Ruptured Aortic Aneurysm in Pregnancy, Anesthetic Management of Endovascular Procedure.

ABSTRACT: Advanced pregnancy is associated with a higher risk of complicated aortopathies owing to the physiologic changes in pregnancy. The diagnosis can be elusive due to its rare incidence. The optimal treatment strategy is chosen based on the clinical condition of the patient, gestational age, and the severity of the aortic disease. A healthy young primigravida presented with acute chest pain in the early second trimester, diagnosed as a thoracic aortic aneurysm that had ruptured causing hemothorax. She underwent emergency endovascular repair under general anesthesia. Aortic disease should always be ruled out early in acute chest pain in pregnancy. Expeditious and strategic management helps improve maternal and fetal outcomes.

Investigation of antimicrobial susceptibility patterns, risk factors and their impact on mortality in cancer patients at a tertiary care cancer hospital- A prospective study.

BACKGROUND: Cancer patients are vulnerable to infections due to immunosuppression caused by cancer itself and its treatment. The emergence of antimicrobial-resistant bacteria further complicates the treatment of infections and increases the mortality and hospital stays. This study aimed to investigate the microbial spectrum, antimicrobial resistance patterns, risk factors, and their impact on clinical outcomes in these patients. METHODS: A prospective study was conducted at a tertiary care cancer hospital in Patna, Bihar, India, which included cancer patients aged 18 years and older with positive microbial cultures. RESULTS: This study analysed 440 patients, 53% (234) of whom were females, with an average age of 49.27 (± 14.73) years. A total of 541 isolates were identified, among which 48.01% (242) were multidrug resistant (MDR), 29.76% (150) were extensively drug resistant (XDR), and 19.84% (112) were sensitive. This study revealed that patients who underwent surgery, chemotherapy, were hospitalized, had a history of antibiotic exposure, and had severe neutropenia were more susceptible to MDR and XDR infections. The average hospital stays were 16.90 (± 10.23), 18.30 (± 11.14), and 22.83 (± 13.22) days for patients with sensitive, MDR, and XDR infections, respectively. The study also revealed overall 30-day mortality rate of 31.81% (140), whereas the MDR and XDR group exhibited 38.92% and 50.29% rates of 30-day mortality respectively (P < 0.001). Possible risk factors identified that could lead to mortality, were cancer recurrence, sepsis, chemotherapy, indwelling invasive devices such as foley catheter, Central venous catheter and ryles tube, MASCC score (< 21) and pneumonia. CONCLUSIONS: This study emphasizes the necessity for personalized interventions among cancer patients, such as identifying patients at risk of infection, judicious antibiotic use, infection control measures, and the implementation of antimicrobial stewardship programs to reduce the rate of antimicrobial-resistant infection and associated mortality and hospital length of stay.

Sheehan's Syndrome in India: Clinical Characteristics and Laboratory Evaluation.

Background: Sheehan's Syndrome (SS) is an important cause of hypopituitarism especially in developing countries though it remains underdiagnosed to a great extent. Torrential bleeding after delivery followed by lactation failure and amenorrhoea gives a clue to the diagnosis which is usually made after several years of delivery. Materials and Methods: It was a retrospective observational study conducted by reviewing the case records of 38 cases of SS. The age, anthropometric measurements, signs and symptoms, biochemical parameters, hormone levels and imaging reports were examined and analyzed. Results: The mean age at presentation was 36.5 years because there was a delay of 8.4 years from last delivery before diagnosis could be made. Ninety percent patients presented with lactation failure. Anaemia, hypotension, hypogonadism, hypothyroidism, and altered lipid profile were the most common findings. The mean systolic blood pressure (BP) was 80.95 mm and diastolic BP was 51.6 mm of Hg at the time of presentation. Hyponatremia was the most common electrolyte abnormality noted and low HDL was the commonest lipid abnormality. Conclusion: A large percentage of patients presented with amenorrhea, lactation failure, and decreased or absent axillary/pubic hair. Shock, anemia, and hyponatremia were also common symptoms among the patients studied. The diagnosis of SS rests upon a thorough history taking of the postpartum events in cases presenting with hypopituitarism irrespective of the age at presentation. Proper antenatal care with exclusive institutional deliveries can reduce the prevalence of SS in developing countries.

Assessing the Prevalence of Financial Toxicity, its Predictors and Association with Health- Related Quality of Life Among Radiation Oncology Patients in India: A Cross-Sectional Patient Reported Outcome Study.

