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Büttner M, Singer S, Taylor K. Quality of life in patients with hypoparathyroidism receiving standard treatment: an updated systematic review. Endocrine 2024:10.1007/s12020-024-03807-2. [PMID: 38578400 DOI: 10.1007/s12020-024-03807-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
PURPOSE Hypoparathyroidism is defined by hypocalcemia with inappropriately normal or low parathyroid hormone levels. The current standard treatment consists of lifelong calcium and/ or vitamin D supplementation. Even while on stable treatment regimens, hypoparathyroid patients might still suffer from symptoms that can negatively impact their quality of life. METHODS A systematic literature review to identify the current knowledge regarding quality of life in patients with hypoparathyroidism receiving standard treatment was performed on November 1st, 2023. PubMed as well as Web of Science were searched. The systematic review is registered in PROSPERO (#CRD42023470924). RESULTS After removal of duplicates, 398 studies remained for title and abstract screening, after which 30 were included for full-text screening. After exclusion of seven studies with five studies lacking a control population, one using a non-validated questionnaire, and one being a subsample of the larger included study, 23 studies were included in this systematic review. The majority of the included studies used a guideline-conform definition of hypoparathyroidism, and the SF-36 was the most often applied tool. Almost all studies (87%) reported statistically significantly lower scores in at least one quality of life domain compared to a norm population or controls. CONCLUSION Patients with hypoparathyroidism receiving standard treatment report impairments in quality of life. The reasons for these impairments are probably multifaceted, making regular monitoring and the inclusion of various professionals necessary.
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Affiliation(s)
- Matthias Büttner
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center Mainz, Mainz, Germany.
- University Cancer Centre, Mainz, Germany.
| | - Susanne Singer
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center Mainz, Mainz, Germany
- University Cancer Centre, Mainz, Germany
| | - Katherine Taylor
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center Mainz, Mainz, Germany
- University Cancer Centre, Mainz, Germany
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Rao KN, Rajguru R, Dange P, Vetter D, Triponez F, Nixon IJ, Randolph GW, Mäkitie AA, Zafereo M, Ferlito A. Lower Rates of Hypocalcemia Following Near-Infrared Autofluorescence Use in Thyroidectomy: A Meta-Analysis of RCTs. Diagnostics (Basel) 2024; 14:505. [PMID: 38472977 DOI: 10.3390/diagnostics14050505] [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: 12/20/2023] [Revised: 01/18/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Iatrogenic injury of the parathyroid glands is the most frequent complication after total thyroidectomy. OBJECTIVE To determine the effectiveness of near-infrared autofluorescence (NIRAF) in reducing postoperative hypocalcemia following total thyroidectomy. METHODS PubMed, Scopus, and Google Scholar databases were searched. Randomised trials reporting at least one hypocalcemia outcome following total thyroidectomy using NIRAF were included. RESULTS The qualitative data synthesis comprised 1363 patients from nine randomised studies, NIRAF arm = 636 cases and non-NIRAF arm = 637 cases. There was a statistically significant difference in the overall rate of hypocalcemia log(OR) = -0.7 [(-1.01, -0.40), M-H, REM, CI = 95%] and temporary hypocalcemia log(OR) = -0.8 [(-1.01, -0.59), M-H, REM, CI = 95%] favouring the NIRAF. The difference in the rate of permanent hypocalcemia log(OR) = -1.09 [(-2.34, 0.17), M-H, REM, CI = 95%] between the two arms was lower in the NIRAF arm but was not statistically significant. CONCLUSIONS NIRAF during total thyroidectomy helps in reducing postoperative hypocalcemia. Level of evidence-1.
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Affiliation(s)
- Karthik N Rao
- Department of Head and Neck Oncology, All India Institute of Medical Sciences, Raipur 492099, India
- Sri Shankara Cancer Hospital and Research Center, Bangalore 560004, India
| | - Renu Rajguru
- Department of Otorhinolaryngology and Head Neck Surgery, All India Institute of Medical Sciences, Raipur 492099, India
| | - Prajwal Dange
- Department of Head and Neck Oncology, All India Institute of Medical Sciences, Raipur 492099, India
| | - Diana Vetter
- Department of Visceral and Transplant Surgery, University Hospital Zurich, 8032 Zurich, Switzerland
| | - Frederic Triponez
- Department of Thoracic and Endocrine Surgery, University Hospitals of Geneva, 1205 Geneva, Switzerland
| | - Iain J Nixon
- Department of Surgery and Otolaryngology, Head and Neck Surgery, Edinburgh University, Edinburgh EH3 9YL, UK
| | - Gregory W Randolph
- Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Antti A Mäkitie
- Department of Otorhinolaryngology, Head and Neck Surgery, Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, 00014 Helsinki, Finland
| | - Mark Zafereo
- Department of Head & Neck Surgery, MD Anderson Cancer Center, Houston, TX 77005, USA
| | - Alfio Ferlito
- Coordinator of the International Head and Neck Scientific Group, 35100 Padua, Italy
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Soares CSP, Koga KH, Moriguchi SM, Terra SA, Tagliarini JV, de Vasconcelos Affonso PHD, da Silva Pechutti M, da Silva Mazeto GMF. Development of a tool to calculate the probability of hypocalcemia after total thyroidectomy: a prospective study. Langenbecks Arch Surg 2024; 409:33. [PMID: 38195723 DOI: 10.1007/s00423-024-03229-8] [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: 11/02/2023] [Accepted: 01/03/2024] [Indexed: 01/11/2024]
Abstract
PURPOSE This study aimed to evaluate the ability of the percentage of decrease in serum PTH level in the first 8 h after total thyroidectomy (TT) to predict hypocalcemia requiring Ca supplementation and develop a tool to predict it. METHODS 97 patients who underwent TT with measurement of preoperative parathyroid hormone (PTH) levels were prospectively evaluated 1 and 8 h after TT; postoperative magnesium (Mg2PO) and phosphorus levels were evaluated on the 2nd day after surgery. The percentage of decrease in PTH level 1 h (%dPTH1h) and 8 h (%dPTH8h) postoperatively and predictors of hypocalcemia requiring Ca supplementation were evaluated and an equation was developed to predict this outcome. RESULTS %dPTH1h (p = 0.002), %dPTH8h (p = 0.001) and (Mg2PO) (p < 0.01) were isolated predictors of postoperative hypocalcemia requiring Ca supplementation. The data obtained led to the development of two tools to predict this complication. CONCLUSIONS The percentage of decrease in PTH level 1 h and 8 h postoperatively and the magnesium level on the 2nd day after surgery were predictors of more severe hypocalcemia, and an auxiliary tool for predicting this complication was developed.
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Affiliation(s)
- Carlos Segundo Paiva Soares
- Department of Surgical Specialties and Anesthesiology, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil.
- Department of Surgical Specialties and Anesthesiology, Av. Professor Mário Rubens Guimarães Montenegro, s/n, UNESP Campus de Botucatu, Botucatu, SP, CEP 18618-687, Brazil.
| | - Katia Hiromoto Koga
- Nuclear Medicine Department, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil
| | - Sonia Marta Moriguchi
- Nuclear Medicine Department, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil
| | - Simone Antunes Terra
- Pathology Department, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil
| | - José Vicente Tagliarini
- Department of Surgical Specialties and Anesthesiology, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil
| | | | - Monise da Silva Pechutti
- Internal Medicine Department, Botucatu Medical School, Sao Paulo State University - Unesp, Botucatu, SP, 18618970, Brazil
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Zhang H, Li X, Qu Z, Zhang W, Wang Q, Cao D, Wang Y, Wang X, Wang Y, Yu L, Ding J. Effects of serum proteins on corrosion rates and product bioabsorbability of biodegradable metals. Regen Biomater 2023; 11:rbad112. [PMID: 38173765 PMCID: PMC10761199 DOI: 10.1093/rb/rbad112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/03/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024] Open
Abstract
Corrodible metals are the newest kind of biodegradable materials and raise a new problem of the corrosion products. However, the removal of the precipitated products has been unclear and even largely ignored in publications. Herein, we find that albumin, an abundant macromolecule in serum, enhances the solubility of corrosion products of iron in blood mimetic Hank's solution significantly. This is universal for other main biodegradable metals such as magnesium, zinc and polyester-coated iron. Albumin also influences corrosion rates in diverse trends in Hank's solution and normal saline. Based on quantitative study theoretically and experimentally, both the effects on corrosion rates and soluble fractions are interpreted by a unified mechanism, and the key factor leading to different corrosion behaviors in corrosion media is the interference of albumin to the Ca/P passivation layer on the metal surface. This work has illustrated that the interactions between metals and media macromolecules should be taken into consideration in the design of the next-generation metal-based biodegradable medical devices in the formulism of precision medicine. The improved Hank's solution in the presence of albumin and with a higher content of initial calcium salt is suggested to access biodegradable metals potentially for cardiovascular medical devices, where the content of calcium salt is calculated after consideration of chelating of calcium ions by albumin, resulting in the physiological concentration of free calcium ions.
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Affiliation(s)
- Hongjie Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xin Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Zehua Qu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Wanqian Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Qunsong Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yaoben Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xin Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yang Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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Mannoh EA, Baregamian N, Thomas G, Solόrzano CC, Mahadevan-Jansen A. Comparing laser speckle contrast imaging and indocyanine green angiography for assessment of parathyroid perfusion. Sci Rep 2023; 13:17270. [PMID: 37828222 PMCID: PMC10570279 DOI: 10.1038/s41598-023-42649-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/13/2023] [Indexed: 10/14/2023] Open
Abstract
Accurate intraoperative assessment of parathyroid blood flow is crucial to preserve function postoperatively. Indocyanine green (ICG) angiography has been successfully employed, however its conventional application has limitations. A label-free method overcomes these limitations, and laser speckle contrast imaging (LSCI) is one such method that can accurately detect and quantify differences in parathyroid perfusion. In this study, twenty-one patients undergoing thyroidectomy or parathyroidectomy were recruited to compare LSCI and ICG fluorescence intraoperatively. An experimental imaging device was used to image a total of 37 parathyroid glands. Scores of 0, 1 or 2 were assigned for ICG fluorescence by three observers based on perceived intensity: 0 for little to no fluorescence, 1 for moderate or patchy fluorescence, and 2 for strong fluorescence. Speckle contrast values were grouped according to these scores. Analyses of variance were performed to detect significant differences between groups. Lastly, ICG fluorescence intensity was calculated for each parathyroid gland and compared with speckle contrast in a linear regression. Results showed significant differences in speckle contrast between groups such that parathyroids with ICG score 0 had higher speckle contrast than those assigned ICG score 1, which in turn had higher speckle contrast than those assigned ICG score 2. This was further supported by a correlation coefficient of -0.81 between mean-normalized ICG fluorescence intensity and speckle contrast. This suggests that ICG angiography and LSCI detect similar differences in blood flow to parathyroid glands. Laser speckle contrast imaging shows promise as a label-free alternative that overcomes current limitations of ICG angiography for parathyroid assessment.
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Affiliation(s)
- Emmanuel A Mannoh
- Vanderbilt Biophotonics Center, Vanderbilt University, PMB 351631, Nashville, TN, 37235, USA.
