Αρχειοθήκη ιστολογίου

Πέμπτη 3 Δεκεμβρίου 2020

Combined preoperative HRCT parameters for prediction of round window visibility in pediatric cochlear implant patient.

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Combined preoperative HRCT parameters for prediction of round window visibility in pediatric cochlear implant patient.

Int J Pediatr Otorhinolaryngol. 2020 Nov 26;:110521

Authors: Rashad Ghoneim MM, Ghonim MR, Mohamed Badawy AA, Abdel Razek AAK, Salam Hafez MA, Hamad MS, Salem MA

Abstract
OBJECTIVE: To evaluate the add value of combined analysis of high resolution computed tomography (HRCT) temporal bone parameters in accurate prediction of round window (RW) visibility through posterior tympanotomy.
PATIENTS AND METHODS: a retrospective observational study was held in a tertiary center, conducted on 45 cochlear implant pediatric candidates between January 2017 and September 2019. Candidates were referred for CT temporal bone. They were classified into fully visible RW cases and partially or non-visible RW cases. Radiological measurements were compared between the two groups for prediction of RW visibility separate and in combination.
RESULTS: 45 patients were included in the study (26 males (57.8%) and 19 females (42.2%)). Their median age was 4 years (2-12 years). There were 38 (84.4%) fully visible and 7 (15.6%) partially or non-visible RW cases. Kashio posterior line (n:32/3), fascial recess width (FRW) (mean: 4.9 (3.5-7.5)/4.2 (4-4.7) mm) and round window location (RWL) (3 (1-4)/2.8 (1-3)mm) measurements significantly differentiated between the two groups; (P value 0.034, 0.012 & 0.025 respectively). Posterior kashio line and cut off values of ≥4.75 mm of FRW & 2.95 mm of RWL were showed sensitivity 84.2%, 63.2% & 65.8%, and accuracy 80%, 68.9% &68.9% in prediction of RW visibility respectively. Combination of Kashio prediction line with cut off value ≥ 7.45 mm (sum of FRW & RWL) showed P value 0.003 with further improve in the sensitivity and overall accuracy in prediction of RW visibility from 84.2% to 80% up to 91.4% and 88.6% respectively.
CONCLUSION: combined parameters using Kashio line with FRW and RWL increases sensitivity and overall accuracy in prediction of RW visibility rather than single parameter.

PMID: 33257023 [PubMed - as supplied by publisher]

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Acquired subglottic cysts in children:

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Acquired subglottic cysts in children: A rare and challenging clinical entity. A systematic review.

Int J Pediatr Otorhinolaryngol. 2020 Nov 26;:110523

Authors: Soloperto D, Spinnato F, Di Gioia S, Di Maro F, Pinter P, Bisceglia A, Marchioni D

Abstract
INTRODUCTION: Subglottic cysts (SGCs) are a rare cause of laryngeal stenosis that mainly seem to affect preterm infants with an intubation history.
PURPOSE: To review the related literature and compare different management protocols for patients presenting SGCs, as well as briefly report our clinical case treated at Verona University Hospital by Pediatric Airways Team.
METHODS: The articles resulting from a PubMed and MEDLINE search were analysed and selected using previously established criteria. A systematic review of the selected papers was conducted following PRISMA guidelines.
RESULTS: The search yielded 571 related articles; cross-checking of articles led to the identification and exclusion of 239 duplicates. The remaining 332 papers were screened according to previously established eligibility criteria. The final number of selected articles was 13.
CONCLUSIONS: Well-planned teamwork, with active collaboration between the ENT specialists, pediatricians and anesthesiologists, is the key to achieve multidisciplinary management of patients diagnosed with SGCs. Long-term follow-up is crucial considering the high recurrence rate of this disease.

PMID: 33261859 [PubMed - as supplied by publisher]

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Intercarotid artery distance in the pediatric population: Implications for endoscopic transsphenoidal approaches to the skull base.

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Intercarotid artery distance in the pediatric population: Implications for endoscopic transsphenoidal approaches to the skull base.

