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Vöö S, Mercadante V, Riaz S, Algodayan S, Scott C, Priftakis D, Shephard M, Bomanji J. Molecular radionuclide therapy-induced salivary gland toxicity: an unappreciated threat to patients' quality of life? Nucl Med Commun 2024; 45:547-549. [PMID: 38586985 DOI: 10.1097/mnm.0000000000001839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Affiliation(s)
- Stefan Vöö
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
| | | | - Saima Riaz
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
| | - Sarah Algodayan
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
| | - Catherine Scott
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
| | - Dimitris Priftakis
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
| | | | - Jamshed Bomanji
- Institute of Nuclear Medicine, Molecular Radionuclide Therapy Unit, University College London Hospital, University College London Hospitals NHS Foundation Trust (UCLH)
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Li X, Yang J, Qu LY, Zheng DN, Xie XY, Liu DG, Yu GY. Diagnosis and Treatment of Radioactive Iodine-Induced Sialadenitis: A 10-Year Endoscopic Experience. Laryngoscope 2024. [PMID: 38761158 DOI: 10.1002/lary.31514] [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: 01/14/2024] [Revised: 04/02/2024] [Accepted: 05/06/2024] [Indexed: 05/20/2024]
Abstract
OBJECTIVES The aim of this study was to explore the endoscopic characteristics of radioactive iodine-induced sialadenitis (RAIS), and to evaluate the treatment outcomes of endoscopic intervention for RAIS. STUDY DESIGN Retrospective case series. METHODS Eighty-two consecutive patients (11 males and 71 females) diagnosed as RAIS from Nov. 2012 to Sep. 2023 were retrospectively included. All patients underwent endoscopic exploration and intervention of the affected glands. The endoscopic features were collected, and treatment outcomes were followed-up and evaluated through post to pre-operative comparisons of gland status. RESULTS Overall, endoscopic procedures were undertaken for 162 parotid glands (PGs) and 62 submandibular glands (SMGs). Endoscopy showed severe lumen stricture (49.3%) and ductal atresia (23.5%) in PGs, as well as severe stenosis of the anterior duct and ectasia of the proximal duct (59.7%) in SMGs. During a median six months' follow-up, the treatment outcomes of PGs were evaluated as "improvement" in 23.4%,"lesion maintenance" in 45.1% and "lesion aggravation" in 31.5% of the glands. As for SMGs, the treatment outcomes were scored as "improvement"in 29.0%,"lesion maintenance"in 54.8%, and"lesion aggravation"in 16.1% of the glands. No significant differences of treatment outcomes were found relative to RAI treatment sessions and cumulative dosage. CONCLUSION RAIS is characteristic of severe lumen stricture and ductal atresia in PGs, and stenosis of the distal duct and ectasia of the proximal duct in SMGs. Endoscopy can alleviate clinical symptoms of RAIS and help to preserve the gland function. LEVEL OF EVIDENCE 4 Laryngoscope, 2024.
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Affiliation(s)
- Xiao Li
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Jing Yang
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Liu-Yang Qu
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Dan-Ni Zheng
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Xiao-Yan Xie
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Deng-Gao Liu
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Guang-Yan Yu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
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Koch M, Müller S, Mantsopoulos K, Iro H, Sievert M. Ultrasound and Sialendoscopy Findings in Radioactive Iodine-Induced Sialadenitis: Comparative Analysis and Possible Impact on Management. J Clin Med 2024; 13:657. [PMID: 38337349 PMCID: PMC10856269 DOI: 10.3390/jcm13030657] [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: 12/26/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND To assess the correlation/association between ultrasound and sialendoscopy findings in radioactive iodine therapy-induced sialadenitis (RAIS). METHODS Patients presenting with RAIS were investigated with ultrasound and sialendoscopy. Four pathologic ultrasound parameters and seven pathologic sialendoscopy parameters were retrospectively assessed. Correlations/associations between ultrasound and sialendoscopy findings and associations between the changes between the first and last ultrasound and sialendoscopy findings were assessed separately for the parotid (PG) and submandibular glands (SMG). RESULTS Sixty-seven patients were included. In the first examination, 107 glands were investigated (PGs 88.8%, SMGs 11.21%), and in the last examination, 64 glands were investigated (90.6% PGs, 9.4% SMGs). Highly significant positive associations were observed between the severity or category of ultrasound and sialendoscopy findings for first and last examinations for PGs (both p = 0.0001) and SMGs (p = 0.002; p = 0.037). Duct dilation had a significant negative association with the sialendoscopy findings for PGs in the first and last examinations (both p = 0.0001), but not for SMGs. Comparison of changes in the ultrasound and sialendoscopy findings between the first and last examinations showed a significant positive association for PGs (p = 0.0001) but not for SMGs. CONCLUSIONS Ultrasound and sialendoscopy findings for the parenchyma and duct system in RAIS showed significant associations/correlations and can be useful for effective management in RAIS.
