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Journal of Craniovertebral Junction &... 2023Anterior craniocervical junction lesions have always been a challenge for neurosurgeons. Presenting with lower cranial nerve dysfunction and symptoms of brainstem...
CONTEXT
Anterior craniocervical junction lesions have always been a challenge for neurosurgeons. Presenting with lower cranial nerve dysfunction and symptoms of brainstem compression, decompression is often required. While posterior approaches offer indirect ventral brainstem decompression, direct decompression via odontoidectomy is necessary when they fail. The transoral and endoscopic endonasal approaches have been explored but come with their own limitations and risks. A novel retropharyngeal approach to the cervical spine has shown promising results with reduced complications.
AIMS
This study aims to explore the feasibility and potential advantages of the anterior retropharyngeal approach for accessing the odontoid process.
METHODS AND SURGICAL TECHNIQUE
To investigate the anatomical aspects of the anterior retropharyngeal approach, a paramedian skin incision was performed below the submandibular gland on two cadaveric specimens. The subcutaneous tissue followed by the platysma is dissected, and the superficial fascial layer is opened. The plane between the vascular sheath laterally and the pharyngeal structures medially is entered below the branching point of the facial vein and internal jugular vein. After reaching the prevertebral plane, further dissection cranially is done in a blunt fashion below the superior pharyngeal nerve and artery. Various anatomical aspects were highlighted during this approach.
RESULTS
The anterior, submandibular retropharyngeal approach to the cervical spine was performed successfully on two cadavers highlighting relevant anatomical structures, including the carotid artery and the glossopharyngeal, hypoglossal, and vagus nerves. This approach offered wide exposure, avoidance of oropharyngeal contamination, and potential benefit in repairing cerebrospinal fluid fistulas.
CONCLUSIONS
For accessing the craniocervical junction, the anterior retropharyngeal approach is a viable technique that offers many advantages. However, when employing this approach, surgeons must have adequate anatomical knowledge and technical proficiency to ensure better outcomes. Further studies are needed to enhance our anatomical variations understanding and reduce intraoperative risks.
PubMed: 38268697
DOI: 10.4103/jcvjs.jcvjs_112_23 -
Cranio : the Journal of... Sep 2023
The association between mandibular position to cervical spine and internal jugular vein diameters in upright position. Have we been ignoring critical generators of head and neck pathology?
Topics: Humans; Jugular Veins; Neck; Head; Cervical Vertebrae
PubMed: 37565696
DOI: 10.1080/08869634.2023.2243756 -
Pediatric Reports Mar 2024Lemierre syndrome is a rare, potentially fatal complication of oropharyngeal infections characterized by septic thrombophlebitis of the internal jugular vein. It... (Review)
Review
BACKGROUND
Lemierre syndrome is a rare, potentially fatal complication of oropharyngeal infections characterized by septic thrombophlebitis of the internal jugular vein. It primarily affects healthy adolescents and young adults. Its incidence declined after the antibiotic era, but it may have resurged in recent decades, likely due to judicious antibiotic use and increasing bacterial resistance. Prompt diagnosis and treatment are imperative to prevent significant morbidity and mortality.
METHODS
Lemierre syndrome has been called "the forgotten disease," with a reported incidence of around 3.6 cases per million. The mean age at presentation is around 20 years old, though it can occur at any age. Lemierre Syndrome follows an oropharyngeal infection, most commonly pharyngitis, leading to septic thrombophlebitis of the internal jugular vein. is the classic pathogen, though other organisms are being increasingly isolated. Metastatic infections, especially pulmonary, are common complications. Contrast-enhanced CT of the neck confirming internal jugular vein thrombosis is the gold standard for diagnosis. Long-course broad-spectrum IV antibiotics covering anaerobes are the mainstays of the disease's treatment. Anticoagulation may also be considered. Mortality rates are high without treatment, but most patients recover fully with appropriate therapy.
CONCLUSIONS
Lemierre syndrome should be suspected in patients with prolonged pharyngitis followed by unilateral neck swelling and fevers. Early diagnosis and prompt antibiotic therapy are key, given the potential for disastrous outcomes if untreated. An increased awareness of Lemierre syndrome facilitates its timely management.
