Constantinos Thoma, Tara Lee Charlton, Karoly M. David, G. Prezerakos
{"title":"Surgical options in thoracic disc herniation: Evaluating long-term outcomes of 21 cases based on a single-center 10-year experience","authors":"Constantinos Thoma, Tara Lee Charlton, Karoly M. David, G. Prezerakos","doi":"10.25259/sni_7_2024","DOIUrl":"https://doi.org/10.25259/sni_7_2024","url":null,"abstract":"\u0000\u0000Symptomatic thoracic disc herniation (TDH) is a rare pathology that is addressed with relatively challenging surgical approaches, the choice and technical execution of which have been well described in the literature. Interestingly, long-term outcomes, including surgical site pain-related disability, the need for instrumentation, and commonly occurring complications such as cerebrospinal fluid (CSF)-pleural fistula have not been widely addressed. Here, we address the complication profiles and long-term outcomes of different surgical approaches for TDH.\u0000\u0000\u0000\u0000We conducted a retrospective review of 21 consecutive patients who underwent surgery for TDH between 2000 and 2010. We assessed post-operative complications such as CSF-pleural fistulas, as well as long-term outcomes using Frankel grades, the EQ-5D-3L, and the Visual Analog Scale. We also looked at the need for instrumentation postoperatively.\u0000\u0000\u0000\u000021 consecutive patients (13 females, 8 males) with a mean age of 55.3 years (Standard deviation 8.1) underwent thoracic discectomy for symptomatic TDH. Surgical approaches included posterolateral thoracotomy (52%, n = 11), costotransversectomy (43%, n = 9), and transpedicular (5%, n = 1). Herniations were classified as soft (38%, n = 8), calcified (38%, n = 8), or calcified-transdural (24%, n = 5). Postoperatively, all patients with calcifiedtransdural herniations undergoing posterolateral thoracotomy (100%, n = 5) developed CSF-pleural fistulas, which resolved spontaneously without the need for surgical re-exploration. 89% (n = 16) of patients exhibited sustained improvement in Frankel scores. Persistent wound site pain was reported by 50% (n = 7) of patients.\u0000\u0000\u0000\u0000Despite favorable neurological outcomes, patients with symptomatic TDHs can experience long-term surgical site pain, and therefore, a move toward minimally invasive exposure in such cases should be considered. Postoperative complications such as CSF-pleural fistulas are unlikely to require surgical intervention and thus can be managed conservatively.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140963109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Pablo Martinez, A. Lovaglio, G. Masi, Jorge Mandolesi, Pablo Zancolli, Mariano Socolovsky
{"title":"Thoracodorsal to long thoracic nerve transfer in a patient with traumatic injury: A case report","authors":"Juan Pablo Martinez, A. Lovaglio, G. Masi, Jorge Mandolesi, Pablo Zancolli, Mariano Socolovsky","doi":"10.25259/sni_91_2024","DOIUrl":"https://doi.org/10.25259/sni_91_2024","url":null,"abstract":"\u0000\u0000Traumatic injury to the long thoracic nerve causes paralysis of the serratus muscle, clinically expressed as winged scapula and functional impairment of the shoulder girdle. Treatment varies according to the severity of the injury, with a focus on early intervention for best results; however, the therapeutic approach remains a challenge at present.\u0000\u0000\u0000\u0000We present the case of a 32-year-old male patient, athlete, right-handed, presented with bilateral paresis predominantly in the right arm, associated with paresthesia and changes in the coloring of the upper limbs. After being diagnosed with Thoracic Outlet Syndrome and undergoing surgery, vascular symptoms persisted with a significant loss of strength in the right shoulder. Winged scapula was observed and structural lesions were excluded on magnetic resonance imaging. Electromyographic studies confirmed the presumption of traumatic nerve involvement of the long thoracic nerve. Notwithstanding 6 months of physical therapy, there was no improvement, so a nerve transfer from the thoracodorsal nerve to the right long thoracic nerve was chosen. At 12 months, complete resolution of the winged scapula and functional recovery were observed. The patient also experienced a decrease in preoperative pain from 5/10 to 2/10 on the visual analog scale.\u0000\u0000\u0000\u0000Nerve transfer from the thoracodorsal nerve to the long thoracic nerve is a safe and effective technique to treat winged scapula due to long thoracic nerve injury.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"3 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140963366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbdelSalam Nedal Al-Sousi, Maria C. Whelan, Zahra Khalaf
