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Nakamura M, Takiguchi S, Uehara S, Tomita Y. Outcome of surgical parathyroidectomy for tertiary hyperparathyroidism in kidney transplant recipients: tertiary hyperparathyroidism should not be ignored, for the sake of precious allografts. Ren Fail 2024; 46:2333919. [PMID: 38575330 PMCID: PMC10997355 DOI: 10.1080/0886022x.2024.2333919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
Tertiary hyperparathyroidism is a complication of kidney transplantation. This complicated condition carries over from the dialysis period and varies according to the function of the transplanted allograft. Treatments include pharmacotherapy (mainly using calcimimetics) and parathyroidectomy, but calcimimetics are currently not covered by the national insurance system in Japan. Two types of parathyroidectomy can be performed: subtotal parathyroidectomy; and total parathyroidectomy with partial autograft. Both types can be expected to improve hypercalcemia. Concerns about the postoperative deterioration of allograft function are influenced by preoperative allograft function, which is even more likely to be affected by early surgery after kidney transplantation. In general, transient deterioration of allograft function after surgery is not expected to affect graft survival rate in the medium to long term. Tertiary hyperparathyroidism in kidney transplant recipients negatively impacts allograft and patient survival rates, and parathyroidectomy can be expected to improve prognosis in both kidney recipients and dialysis patients. However, studies offering high levels of evidence remain lacking.
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Affiliation(s)
- Michio Nakamura
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Shinya Takiguchi
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Saeko Uehara
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Yusuke Tomita
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
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Green RL, Fagenson AM, Karhadkar SS, Kuo LE. Does race impact outcomes after parathyroidectomy for secondary and tertiary hyperparathyroidism? Am J Surg 2023; 226:652-659. [PMID: 37453804 DOI: 10.1016/j.amjsurg.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/21/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Racial disparities in care exist for diseases with heterogeneous treatment guidelines. The impact of these disparities on outcomes after parathyroidectomy for secondary(2HPT) and tertiary hyperparathyroidism(3HPT) was explored. METHODS The 2015-2019 NSQIP datasets were used. Patients who underwent parathyroidectomy for 2HPT and 3HPT were identified and analyzed separately. Patients were stratified by race (white vs. non-white); demographics, comorbidities, and outcomes were compared. Studied outcomes included 30-day morbidity, mortality, unplanned reoperation, readmission, and postoperative length of stay(LOS). RESULTS There were 1,150 patients with 2HPT and 262 with 3HPT. For 2HPT, 65.5% were non-white; morbidity, reoperation, and prolonged LOS(>3days) occurred disproportionately more often in non-white patients. Non-white race was independently associated with morbidity; higher ASA class and alkaline phosphatase levels were associated with prolonged LOS. For 3HPT, 53.1% were non-white; a prolonged LOS(>1day) occurred disproportionately more often in non-white patients. Higher alkaline phosphatase levels were independently associated with prolonged LOS. CONCLUSION Race and markers of advanced disease negatively impact outcomes after parathyroidectomy for 2HPT and 3HPT. Attention to racial disparities and earlier referral may positively impact outcomes.
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Affiliation(s)
- Rebecca L Green
- Department of Surgery, Temple University Hospital, Philadelphia, PA, USA.
| | | | - Sunil S Karhadkar
- Department of Surgery, Temple University Hospital, Philadelphia, PA, USA
| | - Lindsay E Kuo
- Department of Surgery, Temple University Hospital, Philadelphia, PA, USA.
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Wang R, Price G, Disharoon M, Stidham G, McLeod MC, McMullin JL, Gillis A, Fazendin J, Lindeman B, Ong S, Chen H. Resolution of Secondary Hyperparathyroidism After Kidney Transplantation and the Effect on Graft Survival. Ann Surg 2023; 278:366-375. [PMID: 37325915 DOI: 10.1097/sla.0000000000005946] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Hyperparathyroidism (HPT) is nearly universal in patients with end-stage kidney disease. Kidney transplantation (KT) reverses HPT in many patients, but most studies have only focused on following calcium and not parathyroid hormone (PTH) levels. We sought to study the prevalence of persistent HPT post-KT at our center and its effect on graft survival. METHODS Patients who underwent KT from January 2015 to August 2021 were included and characterized by post-KT HPT status at the most recent follow-up: resolved (achieving normal PTH post-KT) versus persistent HPT. Those with persistent HPT were further stratified by the occurrence of hypercalcemia (normocalcemic versus hypercalcemic HPT). Patient demographics, donor kidney quality, PTH and calcium levels, and allograft function were compared between groups. Multivariable logistic regression and Cox regression with propensity score matching were conducted. RESULTS Of 1554 patients, only 390 (25.1%) patients had resolution of renal HPT post-KT with a mean (±SD) follow-up length of 40±23 months. The median (IQR) length of HPT resolution was 5 (0-16) months. Of the remaining 1164 patients with persistent HPT post-KT, 806 (69.2%) patients had high PTH and normal calcium levels, while 358 (30.8%) patients had high calcium and high PTH levels. Patients with persistent HPT had higher parathyroid hormone (PTH) at the time of KT [403 (243-659) versus 277 (163-454) pg/mL, P <0.001] and were more likely to have received cinacalcet treatment before KT (34.9% vs. 12.3%, P <0.001). Only 6.3% of patients with persistent HPT received parathyroidectomy. Multivariable logistic regression showed race, cinacalcet use pre-KT, dialysis before KT, receiving an organ from a deceased donor, high PTH, and calcium levels at KT were associated with persistent HPT post-KT. After adjusting for patient demographics and donor kidney quality by propensity score matching, persistent HPT (HR 2.5, 95% CI 1.1-5.7, P =0.033) was associated with a higher risk of allograft failure. Sub-analysis showed that both hypercalcemic HPT (HR 2.6, 95% CI 1.1-6.5, P =0.045) and normocalcemic HPT (HR 2.5, 95% CI 1.3-5.5, P =0.021) were associated with increased risk of allograft failure when compared with patients with resolved HPT. CONCLUSION Persistent HPT is common (75%) after KT and is associated with a higher risk of allograft failure. PTH levels should be closely monitored after kidney transplantation so that patients with persistent HPT can be treated appropriately.