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
| | - Naira Baregamian
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Giju Thomas
- Vanderbilt Biophotonics Center, Vanderbilt University, PMB 351631, Nashville, TN, 37235, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Carmen C Solόrzano
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Anita Mahadevan-Jansen
- Vanderbilt Biophotonics Center, Vanderbilt University, PMB 351631, Nashville, TN, 37235, USA.
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
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Reinke R, Londero SC, Almquist M, Rejnmark L, Rolighed L. Total thyroidectomy: reduction in postoperative hypoparathyroidism. Endocr Connect 2023; 12:e230198. [PMID: 37487033 PMCID: PMC10503220 DOI: 10.1530/ec-23-0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
Objective Total thyroidectomy is associated with a high risk of postoperative hypoparathyroidism, mainly due to the unintended surgical damage to the parathyroid glands or their blood supply. It is possible that surgeons who also perform parathyroid surgery see lower rates of postoperative hypoparathyroidism. In a single institution, we investigated the effects of restricting total thyroidectomy operations for Graves' disease to two surgeons who performed both thyroid and parathyroid surgeries. We aimed to evaluate the rates of postoperative hypoparathyroidism in a 10-year period with primary attention toward patients with Graves' disease. Design Retrospective cohort study from a single institution. Methods We defined the rate of permanent hypoparathyroidism after total thyroidectomy as the need for active vitamin D 6 months postoperatively. Between 2012 and 2016, seven surgeons performed all thyroidectomies. From January 2017, only surgeons also performing parathyroid surgery carried out thyroidectomies for Graves' disease. Results We performed total thyroidectomy in 543 patients. The rate of permanent hypoparathyroidism decreased from 28% in 2012-2014 to 6% in 2020-2021. For patients with Graves' disease, the rate of permanent hypoparathyroidism decreased from 36% (13 out of 36) in 2015-2016 to 2% (1 out of 56) in 2020-2021. In cancer patients, the rate of permanent hypoparathyroidism decreased from 30% (14 out of 46) in 2012-2014 to 10% (10 out of 51) in 2020-2021. Conclusion Restricting thyroidectomy to surgeons who also performed parathyroid operations reduced postoperative hypoparathyroidism markedly. Accordingly, we recommend centralisation of the most difficult thyroid operations to centres and surgeons with extensive experience in parathyroid surgery. Significance statement Thyroid surgery is performed by many different surgeons with marked differences in outcome. Indeed, the risk of postoperative permanent hypoparathyroidism may be very high in low-volume centres. This serious condition affects the quality of life and increases long-term morbidity and the patients develop a life-long dependency of medical treatments. We encountered a high risk of hypoparathyroidism after the operation for Graves' disease and restricted the number of surgeons to two for these operations. Further, these surgeons were experienced in both thyroid and parathyroid surgeries. We show a dramatic reduction in postoperative hypoparathyroidism after this change. Accordingly, we recommend centralisation of total thyroidectomy to surgeons with experience in both thyroid and parathyroid procedures.
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Affiliation(s)
- Rasmus Reinke
- Department of Otorhinolaryngology, Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Stefano Christian Londero
- Department of Otorhinolaryngology, Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Martin Almquist
- Department of Surgery, Lund University Hospital, Lund, Sweden
| | - Lars Rejnmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Rolighed
- Department of Otorhinolaryngology, Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark
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Cironi KA, Issa PP, Albuck AL, McCarthy C, Rezvani L, Hussein M, Luo X, Shama M, Toraih E, Kandil E. Comparison of Medical Management versus Parathyroidectomy in Patients with Mild Primary Hyperparathyroidism: A Meta-Analysis. Cancers (Basel) 2023; 15:3085. [PMID: 37370696 DOI: 10.3390/cancers15123085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/06/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Parathyroidectomy is the definitive cure for patients with primary hyperparathyroidism (pHPT) and has an annual prevalence of 0.2-1% in the United States. Some patients with mild disease are medically managed effectively using calcium-lowering medications and drugs against complications such as osteoporosis; however, many maintain a persistently high calcium level that negatively impacts their skeletal, renal, and psychogenic systems over the long term. This meta-analysis aims to compare the outcomes of medical management versus parathyroidectomy in patients with mild pHPT. STUDY DESIGN This meta-analysis was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines using PubMed, Embase, and Web of Science by two teams of investigators. Analysis was run using R packages. RESULTS A total of 12 publications including seven randomized control, two prospective, and three retrospective trials with a total of 1346 patients were included for analysis. The average follow-up for all patients was 41 ± 23.8 months. Demographics, pre-treatment calcium, PTH, and bone mineral density (BMD) were similar between the medical (N = 632) and surgical (N = 714) cohorts. Post-treatment calcium and PTH levels were significantly higher in the medical cohort (10.46 vs. 9.39, p < 0.01), (106.14 vs. 43.25, p = 0.001), respectively. Interestingly, the post-treatment PTH in the medical cohort increased when compared to pre-treatment (83.84 to 106.14). Patients in the medical cohort had lower BMD in lumbar (0.48 g/cm2; OR = 0.42, 95% CI = 0.21, 0.83), femoral (0.48; OR = 0.42, 95% CI = 0.29, 0.61), and hip (0.61; OR = 0.33, 95% CI = 0.13, 0.85). Incidences of fracture, nephrolithiasis, cardiovascular death, or overall mortality were not significantly different between the cohorts. CONCLUSIONS The present study is the most comprehensive meta-analysis on mild pHPT to date. Our findings reflect that parathyroidectomy is the superior option in the treatment of mild pHPT patients as opposed to medical management.
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Affiliation(s)
| | - Peter P Issa
- School of Medicine, Louisiana State University, New Orleans, LA 70112, USA
| | - Aaron L Albuck
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | | | - Leely Rezvani
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Mohammad Hussein
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Xinyi Luo
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Mohamed Shama
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Eman Toraih
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41511, Egypt
| | - Emad Kandil
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
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Carsote M, Nistor C. Forestalling Hungry Bone Syndrome after Parathyroidectomy in Patients with Primary and Renal Hyperparathyroidism. Diagnostics (Basel) 2023; 13:diagnostics13111953. [PMID: 37296804 DOI: 10.3390/diagnostics13111953] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Hungry bone syndrome (HBS), severe hypocalcemia following parathyroidectomy (PTX) due to rapid drop of PTH (parathormone) after a previous long term elevated concentration in primary (PHPT) or renal hyperparathyroidism (RHPT), impairs the outcome of underlying parathyroid disease. OBJECTIVE overview HBS following PTx according to a dual perspective: pre- and post-operative outcome in PHPT and RHPT. This is a case- and study-based narrative review. INCLUSION CRITERIA key research words "hungry bone syndrome" and "parathyroidectomy"; PubMed access; in extenso articles; publication timeline from Inception to April 2023. EXCLUSION CRITERIA non-PTx-related HBS; hypoparathyroidism following PTx. We identified 120 original studies covering different levels of statistical evidence. We are not aware of a larger analysis on published cases concerning HBS (N = 14,349). PHPT: 14 studies (N = 1545 patients, maximum 425 participants per study), and 36 case reports (N = 37), a total of 1582 adults, aged between 20 and 72. Pediatric PHPT: 3 studies (N = 232, maximum of 182 participants per study), and 15 case reports (N = 19), a total of 251 patients, aged between 6 and 18. RHPT: 27 studies (N = 12,468 individuals, the largest cohort of 7171) and 25 case reports/series (N = 48), a total of 12,516 persons, aged between 23 and 74. HBS involves an early post-operatory (emergency) phase (EP) followed by a recovery phase (RP). EP is due to severe hypocalcemia with various clinical elements (<8.4 mg/dL) with non-low PTH (to be differentiated from hypoparathyroidism), starting with day 3 (1 to 7) with a 3-day duration (up to 30) requiring prompt intravenous calcium (Ca) intervention and vitamin D (VD) (mostly calcitriol) replacement. Hypophosphatemia and hypomagnesiemia may be found. RP: mildly/asymptomatic hypocalcemia controlled under oral Ca+VD for maximum 12 months (protracted HBS is up to 42 months). RHPT associates a higher risk of developing HBS as compared to PHPT. HBS prevalence varied from 15% to 25% up to 75-92% in RHPT, while in PHPT, mostly one out of five adults, respectively, one out of three children and teenagers might be affected (if any, depending on study). In PHPT, there were four clusters of HBS indicators. The first (mostly important) is represented by pre-operatory biochemistry and hormonal panel, especially, increased PTH and alkaline phosphatase (additional indicators were elevated blood urea nitrogen, and a high serum calcium). The second category is the clinical presentation: an older age for adults (yet, not all authors agree); particular skeleton involvement (level of case reports) such as brown tumors and osteitis fibrosa cystica; insufficient evidence for the patients with osteoporosis or those admitted for a parathyroid crisis. The third category involves parathyroid tumor features (increased weight and diameter; giant, atypical, carcinomas, some ectopic adenomas). The fourth category relates to the intra-operatory and early post-surgery management, meaning an associated thyroid surgery and, maybe, a prolonged PTx time (but this is still an open issue) increases the risk, as opposite to prompt recognition of HBS based on calcium (and PTH) assays and rapid intervention (specific interventional protocols are rather used in RHPT than in PHPT). Two important aspects are not clarified yet: the use of pre-operatory bisphosphonates and the role of 25-hydroxyitamin D assay as pointer of HBS. In RHPT, we mentioned three types of evidence. Firstly, risk factors for HBS with a solid level of statistical evidence: younger age at PTx, pre-operatory elevated bone alkaline phosphatase, and PTH, respectively, normal/low serum calcium. The second group includes active interventional (hospital-based) protocols that either reduce the rate or improve the severity of HBS, in addition to an adequate use of dialysis following PTx. The third category involves data with inconsistent evidence that might be the objective of future studies to a better understanding; for instance, longer pre-surgery dialysis duration, obesity, an elevated pre-operatory calcitonin, prior use of cinalcet, the co-presence of brown tumors, and osteitis fibrosa cystica as seen in PHPT. HBS remains a rare complication following PTx, yet extremely severe and with a certain level of predictability; thus, the importance of being adequately identified and managed. The pre-operatory spectrum of assessments is based on biochemistry and hormonal panel in addition to a specific (mostly severe) clinical presentation while the parathyroid tumor itself might provide useful insights as potential risk factors. Particularly in RHPT, prompt interventional protocols of electrolytes surveillance and replacement, despite not being yet a matter of a unified, HBS-specific guideline, prevent symptomatic hypocalcemia, reduce the hospitalization stay, and the re-admission rates.
