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Δευτέρα 29 Μαρτίου 2021

Compartmentalization: An Open Technique for Frontal Sinus Repair and Preservation-Description of Technique and Early Case Series

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J Neurol Surg B Skull Base. 2021 Apr;82(2):189-195. doi: 10.1055/s-0039-1696683. Epub 2019 Sep 12.

ABSTRACT

Background Cranialization or obliteration is widely accepted intervention for traumatic or intentional breach of the frontal sinus. These techniques, however, result in the loss of frontal sinus function and have a persistent risk of cerebrospinal fluid (CSF) leak and mucocele. Compartmentalization is an open technique for repair of the frontal sinus using allograft onlay and a vascularized periosteal flap that allows for preservation of frontal sinus function. Objective The main objective of this article is to describe the technique for compartmentalization of the frontal sinus and demonstrate its efficacy and complication rate with an early patient series. Methods Our technique includes the following key components: harvesting of a pedicled periosteal flap, frontal sinus repair through a bifrontal craniotomy with minimal mucosa removal, ensuring the patency of the nasal frontal outflow tract, and separation of the brain from the frontal sinus with a dual layer of periosteum and allograft. All cases of frontal sinus repair using the compartmentalization technique at our institution were reviewed. Charts were reviewed for CSF leak, mucocele, and other complications. Results Twenty-three patients underwent the described frontal sinus repair technique 17 for tumor and 6 for trauma. There were no CSF leaks and no mucoceles. One patient experienced postoperative anemia and a "parameningeal reaction" that were managed with a short course of antibiotics. Conclusions Compartmentalization, due to its sinus preservation and low complication rate, represents a meaningful step forward in neurosurgical technique for open frontal sinus repair. However, long-term outcomes are necessary to fully evaluate risk of mucocele.

PMID:33777633 | PMC:PMC7987381 | DOI:10.1055/s-0039-1696683

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Reconstruct the anterior commissure with intralaryngeal mucosal flap

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Abstract

An anterior glottic web formation occurs from either congenital or acquired causes.1 Acquired anterior glottic web is the most common type of glottic web, and can be caused by surgical, iatrogenic, or external trauma. The severity of clinical symptoms, which include dysphonia or dyspnea, varies significantly according to the extent of the web.2,3 The prevention of glottic web formation is extremely important for surgical intervention on the anterior commissure.

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The Prognostic Variables Affecting the Frontal Sinusotomy Patency Outcome and How to Manage: A Prospective Study

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Abstract

Objectives

The study aimed to assess the factors affecting the frontal sinus patency after endoscopic frontal sinusotomy.

Design

A prospective cohort study

Setting

Tertiary centre hospital

Main outcome measures

Fifty patients with refractory chronic frontal sinusitis (83 operated frontal sinuses) had frontal sinusotomy and followed up for six months. Multiple operative factors were included; the type of the procedure, intraoperative sinus findings, degree of mucosal preservation, and middle turbinate stability. Other factors were also assessed, including smoking, the presence of allergic rhinitis, asthma, gastroesophageal reflux, and other associated medical comorbidities.

Results

The sinus patency success rate was 75.9%. There was a significant difference regarding the intraoperative anteroposterior sinus ostium diameter (5.36 ± 1.45 mm vs 8.88 ± 2.38 mm, p‐value: .001* in the failed group and the success group, respectively). There was a significant association between the patency outcome and the presence of associated medical comorbidities (P‐value: .001*), the presence of allergic rhinitis (P‐value: .001*), the degree of sinus mucosal preservation (P‐value: .012*), and the degree of middle turbinate stability (P‐value: .001*). The multivariate analysis showed that the intraoperative anteroposterior diameter of the sinus ostium, middle turbinate stability, and presence of allergic rhinitis were significant predictors (P‐value: .012*, .042*, and .013*, respectively).

Conclusion

Sinuses with anteroposterior ostium diameters less than 5.36 mm are more susceptible to restenosis. The flail middle turbinate increases the risk of postoperative middle meatus synechia and frontal sinus patency failure. The presence of allergic rhinitis has a negative impact on the patency outcome.

