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PloS One 2019This study is to identify the risk factors for postoperative delirium (PODE) in patients undergoing microvascular decompression (MVD) for the treatment of primary... (Clinical Trial)
Clinical Trial
This study is to identify the risk factors for postoperative delirium (PODE) in patients undergoing microvascular decompression (MVD) for the treatment of primary cranial nerve disorders. We retrospectively reviewed the data of 912 patients (354 men, 558 women) with primary cranial nerve disorders (trigeminal neuralgia, 602 patients; hemifacial spasm, 296 patients; glossopharyngeal neuralgia, 14 patients) who underwent MVD in the Neurosurgery Department of Lanzhou University Second Hospital between July 2007 and June 2018. Potential risk factors for PODE were identified using univariate and multivariate stepwise logistic regression analysis.Of the 912 patients, 221 (24.2%) patients developed PODE. Patients with PODE were significantly older and significantly more likely to be male than patients without PODE. A history of hypertension, preoperative carbamazepine therapy, and postoperative sleep disturbance and tension pneumocephalus were independently associated with PODE. Variables such as body-mass index, smoking and drinking habits, cardiac disease, diabetes mellitus, cerebrovascular disease, mean operative time, affected vessel, mean blood loss, postoperative intensive care unit stay, postoperative fever (>38°C), and routine laboratory results were not associated with PODE in our patients.PODE is a common complication after MVD, and is associated with multiple risk factors, including old age, male sex, hypertension, preoperative carbamazepine use, postoperative sleep disturbance, and tension pneumocephalus.
Topics: Age Factors; Aged; Delirium; Female; Hemifacial Spasm; Humans; Male; Microvascular Decompression Surgery; Middle Aged; Postoperative Complications; Retrospective Studies; Risk Factors; Sex Factors; Trigeminal Neuralgia
PubMed: 30998697
DOI: 10.1371/journal.pone.0215374 -
World Journal of Otorhinolaryngology -... Mar 2022Patients with obstructive sleep apnea (OSA) are at increased risk of perioperative and postoperative morbidity. The use of continuous positive airway pressure (CPAP) in... (Review)
Review
OBJECTIVES
Patients with obstructive sleep apnea (OSA) are at increased risk of perioperative and postoperative morbidity. The use of continuous positive airway pressure (CPAP) in the perioperative period may be of potential benefit. However, among patients who have undergone endonasal skull base surgery, many surgeons avoid prompt re-initiation of CPAP therapy due to the theoretical increased risk of epistaxis, excessive dryness, pneumocephalus, repair migration, intracranial introduction of bacteria, and cerebrospinal fluid (CSF) leak. The objective of this article is to review the most up-to-date literature regarding when it is safe to resume CPAP usage in the patient undergoing endonasal skull base surgery.
DATA SOURCES AND METHODS
This review combines the most recent literature as queried through PubMed regarding the safety of CPAP resumption following endonasal skull base surgery.
RESULTS
Recent surveys of skull base surgeons demonstrate little consensus regarding the post-operative management of OSA. Recent cadaveric studies suggest that approximately 85% of delivered CPAP pressures are transmitted to the sphenoid sinus. Further, at frequently prescribed CPAP pressure settings, common sellar reconstruction techniques maintain their integrity while preventing very little transmission of pressure into the sella. In small retrospective case series, patients with OSA who received CPAP immediately following transsphenoidal pituitary surgery had similar rates of surgical complications as OSA patients who did not receive CPAP in the immediate post-operative period. Concerns of re-initiating CPAP too early, such as the development of pneumocephalus, rarely develop.
CONCLUSIONS
There remains a paucity of objective data regarding when it is safe to resume CPAP following endonasal skull base surgery. Recent cadaveric studies and small retrospective case series suggest that it may be safe to resume CPAP earlier than is often practiced following endonasal skull base surgery.
PubMed: 35619933
DOI: 10.1016/j.wjorl.2021.07.002 -
Acta Neurochirurgica Aug 2023Traditionally, functional neurosurgery relied in stereotactic atlases and intraoperative micro-registration in awake patients for electrode placement in Parkinson's...
BACKGROUND
Traditionally, functional neurosurgery relied in stereotactic atlases and intraoperative micro-registration in awake patients for electrode placement in Parkinson's disease. Cumulative experience on target description, refinement of MRI, and advances in intraoperative imaging has enabled accurate preoperative planning and its implementation with the patient under general anaesthesia.
METHODS
Stepwise description, emphasising preoperative planning, and intraoperative imaging verification, for transition to asleep-DBS surgery.
CONCLUSION
Direct targeting relies on MRI anatomic landmarks and accounts for interpersonal variability. Indeed, the asleep procedure precludes patient distress. A particular complication to avoid is pneumocephalus; it can lead to brain-shift and potential deviation of electrode trajectory.