{"title":"Evaluating intraoperative ultrasound (IOUS) in focal cortical dysplasia (FCD) resection surgery: A systematic review","authors":"AbdelSalam Nedal Al-Sousi, Maria C. Whelan, Zahra Khalaf","doi":"10.25259/sni_109_2024","DOIUrl":"https://doi.org/10.25259/sni_109_2024","url":null,"abstract":"\u0000\u0000Surgery is the best approach to treating focal cortical dysplasia (FCD)-related epilepsy; yet, it has suboptimal outcomes because distinguishing the boundaries between the FCD region and normal brain tissue intraoperatively poses a challenge. The use of intraoperative ultrasound (IOUS) helps demarcate FCD lesion borders leading to more accurate intraoperative resection. In this review, the use of IOUS for the resection of FCD was evaluated.\u0000\u0000\u0000\u0000This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The Medline, Embase, Cochrane Library, Scopus Library, and Dynamed Library databases were searched, and two independent reviewers examined the articles. The search terms related to “drug-resistant epilepsy” and “intraoperative ultrasound.” The results between January 2008 and April 2022 were abridged for FCD type, ultrasound resolution, extent of lesion resection, correction of brain shift, postoperative neurological deficits, and postoperative seizure freedom (Engel classification).\u0000\u0000\u0000\u0000Ten articles were included in the study. The parameters used to assess the efficacy of IOUS in FCD surgery were ultrasound resolution, demarcation of lesion boundaries, correction of brain shift, postoperative neurological deficits, and seizure freedom. Most studies have shown that IOUS produces high-resolution images. Surgery for Type 2 FCD patients had better outcomes than surgery for Type 1 FCD patients due to better visualization by IOUS. Patients were classified as Engel class 1 or class 2 postoperatively. Eight studies found that IOUS was superior to magnetic resonance imaging in brain shift correction.\u0000\u0000\u0000\u0000The preliminary results look promising, especially for the international league against epilepsy class 2 FCD. However, there is a need for more high-quality research evaluating the use of IOUS in FCD and comparing it to other intraoperative imaging modalities.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"50 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140965683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
João Antonio Gonçalves Bastos Torres, Pedro Henrique Costa Ferreira-Pinto, Domênica Baroni Coelho de Oliveira Ferreira, E. L. Simões, Felipe Gonçalves de Carvalho, A. Brito, José Alberto Almeida Filho, Bruna Cavalcante de Sousa, Maria Eduarda Viveiros de Castro, Pedro Luiz Ribeiro Carvalho de Gouvea, Wellerson Novaes da Silva, Eduardo Mendes Correa, Thainá Zanon Cruz, F. Nigri
{"title":"Endolymphatic sac tumor: An urgent case presenting acute intracranial hypertension successfully treated with suboccipital decompressive craniectomy – 8 years of follow-up","authors":"João Antonio Gonçalves Bastos Torres, Pedro Henrique Costa Ferreira-Pinto, Domênica Baroni Coelho de Oliveira Ferreira, E. L. Simões, Felipe Gonçalves de Carvalho, A. Brito, José Alberto Almeida Filho, Bruna Cavalcante de Sousa, Maria Eduarda Viveiros de Castro, Pedro Luiz Ribeiro Carvalho de Gouvea, Wellerson Novaes da Silva, Eduardo Mendes Correa, Thainá Zanon Cruz, F. Nigri","doi":"10.25259/sni_34_2024","DOIUrl":"https://doi.org/10.25259/sni_34_2024","url":null,"abstract":"\u0000\u0000Endolymphatic sac tumor (ELST) is a rare lesion. It may be sporadically or associated with Von Hippel-Lindau syndrome. Progressive audiovestibular symptoms characterize the typical clinical presentation. Here, we report a unique case of ELST with acute intracranial hypertension (IH) due to tumor compression, successfully treated with an urgent suboccipital decompressive craniectomy (SDC).