1.Ruptured mirror DACA aneurysm: A rare case report and review of literature
Deepak Kumar SINGH ; Prevesh Kumar SHARMA ; Arun Kumar SINGH ; Vipin Kumar CHAND
Journal of Cerebrovascular and Endovascular Neurosurgery 2023;25(3):340-346
Bilateral distal anterior cerebral artery (DACA) aneurysms also called “kissing aneurysms” or “mirror aneurysm” are extremely rare, accounting for only 0.2% of all intracranial aneurysms. There have only been a few examples of mirror DACA aneurysms reported in the literature. Here, we report a rare case of mirror DACA aneurysm in a middle aged female with its successful clipping. Patient was admitted with severe headache and altered sensorium. Computed tomography (CT) head was suggestive of anterior inter-hemispheric hematoma. Digital subtraction angiography (DSA) was done which was suggestive of two distal anterior cerebral artery aneurysms located at same anatomical position. It was treated through microsurgical clipping. Mirror image DACA aneurysms are rare occurrence. All patients with ruptured DACA aneurysms should have angiography with 3D reconstruction studies. This aids in determining the aneurysm’s morphology and planning treatment accordingly.
2.Outcome of surgical treatment of type IV capitellum fractures in adults.
Ajay Pal SINGH ; Ish Kumar DHAMMI ; Vipul GARG ; Arun Pal SINGH
Chinese Journal of Traumatology 2012;15(4):201-205
OBJECTIVEFractures of the capitellum and trochlea constitute less than 1% of all elbow fractures and a shear fracture involving the capitellum and extending medially into most of the trochlea is rarely reported. Type IV capitellum fracture is still controversial in regard to its radiographic appearance, surgical approach and osteosynthesis. We report 10 cases of type IV capitellum fracture with a view to elucidating its clinical features and treatment outcome.
METHODSWe treated 10 patients of type IV capitellum fracture with a mean age of 32 years. A uniform surgical approach and postoperative rehabilitation were followed.
RESULTSNine patients presented to us after a mean of 4 days of injury and one patient was nonunion after 6 months of injury who had been treated conservatively by a bone setter. Double arc sign was absent in 6 cases. Intraoperatively 6 capitellotrochlear fragments were devoid of soft tissue attachments. By Mayo Elbow Performance Score evaluation, 7 patients got excellent, 2 good and 1 fair results. One patient with associated elbow dislocation developed heterotopic ossification. There was no case of avascular necrosis, osteoarthrosis or fixation failures.
CONCLUSIONSType IV capitellum fractures are rare and belong to complex articular injuries. A good functional outcome can only be achieved with open reduction and stable internal fixation followed by early mobilization. Preoperative radiographic assessment and computed tomography help surgeons in choosing the right surgical approach and implants. Good surgical technique and stable internal fixation are the keys to early mobilization and good functional outcome.
Adult ; Elbow Joint ; injuries ; Fracture Fixation, Internal ; Fractures, Bone ; Humans ; Joint Dislocations ; Treatment Outcome
3.Nonunion of coronal shear fracture of femoral condyle.
Ajay-Pal SINGH ; Ish-Kumar DHAMMI ; Raju VAISHYA ; Anil-Kumar JAIN ; Arun-Pal SINGH ; Prashant MODI
Chinese Journal of Traumatology 2011;14(3):143-146
Isolated coronal fractures of femoral condyle are rare in adults and nonunion of Hoffa fracture is reported only a few times in the literature. We analyzed six cases of nonunion of Hoffa fractures over a period of three years. Three patients were treated conservatively and three patients had fixation failures. Delay of presentation was 2 months to one year. Treatment protocol consisted of open reduction, excision of pseudoarthrosis, bone grafting and internal fixation along with knee arthrolysis. Union was achieved in all patients at mean 16 weeks. The treatment of nonunion of Hoffa fractures requires careful preoperative planning and meticulous surgical technique. The literature regarding the controversies in fracture management and surgical technique are reviewed.