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Affiliation(s)
- Rongzhi Wang
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Griffin Price
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Mitchell Disharoon
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Gabe Stidham
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - M Chandler McLeod
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | | | - Andrea Gillis
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Jessica Fazendin
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Brenessa Lindeman
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Song Ong
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Herbert Chen
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
- Department of Surgery, University of Alabama at Birmingham, Boshell Diabetes Building (BDB), Birmingham, AL
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Green RL, Karhadkar SS, Kuo LE. Missed Opportunities to Diagnose and Treat Tertiary Hyperparathyroidism After Transplant. J Surg Res 2023; 287:8-15. [PMID: 36857809 DOI: 10.1016/j.jss.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/12/2023] [Accepted: 01/30/2023] [Indexed: 03/03/2023]
Abstract
INTRODUCTION Tertiary hyperparathyroidism (3HPT) is common after renal transplant. However, guidelines for diagnosis are not clear and few patients are treated surgically. This study aims to determine rates of diagnosis and treatment of 3HPT in renal transplant patients with hypercalcemia. MATERIALS AND METHODS This retrospective chart review identified all renal transplant recipients at a single tertiary care institution between 2011 and 2021. Patients with post-transplant hypercalcemia (> 10.2 mg/dL) were identified. The time in months of index hypercalcemia was noted. Measurement of parathyroid hormone (PTH) levels after index hypercalcemia was determined and noted as elevated if > 64 pg/mL at least 6 mo after transplant. Documentation of symptoms of hyperparathyroidism, a diagnosis of hyperparathyroidism in the electronic medical record, and medical or surgical management of patients with classic 3HPT (elevated calcium and PTH) were determined. RESULTS Of 383 renal transplant recipients, hypercalcemia was identified in 132 patients. The majority of hypercalcemic patients had PTH levels measured (127, 96.2%). PTH was elevated in 109 (82.6%). Among the 109 patients with classic 3HPT, 54 (49.5%) had a documented diagnosis of hyperparathyroidism in the electronic medical record (P = 0.01). Kidney stones or abnormal DEXA scan were present in 16 (14.7%) and 18 (16.5%), respectively. Most patients were managed non-surgically (101, 92.6%); calcimimetics were prescribed for 42 (38.5%, P = 0.01). Eight (7.3%) patients with classic 3HPT were referred to a surgeon (P = 0.35); all were initially prescribed calcimimetics (P = 0.001). CONCLUSIONS 3HPT is underdiagnosed in patients with elevated calcium and PTH levels post-transplant. A significant percentage of these patients go without surgical referral and curative treatment.
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Affiliation(s)
- Rebecca L Green
- Temple University Lewis Katz School of Medicine, Department of General Surgery, Philadelphia, Pennsylvania.
| | - Sunil S Karhadkar
- Temple University Lewis Katz School of Medicine, Department of General Surgery, Philadelphia, Pennsylvania
| | - Lindsay E Kuo
- Temple University Lewis Katz School of Medicine, Department of General Surgery, Philadelphia, Pennsylvania
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[Evolution of the incidence and results at 12 months of parathyroidectomy: 40 years of experience in a dialysis center with two successive surgical departments]. Nephrol Ther 2022; 18:616-626. [PMID: 36328900 DOI: 10.1016/j.nephro.2022.07.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 05/18/2022] [Accepted: 07/19/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Secondary hyperparathyroidism remains the main complication of mineral and bone metabolism in patients with chronic kidney disease. In case of resistance to medical treatment (native and active vitamin D, calcium and calcimimetics), surgical parathyroidectomy is indicated. The aim of this retrospective study is to show the evolution of the incidence and results of surgical parathyroidectomy in our center between 1980 and 2020 as patient characteristics, diagnostic and therapeutic strategies have changed. PATIENTS AND METHODS We collected data from dialysis patients who had a first surgical parathyroidectomy between 2000 and 2020 (period 2) in the same surgical department and compared them with historical data between 1980 and 1999 (period 1) operated in one other center. RESULTS In period 1, 53 surgical parathyroidectomy were performed (2.78/year, 0 to 5, 8.5/1000 patients-year) vs.56 surgical parathyroidectomy in period 2 (2.8/year, 0 to 9, 8/1000 patients-year). The patients of the 2 periods were comparable except for the higher dialysis vintage in period 1 (149±170 vs.89±94 months; P=0.02). In comparison with dialysis patients not requiring surgical parathyroidectomy during the same period, patients who had surgical parathyroidectomy were younger, had higher dialysis vintage and lower diabetes prevalence, but more frequently carriers of glomerulopathy or polycystosis. Systematically performed in period 2, cervical ultrasound identified at least one visible gland in 78.6% of cases while the scintigraphy, performed only in 66% of cases, found at least one gland in 81% of cases. Twelve months after surgery, PTH > 300 pg/mL (marker of secondary hyperparathyroidism recurrence or surgery failure) was present in 30% of patients in period 1 vs. 5.3% in period 2. Hypoparathyroidism was also more frequently observed in period 2 (35.7 vs. 18.8%). Surgical complications were also higher in period 1. CONCLUSION Despite therapeutic and strategic advances, severe secondary hyperparathyroidism is still as common as ever. It is favored by excessively high PTH targets, by suboptimal prevention before dialysis and poor tolerance of calcimimetics. The surgical parathyroidectomy is effective and safe in the hands of a specialized team with an ultrasound and scintigraphic preoperative assessment.
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Ramonell KM, Lindeman B, Chen H, Fazendin J. Parathyroidectomy for Normocalcemic Tertiary Hyperparathyroidism: A 19-Year Experience. J Surg Res 2022; 276:362-368. [DOI: 10.1016/j.jss.2022.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 01/26/2022] [Accepted: 02/10/2022] [Indexed: 11/30/2022]
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The American Association of Endocrine Surgeons Guidelines for the Definitive Surgical Management of Secondary and Tertiary Renal Hyperparathyroidism. Ann Surg 2022; 276:e141-e176. [PMID: 35848728 DOI: 10.1097/sla.0000000000005522] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To develop evidence-based recommendations for safe, effective, and appropriate treatment of secondary (SHPT) and tertiary (THPT) renal hyperparathyroidism. BACKGROUND Hyperparathyroidism is common among patients with chronic kidney disease, end-stage kidney disease, and kidney transplant. The surgical management of SHPT and THPT is nuanced and requires a multidisciplinary approach. There are currently no clinical practice guidelines that address the surgical treatment of SHPT and THPT. METHODS Medical literature was reviewed from January 1, 1985 to present January 1, 2021 by a panel of 10 experts in SHPT and THPT. Recommendations using the best available evidence was constructed. The American College of Physicians grading system was used to determine levels of evidence. Recommendations were discussed to consensus. The American Association of Endocrine Surgeons membership reviewed and commented on preliminary drafts of the content. RESULTS These clinical guidelines present the epidemiology and pathophysiology of SHPT and THPT and provide recommendations for work-up and management of SHPT and THPT for all involved clinicians. It outlines the preoperative, intraoperative, and postoperative management of SHPT and THPT, as well as related definitions, operative techniques, morbidity, and outcomes. Specific topics include Pathogenesis and Epidemiology, Initial Evaluation, Imaging, Preoperative and Perioperative Care, Surgical Planning and Parathyroidectomy, Adjuncts and Approaches, Outcomes, and Reoperation. CONCLUSIONS Evidence-based guidelines were created to assist clinicians in the optimal management of secondary and tertiary renal hyperparathyroidism.