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Intraoperative botulinum toxin injection for superficial partial parotidectomy: A prospective pilot study

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Abstract

Objectives

Sialocele and salivary fistula are not serious but troublesome complications after parotidectomy. Various modalities have been introduced to prevent postoperative saliva‐related complications. However, clinical trials assessing the prophylactic use of botulinum toxin (BTX) for parotidectomy has not been conducted yet. Herein, we report a pilot study investigating the safety and efficacy of intraoperative BTX (iBTX) injection in partial superficial parotidectomy (PSP).

Participants

Patients with benign parotid tumor were prospectively recruited for this clinical trial from 2017 to 2019. The study participants underwent PSP with iBTX injection. We retrospectively reviewed the clinical information of all the consecutive patients who underwent PSP without iBTX from 2013 to 2019. These patients were divided into the two groups: the iBTX group (n = 36) and the control group (n = 54).

Results

Permanent facial palsy was not observed in either group. None had transient marginal palsy in the iBTX group but 2 patients (3.7%) had it in the control group. The incidence of sialocele was significantly lower in the iBTX group than in the control group (2.8% vs. 20.4%, P<0.05). Although the incidence of salivary fistula was lower in the iBTX group than in the control group (0% vs. 7.4%), no significant difference was determined between the two groups (P=0.147). Total drainage volume was significantly lower in the iBTX group than in the control group (55.0ml vs. 116.6ml, P<0.001).

Conclusions

iBTX injection may be safe and effective in reducing sialocele and postoperative drainage in PSP. It might be a useful option to prevent saliva‐related complication after PSP.

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Primary Transoral Robotic Surgery +/‐ Adjuvant Therapy for Oropharyngeal Squamous Cell Carcinoma – a large observational single‐centre series from the United Kingdom

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Abstract

Objectives

To analyse the oncological outcomes following primary Transoral Robotic Surgery (TORS) for oropharyngeal squamous cell carcinoma (OPSCC).

Design

Observational case series.

Setting

Tertiary centre; first TORS practice to commence in the UK.

Participants

All consecutive patients undergoing primary TORS with curative intent, with or without adjuvant treatment.

Main outcome measures

Descriptive analysis of patient and tumour pathology variables. Survival outcomes: Overall, Disease‐Specific, Progression‐Free, and Locoregional control.

Results

The cohort comprised of 120 patients undergoing TORS with minimum 12 month follow up data and the following characteristics: mean age 58 years, 91 males (76%), 78 tonsil (65%) and 34 base of tongue primaries (28%), 89% HPV related OPSCC. The surgical pathology revealed 14 (12%) with positive margins, 19 (16%) had close margins < 2mm and 31% with extranodal extension.

The treatment was as follows: 39 (33%) treated with TORS alone, 50 (42%) received adjuvant radiotherapy, and 31 (26%) received adjuvant radiotherapy with chemotherapy.

There were 15 recurrences. Estimated survival for all patients at 3 years (95% CI): overall 85% (78‐92), disease‐specific 90% (85‐96), progression‐free 86% (79‐92), locoregional control 90% (84‐96). The equivalent survival figures for the HPV‐related cases alone were: overall 88% (82‐94), disease‐specific 93% (87‐98), progression‐free 88% (81‐95), locoregional control 92% (87‐98).

Conclusions

Whilst TORS has become a common practice in the management of OPSCC in the UK, these are the first reported oncological outcomes. For selected patients, TORS with or without adjuvant therapy is an appropriate treatment modality.

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Nasopharyngeal Carcinoma in Dermatomyositis

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Abstract

The most common cancer associated with dermatomyositis in NPC‐endemic populations is NPC. 90% of dermatomyositis patients with NPC were diagnosed with cancer within a year of myositis onset, whereas the most delayed presentation of NPC occurred 22 months after myositis onset. There was a greater proportion of subclinical early‐stage cancer in NPC associated with dermatomyositis compared to general NPC. Dermatomyositis patients with early‐stage NPC have good survival outcomes while those with advanced‐stage NPC appear to have poorer prognosis compared to general NPC patients. Dermatomyositis patients with anti‐transcription intermediary factor (TIF)‐1ƴ antibodies had a 14.5‐fold higher risk of developing associated cancers compared with seronegative dermatomyositis.