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Affiliation(s)
- Michael Koch
- Department of Otorhinolaryngology and Head and Neck Surgery, University of Erlangen–Nuremberg, 91054 Erlangen, Germany; (S.M.); (K.M.); (H.I.); (M.S.)
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Capaccio P, Gaffuri M, Canzi P, Pignataro L. Recurrent obstructive salivary disease after sialendoscopy. A narrative literature review. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2023; 43:S95-S102. [PMID: 37698106 PMCID: PMC10159639 DOI: 10.14639/0392-100x-suppl.1-43-2023-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/12/2023] [Indexed: 09/13/2023]
Abstract
Over the last 20 years, interventional sialendoscopy has become the therapy of choice for the management of obstructive salivary disorders, favouring a significant reduction in the number of patients undergoing traditional sialadenectomy. The overall success rate of sialendoscopy is around 90% as reported by the largest case series published; recurrence is expected in about 10% of cases, and the patient should be informed about the possibility to undergo further conservative procedures to improve symptoms. Adequate pre-operative assessment, based on ultrasonography, cone beam 3D CT and MR-sialography, is mandatory to reduce the risk of unsuccessful procedures and, therefore, recurrence of obstructive sialadenitis; moreover, in case of recurrence, the surgeon should be experienced enough to manage these cases and be able to perform additional interventions, such as transoral/transfacial sialendoscopy-assisted procedures and imaging-assisted procedures in case of difficult anatomical situations. Botulinum toxin injection and traditional sialadenectomy would be considered as possible salvage treatments in case of failure of all conservative approaches.
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Affiliation(s)
- Pasquale Capaccio
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
| | - Michele Gaffuri
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Pietro Canzi
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Department of Otorhinolaryngology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Lorenzo Pignataro
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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Douglas JE, Wen CZ, Thomas WW, Elrakhawy M, Rassekh CH. Management of Chronic Sialadenitis due to Sjogren's Syndrome and Radioactive Iodine Therapy Using Sialendoscopy. ORL J Otorhinolaryngol Relat Spec 2023; 85:7-11. [PMID: 35817018 DOI: 10.1159/000525217] [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: 11/24/2021] [Accepted: 04/10/2022] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Sialendoscopy is a minimally invasive technique for the management of salivary gland disease. This work characterizes its utility for treating chronic sialadenitis due to Sjogren's syndrome and radioactive iodine (RAI) therapy. METHODS A single-center, retrospective review of patients undergoing sialendoscopy between March 2013 and May 2019 for the treatment of chronic sialadenitis due to Sjogren's or prior RAI therapy was performed. RESULTS Thirty-four patients with Sjogren's and 25 patients who received RAI were identified, undergoing a total of 86 procedures. Median age at presentation was 53 years with mean follow-up time of 14.3 months. Seventy-two procedures were performed on the parotid gland, four on the submandibular gland, and ten on both glands. Corticosteroid injection and duct dilation were performed most commonly. Sixteen patients required repeat procedure. All patients were symptomatically improved at follow-up visit. DISCUSSION/CONCLUSION These results support the idea that sialendoscopy offers symptomatic benefit for patients with chronic sialadenitis due to Sjogren's or RAI.
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Affiliation(s)
- Jennifer E Douglas
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Christopher Z Wen
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA,
| | | | - Mohamed Elrakhawy
- Department of Otolaryngology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Christopher H Rassekh
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
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Assessment of salivary gland function after 177Lu-PSMA radioligand therapy: Current concepts in imaging and management. Transl Oncol 2022; 21:101445. [PMID: 35523007 PMCID: PMC9079342 DOI: 10.1016/j.tranon.2022.101445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/11/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022] Open
Abstract
The United States food and drug administration has recently granted approval to the targeted 177Lu-PSMA-617 therapy in prostate cancer patients. Salivary glands show high PSMA-ligand uptake and are prone to radiation damage secondary to accumulation of 177Lu-PSMA-617. Salivary gland scintigraphy is a noninvasive highly reproducible technique, useful for objective and quantitative assessment of salivary flow and function of parotid and submandibular glands and can help detect early changes post 177Lu-PSMA-617 therapy.