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Surgery is Underutilized in the Management of Tertiary Hyperparathyroidism. J Surg Res 2022; 277:261-268. [PMID: 35525208 DOI: 10.1016/j.jss.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/20/2022] [Accepted: 04/06/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Tertiary hyperparathyroidism (3HPT) is observed in up to 40% of renal transplant patients. Standard guidelines defining 3HPT and indications for operative intervention are not well described. METHODS We conducted a retrospective, single-institution cohort study of patients who underwent renal transplant between January 1, 2012 and January 30, 2018, with a minimum of 13-month follow-up and at least 1 y of allograft function. We defined 3HPT as having elevated serum level parathyroid hormone (>88 pg/mL) after successful renal transplantation or multiple instances of elevated serum calcium starting at least 3 mo after transplant. We compared graft failure rates after stratifying the cohort based on management strategy: expectant, medical management with cinacalcet, and parathyroidectomy. RESULTS Out of the 381 transplanted patients with functional grafts at 1 y, 178 patients (46.6%) were found to have 3HPT. One hundred twenty-nine patients (72.5%) were managed expectantly without medications, 35 patients (19.7%) were managed medically, and 14 patients (7.8%) were managed with parathyroidectomy. Twenty-two patients (17.1%) in the observation group had graft failure, 4 patients (11.4%) in the medically managed group had graft failure, and 0 patients in the surgery group had graft failure. Surgical intervention was associated with decreased renal allograft failure when compared to the combined cohort of nonoperative 3HPT patients (P = 0.03). All patients who underwent parathyroidectomy were cured and did not have graft failure as of December 30, 2019. Calcium elevation, but not PTH elevation, was associated with referral for parathyroidectomy on multivariable logistic regression analysis (P < 0.01). CONCLUSIONS At our institution, the referral rate for parathyroidectomy among patients with 3HPT remains low. Parathyroidectomy was associated with high cure rates and reduced graft failure. Surgery may be underutilized in the management of 3HPT.
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Wang R, Abraham P, Lindeman B, Chen H, Fazendin J. Is preoperative parathyroid localization necessary for tertiary hyperparathyroidism? Am J Surg 2022; 224:918-922. [DOI: 10.1016/j.amjsurg.2022.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 12/15/2022]
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Sutton W, Chen X, Patel P, Karzai S, Prescott JD, Segev DL, McAdams-DeMarco M, Mathur A. Prevalence and risk factors for tertiary hyperparathyroidism in kidney transplant recipients. Surgery 2022; 171:69-76. [PMID: 34266650 PMCID: PMC8688275 DOI: 10.1016/j.surg.2021.03.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/22/2021] [Accepted: 03/29/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Tertiary hyperparathyroidism after kidney transplantation has been associated with graft dysfunction, cardiovascular morbidity, and osteopenia; however, its true prevalence is unclear. The objective of our study was to evaluate the prevalence of and risk factors for tertiary hyperparathyroidism. METHODS A prospective cohort of 849 adult kidney transplantation recipients (December 2008-February 2020) was used to estimate the prevalence of hyperparathyroidism 1-year post-kidney transplant. Tertiary hyperparathyroidism was defined as hypercalcemia (≥10mg/dL) and hyperparathyroidism (parathyroid hormone≥70pg/mL) 1-year post-kidney transplantation. Modified Poisson regression models were used to evaluate risk factors associated with the development of both persistent hyperparathyroidism and tertiary hyperparathyroidism. RESULTS Among kidney transplantation recipients, 524 (61.7%) had persistent hyperparathyroidism and 182 (21.5%) had tertiary hyperparathyroidism at 1-year post-kidney transplantation. Calcimimetic use before kidney transplantation was associated with 1.30-fold higher risk of persistent hyperparathyroidism (adjusted prevalence ratio = 1.30, 95% CI: 1.12-1.51) and 1.84-fold higher risk of tertiary hyperparathyroidism (adjusted prevalence ratio = 1.84, 95% CI: 1.25-2.72). Pre-kidney transplantation parathyroid hormone ≥300 pg/mL was associated with 1.49-fold higher risk of persistent hyperparathyroidism (adjusted prevalence ratio = 1.49, 95% CI = 1.19-1.85) and 2.21-fold higher risk of tertiary hyperparathyroidism (adjusted prevalence ratio = 2.21, 95% CI = 1.25-3.90). Pre-kidney transplantation tertiary hyperparathyroidism was associated with an increased risk of post-kidney transplantation tertiary hyperparathyroidism (adjusted prevalence ratio = 1.71, 95% CI = 1.29-2.27), but not persistent hyperparathyroidism. Furthermore, 73.0% of patients with persistent hyperparathyroidism and 61.5% with tertiary hyperparathyroidism did not receive any treatment at 1-year post-kidney transplantation. CONCLUSION Persistent hyperparathyroidism affected 61.7% and tertiary hyperparathyroidism affected 21.5% of kidney transplantation recipients; however, the majority of patients were not treated. Pre-kidney transplantation parathyroid hormone levels ≥300pg/mL and the use of calcimimetics are associated with the development of tertiary hyperparathyroidism. These findings encourage the re-evaluation of recommended pre-kidney transplantation parathyroid hormone thresholds and reconsideration of pre-kidney transplantation secondary hyperparathyroidism treatments to avoid the adverse sequelae of tertiary hyperparathyroidism in kidney transplantation recipients.