Int J Pediatr Otorhinolaryngol. 2020 Nov 25;:110520

Authors: Li L, Carrau RL, Prevedello DM, Yang B, Rowan N, Han D, London NR

Abstract
OBJECTIVE: Comprehensive quantitative evaluation of the intercarotid artery distance (ICD) in the pediatric population has not been sufficiently explored. This study aims to measure the minimal ICDs at multiple levels of the skull base to assess changes in the ICD during development.
METHODS: Measurement of the ICDs between the paired paraclival, parasellar, and paraclinoid segments of the internal carotid artery (ICA) was performed on coronal MRI from 540 patients ranging from 0 to 17 years old (n = 30 for each age). Comparison of these indices in the very young (0-5 years, Group 1) and young (6-17 years, Group 2) patients, and assessment of the degree of sphenoid sinus pneumatization was employed.
RESULTS: The narrowest ICD was located at the paraclinoid ICAs in the vast majority of cases (89.44%). When comparing the ICDs in very young age patients with the ICDs of 17 years old subjects, a statistically significant difference was found at the paraclival (ages 0-5), parasellar (ages 0-2), and paraclinoid (ages 0-4) ICDs (p < 0.05). Comparison of the ICDs between the intergroups (Group 1 and 2) also demonstrated a statistically significant difference (p < 0.0001). Pneumatization of the sphenoid sinus was initially noted to start at 3 years of age, and there were no patients with a non-pneumatized sphenoid sinus identified after 7 years of age in our cohort.
CONCLUSION: Measurement of ICDs at multiple levels provides a valuable reference for EEA procedures in the pediatric population. While the ICD may be largely stable in the pediatric population after 5 years of age, additional anatomic factors may restrict transsphenoidal access in very young patients (0-5 years).

PMID: 33261860 [PubMed - as supplied by publisher]

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Management of stapes footplate fistula in inner ear malformations.

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Management of stapes footplate fistula in inner ear malformations.

Int J Pediatr Otorhinolaryngol. 2020 Nov 26;140:110525

Authors: Sennaroglu L, Bajin MD

Abstract
BACKGROUND: Certain inner ear malformations have stapes footplate fistula which may cause meningitis during otitis media. This may result in fatality. It is the responsibility of the otolaryngologist to diagnose and treat the condition to prevent further attacks of meningitis.
MATERIALS AND METHODS: Surgical findings of the 17 patients who have inner ear malformations with oval window fistula were retrospectively analyzed. Inner ear malformations were classified according to Sennaroglu classification. Different stages of stapes footplate fistula are classified.
FINDINGS: Seventeen patients had spontaneous stapes footplate fistula at the oval window. No patient had spontaneous leakage at the round window site. Proper sealing of the leakage area with fascia in a dumbbell fashion is mandatory. Keeping the stapes in place and lumbar drainage are the two most important factors in the successful management of fistula. Particularly important is the simultaneous fistula repair and cochlear implantation where combined postauricular-transcanal approach provides the best method. Vaccination is important but not sufficient to prevent meningitis in inner ear malformations unless repair of the fistula is performed.
CONCLUSION: If the patient has a history of meningitis in the presence of inner ear malformation, particular attention should be given to oval window area to look for an opacity, cyst or a leaking lesion at the stapes footplate. Immediate surgical exploration and repair of the leak is mandatory to prevent further attacks of meningitis. Surgeon should not leave the operation without fully controlling the leak.

PMID: 33264678 [PubMed - as supplied by publisher]

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Τετάρτη 2 Δεκεμβρίου 2020

Smoking status before and after colorectal cancer diagnosis and mortality

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Smoking status before and after colorectal cancer diagnosis and mortality in Korean men: A population‐based cohort study

This study found that both smoking before and after cancer diagnosis is associated with increased mortality rate among colorectal cancer patient. Quitting smoking after diagnosis was significantly related to diminished mortality among colorectal cancer patients receiving only operation, who is considered as early stage colorectal cancer patients, though smoking cessation after diagnosis among colorectal cancer patients who received radiotherapy or chemotherapy was not associated with significantly decreased mortality.


Abstract

Background

Smoking is a well‐known risk factor for colorectal cancer incidence; however, the effect of smoking before and after cancer diagnosis on mortality has not been addressed well. Thus, we aimed to evaluate the association of prediagnosis and postdiagnosis smoking status and mortality among colorectal cancer patients.

Methods

A retrospective cohort consisted of 37,079 male colorectal cancer patients. Smoking status was defined from information within 2 years of colorectal cancer diagnosis for prediagnosis and at least 1 year later for postdiagnosis. The prediagnostic and postdiagnostic smoking status were categorized into four groups (nonsmoker/nonsmoker, nonsmoker/smoker, smoker/nonsmoker, and smoker/smoker). Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using the Cox proportional hazard model.

