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In neurosurgery, brain tumor patients show increased levels of lactate at the beginning of surgery. This has been related to malignancy. Ki-67 is a cell proliferation index used as a marker of tumor mitotic activity.
This research aims to describe the correlation between lactate levels and the Ki-67 index in patients with brain tumor.
Lactate levels are used in the evaluation of perfusion status in critical care. Increases not related to a hypoperfusion state are observed in the patient with brain tumors. These increases have been related to type and tumor grade. This observation does not fully explain the variation within the same tumor grade.
Ki-67 label index is a marker of mitotic activity that can be used as proliferation index. It has been associated with histologic grade and survival rate. Provides a quantitative measure of the tumor proliferation status.
The investigators will perform a retrospective analysis of the clinical charts of patients after brain tumor resection. The study will address the relationship between baseline lactate levels and the proliferation index found in tissues biopsies.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Lactate and Ki 67 levels | Neurosurgical patients between June 2017 and February 2018 for tumoral and non-tumoral craniectomy with lactate levels at the beginning of surgery and Ki-67 index in biopsies. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Data correlation | Other | Correlation between lactate levels and Ki-67 index |
|
| Measure | Description | Time Frame |
|---|---|---|
| Evaluate the correlation between Lactate levels and Ki-67 Index | Levels of lactate in first blood analysis after anesthesia induction and proliferation index in biopsy results | Within 1 week after data acquisition |
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Inclusion Criteria:
Exclusion Criteria:
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Craniectomy cases for tumoral and non-tumoral surgery with lactate levels and biopsy information.
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| Name | Affiliation | Role |
|---|---|---|
| Ricard Valero, Dr. | Hospital Clinic of Barcelona | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Anesthesia department, Hospital ClĂnic de Barcelona | Barcelona | 08036 | Spain |
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| ID | Term |
|---|---|
| D001932 | Brain Neoplasms |
| ID | Term |
|---|---|
| D016543 | Central Nervous System Neoplasms |
| D009423 | Nervous System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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| D001927 |
| Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |