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Τετάρτη 25 Οκτωβρίου 2017

Corrected Cephalometric Analysis to Determine the Distance and Vector of Distraction Osteogenesis for Syndromic Craniosynostosis

imageBackground: The purpose of this study was to confirm the utility of a corrected cephalometric analysis to facilitate the planning of distraction osteogenesis with Le Fort III osteotomy for syndromic craniosynostosis. Methods: This prospective study involved 4 male and 2 female patients (mean patient age, 8 years 9 months; age range, 4 years 6 months to 13 years 2 months) with Crouzon syndrome who were treated with Le Fort III maxillary distraction using our previously described system of analysis of a corrected cephalogram and who underwent clinical follow-up. Lateral cephalograms were obtained immediately after device removal. Results: Distraction of orbitale moved the vector downward to the adult profile, but there was slightly less elongation than the adult profile for the distraction distance. The desired and real mean angles after distraction of point A were 29.2 ± 7.9° and 6.1 ± 8.5°, respectively, and the desired and the real mean distances after distraction of point A were 30.6 ± 12.7 mm and 29.4 ± 4.1 mm, respectively. Conclusions: Using the corrected cephalometric analysis, the distance and vector of distraction osteogenesis with Le Fort III osteotomy could be determined in patients with syndromic craniosynostosis. The distraction system brought the patients' facial bones to the planned position using controlling devices.

Capturing Plastic Surgery on Film—Making Reconstruction Visible

imageSummary: The Swiss Plastic Surgery Association (http://ift.tt/2jFDI9U) decided to produce a corporate video to illustrate the concept of "plastic surgery of confidence" to the public. We show the diversity of specializations and the vast range of tasks that surgeons passionately handle day in and day out. We wanted to convey 2 main messages: first, that plastic surgery is more than just cosmetic surgery, and second, that plastic surgery in Switzerland is synonymous with quality and confidence. We selected 17 topics that we felt had good filmic potential and would best explain to the public what plastic surgery is about. This included the selection of appropriate patients, experts, and locations from all over the country. We thought it crucial to show the initial preoperative situation, as only in this case would the achievement of reconstruction be evident and comprehensive to the layman audience. The actual production was filmed in 5 different locations and took 5 days of shooting. We recorded 17 surgeons, 9 patients, and about 30 voluntary background actors. From 23 hours of footage, we created a 7 minute, 22 second corporate video, recorded in 3 of the Swiss national languages. The video was presented to the public online in June 2016, on the same day as the National Open Day of Plastic Surgery in Switzerland. The video is available online. We evaluated the impact of the video using a questionnaire for lay people and observed that it could substantially improve the perception of our specialty, especially regarding the reconstructive aspect. We feel that a freely available corporate video is a very useful means to promote plastic surgery and help patients better understand what it is all about.

Autoimmune Syndrome Induced by Adjuvants (ASIA) after Silicone Breast Augmentation Surgery

imageSummary: Generally, the main complications of silicone implantation are local symptoms. However, some patients develop late-onset systemic symptoms often associated with a rare form of hyperactive immune response, as part of a syndrome known as autoimmune syndrome induced by adjuvants (ASIA). Reported cases of ASIA have shown resolution with explantation, but not with immunomodulatory therapy. In this report, we described a case of a previously healthy 23-year-old woman, who has undergone silicone breast implant augmentation, for aesthetic reasons, and developed localized cutaneous impairment 3 years postsurgery. She received a diagnosis of ASIA with a new presentation: Lupus-like manifestation through localized cutaneous impairment. This patient's symptoms were managed without the need for surgical intervention, which has not been previously reported, because the patient did not want an explantation for aesthetic reasons. The patient was started on hydroxychloroquine, 400 mg per day, and remains asymptomatic after 2 years of treatment. The exact predisposition to ASIA is still unknown. Without implant explantation and with immunomodulatory treatment, this patient's condition substantially improved. Based on our current understanding of this disease, it might not be prudent to indicate breast augmentation with silicone implants in patients with documented autoimmune reaction to an adjuvant, an established autoimmune condition, or genetic predisposition. However, if a patient does develop silicone-induced ASIA, explantation is no longer the only successfully reported option, as these symptoms can be managed with immune suppression.