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Affiliation(s)
- Mara Carsote
- Department of Endocrinology, Carol Davila University of Medicine and Pharmacy & C.I. Parhon National Institute of Endocrinology, Aviatorilor Ave. 34-38, Sector 1, 011863 Bucharest, Romania
| | - Claudiu Nistor
- Department 4-Cardio-Thoracic Pathology, Thoracic Surgery II Discipline, Carol Davila University of Medicine and Pharmacy & Thoracic Surgery Department, Dr. Carol Davila Central Emergency University Military Hospital, 050474 Bucharest, Romania
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Tsutsumi K, Goshtasbi K, Ahmed KH, Khosravi P, Tawk K, Haidar YM, Tjoa T, Armstrong WB, Abouzari M. Artificial neural network prediction of post-thyroidectomy outcome. Clin Otolaryngol 2023. [PMID: 37096572 DOI: 10.1111/coa.14066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 02/13/2023] [Accepted: 04/09/2023] [Indexed: 04/26/2023]
Abstract
OBJECTIVES The goal of this study was to develop a deep neural network (DNN) for predicting surgical/medical complications and unplanned reoperations following thyroidectomy. DESIGN, SETTING, AND PARTICIPANTS The 2005-2017 American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was queried to extract patients who underwent thyroidectomy. A DNN consisting of 10 layers was developed with an 80:20 breakdown for training and testing. MAIN OUTCOME MEASURES Three primary outcomes of interest, including occurrence of surgical complications, medical complications, and unplanned reoperation were predicted. RESULTS Of the 21 550 patients who underwent thyroidectomy, medical complications, surgical complications and reoperation occurred in 1723 (8.0%), 943 (4.38%) and 2448 (11.36%) patients, respectively. The DNN performed with an area under the curve of receiver operating characteristics of .783 (medical complications), .709 (surgical complications) and .703 (reoperations). Accuracy, specificity and negative predictive values of the model for all outcome variables ranged 78.2%-97.2%, while sensitivity and positive predictive values ranged 11.6%-62.5%. Variables with high permutation importance included sex, inpatient versus outpatient and American Society of Anesthesiologists class. CONCLUSIONS We predicted surgical/medical complications and unplanned reoperation following thyroidectomy via development of a well-performing ML algorithm. We have also developed a web-based application available on mobile devices to demonstrate the predictive capacity of our models in real time.
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Affiliation(s)
- Kotaro Tsutsumi
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Khodayar Goshtasbi
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Khwaja H Ahmed
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Pooya Khosravi
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Karen Tawk
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Yarah M Haidar
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Tjoson Tjoa
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - William B Armstrong
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
| | - Mehdi Abouzari
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, USA
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10
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Samargandy S, Wadie J, Msallak H, Chiodo A, El Masri W, Hubbard B, Enepekides D, Higgins K, Assal A, Fine R, Fung R, Nicholas E, Beadle V, Eskander A. Parathyroid hormone-driven algorithms after thyroid surgery: Not one-size-fits-all. Head Neck 2023; 45:595-603. [PMID: 36571430 DOI: 10.1002/hed.27272] [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: 06/06/2022] [Revised: 11/12/2022] [Accepted: 11/29/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Underreported variation in parathyroid hormone (PTH) assays exists. Using quality improvement methods, we aimed to develop an institution-specific PTH-based protocol to predict hypocalcemia after thyroidectomy. METHODS We retrospectively reviewed patients who underwent total/completion thyroidectomy. A receiver operating curve (ROC) determined postoperative PTH cut-offs predictive of hypocalcemia. The stakeholders developed PTH-driven calcium management guidelines. Post-implementation outcomes were prospectively measured. RESULTS Pre-implementation, 95 patients were assessed. PTH ≤1.5 pmol/L (14.1 pg/ml) predicted hypocalcemia (96%sensitivity), and ≥2.8 pmol/L (26.4 pg/ml) predicted normocalcemia (99%specificity) (area under curve = 0.97, SEM = 0.018). PTH on the day of and morning after surgery were identically predictive. Post-implementation, 64 patients were assessed. Hypocalcemia occurred with PTH >2.8 pmol/L in 2 cases (3.1%). Calcium over-prescribing decreased from 13.7% to 3.1% (p = 0.06). Length of stay (LOS) > 2 nights decreased from 13% to 3.1% (p = 0.05). CONCLUSION A PTH-driven calcium management protocol post-thyroidectomy effectively reduces unnecessary calcium replacement and LOS. Given the variability in PTH assays, each institution may need to use individual cut-offs.
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Affiliation(s)
- Shireen Samargandy
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada
| | - John Wadie
- School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Haytham Msallak
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Albino Chiodo
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada
| | - William El Masri
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Bradley Hubbard
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Danny Enepekides
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada.,Department of Otolaryngology - Head and Neck Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Kevin Higgins
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada.,Department of Otolaryngology - Head and Neck Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Angela Assal
- Division of Endocrinology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Rebecca Fine
- Division of Endocrinology, Department of Medicine, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Raymond Fung
- Division of Endocrinology, Department of Medicine, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Everton Nicholas
- Division of Endocrinology, Department of Medicine, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Valrie Beadle
- Department of Nursing, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Antoine Eskander
- Department of Otolaryngology - Head and Neck Surgery, Michael Garron Hospital, Toronto, Ontario, Canada.,Department of Otolaryngology - Head and Neck Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
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11
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Muacevic A, Adler JR, Fallatah S, Almehmadi RA, Aljuaid H, Alsalem AS, Mahfouz MEM, Alosaimi M. Prevalence and Risk Factors for Hypoparathyroidism Following Total Thyroidectomy in Taif City. Cureus 2022; 14:e32460. [PMID: 36644104 PMCID: PMC9834760 DOI: 10.7759/cureus.32460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
Background Postoperative hypoparathyroidism has been investigated in health records and surgical cohorts, but the results have been highly variable and imprecise. It is not clear how often endocrinologists encounter this hormone deficit in clinical practice. Thus, the aim of this study is to determine the incidence of permanent hypoparathyroidism and the factors associated with it in a group of post-thyroidectomy patients followed at three tertiary care institutions in Taif city. Materials and Methods A retrospective cohort analysis was done to examine patients who had a total thyroidectomy in the city of Taif between January 1, 2015, and December 31, 2019. Patients were eligible for the study if they received total thyroidectomy, were above the age of 18 years, had surgical and pathological data available, and had been monitored in the same institution for at least a year after their thyroidectomy. Patients who did not return for follow-up care following surgery were excluded from the study. Results The incidence of hypoparathyroidism was 10.3%, and females had a higher prevalence (12.1%) than males (3.2%). In patients with two and three parathyroid glands, hypoparathyroidism was found to be more prevalent (33.3% and 25.5%) in permanent histological sections. There was no single independent risk factor for hypoparathyroidism according to a logistic regression model. Conclusion The incidence rate of hypoparathyroidism following total thyroidectomy was about 10.3%. There were no independent risk factors identified for hypoparathyroidism after total thyroidectomy. Permanent hypoparathyroidism severely affects the quality of life, and research should be done to prevent its incidence after thyroidectomy.
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12
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Abdelrahim HS, Amer AF, Mikhael Nageeb R. Indocyanine Green Angiography of Parathyroid Glands versus Intraoperative Parathyroid Hormone Assay as a Reliable Predictor for Post Thyroidectomy Transient Hypocalcemia. J INVEST SURG 2022; 35:1484-1491. [PMID: 35450501 DOI: 10.1080/08941939.2022.2066229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Prediction of postoperative hypocalcemia is a fundamental issue in thyroidectomy. Indocyanine green (ICG) angiography of parathyroid glands is a feasible method to detect the perfusion of parathyroid glands and predict postoperative hypocalcemia. MATERIALS AND METHODS A prospective observational study was conducted at Ain Shams University Hospitals between April 2018 and April 2021. The included cases of total thyroidectomy underwent intraoperative ICG fluorescence angiography to identify the four parathyroid glands and score each gland according to the viability. Patients in which less than four glands were identified were excluded. Intraoperative intact parathyroid hormone (ioPTH) level assay was also measured to compare with ICG in predicting postoperative transient hypocalcemia. RESULTS A total of 134 cases underwent total thyroidectomy during the study period. We could identify the four parathyroid glands in 90 patients, including them in the study. We had postoperative hypocalcemia in 28 cases (31.1%). The diagnostic accuracy of ICG angiography and ioPTH level assay was high and almost similar (82.22% versus 87.78%). Both were higher than the surgeons' diagnostic accuracy of visual inspection (62.22%). CONCLUSIONS ICG angiography of the parathyroid gland is a safe, reliable predictor for postoperative transient hypocalcemia with a high and almost similar accuracy compared to intraoperative parathyroid hormone level.
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Affiliation(s)
- Hossam S Abdelrahim
- Faculty of Medicine, General Surgery Department, Ain Shams University, Cairo, Egypt
| | - Ahmed F Amer
- Faculty of Medicine, General Surgery Department, Ain Shams University, Cairo, Egypt
| | - Ramy Mikhael Nageeb
- Faculty of Medicine, General Surgery Department, Ain Shams University, Cairo, Egypt
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13
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AKIN T, TURAN UF, ER S, ÖZDEN S, TEZ M, SAYLAM B. Does preoperative vitamin D deficiency delay recovery time from transient hypocalcemia after thyroidectomy? JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.1017305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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14
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Ouyang H, Wang B, Sun B, Cong R, Xia F, Li X. Application of Indocyanine Green Angiography in Bilateral Axillo-Breast Approach Robotic Thyroidectomy for Papillary Thyroid Cancer. Front Endocrinol (Lausanne) 2022; 13:916557. [PMID: 35813620 PMCID: PMC9260684 DOI: 10.3389/fendo.2022.916557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/12/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Indocyanine green angiography (ICGA) has been used to identify and preserve the parathyroid glands (PGs), and to evaluate PGs viability and function during thyroid surgery. However, evidence on the utilization of IGCA in thyroid cancer and robotic surgery is lacking. The efficacy of IGCA remains to be evaluated in PTC patients undergoing bilateral axillo-breast approach robotic thyroidectomy (BABA RT) and central neck dissection (CND). METHODS From March 2020 to August 2021, 81 papillary thyroid cancer (PTC) patients receiving total thyroidectomy and CND were enrolled in this retrospective analysis. An intravenous bolus of 7.5 mg ICG was administrated three times in the ICGA group (n=34). Medical records were reviewed and analyzed, including the baseline characteristics, surgical parameters, PGs-related parameters, and perioperative PTH and calcium levels. RESULTS The mean number of total identified PGs and preserved PGs were significantly more in the ICG group than in the control group (3.74 ± 0.45 vs. 3.15 ± 0.55, P<0.001; 3.12 ± 0.64 vs. 2.74 ± 0.57, P=0.007, respectively), as were PTH and calcium levels on POD 1 (23.16 ± 18.32 vs. 6.06 ± 7.74, P=0.039; 2.13 ± 0.11 vs. 2.08 ± 0.08, P=0.024, respectively). While there were no differences in PTH levels on POD 30. Additionally, patients with at least one well vascularized PG had higher ioPTH 3 and PTH on POD 1, which significantly suggested the absence of postoperative hypocalcemia. Although not statistically significant, ICGA seemed superior to relative ioPTH decline and ioPTH 3 in predicting postoperative hypocalcemia. CONCLUSION In PTC patients undergoing BABA RT and CND, ICGA is a simple, safe, effective, and cost-effective tool in better identification and preservation of PGs as well as evaluation of PGs viability and function, with the potential to preserve more PGs, guide more appropriate autotransplantation, and accurately predict postoperative hypocalcemia.