Results

During a median of 6.3 years of follow‐up, a total of 3980 deaths and 2137 deaths from colorectal cancer occurred. The number of prediagnosis smokers were 11,100 and 62.4% of them quitted smoking after the diagnosis. Significantly elevated mortality rate in prediagnosis smokers was observed regardless of postdiagnosis smoking status (smoker/nonsmoker [HR, 1.30; 95% CI, 1.20–1.41] and smoker/smoker [HR, 1.21; 95% CI, 1.09–1.34]). Among patients treated with surgical operation only, those who quit smoking after diagnosis showed lower mortality rates compared to continual smokers (HR, 0.80; 95% CI, 0.67–0.96).

Conclusions

Smoking before cancer diagnosis rather than postdiagnosis has stronger impact on prognosis colorectal cancer patients, and quitting smoking may improve survival, especially among early stage colorectal cancer patients.

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Investigation of drugs affecting hypertension in bevacizumab‐treated patients and examination of the impact on the therapeutic effect

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Investigation of drugs affecting hypertension in bevacizumab‐treated patients and examination of the impact on the therapeutic effect

The use of PPIs prevents hypertension in bevacizumab‐treated patients. However, it may reduce the anti‐tumor effect of bevacizumab by inducing the expression of VEGF.


Abstract

Background

In patients treated with bevacizumab, hypertension may be a biomarker of therapeutic efficacy. However, it is not clear whether drugs that control blood pressure influence bevacizumab's efficacy. In this study, we investigated drugs that may affect hypertension in bevacizumab‐treated patients and examined the impact on the therapeutic effect.

Patients and methods

We analyzed 3,724,555 reports from the third quarter of 2010 to the second quarter of 2015. All data were obtained from the Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) analysis. In this retrospective cohort study, we investigated a total of 58 patients diagnosed with colorectal cancer and treated for the first time with bevacizumab containing XELOX or mFOLFOX6 at The University of Tokushima Hospital between January 2010 and December 2015. The effect of the treatment was evaluated according to Response Evaluation Criteria in Solid Tumors version 1.0. Thereafter, the effect was confirmed using Gene Expression Omnibus (GEO) and cultured cells.

Results

There are few reports in FAERS of hypertension in patients treated with omeprazole on bevacizumab. Based on the chart review, patients who used proton pump inhibitors (PPI) had a lower response to treatment than those who did not (response rate: 25% vs 50%). Furthermore, experiments on GEO and cell lines suggested that induction of vascular endothelial growth factor (VEGF) gene expression by PPIs is the cause of the reduced therapeutic effect.

Conclusion

PPIs prevent hypertension in bevacizumab‐treated patients but may reduce bevacizumab's anti‐tumoral effects by inducing VEGF expression.

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Periplocin inhibits the growth of pancreatic cancer by inducing apoptosis via AMPK‐mTOR signaling

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Periplocin inhibits the growth of pancreatic cancer by inducing apoptosis via AMPK‐mTOR signaling

In this work, we evaluated the effect of Periplocin on pancreatic cancer growth and tried to clarify its molecular mechanism.


ABSTRACT

Background

Periplocin is a monomeric compound that exhibits anti‐tumor activities. It is extracted from Cortex Periplocae.

Objective

This study aimed at determining the effect of periplocin treatment on the apoptosis and proliferation of human pancreatic cancer cells, and to elucidate on its mechanisms of action.

Methods

PANC1 and cfpac1 cells were treated with periplocin. Cell proliferation was detected by RTCA, Ki67 immunofluorescence, and a clonogenic assay. The transwell assay was used to examine cell migration and invasion functions. The expression of apoptosis‐associated proteins was detected by flow cytometry and western blotting. Total RNA was extracted from the treated and untreated group of PANC1 cells for RNA‐seq detection and analysis. Differentially expressed genes were screened for GO biological process and KEGG pathway analysis. Finally, CFPAC1 cells were subcutaneously inoculated into BALB / c nude mice to assess tumor growth.

Results

Periplocin inhibited the proliferation of PANC1 and CFPAC1 cells and induced their apoptosis by activating the AMPK/mTOR pathway and inhibiting p70 S6K. It also attenuated the cell migration, invasion, and inhibited the growth of cfpac1 xenografts in nude mice.

Conclusions

Periplocin inhibits human pancreatic cancer cell proliferation and induces their apoptosis by activating the AMPK / mTOR pathway.

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Construction of a disease‐specific lncRNA‐miRNA‐mRNA regulatory network reveals potential regulatory axes and prognostic biomarkers for hepatocellular carcinoma

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Construction of a disease‐specific lncRNA‐miRNA‐mRNA regulatory network reveals potential regulatory axes and prognostic biomarkers for hepatocellular carcinoma

This article constructed an HCC‐specific ceRNA network by integrating a differential lncRNA‐miRNA‐mRNA regulatory network and an online tool‐based ceRNA network. As a result, four lncRNA–miRNA–mRNA regulatory axes were extracted, and a prognostic signature (CRNDE, MYLK‐AS1 and CHEK1) was identified for overall survival (OS) of HCC. A nomogram comprising the prognostic signature and pathological stage was established and showed some net clinical benefits.