Prostate specific membrane antigen (PSMA) is a transmembrane protein that is highly expressed on prostate epithelial cells and is strongly upregulated in prostate cancer. Radioligand therapy using beta-emitting Lutetium-177 (177Lu)-labeled-PSMA-617, a radiolabeled small molecule, has gained attention as a novel targeted therapy for metastatic prostate cancer, given its high affinity and long tumor retention, and rapid blood pool clearance. In March 2022, the United States Food and Drug administration has granted approval to the targeted 177Lu-PSMA-617 therapy for treatment of patients with PSMA-positive metastatic castration resistant prostate cancer, who have been previously treated with an androgen-receptor pathway inhibitor and taxane-based chemotherapy. Studies have demonstrated the adverse effects of this treatment, mainly encountered due to radiation exposure to non-target tissues. Salivary glands show high PSMA-ligand uptake and receive increased radiation dose secondary to accumulation of 177Lu-PSMA-617. This predisposes the glands to radiation-mediated toxicity. The exact mechanism, scope and severity of radiation-mediated salivary gland toxicity are not well understood, however, the strategies for its prevention and treatment are under evaluation. This review will focus on the current knowledge about salivary gland impairment post 177Lu labeled PSMA-based radioligand therapies, diagnostic methodologies, and imaging with emphasis on salivary gland scintigraphy. The preventive strategies and known treatment options would also be briefly highlighted.
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Adramerinas M, Andreadis D, Vahtsevanos K, Poulopoulos A, Pazaitou-Panayiotou K. Sialadenitis as a complication of radioiodine therapy in patients with thyroid cancer: where do we stand? Hormones (Athens) 2021; 20:669-678. [PMID: 34143403 DOI: 10.1007/s42000-021-00304-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/31/2021] [Indexed: 01/08/2023]
Abstract
PURPOSE This study aims to elaborate on the current knowledge concerning the mechanism, frequency, clinical manifestations, diagnostic procedures, prevention, and management of radioactive iodine (RAI)-induced sialadenitis in patients receiving treatment for differentiated thyroid cancer (DTC). METHODS A review of the literature was carried out through the " www.ncbi.nlm.nih.gov/pubmed " database focusing on the results of the past decade. RESULTS The high concentration of RAI in the salivary glands results in high beta radiation exposure of the striated duct cells and stem cells. This exposure leads to acute and/or chronic sialadenitis with obstructive symptoms and progressive loss of salivary gland function and xerostomia, with severe impact on patients' quality of life. No standard diagnostic method has been established. As far as prevention is concerned, many approaches have been proposed, such as sialogogues, local massage, vitamin E, and amifostine administration. Although there is no unanimity as to their effectiveness, the use of sialogogues is recommended. Treatment includes conservative drug therapy and sialendoscopy when necessary. CONCLUSION RAI-induced sialadenitis has a major impact on patients' quality of life. Due to the good prognosis of DTC, the reduction of sialadenitis and its prognosis, prevention, and treatment constitute a priority for the overall treatment of these patients. Further studies that will establish a coherent treatment protocol for this condition are necessary.
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Affiliation(s)
| | - Dimitrios Andreadis
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Konstantinos Vahtsevanos
- Department of Oral/Maxillofacial Surgery, "G. Papanikolaou" Hospital of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Poulopoulos
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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The Side Effects of Therapeutic Radioiodine-131 on the Structure of Enamel and Dentin in Permanent Human Teeth. BIOLOGY 2021; 10:biology10040284. [PMID: 33915827 PMCID: PMC8065707 DOI: 10.3390/biology10040284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/26/2021] [Accepted: 03/30/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Our research suggest radioiodine-131 used for differentiated thyroid carcinomas has an impact on the oral health of patients. We found that alteration of dental hard tissues starts after 6 h post-radioiodine administration. These findings highlight the importance of the multidisciplinary team management in the quality of life of the oncological patient. Abstract Radioiodine-131 (I-131) is an essential therapy for patients with differentiated thyroid carcinomas (DTC). Generally, I-131 is safe and well tolerated, but patients may present early or late complications in the oral and maxillofacial areas. Thus, the aim of this study was to evaluate in-vitro, the alteration of enamel and dentin after I-131 exposure using histopathological assessment, scanning electron microscopy (SEM) and atomic force microscopy (AFM). For I-131 irradiation, an in-vitro protocol was used that simulates the procedure for irradiation therapy performed for patients with DTCs. A total of 42 teeth were divided into seven groups (n = 6) and irradiated as follows: control, irradiation groups (3, 6, 12, 36, 48 h, 8 days). Histological changes were observed at 48 h (enamel surface with multifocal and irregular areas) and at 8 days (enamel surface with multiple, very deep, delimited cavities). SEM imaging revealed the enamel destruction progresses along with the treatment time increasing. The alterations are extended into the enamel depth and the dislocated hydroxyapatite debris is overwhelming. The enamel-dentine interface shows small gaps after 6 h and a very well developed valley after 12 h; the interface microstructure resulted after 8 days is deeply altered. The AFM imaging shows that I-131 affects the protein bond between hydroxyapatite nano-crystals causing loss of cohesion, which leads to significant increasing of nano-particles diameter after 6 h. In conclusion, both enamel and dentin appear to be altered between 12 and 48 h and after 8 days of treatment are extended in depth.