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Affiliation(s)
- Whitney Sutton
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Xiaomeng Chen
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Palak Patel
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Shkala Karzai
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jason D. Prescott
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dorry L. Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Mara McAdams-DeMarco
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Aarti Mathur
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
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Neves CL, Marques IDB, Custódio MR. Mineral and bone disorder after kidney transplantation (KTx). J Bras Nefrol 2021; 43:674-679. [PMID: 34910805 PMCID: PMC8823922 DOI: 10.1590/2175-8239-jbn-2021-s113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/03/2021] [Indexed: 11/22/2022] Open
Affiliation(s)
- Carolina Lara Neves
- Universidade Federal da Bahia, Hospital das Clínicas, Salvador, BA, Brazil.,Hospital Ana Nery, Salvador, BA, Brazil
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Abstract
OBJECTIVE To evaluate the reason for delay of surgical referral in tertiary hyperparathyroidism (THPT) and its impact on renal allograft function. BACKGROUND Persistent hyperparathyroidism after renal transplant has been shown to negatively impact allograft function, yet referral for definitive treatment of THPT is often delayed. METHODS A retrospective review was performed of patients undergoing parathyroidectomy for THPT (n = 38) at a single institution from May 2016 to June 2018. The first elevated serum calcium after transplant and time to referral for parathyroid surgery were recorded. Baseline creatinine post-transplant and the most recent creatinine level were used to assess allograft function. RESULTS Thirty-eight patients were included, with mean age 53 ± 2 years and 66% male. Mean preoperative calcium and parathyroid hormone were 10.8 ± 0.1 mg/dL and 328 ± 48 pg/mL, respectively. THPT after renal transplant was diagnosed at a median of 15 days (range of 1-4892 days). Median time to parathyroidectomy referral was 320 days (range 16-6281 days). In over 50% of patients, the cited reason for referral to an endocrine surgeon was difficulty with cinacalcet - either cost, poor calcium control, and poor compliance or tolerance. In comparing renal function between patients referred early (<278 days, n = 19) versus later (>278 days, n = 19) for parathyroidectomy, those referred early had an improvement in creatinine (27.6% vs -5%, P = 0.007). CONCLUSIONS Patients with THPT wait approximately a year, on average, before referral to an endocrine surgeon for curative parathyroidectomy; earlier referral was associated with improvement in serum creatinine.
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Patel A, Lee CY, Sloan DA, Randle RW. Parathyroidectomy for Tertiary Hyperparathyroidism: A Multi-Institutional Analysis of Outcomes. J Surg Res 2020; 258:430-434. [PMID: 33046234 DOI: 10.1016/j.jss.2020.08.079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/30/2020] [Accepted: 08/26/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Patients with tertiary hyperparathyroidism (HPT) often experience delays between diagnosis and referral for surgical treatment. We hypothesized that patients with tertiary HPT experience similarly high cure rates and low complication rates after parathyroidectomy compared with patients with primary HPT. METHODS We retrospectively identified patients undergoing parathyroidectomy from the Collaborative Endocrine Surgery Quality Improvement Program for primary or tertiary HPT from January 2014 to April 2019. Patients were categorized according to their primary diagnosis and compared for cure rates and surgical complications. RESULTS The study included 9030 patients, with 334 (3.7%) being treated for tertiary HPT. Parathyroidectomy provided a high cure rate (93.7%) in patients with tertiary HPT. However, adjusting for age, sex, and prior thyroid or parathyroid surgery, tertiary HPT was associated with a greater chance of persistent disease than was primary HPT (odds ratio: 2.3, 95% confidence interval: 1.3-4.0). Overall, complications were low for patients across both groups. However, patients with tertiary HPT were more likely to present to the emergency department (7.5% versus 3.3%; P < 0.001), be readmitted (5.1% versus 1.1%; P < 0.001), and develop a hematoma (1.5% versus 0.2%; P = 0.002). Both groups of patients shared similarly low rates of other complications, including mortality, vocal cord dysfunction, and surgical site infections (P < 0.5% for all). CONCLUSIONS Patients undergoing parathyroidectomy for tertiary HPT experience high cure rates and low complication rates. However, tertiary HPT is associated with a greater chance of persistent disease and select complications. Nevertheless, the low rates of persistent disease and complications should not deter early referral for the treatment of tertiary HPT.
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Affiliation(s)
- Aum Patel
- Department of General Surgery, University of Kentucky, Lexington, Kentucky
| | - Cortney Y Lee
- Department of General Surgery, University of Kentucky, Lexington, Kentucky
| | - David A Sloan
- Department of General Surgery, University of Kentucky, Lexington, Kentucky
| | - Reese W Randle
- Department of General Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina.
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McManus C, Oh A, Lee JA, Hur C, Kuo JH. Timing of parathyroidectomy for tertiary hyperparathyroidism with end-stage renal disease: A cost-effectiveness analysis. Surgery 2020; 169:94-101. [PMID: 32732069 DOI: 10.1016/j.surg.2020.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/08/2020] [Accepted: 06/01/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Tertiary hyperparathyroidism associated with end-stage renal disease is characterized by progression from secondary hyperparathyroidism to an autonomous overproduction of parathyroid hormone that leads to adverse health outcomes. Rates of parathyroidectomy (PTX) have decreased with the use of calcimimetics. Optimal timing of PTX in relation to kidney transplant remains controversial. We aimed to identify the most cost-effective strategy for patients with tertiary hyperparathyroidism undergoing kidney transplant. METHODS We constructed a patient level state transition microsimulation to compare 3 management schemes: cinacalcet with kidney transplant, cinacalcet with PTX before kidney transplant, or cinacalcet with PTX after kidney transplant. Our base case was a 55-year-old on dialysis with tertiary hyperparathyroidism awaiting kidney transplant. Outcomes, including quality-adjusted life years, surgical complications, and mortality, were extracted from the literature, and costs were estimated using Medicare reimbursement data. RESULTS Our base case analysis demonstrated that cinacalcet with PTX before kidney transplant was dominant, with a lesser cost of $399,287 and greater quality-adjusted life years of 10.3 vs $497,813 for cinacalcet with PTX after kidney transplant (quality-adjusted life years 9.4) and $643,929 for cinacalcet with kidney transplant (quality-adjusted life years 7.4). CONCLUSION Cinacalcet alone with kidney transplant is the least cost-effective strategy. Patients with end-stage renal disease-related tertiary hyperparathyroidism should be referred for PTX, and it is most cost-effective if performed prior to kidney transplant.
