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Nagel K, Hendricks A, Lenschow C, Meir M, Hahner S, Fassnacht M, Wiegering A, Germer CT, Schlegel N. Definition and diagnosis of postsurgical hypoparathyroidism after thyroid surgery: meta-analysis. BJS Open 2022; 6:6683841. [PMID: 36050906 PMCID: PMC9437325 DOI: 10.1093/bjsopen/zrac102] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/13/2022] [Indexed: 11/15/2022] Open
Abstract
Background Postsurgical hypoparathyroidism (PH) is the most frequent complication after thyroid surgery. The aim of this systematic review and meta-analysis is to summarize a unifying definition of PH and to elucidate the best possible approach for early detection of PH. Methods A systematic review of the literature according to the PICO framework using Embase, PUBMED and the Cochrane library was carried out on 1 December 2021 followed by analysis for risk of bias, data extraction and meta-analysis. All studies addressing the definition of postoperative hypoparathyroidism and/or diagnostic approaches for early detection and diagnosis were included. Case reports, commentaries, non-English articles, book chapters and pilot studies and reviews were excluded. Results From 13 704 articles, 188 articles were eligible for inclusion and further analysis. These articles provided heterogeneous definitions of PH. Meta-analysis revealed that postoperative measurements of parathormone (PTH) levels have a higher sensitivity and specificity than intraoperative PTH measurements to predict PH after thyroid surgery. None of the timeframes analysed after surgery within the first postoperative day (POD1) was superior to predict the onset of PH. PTH levels of less than 15 pg/ml and less than 10 pg/ml are both reliable threshold levels to predict the postoperative onset of PH. A relative reduction of mean(s.d.) PTH levels from pre- to postoperative values of 73 (standard deviation 11) per cent may also be predictive for the development of PH. The estimation of calcium levels on POD1 are recommended. Conclusion PH is best defined as an undetectable or inappropriately low postoperative PTH level in the context of hypocalcaemia with or without hypocalcaemic symptoms. PTH levels should be measured after surgery within 24 h. Both threshold levels below 10 and 15 pg/ml or relative loss of PTH before/after thyroid surgery are reliable to predict the onset of PH.
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Affiliation(s)
- Kathrin Nagel
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Anne Hendricks
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Christina Lenschow
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Michael Meir
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Stefanie Hahner
- Department of Internal Medicine, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg , Würzburg , Germany
| | - Martin Fassnacht
- Department of Internal Medicine, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg , Würzburg , Germany
| | - Armin Wiegering
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Christoph-Thomas Germer
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
| | - Nicolas Schlegel
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg , Würzburg , Germany
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Stefanou SK, Koulas S, Stefanou CK, Tepelenis K, Paxinos AK, Tsiantis T, Galani V, Vlachos K. Tissue dissection with saline injection: application in thyroid surgery. J Surg Case Rep 2021; 2021:rjab500. [PMID: 34909164 PMCID: PMC8666156 DOI: 10.1093/jscr/rjab500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 10/19/2021] [Indexed: 11/25/2022] Open
Abstract
Postoperative hypoparathyroidism is a thyroidectomy complication. The effect of this complication cannot be accurately quantified. The incidence of hypoparathyroidism after total thyroidectomy has high variability in the literature, between 7 and 37%. Data from 78 patients who underwent total thyroidectomy with Tissue Dissection with Solution Injection (TDSI group) from December 2018 to August 2019 were retrospectively reviewed. These patients were compared with 78 patients to whom the technique was not applied (non-TDSI group), and they were treated from January 2018 to September 2018. All thyroidectomies were performed by the same surgeon. The mean duration of a thyroidectomy was 1 hour. The reduction of the incidence of postoperative hypoparathyroidism in the group of patients was applied in respect of the technique of tissue dissection with saline injection. TDSI technique paves the way for further application to other tissues and surgeries.