PURPOSE: Financial toxicity has been associated with several clinical outcomes such as early mortality and poor quality of life. The aim of this study was to evaluate the magnitude of financial toxicity among radiation oncology patients and its association with health-related quality of life (HRQOL) in Indian health care settings. METHODS AND MATERIALS: This cross-sectional study was conducted among patients with cancer who had completed radiation therapy, either standalone or as part of a multimodal treatment. Financial toxicity and HRQOL were assessed using the Comprehensive Score for Financial Toxicity (COST) and Functional Assessment of Cancer Therapy: General (FACT-G) measures, respectively. Associations between financial toxicity and HRQOL were assessed using Pearson correlation. Univariate and multivariate regression analyses were conducted to identify the factors associated with financial toxicity. RESULTS: A total of 350 patients were included in this study. Of the 350 participants, 57.7% were male, 95.7% had no health insurance, and 61% were diagnosed with Head & Neck cancers. The average COST score was 15.38 ± 9.18 (range, 2-35), and the average FACT-G score was 69.63 ± 12.25 (range, 33-99). Based on the total COST score, 7.4% of participants reported grade 3 and 44.9% reported grade 2 financial toxicity. A significant positive correlation was observed between the COST and FACT-G scores, with a correlation coefficient of 0.58 (P < .001), indicating a large effect size. The COST score also significantly predicted the FACT-G score (ß = 0.77; 95% confidence interval [CI], 0.66-0.88; P < .001). The results of multivariate linear regression identified annual household income (ß = 3.9; 95% CI, 3.29-4.57; P < .001) and cancer type (ß = 3.74; 95% CI, 2.33-5.14; P < .001) as significant predictors of the COST score. CONCLUSIONS: More than 80% of the participants experienced financial toxicity in this study. The results highlight the need for interventions to alleviate the growing financial toxicity among cancer survivors in India.

Designing of Peptide Based Multi-Epitope Vaccine Construct against Gallbladder Cancer Using Immunoinformatics and Computational Approaches.

Gallbladder cancer (GBC) is an aggressive and difficult to treat biliary tract carcinoma with a poor survival rate. The aim of this study was to design a peptide-based multi-epitope vaccine construct against GBC using immunoinformatics approaches. Three proteins implicated in the progression of GBC were selected for B and T cell epitope prediction and the designing of the potential vaccine construct. Seven CTL, four HTL and six Bcell epitopes along with a suitable adjuvant were selected and connected using linkers for designing the vaccine construct. The secondary and tertiary models of the designed vaccine were generated and satisfactorily validated. A Ramachandran plot of the final 3D model showed more than 90% of the residues in allowed regions and only 0.4% in disallowed regions. The binding affinity of a vaccine construct with TLR 2, 3 and 4 receptors was assessed through molecular docking and simulation. The average numbers of hydrogen bonds for vaccine-TLR 2, 3 and 4 complexes in the simulation were 15.36, 16.45, and 11.98, respectively, and remained consistent over a 100 ns simulation period, which is critical for their function. The results of this study provide a strong basis for further evaluation through in vitro/in vivo experimental validation of the safety and efficacy of the designed vaccine construct.

A Study of Head and Neck Cancer Patients with Reference to Tobacco Use, Gender, and Subsite Distribution.

Richa ChauhanContext Head and neck cancer (HNC) is very common in India, constituting 30% of all the cancers because of the widespread use of tobacco across India. The prevalence and pattern of tobacco use vary in different regions and states of the country. Although predominantly seen in males, studies have reported that the male-to-female ratio varies worldwide and also by anatomical subsite. Aims This study was done with an aim to determine the difference in pattern and prevalence of tobacco use in male and female patients with HNCs and compare them with different subsites' involvement in our region. Methods and Materials This is a retrospective analysis of 500 consecutive biopsy-proven HNC patients from a large comprehensive cancer hospital from Bihar during the period of January 2019 to June 2019. Data collected for the study included age, gender, site of the disease, and use of tobacco. The categorical data were analyzed by a chi-square test using SPSS (version 16). Results Our study showed a male-to-female ratio of 8.43:1 with tobacco addiction in 84.40% patients. Smokeless tobacco was used by 52.20%, combustible form by 12.80%, and both by 19.40% of the patients. Tobacco use was seen in 87.25% of male patients as compared with only 60.38% of female patients ( p -value = 0.0001). Oral cavity cancer was seen in 60.85% of male patients and 37.74% of female patients ( p -value = 0.0012), whereas oropharyngeal cancer was seen in only 11.63% of male patients as compared with 25.83% of female patients ( p -value = 0.0008). The subsite analysis showed that in patients with oral cavity cancers, no addiction was found in only 10.29% of male patients as compared with 30% of the female patients ( p -value = 0.008). Conclusions Our study confirms a high prevalence of tobacco use among HNC patients. So, we need to continue our efforts to create awareness against tobacco use. Besides, there is also a need for more studies to look into other etiological factors among nontobacco users.