PubMed: 38535514
DOI: 10.3390/pediatric16010018 -
The Journal of Vascular Access Nov 2023The purpose is to analyze whether the external jugular vein (EJV) is a feasible and safe alternative access for the retrieval IVCFs designed for the jugular approach.
PURPOSE
The purpose is to analyze whether the external jugular vein (EJV) is a feasible and safe alternative access for the retrieval IVCFs designed for the jugular approach.
METHODS
This study was designed as a nonrandomized, controlled study. The patients were divided into two groups: the IJV or EJV access groups. All operations were performed by the vascular surgery team. The main outcome was the technical success rate. The secondary outcomes included (1) the IVCF retrieval rate; (2) the time required to puncture the access vein (min); (3) the number of punctures required for access, and other aspects.
RESULTS
A total of 119 patients were recruited for IVCF retrieval. Seventeen patients refused to join this trial, leaving 58 patients in the IJV group and 44 patients in the EJV group. In the IJV group, technical success was not achieved in one patient who started in the EJV group and was transferred to the IJV group. There was no significant difference in age, comorbidities, or technical success rate between the two groups. Significant differences were observed in puncture time (min), number of punctures, and inadvertent puncture of the carotid artery. All of the patients were discharged 1 or 2 days after the operation.
CONCLUSION
EJV is safe and feasible alternative access for the retrieval of IVCFs that are designed for jugular approaches.
Topics: Humans; Jugular Veins; Retrospective Studies; Vena Cava Filters; Catheterization, Central Venous; Punctures; Device Removal; Vena Cava, Inferior; Treatment Outcome
PubMed: 35168443
DOI: 10.1177/11297298211064467 -
Mediastinum (Hong Kong, China) 2024Lung cancers and mediastinal masses can invade the veins in the upper mediastinum and neck. It can be challenging to determine management options and the feasibility of... (Review)
Review
Lung cancers and mediastinal masses can invade the veins in the upper mediastinum and neck. It can be challenging to determine management options and the feasibility of resection particularly when tumors involve the major venous junctions. Furthermore, impaired flow in these veins can have devastating complications such as Paget-Schroetter syndrome, which describes a constellation of symptoms (arm swelling, cyanosis, pain) due to stenosis of the subclavian vein. This section will provide an overview of venous drainage of the brain, which can be divided into two major systems-superficial medullary venous system and deep medullary venous system. The anatomy and function of the great veins of the neck and upper mediastinum, including the internal jugular vein, subclavian vein, and brachiocephalic (i.e., innominate) vein will be described. Also discussed will be principles of ligation of the venous structures and the importance of keeping the venous junctions intact to facilitate and maximize the development of collateral flow. This section will also discuss ensuing complications when blood flow is impaired, such as development of upper extremity deep venous thrombosis and cerebral venous thrombosis (CVT). CVT can result in a stroke and is an umbrella term that refers to problems in cerebral venous outflow due to numerous etiologies.
PubMed: 38322186
DOI: 10.21037/med-23-15 -
Journal of Pediatric Surgery Nov 2023There are currently no commonly accepted standardized guidelines for management of cervical vessels at neonatal extracorporeal membrane oxygenation (ECMO) decannulation....
BACKGROUND
There are currently no commonly accepted standardized guidelines for management of cervical vessels at neonatal extracorporeal membrane oxygenation (ECMO) decannulation. This study investigates neonatal ECMO decannulation practices regarding management of the carotid artery and internal jugular vein, use of post-repair anticoagulation, and follow-up imaging.
METHODS
A survey was distributed to the 37 institutions in the Children's Hospitals Neonatal Consortium. Respondents reported their standard approach to carotid artery and internal jugular vein management (ligation or repair) at ECMO decannulation by their pediatric surgery and cardiothoracic (CT) surgery teams as well as post-repair anticoagulation practices and follow-up imaging protocols.
RESULTS
The response rate was 95%. Pediatric surgeons performed most neonatal respiratory ECMO cannulations (88%) and decannulations (85%), while all neonatal cardiac ECMO cannulations and decannulations were performed by CT surgeons. Pediatric surgeons overwhelmingly ligate both vessels (90%) while CT surgeons typically repair both vessels at decannulation (83%). Of the responding centers that repair, 28% (7) have a standard anticoagulation protocol after neck vessel repair. While 52% (13) of centers routinely image cervical vessel patency at least once post repair, most do not subsequently repeat neck vessel imaging.