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Affiliation(s)
- Hui Ouyang
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Baojia Wang
- Department of the Operating Room, Xiangya Hospital, Central South University, Changsha, China
| | - Botao Sun
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Rong Cong
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Fada Xia
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fada Xia, ; Xinying Li,
| | - Xinying Li
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fada Xia, ; Xinying Li,
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15
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Hillary SL, Chooi JE, Wadsley J, Newell-Price JD, Brown NJ, Balasubramanian SP. Quality of Life in Post-Surgical Hypoparathyroidism (PoSH) in Thyroid and Parathyroid Surgery. World J Surg 2022; 46:3025-3033. [PMID: 36184675 PMCID: PMC9636109 DOI: 10.1007/s00268-022-06730-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Post-surgical hypoparathyroidism (PoSH) is often long term, with significant associated morbidity and ongoing treatment. A recent systematic review found impaired quality of life (QoL) in patients with PoSH, despite stable treatment. Most studies did not include an appropriate control arm and further studies were recommended, taking into account underlying disease and comorbidities. This study aims to compare QoL in patients with PoSH with appropriate control groups. METHODS This was a cross-sectional observational study using the general quality of life SF-36 tool and a hypocalcaemia symptom score (HcSS) to assess QoL in patients with PoSH and controls (who had similar surgery but without PoSH). Participants were identified from two patient groups (the Butterfly Thyroid Cancer Trust and the Association for Multiple Endocrine Neoplasia Disorders) and a single tertiary centre in the UK. RESULTS Four hundred and thirty-nine responses (female n = 379, PoSH n = 89) were included with a median (range) age of 52 (19-92) years. Reported dates of surgery ranged from 1973 to 2019. HcSS scores showed significantly more associated symptoms in patients with PoSH than those without (p < 0.001). Although there was no overall difference in QoL between groups, patients with PoSH consistently had lower scores (p = 0.008) in the energy/fatigue subdomain of the SF-36. CONCLUSION Patients with PoSH reported significantly more fatigue and loss of energy compared to appropriately matched controls, but overall QoL was not significantly different. Standardised QoL measures may not be sensitive enough to highlight the impact on QoL in these patients. A disease-specific tool may be required.
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Affiliation(s)
- Sarah L Hillary
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK.
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
| | - Je Ern Chooi
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Jonathan Wadsley
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
- Weston Park Hospital, Sheffield, UK
| | - John D Newell-Price
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Nicola J Brown
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Saba P Balasubramanian
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
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16
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Mannoh EA, Thomas G, Baregamian N, Rohde SL, Solórzano CC, Mahadevan-Jansen A. Assessing Intraoperative Laser Speckle Contrast Imaging of Parathyroid Glands in Relation to Total Thyroidectomy Patient Outcomes. Thyroid 2021; 31:1558-1565. [PMID: 34078120 PMCID: PMC8917893 DOI: 10.1089/thy.2021.0093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Background: Accurate assessment of parathyroid gland vascularity is important during thyroidectomy to preserve the function of parathyroid glands and to prevent postoperative hypocalcemia. Laser speckle contrast imaging (LSCI) has been shown to be accurate in detecting differences in parathyroid vascularity. In this surgeon-blinded prognostic study, we evaluate the relationship between intraoperative LSCI measurements and postoperative outcomes of total thyroidectomy patients. Methods: Seventy-two thyroidectomy patients were included in this study. After thyroid resection, an LSCI device was used to image all parathyroid glands identified, and a speckle contrast value was calculated for each. An average value was calculated for each patient, and the data were grouped according to whether the patient had normal (16-77 pg/mL) or low levels of parathyroid hormone (PTH) measured on postoperative day 1 (POD1). The aim of this study was to establish a speckle contrast threshold for classifying a parathyroid gland as adequately perfused and to determine how many such glands are required for normal postoperative parathyroid function. Results: A speckle contrast limit of 0.186 separated the normoparathyroid and hypoparathyroid groups with 87.5% sensitivity and 84.4% specificity: 7 of 8 patients with low PTH on POD1 had an average parathyroid speckle contrast above this limit, while 54 of 64 patients with normal postoperative PTH had an average parathyroid speckle contrast below this limit. Taking this value as the threshold for adequate parathyroid perfusion, it was determined that only one vascularized gland was needed for normal postoperative parathyroid function: 64 of 69 patients (92.8%) with at least one vascularized gland (determined by LSCI) had normal postoperative PTH, while all 3 patients (100%) with no vascularized glands had low postoperative PTH. Overall, the rates of temporary and permanent hypoparathyroidism in this study were 8.3% and 1.4%, respectively. Conclusions: LSCI is a promising technique for assessing parathyroid gland vascularity. It has the potential to help reduce the incidence of hypocalcemia after thyroidectomy by providing surgeons with additional information during surgery to aid in the preservation of parathyroid function.
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Affiliation(s)
- Emmanuel A. Mannoh
- Vanderbilt Biophotonics Center, Vanderbilt University, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Giju Thomas
- Vanderbilt Biophotonics Center, Vanderbilt University, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Naira Baregamian
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sarah L. Rohde
- Department of Otolaryngology—Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Carmen C. Solórzano
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Anita Mahadevan-Jansen
- Vanderbilt Biophotonics Center, Vanderbilt University, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Address correspondence to: Anita Mahadevan-Jansen, PhD, Department of Biomedical Engineering, Vanderbilt University, Station B, Box 351631, Nashville, TN 37235, USA
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17
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Serra C, Silveira L. Evaluation of structural and ultrastructural changes in thyroid and parathyroid glands after near infrared irradiation: study on an animal model. PeerJ 2021; 9:e11891. [PMID: 34430082 PMCID: PMC8349517 DOI: 10.7717/peerj.11891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/10/2021] [Indexed: 11/21/2022] Open
Abstract
Intraoperative identification of parathyroid glands is a tough task for surgeons performing thyroid or parathyroid surgery, because the small size, color and shape of these glands hinder their discrimination from other cervical tissues. In 2011, Paras described the autofluorescence of parathyroid glands, a property that could facilitate their intraoperative identification. Parathyroid glands submitted to a 785 nm laser beam emit fluorescence in the near infrared range, with a peak at 822 nm. As the intrinsic properties of secretory tissues may be affected by the exposure to the near infrared light, a situation that could preclude their intraoperative utilization, the authors compared the structural and ultra-structural patterns of rat’s thyroid and parathyroid glands submitted to irradiation replicating the conditions that allow their intraoperative identification, with those of non irradiated animals. Twenty-four Wistar rats were divided into six groups: animals of Groups 1, 3 and 5 were submitted under general anesthesia to direct irradiation of the cervical area with a 780 nm LED light for 3 minutes through a cervical incision, and animals of Groups 2, 4 and 6 were submitted to cervical dissection without irradiation. Animals of were euthanized immediately (Groups 1 and 2), at Day 30 (Groups 3 and 4) at and at Day 60 (Groups 5 and 6) and thyroid and parathyroid glands were removed: one lobe was prepared for conventional pathological examination and the other lobe for electron microscopy observed by three experienced pathological experts. Twenty-four samples were prepared for conventional histology and there were no alterations reported in any group. Due to technical problems, only 21 samples were observed by electron microscopy and there were no differences in the ultrastructure of parathyroid and thyroid glands, namely the nuclear pattern, mitochondria, endoplasmic reticulum or secretory granules, in any of the groups. These results confirm the innocuity of near infrared irradiation’, allowing its intraoperative utilization.
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Affiliation(s)
- Carlos Serra
- Hospital do SAMS, Lisboa, Portugal.,Universidade da Beira Interior, Faculdade de Ciências da Saúde, Covilhã, Portugal
| | - Luis Silveira
- Universidade da Beira Interior, Faculdade de Ciências da Saúde, Covilhã, Portugal
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18
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Kim E, Ramonell KM, Mayfield N, Lindeman B. Parathyroid allotransplantation for the treatment of permanent hypoparathyroidism: A systematic review. Am J Surg 2021; 223:652-661. [PMID: 34304848 DOI: 10.1016/j.amjsurg.2021.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/22/2021] [Accepted: 07/18/2021] [Indexed: 11/01/2022]
Abstract
BACKGROUND Hypoparathyroidism is the most common complication of bilateral operations in the central neck. No formal guidelines exist for the management of permanent hypoparathyroidism. Current treatment involving medical supplementation increases resource utilization and patient morbidity while decreasing quality of life. Parathyroid allotransplant (PA) offers a promising therapy; however, the optimal technique and role of immunosuppression (IS) in PA remain unclear. METHODS We performed a systematic search of the Embase, MEDLINE, and Cochrane Library databases to identify studies investigating PA for treatment of hypoparathyroidism. RESULTS A total of 24 studies including 186 individual allograft transplants in 146 patients were identified. Pooled graft survival for allotransplants in transplant-naïve vs prior transplant recipients was 29.9% and 80%, respectively. CONCLUSIONS PA using normocellular, fresh parathyroid donor tissue that is ABO-compatible, with induction and, at minimum, short-term maintenance IS presents a potentially safe and effective therapeutic option for permanent hypoparathyroidism in patients tolerating IS.
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Affiliation(s)
- Eric Kim
- University of Alabama at Birmingham, Department of Surgery, Division of Breast and Endocrine Surgery, Birmingham, AL, USA.
| | - Kimberly M Ramonell
- University of Alabama at Birmingham, Department of Surgery, Division of Breast and Endocrine Surgery, Birmingham, AL, USA.
| | - Nicolas Mayfield
- University of Alabama at Birmingham, Department of Surgery, Division of Breast and Endocrine Surgery, Birmingham, AL, USA.
| | - Brenessa Lindeman
- University of Alabama at Birmingham, Department of Surgery, Division of Breast and Endocrine Surgery, Birmingham, AL, USA.
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19
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A territory-wide assessment of the incidence of persistent hypoparathyroidism after elective thyroid surgery and its impact on new fracture risk over time. Surgery 2021; 170:1369-1375. [PMID: 34116859 DOI: 10.1016/j.surg.2021.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Although persistent (≥6 months) postoperative hypoparathyroidism is often believed to be rare after elective total thyroidectomy, we hypothesized a higher incidence in the community and that patients with persistent postoperative hypoparathyroidism may have a higher fracture risk. A population-based analysis was performed using an electronic health database to address these issues. METHODS All elective total thyroidectomies performed in 14 major hospitals across the territory over 20 years were analyzed. Persistent postoperative hypoparathyroidism was defined by the requirement of oral calcium and vitamin D shortly postoperatively and continued for ≥6 months. Those with albumin-corrected calcium <1.90 mmol/L on ≥1 occasion beyond 1 year postoperation were considered suboptimally controlled. Patients were followed until an index fracture, death, or the time of analysis, whichever was earlier. Multivariable Cox regression analysis was used to identify clinical predictors for fractures. RESULTS Among 4,123 eligible patients, 460 patients (11.2%) had persistent postoperative hypoparathyroidism. Over a median of 10.3 years, 126 patients suffered from a new fracture (2.77 per 1,000 person-years). There was no difference in fracture events between patients with and without persistent postoperative hypoparathyroidism (P = .761). Subgroup analyses according to the adequacy of persistent postoperative hypoparathyroidism control did not reveal significant differences in fracture events. Age, female, history of fall, and diabetes independently predicted post-thyroidectomy fractures. CONCLUSION Persistent postoperative hypoparathyroidism appeared to be a more common complication in the community after elective total thyroidectomy than previously thought. We did not observe a significant difference in fracture risk between patients with and without persistent postoperative hypoparathyroidism. The impact of persistent postoperative hypoparathyroidism control on fracture risk remained to be determined.
