Aim: To demonstrate the effectiveness, possible complications, and difference of Burr-hole craniostomy surgical technique applied to patients diagnosed with chronic subdural hematoma from other surgical techniques.
Material and Methods: The surgical techniques and postoperative clinical and radiological details of 36 patients who were operated on with the diagnosis of chronic subdural hematoma in the Neurosurgery Clinic of Ordu University Training and Research Hospital between 01.01.2013 and 15.08.2022 were retrospectively analyzed.
Twenty-eight (77.7%) of the cases were male and 8 (22.3%) were female. The mean age was 70, with an age range of 54-87. Ten of the cases had a GCS of 15 (28%), 20 had a GCS of 13-14 (56%), and 6 had a GCS of 8-12. The most prominent complaints of the patients were headache and confusion. While 22 patients (61.1%) had a history of head trauma, 14 patients (38.9%) had no history of trauma. There was a history of anticoagulant or antiaggregant drug use in 9 patients (25%).
In all patients in the post-op period, control brain CT was taken within the first 24 hours and compared with the pre-op CT. Again, at the end of post-op 1st, 2nd week and 1st month, control brain CT was taken for all patients and GCS was compared with pre-op scores. After determining the post-op complications, the treatment and results of these complications were examined.
Results: In all patients in the post-op period, control brain CT was taken within the first 24 hours and compared with the pre-op CT. Again, at the end of post-op 1st, 2nd week and 1st month, control brain CT was taken for all patients and GCS was compared with pre-op scores. Craniotomy + membranectomy was performed in 6 patients because of residual bleeding in the post-op period and no improvement in their neurological status. One of the patients who were operated on by craniotomy died due to sepsis in the later period. One patient who was operated on with Burr-Hole developed motor dysphasia in the post-op period, and intraparenchymal hemorrhage was detected in the post-op tomography of this patient. This patient's dysphasia resolved at the end of the post-op 1 month. Although pneumocephaly developed in the post-op period in 9 patients who underwent burr-hole craniostomy, they did not require surgical treatment and were observed to be spontaneously resorbed. In addition, wound site infection developed in the post-op period in 4 patients who underwent Burr-hole craniostmia. Appropriate antibiotic therapy was given to these patients. At the end of the first week, radiological examination of 18 patients with CT showed no residual hematoma or recurrent hematoma. The radiological improvement of 10 patients was completed at the end of the 1st month and the radiological recovery of 7 patients was completed at the end of the 3rd month. Post-op clinical and radiological results of patients who underwent burr-hole craniostomy were significantly better than pre-op clinical and radiological results, and the recurrence rate was low, consistent with the literature.
Conclusion: Although the drainage of chronic subdural hematoma with bur-hole craniostomy has a higher recurrence rate compared to the craniotomy method, it has a lower complication rate and is a more easily applicable surgical technique. In our study, some important points about patients who underwent burrhole craniostomy for cSDH evacuation were highlighted. It was observed that our patients who underwent burrhole craniostomy had higher reoperation rates compared to our patients who underwent craniotomy. We think that the presence of residual hematoma in the controls performed with CT in the post-op period should not be the sole criterion for re-operation. We think that CT controls are sufficient if there is improvement in the neurological status of the patient and a better GCS score in the post-op follow-up.