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Affiliation(s)
| | - Spyros Koulas
- Department of Surgery, General Hospital “G. Hatzikosta,” Ioannina, Greece
| | - Christos K Stefanou
- Correspondence address. Department of Surgery, General Hospital of Filiates, Ioannina 46300, Greece. Tel: +306942071910; E-mail:
| | - Kostas Tepelenis
- Department of Surgery, University Hospital of Ioannina, Ioannina, Greece
| | | | - Thomas Tsiantis
- Department of Gynecology, University Hospital of Ioannina, Ioannina, Greece
| | - Vasiliki Galani
- Department of Anatomy-Histology-Embryology, Medical School, University of Ioannina, Ioannina, Greece
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Kim JK, Choi SH, Choi SM, Choi HR, Lee CR, Kang SW, Jeong JJ, Nam KH, Chung WY. Single-port transaxillary robotic thyroidectomy (START): 200-cases with two-step retraction method. Surg Endosc 2021; 36:2688-2696. [PMID: 34741206 PMCID: PMC8921151 DOI: 10.1007/s00464-021-08837-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 10/19/2021] [Indexed: 12/03/2022]
Abstract
Background This study aims to report the results of a pioneering clinical study using the single-port transaxillary robotic thyroidectomy (START) for 200 patients with thyroid tumor and to introduce our novel two-step retraction method. Methods START was performed on consecutive 200 patients using the da Vinci Single-Port (SP) robot system from January 2019 to September 2020 at the Yonsei University Health System, Seoul, Korea. The novel two-step retraction technique, in which a 3.5 cm long incision is made along the natural skin crease, was used for the latter 164 patients. The surgical outcome and invasiveness of the SP two-step retraction method were analyzed. Results Among the 200 cases who underwent START, 198 were female and 2 were male, with a mean age of 34.7 (range: 13–58 years). Thyroid lobectomy was performed for 177 patients and total thyroidectomy was performed for 23 patients. Ten patients had benign thyroid nodules, whereas the other 190 had thyroid malignancy. The mean body mass index (BMI) was 22.2 ± 3.7 kg/m2 (range: 15.9–37.0 kg/m2). All of the operations were performed successfully without any open conversions, and patients were discharged on postoperative day 3 or 4 without significant complication. The mean operative time for thyroid lobectomy with the two-step retraction method was 116.69 ± 23.23 min, which was similar to that in the conventional robotic skin flap method (115.33 ± 17.29 min). We could minimize the extent of the robotic skin flap dissection with the two-step retraction method. Conclusions START is a practical surgical method. By employing the new two-step retraction method, we can maximize the cosmetic and functional benefits for patients and reduce the workload fatigue of surgeons by increasing robotic dependency. Supplementary Information The online version contains supplementary material available at 10.1007/s00464-021-08837-9.
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Affiliation(s)
- Jin Kyong Kim
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Sun Hyung Choi
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Soon Min Choi
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Hye Ryeon Choi
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Cho Rok Lee
- Department of Surgery, Yongin Severance Hospital, Gyeonggi-do, Korea
| | - Sang-Wook Kang
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jong Ju Jeong
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Kee-Hyun Nam
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
| | - Woong Youn Chung
- Department of Surgery, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
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Kim MJ, Nam KH, Lee SG, Choi JB, Kim TH, Lee CR, Lee J, Kang SW, Jeong JJ, Chung WY. Yonsei Experience of 5000 Gasless Transaxillary Robotic Thyroidectomies. World J Surg 2018; 42:393-401. [PMID: 28879559 DOI: 10.1007/s00268-017-4209-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Since the use of robot systems in thyroid surgery was introduced in 2007, we have advanced a novel method of robotic thyroidectomy (RT) using a gasless transaxillary approach (TAA). We report our experience with this technique and detail the surgical outcome of 5000 robotic thyroidectomies. METHODS From October 2007 to May 2016, we successfully performed 5000 robotic thyroidectomies using a gasless TAA at the Department of Surgery, Yonsei University Health System. The medical records of the patients are reviewed retrospectively, and the details of clinicopathologic characteristics, operation times, perioperative complications, and oncologic outcomes are analyzed. RESULTS The 5000 patients with thyroid tumor (4804 with cancer and 196 with benign tumor) underwent RT using a gasless TAA. Mean operation time was 134.5 ± 122.0 min. The most common histologic subtype of thyroid cancer was papillary (98%), and the mean tumor size was 8.0 ± 6.0 mm. Stage I was found in 85.4% patients regarding tumor nodes metastasis staging. The 196 benign tumors consisted of 104 adenomatous hyperplasias (53.0%), 43 follicular adenomas (21.9%), 30 Graves' diseases (15.3%), and 19 others (9.7%). Postoperative complication occurred in 24.1% without any serious one, and overall morbidity tended to decrease over time. No disease-specific mortality was observed during the follow-up period. Locoregional recurrence was developed in 26 patients (0.5%). CONCLUSION The authors have tried to improve RT technique using gasless TAA and achieved acceptable surgical outcomes. The rapid evolution of surgical robot technology and our constant effort to advance RT technique using gasless TAA would make it possible to reduce the perioperative morbidity and gain the best possible operative and oncologic outcomes.