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Affiliation(s)
- Catherine McManus
- Department of Surgery, Section of Endocrine Surgery, Columbia University Medical Center, New York, NY.
| | - Aaron Oh
- Department of Surgery, Section of Endocrine Surgery, Columbia University Medical Center, New York, NY
| | - James A Lee
- Department of Surgery, Section of Endocrine Surgery, Columbia University Medical Center, New York, NY
| | - Chin Hur
- Department of Surgery, Section of Endocrine Surgery, Columbia University Medical Center, New York, NY
| | - Jennifer H Kuo
- Department of Surgery, Section of Endocrine Surgery, Columbia University Medical Center, New York, NY
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Influence of Parathyroidectomy on Kidney Graft Function in Secondary and Tertiary Hyperparathyroidism. Transplant Proc 2020; 52:3134-3143. [PMID: 32402458 DOI: 10.1016/j.transproceed.2020.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/20/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Timing of parathyroidectomy (PTX) remains controversial in candidates for kidney transplant with concomitant renal hyperparathyroidism (HPT). The aim of this retrospective study was to identify the influence of early vs late posttransplant PTX compared to pretransplant PTX on renal graft function and morbidity. METHODS This single-center cohort study includes 57 patients with renal HPT and kidney transplantation treated between 2007 and 2017. Ninety-six patients had surgery for renal HPT between 2007 and 2017 as a consecutive sample. Group 1 (n = 30; tertiary HPT), group 2 (n = 66; secondary HPT). Of group 1, 4 patients were excluded for PTX before and after kidney transplantation. In group 2, 20 patients were excluded since they had not undergone kidney transplantation during follow-up. Twelve patients were excluded because of short follow-up (kidney transplantation in 2018), and 3 patients were excluded because of transplant failure within 90 days. Twenty-six patients underwent posttransplant PTX (10 patients within 12 months after transplant), and 31 patients had undergone PTX prior to kidney transplantation. Graft function, serum calcium concentrations, parathyroid hormone (PTH) levels, postoperative morbidity, and 90-day mortality were recorded. RESULTS Median age was 53.1 years in group 1 and 49.1 years in group 2. Most patients were male (53.8% in group 1; 54.8% in group 2). Median preoperative PTH levels were significantly different with 331.6 pg/mL in group 1 and 667.5 pg/mL in group 2 (P = .003). Creatinine levels changed little from 1.4 mg/dL (range, 0.8-2.5) to 1.7 mg/dL (range, 0.7-7.3) in group 1, and no difference was seen between early or late PTX after transplantation. In group 2, creatinine levels were 8.5 mg/dL (range, 4.6-11.7) before PTX and 8.7 mg/dL (range, 5.1-11.9) after PTX. We saw no correlation between postoperative PTH and kidney function. Thirty-five patients with postoperative PTH < 15 pg/mL displayed a mean postoperative creatinine of 5.5 mg/dL (range, 4.3-6.8), similar to other patients. Both the 30-day and 90-day mortality rates were zero. CONCLUSIONS PTX had no negative effect on graft function, whether performed before or after (early or late) kidney transplantation. Surgical cure of renal HPT should be performed as soon as possible to prevent secondary complications and can also be safely carried out early after transplantation.
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Pérez RE, Santiago JC, López MC, Rosales Morales KB, Zavalza Camberos PA, Olayo RB, Gómez RR, Cancino López JD, Morinelli Astorquizaga MA, Díaz ER, Menjivar CM, Hernández Rivera JCH, Sierra RP. Behavior of Calcium, Phosphorus, and Parathormone Before Transplantation and in Months 1, 3, 6, 9, and 12 After Transplantation. Transplant Proc 2020; 52:1152-1156. [PMID: 32173591 DOI: 10.1016/j.transproceed.2020.01.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 01/25/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Bone mineral disease after transplantation persists and is an issue that must be addressed owing to the cardiovascular impact it presents. The objective of this study is to present the behavior of calcium, phosphorus, and parathormone (PTH) before renal transplantation (RT) and throughout the 12 months after transplant surgery. METHODS A longitudinal observational study of RT patients was performed from 2013 to 2017 in 2 renal transplant units in Mexico. In total, 1009 records of patients with RT were analyzed. Calcium, phosphorus, and PTH levels were studied before transplantation and for 12 months after. Central tendency and dispersion were measured, the difference of means was established with chi square or student t tests, and the significant value of P was set at <.05. We also used the SPSS statistical package, version 25. RESULTS Phosphorus had a median pre-RT of 5.73, which decreased to 2.8 in the first month post-transplant and then increased to 3.41 at 12 months post-RT. The median PTH, on the other hand, started at 420.60 and decreased to 67.45. Calcium began at 9.04 and hit a plateau of 9.58 during month 12 after the surgical event. CONCLUSIONS Of the 3 biochemical parameters evaluated, phosphorus was the one that most corrected itself after transplantation. Despite a tendency toward hypophosphatemia in the first month after transplantation, it began to normalize from month 6 on. Meanwhile, calcium was the biochemical value that changed the least after transplantation.
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Affiliation(s)
- Ramón Espinoza Pérez
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - José Cruz Santiago
- Kidney Transplant Unit, Specialty Hospital, National Medical Center La Raza, Mexico City, Mexico
| | - Martha Cruz López
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | | | | | - Roberto Bautista Olayo
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Raúl Rodríguez Gómez
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Jorge David Cancino López
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | | | - Evelin Reyes Díaz
- Kidney Transplant Unit, Specialty Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Cristhian Muñoz Menjivar
- Kidney Transplant Unit, Specialty Hospital, National Medical Center La Raza, Mexico City, Mexico; Medical Research Unit in Nephrological Diseases, Specialties Hospital National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Juan Carlos H Hernández Rivera
- Medical Research Unit in Nephrological Diseases, Specialties Hospital National Medical Center Siglo XXI, IMSS, Mexico City, Mexico.
| | - Ramón Paniagua Sierra
- Medical Research Unit in Nephrological Diseases, Specialties Hospital National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
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Patecki M, Scheffner I, Haller H, Gwinner W. Long-term renal graft outcome after parathyroidectomy - a retrospective single centre study. BMC Nephrol 2020; 21:53. [PMID: 32070317 PMCID: PMC7027287 DOI: 10.1186/s12882-020-01723-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/11/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Surgical correction of hyperparathyroidism after kidney transplantation has been associated with significant graft function decline. We examined the effects of parathyroidectomy on short- and long-term graft function and its potential predictors. METHODS For this retrospective, monocentric study we identified 48 (5.5%) out of 892 patients from our protocol biopsy program who received renal transplantation between 2000 and 2007, with parathyroidectomy after transplantation. Data from up to three years after parathyroidectomy was collected and analyzed with multivariable linear regression analyses. RESULTS Main indications for parathyroidectomy were hypercalcemia and graft calcifications. Parathyroidectomy was successful in 47 patients, with a median drop in serum intact parathormone (iPTH) from 394 to 21 pg/ml. Mean estimated glomerular fitration rate (eGFR) before parathyroidectomy was 60 ± 26 ml/min. At three months after parathyroidectomy, the eGFR was 46 ± 18 ml/min (p < 0.001) but remained stable at one and three years (50 ± 20; 49 ± 20 ml/min). The median annual eGFR change was - 0.5 ml/min before and + 1.0 ml/min after parathyroidectomy. Multivariable modeling identified high iPTH levels and higher eGFR before parathyroidectomy as predictors of the eGFR drop after parathyroidectomy. Lower graft function twelve months after parathyroidectomy was predicted by the eGFR before and the iPTH drop after surgery. CONCLUSIONS These results indicate that the extent of parathyroidectomy is critical and too much lowering of iPTH should be avoided by timely parathyroidectomy, before reaching extreme high iPTH values. In view of the observed loss of eGFR, parathyroidectomy can be considered safe in patients with an eGFR above 30 ml/min.
