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English Abstract
Journal Article
[Total parathyroidectomy, autoimplant and cryopreservation for the treatment of hyperparathyroidism of renal origin in children and young adults].
OBJECTIVES: To describe our initial experience in the treatment of hyperparathyroidism (HPP) of renal cause using total or subtotal parathyroidectomy, autoimplant and cryopreservation in pediatric patients. Secondary HPP is the increased function of the parathyroid hormone (PTH) due to an abnormal phosphocalcic metabolism in patients with chronic renal failure (CRF). This situation produces increased bone resorption resulting in osteodystrophy and endovascular calcifications. Surgical treatment is aimed to diminish the level of PTH in CRF patients, to avoid HPP complications.
METHODS AND MATERIALS: Descriptive, monocentric and retrospective study of a case series of patients with secondary and tertiary hyperparathyroidism, who went through total or subtotal parathyroidectomy, autoimplant and cryopreservation between 2009 and 2016. We analyzed the following variables: age, calcemia, PTH, phosphatemia, alkaline phosphatase (ALP), follow-up and complications. The continuous variables are expressed in median and interquartile range or in mean and SD, according to their distribution. The categorical variables were expressed in percentages and frequencies (repeated sentence).
RESULTS: Number of patients included: 13. Mean age of the patients was 16.7 years old. Preoperative median calcium dosage was 9.1 mg/dl (IQR: 8.9-9.5). Median PTH was 2,600 pg/ml (IQR: 1,400 pg/ml to 2,785 pg/ml). Intraoperatory dosage of PTH reported a median drop of 86.6% in the first 15 minutes (IQR: 80.5-95.9). After the first 48 hours, median calcemia was 9 mg/dl (IQR: 7.7-9.4) and median PTH was 40 pg/ml (IQR: 20-113). We did not identify intraoperatory complications. In the immediate post operatory stage, mean IV calcium therapy was 4 days (SD: 2.39). Median time of follow-up was 18 months (IQR 9-36). Two patients had hungry bone syndrome and one patient had a recurrence of the pathology as remote post operatory complications. After a year, median calcemia, was 9 mg/dl (IQR: 7.6-9.3) and median PTH was 50 pg/ml (IQR: 28.5-108). The decrease in PTH and ALP were statistically significant with p value < 0.05.
CONCLUSION: In our study, total parathyroidectomy with auto implant is a safe and effective option for the treatment of secondary and tertiary hyperparathyroidism in pediatric patients. This could also prevent bone complications.
METHODS AND MATERIALS: Descriptive, monocentric and retrospective study of a case series of patients with secondary and tertiary hyperparathyroidism, who went through total or subtotal parathyroidectomy, autoimplant and cryopreservation between 2009 and 2016. We analyzed the following variables: age, calcemia, PTH, phosphatemia, alkaline phosphatase (ALP), follow-up and complications. The continuous variables are expressed in median and interquartile range or in mean and SD, according to their distribution. The categorical variables were expressed in percentages and frequencies (repeated sentence).
RESULTS: Number of patients included: 13. Mean age of the patients was 16.7 years old. Preoperative median calcium dosage was 9.1 mg/dl (IQR: 8.9-9.5). Median PTH was 2,600 pg/ml (IQR: 1,400 pg/ml to 2,785 pg/ml). Intraoperatory dosage of PTH reported a median drop of 86.6% in the first 15 minutes (IQR: 80.5-95.9). After the first 48 hours, median calcemia was 9 mg/dl (IQR: 7.7-9.4) and median PTH was 40 pg/ml (IQR: 20-113). We did not identify intraoperatory complications. In the immediate post operatory stage, mean IV calcium therapy was 4 days (SD: 2.39). Median time of follow-up was 18 months (IQR 9-36). Two patients had hungry bone syndrome and one patient had a recurrence of the pathology as remote post operatory complications. After a year, median calcemia, was 9 mg/dl (IQR: 7.6-9.3) and median PTH was 50 pg/ml (IQR: 28.5-108). The decrease in PTH and ALP were statistically significant with p value < 0.05.
CONCLUSION: In our study, total parathyroidectomy with auto implant is a safe and effective option for the treatment of secondary and tertiary hyperparathyroidism in pediatric patients. This could also prevent bone complications.
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