Treatment of Clival Chordomas: A 20-Year Experience and Systematic Literature Review.

Clival chordomas are rare but aggressive skull base tumors that pose significant treatment challenges and portend dismal prognosis. The aim of this study was to highlight the advantages and limitations of available treatments, to furnish prognostic indicators, and to shed light on novel therapeutic strategies. We conducted a retrospective study of clival chordomas that were surgically treated at our institution from 2003 to 2022; for comparison purposes, we provided a systematic review of published surgical series and, finally, we reviewed the most recent advancements in molecular research. A total of 42 patients underwent 85 surgeries; median follow-up was 15.8 years, overall survival rate was 49.9% at 10 years; meanwhile, progression-free survival was 26.6% at 10 years. A significantly improved survival was observed in younger patients (<50 years), in tumors with Ki67 ≤ 5% and when adjuvant radiotherapy was performed. To conclude, clival chordomas are aggressive tumors in which surgery and radiotherapy play a fundamental role while molecular targeted drugs still have an ancillary position. Recognizing risk factors for recurrence and performing a molecular characterization of more aggressive lesions may be the key to future effective treatment.

Transforming care for patients living with diabetes in rural Mexico: a qualitative study of patient and provider experiences and perceptions of shared medical appointments.

BACKGROUND: Global prevalence of diabetes is increasing, causing widespread morbidity, mortality and increased healthcare costs. Providing quality care in a timely fashion to people with diabetes in low-resource settings can be challenging. In the underserved state of Chiapas, Mexico, which has some of the lowest diabetes detection and control rates in the country, there is a need to implement strategies that improve care for patients with diabetes. One such strategy is shared medical appointments (SMAs), a patient-centred approach that has proven effective in fostering patient engagement and comprehensive care delivery among underserved populations. OBJECTIVE: This study aimed to understand the perceptions, experiences and insights of both patients living with diabetes and healthcare providers, who took part in a pilot SMA strategy implemented in five outpatient clinics in rural Chiapas. METHODS: Following an exploratory qualitative approach, we conducted 50 in-depth interviews with patients and providers involved in diabetes SMAs and five focus group discussions with community health workers providing patient support and education. RESULTS: The implementation of an SMA model changed how diabetes care is perceived, structured and delivered. Patients felt sheltered by group interactions based on trust, which allowed for the exchange of experiences, learning and increased engagement in treatment and lifestyle changes. Providers gained insights into their patients' context and lived experiences, which resulted in improved rapport and quality of care. SMAs also restructured some operational aspects in the clinics and fostered the sharing of power and responsibilities amongst the staff. CONCLUSIONS: The SMAs model transformed care by providing a patient-centred, collaborative approach to diabetes care, education and support. Additionally, it reshaped the health-care team resulting in power-shifting and role-sharing among members of the interdisciplinary team. We therefore encourage decision-makers to expand the use of SMAs to improve care for patients with diabetes in low-resource settings.

Technical note-in situ laminotomy: preserving posterior tension band in surgery of pediatric multilevel spinal tumor.

BACKGROUND: Laminotomy has been introduced in surgical practice to reduce complications of laminectomy after surgery of tumors in the spinal canal. However, the posterior ligament complex, which is routinely interrupted to remove the laminoplasty segment and gain access to the spinal canal, has a tendency not to heal and can lead to progressive kyphosis and collapse. CASE PRESENTATION: A 5-month-old boy affected by a thoracolumbar extradural tumor extending along seven spinal levels was operated on. The tumor was exposed and completely resected by a one-piece laminotomy with preservation of the integrity of the posterior tension band at both extremities. After 1-year radiological examination ruled out spinal deformity. CONCLUSION: The technique herein presented, which we named in situ laminotomy, allows to fully preserve the posterior tension band without reducing the exposure of the spinal canal in multilevel tumors. Additionally, the technique makes also the reconstruction of the spine elements very easy and rapid. However, longer follow-up is necessary to prove the effectiveness of this procedure in preventing long-term deformity and instability.

Eyebrow incision with a crescent-shaped orbital rim craniotomy for microscopic and endoscopic transorbital approach to the anterior and middle cranial fossa: A cadaveric study and case presentation.

•The transorbital approach combining eyebrow incision and crescent-shaped craniotomy increases the surgical freedom to access the anterior and middle skull-base.•The technic allows the use of both endoscope and microscope.•The concept is at the crossroad between the supraorbital keyhole and endoscopic trans-orbital approach.

How to Secure CSF External Drainage to the Skin: Hints from an International Survey and the Current Literature.