Τρίτη 24 Οκτωβρίου 2017

Non-invasive evaluation of Secukinumab efficacy in severe plaque psoriasis with confocal microscopy and optical coherence tomography: A case report



Feature analysis of ultrasound elastography image for quantitative assessment of cutaneous carcinoma

Abstract

Background

To evaluate the feasibility of using quantitative texture features computed from high frequency ultrasound and ultrasound elastography (USE) images in the discrimination of benign from malignant skin lesions.

Methods

A commercial ultrasound system with a 14 MHz transducer was used to visualize skin lesions requiring biopsy on clinical evaluation. Patients were enrolled over a 6-month period and imaged prospectively by operators blind to the histopathologic diagnosis. Anatomic ultrasound and USE imaging of the skin lesions was performed using a 2-4 mm gel standoff pad before biopsy and histopathologic evaluation. The ElastoAnalysis software developed for the texture analysis of USE images was provided by Hitachi. The software computes thirteen texture features within a region of interest (ROI), which have demonstrated promise in diagnostic characterization of liver fibrosis staging and in quantitative elastography of breast cancer. This approach has not yet been studied in the quantitative assessment of skin cancer. Results were retrospectively compared to the histopathologic diagnosis and a diagnostic criteria with the goal of maximizing sensitivity was evaluated for each textural feature.

Results

Of the 37 lesions included, among 30 patients who participated, 12 lesions were malignant and 25 were benign. Eleven out of thirteen textural metrics computed by the software were useful in differentiating benign from malignant lesions with 100% sensitivity and specificities ranging from 28% to 85%.

Conclusions

This feasibility study demonstrated that feature analysis of USE may be useful in quantitatively differentiating cancerous from benign primary solitary skin lesions prior to biopsy.



Sensitive skin in Korean population: An epidemiological approach

Abstract

Background/Purpose

Sensitive skin is characterized by uncomfortable sensations in response to multiple factors that do not normally have irritant properties. We used an epidemiological approach to evaluate the prevalence and characteristics of sensitive skin in a Korean population, and compared the results with those of populations from other countries.

Methods

A representative nationwide sample of 1000 Koreans aged ≥15 years was selected. The methodology used in this study (questionnaires) was the same as that used in similar studies conducted in other countries.

Results

Sensitive skin was present in 56.8% of the Koreans. The prevalence of sensitive skin was highest among countries such as the USA (44.6%), Europe (38.4%), Russia (39.7%), Brazil (34.2%), and Japan (54.5%). Participants with sensitive skin were more likely to accompany skin disorders than those with non-sensitive skin (72.3% vs 38.0%; P < .001). Sensitive skin group were 2-3 times more reactive to climatic and environmental factors, cosmetics, and food items than non-sensitive skin group.

Conclusion

The prevalence of sensitive skin in Korea is the highest among countries in which such investigation has been conducted. The sensitive skin group appears more likely to experience dermatological reactions to unexpected factors than the non-sensitive skin group.



Haptic augmented skin surface generation toward telepalpation from a mobile skin image

Abstract

Background/purpose

Very little is known about the methods of integrating palpation techniques to existing mobile teleskin imaging that delivers low quality tactile information (roughness) for telepalpation. However, no study has been reported yet regarding telehaptic palpation using mobile phone images for teledermatology or teleconsultations of skincare.

Methods

This study is therefore aimed at introducing a new algorithm accurately reconstructing a haptic augmented skin surface for telehaptic palpation using a low-cost clip-on microscope simply attached to a mobile phone. Multiple algorithms such as gradient-based image enhancement, roughness-adaptive tactile mask generation, roughness-enhanced 3D tactile map building, and visual and haptic rendering with a three-degrees-of-freedom (DOF) haptic device were developed and integrated as one system.