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20
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Risks and prediction of postoperative hypoparathyroidism due to thyroid surgery. Sci Rep 2021; 11:11876. [PMID: 34088943 PMCID: PMC8178369 DOI: 10.1038/s41598-021-91277-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/17/2021] [Indexed: 11/23/2022] Open
Abstract
We aimed to investigate the prevalence of postoperative hypoparathyroidism (PoH), the relevant factors, and predictors of transient or permanent hypoparathyroidism. The files of 352 patients who underwent bilateral total thyroidectomy alone or with central lymph node dissection and/or lateral neck dissection between June 1, 2019, and November 30, 2019, were retrospectively evaluated. Also, calcium and parathyroid hormone levels measured preoperatively and 4–6 h after surgery, follow-up examination results, and time to resolution of transient PoH were recorded. 16.48% (n = 58) of the surgical patients developed transient PoH and 3.98% (n = 14) developed permanent PoH. Length of hospital stay increased in patients who developed PoH (p < 0.001). Transient PoH developed less in patients who underwent parathyroid autotransplantation, while permanent PoH was not detected (p = 0.001). PoH development was not significantly correlated with nodule size as measured by preoperative thyroid ultrasonography (p = 0.944). Patients who had a serum PTH level ≤ 5.95 pmol/L 4–6 h after surgery had a greater risk of developing permanent PoH (OR 134.84, 95% CI 17.25–1053.82). PoH is more common in female gender and is not significantly correlated with nodule size. Parathyroid autotransplantation can prevent the development of PoH.
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21
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Xing Z, Qiu Y, Fei Y, Xia B, Abuduwaili M, Zhu J, Su A. Protective strategy of parathyroid glands during thyroid lobectomy: A retrospective cohort and case-control study. Medicine (Baltimore) 2021; 100:e21323. [PMID: 33832057 PMCID: PMC8036091 DOI: 10.1097/md.0000000000021323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/17/2020] [Indexed: 02/05/2023] Open
Abstract
Parathyroid protection during thyroid lobectomy was not illustrated previously. Aim of this study was to find out the influence of parathyroid glands in situ preservation and autotransplantation on postoperative parathyroid function in thyroid lobectomy.Consecutive patients who underwent primary thyroid lobectomy with unilateral central neck dissection for papillary thyroid carcinoma in our center were included retrospectively. Postoperative hypoparathyroidism was defined as low parathyroid hormone (PTH) levels (<1.6 pmol/L) and keeping over 6 months was defined as permanent. Patients were divided into 3 groups: all identified parathyroid glands preserved in situ (preservation group); at least one parathyroid gland autotransplanted without accidental resection (autotransplantation group); at least one parathyroid gland accidental resected (resection group).A total of 425 patients were included. No permanent hypoparathyroidism was reported, and the rates of transient hypoparathyroidism were similar among all groups. Significantly lower serum PTH levels were found in autotransplantation group versus preservation group at postoperative 1-day (3.77 ± 1.61 vs 4.72 ± 2.31, P < .001). Transient hypoparathyroidism was significantly associated with reduced intraoperative carbon nanoparticles utilization (57.1% vs 77.4%, P = .039).Thyroid lobectomy was a safe surgical method for parathyroid protection no matter the practice to ipsilateral parathyroid glands. However, preservation of all parathyroid glands was still recommended considering relatively stable PTH levels.
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Affiliation(s)
| | - Yuxuan Qiu
- Center of Thyroid & Parathyroid Surgery
- Department of Ultrasound, West China Hospital, Sichuan University, PR China
| | - Yuan Fei
- Center of Thyroid & Parathyroid Surgery
| | | | | | | | - Anping Su
- Center of Thyroid & Parathyroid Surgery
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Van Slycke S, Van Den Heede K, Bruggeman N, Vermeersch H, Brusselaers N. Risk factors for postoperative morbidity after thyroid surgery in a PROSPECTIVE cohort of 1500 patients. Int J Surg 2021; 88:105922. [PMID: 33774174 DOI: 10.1016/j.ijsu.2021.105922] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/20/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Postoperative hypocalcaemia, recurrent laryngeal nerve palsy and postoperative bleeding are the most frequent postoperative complications after thyroid surgery, and therefore often used as quality indicators of thyroid surgery. We aimed to assess postoperative morbidity in a high-volume endocrine surgery unit, and to detect which factors are associated with higher risks. METHODS Prospective surgical cohort in a high-volume tertiary referral centre for endocrine surgery in xxx. The first 1500 patients operated with hemi or total thyroidectomy during 2010-2019 were included. Postoperative hypocalcaemia, recurrent laryngeal nerve palsy and postoperative bleeding were assessed in relation to pre- and peri-operative characteristics using multivariable logistic regression analyses, expressed as odds ratios and 95% confidence intervals. RESULTS Overall, 1043 patients (69.5%) received a total thyroidectomy and 457 (30.5%) a hemithyroidectomy. Permanent hypocalcaemia occurred in 3.1%, permanent recurrent laryngeal nerve palsy in 1.8% and surgical reintervention for bleeding in 2.6%. Younger age, female sex and cancer were risk factors for permanent hypocalcaemia. No clear risk factors could be identified for permanent nerve palsy. Female sex, high body mass index and heavier thyroids were protective against postoperative bleeding after total thyroidectomy. CONCLUSIONS Surgical experience in endocrine surgery seems beneficial for clinical outcomes and contributes to organizational efficiency. A low complication risk can be obtained by trained high-volume endocrine surgeons, yet the risk is not negligible.
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Affiliation(s)
- Sam Van Slycke
- Department of General and Endocrine Surgery, Onze-Lieve-Vrouw (OLV) Hospital Aalst, Moorselbaan 164, 9300, Aalst, Belgium; Department of Head and Skin, University Hospital Ghent, Corneel Heymanslaan 10, 9000, Ghent, Belgium; Department of General Surgery, AZ Damiaan, Gouwelozestraat 100, 8400, Ostend, Belgium
| | - Klaas Van Den Heede
- Department of General and Endocrine Surgery, Onze-Lieve-Vrouw (OLV) Hospital Aalst, Moorselbaan 164, 9300, Aalst, Belgium; Department of Endocrine Surgery, Hammersmith, 72 Du Cane Road, W12 0HS, London, UK
| | - Niels Bruggeman
- Department of General and Endocrine Surgery, Onze-Lieve-Vrouw (OLV) Hospital Aalst, Moorselbaan 164, 9300, Aalst, Belgium
| | - Hubert Vermeersch
- Department of Head and Skin, University Hospital Ghent, Corneel Heymanslaan 10, 9000, Ghent, Belgium; Plastic and Reconstructive Surgery, Department of Human Structure and Repair, University Hospital Ghent, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Nele Brusselaers
- Department of Head and Skin, University Hospital Ghent, Corneel Heymanslaan 10, 9000, Ghent, Belgium; Centre for Translational Microbiome Research Department of Microbiology, Tumour and Cell Biology, Karolinska Institutet, Karolinska Hospital, Solnavägen 9, 17165, Stockholm, Sweden.
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Lammert A, Nowak K, Weber R, Rotter N, Schölch S, Krämer BK, Lammert A. [Postoperative hypocalcemia - the most common complication of endocrine head and neck surgery: acute management]. Laryngorhinootologie 2021; 100:610-617. [PMID: 33652494 DOI: 10.1055/a-1381-8286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND In Germany, 8000 patients are affected by postoperative hypoparathyroidism per year following surgery of the thyroid gland, parathyroidal glands and the larynx. Patients do not only suffer from paresthesia in the acute phase of this complication, but are also adversely affected by the fear of loss of control following episodes of tetany even years after the first episode. OBJECTIVES Discussion of a diagnostic pathway and presentation of a management pathway for postoperative hypocalcemia. METHODS Narrative review, analysis and discussion of current literature and expert recommendations. RESULTS Early determination of calcium and parathyroid hormone allows timely diagnosis and treatment of postoperative hypoparathyroidism. Active vitamin D is pivotal for the resorption of calcium. Only the combined treatment with active vitamin D and calcium can mitigate or prevent the postoperative drop of calcium levels. CONCLUSIONS A standard operating procedure (SOP) for postoperative hypoparathyroidism should be implemented in every surgical department. An SOP for diagnosis and treatment of postoperative hypoparathyroidism is proposed for institutional individualization and implementation.
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Affiliation(s)
- Anne Lammert
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universität Heidelberg, Universitätsmedizin Mannheim, Mannheim, Germany
| | - Kai Nowak
- Klinik für Allgemein-, Gefäß- und Thoraxchirurgie, RoMed Klinikum, Rosenheim, Germany
| | - Roland Weber
- Medizinische Klinik II, RoMed Kliniken, Rosenheim, Germany
| | - Nicole Rotter
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universität Heidelberg, Universitätsmedizin Mannheim, Mannheim, Germany
| | - Sebastian Schölch
- Chirurgische Klinik, Universität Heidelberg, Universitätsmedizin Mannheim, Mannheim, Germany
| | - Bernhard K Krämer
- V. Medizinische Klinik, Universität Heidelberg, Universitätsmedizin Mannheim, Mannheim, Germany
| | - Alexander Lammert
- V. Medizinische Klinik, Universität Heidelberg, Universitätsmedizin Mannheim, Mannheim, Germany.,Apherese- und Dialysezentrum Grünstadt, Praxis für Diabetes, Stoffwechsel und Nierenerkrankungen, Grünstadt, Germany
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von Ahnen T, Wirth U, von Ahnen M, Kroenke J, Busch P, Schardey HM, Schopf S. Endoscopic cephalic access thyroid surgery (EndoCATS) using the retroauricular approach - a single centre retrospective data analysis. Surg Endosc 2021; 36:117-125. [PMID: 33427912 DOI: 10.1007/s00464-020-08244-6] [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: 06/05/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Due to improvements in endoscopic as well as robotic technology, and a request for better cosmetic results, there was a significant increase in thyroid surgery using these methods during the past decade. METHODS The aim of our study is to evaluate the perioperative short- and long-term outcome as well as the learning curve of EndoCATS and the Quality of Life (QoL). RESULTS A total of 150 patients with 152 hemithyroidectomies who underwent endoscopic thyroid surgery by EndoCATS between 2010 and 2016 were enrolled in this study. The mean specimen volume was 15.04 g ± 7.89 g. The mean operation time was 132.79 ± 50.52 min. There is a significant reduction of the operation time after the 53th case. (p < 0.05) There was no acute rebleeding or permanent hypoparathyroidism. Permanent RLN palsy occurred in 3 nerves at risk (NAR) 1.97%. There were no cases of pneumothorax, postoperative infections or skin flap ischemia. 94.11% of the patients describe their state of general health as good as or better than before the surgery. CONCLUSIONS EndoCATS is a safe and effective, but a demanding single port access procedure; therefore, extensive training is required. An advantage is the near ideal visualization of the RLN and the parathyroid glands as well as the ability to recover even large specimens without difficulties.
