'It's just a mucocele': a case report of a massive appendiceal mucocele presenting as a left upper quadrant mass.

Tumours of the appendix are very rare tumours that can and often present with a mucocele. This is a case report highlighting the associated pathology of appendix tumours and the management of a large mucocele. Specifically, how a right hemicolectomy is very rarely needed in these cases regardless of size and local anatomical relationships and some important considerations for the practicing surgeon in the non-tertiary centre that encounters a case like this.

Robotic abdominoperineal resection, posterior vaginectomy and abdomino-lithotomy sacrectomy: technical considerations and case vignette.

When working with patients who have locally advanced rectal cancer (LARC) the ability to undertake minimally invasive procedures becomes more challenging but no less important for patient outcomes. We performed a minimally invasive approach to surgery for LARC invading the posterior vagina and sacrum. The patient was a 75-year-old lady who presented with a locally advanced rectal tumour staged T4N2 with invasion into the posterior wall of the vagina and coccyx/distal sacrum. We introduce a robotic abdominoperineal resection, posterior vaginectomy and abdomino-lithotomy sacrectomy using a purely perineal approach with no robotic adjuncts or intracorporal techniques. Final histology showed moderately differentiated adenocarcinoma invading the vagina and sacrum, ypT4b N0 TRG2 R0 and the patient entered surgical follow-up with no immediate intra- or postoperative complications. A literature review shows the need for more minimally invasive techniques when relating to major pelvic surgery and the benefits of a purely perineal approach include less expensive resource use, fewer training requirements and the ability to utilise this technique in centres that are not robotically equipped.

Impact of socioeconomic status on children and adolescent's orthodontic treatment; A Systematic Review.

BACKGROUND: Good evidence is available that socioeconomic status (SES) positively correlates with access to orthodontic treatment. There is much less literature, however, on whether socioeconomic inequities affect patients once they are in treatment. SES predicts of treatment outcomes across many health disciplines. OBJECTIVES: To determine whether a similar relationship exists with orthodontic treatment and identify, evaluate and summarise the available evidence. METHODS: Systematic review with searches of multiple databases to identify studies of children and adolescents who underwent orthodontic treatment, in which parental SES was the variable of interest, and treatment duration, treatment outcome or adherence of patients to the treatment plan were the measured outcomes of interest. Quality appraisal used CASP checklists. Data were synthesised narratively and in tables and graphs. RESULTS: Seventeen studies were included in the final review. The high level of heterogeneity between studies made it hard to draw conclusions from the data as a whole. Many studies also had several quality issues. Some evidence suggested an association between low SES and discontinuation of orthodontic treatment, and between the receipt of state subsidised care and poor appointment attendance. CONCLUSION: No strong associations can be concluded. There is a need for more high-quality studies, perhaps incorporating access and uptake variables, to capture how different socioeconomic groups interact with orthodontic care.

Pandemic Considerations on Essential Oral Health Care.

The coronavirus disease 2019 (COVID-19) pandemic revealed a lack of consensus on the concept of essential oral health care. We propose a definition of essential oral health care that includes urgent and basic oral health care to initiate a broader debate and stakeholder alignment. We argue that oral health care must be part of essential health care provided by any health system. Essential oral health care covers the most prevalent oral health problems through an agreed-on set of safe, quality, and cost-effective interventions at the individual and community level to promote and protect oral health, as well as prevent and treat common oral diseases, including appropriate rehabilitative services, thereby maintaining health, productivity, and quality of life. By default, essential oral health care does not include the full spectrum of possible interventions that contemporary dentistry can provide. On the basis of this definition, we conceptualize a layered model of essential oral health care that integrates urgent and basic oral health care, as well as advanced/specialist oral health care. Finally, we present 3 key reflections on the essentiality of oral health care. First, oral health care must be an integral component of a health care system's essential services, and by implication, oral health care personnel are part of the essential health care workforce. Second, not all dental care is essential oral health care, and not all essential care is also urgent, particularly under the specific risk conditions of the pandemic. Third, there is a need for criteria, evidence, and consensus-building processes to define which dental interventions are to be included in which category of essential oral health care. All stakeholders, including the research, academic, and clinical communities, as well as professional organizations and civil society, need to tackle this aspect in a concerted effort. Such consensus will be crucial for dentistry in view of the Sustainable Development Goal's push for universal health coverage, which must cover essential oral health care.

Vesículas rojas agrupadas en la axila / Grouped Red Vesicles in the Axilla

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Global, Regional, and National Levels and Trends in Burden of Oral Conditions from 1990 to 2017: A Systematic Analysis for the Global Burden of Disease 2017 Study.