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Role of PD‐1/PD‐L1 inhibitors in the treatment of recurrent/metastatic head and neck squamous cell carcinoma: a systematic review and meta‐analysis

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Abstract

Background

The use of immunotherapy to treat recurrent/metastatic squamous cell carcinoma of the head and neck has become a popular research topic in recent years, and many clinical trials have been carried out.

Objectives

To systematically evaluate the efficacy and safety of PD‐1/PD‐L1 inhibitors in the treatment of recurrent/metastatic head and neck squamous cell carcinoma.

Methods

We searched PubMed, Embase, Cochrane Library and other databases up to 1 November 2019 for publications reporting the use of PD‐1/PD‐L1 inhibitors in the treatment of squamous cell carcinoma of the head and neck. Revman 5.0 was used for combination analysis, and the overall survival (OS), progression‐free survival (PFS), overall response rate (ORR), and adverse events were determined.

Results

Five articles were included. Compared with other treatment methods, this meta‐analysis showed that treatment with PD‐1/PD‐L1 inhibitors can significantly improve OS (P < 0.0001), but there was no significant improvement in PFS or ORR. The risk of anaemia and nausea was significantly reduced by treatment with PD‐1/PD‐L1 inhibitors.

Conclusions and Significance

Treatment with PD‐1/PD‐L1 inhibitors alone can improve the overall survival rate for recurrent/metastatic squamous cell carcinoma of the head and neck but there is no obvious advantage in other aspects and adverse events.

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Κυριακή 28 Μαρτίου 2021

Imaging findings of primary pulmonary synovial sarcoma with secondary distant metastases: A case report

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World J Clin Cases. 2021 Mar 16;9(8):1893-1900. doi: 10.12998/wjcc.v9.i8.1893.

ABSTRACT

BACKGROUND: Synovial sarcoma (SS) accounting for 6%-10% of primary soft tissue malignancies mainly occurs in deep soft tissue adjacent to joints of the limbs. Primary pulmonary SS (PPSS) is rare and has a poor prognosis. Cases of secondary distant metastases of PPSS occur rarely and there is a lack of corresponding imaging reports. We summarized the imaging findings of PPSS with multiple metastases confirmed by surgery and pathology, and shared valuable information on PPSS.

CASE SUMMARY: A 43-year-old female patient had a solid space occupying lesion in the right upper lobe of the lung. The results of a hemogram, erythrocyte sedimentation rate (ESR) and tumor markers were all within the normal range, tuberculin skin test (5 TU PPD) was negative (-). Chest computed tomography examination showed similar round soft tissue density in the posterior segment of the right upper lobe. Thoracoscopic-assisted wedge resection of the right upper lobe of the lung, right upper lobe resection and lymph node dissection were performed. Nine months after surgery, ultrasound examination showed multiple metastases on the chest wall and kidney.

CONCLUSION: PPSS is a rare malignant lung tumor with strong invasiveness, early distant metastasis and poor prognosis. There are very few imaging reports. PPSS is often manifested as irregular tumor and calcification, and the metastases have extremely low echo on ultrasonography. Contrast-enhanced ultrasound indicates that the arterial phase of tumor metastases shows rapid centripetal high enhancement, manifested as "fast forward and fast regression".

PMID:33748239 | PMC:PMC7953401 | DOI:10.12998/wjcc.v9.i8.1893

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Extracorporeal membrane oxygenation for coronavirus disease 2019-associated acute respiratory distress syndrome: Report of two cases and review of the literature

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World J Clin Cases. 2021 Mar 16;9(8):1953-1967. doi: 10.12998/wjcc.v9.i8.1953.

ABSTRACT

BACKGROUND: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus-2, is a worldwide pandemic. Some COVID-19 patients develop severe acute respiratory distress syndrome and progress to respiratory failure. In such cases, extracorporeal membrane oxygenation (ECMO) treatment is a necessary life-saving procedure.