Abstract

Hepatocellular carcinoma (HCC) is a heterogeneous malignancy with a high incidence and poor prognosis. Exploration of the underlying mechanisms and effective prognostic indicators is conducive to clinical management and optimization of treatment. The RNA‐seq and clinical phenotype data of HCC were retrieved from The Cancer Genome Atlas (TCGA), and differential expression analysis was performed. Then, a differential lncRNA‐miRNA‐mRNA regulatory network was constructed, and the key genes were further identified and validated. By integrating this network with the online tool‐based ceRNA network, an HCC‐specific ceRNA network was obtained, and lncRNA‐miRNA‐mRNA regulatory axes were extracted. RNAs associated with prognosis were further obtained, and multivariate Cox regression models were established to identify the prognostic signature and nomogram. As a result, 198 DElncRNAs, 120 DEmiRNAs, and 2827 DEmRNAs were identified, and 30 key genes identified from the different ial network were enriched in four cancer‐related pathways. Four HCC‐specific lncRNA‐miRNA‐mRNA regulatory axes were extracted, and SNHG11, CRNDE, MYLK‐AS1, E2F3, and CHEK1 were found to be related with HCC prognosis. Multivariate Cox regression analysis identified a prognostic signature, comprised of CRNDE, MYLK‐AS1, and CHEK1, for overall survival (OS) of HCC. A nomogram comprising the prognostic signature and pathological stage was established and showed some net clinical benefits. The AUC of the prognostic signature and nomogram for 1‐year, 3‐year, and 5‐year survival was 0.777 (0.657‐0.865), 0.722 (0.640‐0.848), and 0.630 (0.528‐0.823), and 0.751 (0.664‐0.870), 0.773 (0.707‐0.849), and 0.734 (0.638‐0.845), respectively. These results provided clues for the study of potential biomarkers and therapeutic targets for HCC. In addition, the obtained 30 key genes and 4 regulatory axes might also help elucidate the underlying mechanism of HCC.

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Minimally invasive surgery vs laparotomy for early stage cervical cancer: A propensity score‐matched cohort study

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Minimally invasive surgery vs laparotomy for early stage cervical cancer: A propensity score‐matched cohort study

Recent studies have shown that patients with early‐stage cervical cancer who underwent minimally invasive surgery (MIS) had a worse prognosis than that of laparotomy; However, whether minimally invasive radical hysterectomy is available for relatively low‐risk early patients under the 2018 FIGO guidelines have yet to be studied. A propensity score‐matched cohort study examining patients with stage IB (2018 FIGO) cervical cancer of relatively low‐risk who underwent radical hysterectomy found that the five‐year overall survival and disease‐free survival of MIS respectively reduced by 5.8% and 6.6% compared with laparotomy. The surgical approaches do have a significant difference for survival of patients with early cervical cancer who underwent radical hysterectomy. Even in stage IB1 patients with low‐risk, the oncologic outcomes of laparotomy is better compared with MIS.


Abstract

Objective

To compare the long‐term oncologic outcomes of minimally invasive surgery (MIS) vs laparotomy for patients with stage IB (2018 FIGO) cervical cancer.

Methods

A matched retrospective study of cervical cancer patients who underwent MIS or laparotomy at Sun Yat‐sen University Cancer Center from January 2012 to December 2015 was carried out. Patients were restaged according to the 2018 FIGO staging system for cervical cancer, 700 cases with stage IB cervical cancer were enrolled. Propensity score matching (PSM) was performed by software SPSS version 22.0, and a total of 426 patients were enrolled and analyzed. Oncologic outcomes were compared between patients undergoing MIS vs laparotomy.

Results

After PSM, there were no statistical differences in other baseline characteristics between MIS and laparotomy, except for age (p = 0.008). In all stage IB patients, MIS group had significantly lower disease‐free survival (DFS) rate and overall survival (OS) rate compared with laparotomy group (5‐year DFS rate, 87.5% vs 94.1%, hazard ratio for disease recurrence, 2.403; 95% CI, 1.216‐4.744; 5‐year OS rate, 92.3% vs 98.1%, hazard ratio for death, 3.719; 95% CI, 1.370‐10.093). In stage IB1 patients population, MIS was still associated with worse DFS and OS compared to laparotomy (5‐year DFS rate: 89.5% vs 100%, p = 0.012; 5‐year OS rate: 93.4% vs 100%, p = 0.043). Even in stage IB1 patients without lymph vascular space invasion, worse oncologic outcome could be observed in MIS group (DFS: p = 0.021; OS: p = 0.076).