AIM: To investigate the current practice of neurosurgeons and their perception of complications related to the securement of external drainage (ED) to the skin. MATERIAL AND METHODS: We created a 24-points English language questionnaire on Google Forms covering the five main domains of care. The survey was distributed among members of the European Society for Pediatric Neurosurgery (ESPN) in April 2020. RESULTS: The results were entirely self-reported, without any independent validation. Fifty-one neurosurgeons practising in different centres worldwide participated in this survey. Despite well-known complications and drawbacks, sutures are still the most commonly used method to secure cerebrospinal fluid (CSF) ventricular ED (49 out of 51 respondents) and spinal ED (37 out of 51) to the skin. Perception of the risk of pullout is estimated as < 1% by 25.5% of the respondents, 1-5% by 39.2%, 5-10% by 17.6% and 10% by 11.8% > . Twenty out of fifty-one respondents acknowledge that their method of securement has drawbacks, and 49% believe that it may also affect the risk of infection. Factors eventually affecting the risk of pullout are young age (62.7%), aetiology (25.5%), neurological status (90.2%), occipital exit site (37.3%), inadequate length of the subcutaneous tunnel (58%), the duration of ED (70.6%), and hospital stay in service (84.3%). 39.2% of respondents agree that the paediatric population deserves a different device or technique to secure ED to the skin. 21.6% of respondents underestimate the risk of accidental pullout. 86.3% of respondents have never read about the 'sutureless subcutaneous anchoring device'. CONCLUSION: Complications associated with the securement method, such as the risk of pullout and infection, are most likely underestimated. More research is needed to implement effective guidelines in this field.

Current trends in the management of subependymal giant cell astrocytomas in tuberous sclerosis.

INTRODUCTION: The management of subependymal giant cells astrocytomas (SEGAs) has been traditionally represented by surgical treatment through an open craniotomic approach. Though open surgery still represents a major option in the management of this kind of tumors, the introduction of mTOR inhibitors in the clinical practice, technological advances in neuroendoscopy and the more recent use of laser interstitial therapy have significantly enlarged the range of available management opportunities. METHODS: A thorough review of the literature has been performed. Accordingly, current views in open surgical treatment, medical therapy, endoscopic tumor removal and new trends (such as laser interstitial thermal therapy) are discussed. RESULTS: The risk of significant neurological morbidity (5-50%) complicating open surgery has been for a long time representing a main drawback in the management of SEGAs. More recent series report a significant reduction of morbidity and mortality. The mTOR inhibitors have demonstrated efficacy in both warranting a tumor reduction by up to 60% of the tumor size and helping the control of seizures. However, the reported rate of side effects is as high as 30% and tumor recurrence is a documented occurrence at the time of mTOR inhibitor discontinuation. Endoscopic tumor removal has been more extensively considered an option due to the acquisition of new tools. Limits are still represented by tumor size (< 3 cm) and broad attachment of the tumor to the basal ganglia. Laser interstitial thermal therapy (LITT) is the more recently considered option. Though promising, only short follow-up is available so far, while data on medium- and long-term results of this treatment are completely lacking to date. CONCLUSIONS: Surgical treatment remains a mainstay of the management of SEGAs. The indication for an open craniotomic approach should be balanced with an endoscopic tumor removal or LITT according to patient conditions, presence or not of an active hydrocephalus and extension of the attachment of the tumor to the basal ganglia. The mTOR inhibitors do have a definite role both as primary and as adjuvant treatment, but consistent limitations are represented up to now by a not negligible rate of complications and the uncertainties related to the possibility of tumor recurrence once the medical treatment is discontinued.

Shared Medical Appointments: An Academic-Community Partnership to Improve Care Among Adults With Type 2 Diabetes in California Central Valley Region.

PURPOSE: The purpose of the study was to evaluate the effectiveness of ALDEA (Latinos con Diabetes en Acción), a Shared Medical Appointment (SMA) intervention, compared to usual primary care (UPC) for the treatment of adults with type 2 diabetes over a 6-month period. It was hypothesized that participants in the SMA will have greater reductions in A1C at 6 months post-intervention compared to the control group. METHODS: This study was a quasi-experimental design with a non-randomized matched control group that followed participants prospectively for 6 months. All adults living with type-2 diabetes receiving primary care at a 2 FQHC clinics were eligible for inclusion. Participants in the control group were matched retrospectively on baseline A1C and age. RESULTS: The reductions in A1C were greater in the ALDEA SMA intervention group relative to the UPC control group at 6 months in both of the FQHC centers and in the combined sample. CONCLUSIONS: This study demonstrated that patients in the ALDEA program had a significantly greater reduction in A1C at 6 months compared to the control group. Despite its limitations, the ALDEA SMA program was successful in empowering patients and improving glycemic control.

Shared Medical Appointments: An Innovative Model to Reduce Health Disparities Among Latinxs With Type-2 Diabetes.

In the United States, diabetes is epidemic. A study of Latinxs with diabetes evaluated a behavioral shared medical appointment (SMA) intervention. This quasi-experimental study included nonrandomized matched control group participants receiving usual care. The nonprobability convenience sample consisted of 90 participants (SMA = 30; control = 60) receiving primary care at an FQHC (Federally Qualified Health Center) clinic. At 6 months, the percentage of participants achieving target A1C goals was greater in the intervention group (59%) than in the control group (31%; χ2 = 4.462, p ≤ .05). In a multiple regression model, the SMA intervention group, compared to the control group had an A1C decline at 3 months of 0.55% (b = - 0.55, t = - 1.48, p=.14) and an A1C decline at 6 months of 0.83% (b= - 0.83, t= - 2.25, p = .03). Therefore, the results showed 3- and 6-month declines that were greater in the SMA group than in the control group. Underserved, underinsured Latinxs in the ALDEA program achieved significant A1C reductions; the program succeeded in empowering Latino patients and improving glycemic control.