CASE SUMMARY: Two special COVID-19 cases-one full-term pregnant woman and one elderly (72-year-old) man-were treated by veno-venous (VV)-ECMO in the Second People's Hospital of Zhongshan, Zhongshan City, Guangdong Province, China. Both patients had developed refractory hypoxemia shortly after hospital admission, despite conventional support, and were therefore managed by VV-ECMO. Although both experienced multiple ECMO-related complications on top of the COVID-19 disease, their conditions improved gr adually. Both patients were weaned successfully from the ECMO therapy. At the time of writing of this report, the woman has recovered completely and been discharged from hospital to home; the man remains on mechanical ventilation, due to respiratory muscle weakness and suspected lung fibrosis. As ECMO itself is associated with various complications, it is very important to understand and treat these complications to achieve optimal outcome.

CONCLUSION: VV-ECMO can provide sufficient gas exchange for COVID-19 patients with acute respiratory distress syndrome. However, it is crucial to understand and treat ECMO-related complications.

PMID:33748247 | PMC:PMC7953388 | DOI:10.12998/wjcc.v9.i8.1953

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Cardiac rehabilitation and its essential role in the secondary prevention of cardiovascular diseases

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World J Clin Cases. 2021 Mar 16;9(8):1761-1784. doi: 10.12998/wjcc.v9.i8.1761.

ABSTRACT

Cardiovascular diseases are the most common causes of mortality worldwide. They are frequently the reasons for patient hospitalization, their incapability for work, and disability. These diseases represent a significant socio-economic burden affecting the medical system as well as patients and their families. It has been demonstrated that the etiopathogenesis of cardiovascular diseases is significantly affected by lifestyle, and so modification of the latter is an essential component of both primary and secondary prevention. Cardiac rehabilitation (CR) represents an efficient secondary prevention model that is especially based on the positive effect of regular physical activity. This review presents an overview of basic information on CR with a focus on current trends, such as the issue of the various training modalities, utilization, and barriers t o it or the use of telemedicine technologies. Appropriate attention should be devoted to these domains, as CR continues evolving as an effective and readily available intervention in the future.

PMID:33748226 | PMC:PMC7953385 | DOI:10.12998/wjcc.v9.i8.1761

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Human parvovirus B19-associated early postoperative acquired pure red cell aplasia in simultaneous pancreas-kidney transplantation: A case report

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World J Clin Cases. 2021 Mar 16;9(8):1968-1975. doi: 10.12998/wjcc.v9.i8.1968.

ABSTRACT

BACKGROUND: Acquired pure red cell aplasia (aPRCA) related to human parvovirus B19 (HPV B19) is rarely reported in simultaneous pancreas-kidney transplantation (SPKT) recipients; there has yet to be a case report of early postoperative infection. In this current study, we report the case of a Chinese patient who experienced the disease in the early postoperative period.

CASE SUMMARY: A 63-year-old man, with type 2 diabetes and end-stage renal disease, received a brain dead donor-derived SPKT. Immunosuppression treatment consisted of tacrolimus, prednisone, enteric-coated mycophenolate sodium (EC-MPS), and thymoglobulin combined with methylprednisolone as induction. The hemoglobin (Hb) level declined due to melena at postoperative day (POD) 3, erythropoietin-resistant anemia persisted, and reticulocytopenia was diagnosed at POD 20. The bone mar row aspirate showed decreased erythropoiesis and the presence of giant pronormoblasts at POD 43. Metagenomic next-generation sequencing (mNGS) of a blood sample identified HPV B19 infection at POD 66. EC-MPS was withdrawn; three cycles of intravenous immunoglobulin (IVIG) infusion therapy were administered; and tacrolimus was switched to cyclosporine. The HPV B19-associated aPRCA resolved completely and did not relapse within the 1-year follow-up period. The diminution in mNGS reads was correlated with Hb and reticulocyte count improvements.

CONCLUSION: HPV B19-associated aPRCA can occur at an early period after SPKT. An effective therapy regimen includes IVIG infusion and adjustment of the immuno-suppressive regimen. Moreover, mNGS can be used for the diagnosis and to reflect disease progression.

PMID:33748248 | PMC:PMC7953402 | DOI:10.12998/wjcc.v9.i8.1968

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