A comparative analysis of the clinicopathological profile of early-onset versus late-onset rectal cancer patients.

Introduction: Colorectal cancer has been primarily considered a disease of the elderly, but recent data have shown an alarming rise among young people. It has been also suggested that young age is associated with aggressive histopathological characteristics and advanced stages of the disease at diagnosis. As there are few studies and none from our part of the country evaluating the clinicopathological profile of early-onset versus late-onset rectal cancer patients, this analysis was conducted to assess and compare the clinical and pathological characteristics of patients with rectal cancer diagnosed with ages over and below 50 years. Materials and method: The relevant details of all biopsy proven rectal cancer patients undergoing radiotherapy at a tertiary cancer hospital, from January 2017 to December 2019, were collected. All the data were categorised into two groups, an early-onset group (age <50 years) and a late-onset group (age ≥50 years), and comparison of the clinicopathological characteristics between the two groups was made. Results: A total of 224 patients with rectal cancer, 150 male and 74 female, were included in the study. About two-thirds of the patients were less than 50 years of age, with an average age of 42 years. The comparative analysis showed a significantly higher number of young patients presenting with bleeding and pain. Patients below 50 years also had a significantly higher number of adenocarcinoma grade III and clinical stage III than those in the late-onset group. Conclusion: Our study revealed a significant number of early-onset rectal cancer patients. There should be a high index of suspicion in any young patient presenting with symptoms suggestive of rectal malignancy and they should be evaluated promptly.

CD157 Can Replace CD24 and CD14 in a Single-Tube Flow-Cytometric Assay to Detect Paroxysmal Nocturnal Hemoglobinuria (PNH) Clones on Both Neutrophils and Monocytes: A Prospective Study From North India.

Introduction As per current guidelines, detection of paroxysmal nocturnal hematuria (PNH) clones on leucocytes requires the demonstration of the loss of at least two glycosyl-phosphatidyl-inositol (GPI)-linked molecules on both neutrophils and monocytes by flow cytometry. CD24 and CD14 are GPI-linked molecules expressed on neutrophils and monocytes respectively, whereas another GPI-linked molecule, CD157, is expressed on both neutrophils and monocytes. This prospective study evaluated the ability of CD157 to replace both CD24 and CD14 in a single-tube flow-cytometric assay to detect PNH clones on both neutrophils and monocytes. Materials and methods PNH clones were newly detected in 52 patients by an existing "standard" single-tube six-color flow-cytometric method, which was routinely performed in our laboratory at the time of undertaking this study. Six antibodies (CD45/CD15/CD64/CD24/CD14/FLAER) were used in this "standard" technique. Subjects were divided into two groups: (i) PNH disease (n=10), and (ii) aplastic anemia/myelodysplastic syndrome (AA/MDS) (n=42). Diagnosis of PNH disease and AA/MDS were made as per standard literature and guidelines. Results were compared with a single-tube five-color "test" assay using the antibodies CD45/CD15/CD64/CD157/FLAER by flow cytometry. Samples from 20 healthy control subjects were used to calculate cut-off values for the "test" assay. Results By the "test" method, cut-off values for detecting PNH clones obtained from receiver operating-characteristic curve analysis were >0.4% for neutrophils (sensitivity=96.15%, specificity=95%), and >0.9% for monocytes (sensitivity=98.08%, specificity=95%). There was significant correlation between PNH clone sizes measured by both the "standard" and "test" assays in neutrophils (PNH disease: r=0.976, p<0.001; AA/MDS: r=0.980, p<0.001) as well as monocytes (PNH disease: r=0.806, p=0.005; AA/MDS: r=0.915, p<0.001). Bland-Altman analysis showed agreement between both assays in all the 52 patients and in individuals with AA/MDS. The cost of the test to the patients was about 15% less in the "test" method than the "standard" technique, with improved technical efficiency. Conclusion CD157 can replace both CD24 and CD14 in a single-tube flow-cytometric assay to detect PNH clones on both neutrophils and monocytes, with reduced cost to the patients and improved technical efficiency.