Topics: Humans; Parkinson Disease; Deep Brain Stimulation; Neurosurgical Procedures; Brain; Magnetic Resonance Imaging
PubMed: 37318635
DOI: 10.1007/s00701-023-05659-7 -
Indian Journal of Otolaryngology and... Apr 2023Tension Pneumocephalus and spontaneous CSF rhinorrhea are very rare associations in clinical practice. We report a case of 65 years old male with clear rhinorrhea,...
Tension Pneumocephalus and spontaneous CSF rhinorrhea are very rare associations in clinical practice. We report a case of 65 years old male with clear rhinorrhea, severe frontal headache, vomiting and lethargy for a week. MR Cisternography and CT Paranasal sinuses showed significant Tension Pneumocephalus with defect in the posterior wall of sphenoid sinus and CSF pooling in the sphenoid sinus. Endoscopic trans-sphenoidal CSF leak repair was done without any delay followed by complete resolution of Tension Pneumocephalus with in 4 post op days. Prompt precise diagnosis and early intervention of Tension Pneumocephalus is vital to avoid neurological complications.
PubMed: 37206754
DOI: 10.1007/s12070-022-03223-w -
Clinical and Experimental Emergency... Sep 2016The use of high-pressure air instruments has become more common. Consequently, there have been a number of cases of orbital emphysema caused by contact with...
The use of high-pressure air instruments has become more common. Consequently, there have been a number of cases of orbital emphysema caused by contact with high-pressure air. In this case, a 62-year-old male patient visited an emergency medical center after his left eye was shot by an air compressor gun that was used to wash cars. Lacerations were observed in the upper and lower eyelids of his left eye. Radiological examinations revealed orbital emphysema, optic nerve transection, pneumocephalus, and subcutaneous emphysema in the face, neck, shoulder, and mediastinum. Canalicular injury repair was performed, and the emphysema resolved. However, there was near-complete vision loss in the patient's left eye. Because most optic nerve transections occur after a severe disruption in bone structure, pure optic nerve transections without any injury of the bone structure, as in the present case, is extremely rare.
PubMed: 27752640
DOI: 10.15441/ceem.15.052 -
Journal of Neurosurgery. Case Lessons Apr 2022Intracranial air may become trapped inside the cranial vault after cranial surgery, causing tension pneumocephalus with a variety of possible neurological symptoms. The...
BACKGROUND
Intracranial air may become trapped inside the cranial vault after cranial surgery, causing tension pneumocephalus with a variety of possible neurological symptoms. The authors reported a unique case in which position-dependent tension pneumocephalus developed after standard pituitary adenoma resection, causing severe intermittent visual symptoms.
OBSERVATIONS
A tiny hole in the sellar floor after transsphenoidal surgery created a valve mechanism, allowing pressurized air accumulation inside the tumor capsule that periodically compressed the optic chiasm. This caused acute visual field defects only when the patient was in an upright position. Symptoms resolved when the patient lay down because pressurized air was allowed to escape from the cranial vault and compression of the optic chiasm was relieved. This phenomenon was verified with consecutive magnetic resonance imaging sequences demonstrating the relaxation of suprasellar space, after the intracranial air had escaped in a horizontal imaging position.
LESSONS
Imperfect sealing of the sellar floor after transsphenoidal surgery is not uncommon. Even a tiny defect may in rare cases work in a valve-like manner, leading to intermittent air accumulation in the suprasellar space and causing corresponding visual symptoms. Pressure pneumocephalus inside an empty tumor capsule should be kept in mind as a possible rare complication after transsphenoidal surgery.
PubMed: 36303508
DOI: 10.3171/CASE21678 -
Cureus Jan 2022Background External ventricular drain (EVD) placement is one of the most common procedures in neurosurgery. Neurosurgeons generally prefer to access the ventricles via...
Background External ventricular drain (EVD) placement is one of the most common procedures in neurosurgery. Neurosurgeons generally prefer to access the ventricles via Kocher's point since it is the most common point of entry to this area; however, this point is used to describe different anatomic landmarks and is not well-defined. Objective The present study aims to describe and provide an anatomical assessment of a novel ventriculostomy access point developed by the authors using computerized tomography (CT) scans performed on 100 patients. Materials and methods Data were collected from 100 randomly selected patients with normal ventricular anatomy found on their 1.0 mm-slice CT scans performed at the Burdenko Neurosurgical Center from March 2019 to June 2021. The CT inclusion criteria were: CT slices < or = to 1 mm and absence of brain herniation. Patients with brain mass lesions, severe brain edema, and pneumocephalus were excluded. Age, gender, and ventricular size were not exclusion criteria. Results The mean patient age was 43.58 years (range 4-73), with 50 men and 50 women. The mean Evan's index was 25.7 % (SD=4.38 %, range 10.2-41.0 %). No differences were found between the angles of EVD placement on either side (89.50±1.22 degrees on the right and 89.60±1.14 degrees on the left). Hence, nearly all EVD cases had been placed perpendicularly to the skull surface at a pinpoint location. Conclusion The proposed point of successful ventriculostomy placement in this study was 3 cm from the bregma along the coronal suture. The angle of EVD placement was approximately 90 degrees in almost all patients and was independent of the patient's age and the side of the head that was entered. Little correlation was found between the value of the entry angle and Evan's index. The point is simply identifiable, and its entry is easily accessible in practice.
