Clinico-epidemiological presentations and management of Nipah virus infection during the outbreak in Kozhikode district, Kerala state, India 2023.

India experienced its sixth Nipah virus (NiV) outbreak in September 2023 in the Kozhikode district of Kerala state. The NiV is primarily transmitted by spillover events from infected bats followed by human-to-human transmission. The clinical specimens were screened using real-time RT-PCR, and positive specimens were further characterized using next-generation sequencing. We describe here an in-depth clinical presentation and management of NiV-confirmed cases and outbreak containment activities. The current outbreak reported a total of six cases with two deaths, with a case fatality ratio of 33.33%. The cases had a mixed presentation of acute respiratory distress syndrome and encephalitis syndrome. Fever was a persistent presentation in all the cases. The Nipah viral RNA was detected in clinical specimens until the post-onset day of illness (POD) 14, with viral load in the range of 1.7-3.3 × 104 viral RNA copies/mL. The genomic analysis showed that the sequences from the current outbreak clustered into the Indian clade similar to the 2018 and 2019 outbreaks. This study highlights the vigilance of the health system to detect and effectively manage the clustering of cases with clinical presentations similar to NiV, which led to early detection and containment activities.

An in vitro comparison of calcium ions release and diffusion ability of calcium hydroxide-based intracanal medicament in combination with three different vehicles like propolis, chitosan, and propylene glycol.

Context: Calcium hydroxide, which is an intracanal medicament, is widely used in endodontics. Improvements can be made to its effectiveness, as calcium hydroxide is dependent on the vehicle. Aim: The study aims to compare and evaluate the release and diffusion ability of calcium hydroxide when mixed with - propolis, chitosan, and propylene glycol. Methods: For this study, 33 single-rooted extracted premolar teeth have been decoronated. After the working length and enlargement of the canals had been established, different preparations of calcium hydroxide with vehicles such as propolis, chitosan, and propylene glycol were loaded into the canals. Atomic absorption spectrophotometry was used to analyze the release of calcium ions in three groups, while a digital pH meter was used to determine an acid change. Results: Atomic absorption spectrophotometry showed sustained releases of calcium ions and the digital pH meter showed increased diffusion capacity in the propylene glycol paste group in comparison to the other two groups. Conclusion: Propylene glycol vehicle made it easier to enter calcium hydroxide into the dentinal tubules.

Etiologic Spectrum of Pediatric-Onset Leukodystrophies and Genetic Leukoencephalopathies: The Five-Year Experience of a Tertiary Care Center in Southern India.

BACKGROUND: White matter (WM) disorders with a genetic etiology are classified as leukodystrophies (LDs) and genetic leukoencephalopathies (GLEs). There are very few studies pertaining to the etiologic spectrum of these disorders in the Asian Indian population. METHODS: This study was conducted over a period of five years from January 2016 to December 2020, in the medical genetics department of a tertiary care hospital in southern India. A total of 107 patients up to age 18 years, with a diagnosis of a genetic WM disorder confirmed by molecular genetic testing and/or metabolic testing, were included in the study and categorized into LD or GLE group as per the classification suggested by the Global Leukodystrophy Initiative consortium in 2015. RESULTS: Forty-one patients were diagnosed to have LDs, and 66 patients had GLEs. The two most common LDs were metachromatic LD (16 patients) and X-linked adrenoleukodystrophy (seven patients). In the GLE group, lysosomal storage disorders were the most common (40 patients) followed by mitochondrial disorders (nine patients), with other metabolic disorders and miscellaneous conditions making up the rest. The clinical presentations, neuroimaging findings, and mutation spectrum of the patients in our cohort are discussed. CONCLUSIONS: This is one of the largest cohorts of genetic WM disorders reported till date from the Asian Indian population. The etiologies and clinical presentations identified in our study cohort are similar to those found in other Indian studies as well as in studies based on other populations from different parts of the world.

First detection of Varicella Zoster Virus clade 9 cases in India during mpox surveillance.

BACKGROUND: The multi-country mpox outbreak across the globe has led to the systematic surveillance of mpox cases in India. During the surveillance of mpox, we encountered cases of Varicella Zoster Virus (VZV) in suspected mpox cases amongst children & adults. This study focused on the genomic characterization of VZV in India. METHODS: A total of 331 mpox suspected cases were tested for VZV through real-time PCR, and the positive samples were subjected to next-generation sequencing to retrieve the whole genome of VZV using CLC genomics software. Phylogenetic analysis has been done in MEGA 11.0 software to identify circulating clades. RESULT: Of the 331 suspected cases, 28 cases with vesicular rashes were found to be positive for VZV. The maximum genome could be retrieved from the clinical specimens of 16 cases with coverage greater than 98% when mapped with reference strain Dumas (NC 001348). The phylogenetic analyses of these sequences determined the circulation of clades 1, 5, and 9 in India. Further, the sequence analysis demonstrated non-synonymous single nucleotide polymorphism (SNPs) among specific ORF of VZV including ORF 14, ORF 22, ORF 36, ORF 37 and ORF 51. Although clade 1 and 5 has been reported earlier, the circulation of clade 9 of VZV has been determined for the first time in India. CONCLUSION: Although the circulation of different clades of VZV was reported from India, the presence of clade 9 was detected for the first time during the mpox surveillance.

