Ετικέτες

Δευτέρα 14 Μαρτίου 2022

Skin-sparing mastectomy and mastopexy: A safe 'one step' option with immediate DIEP flap and simultaneous Nipple areola complex reconstruction

xlomafota13 shared this article with you from Inoreader

J Plast Reconstr Aesthet Surg. 2022 Feb 26:S1748-6815(22)00104-8. doi: 10.1016/j.bjps.2022.02.035. Online ahead of print.

NO ABSTRACT

PMID:35279420 | DOI:10.1016/j.bjps.2022.02.035

View on the web

Infections after mastectomy and tissue expander placement: A multivariate regression analysis

xlomafota13 shared this article with you from Inoreader

J Plast Reconstr Aesthet Surg. 2022 Jan 31:S1748-6815(22)00063-8. doi: 10.1016/j.bjps.2022.01.050. Online ahead of print.

ABSTRACT

BACKGROUND: While breast surgery is considered a clean case, tissue expander-based breast reconstruction (TE-BR) has infection rates quoted up to 31%, decidedly higher than the typical 1% to 2% rate of surgical site infections. Through multivariate regression, we sought to analyze risk factors that contribute to infections following TE placement.

METHODS: A retrospective study reviewed all patients undergoing mastectomy with immediate or delayed TE placement over a 22-month period. Infections were defined as clinically documented cellulitis or infection, return to the operating room (RTOR) for suspected infection, or positive operative or seroma cultures.

RESULTS: A total of 311 patients underwent mastectomy and TE placement to 490 breasts. 13.5% of breasts developed an infection prior to second stage reconstruction. Multivariate logistic regression indicated that patients who developed infections were older (52.8 vs. 47.6 years, OR 1.04, p = 0.02), had higher rates of full-thickness necrosis (24.6% vs. 3.6%, OR 6.64, p<0.01), had higher rates of seromas requiring drainage (33.3% vs. 11.5%, OR 2.79, p<0.01), and had longer periods of drain therapy (24.9 vs. 21.0 days, OR 1.04, p = 0.04). Logistic regression established that longer discharge antibiotic length was not protective against the development of infection.

CONCLUSION: Patients were more likely to develop an infection as the length of surgical drain retention increased, patient age increased, or if they developed seromas and full-thickness necrosis. Longer post-operative antibiotics were not protective against the development of infection in this sample. Prospective studies are needed to assess how antibiotic lengths can affect the morbidity of patients undergoing TE-BR.

PMID:35279422 | DOI:10.1016/j.bjps.2022.01.050

View on the web

Omaveloxolone attenuates squamous cell carcinoma growth and disease severity in an Epidermolysis Bullosa mouse model

xlomafota13 shared this article with you from Inoreader

Abstract

Patients with Epidermolysis Bullosa (EB) are susceptible to development of squamous cell carcinomas (SCC) at sites of chronic inflammation and fibrosis. While triterpenoids such as RTA 408 (Omaveloxolone) have been shown to reduce inflammation and inhibit tumor growth in various cancer models, the utility of this class of drugs in the treatment of SCC has not been investigated. Given the dual anti-inflammatory and anti-neoplastic properties of triterpenoids, we hypothesized RTA 408 would be an effective treatment for SCCs that arise in the chronic inflammatory setting in EB. We tested the effects of topical RTA 408 on a mouse model of non-Herlitz, junctional EB. RTA 408 significantly reduced phenotypic severity in the affected ears of Lamc2jeb mice. In cultures, RTA 408 reduced cell viability in EB-associated SCC cell lines and normal human epidermal keratinocytes. When administered in vivo, RTA 408 inhibited SCC tumor growth in mice without cutaneous or systemic tox icity. These results suggest that RTA 408 can be a promising new therapy to reduce inflammation and inhibit SCC growth in patients with EB.

View on the web

Recombinant human Hsp110-gp100 chaperone complex vaccine is nontoxic and induces response in advanced stage melanoma patients

xlomafota13 shared this article with you from Inoreader
imageHeat shock proteins (hsp) are intracellular chaperones that possess extracellular immunostimulatory properties when complexed with antigens. A recombinant Hsp110-gp100 chaperone complex vaccine showed an antitumor response and prolonged survival in murine melanoma. A phase Ib dose-escalation study of a recombinant human Hsp110-gp100 vaccine in advanced-stage melanoma patients was performed to evaluate toxicity, immunostimulatory potential and clinical response. Patients with pretreated, unresectable stage IIIB/C/IV melanoma received the chaperone complex vaccine in a dose-escalation protocol; three vaccinations over a 43-day-period. Tumor response, clinical toxicity and immune response were measured. Ten patients (eight female, median age 70 years) were enrolled and two patients had grade 1 adverse events; minor skin rash, hyperhidrosis and fever (no grade 2 or higher adverse events). Median progression-free survival was longer for lower vaccine doses as compared to the maximum dose of 180 mcg (4.5 vs. 2.9 months; P = 0.018). The lowest dose patients (30 and 60 mcg) had clinical tumor responses (one partial response, one stable disease). CD8+ T cell interferon-γ responses to gp100 were greater in the clinically responding patients. A pattern of B cell responses to vaccination was not observed. Regulatory T cell populations and co-stimulatory molecules including cytotoxic T-lymphocyte-associated protein 4 and PD-1 appeared to differ in responders versus nonresponders. A fully recombinant human Hsp110-gp100 chaperone complex vaccine had minimal toxicity, measurable tumor responses at lower doses and produced peripheral CD8+ T cell activation in patients with advanced, pretreated melanoma. Combination with currently available immunotherapies may augment clinical responses.
View on the web