\u0000\u0000\u0000\u0000A 33-year-old woman previously underwent a biopsy and ventriculoperitoneal shunt. The histopathological finding revealed an ELST. One year later, she developed headache, vomiting, and somnolence due to brainstem compression. An urgent SDC was performed. One month later, preoperative endovascular embolization and partial tumor resection were carried out. After 6 months adjuvant radiotherapy (RT) therapy was administered. She has been under follow-up for 8 years since the last surgical procedure, and the tumor remains stable.\u0000\u0000\u0000\u0000ELST generally has a progressive clinical course. This is a unique case with acute IH due to tumor compression. The tumor’s high vascularity and the unavailability of endovascular embolization precluded its resection. SDC was an alternative approach. The final treatment included tumor embolization, surgical resection, and RT. No progression was observed for 8 years after the last procedure, and long-term follow-up is warranted.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140965182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chronic subdural hematoma needs to be named differently","authors":"Zanib Javed, Minaam Abid, S. Shamim","doi":"10.25259/sni_178_2024","DOIUrl":"https://doi.org/10.25259/sni_178_2024","url":null,"abstract":"","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"1 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140962028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brandon Sharkey, K. Conner, Cade R. McGarvey, Ajay Nair, Abbigail Dorn, Kevin Reinard, Brandon Gabel
{"title":"Pediatric central nervous system (CNS) neuroblastoma: A case report","authors":"Brandon Sharkey, K. Conner, Cade R. McGarvey, Ajay Nair, Abbigail Dorn, Kevin Reinard, Brandon Gabel","doi":"10.25259/sni_794_2023","DOIUrl":"https://doi.org/10.25259/sni_794_2023","url":null,"abstract":"\u0000\u0000Neuroblastomas are rare tumors activated by the FoxR2 gene commonly found in pediatric patients. Due to the novelty of these tumors, there is no standard diagnostic profile. However, they have been found to express Olig2, MAP2, SOX10, ANKRD55, and synaptophysin, and they can be identified with magnetic resonance imaging (MRI). Treatment with chemotherapy combined with stem cell rescue and craniospinal irradiation can improve non-infant patient outcomes.\u0000\u0000\u0000\u0000We report a case of a 2-year-old patient who was diagnosed with a neuroblastoma through MRI imaging and pathology that confirmed FoxR2 gene activation. The tumor was successfully removed. However, the tumor was not high-grade like most FoxR2 neuroblastomas.\u0000\u0000\u0000\u0000The unusual presentation of a low-grade FoxR2 neuroblastoma demonstrates the necessity to conduct further research into the characteristics of these tumors.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140962668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Satoshi Kuroda, Shusuke Yamamoto, E. Hori, D. Kashiwazaki, K. Noguchi
{"title":"Intraoperative monitoring of cerebrospinal fluid gas tension and pH before and after surgical revascularization for moyamoya disease","authors":"Satoshi Kuroda, Shusuke Yamamoto, E. Hori, D. Kashiwazaki, K. Noguchi","doi":"10.25259/sni_281_2024","DOIUrl":"https://doi.org/10.25259/sni_281_2024","url":null,"abstract":"\u0000\u0000This study aimed to directly measure cerebrospinal fluid (CSF) gas tensions and pH before and after superficial temporal artery to middle cerebral artery (STA-MCA) anastomosis for moyamoya disease.