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Harris JE, Lai SY, Chang JL. Metabolic, Radiation, and Medication Induced Sialadenitis. CURRENT OTORHINOLARYNGOLOGY REPORTS 2020. [DOI: 10.1007/s40136-020-00311-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Canzi P, Capaccio P, Marconi S, Conte G, Preda L, Avato I, Aprile F, Gaffuri M, Occhini A, Pignataro L, Auricchio F, Benazzo M. Feasibility of 3D printed salivary duct models for sialendoscopic skills training: preliminary report. Eur Arch Otorhinolaryngol 2019; 277:909-915. [DOI: 10.1007/s00405-019-05763-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/07/2019] [Indexed: 10/25/2022]
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Zeng Q, Mandel L. Radioactive Iodine-Induced Hyposalivation: Case Report. J Oral Maxillofac Surg 2019; 77:1837-1840. [PMID: 31028734 DOI: 10.1016/j.joms.2019.03.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 01/19/2023]
Abstract
Radioactive iodine (131I) is used in the treatment of differentiated thyroid cancers. Collateral damage to the salivary glands (SGs) can be anticipated. Standard therapeutic doses of 131I often cause SG obstructive symptomatology and hyposalivation can develop with the higher 131I doses used for aggressive thyroid malignancies with or without metastases.
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Affiliation(s)
- Qingcong Zeng
- Research Assistant, Salivary Gland Center; Third-Year Student, Columbia University College of Dental Medicine, Salivary Gland Center, Columbia University College of Dental Medicine, New York, NY
| | - Louis Mandel
- Director, Salivary Gland Center; Associate Dean; Clinical Professor, Oral and Maxillofacial Surgery, Columbia University College of Dental Medicine, Salivary Gland Center, Columbia University College of Dental Medicine, New York, NY.
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Initial clinical experience performing sialendoscopy for salivary gland protection in patients undergoing 225Ac-PSMA-617 RLT. Eur J Nucl Med Mol Imaging 2018; 46:139-147. [PMID: 30151743 DOI: 10.1007/s00259-018-4135-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/13/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE The main side effect of prostate-specific membrane antigen targeting alpha therapy (PSMA TAT) is dry mouth syndrome. Inflammation of the salivary glands and consequent reduced salivary function have been reported in patients after radioiodine therapy. The beneficial effects of sialendoscopy on radiation-induced inflammation in tissue are well known. Thus sialendoscopy with dilatation, saline irrigation and steroid injections (prednisolone) was performed before and after 225Ac-PSMA-617 TAT to reduce inflammatory effects in the salivary glands and to improve or prevent xerostomia. METHODS Eleven men with metastatic castration-resistant prostate cancer (mean age 68.5 years, range 58-80 years) underwent sialendoscopy, dilatation, saline irrigation and steroid injection of both submandibular and both parotid glands before or after every cycle of 225Ac-PSMA-617 TAT. Sialendoscopy and steroid injection were performed by a senior ENT physician. Quality of life was evaluated using two health-related quality of life (HRQOL) questionnaires, the Xerostomia Questionnaire (XQ) and the Xerostomia Inventory (XI) before and 3 months after the intervention. RESULTS In all 11 patients both parotid and both submandibular glands were affected by radiation sialadenitis and sialendoscopy was performed. The patients experienced no complications after sialendoscopy, and showed a significant improvement in HRQOL as measured using the XQ and XI. After sialendoscopy the XQ score decreased significantly from 77.7 ± 13.6 to 42.7 ± 14.8 (p = 0.003) and the XI score decreased from 44.5 ± 6.9 to 25.8 ± 12.8 (p = 0.003). Due to the limited number of patients we only report tendencies. CONCLUSION Sialendoscopy with dilatation, saline irrigation and steroid injection had beneficial effects on salivary gland function and HRQOL in patients undergoing 225Ac-PSMA-617 RLT. However, even with sialadenoscopic support after multiple cycles of TAT, salivary gland function was reduced and xerostomia was present. Therefore, not only inflammation but also the direct effect of radiation is a putative cause of dry mouth. Further research is necessary to determine the main side effects of PSMA TAT.
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Langbein T, Chaussé G, Baum RP. Salivary Gland Toxicity of PSMA Radioligand Therapy: Relevance and Preventive Strategies. J Nucl Med 2018; 59:1172-1173. [PMID: 29903929 DOI: 10.2967/jnumed.118.214379] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/07/2018] [Indexed: 11/16/2022] Open
Affiliation(s)
- Thomas Langbein
- Theranostics Center for Molecular Radiotherapy and Molecular Imaging, Zentralklinik, Bad Berka, Germany; and
| | - Guillaume Chaussé
- Division of Nuclear Medicine, Department of Radiology, McGill University, Montreal, Canada
| | - Richard P Baum
- Theranostics Center for Molecular Radiotherapy and Molecular Imaging, Zentralklinik, Bad Berka, Germany; and
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