Αρχειοθήκη ιστολογίου

Αλέξανδρος Γ. Σφακιανάκης
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5
Άγιος Νικόλαος Κρήτη 72100
2841026182
6032607174

Τρίτη 9 Νοεμβρίου 2021

Improvement of Pulmonary Function in Arthrogryposis Multiplex Congenita Patients Undergoing Posterior Spinal Fusion Surgery for Concomitant Scoliosis: A Minimum of 3-Year Follow-up

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World Neurosurg. 2021 Oct 20:S1878-8750(21)01612-0. doi: 10.1016/j.wneu.2021.10.115. Online ahead of print.

ABSTRACT

OBJECTIVE: We sought to investigate the long-term outcome of pulmonary function for arthrogryposis multiplex congenita (AMC) patients undergoing posterior spinal fusion (PSF) and to further determine influential factors.

METHODS: Eighteen AMC patients with a minimum of 3-year follow-up after PSF were prospectively collected. All the patients underwent a pulmonary function test before surgery and at the final follow-up. The percentage predicted values of vital capacity (VC%) and forced vital capacity (FVC%) were recorded. The following radiographic parameters were collected including Cobb angle and thoracic kyphosis. The total lung volumes (TLV) were measured on the image of 3-dimensional computed tomography scan by the reconstruction software.

RESULTS: There were 10 males and 8 females with a mean age of 13.8 ± 6.1 years. The mean preoperative VC% and FVC% were 40.5% ± 7.6% and 39.5% ± 4.7%, which were significantly increased to 52.0% ± 7.5% and 51.2% ± 6.8% at the final follow-up (P < 0.001). Besides, there was remarkable improvement in terms of TLV (1.57 ± 0.2 L vs. 2.39 ± 0.6 L, P < 0.001). Remarkable correlations were observed between TLV and pulmonary function tests (r = 0.79, P < 0.001 for VC%; r = 0.78, P < 0.001 for FVC%). Multiple regression analysis showed that 2 variables including Δ thoracic kyphosis and Δ Cobb angle were independently associated with the improvement of pulmonary function.

CONCLUSIONS: The pulmonary function of AMC patients can be well improved through PSF surgery. It was remarkably associated with the correction of curve magnitude and restoration of thoracic kyphosis.

PMID:34687931 | DOI:10.1016/j.wneu.2021.10.115

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Pediatric Intracranial Hypotension and Post-Dural Puncture Headache

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Semin Pediatr Neurol. 2021 Dec;40:100927. doi: 10.1016/j.spen.2021.100927. Epub 2021 Sep 3.

ABSTRACT

Pediatric intracranial hypotension can occur acutely following iatrogenic dural puncture for diagnostic or therapeutic purposes, or chronically from cerebrospinal fluid leak. The incidence of intracranial hypotension in children is not fully known. However, many steps can be taken to reduce the risk of a child developing a post-dural puncture headache. Other causes of intracranial hypotension, such as spontaneous intracranial hypotension or CSF fistulas, are rare and with little pediatric data to guide evaluation and management. This manuscript reviews the risk factors, diagnostic evaluations, and treatments for post-dural puncture headache, as well as a limited discussion of spontaneous intracranial hypotension as it may pertain to children and adolescents.

PMID:34749914 | DOI:10.1016/j.spen.2021.100927

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Drainage of intraorbital abscess in infant via endoscopic nasalsinus approach: a case report

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1204-1206. doi: 10.3760/cma.j.cn115330-20201223-00946.

NO ABSTRACT

PMID:34749461 | DOI:10.3760/cma.j.cn115330-20201223-00946

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Resection and free flap repair of recurrent maxillofacial and paranasal sinus skull base malignant tumor: report of 9 cases

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1179-1184. doi: 10.3760/cma.j.cn115330-20210223-00082.

ABSTRACT

Objective: To investigate the treatment method and effect of surgical resection and free flap repair of recurrent malignant tumors of maxillofacial paranasal sinus and skull base. Methods: The clinical data of 9 patients with recurrent maxillofacial paranasal sinus and skull base malignant tumors who underwent surgical resection and free flap repair in the Department of Otorhinolaryngology Head and Neck Surgery of Shandong Provincial Hospital from August 2009 to May 2019 were analyzed retrospectively, including 5 males and 4 females, aged 32-69 years. There were 4 cases of squamous cell carcinoma, 3 cases of adenoid cystic carcinoma, 1 case of myoepithelial carcinoma and 1 case of malignant fibrous histiocytoma. All patients were repaired with anterolateral femoral flap. The treatment process an d postoperative effect were analyzed by descriptive statistics. Results: All patients were followed up from 16 months to 6 years. There were 6 cases of recurrence after operation, including 1 case of local recurrence and 5 cases of skull base and craniocerebral recurrence. The median tumor free survival time of recurrent patients was 35 months. Conclusion: Surgical resection and free flap repair can effectively prolong the life of patients with recurrent maxillofacial paranasal sinus and skull base malignant tumors.

PMID:34749457 | DOI:10.3760/cma.j.cn115330-20210223-00082

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Rhinocerebral mucormycosis secondary to acute leukemia: a case report

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1207-1209. doi: 10.3760/cma.j.cn115330-20210122-00030.