\u0000\u0000\u0000\u0000This study included 25 patients with moyamoya disease who underwent STA-MCA anastomosis combined with indirect bypass onto their 34 hemispheres. About 1 mL of CSF was collected before and after bypass procedures to measure CSF partial pressure of oxygen (PCSFO2), CSF partial pressure of carbon dioxide (PCSFCO2), and CSF pH with a blood gas analyzer. As the controls, the CSF was collected from 6 patients during surgery for an unruptured cerebral aneurysm. PCSFO2 and PCSFCO2 were expressed as the ratio to partial pressure of oxygen (PaO2) and partial pressure of carbon dioxide (PaCO2), respectively.\u0000\u0000\u0000\u0000PCSFO2/PaO2 was 0.79 ± 0.14 in moyamoya disease, being lower than 1.10 ± 0.09 in the controls (P < 0.0001). PCSFCO2/PaCO2 was 0.90 ± 0.10 in moyamoya disease, being higher than 0.84 ± 0.07 in the controls (P = 0.0261). PCSFO2/PaO2 was significantly lower in pediatric patients than in adult patients and in the hemispheres with reduced cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) to acetazolamide than in those with normal CBF but reduced CVR. STA-MCA anastomosis significantly increased PCSFO2/PaO2 from 0.79 ± 0.14 to 0.86 ± 0.14 (P < 0.01) and reduced PCSFCO2/PaCO2 from 0.90 ± 0.10 to 0.69 ± 0.16 (P < 0.0001). There was no difference in CSF pH between moyamoya disease and the controls.\u0000\u0000\u0000\u0000PCSFO2/PaO2 was significantly lower in moyamoya disease than in the controls. Its magnitude was more pronounced in pediatric patients than in adult patients and depends on the severity of cerebral ischemia. STA-MCA anastomosis carries dramatic effects on CSF gas tensions in moyamoya patients. CSF may be a valuable biomarker to monitor the pathophysiology of cerebral ischemia/hypoxia in moyamoya disease.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":" 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140994102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Sohail, Mohammad Hamza Bajwa, Qurat-Ul-Ain Virani, Anam Tariq, Nasr Hussain, S. Shamim
{"title":"Is endoscopic third ventriculostomy a viable treatment option for normal pressure hydrocephalus? A systematic review","authors":"A. Sohail, Mohammad Hamza Bajwa, Qurat-Ul-Ain Virani, Anam Tariq, Nasr Hussain, S. Shamim","doi":"10.25259/sni_127_2024","DOIUrl":"https://doi.org/10.25259/sni_127_2024","url":null,"abstract":"\u0000\u0000Endoscopic third ventriculostomy (ETV) is considered an alternative treatment for hydrocephalus and has become a standard of care for obstructive hydrocephalus. Recent studies have also explored its role in normal pressure hydrocephalus (NPH). We conducted a systematic review aiming to assess the outcomes of this minimally invasive endoscopic technique as a viable treatment option for NPH.\u0000\u0000\u0000\u0000A systematic literature search was performed using PubMed and Scopus databases, using iterations of search terms “Endoscopic third ventriculostomy,” “Idiopathic normal pressure hydrocephalus,” and “Normal pressure hydrocephalus.” To be eligible for inclusion in the review, articles had to report the usage of ETV as a primary treatment modality for NPH, report its outcomes, and be published in the English language.\u0000\u0000\u0000\u0000Out of the 13 studies selected for qualitative synthesis, nine supported the use of ETV for NPH as an effective treatment option with improvement in the preoperative symptoms. Two studies favored shunt over ETV, stating that quality of life is better with VP shunt insertion. One study reported that ETV has higher perioperative mortality rates that outweigh its benefits. One study reported it to be an ineffective surgical option.\u0000\u0000\u0000\u0000The current review of evidence does not support the use of ETV for the treatment of NPH, except perhaps in a small subset of patients. These patients have a shorter duration of symptoms and a better preoperative neurological status. The lumbar infusion test and ventricular infusion test are modalities useful for selecting these candidates.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":" 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdulrahman Albakr, Amir Baghdadi, Brij S. Karmur, S. Lama, Garnette R. Sutherland