Adolescent
;
Adult
;
Female
;
Femoral Fractures
;
surgery
;
Fractures, Ununited
;
surgery
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
4.Cytokines Expression Profile and Kinetics of Peste des petits ruminants Virus Antigen and Antibody in Infected and Vaccinated Goats
Patel Arun ; Rajak Kishor Kaushal ; Balamurugan Vinayagamurthy ; Sen Arnab ; Sudhakar Bhusan Shashi ; Bhanuprakash Veerakyathappa ; Singh Kumar Raj ; Pandey Bihari Awadh
Virologica Sinica 2012;27(4):265-271
The present study deals with the co-ordination of cytokine(IL-4 and IFN-γ) expression and kinetics of peste des petits ruminants(PPR) virus antigen and antibody in PPRV infected and vaccinated goats.The infected animals exhibited mixed cytokine(both TH1 and TH2) responses in the initial phase of the disease.The infected and dead goats had increased IFN-γ response before their death; while IL-4 remained at the base level.The cytokine expression in recovered animals was almost similar to that of vaccinated ones,where a unique biphasic response of IL-4 expression was observed with an up-regulation of IFN-γ on 7th days post vaccination(dpv).Analysis of PPR virus antigen and antibody kinetics in different components of blood from infected and vaccinated animals revealed that the PPR virus antigen load was highest in plasma followed by serum and blood of the infected animals,whereas vaccinated animals showed only marginal positivity on 9th dpv.The antibody titer was high in serum followed by plasma and blood in both vaccinated and infected animals.Therefore,it is inferred that the presence of antigen and antibody were significant with the expression of cytokine,and that a decreased response of IL-4 was noticed during intermediate phase of the disease i.e.,7 to 12th days post infection(dpi).This indicates the ability to mount a functional TH2 response after 14th dpi could be a critical determinant in deciding the survival of the PPR infected animal.
5.Mapping of Brain Activations to Rectal Balloon Distension Stimuli in Male Patients with Irritable Bowel Syndrome Using Functional Magnetic Resonance Imaging.
Anupam GULERIA ; Arun KARYAMPUDI ; Rajan SINGH ; Chunni L KHETRAPAL ; Abhai VERMA ; Uday C GHOSHAL ; Dinesh KUMAR
Journal of Neurogastroenterology and Motility 2017;23(3):415-427
BACKGROUND/AIMS: Irritable bowel syndrome (IBS) is associated with exaggerated cerebral response including emotional processing following visceral stimulation; though data on this issue is available in female IBS patients, it is scanty among males. Hence, we aimed to study brain response of male IBS patients following rectal balloon distension as compared to healthy controls using functional magnetic resonance imaging (fMRI). Data between diarrhea and constipation predominant IBS (IBS-D and IBS-C) were also compared. METHODS: Rectal balloon distension threshold was assessed in 20 male IBS patients (10 IBS-C and 10 IBS-D) and 10 age-matched male healthy controls. Subsequently, fMRI on all the participants was performed at their respective rectal pain threshold. The fMRI data were analysed using the Statistical Parametric Mapping software. RESULTS: IBS patients showed greater cerebral activations in insula, middle temporal gyrus, and cerebellum in the left hemisphere compared to healthy controls. Neural activation was found in bilateral precuneus/superior parietal lobules in controls but not in patients with IBS. The brain activation differed among IBS-C and IBS-D patients; while the right mid-cingulate cortex was activated in IBS-C, the left inferior orbito-frontal cortex, left calcarine, and bilateral fusiform gyri were activated among patients with IBS-D following rectal balloon distension. CONCLUSIONS: Brain response to rectal balloon distension differed among male patients with IBS and controls and among patients with IBS-C and IBS-D. Differential activation among patients with IBS-C and IBS-D was seen in the brain regions controlling affective motivation, homeostatic emotions, and autonomic responses to pain.
Brain*
;
Cerebellum
;
Constipation
;
Diarrhea
;
Female
;
Humans
;
Irritable Bowel Syndrome*
;
Magnetic Resonance Imaging*
;
Male*
;
Motivation
;
Pain Threshold
;
Parietal Lobe
;
Temporal Lobe
6.Von Hippel-Lindau Syndrome: Demonstration of Entire Disease Spectrum with 68Ga-DOTANOC PET-CT.
Punit SHARMA ; Varun Singh DHULL ; Chandrasekhar BAL ; Arun MALHOTRA ; Rakesh KUMAR
Korean Journal of Radiology 2014;15(1):169-172
Von Hippel-Lindau (VHL) syndrome is a rare neoplastic disorder characterized by central nervous system (CNS) and visceral tumors. We here present 68Ga-labelled [1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid]-1-Nal3-Octreotide positron emission tomography computed tomography findings in a 52 year old female with VHL syndrome, demonstrating both CNS and visceral tumors.