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Affiliation(s)
- Margret Patecki
- Department of Nephrology and Hypertension, Hannover Medical School, Carl-Neuberg-Straße 1, 30635, Hannover, Germany.
| | - Irina Scheffner
- Department of Nephrology and Hypertension, Hannover Medical School, Carl-Neuberg-Straße 1, 30635, Hannover, Germany
| | - Hermann Haller
- Department of Nephrology and Hypertension, Hannover Medical School, Carl-Neuberg-Straße 1, 30635, Hannover, Germany
| | - Wilfried Gwinner
- Department of Nephrology and Hypertension, Hannover Medical School, Carl-Neuberg-Straße 1, 30635, Hannover, Germany
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Hu Z, Han E, Chen W, Chen J, Chen W, Guo R. Feasibility and safety of ultrasound-guided percutaneous microwave ablation for tertiary hyperparathyroidism. Int J Hyperthermia 2019; 36:1129-1136. [PMID: 31744350 DOI: 10.1080/02656736.2019.1684576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Zhian Hu
- Department of Ultrasound, Huangshi Central Hospital of Hubei Polytechnic University, Huangshi, Hubei, China
| | - Ehui Han
- Department of Ultrasound, Huangshi Central Hospital of Hubei Polytechnic University, Huangshi, Hubei, China
| | - Wei Chen
- Department of Nephrology, Huangshi Central Hospital of Hubei Polytechnic University, Huangshi, Hubei, China
| | - Jian Chen
- Department of Nephrology, Huangshi Central Hospital of Hubei Polytechnic University, Huangshi, Hubei, China
| | - Wenwei Chen
- Department of Ultrasound, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ruiqiang Guo
- Department of Ultrasound, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Timing of Parathyroidectomy Does Not Influence Renal Function After Kidney Transplantation. World J Surg 2019; 43:1972-1980. [PMID: 30798418 DOI: 10.1007/s00268-019-04952-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Parathyroidectomy (PTx) is the treatment of choice for end-stage renal disease (ESRD) patients with therapy-resistant hyperparathyroidism (HPT). The optimal timing of PTx for ESRD-related HPT-before or after kidney transplantation (KTx)-is subject of debate. METHODS Patients with ESRD-related HPT who underwent both PTx and KTx between 1994 and 2015 were included in a multicenter retrospective study in four university hospitals. Two groups were formed according to treatment sequence: PTx before KTx (PTxKTx) and PTx after KTx (KTxPTx). Primary endpoint was renal function (eGFR, CKD-EPI) between both groups at several time points post-transplantation. Correlation between the timing of PTx and KTx and the course of eGFR was assessed using generalized estimating equations (GEE). RESULTS The PTxKTx group consisted of 102 (55.1%) and the KTxPTx group of 83 (44.9%) patients. Recipient age, donor type, PTx type, and pre-KTx PTH levels were significantly different between groups. At 5 years after transplantation, eGFR was similar in the PTxKTx group (eGFR 44.5 ± 4.0 ml/min/1.73 m2) and KTxPTx group (40.0 ± 6.4 ml/min/1.73 m2, p = 0.43). The unadjusted GEE model showed that timing of PTx was not correlated with graft function over time (mean difference -1.0 ml/min/1.73 m2, 95% confidence interval -8.4 to 6.4, p = 0.79). Adjustment for potential confounders including recipient age and sex, various donor characteristics, PTx type, and PTH levels did not materially influence the results. CONCLUSIONS In this multicenter cohort study, timing of PTx before or after KTx does not independently impact graft function over time.
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Ermer JP, Kelz RR, Fraker DL, Wachtel H. Intraoperative Parathyroid Hormone Monitoring in Parathyroidectomy for Tertiary Hyperparathyroidism. J Surg Res 2019; 244:77-83. [PMID: 31279997 DOI: 10.1016/j.jss.2019.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/25/2019] [Accepted: 06/06/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Tertiary hyperparathyroidism (THPT) is characterized by hypercalcemia and hyperparathyroidism after renal allograft. Limited data exist regarding the use of intraoperative parathyroid hormone (IOPTH) for THPT. We examined our series of parathyroidectomies performed for THPT to determine clinical outcomes with respect to IOPTH. MATERIALS AND METHODS Patients who underwent parathyroidectomy for THPT (1999-2017) were identified for inclusion. Retrospective chart review was performed. Cure was defined as eucalcemia ≥6 mo after surgery. Statistical analysis was performed. RESULTS Of 41 patients included in the study, 41% (n = 17) were female. The median duration of dialysis before renal allograft was 34 mo (interquartile interval [IQI]:6-60). Preoperatively, the median calcium level was 10.4 mg/dL (IQI:10.0-11.2), median parathyroid hormone was 172 pg/mL (IQI:104-293), and renal function was minimally abnormal with median glomerular filtration rate 58 mL/min/1.73 m2 (IQI:49-71). At surgery, the median final IOPTH was 40 pg/mL (IQI:29-73), and median decrease in IOPTH was 78% (IQI:72-87), with 88% (n = 36) of patients demonstrating >50% decrease. Median calcium level ≥6 mo after surgery was 9.4 mg/dL (IQI:8.8-9.7), and only one patient had recurrent hypercalcemia. Failure to achieve >50% decrease in IOPTH was not significantly associated with recurrent hypercalcemia (P = 1.000). With a median follow-up time of 41 mo (IQI:25-70), only three patients had graft failure. The positive predictive value of IOPTH for cure was 89% (95% confidence interval: 0.752-0.971), with 0% negative predictive value and 87% accuracy (95% confidence interval: 0.726-0.957). CONCLUSIONS Subtotal parathyroidectomy is a successful operation with durable cure of THPT. IOPTH fails to predict long-term cure in THPT despite minimally abnormal renal function.