{"title":"Meningioma recurrence: Time for an online prediction tool?","authors":"Abdulrahman Albakr, Amir Baghdadi, Brij S. Karmur, S. Lama, Garnette R. Sutherland","doi":"10.25259/sni_43_2024","DOIUrl":"https://doi.org/10.25259/sni_43_2024","url":null,"abstract":"\u0000\u0000Meningioma, the most common brain tumor, traditionally considered benign, has a relatively high risk of recurrence over a patient’s lifespan. In addition, with the emergence of several clinical, radiological, and molecular variables, it is becoming evident that existing grading criteria, including Simpson’s and World Health Organization classification, may not be sufficient or accurate. As web-based tools for widespread accessibility and usage become commonplace, such as those for gene identification or other cancers, it is timely for meningioma care to take advantage of evolving new markers to help advance patient care.\u0000\u0000\u0000\u0000A scoping review of the meningioma literature was undertaken using the MEDLINE and Embase databases. We reviewed original studies and review articles from September 2022 to December 2023 that provided the most updated information on the demographic, clinical, radiographic, histopathological, molecular genetics, and management of meningiomas in the adult population.\u0000\u0000\u0000\u0000Our scoping review reveals a large body of meningioma literature that has evaluated the determinants for recurrence and aggressive tumor biology, including older age, female sex, genetic abnormalities such as telomerase reverse transcriptase promoter mutation, CDKN2A deletion, subtotal resection, and higher grade. Despite a large body of evidence on meningiomas, however, we noted a lack of tools to aid the clinician in decision-making. We identified the need for an online, self-updating, and machine-learning-based dynamic model that can incorporate demographic, clinical, radiographic, histopathological, and genetic variables to predict the recurrence risk of meningiomas.\u0000\u0000\u0000\u0000Although a challenging endeavor, a recurrence prediction tool for meningioma would provide critical information for the meningioma patient and the clinician making decisions on long-term surveillance and management of meningiomas.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":" 75","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140991211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David J. Caldwell, Justin K. Scheer, Gray Umbach, Manish K. Aghi
{"title":"Acute hyponatremia post craniotomy resulting in a unilateral fixed and dilated pupil: A case study on diagnosis and management","authors":"David J. Caldwell, Justin K. Scheer, Gray Umbach, Manish K. Aghi","doi":"10.25259/sni_105_2024","DOIUrl":"https://doi.org/10.25259/sni_105_2024","url":null,"abstract":"\u0000\u0000Postoperative hyponatremia is a known complication of intracranial surgery, which can present with depressed mental status. Hyponatremia resulting in focal neurologic deficits is less frequently described.\u0000\u0000\u0000\u0000We describe a patient who, after a bifrontal craniotomy for olfactory groove meningioma, developed acute hyponatremia overnight with a decline in mental status from Glasgow coma scale (GCS) score 15 to GCS 7 and a unilateral fixed dilated pupil. Head computed tomography showed expected postoperative changes without new acute or localizing findings, such as unilateral uncal herniation. The patient’s mental status and pupil immediately improved with the administration of mannitol; however, there was a subsequent decline in mental status with a preserved pupil later that morning. Hypertonic saline reversed the neurologic change, and the patient was eventually discharged without a neurologic deficit. Focal neurologic deficits need not always arise following a craniotomy from a postoperative hematoma, stroke, or other finding with radiographic correlate.\u0000\u0000\u0000\u0000Post-craniotomy hyponatremia should now be seen as a postoperative complication that can result in both a general neurologic decline in mental status, as well as with focal neurologic signs such as a fixed, dilated pupil, which can be reversed with hyperosmolar therapy and correction of the hyponatremia.\u0000","PeriodicalId":504441,"journal":{"name":"Surgical Neurology International","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}