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Affiliation(s)
- Min Jhi Kim
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Kee-Hyun Nam
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Seul Gi Lee
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jung Bum Choi
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Tae Hyung Kim
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Cho Rok Lee
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jandee Lee
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Sang-Wook Kang
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jong Ju Jeong
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Woong Youn Chung
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
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Kim MJ, Lee J, Lee SG, Choi JB, Kim TH, Ban EJ, Lee CR, Kang SW, Jeong JJ, Nam KH, Jo YS, Chung WY. Transaxillary robotic modified radical neck dissection: a 5-year assessment of operative and oncologic outcomes. Surg Endosc 2016; 31:1599-1606. [PMID: 27572060 DOI: 10.1007/s00464-016-5146-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 07/20/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Robotic modified radical neck dissection (MRND) using a gasless transaxillary approach has been reported to be a safe and meticulous technique in patients with papillary thyroid carcinoma (PTC) and lateral neck node metastasis (N1b). Few studies, however, have attempted to assess the long-term oncologic outcomes of robotic MRND in these patients. This study aimed to compare perioperative and 5-year oncologic outcomes of robotic MRND with conventional open procedures in patients with N1b PTC. METHODS Between September 2007 and February 2010, 193 patients with N1b PTC underwent total thyroidectomy and MRND by a single surgeon. Of these, 42 (21.8 %) underwent robotic procedures and 151 (78.2 %) underwent conventional open procedures. All patients received 3.7- to 5.5-GBq radioactive iodine (RAI) ablation, post-therapy whole-body scans (TxWBSs), and diagnostic WBS (DxWBSs) during follow-up. An exact 1:3 matching for age and stage was performed to minimize selection bias, and perioperative and 5-year oncologic outcomes were compared in the matched groups. RESULTS The mean follow-up period was 66.0 months (range 60-90 months). Number of retrieved cervical lymph nodes (LNs) (p = .102) and postoperative ablation success rates (p = .864) were similar between the two groups. TSH-suppressed serum Tg concentrations after 5 years (0.7 ± 1.5 vs. 2.4 ± 14.1 ng/ml; p = .471) and recurrence rates in the robotic and open groups (1/41 [2.4 %] vs. 3/102 [2.9 %]; p = .864) were similar for the 5-year follow-up period. Four patients experienced recurrence: Three exhibited regional lymph node metastasis, and one showed bilateral lung metastases. CONCLUSION The perioperative and 5-year oncologic outcomes were similar after robotic and conventional open MRND. Large, prospective randomized controlled trials with long-term follow-up data are needed to validate these results.
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Affiliation(s)
- Min Jhi Kim
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Jandee Lee
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Seul Gi Lee
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Bum Choi
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Hyung Kim
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Jeong Ban
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Cho Rok Lee
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Wook Kang
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Ju Jeong
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Kee-Hyun Nam
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Young Suk Jo
- Department of Internal Medicine, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Woong Youn Chung
- Department of Surgery, Open NBI Convergence Technology Research Laboratory, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
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Ritter K, Elfenbein D, Schneider DF, Chen H, Sippel RS. Hypoparathyroidism after total thyroidectomy: incidence and resolution. J Surg Res 2015; 197:348-53. [PMID: 25982044 DOI: 10.1016/j.jss.2015.04.059] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 03/26/2015] [Accepted: 04/15/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Parathyroid hormone (PTH) levels are often measured after thyroid surgery and are used to detect patients at risk for postoperative hypoparathyroidism. However, there is a lack of consensus in the literature about how to define the recovery of parathyroid gland function and when to classify hypoparathyroidism as permanent. The goals of this study were to determine the incidence of low postoperative PTH in total thyroidectomy patients and to monitor their time course to recovery of parathyroid gland function. METHODS We identified 1054 consecutive patients who underwent a total or completion thyroidectomy from January, 2006-December, 2013. Low PTH was defined as a PTH measurement <10 pg/mL immediately after surgery. Patients were considered to be permanently hypoparathyroid if they had not recovered within 1 y. Recovery of parathyroid gland function was defined as PTH ≥10 pg/mL and no need for therapeutic calcium or activated vitamin D (calcitriol) supplementation to prevent hypocalcemic symptoms. RESULTS Of 1054 total thyroidectomy patients, 189 (18%) had a postoperative PTH <10 pg/mL. Of those 189 patients, 132 (70%) showed resolution within 2 mo of surgery. Notably, 9 (5%) resolved between 6 and 12 mo. At 1 y, 20 (1.9%) were considered to have permanent hypoparathyroidism. Surprisingly, 50% of those patients had recovery of PTH levels yet still required supplementation to avoid symptoms. CONCLUSIONS Most patients with a low postoperative PTH recover function quickly, but it can take up to 1 y for full resolution. Hypoparathyroidism needs to be defined not only by PTH levels but also by medication requirements.
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Affiliation(s)
- Kathryn Ritter
- Section of Endocrine Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Dawn Elfenbein
- Section of Endocrine Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - David F Schneider
- Section of Endocrine Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Herbert Chen
- Section of Endocrine Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Rebecca S Sippel
- Section of Endocrine Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
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