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Anaesthesia Nov 2021We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We... (Clinical Trial)
Clinical Trial
We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05-1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4-7 days or ≥ 8 days of 1.25 (1.04-1.48), p = 0.015 and 1.31 (1.11-1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care.
Topics: Aged; Aged, 80 and over; COVID-19; Cohort Studies; Elective Surgical Procedures; Female; Humans; Internationality; Lung Diseases; Male; Patient Isolation; Postoperative Complications; Preoperative Care; Prospective Studies; Treatment Outcome
PubMed: 34371522
DOI: 10.1111/anae.15560 -
Nature Communications Dec 2016While blood vessels play important roles in bone homeostasis and repair, fundamental aspects of vascular function in the skeletal system remain poorly understood. Here...
While blood vessels play important roles in bone homeostasis and repair, fundamental aspects of vascular function in the skeletal system remain poorly understood. Here we show that the long bone vasculature generates a peculiar flow pattern, which is important for proper angiogenesis. Intravital imaging reveals that vessel growth in murine long bone involves the extension and anastomotic fusion of endothelial buds. Impaired blood flow leads to defective angiogenesis and osteogenesis, and downregulation of Notch signalling in endothelial cells. In aged mice, skeletal blood flow and endothelial Notch activity are also reduced leading to decreased angiogenesis and osteogenesis, which is reverted by genetic reactivation of Notch. Blood flow and angiogenesis in aged mice are also enhanced on administration of bisphosphonate, a class of drugs frequently used for the treatment of osteoporosis. We propose that blood flow and endothelial Notch signalling are key factors controlling ageing processes in the skeletal system.
Topics: Alendronate; Animals; Blood Vessels; Bone and Bones; Diphosphonates; Endothelial Cells; Female; Male; Mice, Inbred C57BL; Models, Biological; Neovascularization, Physiologic; Osteogenesis; Receptors, Notch; Regional Blood Flow; Signal Transduction
PubMed: 27922003
DOI: 10.1038/ncomms13601 -
Canadian Family Physician Medecin de... May 1983Acne surgery consists of comedone extraction of non-inflamed lesions, triamcinolone acetate injections of some inflamed lesions, and extraction of milia. Prevention is a...
Acne surgery consists of comedone extraction of non-inflamed lesions, triamcinolone acetate injections of some inflamed lesions, and extraction of milia. Prevention is a very important part of comedone treatment, especially avoidance of picking, moisturizers and harsh soaps. Instruments are also very important: even the finest may be too thick and may have to be filed down. Acne surgery is only an adjunct of good medical therapy.
PubMed: 21283373
DOI: No ID Found -
Cancers Mar 2023Small molecule protein kinase inhibitors (PKIs) have become an effective strategy for cancer patients. However, hepatotoxicity is a major safety concern of these drugs,... (Review)
Review
Small molecule protein kinase inhibitors (PKIs) have become an effective strategy for cancer patients. However, hepatotoxicity is a major safety concern of these drugs, since the majority are reported to increase transaminases, and few of them (Idelalisib, Lapatinib, Pazopanib, Pexidartinib, Ponatinib, Regorafenib, Sunitinib) have a boxed label warning. The exact rate of PKI-induced hepatoxicity is not well defined due to the fact that the majority of data arise from pre-registration or registration trials on fairly selected patients, and the post-marketing data are often based only on the most severe described cases, whereas most real practice studies do not include drug-related hepatotoxicity as an end point. Although these side effects are usually reversible by dose adjustment or therapy suspension, or by switching to an alternative PKI, and fatality is uncommon, all patients undergoing PKIs should be carefully pre-evaluated and monitored. The management of this complication requires an individually tailored reappraisal of the risk/benefit ratio, especially in patients who are responding to therapy. This review reports the currently available data on the risk and management of hepatotoxicity of all the approved PKIs.
PubMed: 36980652
DOI: 10.3390/cancers15061766 -
Nanomaterials (Basel, Switzerland) Jul 2016The tissue engineering (TE) of dental oral tissue is facing significant changes in clinical treatments in dentistry. TE is based on a stem cell, signaling molecule, and... (Review)
Review
The tissue engineering (TE) of dental oral tissue is facing significant changes in clinical treatments in dentistry. TE is based on a stem cell, signaling molecule, and scaffold triad that must be known and calibrated with attention to specific sectors in dentistry. This review article shows a summary of micro- and nanomorphological characteristics of dental tissues, of stem cells available in the oral region, of signaling molecules usable in TE, and of scaffolds available to guide partial or total reconstruction of hard, soft, periodontal, and bone tissues. Some scaffoldless techniques used in TE are also presented. Then actual and future roles of nanotechnologies about TE in dentistry are presented.