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Affiliation(s)
- Thomas von Ahnen
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany.
| | - Ulrich Wirth
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany.,Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Martin von Ahnen
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany
| | - Julia Kroenke
- Department of Radiology, Agatharied Hospital, Hausham, Germany
| | - Peter Busch
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany
| | - Hans-Martin Schardey
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany
| | - Stefan Schopf
- Department of General, Visceral, Vascular and Endocrine Surgery, Agatharied Hospital, Norbert Kerkel Platz, 83734, Hausham, Germany.,Department of General Surgery, RoMed Klinik Bad, Aibling, Germany
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25
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Zhang H, Zhang Y, Qiu C, Zhu W, Wen M, Lao X. Differentiation of human umbilical cord mesenchymal stem cells into parathyroid cells by editing the PTH gene with the CRISPR/Cas9 system. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1961608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Huiting Zhang
- Department of General Surgery, Zhaoqing First People’s Hospital, Zhaoqing, Guangdong, PR China
| | - Yiting Zhang
- Department of General Surgery, Zhaoqing First People’s Hospital, Zhaoqing, Guangdong, PR China
| | - Changhong Qiu
- Department of General Surgery, Zhaoqing First People’s Hospital, Zhaoqing, Guangdong, PR China
| | - Wentian Zhu
- Department of General Surgery, Zhaoqing First People’s Hospital, Zhaoqing, Guangdong, PR China
| | - Mingbo Wen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, PR China
| | - Xuejun Lao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, PR China
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Zhang Y, Zheng W, Huang Y, Chen C. Vitamin D Insufficiency Predicts Susceptibility of Parathyroid Hormone Reduction after Total Thyroidectomy in Thyroid Cancer Patients. Int J Endocrinol 2021; 2021:8657918. [PMID: 34956363 PMCID: PMC8695026 DOI: 10.1155/2021/8657918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/01/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Given its role in the regulation of calcium and PTH levels, vitamin D was presumed as a potential predictor of postoperative hypoparathyroidism. However, the reports about their association were controversial. This study aims to reveal the relationship between preoperative vitamin D and postoperative parathyroid hormone (PTH). METHODS A total of 242 papillary thyroid cancer (PTC) patients who underwent total thyroidectomy (TT) during the period from June 2016 to December 2017 at our hospital were enrolled. Patients were divided into two groups, HypoP and Non-HypoP groups, based on postoperative PTH < 15.0 or ≥15.0 pg/mL, and ΔPTH50+ and ΔPTH50- groups, based on postoperative PTH reduction ratio ≥ 50% or <50%. Clinicopathological features and laboratory data were compared between two sets of groups. RESULTS Preoperative PTH level was lower in the HypoP group than in the Non-HypoP group (42.83 vs. 47.52 pg/mL, p=0.018). No significant difference of vitamin D insufficiency was found between the HypoP and Non-HypoP groups (80.8% vs. 74.1%, p=0.226). The rate of vitamin D insufficiency was higher in the ΔPTH50+ group than in the ΔPTH50- group (82.6% vs. 68.4%, p=0.010). By multivariate logistic regression analysis, vitamin D insufficiency was an independent predictor of postoperative PTH reduction ratio ≥ 50% (OR = 2.2, p=0.017). CONCLUSION Vitamin D insufficiency is not associated with postoperative PTH in PTC patients undergoing TT. However, vitamin D insufficiency is an independent predictor of postoperative PTH reduction ratio.
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Affiliation(s)
- Yan Zhang
- Department of Head and Neck Surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, No. 1 East Banshan Road, Hangzhou 310022, Zhejiang, China
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Weihui Zheng
- Department of Head and Neck Surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, No. 1 East Banshan Road, Hangzhou 310022, Zhejiang, China
| | - Yuanyuan Huang
- Department of Surgery, Hangzhou Fuyang Women and Children Hospital, No. 25 Hengliangting Road, Hangzhou 311400, Zhejiang, China
| | - Chao Chen
- Department of Head and Neck Surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, No. 1 East Banshan Road, Hangzhou 310022, Zhejiang, China
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Serra C, Canudo A, Silveira L. Intraoperative identification of parathyroid glands by autofluorescence on total thyroidectomy – Does it really reduces post-operative hypocalcemia? SURGERY IN PRACTICE AND SCIENCE 2020. [DOI: 10.1016/j.sipas.2020.100011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Systematic review of incidence, risk factors, prevention and treatment of post-laryngectomy hypoparathyroidism. Eur Arch Otorhinolaryngol 2020; 278:1337-1344. [PMID: 32700234 PMCID: PMC8058002 DOI: 10.1007/s00405-020-06213-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/14/2020] [Indexed: 11/30/2022]
Abstract
Purpose Post-laryngectomy hypoparathyroidism is associated with significant short- and long-term morbidities. This systematic review aimed to determine incidence, risk factors, prevention and treatment of post-laryngectomy hypoparathyroidism. Methods Medline, EMBASE and the Cochrane library were searched for relevant articles on hypocalcaemia and/or hypoparathyroidism after laryngectomy or pharyngectomy. Two authors independently screened titles and abstracts from the search. Data from individual studies were collated and presented (without meta-analysis). Quality assessment of included studies was undertaken. The review protocol was registered in the PROSPERO database (CRD42019133879). Results Twenty-three observational studies were included. The rates of transient and long-term hypoparathyroidism following laryngectomy with concomitant hemi- or total thyroidectomy ranged from 5.6 to 57.1% (n = 13 studies) and 0 to 12.8% (n = 5 studies), respectively. Higher transient (62.1–100%) and long-term (12.5–91.6%) rates were reported in patients who had concomitant oesophagectomy and total thyroidectomy (n = 4 studies). Other risk factors included bilateral selective lateral neck dissection, salvage laryngectomy and total pharyngectomy. There is a lack of data on prevention and management. Conclusion Hypoparathyroidism occurs in a significant number of patients after laryngectomy. Patients who underwent laryngectomy with concomitant hemithyroidectomy may still develop hypoparathyroidism. Research on prevention and treatment is lacking and needs to be encouraged.
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A Nomogram to Predict Hungry Bone Syndrome After Parathyroidectomy in Patients With Secondary Hyperparathyroidism. J Surg Res 2020; 255:33-41. [PMID: 32540578 DOI: 10.1016/j.jss.2020.05.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/07/2020] [Accepted: 05/10/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Parathyroidectomy (PTX) has been demonstrated as an effective treatment for patients with secondary hyperparathyroidism (SHPT) of renal origin. However, severe hypocalcemia, called hungry bone syndrome (HBS), is a common complication following PTX in these patients and can lead to poor clinical outcomes, even death. Therefore, exploring risk factors for HBS and establishing a prediction nomogram allow intensive monitoring and prompt treating this postoperative complication, which is the main purpose of this study. METHODS From October 2016 to October 2018, PTX with autotransplantation (PTX + AT) procedures were performed in 131 patients with SHPT of renal origin by a surgeon and his team in the Thyroid and Parathyroid Surgery Center, West China Hospital, Sichuan University, China. After applying the inclusion and exclusion criteria, a total of 114 patients were enrolled for analyses in this study. Comprehensive data including preoperative, intraoperative, and postoperative variables were prospectively collected and retrospectively analyzed. The univariate and multivariate logistic regression analyses with internal validation by bootstrapping were used to confirm independent risk factors for postoperative HBS. The nomogram was developed based on the statistical analysis results. Receiver operator characteristic (ROC) curves were drawn to compare the prediction performance among different predictors. RESULTS The occurrence of postoperative HBS was 76.3% (87 out of 114 patients) in this study. Univariate analysis showed that preoperative intact parathyroid hormone (iPTH), serum alkaline phosphatase, bone-specific alkaline phosphatase (bone-ALP) were significantly higher in HBS group than those in non-HBS group, while preoperative corrected serum calcium and albumin were significantly lower in HBS group than those in non-HBS group. Total weight of resected parathyroid glands was significantly heavier in HBS group versus non-HBS group. Multivariate logistic regression analysis with internal validation by bootstrapping demonstrated preoperative iPTH, bone-ALP, preoperative corrected serum calcium, and total weight of resected parathyroid glands were independently associated with postoperative HBS. The nomogram including the abovementioned four independent predictors was constructed and showed better prediction performance than the other four predictors in terms of postoperative HBS. CONCLUSIONS On the basis of this study, we found higher preoperative iPTH level, higher bone-ALP level, heavier total weight of resected parathyroid glands, and lower preoperative corrected serum calcium level were independent predictors of postoperative HBS in patients with SHPT of renal origin. The nomogram can expediently, accurately, and objectively predict the risk of postoperative HBS in individual patient with SHPT of renal origin.
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Bumber B, Potroško V, Vugrinec O, Ferenčaković M, Gršić K. Hypocalcemia After Completion Thyroidectomy for Papillary Thyroid Carcinoma. Acta Clin Croat 2020; 59:136-145. [PMID: 34219896 PMCID: PMC8212615 DOI: 10.20471/acc.2020.59.s1.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Surgical management of papillary thyroid carcinoma (PTC) includes total thyroidectomy and lobectomy. After lobectomy, a reoperation called completion thyroidectomy is occasionally required. Postoperative hypocalcemia is the most common complication associated with thyroid surgery. Our main goal was to determine if there is a significant difference between the incidence rate of postoperative hypocalcemia in patients who underwent total thyroidectomy for PTC compared with patients who underwent completion thyroidectomy for PTC. Apart from that, we analyzed the following potential predictive factors for the occurrence of hypocalcemia: sex, age, size of tumor, side of tumor, maximum diameter of individual lobe, occult metastasis, and operating surgeon. The study involved 340 patients who underwent surgery for PTC at the Department of ENT and Head and Neck Surgery, Zagreb University Hospital Centre, between February 25, 2013 and January 3, 2016. Postoperative hypocalcemia incidence rates were higher in the total thyroidectomy group than in the completion thyroidectomy group (37.8% and 29.0%, respectively). However, these differences were not statistically significant. Every analyzed potential predictive factor was proven not to have any correlation with postoperative hypocalcemia. This study demonstrated that there was no significant difference between postoperative hypocalcemia rates in patients who underwent completion thyroidectomy compared with patients who underwent total thyroidectomy for PTC.