Government and nongovernmental organizations need national and global estimates on the descriptive epidemiology of common oral conditions for policy planning and evaluation. The aim of this component of the Global Burden of Disease study was to produce estimates on prevalence, incidence, and years lived with disability for oral conditions from 1990 to 2017 by sex, age, and countries. In addition, this study reports the global socioeconomic pattern in burden of oral conditions by the standard World Bank classification of economies as well as the Global Burden of Disease Socio-demographic Index. The findings show that oral conditions remain a substantial population health challenge. Globally, there were 3.5 billion cases (95% uncertainty interval [95% UI], 3.2 to 3.7 billion) of oral conditions, of which 2.3 billion (95% UI, 2.1 to 2.5 billion) had untreated caries in permanent teeth, 796 million (95% UI, 671 to 930 million) had severe periodontitis, 532 million (95% UI, 443 to 622 million) had untreated caries in deciduous teeth, 267 million (95% UI, 235 to 300 million) had total tooth loss, and 139 million (95% UI, 133 to 146 million) had other oral conditions in 2017. Several patterns emerged when the World Bank's classification of economies and the Socio-demographic Index were used as indicators of economic development. In general, more economically developed countries have the lowest burden of untreated dental caries and severe periodontitis and the highest burden of total tooth loss. The findings offer an opportunity for policy makers to identify successful oral health strategies and strengthen them; introduce and monitor different approaches where oral diseases are increasing; plan integration of oral health in the agenda for prevention of noncommunicable diseases; and estimate the cost of providing universal coverage for dental care.

Artificial intelligence in dermatology: the "unsupervised" learning.

The potential areas of application of artificial intelligence in dermatology are ever-increasing. With the wide availability of smartphones equipped with high-resolution cameras and impressive processing powers, harnessing these capabilities using machine learning (ML) could open new prospects in the management of dermatological disorders. Du-Harpur et al. have done a commendable job reviewing the utility of artificial intelligence in dermatology in an easily understandable manner by most dermatologists1 .

Trichoscopy of primary cicatricial alopecias: an updated review.

Trichoscopy is an emerging technique for the evaluation of various hair and scalp disorders including primary cicatricial alopecias (PCAs). Early diagnosis of PCAs can lead to effective management and trichoscopy could be a useful aid during this process. Multiple studies have reported the trichoscopic features of PCAs, however, a focused review evaluating these disorders with their trichoscopic features is lacking. With the objective of evaluating the trichoscopic findings reported in the literature for various PCAs, we conducted a systematic literature search in PubMed and Embase. The search yielded 310 studies in a total of which 54 studies were included in our review. Majority of these studies originated from the Caucasian or Asian population. Through this review, we provide an overview of the frequent and specific trichoscopic findings in different PCAs with their clinical significance where applicable based on the current knowledge and identify the areas for future research.

Tricuspid valve leaflet strains in the beating ovine heart.

The tricuspid leaflets coapt during systole to facilitate proper valve function and, thus, ensure efficient transport of deoxygenated blood to the lungs. Between their open state and closed state, the leaflets undergo large deformations. Quantification of these deformations is important for our basic scientific understanding of tricuspid valve function and for diagnostic or prognostic purposes. To date, tricuspid valve leaflet strains have never been directly quantified in vivo. To fill this gap in our knowledge, we implanted four sonomicrometry crystals per tricuspid leaflet and six crystals along the tricuspid annulus in a total of five sheep. In the beating ovine hearts, we recorded crystal coordinates alongside hemodynamic data. Once recorded, we used a finite strain kinematic framework to compute the temporal evolutions of area strain, radial strain, and circumferential strain for each leaflet. We found that leaflet strains were larger in the anterior leaflet than the posterior and septal leaflets. Additionally, we found that radial strains were larger than circumferential strains. Area strains were as large as 97% in the anterior leaflet, 31% in the posterior leaflet, and 31% in the septal leaflet. These data suggest that tricuspid valve leaflet strains are significantly larger than those in the mitral valve. Should our findings be confirmed they could suggest either that the mechanobiological equilibrium of tricuspid valve resident cells is different than that of mitral valve resident cells or that the mechanotransductive apparatus between the two varies. Either phenomenon may have important implications for the development of tricuspid valve-specific surgical techniques and medical devices.

A comparison of 24 chemicals in the six-well bacterial reverse mutation assay to the standard 100-mm Petri plate bacterial reverse mutation assay in two laboratories.

The bacterial reverse mutation assay (Ames) is a fundamental genetic toxicology test, and efforts to miniaturize the regulatory GLP version are essential in assessing genotoxic liabilities earlier in the drug development pipeline. Two versions of the Ames were compared: the six-well (miniaturized) plate and the standard 100-mm plate test at two different laboratories. Of twenty-four chemicals tested, a subset of six chemicals was tested in the six-well test only and the remaining eighteen were evaluated in both versions of the test. The plate incorporation procedure was used with one Escherichia coli and four different Salmonella strains. The six-well test uses the same plating procedure and evaluation methods as the standard Ames assay in 100-mm plates, but the smaller format requires 20% of the test chemical. Additionally, the six-well test uses a limit concentration of 1000 µg/well versus the standard Petri plate test limit concentration of 5000 µg/plate. Testing across the two formats resulted in 100% concordance in overall mutagenicity judgement and 94% concordance across all tester strains and conditions. Known mutagenic positive control chemicals were correctly detected as positive in both formats. The overall conclusion is that the six-well assay results are concordant with the standard assay format in this evaluation and could be a reliable alternative.