Results

Evaluation experiments have been conducted to test the performance of 3D roughness reconstruction with/without the tactile mask. The results confirm that reconstructed haptic roughness with the tactile mask is superior to the reconstructed haptic roughness without the tactile mask. Additional experiments demonstrate that the proposed algorithm is robust against varying lighting conditions and blurring. In last, a user study has been designed to see the effect of the haptic modality to the existing visual only interface and the results attest that the haptic skin palpation can significantly improve the skin exam performance.

Conclusion

Mobile image-based telehaptic palpation technology was proposed, and an initial version was developed. The developed technology was tested with several skin images and the experimental results showed the superiority of the proposed scheme in terms of the performance of haptic augmentation of real skin images.



Benefit of early initiation of neuraminidase inhibitor treatment to hospitalized patients with avian influenza A (H7N9) virus

Abstract
Background
The significance of early neuraminidase inhibitor (NAI) therapy for treating influenza A(H7N9) is currently unknown.
Methods
The duration of viral shedding was monitored by RT-PCR after patients with confirmed H7N9 infection were admitted to the First Affiliated Hospital, Zhejiang University during April 2013 to April 2017. Indices such as the length of hospitalization and mortality were collected, and the correlation between the time of administration of NAI and the severity of disease was systematically analyzed.
Results
160 patients with confirmed H7N9 infection were divided into three groups according to NAI starting time. 3 (15%) out of 20 patients for whom NAI was administered within 2 days died compared with 12 (23.1%) out of 52 patients who received treatment within 2–5 days and 33 (37.5%) out of 88 patients who were treated after 5 days (P<0.05). The median durations of viral shedding from NAI therapy initiation was 4.5 days (interquartile range (IQR): 3–9) for patients who took antiviral medication within 2 days, which was significantly different from that for patients who took medication within 2–5 days (7.5 days,IQR: 4.25–12.75) or after 5 days (7days, IQR: 5–10) (P<0.05). We found that the duration of viral shedding from NAI therapy was the shortest of 5.5 days in spring 2013 and the longest of 8.5 days in winter-spring 2016–17 (P<0.05), showing a prolonged trend.
Conclusions
Early NAI therapy within 2 days of illness shorten the duration of viral shedding and improve survival in patients with H7N9 viral infections.

Retreatment with sofosbuvir plus grazoprevir/elbasvir plus ribavirin of patients with hepatitis C virus genotype 1 or 4 who previously failed a NS5A or NS3-containing regimen. ANRS HC34 REVENGE

Abstract
Failure to achieve sustained virological response (SVR) with hepatitis C virus (HCV) direct-acting antiviral-based regimens is commonly associated with emergence of resistance-associated substitutions (RAS). Re-treatment of patients who failed prior direct-acting antivirals remain challenging. The aim of this prospective and randomized study was to evaluate the efficacy (SVR12 primary endpoint) and safety of sofosbuvir + grazoprevir/elbasvir + ribavirin for 16 or 24 weeks in patients who had failed to achieve SVR on previous NS5A or NS3-based therapy and with evidence of RAS at failure. Patients were chronically infected with HCV genotype (GT) 1 or 4. Most of them had advanced fibrosis or compensated cirrhosis (liver stiffness 5.8–48.8 kPa). All patients achieved HCV RNA below lower limit of quantification (either TD[u] or TND) during treatment. SVR12 was achieved by 25/26 patients. The only patient who did not reach SVR was a patient who died but HCV-RNA was negative at this time (5 weeks after stopping treatment). No patient discontinued treatment because of adverse events or virological failure. Globally, treatment was well tolerated. In conclusion, our findings support the concept of retreating with sofosbuvir+ grazoprevir/elbasvir + ribavirin for 16 weeks GT1 or GT4 DAA-experienced patients with proven NS5A or NS3 RAS.