Pre-treatment hematological parameters as a cost effective predictive marker for response to concurrent chemo radiation in locally advanced cervical cancer.

INTRODUCTION: Locally advanced cervical cancer is still a major cause of mortality in developing countries. Recently, personalized medicine has changed the treatment paradigm for many solid cancers but no robust biomarkers has yet been validated for predicting response to chemo radiation in cervical cancer patients. AIM: To assess the role of hematological parameters as a cost-effective predictive marker of response to concurrent chemo radiation in cervical cancer patients. MATERIALS AND METHOD: This is a retrospective analysis of 90 cervical cancer patients treated with concurrent chemo radiation in a tertiary cancer center. Clinical details of the patients were extracted from the case records. For end point evaluation, the pre-treatment levels of hemoglobin, neutrophil, lymphocyte, platelet, platelet lymphocyte ratio (PLR) and neutrophil lymphocyte ratio (NLR) were compared and statistically analyzed between responders and non-responders. The optimal cutoff values of hematological parameters were estimated by the receiver operating characteristics (ROC) curve. RESULT: Out of 90 patients, 60 (66.66%) were complete responders and remaining 30 (33.33%) were non-responders. The mean value of platelet, NLR, and PLR was significantly higher in the non-responder group. ROC curve analysis showed the optimal cut-off value of pre-treatment Hb, PLT, NLR and PLR to be 11 gm/dl, 3, 177 × 109/L, and 70 respectively. CONCLUSION: Our study suggests that simple hematological markers like NLR, PLT count and PLR could be used as a cost effective pretreatment predictive marker for response to chemo radiation in cervical cancer patients.

Diffusion and perfusion imaging biomarkers of H3 K27M mutation status in diffuse midline gliomas.

PURPOSE: H3K27M-mutant diffuse midline gliomas (M-DMGs) exhibit a clinically aggressive course. We studied diffusion-weighted imaging (DWI) and perfusion (PWI) MRI features of DMG with the hypothesis that DWI-PWI metrics can serve as biomarkers for the prediction of the H3K27M mutation status in DMGs. METHODS: A retrospective review of the institutional database (imaging and histopathology) of patients with DMG (July 2016 to July 2020) was performed. Tumoral apparent diffusion coefficient (ADC) and peritumoral ADC (PT ADC) values and their normalized values (nADC and nPT ADC) were computed. Perfusion data were analyzed with manual arterial input function (AIF) and leakage correction (LC) Boxerman-Weiskoff models. Normalized maximum relative CBV (rCBV) was evaluated. Intergroup analysis of the imaging variables was done between M-DMGs and wild-type (WT-DMGs) groups. RESULTS: Ninety-four cases (M-DMGs-n = 48 (51%) and WT-DMGs-n = 46(49%)) were included. Significantly lower PT ADC (mutant-1.1 ± 0.33, WT-1.23 ± 0.34; P = 0.033) and nPT ADC (mutant-1.64 ± 0.48, WT-1.83 ± 0.54; P = 0.040) were noted in the M-DMGs. The rCBV (mutant-25.17 ± 27.76, WT-13.73 ± 14.83; P = 0.018) and nrCBV (mutant-3.44 ± 2.16, WT-2.39 ± 1.25; P = 0.049) were significantly higher in the M-DMGs group. Among thalamic DMGs, the min ADC, PT ADC, and nADC and nPT ADC were lower in M-DMGs while nrCBV (corrected and uncorrected) was significantly higher. Receiver operator characteristic curve analysis demonstrated that PT ADC (cut-off-1.245), nPT ADC (cut-off-1.853), and nrCBV (cut-off-1.83) were significant independent predictors of H3K27M mutational status in DMGs. CONCLUSION: DWI and PWI features hold value in preoperative prediction of H3K27M-mutation status in DMGs.

The utility of a single tube 10-color flow cytometry for quantitative and qualitative analysis in myelodysplastic syndrome- a pilot study.

