Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review
Objective: This report aims to present a rare case of severe hyponatremia induced by syndrome of inappropriate antidiuretic hormone secretion (SIADH) following chemotherapy in a patient with small cell carcinoma of the cervix (SCCC). It also reviews the existing literature on this rare phenomenon. C...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Gynecologic Oncology Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352578925000293 |
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| author | Isabelle Lauzon Lara deGuerké Suzanne Fortin Marie-Hélène Auclair Sabrina Piedimonte |
| author_facet | Isabelle Lauzon Lara deGuerké Suzanne Fortin Marie-Hélène Auclair Sabrina Piedimonte |
| author_sort | Isabelle Lauzon |
| collection | DOAJ |
| description | Objective: This report aims to present a rare case of severe hyponatremia induced by syndrome of inappropriate antidiuretic hormone secretion (SIADH) following chemotherapy in a patient with small cell carcinoma of the cervix (SCCC). It also reviews the existing literature on this rare phenomenon. Case: A 45-year-old female with SCCC developed acute symptomatic hyponatremia (sodium level 110 mmol/L) three days following cisplatin-based chemotherapy. SIADH was diagnosed, and the patient required intubation and admission to the intensive care unit due to severe agitation and confusion. Despite initial correction of sodium levels, the patient developed recurrent hyponatremia after subsequent chemotherapy cycles that was refractive to first line agents. She required the use of Tolvaptan, a vasopressin type 2 receptor antagonist, for the management of hyponatremia. Conclusions: This case highlights the rare occurrence of severe SIADH in a patient with SCCC, underscoring the complexity of managing electrolyte disturbances in the context of both paraneoplastic syndromes and chemotherapeutic side effect. The severity of our patient’s presentation calls attention to the importance of early recognition of SIADH in the differential diagnosis of oncology patients with altered mental status and confusion. Post chemotherapy sodium surveillance could lead to improved patient outcomes, as well as monitoring for signs and symptoms of hyponatremia. |
| format | Article |
| id | doaj-art-aa0def83f2da439aad2f13bba3d2fc1e |
| institution | OA Journals |
| issn | 2352-5789 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Gynecologic Oncology Reports |
| spelling | doaj-art-aa0def83f2da439aad2f13bba3d2fc1e2025-08-20T02:13:07ZengElsevierGynecologic Oncology Reports2352-57892025-04-015810170410.1016/j.gore.2025.101704Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature reviewIsabelle Lauzon0Lara deGuerké1Suzanne Fortin2Marie-Hélène Auclair3Sabrina Piedimonte4Department of Medicine, University of Montreal, Montreal H3T 1J4, CanadaDivision of Gynecologic Oncology, Maisonneuve-Rosemont Hospital, CIUSSSEMTL, Montreal H1T 2M4, CanadaDivision of Gynecologic Oncology, Maisonneuve-Rosemont Hospital, CIUSSSEMTL, Montreal H1T 2M4, CanadaDivision of Gynecologic Oncology, Maisonneuve-Rosemont Hospital, CIUSSSEMTL, Montreal H1T 2M4, CanadaDivision of Gynecologic Oncology, Maisonneuve-Rosemont Hospital, CIUSSSEMTL, Montreal H1T 2M4, Canada; Corresponding author at: Division of Gynecologic Oncology, Maisonneuve-Rosemont Hospital, CIUSSSEMTL, Montreal H1T 2M4, Canada.Objective: This report aims to present a rare case of severe hyponatremia induced by syndrome of inappropriate antidiuretic hormone secretion (SIADH) following chemotherapy in a patient with small cell carcinoma of the cervix (SCCC). It also reviews the existing literature on this rare phenomenon. Case: A 45-year-old female with SCCC developed acute symptomatic hyponatremia (sodium level 110 mmol/L) three days following cisplatin-based chemotherapy. SIADH was diagnosed, and the patient required intubation and admission to the intensive care unit due to severe agitation and confusion. Despite initial correction of sodium levels, the patient developed recurrent hyponatremia after subsequent chemotherapy cycles that was refractive to first line agents. She required the use of Tolvaptan, a vasopressin type 2 receptor antagonist, for the management of hyponatremia. Conclusions: This case highlights the rare occurrence of severe SIADH in a patient with SCCC, underscoring the complexity of managing electrolyte disturbances in the context of both paraneoplastic syndromes and chemotherapeutic side effect. The severity of our patient’s presentation calls attention to the importance of early recognition of SIADH in the differential diagnosis of oncology patients with altered mental status and confusion. Post chemotherapy sodium surveillance could lead to improved patient outcomes, as well as monitoring for signs and symptoms of hyponatremia.http://www.sciencedirect.com/science/article/pii/S2352578925000293Cervical cancerSIADHHyponatremia |
| spellingShingle | Isabelle Lauzon Lara deGuerké Suzanne Fortin Marie-Hélène Auclair Sabrina Piedimonte Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review Gynecologic Oncology Reports Cervical cancer SIADH Hyponatremia |
| title | Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review |
| title_full | Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review |
| title_fullStr | Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review |
| title_full_unstemmed | Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review |
| title_short | Small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy: A case report and literature review |
| title_sort | small cell carcinoma of the cervix with syndrome of inappropriate antidiuretic hormone secretion following chemotherapy a case report and literature review |
| topic | Cervical cancer SIADH Hyponatremia |
| url | http://www.sciencedirect.com/science/article/pii/S2352578925000293 |
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