Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP)
Context. Intraoperative PTH (IOPTH) drop of more than 50% during minimally invasive parathyroidectomy (MIP) predicts the surgery success. Comparison between second- and third-generation PTH assays (PTH 2G and PTH 3G) on IOPTH decline is scarce. The aim of this study is to compare both assays and to...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Endocrinology |
| Online Access: | http://dx.doi.org/10.1155/2020/5230985 |
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| author | Marie-Hélène Gannagé-Yared Nada Younès Anne-Sophie Azzi Ghassan Sleilaty |
| author_facet | Marie-Hélène Gannagé-Yared Nada Younès Anne-Sophie Azzi Ghassan Sleilaty |
| author_sort | Marie-Hélène Gannagé-Yared |
| collection | DOAJ |
| description | Context. Intraoperative PTH (IOPTH) drop of more than 50% during minimally invasive parathyroidectomy (MIP) predicts the surgery success. Comparison between second- and third-generation PTH assays (PTH 2G and PTH 3G) on IOPTH decline is scarce. The aim of this study is to compare both assays and to determine the predictors of IOPTH decline. Methods. 112 patients (of which 72.3% females) underwent MIP by the same surgeon. Age, sex, body mass index (BMI), pre- and postoperative serum calcium, creatinine, 25(OH)D levels, PTH at baseline (PTH T0), and PTH at 10 minutes after adenoma resection (PTH T10) were recorded. Both PTH 2G and PTH 3G assays were assessed using the Diasorin assays. Results. The mean age was 56.1 ± 14.7 years. Mean value of BMI, preoperative calcium, 25(OH)D, and CKD-EPI-eGFR were, respectively, 26.8 ± 4.8 kg/m2, 110.9 ± 7.9 mg/L, 19.3 ± 9.2 ng/mL, and 88.6 ± 25.6 mL/min/1.73 m2. PTH 2G and PTH 3G assays were well correlated at PTH T0 and PTH T10 (respectively, correlation coefficient 0.74 and 0.72 for intraclass correlation type 3). The median PTH fall was, respectively, of 79.9% and 82.5% for PTH 2G and PTH 3G. Multivariate analysis using the combined PTH 2G and PTH 3G as a dependent variable with 2 repeated measurements (at PTH 0 and PTH 10) showed a significant effect of preoperative calcium on IOPTH fall (p=0.001, effect size 0.13), while no significant effects were observed for sex, age, BMI, and 25(OH)D. Conclusion. PTH 2G and PTH 3G assays resulted in a similar drop in IOPTH values. Elevated preoperative calcium levels are the only independent predictor of IOPTH decline. Further studies are needed to determine other factors that can influence PTH kinetics. |
| format | Article |
| id | doaj-art-a52627703dee4d97a6722fa9d2fa841d |
| institution | OA Journals |
| issn | 1687-8337 1687-8345 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Endocrinology |
| spelling | doaj-art-a52627703dee4d97a6722fa9d2fa841d2025-08-20T02:23:05ZengWileyInternational Journal of Endocrinology1687-83371687-83452020-01-01202010.1155/2020/52309855230985Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP)Marie-Hélène Gannagé-Yared0Nada Younès1Anne-Sophie Azzi2Ghassan Sleilaty3Endocrinology Department, Faculty of Medicine, Saint Joseph University, Beirut, LebanonEndocrinology Department, Faculty of Medicine, Saint Joseph University, Beirut, LebanonEndocrinology Department, Faculty of Medicine, Saint Joseph University, Beirut, LebanonDepartment of Biostatistics, Faculty of Medicine, Saint-Joseph University, Beirut, LebanonContext. Intraoperative PTH (IOPTH) drop of more than 50% during minimally invasive parathyroidectomy (MIP) predicts the surgery success. Comparison between second- and third-generation PTH assays (PTH 2G and PTH 3G) on IOPTH decline is scarce. The aim of this study is to compare both assays and to determine the predictors of IOPTH decline. Methods. 112 patients (of which 72.3% females) underwent MIP by the same surgeon. Age, sex, body mass index (BMI), pre- and postoperative serum calcium, creatinine, 25(OH)D levels, PTH at baseline (PTH T0), and PTH at 10 minutes after adenoma resection (PTH T10) were recorded. Both PTH 2G and PTH 3G assays were assessed using the Diasorin assays. Results. The mean age was 56.1 ± 14.7 years. Mean value of BMI, preoperative calcium, 25(OH)D, and CKD-EPI-eGFR were, respectively, 26.8 ± 4.8 kg/m2, 110.9 ± 7.9 mg/L, 19.3 ± 9.2 ng/mL, and 88.6 ± 25.6 mL/min/1.73 m2. PTH 2G and PTH 3G assays were well correlated at PTH T0 and PTH T10 (respectively, correlation coefficient 0.74 and 0.72 for intraclass correlation type 3). The median PTH fall was, respectively, of 79.9% and 82.5% for PTH 2G and PTH 3G. Multivariate analysis using the combined PTH 2G and PTH 3G as a dependent variable with 2 repeated measurements (at PTH 0 and PTH 10) showed a significant effect of preoperative calcium on IOPTH fall (p=0.001, effect size 0.13), while no significant effects were observed for sex, age, BMI, and 25(OH)D. Conclusion. PTH 2G and PTH 3G assays resulted in a similar drop in IOPTH values. Elevated preoperative calcium levels are the only independent predictor of IOPTH decline. Further studies are needed to determine other factors that can influence PTH kinetics.http://dx.doi.org/10.1155/2020/5230985 |
| spellingShingle | Marie-Hélène Gannagé-Yared Nada Younès Anne-Sophie Azzi Ghassan Sleilaty Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) International Journal of Endocrinology |
| title | Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) |
| title_full | Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) |
| title_fullStr | Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) |
| title_full_unstemmed | Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) |
| title_short | Comparison between Second- and Third-Generation PTH Assays during Minimally Invasive Parathyroidectomy (MIP) |
| title_sort | comparison between second and third generation pth assays during minimally invasive parathyroidectomy mip |
| url | http://dx.doi.org/10.1155/2020/5230985 |
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