Brain Diseases/radionuclide imaging
;
Female
;
Humans
;
Kidney Diseases/radionuclide imaging
;
Liver Diseases/radionuclide imaging
;
Middle Aged
;
Multimodal Imaging/*methods
;
Organometallic Compounds/diagnostic use
;
Pancreatic Diseases/radionuclide imaging
;
Positron-Emission Tomography/*methods
;
Tomography, X-Ray Computed/*methods
;
von Hippel-Lindau Disease/*radionuclide imaging
7.Rhino-orbito-cerebral Mucormycosis: Etiopathology, Clinical Features, Outcome, and the Factors Associated with Outcome
Amit Kumar DEB ; Rakesh SINGH ; Subashini KALIAPERUMAL ; Arun ALEXANDER ; Tanmay GOKHALE ; Sandip SARKAR
Korean Journal of Ophthalmology 2022;36(4):356-365
Purpose:
Mucormycosis is a multisystemic, aggressive, and an opportunistic fungal infection. The most common type is rhino-orbito-cerebral mucormycosis (ROCM) accounting for almost 40% of the cases. In this study, we analyzed the etiopathology, clinical features, treatment outcome, and the factors associated with outcome in ROCM.
Methods:
Case records of 52 patients of ROCM were analyzed. Clinical parameters, laboratory parameters, imaging findings, treatment regime, and treatment outcome details were retrieved from each case record. The outcome measures were evaluated as treatment success and treatment failure. Univariate and logistic regression analyses were performed to identify factors associated with treatment outcome.
Results:
On univariate analysis, factors associated with poor treatment outcome were uncontrolled blood sugar, blood urea, diabetic ketoacidosis, duration of ocular symptoms, no perception of light at presentation, ptosis, conjunctival chemosis, relative afferent pupillary defect, two or more sinus involvement, bony erosion of orbital wall, intracranial extension, intraconal invasion, etc. On subsequent logistic regression analysis, factors that maintained significant association with poor treatment outcome were uncontrolled blood sugar (adjusted odds ratio [aOR], 1.17; p = 0.018), no perception of light at presentation (aOR, 10.67; p = .006), ptosis at presentation (aOR, 3.90; p = 0.03), conjunctival chemosis (aOR, 7.11; p = 0.024), relative afferent pupillary defect (aOR, 10.60, p = 0.01), central retinal artery occlusion at presentation (aOR, 3.54; p = 0.021) and two or more sinus involvement (aOR, 4.90; p = 0.009).
Conclusions
The current study identified newer factors in the form of presenting ocular and radiological features as predictors for aggressive systemic disease and poor treatment outcome. Future prospective studies are, however, needed to substantiate these associations.
8.Synergistic effects of methyl 2-cyano-3,11-dioxo-18beta-olean-1,-12-dien-30-oate and erlotinib on erlotinib-resistant non-small cell lung cancer cells
Nottingham EBONY ; Mazzio ELIZABETH ; Surapaneni Kumar SUNIL ; Kutlehria SHALLU ; Mondal ARINDAM ; Badisa RAMESH ; Safe STEPHEN ; K.Rishi ARUN ; Singh MANDIP
Journal of Pharmaceutical Analysis 2021;11(6):799-807
Non-small cell lung cancer (NSCLC) is often characterized by an underlying mutation in the epidermal growth factor receptor (EGFR),contributing to aggressive metastatic disease.Methyl 2-cyano-3,11-dioxo-18beta-olean-1,12-dien-30-oate (CDODA-Me),a glycyrrhetinic acid derivative,reportedly improves the therapeutic response to erlotinib (ERL),an EGFR tyrosine kinase inhibitor.In the present study,we performed a series of studies to demonstrate the efficacy of CDODA-Me (2 μM) in sensitizing HCC827R(ERL-resistant) cells to ERL.Herein,we first established the selectivity of ERL-induced drug resistance in the HCC827R cells,which was sensitized when ERL was combined with CDODA-Me (2 μ.M),shifting the IC5o from 23.48 μM to 5.46 μM.Subsequently,whole transcriptomic microarray expression data demonstrated that the combination of ERL + CDODA-Me elicited 210 downregulated genes (0.44% of the whole transcriptome (WT)) and 174 upregulated genes (0.36% of the WT),of which approximately 80%were unique to the ERL + CDODA-Me group.Synergistic effects centered on losses to cell cycle pro-gression transcripts,a reduction of minichromosome maintenance complex components (MCM2-7),all key components of the Cdc45·MCM2-7GINS (CMG) complex,and replicative helicases;these effects were tantamount to the upregulation of processes associated with the nuclear factor erythroid 2 like 2 translational response to oxidative stress,including sulfiredoxin 1,heme oxygenase 1,and stress-induced growth inhibitor 1.Collectively,these findings indicate that the synergistic therapeutic effects of ERL +CDODA-Me on resistant NSCLC cells are mediated via the inhibition of mitosis and induction of oxidative stress.