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Affiliation(s)
- Jae P Ermer
- Division of Endocrine and Oncologic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rachel R Kelz
- Division of Endocrine and Oncologic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Douglas L Fraker
- Division of Endocrine and Oncologic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Heather Wachtel
- Division of Endocrine and Oncologic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
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Hirata K, Watanabe H, Toyoda M, Sugimoto R, Ikegami K, Imafuku T, Matsuzaka K, Ichimizu S, Maeda H, Uekihara S, Jingami S, Maruyama T. Effect of Serum Parathyroid Hormone on Tacrolimus Therapy in Kidney Transplant Patients: A Possible Biomarker for a Tacrolimus Dosage Schedule. Biol Pharm Bull 2019; 42:786-791. [DOI: 10.1248/bpb.b18-00976] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kenshiro Hirata
- Department of Pharmacy, Japanese Red Cross Kumamoto Hospital
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University
| | - Mariko Toyoda
- Department of General Internal Medicine, Japanese Red Cross Kumamoto Hospital
| | - Ryusei Sugimoto
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Komei Ikegami
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Tadashi Imafuku
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Kotaro Matsuzaka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Shota Ichimizu
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Hitoshi Maeda
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University
| | - Sohichi Uekihara
- Department of General Internal Medicine, Japanese Red Cross Kumamoto Hospital
| | - Sachiko Jingami
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University
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Parathyroidectomy versus cinacalcet for tertiary hyperparathyroidism; a retrospective analysis. Langenbecks Arch Surg 2019; 404:71-79. [PMID: 30729318 PMCID: PMC6394681 DOI: 10.1007/s00423-019-01755-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/17/2019] [Indexed: 01/12/2023]
Abstract
Introduction Tertiary hyperparathyroidism (tHPT), i.e., persistent HPT after kidney transplantation, affects 17–50% of transplant recipients. Treatment of tHPT is mandatory since persistently elevated PTH concentrations after KTx increase the risk of renal allograft dysfunction and osteoporosis. The introduction of cinacalcet in 2004 seemed to offer a medical treatment alternative to parathyroidectomy (PTx). However, the optimal management of tHPT remains unclear. Methods A retrospective analysis was performed on patients receiving a kidney transplantation (KT) in two academic centers in the Netherlands. Thirty patients undergoing PTx within 3 years of transplantation and 64 patients treated with cinacalcet 1 year after transplantation for tHPT were included. Primary outcomes were serum calcium and PTH concentrations 1 year after KT and after PTx. Results Serum calcium normalized in both the cinacalcet and the PTx patients. PTH concentrations remained above the upper limit of normal (median 22.0 pmol/L) 1 year after KT, but returned to within the normal range in the PTx group (median 3.7 pmol/L). Side effects of cinacalcet were difficult to assess; minor complications occurred in three patients. Re-exploration due to persistent tHPT was performed in three (10%) patients. Conclusion In patients with tHPT, cinacalcet normalizes serum calcium, but does not lead to a normalization of serum PTH concentrations. In contrast, PTx leads to a normalization of both serum calcium and PTH concentrations. These findings suggest that PTx is the treatment of choice for tHPT.
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Finnerty BM, Chan TW, Jones G, Khader T, Moore M, Gray KD, Beninato T, Watkins AC, Zarnegar R, Fahey TJ. Parathyroidectomy versus Cinacalcet in the Management of Tertiary Hyperparathyroidism: Surgery Improves Renal Transplant Allograft Survival. Surgery 2018; 165:129-134. [PMID: 30415867 DOI: 10.1016/j.surg.2018.04.090] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/16/2018] [Accepted: 04/23/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Renal transplant allograft function in patients with tertiary hyperparathyroidism who are treated with cinacalcet versus parathyroidectomy remains unclear. METHODS This is a retrospective, single-center review of patients with tertiary hyperparathyroidism between 2000 and 2017. We compared clinical parameters and outcomes, including renal allograft failure in patients who had undergone parathyroidectomy versus treatment with cinacalcet therapy. RESULTS A total of 133 patients were included (33 who received parathyroidectomy and 100 who received cinacalcet); median renal allograft survival was 5.9 years (interquartile range 4.0-9.0). There were no differences in age, sex, body mass index, comorbidities, duration of pretransplant dialysis, cadaveric donor utilization, or rates of delayed allograft function between cohorts. In the parathyroidectomy cohort, normalization of parathyroid hormone occurred more frequently (67% vs 15%, P < .001) and renal allograft failure rates were less (9% vs 33%, P = .007), with similar median posttransplant follow-up (7.0 years [interquartile range 4.5-10.0]). On multivariable analysis, parathyroidectomy was inversely associated with allograft failure (odds ratio 0.20, 95%-confidence interval 0.06-0.71, P = .013); there were no other associated factors. A greater median parathyroid hormone (pg/mL) 1 year posttransplant (348 [interquartile range 204-493] vs 195 [interquartile range 147-297], P = .025) was associated with allograft failure in the cinacalcet cohort. CONCLUSION Parathyroidectomy for tertiary hyperparathyroidism is associated with lesser rates of renal allograft failure compared with cinacalcet management. Patients with inadequate parathyroid hormone control on cinacalcet at 1 year posttransplant should be considered for parathyroidectomy to prevent potential allograft failure.
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Affiliation(s)
- Brendan M Finnerty
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY.
| | - Tyler W Chan
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Gregory Jones
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Tarek Khader
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Maureen Moore
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Katherine D Gray
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Toni Beninato
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Anthony C Watkins
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Rasa Zarnegar
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
| | - Thomas J Fahey
- Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medicine, New York, NY
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Affiliation(s)
- Reema Mallick
- Department of Surgery, University of Alabama-Birmingham, 1808 7th Avenue South, Suite 502, Birmingham, AL 35233, USA
| | - Herbert Chen
- Department of Surgery, University of Alabama-Birmingham, 1808 7th Avenue South, Suite 502, Birmingham, AL 35233, USA.
