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Dehydration in cerebral venous sinus thrombosis
Jiayue Ding1, Duo Lan2, Xiaoming Zhang2
1Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China.
Insights
Patients with cerebral venous sinus thrombosis (CVST) often show higher urine specific gravity (USG), indicating dehydration. However, dehydration markers do not predict CVST severity or patient outcomes.
Area of Science:
- Neurology
- Nephrology
- Internal Medicine
Background:
- Cerebral venous sinus thrombosis (CVST) is a rare but serious condition.
- Understanding the role of dehydration in CVST is crucial for patient management.
Purpose of the Study:
- To investigate the dehydration status in patients diagnosed with CVST.
- To determine if dehydration markers can differentiate CVST from mimics and healthy individuals.
- To assess the association between dehydration and CVST severity or prognosis.
Main Methods:
- A multicenter retrospective study involving patients with CVST, CVST mimics, and healthy controls.
- Urine specific gravity (USG) was measured 1-2 days post-admission to assess hydration.
- Statistical analysis was performed using Stata 15.1.
Main Results:
- Higher USG levels were observed in CVST patients compared to CVST mimics (p < 0.001).
- The prevalence of USG > 1.03 was significantly higher in the CVST group (22.6%) than in mimics (6.3%, p < 0.001).
- Dehydration markers did not differentiate CVST from controls or predict disease severity and prognosis (p > 0.05).
Conclusions:
- Elevated USG, particularly > 1.013, is more prevalent in patients with CVST.
- Dehydration markers are not effective in characterizing CVST or predicting its severity and prognosis.
Aims:
This study aimed to unravel the dehydration status of patients with cerebral venous sinus thrombosis (CVST) to facilitate the understanding of dehydration in CVST.
Methods:
This was a multicenter retrospective study and three populations were recruited, namely, patients with CVST, CVST mimics, and healthy subjects. Blood samples were obtained 1-2 days after admission to assess dehydration status. Stata 15.1 was performed for statistical analysis.
Results:
A total of 208 patients were diagnosed with CVST, 237 with CVST mimics, and 200 healthy individuals were enrolled. The urine specific gravity (USG, 1.020 [1.014, 1.029] vs. 1.017 [1.011, 1.021]) was higher in patients with CVST than in those with mimics (all p < 0.001). The percentage of USG >1.03 was also higher in CVST (22.6%) than in its mimics (6.3%, p < 0.001). With the development of CVST, USG (acute vs. sub-acute vs. chronic, 1.022 [1.015, 1.033] vs. 1.021 [1.015, 1.031] vs. 1.019 [1.014, 1.025]) decreased. All dehydration-related markers could not differentiate CVST from its mimics and healthy populations, and they were not associated with CVST severity and prognosis (p > 0.05).
Conclusion:
High levels of USG, especially USG >1.013, were more common in patients with CVST. Dehydration-related indices could not characterize CVST and were not associated with CVST severity and prognosis.
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