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Τετάρτη 15 Ιουνίου 2022

Giant solitary synovial osteochondromatosis of the temporomandibular joint: A case report

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Publication date: Available online 15 June 2022

Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

Author(s): Hisashi Ozaki, Masatoshi Chiba, Yoshioki Hamamoto, Mitsuyoshi Iino

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Clinical and laboratory responses to tigecycline in children

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Clinical and laboratory responses to tigecycline in children

Resistant bacterial infections have become more common in recent years, its treatment becomes a difficult problem. Tigecycline has a broad-spectrum antibacterial activity including resistant pathogens. Tigecycline may be a safe and important option in pediatric nosocomial infections due to resistant bacteria. Paediatric patients treated with tigecycline from 1 January 2010 to 31 October 2018 were analysed retrospectively to assess the efficacy and safety of tigecycline in children. Clinical response was considered cure in patients with all clinical signs of tigecycline-induced infection disappearing, a complete laboratory response, and improvement without further antibacterial therapy. The clinical response in patients who were not cured but recovered to the extent deemed appropriate by the researcher was evaluated as remission. Clinical response was considered failure in patients with no clinical improvement, culture positivity, acute-phase reactant elevation, and need for additi onal antibacterial therapy. There was a total of 25,251 patients, 1301 of whom were hospitalized in paediatric intensive care during the study. Paediatric patients who received tigecycline for at least 2 days (at least four doses) were analysed. This study included 91 children who received tigecycline treatment and met the inclusion criteria, aged 7 months to 17.5 years (median 8 years). The median length of hospital stay was 62 days (14–251 days). The median duration of antibiotic treatment before tigecycline treatment was 27 days (4–30 days). Among the most common were glycopeptides (95.6%) and carbapenems (89%). There were no significant differences in clinical response between tigecycline as monotherapy and as combined therapy (p = 0.742). Studies on the efficacy of tigecycline in children are not prospective due to safety concerns but contain data from limited cases in which it was used as salvage therapy. In our study, tigecycline was gi ven to 73.6% of patients as monotherapy, and this is the largest series involving monotherapy. The fact that the patients used long-term and multiple antimicrobial agents before tigecycline treatment (95.6% glycopeptides and 89% carbapenems) limited the options of antibiotics. Therefore, the rate of monotherapy was high, and clinical success did not differ significantly between patients who started tigecycline as monotherapy and combination therapy.


Abstract

What is known and objective

The frequency of multidrug-resistant bacterial infections is increasing worldwide. Tigecycline may be an important option for children with life-threatening nosocomial infections due to multidrug-resistant bacteria. However, there are few published data on the use of tigecycline in paediatric patients. By examining the results of tigecycline use in children, we aimed to draw attention to the fact that tigecycline may be an alternative in the treatment of resistant infections in children.

Methods

Paediatric patients treated with tigecycline from 1 January 2010 to 31 October 2018 at Eskişehir Osmangazi University Medical Faculty, which is a tertiary hospital, were analysed retrospectively to assess the efficacy and safety of tigecycline treatment in children. Patients using tigecycline were identified using the pharmacy database. Clinical and laboratory data were obtained from the files.

Results and discussion

This study included 91 children aged 7 months to 17.5 years; 52 were female (57.1%). At least one predisposing factor was present in 98.9% of the patients. Fifty-one bacteria were isolated from 44 patients. The tigecycline resistance rate was 3.9%. Only 2 of 91 patients experienced one or more side effects of tigecycline. Tigecycline can be used as salvage therapy in resistant infections where options are limited, although definitive conclusions about the efficacy and safety of tigecycline in children cannot be reached.

What is new and conclusion

Tigecycline may be a safe and important option in paediatric nosocomial infections due to resistant bacteria. Resistant bacterial infections have become more common in recent years, its treatment becomes a difficult problem. Tigecycline has a broad-spectrum antibacterial activity including resistant pathogens.

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BCAP31 is involved in modulating colorectal cancer cell proliferation via the Emerin/β-catenin axis

alexandrossfakianakis shared this article with you from Inoreader

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Publication date: Available online 15 June 2022

Source: Experimental Cell Research

Author(s): Liping Han, Junyang Shi, Lili Zhao, Jiaqiang Deng, Yan Li, Hong Zhao, Huani Wang, Yan Yan, Fangdong Zou

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Analgesia for Retinopathy of Prematurity Screening: A Systematic Review

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Abstract

Background and Aims

Premature neonates require regular ophthalmological examination, generally indirect ophthalmoscopy, to screen for retinopathy of prematurity (ROP). Conventional analgesia is provided with topical anaesthetic eyedrops and oral sugar solution, but neonates still experience significant pain. Here, the literature base was examined to evaluate the usefulness of other pharmacological analgesics.