PubMed: 28335262
DOI: 10.3390/nano6070134 -
Australian Dental Journal Sep 2015Carious affected dentine (CAD) represents a very common substrate in adhesive dentistry. Despite its ability to interact with adhesive systems, the intrinsic character... (Review)
Review
BACKGROUND
Carious affected dentine (CAD) represents a very common substrate in adhesive dentistry. Despite its ability to interact with adhesive systems, the intrinsic character of CAD leads to lower bonding compared with sound dentine, regardless of the adhesive systems used. This low bonding may be more susceptible to leakage and hydrolysis of the interface by matrix metalloproteinases (MMPs). This systematic review aimed to determine current knowledge of CAD bonding, together with bond strength and MMP inhibitors' ability to prevent hybrid layer instability.
METHODS
MEDLINE/Pubmed, Scopus and The Cochrane Library databases were electronically searched for articles published from 1 January 1960 to 31 August 2014. Two reviewers independently screened and included papers according to predefined selection criteria.
RESULTS
The electronic searches identified 320 studies. After title, abstract and full-text examinations, 139 articles met the inclusion criteria. Data highlighted that a poor resin saturation of the already demineralized collagen matrix in CAD is strictly related to nanoleakage in interdiffusion and is the basis of the progressive decrease in strength with hydrolysis by MMPs. The use of mild self-etching systems seems to be the more accredited method to establish bonding in CAD. Inhibitors of MMPs may ensure better performance of CAD bonding, allowing undisturbed remineralization of the affected matrix.
CONCLUSIONS
CAD bonding needs further understanding and improvement, particularly to enhance the strength and durability of the hybrid layer.
Topics: Dental Bonding; Dental Caries; Dental Cements; Dental Leakage; Dentin; Humans; Matrix Metalloproteinase Inhibitors; Stress, Mechanical
PubMed: 25790344
DOI: 10.1111/adj.12309 -
Dermatology Online Journal Dec 2014Cryotherapy-induced milia is a rarely described cutaneous reaction that may occur in patients who have received cryotherapy with liquid nitrogen. Cryotherapy-induced... (Review)
Review
BACKGROUND
Cryotherapy-induced milia is a rarely described cutaneous reaction that may occur in patients who have received cryotherapy with liquid nitrogen. Cryotherapy-induced milia is characterized by 1-2 millimeter white dermal cysts that develop at the healed cryotherapy site. Milia en plaque, an erythematous plaque containing numerous milia, has not previously been described following treatment of a skin lesion with liquid nitrogen cryotherapy.
PURPOSE
We describe a man who developed cryotherapy-induced milia en plaque after receiving cryotherapy to his dorsal hand for the treatment of an actinic keratosis. We also summarize the potential complications of cryotherapy, the differential diagnosis of milia en plaque, and therapeutic interventions for this lesion.
MATERIALS AND METHODS
The features of a man with cryotherapy-induced milia en plaque are presented. Using PubMed, the following terms were searched and relevant citations assessed: cryosurgery, cryotherapy, hypothermia, milia, milia en plaque, and Wolf's isotopic response. In addition, the literature on cryotherapy-induced milia and cryotherapy-induced milia en plaque is reviewed.
RESULTS
Our patient developed cryotherapy-induced milia en plaque shortly after his cryotherapy site had healed. Some of the asymptomatic cystic dermal lesions had spontaneously resolved when a lesional biopsy was performed to confirm the diagnosis. The diagnosis, natural course, and potential treatments were discussed with the patient. Subsequent management was to observe the area; at follow-up examination, the remainder of the milia had also spontaneously resolved.
CONCLUSION
Cryotherapy-induced milia is a benign condition characterized by the development of small white dermal cystic lesions that develop at a healed liquid nitrogen cryotherapy site. The lesions may appear individually or as milia en plaque. While the mechanism of pathogenesis is unknown, we postulate that the condition is an example of Wolf's isotopic response, in which a new, unrelated skin disease develops at the site of a previously healed dermatosis - in this circumstance, following cryotherapy which created an immune compromised zone. The diagnosis of milia en plaque can usually be established by clinical presentation; if necessary, a biopsy can be performed to provide pathologic confirmation of the suspected diagnosis. Treatment options include manual extraction, topical retinoids, or observation. Similar to our patient, the milia may resolve spontaneously.