Investigation of a Cluster of Sequence Type 22 Methicillin-Resistant Staphylococcus aureus Transmission in a Community Setting

Abstract
Background
Whole-genome sequencing (WGS) has typically been used to confirm or refute hospital/ward outbreaks of methicillin-resistant Staphylococcus aureus (MRSA) identified through routine practice. However, appropriately targeted WGS strategies that identify routinely "undetectable" transmission remain the ultimate aim.
Methods
WGS of MRSA isolates sent to a regional microbiological laboratory was performed as part of a 12-month prospective observational study. Phylogenetic analyses identified a genetically related cluster of E-MRSA15 isolated from patients registered to the same general practice (GP) surgery. This led to an investigation to identify epidemiological links, find additional cases, and determine potential for ongoing transmission.
Results
We identified 15 MRSA-positive individuals with 27 highly related MRSA isolates who were linked to the GP surgery, 2 of whom died with MRSA bacteremia. Of the 13 cases that were further investigated, 11 had attended a leg ulcer/podiatry clinic. Cases lacked epidemiological links to hospitals, suggesting that transmission occurred elsewhere. Environmental and staff screening at the GP surgery did not identify an ongoing source of infection.
Conclusions
Surveillance in the United Kingdom shows that the proportion of MRSA bacteremias apportioned to hospitals is decreasing, suggesting the need for greater focus on the detection of MRSA outbreaks and transmission in the community. This case study confirms that the typically nosocomial lineage (E-MRSA15) can transmit within community settings. Our study exemplifies the continued importance of WGS in detecting outbreaks, including those which may be missed by routine practice, and suggests that universal WGS of bacteremia isolates may help detect outbreaks in low-surveillance settings.

Vancomycin Ineffective in Eliminating MRSA Colonization of Respiratory Secretions in Ventilated ICU Patients: A Clinical and Pharmacokinetic Perspective

Antibiotic PharmacokineticsAntibiotic secretion penetration

Endocarditis prophylaxis



Reply to Raoult



Trichomonas vaginalis brain abscess in a neonate

Abstract
We describe a case of cerebral trichomoniasis in a neonate who developed seizures and multi-organ failure during treatment for staphylococcal sepsis. Brain abscesses were identified on cranial sonography. Trichomonas vaginalis was isolated from cerebrospinal fluid. There was a fatal outcome despite metronidazole therapy.

Surgical excision of osteochondroma on mandibular condyle via preauricular approach with zygomatic arch osteotomy

Abstract

Background

Osteochondroma is a benign tumor that tends to develop in mandibular condyle and coronoid process in the craniofacial region. If tumor mass has grown from condyle into the infratemporal space with zygomatic arch obstructing the access, there are risks associated with surgical exposure and local resection of these masses.

Case presentation

This study reports on a case of osteochondroma on mandibular condylar head where we treated with surgical excision via preauricular approach with 3D analysis. After the local resection, there were no surgical and post-operative complications until 8-month follow-up period.

Conclusions

In local excision of osteochondroma, our method is a minimally invasive method. It is a good example of osteochondroma treatment.



Evaluation of mandibular lingula and foramen location using 3-dimensional mandible models reconstructed by cone-beam computed tomography

Abstract

Background

The positions of the mandibular lingula and foramen have been set as indexes for inferior alveolar nerve (IAN) block and ramus osteotomies in orthognathic surgery. This study aimed to evaluate the anatomical structures of mandibular ramus, especially the mandibular lingula and foramen, by analyzing the cone-beam computed tomography (CBCT) data of young adults.

Methods

We evaluated 121 sides of hemi-mandibular CBCT model of 106 patients (51 male and 55 female patients; 18 to 36 years old). All the measurements were performed using the 2- and 3-dimensional rulers of OnDemand3D® software.