Materials and Methods

A systematic review was undertaken, adhering to a PROSPERO preregistered protocol in accordance with PRISMA guidelines (identifier CRD42022302459). Electronic databases were searched for primary research articles on pharmacological pain interventions used for ROP screening in neonates. The primary outcome measure was pain scores recorded using validated pain scoring tools, with and without pharmacological interventions in neonates during eye examination. For analysis, studies were separated into two categories: topical anaesthesia and alternative pharmacological treatments.

Results

Eleven studies met the inclusion criteria. Topical analgesia, oral paracetamol, and intranasal fentanyl were found to be effective in reducing the pain of eye examination. Oral morphine and inhaled nitrous oxide had no significant effect on premature infant pain profile (PIPP) scores during indirect ophthalmoscopy.

Discussion

In addition to topical anaesthesia, premedication with oral paracetamol is recommended during screening examination for ROP. The routine use of fentanyl is not recommended due to the risk of potential side effects. Non-pharmacological measures, such as sweet oral solutions and comfort techniques may also be employed. Further research is required to determine whether the use of nitrous oxide has a role, and to develop a safe and effective analgesic strategy to fully ameliorates the pain of ROP screening.

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Τρίτη 14 Ιουνίου 2022

Alterations in kinematics of temporomandibular joint associated with chronic neck pain

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Abstract

Background

Temporomandibular disorder (TMD) is an umbrella term for pain and dysfunction of the temporomandibular joint (TMJ) and its associated structures. Patients with TMD show changes in TMJ kinematics and masticatory muscle activation. TMD is commonly comorbid with non-specific chronic neck pain (NCNP), which may be one of the risk factors for TMD.

Objectives

This study aimed to investigate whether patients with NCNP have altered TMJ kinematics and masticatory muscle activity.

Methods

This was a cross-sectional exploratory study including 19 healthy participants and 20 patients with NCNP but without TMD symptoms. TMJ kinematics was measured during mouth opening and closing, jaw protrusion and jaw lateral deviation. Surface electromyography was used to record the muscle activity of the anterior temporalis, masseter, sternocleidomastoid, and upper trapezius while clenching. Furthermore, cervical posture, cervical range of motion (ROM), and pressure pain threshold of the neck and masticatory muscles were measured.

Results

Compared with the healthy group, the NCNP group showed significantly reduced upper cervical rotation ROM (p=0.041), and increased condylar path length (p=0.02), condylar translation (opening p=0.034, closing p=0.011), and mechanical pain sensitivity of the upper trapezius (p=0.018). Increased condylar translation was significantly correlated with reduced upper cervical mobility and poor cervical posture (r=−0.322 to −0.397; p=0.012–0.046).

Conclusion

Increased condylar translation and path length in patients with NCNP may indicate poor control of TMJ articular movement, which may result from neck pain or may be a compensation for limited neck mobility. Evaluation of excessive TMJ translation may be considered in patients with NCNP.

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A Nomogram to Predict Nodal Response after Induction Chemotherapy for Hypopharyngeal Carcinoma

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A Nomogram to Predict Nodal Response after Induction Chemotherapy for Hypopharyngeal Carcinoma

This study is the first to establish and validate a nomogram based on five critical predictors, including tumor differentiation degree (DD), T classification, metastatic lymph node size (LS), number of lymph node metastases (NOL), and cervical nodal necrosis (CNN), to predict the response of metastatic lymph nodes after induction chemotherapy (ICT) for hypopharyngeal carcinoma patients. Our nomogram yielded relatively good accuracy in predicting the regional ICT response, which will be a useful tool to assist clinicians in future decision-making.


Background

For hypopharyngeal carcinoma, metastatic neck nodes with a low response to induction chemotherapy (ICT) should not be managed with concomitant chemoradiotherapy (CCRT), and the prediction of chemosensitivity before ICT could prevent adverse events from occurring during chemotherapy. In this study, we developed a nomogram to predict the regional response to ICT.

Methods

A total of 153 hypopharyngeal carcinoma patients with regional metastasis treated with ICT in our institution from January 2010 to September 2020 were retrospectively studied. According to ICT response evaluated by RECIST 1.1, patients were divided into chemo-insensitive (PR < 70%/SD/PD) (group 1) and chemosensitive (CR/PR ≥ 70%) (group 2) groups. Patients' clinical, image, and hematologic data before ICT were collected. The nomogram was built based on multivariate analysis and stepwise logistic regression and was evaluated from the aspects of discrimination and calibration.

Results

A nomogram based on five critical predictors, namely, tumor differentiation degree, T classification, metastatic lymph node size, number of lymph node metastases, and cervical nodal necrosis, was developed. The areas under the curve (AUC) values were 0.76 and 0.70 after adjusting the results using bootstrap methods. The calibration curve showed relatively good agreement between the predicted and observed probabilities.

Conclusions

Our nomogram yielded good accuracy in predicting the regional ICT response and will be a useful tool to assist clinicians in decision making.

Level of Evidence

4 Laryngoscope, 2022

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