, 250 mg, Abbot Laboratories, Pharmaceutical Products Division, North Chicago, IL) after an argument with her parents and her boyfriend.

In the article entitled Iodine-Induced Hyperthyroidism in a Newborn that appeared in the March 1995 issue of Pediatrics, the iodine content of povidone-iodine is estimated at 10 mg/mL rather than the estimate that we employed which was 10% or 10 g/dL. Thus, we are in agreement that the neonate in our report received 2.88 g rather than 28.8 g, which we reported. Donald Zimmerman, MD Mayo Clinic & Mayo Foundation Pediatric Endocrinology Rochester, MN 55905

While hypothyroidism is a common result of neonatal iodine excess, hyperthyroidism may occur, possibly primarily in cases of marked iodine excess.

To address the role of atrial natriuretic factor (ANF) in hypothyroidism in the control of cardiorenal-endocrine function during volume loading, the relationships between atrial pressure, ANF, the renin-angiotensin-aldosterone system, and renal hemodynamic and excretory function were examined during and after acute 10% body wt saline volume infusion in pentobarbital-anesthetized hypothyroid dogs (n = 8). Hormonal changes before and after thyroidectomy were also evaluated. Four to 6 wk after thyroidectomy, ANF decreased and arginine vasopressin (AVP) and plasma renin activity (PRA) increased. Acute saline volume expansion caused an increase in ANF and decreases in AVP and PRA. Atrial pressure increased throughout volume expansion. Despite the absence of an increase in glomerular filtration rate (GFR) during volume expansion, urinary sodium excretion increased due to a marked rise in fractional excretion of sodium. These studies demonstrate that in hypothyroidism 1) ANF is decreased; 2) despite the decrease in basal ANF, increases in atrial pressure can stimulate relase of ANF; 3) despite the absence of an increase in GFR during volume expansion, fractional excretion of sodium increases associated with an increase in ANF; and 4) a lack of an increase in GFR during volume expansion is not related to an inability to increase ANF.

Abstract Background Papillary thyroid cancer (PTC) has a generally favourable prognosis, but elderly patients with distant metastases or extracapsular invasion fair poorly. In small studies with short follow-up, young patients presenting with such extracapsular invasion and pulmonary metastases have faired well. This retrospective study was undertaken to clarify the long-term prognosis of such patients with advanced PTC. Methods Twenty-one children and young adults (median age 14 (range 6–20) years) presenting with PTC and pulmonary metastases were treated at a single institution between 1947 and 1998. Mean maximal tumour diameter was 4·65 cm. Initial surgical treatment consisted of total thyroidectomy (n = 16), subtotal thyroidectomy (n = 4) and isthmectomy (n = 1), coupled with a variety of lymph node dissections (n = 20). After operation, 19 patients were treated with ablative and incremental doses of iodine-131 until disease free. All patients were placed on suppressive thyroid hormone after operation. Mean length of follow-up was 21 years (range 3 months to 47 years). Follow-up was less than 3 years in four patients. All patients have undergone post-treatment radionucleotide and radiological evaluation. Results Nine of the 21 patients developed recurrent disease. The risk of recurrence at 5 years was 39 (95 per cent confidence interval 14–57) per cent. Eight had cervical lymph node recurrence and no patient developed recurrent pulmonary disease. All patients with identifiable recurrent disease underwent selective lymph node resection, which involved multiple resections in four. At follow-up, 18 patients remain completely free of disease, one patient has recurrent cervical node disease and two patients have died. The disease-free survival at 5 years was 95 (95 per cent confidence interval 86–100) per cent. Cause-specific death occurred in a single patient who died from extensive local disease at age 29 years after 12 years of multiple cervical lymph node recurrences. Conclusion A stepwise treatment approach including total thyroidectomy, high-dose iodine-131 treatment and early surgical reintervention for suspected local recurrent disease allows long-term survival and frequent ‘cure’ for young patients with PTC and concomitant pulmonary metastases.

AbstractEighty‐two children and adolescents (18 males, 64 females; median age 14 years) surgically treated for Graves’ disease at a single institution between 1979 and 1993 were retrospectively reviewed. Most of the patients (74%) coming to thyroidectomy had been treated medically for a period ranging from 2 to 80 (median 15) months. Bilateral subtotal thyroid resection was the most frequently performed procedure (86%). Postoperatively, no permanent recurrent laryngeal nerve palsy or permanent hypocalcemia occurred. Operative mortality was zero. With a median follow‐up of 8.3 years, recurrent hyperthyroidism occurred in five patients (6%), one of whom required reoperation. Most children and adolescents with Graves’ disease can be rendered euthyroid by nonsurgical treatment options. However, prolonged and ineffective medical treatment should be avoided in these patients who are in the formative years of their lives. Surgical treatment, when indicated and employed, offers young patients with Graves’ disease a safe, rapid, definitive, cost‐effective treatment with a high success rate.

AbstractMedical management of congenital adrenal hyperplasia (CAH) patients has led to suboptimal results in most cases. High glucocorticoid doses, often needed to suppress adrenal androgen production, may lead to signs of Cushing syndrome. Incompletely suppressed androgen levels commonly lead to premature closure of growth centers, acne, virilization, precocious puberty, irregular or absent menses, and decreased fertility in female CAH patients. A newly proposed therapy for CAH patients is bilateral adrenalectomy. Three Caucasian female patients with 21‐hydroxylase deficiency were treated with bilateral adrenalectomy. Two of the three procedures were accomplished laparoscopically. In each patient, medical management alone was unsuccessful. Two patients had salt‐losing 21‐hydroxylase deficiency. The third patient had uncontrolled hyperandrogenism complicated by obesity and glucose intolerance. All patients had low height percentiles with respect to their normalized percentiles for weight. Bone age was advanced in one patient. Androgen and renin levels were well controlled in two patients, whereas the third patient had persistent hyperandrogenism. Bilateral adrenalectomy was performed at the ages of 14, 19, and 30 years with follow‐up, to date, of 25 months, 10 months, and 26 months, respectively. Postoperatively, all patients were free from hyperandrogenism. One patient experienced one episode of urosepsis precipitating an addisonian crisis. Bilateral adrenalectomy may successfully address the problems of increasing steroid requirements and hyperandrogenism in patients with severe CAH. The ability to perform this operation laparoscopically coupled with the overall metabolic benefits make bilateral adrenalectomy a reasonable alternative to lifelong androgen suppression in select patients.