Diagnosis and correction of the obstructive sleep apnea syndrome in children with tonsillar ring pathological conditions

xlomafota13 shared this article with you from Inoreader

Vestn Otorinolaringol. 2022;87(1):4-8. doi: 10.17116/otorino2022870114.

ABSTRACT

To summarize the results of a study of the clinical and polygrapic features of sleep in children with pathologic conditions of the tonsillar ring and obstructive sleep apnea. Tonsillar hypertrophy is the most common cause of obstructive sleep apnea in children. Using the data of overnight polysomnographic study and/or nocturnal pulse oximetry, groups of patients were distinguished depending on the presence and severity of their sleep breathing disorders. The effectiveness of adenotomy, adenotonsillotomy and/or adenotonsillectomy in children is demonstrated, depending on the severity of obstructive sleep apnea syndrome. Evaluation of breathing in sleeping children by polygraphic methods is necessary for early detection of obstructive sleep apnea syndrome and monitoring the effectiveness of surgical treatment.

PMID:35274885 | DOI:10.17116/otorino2022870114

View on the web

Hearing loss due to mutations in the genes responsible for Usher syndrome

xlomafota13 shared this article with you from Inoreader

Vestn Otorinolaringol. 2022;87(1):52-59. doi: 10.17116/otorino20228701152.

ABSTRACT

Usher syndrome is characterized by congenital bilateral sensorineural hearing loss and progressive retinitis pigmentosa, and has an autosomal recessive type of inheritance. The purpose of this work is to summarize the modern data of a clinical picture of Usher syndrome and analyse hearing impairment properties. The frequency of the syndrome among children suffering from hearing loss and deafness is from 3 to 10%. The prevalence of the syndrome in the world is estimated as 4.4 per 100.000 population. The complexity of the diagnosis of the syndrome lies in the significant clinical and genetic heterogeneity. Hearing and vision problems begin at different ages. Primary diagnosis begins with the clinical diagnosis of bilateral hearing loss and visual impairment manifests later. In this case the initial diagnosis of nonsyndromal hearing loss will not be defin itive. Molecular genetic studies contribute to the early clinical diagnosis of the syndrome. Understanding the cause of the disease allows to conduct correct medical and genetic counseling and get closer to solving treatment problems.

PMID:35274893 | DOI:10.17116/otorino20228701152

View on the web

Risk factors and clinical features of the course of recurrent acute otitis media in children

xlomafota13 shared this article with you from Inoreader

Vestn Otorinolaringol. 2022;87(1):9-13. doi: 10.17116/otorino2022870119.

ABSTRACT

This article discusses the problem of recurrent acute otitis media (RAOM) in children.

OBJECTIVE: To study the risk factors and the clinical course of RAOM in children.

MATERIAL AND METHODS: 148 children (81 boys and 67 girls) from 1 to 14 years old were examined with a diagnosis of recurrent otitis media. The work was carried out in the ENT departments of Pediatric Clinical Hospital No. 13 named after N.F. Filatov, Pediatric Clinical Hospital named after Z.A. Bashlyaeva. The average age of the children was 4.1±1.5 years.

All children underwent a clinical study, a laboratory study on the content of the main metabolite of vitamin D - 25(OH)D3 (25-hydroxyvitamin D, or calcidiol) in blood serum.

RESULTS: Our clinical examination of children with RAOM allows us to identify the main risk factors for this pathology. Thus, the most significant risk factors for the development of RAOM in children included in the study were: early visits by children to preschool institutions (50.6%), allergic history (39.1%), pathology during pregnancy (28.3%), mixed (38.5%) or artificial (27.7%) feeding in the first year of life, frequent upper respiratory tract diseases (41.2%), burdened heredity in close relatives according to RAOM (33.7%), smoking in the family of one of the parents (65.5%) presence in the family of one more child (34.4%).

CONCLUSION: It was shown that the absolute number of children (96%) with RAOM is characterized by a reduced level of 25(OH) vitamin D in the blood serum, which can increase the likelihood of developing episodes of acute otitis media in children and requires therapeutic correction.

PMID:35274886 | DOI:10.17116/otorino2022870119

View on the web

Αναζήτηση αυτού του ιστολογίου