A comparative study of central versus posterior approach for internal jugular hemodialysis catheter insertion.

Internal jugular (IJ) catheter insertion for hemodialysis (HD) is an indispensable procedure in the management of patients with renal failure. The central approach is favored over posterior approach to insert IJ catheters. There are no studies comparing the outcomes between the two approaches. The aim of this study was to compare central approach with posterior approach for IJ HD catheter insertion and to analyze various outcomes like procedure-related complication rates, catheter insertion failure rates, interruptions during dialysis due to blood flow obstruction and catheter infection rates between the two methods among patients receiving HD. All patients requiring IJ HD catheter insertion during a 1-month period were randomly assigned to undergo catheter insertion via either conventional central approach or posterior approach. Patients were followed-up till the removal of the catheter. Among 104 patients included in the study, 54 were assigned to the central approach group and 50 to the posterior approach group. The central approach group had higher rate of procedure-related complications (14.81% vs. 6%, P = 0.04). Catheter insertion failure rates were marginally higher in posterior approach group (20% vs. 12.96%, P = 0.07). One or more instance of interruption during HD due to obstruction in blood flow was more common in posterior approach (46% vs. 9.25%, P < 0.01). Catheter infection rates were similar between the two groups; 16.66% (n = 9) in central group vs. 14% (n = 7) in posterior group. Posterior approach is a reasonable alternative to conventional central approach in IJ cannulation for HD catheter. It is, however, associated with a significantly high rate of interruption in HD blood flow and catheter insertion failure rates. The posterior approach can be used in patients with local exit site infection or in failed attempts to cannulate IJ vein via the conventional central approach.

Incidence and profile of C3 Glomerulopathy: A single center study.

C3 glomerulopathy has recently been described as a distinct entity. The underlying mechanism is unregulated activation of the alternate pathway of the complement system. The most common presentation is with an acute nephritic syndrome. The diagnosis is made on immunofluoroscence by the presence of isolated or dominant C3 staining. In this retrospective study, renal biopsy data were collected from 2010 to 2013 patients with C3 glomerulopathy identified and their clinical and biochemical parameters analyzed. Out of 514 biopsies available for analysis, the incidence of C3 glomerulopathy was 1.16% (n = 6). The mean age of the presentation was 26 years and the average estimated glomerular filtration rate was 30.65 ml/min/1.73 m(2). The most common histopathological pattern was membranoproliferative glomerulonephritis (n = 4).

Periodic Peritoneal Dialysis in End Stage Renal Disease: Is it Still Relevant? A Single Center Study from India.

BACKGROUND: High cost of maintenance hemodialysis (HD) and continuous ambulatory peritoneal dialysis (PD) in India has made renal replacement therapy out of reach of many patients with end stage renal disease (ESRD). Repeated puncture PD although inferior to HD biochemically, is easily and freely available across Rajasthan, India, and is simple to perform, and does not require sophisticated machines, thus making it an attractive option for dialysis for ESRD. AIM: To analyze the outcomes of periodic PD in patients with ESRD requiring dialysis support. SUBJECTS AND METHODS: A prospective study analyzing the data of patients who underwent PD between August 2010 and January 2013 in Sawai Man Singh Hospital, Jaipur, India was conducted. Patients were divided into three groups based on the time period between first and second session of PD. Detailed demographic and clinical data during the study period were collected along with PD related complications. The main outcome studied was technique survival 1 year post initiation of PD. RESULTS: 234 patients received an initial session of PD, of which 174 had a good response and were included in the study. 19 patients received the second PD within 7 days of first (Group 1), 45 patients within 8-14 days (Group 2) and 110 patients within 15-21 days (Group 3). The overall 1 year technique survival was 68.4% (91/133), with a rate of 50% (5/10), 56.8% (21/37), and 75.6% (65/86) for Group 1, Group 2, and Group 3, respectively. The time duration between first and second PD proved to be reliable indicator of the subsequent response, with a technique survival rate significantly lower in Group 1 patients compared to Groups 2 and 3 (P = 0.04). Median dialysis free days were 11, 16 and 21 days in Group 1, Group 2, and Group 3, respectively. Peritonitis rate observed was 2.1% (49/2261) during the study period. CONCLUSION: Periodic PD is a simple, safe and cheap procedure, which can be considered as used as a palliative measure in terminal uremia in underprivileged areas.