Impact of disability in the quality of life of patients with traumatic brachial plexus injuries based on a questionnaire survey in a tertiary center in South India.

Objectives: The aim of the study was to assess the disability and its impact in the health-related quality of life (HRQOL) and its various domains in patients with traumatic brachial plexus injury (TBPI). Materials and Methods: A descriptive cross-sectional questionnaire survey was conducted on 41 patients with TBPI in a tertiary care center in South India. The assessment of disability and HRQOL was done as per the guidelines of the Gazette of India (2001) and WHO BREF questionnaire, respectively. The association between disability and HRQOL was determined using Chi-square test. Results: All patients were males in the age group 16-60 years (mean age 36.8 ± 14.4 years). Etiology was road traffic accident in 90.2% of cases. About 51.2% had pan-plexus injuries and 53.7% had their dominant limb affected. The mean total disability was 80.39 ± 13.86% and the mean total HRQOL score was 188.46 ± 83.44 out of 400. It was found that disability due to TBPI significantly reduced the HRQOL (Fisher's exact P = 0.005) and the psychological domain was the most significantly affected (P = 0.017, Kruskal-Wallis test). Pan-plexus injuries with an involvement of dominant upper limb had significant impact in the HRQOL. Twenty-one patients (51.2%) complained of neuropathic pain and they had a significantly reduced quality of life (QOL) (mean QOL = 23.3, P < 0.001). It was also found that productive age group (26-55 years) had a significantly reduced QOL as compared to the extreme age groups (P = 0.000). Unemployed patients had a significantly reduced QOL as compared to those with permanent/temporary job (P = 0.024). Marital status was found to have no significant relationship with the total HRQOL (P = 0.647). Those belonging to the poor socioeconomic strata (below poverty line) had poor HRQOL as compared to those above poverty line and the relationship was found to be significant (P = 0.000). Conclusion: TBPIs significantly affected all domains of QOL, especially in unemployed patients in the productive age group in the poor socioeconomic strata. The pan-brachial plexus involvement of dominant upper limb and associated neuropathic pain were the most important factors which negatively affected the QOL. Among the codomains of the QOL, psychological domain was the most significantly affected irrespective of the severity of the injury.

Genomic Characterization of Mosquito Isolates of Chikungunya Virus (Outbreak Strains 2022) Using Next-Generation Sequencing.

Background: A massive outbreak of dengue-like illness was reported from Pune district of Maharashtra, India during May-June 2022. Isolation and characterization of the etiological agent at genomic level for possible mutations that led to higher transmissibility is the topic of the study. Methods: Entomological investigations were carried out by ICMR-National Institute of Virology (Pune, India); Aedes aegypti mosquitoes were collected and processed for virus detection by molecular techniques. Positive mosquito pools were processed for virus isolation in cell culture. Sanger sequencing and whole-genome sequencing (WGS) using Oxford Nanopore Technology platform were used for genomic characterization. Results: Reverse transcriptase RT-PCR and qRT-PCR analysis detected chikungunya virus (CHIKV) in mosquito samples. Six CHIKV isolates were obtained. WGS revealed four nonsynonymous mutations in the structural polyprotein region, and five in the nonstructural polyprotein encoding region when compared with Yawat-2000 and Shivane-2016 strains. Sixty-four nucleotide changes in the nonstructural polyprotein region and 35 in the structural polyprotein region were detected. One isolate had an exclusive amino acid change, T1123I, in the nsP2 (protease) region. Conclusion: Abundant Ae. aegypti breeding and detection of CHIKV RNA in mosquitoes confirmed it as a chikungunya outbreak. Novel mutations detected in the epidemic strain warrants investigations to address their role in disease severity, transmission, and fitness.

Hole-retaining Lobeplasty for Type I Ear Lobe Deformities.