INTRODUCTION: Assessment of myelodysplasia (MDS) by flow cytometry (FCM) includes elaborate panels, and interpretation is observer-dependent. This study evaluates single tube 10-color FCM in a test cohort of clinically suspected MDS patients. METHODS: We analyzed fifty-six bone marrow (BM) samples from clinically suspected MDS patients in a morphology-blinded manner along with controls using a 10-color single tube flow cytometry. We analyzed the reproducibility of Ogata score and modified FCM scores, additionally incorporating the proportion of CD15, CD11b, CD56, and CD38MFI on CD34+CD19-cluster for each patient. Patients were grouped as proven-MDS, suspected-MDS, and non-MDS groups based on morphology and cytogenetics. Optimized multi-axial radar-plots were also used to analyze maturation patterns in the granulocytic, monocytic, and blast progenitor compartments of proven-MDS cases and controls. RESULTS: Flow cytometric abnormalities ≥3 were present in proven-MDS (n = 23) with a sensitivity and specificity of 78 % and 94 %, respectively, as per Ogata score. The addition of CD38 MFI to the score yielded sensitivity and specificity of 82 % and 88 %, respectively. Additional analysis of aberrant expression of CD15, CD11b, and CD56 increased the diagnostic power of the FCM score. A qualitative analysis of data also showed differences in maturation patterns in proven-MDS compared to the control group. CONCLUSION: Single tube 10-color FCM scoring, including Ogata score, modified-FCM scores, and radar plots pattern analysis, showed significant abnormalities in proven-MDS cases in this pilot study. Large databases, including FCM-scoring and pattern-based analysis for normal BM maturation, could be further validated and standardized for screening MDS.

Assessing the reliability and validity of comprehensive score for financial toxicity (COST) among radiation oncology patients in India: a cross-sectional pilot study.

BACKGROUND: Besides physical toxicity, cancer care imposes significant financial distress referred to as financial toxicity (FT). FT has become a growing concern among cancer patients. Researchers have associated FT among cancer patients with clinical outcomes like mortality, poor quality of life and non-adherence. Currently, no reliable tools are available for assessing FT among cancer patients in India. The aim of this pilot study was to test the reliability and validity of the Comprehensive Score for Financial Toxicity (COST) questionnaire among patients undergoing radiotherapy in India. MATERIAL AND METHODS: This cross-sectional pilot study was conducted among head and neck cancer patients on follow-up in radiation oncology department. The reliability of COST measure was assessed using Cronbach's α. The underlying construct of COST was verified by Exploratory Factor Analysis (EFA). EFA was performed using parallel analysis technique. RESULTS: Based on inclusion and exclusion criteria, the COST questionnaire was administered to 29 patients using the interview method after written informed consent. The COST measure demonstrated excellent reliability with Cronbach's α of 0.92. A Kaiser-Meyer-Olkin of 0.87 verified the sample adequacy and a p-value of ˂0.001on Bartlett's sphericity test indicated that the strength of the correlation between 11 COST items was good to perform the EFA. Parallel analysis technique identified one factor on scree plot with eigenvalue of 6.21 explaining 56.5% of the variance by non-rotated solution. All the factor loadings in one factor model were ˃0.3 (range 0.35-0.97). The factor loadings indicated that the underlying construct can be considered as one factor domain as intended by the original COST development study. However, Chi-square goodness of fit test revealed the one factor model did not adequately depict the data. However, the results were consistent with the construct obtained in the original scale development study. CONCLUSION: This pilot study demonstrated excellent reliability of COST for measuring FT among radiation oncology patients. Further studies are warranted to study the clinical implications of FT in the Indian population for making better strategies and policies to ease the financial burden on cancer patients.

Prediction of H3K27M mutation status of diffuse midline gliomas using MRI features.