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Affiliation(s)
| | - Valentino Potroško
- 1Department of Otorhinolaryngology - Head & Neck Surgery, Zagreb University Hospital Centre, Zagreb, Croatia; 2Koprivnica community health center, Koprivnica, Croatia; 3Faculty of agriculture, University of Zagreb, Department of Animal Science, Zagreb, Croatia
| | - Ozren Vugrinec
- 1Department of Otorhinolaryngology - Head & Neck Surgery, Zagreb University Hospital Centre, Zagreb, Croatia; 2Koprivnica community health center, Koprivnica, Croatia; 3Faculty of agriculture, University of Zagreb, Department of Animal Science, Zagreb, Croatia
| | - Maja Ferenčaković
- 1Department of Otorhinolaryngology - Head & Neck Surgery, Zagreb University Hospital Centre, Zagreb, Croatia; 2Koprivnica community health center, Koprivnica, Croatia; 3Faculty of agriculture, University of Zagreb, Department of Animal Science, Zagreb, Croatia
| | - Krešimir Gršić
- 1Department of Otorhinolaryngology - Head & Neck Surgery, Zagreb University Hospital Centre, Zagreb, Croatia; 2Koprivnica community health center, Koprivnica, Croatia; 3Faculty of agriculture, University of Zagreb, Department of Animal Science, Zagreb, Croatia
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Quimby AE, Corsten MJ, Grose E, Odell M, Johnson-Obaseki S. Quality Indicators of Central Compartment Neck Dissection in Thyroid Surgery. Otolaryngol Head Neck Surg 2020; 163:938-946. [PMID: 32453652 DOI: 10.1177/0194599820925757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Quality metrics are an increasingly important means of improving patient care. Variability in the number of lymph nodes removed during central compartment lymph node dissection (CCLND) at the time of thyroidectomy has not been studied. STUDY DESIGN A retrospective cohort study was performed using American College of Surgeons National Quality Improvement Program (ACS-NSQIP) data. SETTING Centers in North America and worldwide contributing data to ACS-NSQIP and performing thyroidectomy on adults in inpatient and outpatient settings were included. SUBJECTS AND METHODS Adult patients undergoing thyroidectomy with or without CCLND were included. Outcomes of interest were number of nodes removed during CCLND and risks of postoperative hypocalcemia. RESULTS In total, 6108 patients met inclusion criteria (1565 with CCLND). The median number of lymph nodes removed during CCLND was 2. There was no statistically significant association between postoperative hypocalcemia and CCNLD, regardless of number of nodes removed. However, we were underpowered to detect this association based on the overall low nodal yield of many CCLNDs performed. CONCLUSION In many cases where CCLND is documented as part of thyroidectomy, very few lymph nodes are removed. Our ability to draw conclusions regarding the effect of CCLND on postoperative hypocalcemia is restricted due to the limited nature of many CCLNDs performed.
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Affiliation(s)
- Alexandra E Quimby
- Department of Otolaryngology-Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada
| | - Martin J Corsten
- Division of Otolaryngology-Head and Neck Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Elysia Grose
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Michael Odell
- Department of Otolaryngology-Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada
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Althoubaity FK, Almusallam SA, Alghorair AS, AlQahtani FS, Khotani OM, Bamakhish NF, Alzriri AD. The prevalence of hypocalcemia following total thyroidectomy. A retrospective study based at King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Saudi Med J 2020; 41:431-434. [PMID: 32291432 PMCID: PMC7841603 DOI: 10.15537/smj.2020.4.25045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To estimate the prevalence of hypocalcemia following total thyroidectomy (TT) at a tertiary center. Methods: This retrospective study was conducted between 2014 and 2019 at King Abdulaziz University Hospital (KAUH), Jeddah, Saudi Arabia. The study was based at the Department of General Surgery and was approved by the Research Ethics Committee of KAUH. Medical records of 154 patients who had undergone TT were reviewed. Data such as age, gender, level of postoperative calcium at 24 and 48 hours after surgery, parathyroid hormone (PTH) levels, central neck dissection (CCND), histological diagnosis were entered into Microsoft Excel sheets. Results: Hypocalcemia occurred more on the second day after surgery in 67.4% of patients. Among them, 83.9% were female and 16.1% were male. The majority of patients were asymptomatic and benign thyroid disease was the most common. There was a significant association between hypocalcemia and the PTH level (p<0.001). Conclusion: There was a high prevalence of hypocalcemia on the second day after surgery. Presence of hypocalcemia association with the PTH level. Meticulous surgical technique and preservation of parathyroid vascularity are important in preventing postoperative hypocalcemia.
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Affiliation(s)
- Fatma K Althoubaity
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. E-mail.
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Priya SR, Dravid C. Central Compartment Nodal Bulk: A Predictor of Permanent Postoperative Hypocalcaemia. Indian J Surg Oncol 2020; 11:92-100. [PMID: 32205978 PMCID: PMC7064669 DOI: 10.1007/s13193-019-01010-8] [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: 05/13/2019] [Accepted: 11/06/2019] [Indexed: 10/25/2022] Open
Abstract
Central compartment clearance (CCC) for Papillary thyroid cancers (PTC) is one of the factors causing postoperative hypocalcaemia. We aimed to examine determinants of this major sequela. 41 patients treated for PTCs between 2014 and 2016 were studied. Surgical details, tumour and nodal characteristics, incidence of transient, temporary and permanent hypocalcaemia were noted. Central clearance was done bilaterally in 24 (58.5%) cases, ipsilaterally in 17 (41.6%). Central nodes were involved in 26 (63.4%) cases, unilaterally in 15 (36.6%), bilaterally in 11 (26.8%). Transient hypocalcaemia developed in 10 (24.4%) cases, temporary hypocalcaemia in 6 (14.6%) cases, and permanent hypocalcaemia in 2 (4.9%) cases. 17 (41%) patients were symptomatic. 9 (21.9%) patients received intravenous calcium. The only factor consistently associated with development of hypocalcaemia of all patterns, was the presence of matted central compartment nodes (p = 0.021). Matted nodes also related to a longer length of stay (p = 0.04) and requirement of intravenous calcium (p = 0.000). Extent of CCC, nodal yield, nodal positivity, perinodal extension, number of parathyroids identified, gender or pT size were not significantly associated. Symptomatic patients did not necessarily become permanently hypocalcaemic (p = 0.8). Patients requiring intravenous calcium were more likely to take oral calcium after discharge (p = 0.002). Postoperative hypocalcaemia is more likely in cases with bulky involved central nodes where extensive clearance is done. In routine CCC, even if done bilaterally, preservation of parathyroid function is possible. Permanent hypocalcaemia after CCC need not be taken as inevitable.
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Affiliation(s)
- S. R. Priya
- Head Neck Unit, Delhi State Cancer Institute, Delhi, India
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Ramachandran R, Prabhakaran A, Jacob P, Babu MC, Nair G. Complications following thyroidectomy for benign thyroid diseases and their correlation with clinical, anatomical, and biochemical parameters. FORMOSAN JOURNAL OF SURGERY 2020. [DOI: 10.4103/fjs.fjs_55_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Melikyan A, Menkov A. Postoperative Hypoparathyroidism: Prognosis, Prevention, and Treatment (Review). Sovrem Tekhnologii Med 2020; 12:101-108. [PMID: 34513060 PMCID: PMC8353683 DOI: 10.17691/stm2020.12.2.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 12/19/2022] Open
Abstract
This review summarizes the results of studies concerning the problem of post-surgical hypoparathyroidism, a common complication of thyroid gland surgery, decreasing the quality of life in patients and, in some cases, leading to disability. A search for publications was carried out in electronic databases Web of Science, Scopus, Academic Search Complete (EBSCO), eLIBRARY, using keywords. The search depth was 7-10 years. Prevalence of post-surgical hypoparathyroidism was evaluated, the pathogenetic causes of the disease development, its clinical forms, methods of diagnosis and treatment were studied. It has been found that there is no single algorithm for analyzing the prognostic factors for the development of this pathological condition. It is emphasized that drug therapy of post-surgical hypoparathyroidism has a number of adverse effects. Therefore, the issues of prevention and surgical correction are of particular relevance. However, controversial opinions of contemporary authors about their clinical effectiveness determine the scientific and practical significance of further research on these issues.
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Affiliation(s)
- A.A. Melikyan
- Surgeon, Nizhny Novgorod Regional Clinical Hospital named after N.A. Semashko, 190 Rodionova St., Nizhny Novgorod, 603126, Russia
| | - A.V. Menkov
- Professor, Department of General, Operative Surgery and Topographic Anatomy named after A.I. Kozhevnikov, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Square, Nizhny Novgorod, 603005, Russia
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Minuto MN, Reina S, Monti E, Ansaldo GL, Varaldo E. Morbidity following thyroid surgery: acceptable rates and how to manage complicated patients. J Endocrinol Invest 2019; 42:1291-1297. [PMID: 31124043 DOI: 10.1007/s40618-019-01064-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/14/2019] [Indexed: 12/01/2022]
Abstract
PURPOSE The endocrine surgeon and the endocrinologist should standardize how they deal with patients with an indication for thyroidectomy, as the road to surgery starts well before the operation itself. The patient should be thoroughly informed about where and how surgery will be performed, the postoperative improvements that can be expected, and the possibility and incidence of relevant complications. This short review aims at identifying the most common postoperative issues after thyroidectomy, with the relevant therapeutic suggestions. METHODS A revision of studies reporting the morbidity of thyroid surgery, involving the largest numbers of patients. RESULTS It has been clearly demonstrated that the outcome of thyroid surgery is significantly better when the procedure is performed by an experienced surgeon. Thus, the number of thyroidectomies performed by a surgeon should drive the endocrinologist when referring a patient. CONCLUSIONS Despite the surgeon's experience, thyroidectomy is burdened by a relatively high rate of postoperative issues ranging from less severe ones to others causing significant changes in the patient's quality of life. Minor, non-invalidating symptoms have been described in 40% of patients after thyroidectomy (e.g. hoarseness, mild dysphagia, some degree of voice alteration); however, these symptoms usually resolve within a few months of surgery, with or without early treatment. On the other hand, major postoperative complications are observed in a limited number of patients, but in these cases early diagnosis is important to provide the most appropriate postoperative treatment, and thus hasten full recovery or at least achieve the greatest possible improvement.
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Affiliation(s)
- M N Minuto
- Dipartimento di Scienze Chirurgiche (DISC), Università degli Studi di Genova, V.le Benedetto XV 6, 16132, Genoa, Italy.
- U.O. Chirurgia 1, Dipartimento di Chirurgia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - S Reina
- Dipartimento di Scienze Chirurgiche (DISC), Università degli Studi di Genova, V.le Benedetto XV 6, 16132, Genoa, Italy
- U.O. Chirurgia 1, Dipartimento di Chirurgia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - E Monti
- Dipartimento di Medicina Interna (DIMI), Università degli Studi di Genova, Genoa, Italy
| | - G L Ansaldo
- U.O. Chirurgia 1, Dipartimento di Chirurgia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - E Varaldo
- Dipartimento di Scienze Chirurgiche (DISC), Università degli Studi di Genova, V.le Benedetto XV 6, 16132, Genoa, Italy
- U.O. Chirurgia 1, Dipartimento di Chirurgia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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Hillary SL, Brown BH, Brown NJ, Balasubramanian SP. Use of Electrical Impedance Spectroscopy for Intraoperative Tissue Differentiation During Thyroid and Parathyroid Surgery. World J Surg 2019; 44:479-485. [PMID: 31511942 DOI: 10.1007/s00268-019-05169-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Electrical impedance (EI) measures tissue resistance to alternating current across several frequencies and may help identify tissue type. A recent rabbit model demonstrated that electrical impedance spectroscopy (EIS) may facilitate identification of parathyroid glands and potentially improve outcomes following surgery. This study looks at the EI patterns of soft tissues in the human neck to determine whether parathyroid tissue can be accurately identified. METHODS This was a phase 1, single-arm interventional study involving 56 patients undergoing thyroid and/or parathyroid surgery. Up to 12 EI readings were taken from in vivo and ex vivo thyroid and parathyroid glands, adipose tissue and muscle of each patient. Each reading consists of a series of measurements over 14 frequencies from each tissue. EI patterns were analysed. Two patients were excluded due to data loss due to device malfunction. RESULTS The median age of participants was 53.5 (range 20-85) years. Thirty-five participants had surgery for thyroid pathology, 17 for parathyroid pathology and four for both. Six hundred and six EIS spectra were reviewed for suitability. One hundred and eighty-four spectra were rejected leaving 422 spectra for analysis. The impedance patterns of the soft tissues differed by histological type. The EI ratio of low (152 Hz) to high (312 kHz) frequencies demonstrated a significant difference between the soft tissues (p = 0.006). Using appropriate thresholds, parathyroid tissue can be distinguished from thyroid tissue with a sensitivity of 76% and specificity of 60%. CONCLUSIONS This study demonstrates the feasibility of using EIS to aid parathyroid identification and preservation. Further changes to the device and modelling of the EI patterns across the range of frequencies may improve accuracy and facilitate intraoperative use. TRIAL REGISTRATION ClinicalTrials.gov (NCT02901873).