Conclusion

Our study suggested that laparotomy resulted in better OS and DFS compared with MIS among patients with stage IB cervical cancer. Even in stage IB1 patients without lymph vascular space invasion (2018 FIGO), laparotomy might be still an oncologically safer approach.

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Efficacy and safety of oral metronomic etoposide in adult patients with metastatic osteosarcoma

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Efficacy and safety of oral metronomic etoposide in adult patients with metastatic osteosarcoma

Oral metronomic etoposide demonstrated effective palliation (progression‐free rate at 4 months was 40.3% (95%CI: 24.5‐56.2), along with acceptable toxicity in adult patients with metastatic osteosarcoma.


Abstract

Therapeutic options in patients with metastatic osteosarcoma are limited and effective systemic treatments are needed in this setting. The aim of this case series was to assess the efficacy and toxicity of oral metronomic etoposide in adult patients with progressive metastatic osteosarcoma. We retrospectively reviewed the electronic records of patients treated with oral metronomic etoposide (25 mg thrice daily, 3 weeks out of 4) from December 2002 to December 2018 at Gustave Roussy (Villejuif, France). The primary endpoint was progression‐free rate (PFR) at 4 months; secondary endpoints were: best response (according to RECIST v1.1), progression‐free survival (PFS), overall survival (OS) and safety. With a median follow‐up of 9.8 months, 37 patients were eligible for this analysis: 68% males, median age 42 (range: 21–75), 19% with synchronous metastases, 92% with lung metastases, median PS: 1 (range: 0–3). Median number of previous treatment lines in the metastatic setting was 1 (range: 0–4). Progression‐free rate at 4 months was 40.3% (95% CI: 24.5–56.2). Best response was partial response in 11% and stable disease in 35% of patients (disease control rate: 46%). Median PFS was 3.1 months (95% CI: 2.5–4.7) and median OS was 9.8 months (95% CI: 5.1–12.3). Toxicity profile was acceptable, with 13% grade 3 haematological toxicities (anaemia and neutropenia), without any grade 3–4 non‐haematological toxicity. In our experience, oral metronomic etoposide demonstrated effective palliation along with acceptable toxicity in patients with progressive metastatic osteosarcoma.

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Allogeneic stem cell transplant in patients with acute myeloid leukemia and karnofsky performance status score less than or equal to 80%: A study from the acute leukemia working party of the European Society for Blood and Marrow Transplantation (EBMT)

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Allogeneic stem cell transplant in patients with acute myeloid leukemia and karnofsky performance status score less than or equal to 80%: A study from the acute leukemia working party of the European Society for Blood and Marrow Transplantation (EBMT)

Graft‐versus‐host disease‐free, relapse‐free survival in patients with KPS score < 80% receiving MAC or RIC regimen.


Abstract

Limited data are currently available on the outcome of patients with acute myeloid leukemia (AML) undergoing allogeneic stem cell transplantation (allo‐SCT) with a reduced performance status. We herein present the results of a registry study on 2,936 AML patients undergoing allo‐SCT in first remission (CR1) with a Karnofsky Performance Status (KPS) score less than or equal to 80%. Two‐year leukemia‐free survival (LFS), overall survival (OS) and graft‐versus‐host disease (GVHD)‐free, and relapse‐free survival (GRFS) rates were 54%, 59%, and 41%, respectively. In multivariable analysis, patients with a KPS score = 80% had lower non‐relapse mortality (NRM) and superior OS in comparison to patients with a KPS score <80% (p < 0.001). In the subgroup of patients with a KPS score =80%, a reduced‐intensity conditioning (RIC) regimen was associated with an increased risk of relapse (p = 0.002) and lower GRFS (< i>p < 0.001) compared to myeloablative conditioning (MAC). Differently, in patients with a KPS score <80%, a RIC regimen resulted in lower NRM (p < 0.001), whereas relapse incidence did not differ, thus leading to an improved GRFS (p = 0.008) as compared to MAC. A transplant from a matched sibling donor (MSD) was associated with a reduced incidence of grade III‐IV acute GVHD (p < 0.01) and NRM (p < 0.01) in comparison to other donor types. In conclusion, allo‐SCT appears feasible in AML patients with a jeopardized KPS score. Survival is significantly affected by the conditioning intensity, which should be adjusted according to the severity of KPS impairment.

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