Topics: Aged; Cryotherapy; Diagnosis, Differential; Epidermal Cyst; Hand Dermatoses; Humans; Keratosis, Actinic; Male; Remission, Spontaneous; Skin Diseases
PubMed: 25756481
DOI: No ID Found -
Anais Brasileiros de Dermatologia 2017Epidermolysis bullosa is a group of mechano-bullous genetic disorders caused by mutations in the genes encoding structural proteins of the skin. Dystrophic epidermolysis...
Epidermolysis bullosa is a group of mechano-bullous genetic disorders caused by mutations in the genes encoding structural proteins of the skin. Dystrophic epidermolysis bullosa is caused by mutations in the COL7A1 gene encoding collagen VII, the main constituent of anchoring fibrils. In this group, there are autosomal dominant and recessive inheritances. The pre-tibial form is characterized by the presence of blisters, milia, atrophic scars and lesions similar to lichen planus. The diagnosis is clinical and laboratory and subtypes are distinguished by means of immunohistochemical and ultrastructural studies, in addition to genetic differentiation. Electron microscopy and immunomapping are used in the diagnosis.
Topics: Adult; Blister; Diagnosis, Differential; Epidermolysis Bullosa Dystrophica; Female; Humans; Immunohistochemistry; Pruritus
PubMed: 29267469
DOI: 10.1590/abd1806-4841.20175952 -
Journal of Oral Biology and... 2020Oral health is an integral part of general health. There are many oral health issues which are of concern to India, despite having the maximum number of dental schools...
Oral health is an integral part of general health. There are many oral health issues which are of concern to India, despite having the maximum number of dental schools in the world. Dental caries, oral cancers and periodontal diseases are areas of national oral health concern. India lacks baseline data to know the exact prevalence of oral diseases, which is the first requirement to frame any national policies or manpower allocation. India is a vast country, nations within a nation, with great diversity in eating and behavioural practices. With a population of 1.21 billion and 68.84% of population residing in villages, the strategies need to be customised based on the population subgroup. Low level of awareness, strained and skewed infrastructure and resources, lack of motivation and research and oral health policies are some major factors that need to be tackled. This paper would attempt to highlight the oral health concerns of India, lacunae in the current system and possible strategies to address these issues.
PubMed: 32489817
DOI: 10.1016/j.jobcr.2020.04.011 -
Frontiers in Immunology 2019The many clinical aspects of anti-p200 pemphigoid are not well-characterized. We aimed to analyze and correlate known existing data on the epidemiological, clinical,...
The many clinical aspects of anti-p200 pemphigoid are not well-characterized. We aimed to analyze and correlate known existing data on the epidemiological, clinical, histological, and immunological features of anti-p200 pemphigoid. We performed a review using Medline, Embase, and Web of Science databases (1900-2018). Case reports and series of patients were included. A total of 68 eligible studies that comprised 113 anti-p200 pemphigoid patients were included in the qualitative analysis, where there was a mean age of onset of 65.5 years. All patients presented with bullae/vesicles, and 54.3% had urticarial plaques. A similarity to bullous pemphigoid was reported in 66.1% of cases, but palmoplantar (51.4%), cephalic (40.3%), and mucosal (38.5%) involvement, besides frequent development of scars/milia (15.7%), were reported. Autoantibodies against recombinant laminin γ1 were detected in the sera of 73.1% of patients. Psoriasis was present in 28.3% of anti-p200 pemphigoid patients, particularly among Japanese patients (56.4%). The incidence of pustular psoriasis in this subgroup, was significantly greater than in the normal population. In conclusion, the diagnosis of anti-p200 pemphigoid may be suspected when a subepidermal autoimmune blistering disease develops in a younger age group, along with significant acral and cephalic distribution and mucosal involvement.
Topics: Age of Onset; Aged; Autoantibodies; Female; Humans; Laminin; Male; Pemphigoid, Bullous; Psoriasis
PubMed: 31695695
DOI: 10.3389/fimmu.2019.02466