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Affiliation(s)
| | | | | | - Saba P Balasubramanian
- Sheffield Teaching Hospitals NHS Foundation Trust, University of Sheffield, Sheffield, UK
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Patel N, Scott-Coombes D. Impact of surgical volume and surgical outcome assessing registers on the quality of thyroid surgery. Best Pract Res Clin Endocrinol Metab 2019; 33:101317. [PMID: 31526606 DOI: 10.1016/j.beem.2019.101317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The available evidence concerning the relationship between volume and outcome for thyroid surgery is assessed in this article. Morbidity forms the principal surrogate marker of thyroid surgery quality for which postoperative hypocalcaemia and recurrent laryngeal nerve injuries are most commonly reported upon. Whilst there is an abundance of published data for these outcomes, interpretation to recommend annual volume thresholds is challenging. This is due to a lack of consensus on definitions not only for outcomes but high and low volume surgeons. The evidence reviewed in this article supports the notion that high volume surgeons achieve superior outcomes in thyroid surgery quality though it is not possible to recommend minimal annual volumes on the basis of this evidence alone. Every thyroid surgeon should know their own outcomes and how they compare with their peers and engagement in thyroid surgery registries can facilitate this.
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Affiliation(s)
- Neil Patel
- Department of Endocrine and General Surgery, University Hospital of Wales, Heath Park Way, Heath Park, Cardiff, CF14 4XW, UK
| | - David Scott-Coombes
- Department of Endocrine and General Surgery, University Hospital of Wales, Heath Park Way, Heath Park, Cardiff, CF14 4XW, UK.
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Baloch N, Taj S, Anwer M, Naseem M. Frequency of Hypocalcaemia following Total Thyroidectomy. Pak J Med Sci 2019; 35:262-265. [PMID: 30881435 PMCID: PMC6408675 DOI: 10.12669/pjms.35.1.93] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background & Objective Patients who undergo Total thyroidectomy are at higher risk for postoperative hypocalcaemia, which can lead to significant short and long term morbidity. The aim of this study was to determine the frequency of postoperative hypocalcaemia undergoing Total thyroidectomy. Methods A total of 854 patients who underwent Total thyroidectomy and completion thyroidectomy between January 2003 to December 2016 at Endocrine Surgical unit, Jinnah Postgraduate Medical Centre, Karachi, were included in this retrospective study. Data were obtained for demographics, preoperative diagnosis, postoperative calcium levels, extent of surgery and final surgical pathology. Results A total of 854 patients underwent Total thyroidectomy. Of these 87.58% (n=748) were malignant and 12.41% (n=106) were benign. Among the malignant and benign patients, 47.3% (n=404) underwent Total thyroidectomy and 52.69% (n=450) underwent completion thyroidectomy. Overall incidence of transient hypocalcaemia was 7% (n=60) and that of permanent hypocalcaemia was 0.11% (n= 1). Conclusion Hypocalcaemia is one of major concern following total- thyroidectomy. Meticulous surgical techniques, identification and preservation of vascularity of parathyroid glands are essential in preventing postoperative hypocalcaemia following total thyroidectomy.
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Affiliation(s)
- Naseem Baloch
- Dr. Naseem Baloch, FCPS. Department of Surgery, Jinnah Postgraduate Medical Centre, Karachi, Pakistan
| | - Saima Taj
- Dr. Saima Taj, FCPS, MRCS. Department of Surgery, Sindh Govt: Korangi Hospital, Karachi, Pakistan
| | - Mariyah Anwer
- Dr. Mariyah Anwer, FCPS. Department of Surgery, Jinnah Postgraduate Medical Centre, Karachi, Pakistan
| | - Masooma Naseem
- Dr. Masooma Naseem, MBBS Student, Ziauddin University, Karachi, Pakistan
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Preventive Effect of Dexamethasone Therapy on the Transient Hypoparathyroidism through Total Thyroidectomy. IRANIAN JOURNAL OF OTORHINOLARYNGOLOGY 2019; 31:73-80. [PMID: 30989072 PMCID: PMC6449529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
INTRODUCTION This study aimed to investigate whether pre-operative dexamethasone could ameliorate transient hypoparathyroidism outcome through total thyroidectomy. MATERIALS AND METHODS This randomized clinical trial study was conducted on 128 patients underwent total thyroidectomy from March 2014 to April 2015. Patients were randomly assigned to two groups of experimental receiving 8 mg IV of intravenous dexamethasone (n=45) 45 min before skin incision treatment and control (n=83). After the surgery, all patients were evaluated for clinical and laboratory hypocalcaemia. RESULTS Post-operative transient biochemical hypoparathyroidism and hypocalcaemia did not occur more often in the control group, compared to the dexamethasone group while controlling for the baseline variables. However, there was a significant difference in phosphorus level between the dexamethasone and control groups (P=0.028). A total of 50 (39.1%) patients developed hypocalcaemia after surgery. Moreover, post-operative symptomatic hypocalcemia occurred more frequently in the control group (68%) compared to the dexamethasone group (32%); however, this difference was not statistically significant (P=0.54). CONCLUSION The pre-operative administration of dexamethasone reduced post-operative hypocalcemia rate. It is essential to conduct future studies with validated means for better results.
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Abstract
Calcium is vital for life, and extracellular calcium concentrations must constantly be maintained within a precise concentration range. Low serum calcium (hypocalcemia) occurs in conjunction with multiple disorders and can be life-threatening if severe. Symptoms of acute hypocalcemia include neuromuscular irritability, tetany, and seizures, which are rapidly resolved with intravenous administration of calcium gluconate. However, disorders that lead to chronic hypocalcemia often have more subtle manifestations. Hypoparathyroidism, characterized by impaired secretion of parathyroid hormone (PTH), a key regulatory hormone for maintaining calcium homeostasis, is a classic cause of chronic hypocalcemia. Disorders that disrupt the metabolism of vitamin D can also lead to chronic hypocalcemia, as vitamin D is responsible for increasing the gut absorption of dietary calcium. Treatment and management options for chronic hypocalcemia vary depending on the underlying disorder. For example, in patients with hypoparathyroidism, calcium and vitamin D supplementation must be carefully titrated to avoid symptoms of hypocalcemia while keeping serum calcium in the low-normal range to minimize hypercalciuria, which can lead to renal dysfunction. Management of chronic hypocalcemia requires knowledge of the factors that influence the complex regulatory axes of calcium homeostasis in a given disorder. This chapter discusses common and rare disorders of hypocalcemia, symptoms and workup, and management options including replacement of PTH in hypoparathyroidism.
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Affiliation(s)
- Erin Bove-Fenderson
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Thier 1101, 50 Blossom St, Boston, MA, 02114, USA
| | - Michael Mannstadt
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Thier 1101, 50 Blossom St, Boston, MA, 02114, USA.
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Complication Risk in Secondary Thyroid Surgery. MEDICAL BULLETIN OF SISLI ETFAL HOSPITAL 2018; 52:19-25. [PMID: 32595366 PMCID: PMC7315072 DOI: 10.14744/semb.2017.87609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 02/26/2018] [Indexed: 11/20/2022]
Abstract
Objectives Secondary thyroid surgery is rare, compared with primary thyroid surgery. However, secondary surgery has a greater risk of complications due to the formation of scar tissue as well as increased fragility of the tissues following the previous surgery. Several surgical techniques and strategies have been recommended to decrease the complication rate associated with secondary surgery. The aim of this study was to evaluate the complication rate in patients who underwent secondary thyroid surgery using a lateral approach and intraoperative nerve monitoring (IONM). Methods The data of 44 patients who underwent secondary surgical intervention after thyroid surgery performed for benign or malignant thyroid disease (Group 1), and of 44 patients who underwent primary surgery (Group 2) were compared. Lobectomy patients with a histopathological result of malignant disease, whom were applied completion thyroidectomy were excluded from the study. Secondary surgery was performed using a lateral approach. Access was achieved between the anterior edge of the sternocleidomastoid muscle and the strap muscles. In primary surgery, the thyroid lodge was entered through the midline. Standard IONM was applied in all cases. Hypocalcemia was defined as a serum calcium level of ≤8 mg/dL within the first postoperative 48 hours, regardless of clinical symptoms. Transient and permanent recurrent laryngeal nerve paralysis was evaluated based on the number of nerves at risk. The lobectomy was considered to be high-risk with the presence of recurrence, Graves' disease, substernal goiter, and application of central dissection. Results The mean age of Group 1 and 2 was 49.9±14.1 years and 45±12.6 years , respectively (range: 22-90 years; p=0.69). Female patients constituted 90.9% (n=40) of the population in Group 1 and 75% (n=33) of the patient population in Group 2 (p=0.87). In Group 1, 11 (25%) patients, and 7 (15.9%) patients in Group 2 underwent surgical intervention due to the presence of a malignant disease (p=0.29). Bilateral intervention was applied in 26 (59.1%) patients in Group 1 and 28 (63.6%) patients in Group 2. The rate of transient and permanent hypocalcemia in Groups 1 and 2 was 34.1% (n=15) vs 22.5%, and 2.5% (n=1) vs 0%, respectively, without any significant intergroup difference (p=0.237, p=1). In Group 1, 71 lobes were operated on, and there were 72 in Group 2. All of the interventions in Group 1 (100%), and 31.9% (n=23) of those in Group 2 were high-risk, and there was a significant intergroup difference (p<0.0001). The rate of transient and permanent vocal cord paralysis were 4.2% (n=3) vs 2.8% (n=2) and 6.9 % (n=5) vs 0% in Groups 1 and 2, respectively (p=0.719; p=0.245). Conclusion When performed with a meticulous and attentive technique, secondary surgical intervention can be applied without increasing the incidence of permanent complications. Though there is substantial risk associated with all of these procedures, the rate of vocal cord paralysis was similar to that seen after primary intervention, and was thought to be related to surgical experience and technique, as well as the use of IONM.
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