Background: The aesthetic aspect of Type I incomplete split ear lobe is underestimated. Most of the hole-retaining techniques described for large and split ear lobes are difficult to perform in Type I deformity. Aim: (1) To conduct a pilot study based on the postoperative review of the cases of Type I ear lobe deformities surgically managed with hole-retaining lobeplasty in a tertiary care centre in South India.(2) To assess the postoperative outcome of the hole retaining lobeplasty based on the Global aesthetic improvement scale and Patient satisfaction in Likert scale. Materials and Methods: A pilot study of hole-retaining lobeplasty technique was done based on the postoperative review of 6 patients with bilateral type1 incomplete split ear lobes who were operated in our institution with the same. The results were validated based on descriptive statistics and postoperative outcomes using GAIS score and Patient Satisfaction Score measured in a Likert scale. Results: None of the patients had any postoperative complications. At six months follow up, all patients had centrally placed, circular ear holes, well settled support flap and rounded lobe contour with an average GAIS score of 4.83 ± 0.38. All the patients were satisfied with their newly created ear hole and lobe contour, with an average Patient Satisfaction Score of 4.8 ± 0.4. Conclusion: Hole- retaining lobeplasty is a simple, cost effective, single staged, day-case procedure for repair of Type I large ear holes, that can be easily duplicated by young plastic surgeons with is aesthetically better, circular and centrally placed ear hole with a more rounded ear lobe with support to prevent recurrence.

"Relax City Homecare team; protocols are ready for you" - A Quality Improvement Project Conducted on Behalf of the City Homecare Unit Team at the Trivandrum Institute of Palliative Sciences.

CONTEXT: The city homecare unit (CHU) of the Trivandrum Institute of Palliative Sciences was dissatisfied with the quality of care provided to their patient population. AIMS: This study aims to improve the average satisfaction score of CHU during their daily homecare services. SETTINGS AND DESIGN: The improvement project for the CHU activities was conducted with a prospective plan-do-study-act design, with stepwise application of improvement tools. MATERIALS AND METHODS: The A3 quality improvement (QI) methodology, which uses tools for (i) analysing contributors (process mapping, cause-effect diagram); (ii) to derive key drivers (Pareto chart) and (iii) for measuring impact of interventions and sustainability (annotated run chart) was applied. The project was conducted as a mentored activity of the PC-PAICE program. The team's weekly average satisfaction score was recorded prospectively as the outcome parameter, with 0 representing total dissatisfaction and 10 representing total satisfaction. Accuracy of triaging and appropriateness of registration process were the process parameters selected. These were recorded as run charts across the project period of 9 months. ANALYSIS AND RESULTS: The cause-effect tool and the impact effort tool were used to analyse the mapped CHU processes. Even though we identified 22 contributors to the problem, eight of them were found to be significant. Key drivers were determined based on these eight and applied to the CHU processes. Over the project period, the satisfaction scores of the CHU improved significantly from 5.82 to 7.6 that is, satisfaction levels were high on most days. The triaging and registration goals were achieved. The team also built its own capacity for QI. CONCLUSION: The application of the A3 methodology simplified and streamlined efforts and achieved the quality goal for the CHU team.

Is There a Need to Increase Palatal Root Torque of Upper Incisors in Lingual Appliance? A Finite Element Analysis.

OBJECTIVES: To understand the effect of the biomechanical differences by assessing pre and post retraction torque, amount of retraction and arch width changes in both techniques. METHODOLOGY: A three-dimensional geometric model of maxilla with all upper teeth except first premolar was generated based on computed tomography radiograph of a dry skull using the computer program Hypermesh. 13.0. Virtual models of 0.022 "Roth labial brackets and 0.018 "ORMCO 7th generation lingual brackets; and for labial brackets 0.019 × 0.025" SS archwire and for lingual brackets 0.016 × 0.024" SS archwire were constructed. Sliding mechanics was used during en-masse retraction by applying a 300 g distal force on both sides of the dentition from canine to the second premolar brackets in the labial and lingual simulation. The finite element program ANSYS 12.1 was used to calculate the torque and displacement. RESULTS: The results stipulated that in transverse direction there was lingual tipping of anteriors, mild buccal flaring in second premolars and first molars and lingual tipping in second molar in lingual appliance. In the sagittal plane, the greater distal movement of posteriors and an up-righting tendency of molars were observed in lingual appliance. Extrusion of anterior teeth were observed in both appliances. Regarding the premolars and first molars, labial movements and relative intrusion were observed in lingual appliance compared to labial appliance. CONCLUSION: In lingual treatment, it is crucial to increase the lingual root torque. The amount of retraction and arch widening were more in lingual appliance compared to labial technique.

Moulded Osteomyofascial Pedicled Split (MOPS) Craniotomy Flap in Reconstruction of Anterior Cranial Fossa Defects: Pilot Study of a Novel Technique.