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Vangala C, Pan J, Cotton RT, Ramanathan V. Mineral and Bone Disorders After Kidney Transplantation. Front Med (Lausanne) 2018; 5:211. [PMID: 30109232 PMCID: PMC6079303 DOI: 10.3389/fmed.2018.00211] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022] Open
Abstract
The risk of mineral and bone disorders among patients with chronic kidney disease is substantially elevated, owing largely to alterations in calcium, phosphorus, vitamin D, parathyroid hormone, and fibroblast growth factor 23. The interwoven relationship among these minerals and hormones results in maladaptive responses that are differentially affected by the process of kidney transplantation. Interpretation of conventional labs, imaging, and other fracture risk assessment tools are not standardized in the post-transplant setting. Post-transplant bone disease is not uniformly improved and considerable variation exists in monitoring and treatment practices. A spectrum of abnormalities such as hypophosphatemia, hypercalcemia, hyperparathyroidism, osteomalacia, osteopenia, and osteoporosis are commonly encountered in the post-transplant period. Thus, reducing fracture risk and other bone-related complications requires recognition of these abnormalities along with the risk incurred by concomitant immunosuppression use. As kidney transplant recipients continue to age, the drivers of bone disease vary throughout the post-transplant period among persistent hyperparathyroidism, de novo hyperparathyroidism, and osteoporosis. The use of anti-resorptive therapies require understanding of different options and the clinical scenarios that warrant their use. With limited studies underscoring clinical events such as fractures, expert understanding of MBD physiology, and surrogate marker interpretation is needed to determine ideal and individualized therapy.
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Affiliation(s)
- Chandan Vangala
- Division of Nephrology and Solid-Organ Transplantation, Michael E. DeBakey VA Medical Center, Houston, TX, United States
| | - Jenny Pan
- Division of Nephrology and Solid-Organ Transplantation, Michael E. DeBakey VA Medical Center, Houston, TX, United States
| | - Ronald T Cotton
- Division of Abdominal Transplantation, Department of Surgery, Baylor College of Medicine, Houston, TX, United States
| | - Venkat Ramanathan
- Division of Nephrology and Solid-Organ Transplantation, Michael E. DeBakey VA Medical Center, Houston, TX, United States
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Tang JA, Friedman J, Hwang MS, Salapatas AM, Bonzelaar LB, Friedman M. Parathyroidectomy for tertiary hyperparathyroidism: A systematic review. Am J Otolaryngol 2017; 38:630-635. [PMID: 28735762 DOI: 10.1016/j.amjoto.2017.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 06/14/2017] [Accepted: 06/19/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Analyze the efficacy and indications for parathyroidectomy as an intervention for tertiary hyperparathyroidism. DATA SOURCES PubMed, MEDLINE, and Cochrane Library databases. REVIEW METHODS A systematic literature search was performed using the. Original research articles in English were retrieved using the search terms ("tertiary hyperparathyroidism" OR "3HPT") AND "parathyroidectomy". Articles were analyzed in regards to their surgical indications, operative endpoints, comparison between different surgical interventions, characterization of disease recurrence rates, and evaluation of alternative medical management. RESULTS Thirty studies met the criteria for inclusion. Among the studies that report indications for parathyroidectomy, persistent hypercalcemia as well as clinical manifestations of hypercalcemia despite medical therapy predicted which patients would eventually need surgical intervention. The majority of studies comparing the extent of parathyroidectomy recommended a more focused approach to parathyroidectomy when warranted. All studies found that parathyroidectomy was an effective treatment for 3HPT. Three studies discussed alternative conservative approaches. CONCLUSION Interestingly, hyperparathyroidism alone is not an indication for surgery without other findings; rather, symptomatic hypercalcemia appears to be the main indication. Most studies recommend limited or subtotal parathyroidectomy for 3HPT. The operative endpoint of surgery is not necessarily a return of PTH to normal, but a >50% drop in PTH level even if PTH remains above normal. Additionally, "success" or "cure" is defined as normal calcium levels regardless of whether or not PTH is elevated. It appears the goal of surgery for 3HPT is not a normal PTH value, but a normal calcium level at least six months postoperatively.
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van der Plas WY, Engelsman AF, Özyilmaz A, van der Horst-Schrivers AN, Meijer K, van Dam GM, Pol RA, de Borst MH, Kruijff S. Impact of the Introduction of Calcimimetics on Timing of Parathyroidectomy in Secondary and Tertiary Hyperparathyroidism. Ann Surg Oncol 2017; 24:15-22. [PMID: 27459979 PMCID: PMC5179588 DOI: 10.1245/s10434-016-5450-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Hyperparathyroidism (HPT), both secondary and tertiary, is common in patients with end-stage renal disease, and is associated with severe bone disorders, cardiovascular complications, and increased mortality. Since the introduction of calcimimetics in 2004, treatment of HPT has shifted from surgery to predominantly medical therapy. OBJECTIVE The aim of this study was to evaluate the impact of this change of management on the HPT patient population before undergoing (sub-)total parathyroidectomy (PTx). METHODS Overall, 119 patients with secondary or tertiary HPT undergoing PTx were included in a retrospective, single-center cohort. Group A, who underwent PTx before January 2005, was compared with group B, who underwent PTx after January 2005. Patient characteristics, time interval between HPT diagnosis and PTx, and postoperative complications were compared. RESULTS Group A comprised 70 (58.8 %) patients and group B comprised 49 (41.2 %) patients. The median interval between HPT diagnosis and PTx was 27 (interquartile range [IQR] 12.5-48.0) and 49 (IQR 21.0-75.0) months for group A and B, respectively (p = 0.007). Baseline characteristics were similar among both groups. The median preoperative serum parathyroid hormone (PTH) level was 936 pg/mL (IQR 600-1273) for group A versus 1091 pg/mL (IQR 482-1373) for group B (p = 0.38). PTx resulted in a dramatic PTH reduction (less than twofold the upper limit: A, 80.0 %; B, 85.4 %), and postoperative complication rates were low in both groups (A: 7.8 %; B: 10.2 %) [p = 0.66]. CONCLUSIONS The introduction of calcimimetics in 2004 is associated with a significant 2-year delay of surgery with continuously elevated preoperative PTH levels, while parathyroid surgery, even in a fragile population, is considered a safe and effective procedure.
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Affiliation(s)
- Willemijn Y van der Plas
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anton F Engelsman
- Department of Surgery, Academic Medical Center, Amsterdam, The Netherlands
| | - Akin Özyilmaz
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Dialysis Center Groningen, Groningen, The Netherlands
| | | | - Kornelis Meijer
- Department of Clinical Chemistry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gooitzen M van Dam
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Nuclear Medicine and Molecular Imaging and Intensive Care, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Robert A Pol
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Martin H de Borst
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Schelto Kruijff
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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The Changing Landscape of Primary, Secondary, and Tertiary Hyperparathyroidism: Highlights from the American College of Surgeons Panel, “What's New for the Surgeon Caring for Patients with Hyperparathyroidism”. J Am Coll Surg 2016; 222:1240-50. [DOI: 10.1016/j.jamcollsurg.2016.02.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 02/11/2016] [Accepted: 02/12/2016] [Indexed: 12/27/2022]
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