Results

Statistical analysis of the data revealed that there was no significant difference in the mandibular angle between the genders. The mandibular lingula was found to be located at the center of ramus in males, but a little posterior in relation to the center in females. The mandibular lingula was rarely located below the occlusal plane; however, the position of the mandibular foramen was more variable (84.3% below, 12.4% above, and 3.3% at the level of the occlusal plane).

Conclusions

The results of this study provide a valuable guideline for IAN block anesthesia and orthognathic surgery. CBCT can be considered effective and accurate in evaluating the fine structures of the mandible.



Book Review: Jason Brennan, Against Democracy . Princeton, New Jersey: Princeton University Press, 2016, ix + 288 pp, ISBN 9780691162607 $29.95



Bullous Sweet's syndrome with myositis

Publication date: Available online 24 October 2017
Source:Actas Dermo-Sifiliográficas
Author(s): K. Sato, T. Miura, M. Ohtsuka, T. Yamamoto




Extracellular Hsp70 induces inflammation and modulates LPS/LTA-stimulated inflammatory response in THP-1 cells

Abstract

Extracellular Hsp70 (eHsp70) can act as damage-associated molecular pattern (DAMP) via Toll-like receptors TLR2 and TLR4, and stimulate immune and inflammatory responses leading to sterile inflammation and propagation of already existing inflammation. It was found elevated in the blood of patients with chronic obstructive pulmonary disease (COPD), who might suffer occasional bacterial colonizations and infections. We used a monocytic THP-1 cell line as a cellular model of systemic compartment of COPD to assess inflammatory effects of eHsp70 when present alone or together with bacterial products lypopolysaccharide (LPS) and lypoteichoic acid (LTA). THP-1 cells were differentiated into macrophage-like cells and treated with various concentrations of recombinant human Hsp70 protein (rhHsp70), LPS (TLR4 agonist), LTA (TLR2 agonist), and their combinations for 4, 12, 24, and 48 h. Concentrations of IL-1α, IL-6, IL-8, and TNF-α were determined by ELISA. Cell viability was assessed by MTS assay, and mode of cell death by luminometric measurements of caspases-3/7, -8, and -9 activities. rhHsp70 showed cell protecting effect by suppressing caspases-3/7 activation, while LPS provoked cytotoxicity through caspases-8 and -3/7 pathway. Regarding inflammatory processes, rhHsp70 alone induced secretion of IL-1α and IL-8, but had modulatory effects on release of all four cytokines when applied together with LPS or LTA. Combined effect with LPS was mainly synergistic, and with LTA mainly antagonistic, although it was cytokine- and time-dependent. Our results confirmed pro-inflammatory function of extracellular Hsp70, and suggest its possible implication in COPD exacerbations caused by bacterial infection through desensitization or inappropriate activation of TLR2 and TLR4 receptors.



A Novel and More Aesthetic Injection Pattern for Malar Cheek Volume Restoration

Abstract

The loss of superior midface contour and projection can be corrected with the use of injectable hyaluronic acid (HA) dermal fillers, however, the most frequently used injection pattern employs a technique which was originally designed for malar implant surgery. Here we describe a novel injection pattern for restoring facial contours with a HA dermal filler inspired by traditional make-up artistry, which includes greater superolateral positioning of injection sites. Importantly, this technique helps injectors avoid creating an excess of volume in the anterior portion of the malar complex. Contributing authors/injectors, who now use this technique exclusively, have found that it has so far provided optimal aesthetic results for hundreds of patients with no observables complications. The malar cheek contributes much to the aesthetic curvature of the face and deserves a thoughtful update for injectable HA, as the traditional technique has never actually been aligned with its medium. In the experience of the contributing authors, this technique helps achieve a greater aesthetic outcome in the correction of midface contour deficiencies and has consistently resulted in high patient satisfaction.

Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://ift.tt/18t7xNj.