Water and sodium disorders in children undergoing surgical treatment of brain tumors
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Paravee Hiranrat1, Pisut Katavetin, Vichit Supornsilchai
1Endocrine unit, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand.
Insights
Water and sodium disorders like diabetes insipidus (DI) and SIADH are common in children with brain tumors, often appearing within 24 hours post-surgery. Tumor location influences the type of disorder, with sellar/suprasellar tumors linked to DI and hemisphere/posterior fossa tumors to SIADH.
Area of Science:
- Pediatric neurosurgery
- Endocrinology
- Oncology
Background:
- Children with brain tumors frequently experience water and sodium balance issues, including diabetes insipidus (DI), SIADH, and CSW.
- Limited data exists on the incidence, timing, and clinical course of these disorders in pediatric brain tumor patients.
Purpose of the Study:
- To characterize the incidence, onset, and clinical course of water and sodium disorders in children undergoing surgical treatment for brain tumors.
Main Methods:
- Retrospective review of medical records for pediatric brain tumor patients who underwent surgery.
- Study period: January 1997 to December 2002.
- Location: King Chulalongkorn Memorial Hospital.
Main Results:
- Water and sodium disorders occurred in 45.57% of 79 patients.
- Diabetes insipidus (DI) affected 23 patients, SIADH 12, and CSW 1.
- Tumor location correlated with disorder type: sellar/suprasellar tumors with DI (75.86%), cerebral hemisphere tumors with SIADH (44.44%).
- Post-operative DI onset averaged 9.68 hours, with SIADH typically developing within 24 hours.
Conclusions:
- DI and SIADH are frequent complications in pediatric brain tumor patients post-surgery.
- Onset of these disorders typically occurs within 24 hours after surgical intervention.
- Specific tumor locations predict the likelihood of DI (sellar/suprasellar) or SIADH (cerebral hemispheres, posterior fossa).
Background:
Many children with brain tumors have abnormalities in water and sodium homeostasis, such as diabetes insipidus (DI), the syndrome of inappropriate antidiuretic hormone secretion (SIADH) and cerebral salt wasting syndrome (CSW), either pre-operatively or post-operatively. But little data have been published on the incidence, time of onset and clinical course of water and sodium disorders in children with brain tumors.
Objectives:
To characterize the water and sodium disorders in children undergoing surgical treatment for brain tumors.
Patients And Method:
The medical records of children with brain tumors admitted for surgery at King Chulalongkorn Memorial Hospital from January 1997 to December 2002 were retrospectively reviewed.
Results:
There were 79 patients, 46 males and 33 females included in this study. Water and sodium disorders occurred in 36 patients (45.57%), 23 patients had DI, 12 patients had SIADH and 1 patient had cerebral salt wasting syndrome (CSW). Nine of the 36 patients had pre-operative onset of water and sodium disorders (8 DI and 1 SIADH). The development of DI and SIADH was associated with the location of the brain tumors. Patients with sellar and suprasellar tumors had the highest incidence of DI (75.86%). Patients with tumors of the cerebral hemispheres had the highest incidence of SIADH (44.44%). Onset of post-operative DI ranged from 2 to 19 hours (mean 9.68 hours) and most patients developed SIADH within 24 hours post-operatively.
Conclusions:
DI and SIADH are common problems in children with brain tumors, especially after surgical treatment and the onset usually occurs within 24 hours after surgery. Patients with sellar and suprasellar tumors are more likely to have DI, patients with tumors of cerebral hemispheres and posterior fossa tumors are more likely to have SIADH.
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