BACKGROUND AND PURPOSE: Presurgical prediction of H3K27M mutation in diffuse midline gliomas (DMGs) on MRI is desirable. The purpose of this study is to elaborate conventional MRI (cMRI) features of H3K27M-mutant DMGs and identify features that could discriminate them from wild-type (WT) DMGs. METHODS: CMRI features of 123 patients with DMG were evaluated conforming to the institutional research protocols. Multimodality MRI was performed on 1.5 or 3.0 Tesla MR Scanners with imaging protocol, including T1-weighted (w), T2w, fluid-attenuated inversion recovery, diffusion-weighted, susceptibility-weighted, and postcontrast T1w sequences. Pertinent cMRI features were annotated along the lines of Visually AcceSAble Rembrandt Images features, and Intra Tumoral Susceptibility Signal score (ITSS) was evaluated. R software was used for statistical analysis. RESULTS: Sixty-one DMGs were H3K27M-mutant (mutant DMGs). The patients in the H3K27M-mutant DMG group were younger compared to the WT-DMG group (mean age 24.13 ± 13.13 years vs. 35.79±18.74 years) (p = 0.016). The two groups differed on five cMRI features--(1) enhancement quality (p = 0.032), (2) thickness of enhancing margin (p = 0.05), (3) proportion of edema (p = 0.002), (4) definition of noncontrast-enhancing tumor (NCET) margin (p = 0.001), and (5) cortical invasion (p = 0.037). The mutant DMGs showed greater enhancement and greater thickness of enhancing margin, while the WT DMGs exhibited significantly larger edema proportion with poorly defined NCET margins and cortical invasion. ITSS was not significantly different among the groups. CONCLUSION: CMRI features like enhancement quality, the thickness of the enhancing margin, proportion of edema, definition of NCET margin, and cortical invasion can discriminate between the H3K27M-mutant and WT DMGs.

Embolectomy by SOLUMBRA Technique for Nontarget Intracranial Glue Migration- Complication and Bailout after Percutaneous Embolization of Orbital Meningioma.

Presurgical devascularization of neoplasms of the head and neck can be achieved by endovascular as well as direct percutaneous embolization techniques. We report a case of percutaneous glue embolization of an orbital meningioma, complicated by delayed acute stroke due to the distal migration of polymerized glue in the left middle cerebral artery. To the best of our knowledge, this is the first report to discuss the percutaneous embolization of orbital meningioma complicated by stroke due to intracranial glue migration.

Development and Validation of Subjective Financial Distress Questionnaire (SFDQ): A Patient Reported Outcome Measure for Assessment of Financial Toxicity Among Radiation Oncology Patients.

BACKGROUND: Financial toxicity is a consequence of subjective financial distress experienced by cancer patients as a result of treatment expenditures. Financial toxicity has been associated with poor quality of life, early mortality, and non-adherence. It is evident from the literature that the currently available instruments for the assessment of financial toxicity do not measure coping and support seeking domains. The aim of this study was to develop an instrument for the assessment of financial toxicity among radiation oncology patients that captures and integrates all the relevant domains of subjective financial distress. MATERIALS AND METHODS: The study was conducted among Head & Neck cancer (HNC) patients (age ≥18 years) who have completed the radiotherapy either as stand-alone or part of a multimodal treatment. Literature review, expert opinion, and patient interviews were used for scale item generation. The validity and underlying factor structure were evaluated by Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA). The reliability and internal consistency of the final scale was assessed using Cronbach's alpha coefficient. RESULTS: A total of 17 items were identified for scale development. The preliminary 17-item instrument was administered to 142 HNC patients. Among 142 participants, 85.9% were male and 98.6% were from rural areas. EFA was performed on 17 items and three items were removed (factor loadings <0.5). The remaining 14 items loaded onto three factors (eigenvalue >1) explaining 62.0% of the total variance. The Chi-square goodness of fit test in CFA and the values of other model fit indices, namely, RMSEA = 0.045, SRMR = 0.014, GFI = 0.92, CFI = 0.98, and TLI=0.97 indicate a good model fit suggesting the three-factor model adequately fits the data. The Cronbach's α for the final 14-item scale was 0.87 indicating excellent reliability and the Cronbach's α coefficient of all the individual 14 items was ≥0.85 (range 0.85-0.88). CONCLUSION: The SFDQ showed excellent validity and reliability. SFDQ captures and integrates all the relevant domains of financial toxicity. However, the provisional SFDQ instrument warrants further larger sample studies for validation and psychometric evaluation in different primary cancer subsites and treatment modalities from multiple cancer centers to improve the generalizability of this instrument.

Cavernous carotid artery large aneurysm treated with a new flow diverter - Xcalibur aneurysm occlusion device (AOD).

We report a case of an unruptured, symptomatic, large right cavernous internal carotid artery aneurysm successfully treated with a new balloon-expandable flow diverter - Xcalibur Aneurysm Occlusion Device (AOD). Follow up imaging performed at six months demonstrated complete exclusion of the aneurysm and regression in dimensions, resulting in resolution of mass effect and clinical improvement.