CONCLUSIONS
Significant practice differences exist between pediatric and CT surgeons regarding the approach to cervical vessels at neonatal ECMO decannulation. For those centers that do repair the vessels there is little uniformity in post-repair anticoagulation or imaging protocols. There is a need to develop standardized cervical vessel management guidelines for neonatal ECMO patients and to study their impact on both short- and long-term outcomes.
LEVEL OF EVIDENCE
IV.
PubMed: 37573253
DOI: 10.1016/j.jpedsurg.2023.07.007 -
Diagnostics (Basel, Switzerland) Aug 2023Tumoral lesions of the temporal bone include benign or malignant tumors and congenital or inflammatory lesions. Temporal bone lesions are difficult to approach.... (Review)
Review
Tumoral lesions of the temporal bone include benign or malignant tumors and congenital or inflammatory lesions. Temporal bone lesions are difficult to approach. Therefore, making a preoperative diagnosis and considering whether the lesions require treatment are necessary; if they require treatment, then the type of treatment requires consideration. These tumors cannot be observed directly and must be diagnosed based on symptoms and imaging findings. However, the differentiation of temporal bone lesions is difficult because they are rare and large in variety. In this pictorial review, we divided temporal bone lesions by location such as along the facial nerve, along the internal jugular vein, around the endolymphatic sac, in the internal auditory canal/cerebellopontine angle, petrous apex, middle ear, and mastoid, focusing on the imaging findings of temporal bone lesions. Then, we created a diagnostic flowchart that suggested that the systematic separation of imaging findings is useful for differentiation. Although it is necessary to make comprehensive judgments based on the clinical symptoms, patient background, and imaging findings to diagnose temporal bone mass lesions, capturing imaging features can be a useful differentiation method.
PubMed: 37627924
DOI: 10.3390/diagnostics13162665 -
Operative Neurosurgery (Hagerstown, Md.) Dec 2023The retrosigmoid intradural suprameatal approach is mostly indicated for tumors in the cerebellopontine angle extending toward the Meckel cave and supratentorial...
INDICATIONS CORRIDOR AND LIMITS OF EXPOSURE
The retrosigmoid intradural suprameatal approach is mostly indicated for tumors in the cerebellopontine angle extending toward the Meckel cave and supratentorial regions, most frequently meningiomas and schwannomas. This approach was first established by the senior author in 1982.
ANATOMIC ESSENTIALS NEED FOR PREOPERATIVE PLANNING AND ASSESSMENT
Nervous structures: cranial nerves III to XII, cerebellum, and brainstem. Vascular structures: anterior inferior cerebellar artery, posterior inferior cerebellar artery, superior cerebellar artery, basilar artery, vertebral artery, transverse, sigmoid, and petrous sinus, petrosal vein/veins, basilar plexus, and the mastoid emissary vein. Bony structures: petrous bone with internal auditory canal, jugular foramen and suprameatal tubercle, petrous apex, dorsum sellae, and posterior clinoid process. Structures within the petrous bone: vestibule, semicircular canals, and jugular bulb.
ESSENTIALS STEPS OF THE PROCEDURE
After a suboccipital retrosigmoid craniectomy in the semisitting position and debulking of the tumor mass in the cerebellopontine angle, extension is achieved by drilling suprameatal tubercle above cranial nerve VII and VIII toward the petrous apex. The extent of bone drilling is tailored for each patient.
PITFALLS/AVOIDANCE OF COMPLICATIONS
Avoid damage to cranial nerves, arteries, and veins during drilling, dissection, and tumor removal or by retraction.
VARIANTS AND INDICATIONS FOR THEIR USE
In case of extreme supratentorial extensions laterally and dorsally, the opening of the tentorium may be helpful. For inferior extensions toward the upper spinal canal, opening of the foramen magnum and hemilaminectomy of C1 may be necessary.The patient consented to the procedure and to the publication of his/her image. Institutional logo in title slide, © 2023, INI Hannover. Used with permission.
PubMed: 38084947
DOI: 10.1227/ons.0000000000001030