INTRODUCTION: Anterior cranial fossa (ACF) defects still remains a reconstructive challenge to neurosurgeons due to the difficult location, inaccessibility, and unfavorable vascular anatomy. Usual reconstructive methods reported complications such as recurrent cerebrospinal fluid leak due to bone resorption and tissue breakdown. This is mainly due to the avascularity of the bone graft and inability to provide bony structural support for the skull base. An ideal reconstructive modality should provide a rigid bony support to prevent brain herniation as well as ensure a water tight barrier between sinonasal tract and intracranial compartment. METHODOLOGY: Hence, we thought of a novel technique of taking the outer table of the primary craniotomy flap with its intact myofascial pedicle and moulded it with multiple osteotomies (moulded osteomyofascial pedicled split (MOPS) craniotomy flap) to fit into uneven ACF defects. Advantages of our flap include (1) It is a pedicled vascularized bone flap. (2) It is taken from primary craniotomy flap; hence, no separate craniotomy is required. (3) The inner table is intact and leaves no secondary calvarial bone defect on the donor site. (4) Osteoplastic flap is moulded to fit into the defect, thus providing good contour. RESULTS: MOPS flap was used in five patients with ACF defects due to varied etiologies such as encephalocele defect, frontal mucocele, skull base meningioma, and complex naso ethmoid fracture. Age of the patients included in the study varied from 21 to 60 years. Male:female ratio was 4:1. ACF defects were reconstructed using MOPS flap in all cases. There were no postoperative complications and 1-month postoperative computerized tomography scan showed no evidence of bone resorption with acceptable cosmesis. CONCLUSION: MOPS craniotomy flap provides a novel, easily mastered, and cost-effective technique with minimal complication in reconstruction of complex ACF defects with acceptable esthetic and functional outcome.

Autologous emulsified fat injection for rejuvenation of scars: A prospective observational study.

BACKGROUND: The skin rejuvenation potential of the autologous emulsified nanofat was studied by Tonnard et al. in 2013. This property is due to the viable adipose-derived stem cells present in the nanofat; although, there are no viable adipocytes. The aim of this study was to determine the aesthetic outcome of autologous emulsified nanofat injection in scars using a standardised and validated Patient Observer Scar Assessment Scale (POSAS) and photographs. MATERIALS AND METHODS: A total of 34 patients with scars of varied aetiologies were included in the study as per inclusion criteria. Pre-operative scoring of the scars with the POSAS scale was done, and photographs were taken. Fat aspiration was done from the lower abdominal wall using syringe liposuction under tumescent anaesthesia. The lipoaspirate was mechanically emulsified, filtered and injected intralesionally into the scar using 26G needle and insulin syringe. Post-operative scar reassessment was done at 3 months with the POSAS scale score and photographs. The improvement in scar characteristics and symptoms were tested statistically using a paired t-test. Pre-operative and post-operative photographic comparison was also done. RESULTS: Out of the 34 patients included in the study, male:female ratio was 22:12. Majority (79.4%) had post-traumatic facial scars. On statistical analysis, there was statistically significant improvement in symptoms such as pain (P = 0.001), itching (P = 0.001), stiffness (P = 0.001), thickness (P = 0.001), colour (P = 0.001), irregularity (P = 0.001) and scar characteristics such as vascularity (P = 0.005), relief (P = 0.001), pliability (P = 0.001), thickness (P = 0.001) and pigmentation (P = 0.001) 3 months after injection. The photographic comparison also showed good aesthetic outcome. CONCLUSION: Autologous emulsified nanofat injection is effective in improving the scar characteristics as well as symptoms and helps in scar rejuvenation.

Construction of infectious cDNA clone derived from a classical swine fever virus field isolate in BAC vector using in vitro overlap extension PCR and recombination.

To develop reverse genetics system of RNA viruses, cloning of full-length viral genome is required which is often challenging due to many steps involved. In this study, we report cloning of full-length cDNA from an Indian field isolate (CSFV/IVRI/VB-131) of classical swine fever virus (CSFV) using in vitro overlap extension PCR and recombination which drastically reduced the number of cloning steps. The genome of CSFV was amplified in six overlapping cDNA fragments, linked by overlap extension PCR and cloned in a bacterial artificial chromosome (BAC) vector using in vitro recombination method to generate full-length cDNA clone. The full-length CSFV cDNA clone was found stable in E. coli Stellar and DH10B cells. The full-length RNA was transcribed in vitro using T7 RNA polymerase and transfected in PK15 cells using Neon-tip electroporator to rescue infectious CSFV. The progeny CSFV was propagated in PK15 cells and found indistinguishable from the parent virus. The expression of CSFV proteins were detected in cytoplasm of PK15 cells infected with progeny CSFV at 72 h post-infection. We concluded that the in vitro overlap extension PCR and recombination method is useful to construct stable full-length cDNA clone of RNA virus in BAC vector.