PubMed: 35165543
DOI: 10.7759/cureus.21079 -
International Journal of Surgery Case... 2020Trauma-related pneumocephalus and subcutaneous emphysema are relatively common, but pneumocephalus and pneumorrachis that occur without surgery are very rare. We present...
BACKGROUND
Trauma-related pneumocephalus and subcutaneous emphysema are relatively common, but pneumocephalus and pneumorrachis that occur without surgery are very rare. We present a case of pneumorrachis and pnemocephalus developing in the literature for the first time after stabbing from the anterior cervical region and providing improvement with conservative treatment.
CASE PRESENTATION
A 42-year-old male patient was brought to the emergency department after stabbed in the neck. Anteromedial injury of the sternocloid muscle was followed by two lacerations with active bleeding from the same site. The patient was unconscious (Glasgow coma score 8(E2, M4, V2). The patient was intubated. Bleeding foci and lacerations were repaired in the emergency. Cranial, cervical, thoracic and lumbar non-contrast computed tomography scans were performed. Moderate pneumocephalus was seen in the subarachnoid space in the anterior of the bilateral frontal lobe and in the suprasellar cistern region. Pneumorrachis was seen in C2-C7 levels of cervical spinal canal. The patient was pentotalized. 100% oxygen treatment for 6 h was given from the ventilator in intensive unit. After 72 h, cranial, cervical, thoracic and lumbar CT were performed. Pneumorrachis and pneumocephalus were fully recovered.
CONCLUSION
Pneumorrachis is usually asymptomatic and is self-limiting. It is a radiological diagnosis and is not a clinical diagnosis. CT scan is considered the preferred diagnostic method for reliable and rapid detection of pneumorrachis. In case of coexistence, The physician should be alert to diagnose and treat the underlying cause for related injuries.In such cases, successful results can be obtained with hyper-oxy therapy (100% oxygen inhalation) and antibiotic prophylaxis without the need for surgical treatment.
PubMed: 32251988
DOI: 10.1016/j.ijscr.2020.02.031 -
Cureus Apr 2022The basic anatomy and morphology of subarachnoid cisterns of the brain are interesting and challenging topics with high clinical significance. These enlarged CSF-filled... (Review)
Review
The basic anatomy and morphology of subarachnoid cisterns of the brain are interesting and challenging topics with high clinical significance. These enlarged CSF-filled expansions are important as they transmit various neurovascular structures. The cisterns can be classified based on their location as supratentorial, at the level of the tentorium, and infratentorial. They are also classified as paired and unpaired cisterns. The anatomical and radiological information about the cisterns is clinically and surgically relevant in diagnosing and managing many neurological disorders. It is also essential in medical teaching. This pictorial essay reviews the radiological images where the subarachnoid cisterns are delineated in four unique circumstances.
PubMed: 35509744
DOI: 10.7759/cureus.23741 -
Surgical Neurology International 2021Tension pneumocephalus is a rare complication after intracranial procedures and craniotomy. We report a rare case of intraventricular and subdural tension pneumocephalus...
BACKGROUND
Tension pneumocephalus is a rare complication after intracranial procedures and craniotomy. We report a rare case of intraventricular and subdural tension pneumocephalus occurring 2 months after repeat right-sided microvascular decompression (MVD) for recurrent trigeminal neuralgia.
CASE DESCRIPTION
The patient in this case was a 79-year-old woman who presented with acute-onset confusion, headaches, nausea, and vomiting. On computed tomography, substantial volumes of pneumocephalus in the fourth ventricle and subdural space at the site of the retrosigmoid exposure for the previous MVD were seen. She underwent emergent wound exploration, and no obvious dural defect or exposed mastoid air cells were identified. The dura was reopened, and the surgical site was copiously irrigated. Mastoid air cells were covered with ample amounts of bone wax, and the wound was closed. The patient recovered well postoperatively with complete resolution of the pneumocephalus by her 3-month follow-up evaluation.
CONCLUSION
It is important to assess for cerebrospinal fluid leakage and that air cells are sealed off before wound closure to prevent a pathway for air to egress into the surgical cavity and corridor.
PubMed: 34345452
DOI: 10.25259/SNI_917_2020