NO ABSTRACT

PMID:34749462 | DOI:10.3760/cma.j.cn115330-20210122-00030

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Clinical features of vestibular syncope associated with tumarkin attacks in delayed endolymphatic hydrops

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1194-1198. doi: 10.3760/cma.j.cn115330-20201208-00912.

ABSTRACT

Objective: To analyze the clinical characteristics of vestibular syncope (VS) associated with drop attacks (DA) in delayed endolymphatic hydrops (DEH). Methods: DEH cases with complete data were retrospectively analyzed, including three DEH cases with DA and VS (VS group), and six DEH cases without DA or VS (control group). The clinical profile, the results of neurotological examinations [such as pure tone audiometry, electrocochleography (EcochG), caloric test, vestibular evoked myogenic potentials (VEMP), and video head impulse test (vHIT)] and treatment outcomes were analyzed. Results: (1) In the VS group, there were three cases of ipsilateral DEH; in the control group, there were six cases of ipsilateral type. One case in each group had a history of migraine. (2) The prevalence of abn ormal results in caloric test, vHIT, cervical VEMP, and ocular VEMP in the VS group was 3/3, 1/3, 2/2, and 2/2, respectively, and in the control group was 3/6, 0/3, 1/6, and 4/6, respectively. Two cases in each group underwent EcochG, and no identifiable waveform was elicited on the affected side, and-SP/AP ratio of unaffected side was less than 0.4. (3) Patients in both groups were initially treated with conservative medication. Two cases in the VS group subsequently received intratympanic injections of dexamethasone. No DA or VS occurred during a follow-up period lasting over one year. All patients achieved good control of vertigo during the follow-up period. Conclusions: VS may occur in the patients with DEH. The differential diagnosis of syncope in patients with otogenic vertiginous disease can help improve clinical diagnosis and treatment.

PMID:34749459 | DOI:10.3760/cma.j.cn115330-20201208-00912

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Clinical comparative study of free posterior tibial artery perforator flap and radial forearm free flap for head and neck reconstruction

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1158-1163. doi: 10.3760/cma.j.cn115330-20210518-00280.

ABSTRACT

Objective: To compare the clinical application results of the FPTF (free posterior tibial artery perforator flap) and RFFF (radial forearm free flap) for reconstruction of head and neck defects. Methods: A retrospective analysis of 27 cases treated with FPTF (19 males and 8 females, aged 14-69 years) and 24 cases with RFFF (11 males and 13 females, aged 22-69 years) for head and neck defect reconstruction at Beijing Tongren Hospital of Capital Medical University from January 2015 to December 2020 was conducted. Flap size, vascular pedicle length, matching degree of recipient area blood vessels, preparation time, total operation time, hospital stay, recipient area complications, donor area complications and scale-based patient satisfaction were compared between two groups of patients with FTPF an d RFFF. SPSS 26.0 statistical software was used for statistical analysis. Results: There was no statistically significant difference between the two groups of patients in tumor T staging (P=0.38), primary sites (P=0.05) and mean flap areas ((53.67±29.84) cm2 vs. (41.13±11.08) cm2, t=-1.472, P=0.14). However the mean vascular pedicle length of FPTF was more than that of RFFF ((11.15±2.48)cm vs. (8.50±1.69)cm, t=-4.071, P<0.01). The donor sites of 4 patients in FPTF group could be sutured directly, while all the 24 patients in RFFF group received skin grafts from the donor sites. There was no statistically significant difference in the recipient area arteries between two groups of flaps (P=0.10), with more commonly using of the facial artery (RFFF: FPTF=21∶27), but there was significant difference in the recipient area veins (P<0.01), with more commonly using of the external jugular vein in RFFF (14/24) than FPTF (4/32) and the posterior facial vein in FPTF (27/32) than RFFF (9/24). There were 10 recipient complications and 3 donor complications in RFFF group; no recipient complication and 3 donor complications occurred in FPTF group. With patient's subjective evaluation of the donor site at 12 months after surgery, FPTF was better than RFFF (χ²=22.241, P<0.01). Conclusions: FPTF is an alternative to RFFF in head and neck reconstruction and has unique advantages in aesthetics and clinical application.

PMID:34749454 | DOI:10.3760/cma.j.cn115330-20210518-00280

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Application progress of profunda femoris perforating artery perforator flap in reconstruction of oral maxillofacial head and neck defects

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1224-1228. doi: 10.3760/cma.j.cn115330-20210705-00428.

NO ABSTRACT

PMID:34749466 | DOI:10.3760/cma.j.cn115330-20210705-00428

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Classification and reconstruction of complex defects after lateral facial tumor surgery

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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Nov 7;56(11):1144-1149. doi: 10.3760/cma.j.cn115330-20210623-00370.

ABSTRACT

Objective: To explore the classification and reconstruction strategy of defects in lateral face region after operation of malignant tumors. Methods: Eighteen cases with the reconstruction of complicated defects after resection of tumors in the region of lateral face from January 2015 to January 2018 in Hunan Cancer Hospital were retrospectively reviewed. There were 14 males and 4 females, aged from 32 to 68 years. According to the presence or absence of bony scaffold, complicated defects were divided into two main categories: soft tissue perforating defects and soft tissue defects combined with bony scaffold defects. All soft tissue perforating defects in 5 cases were repaired with free anterolateral femoral flaps. Among 13 cases with soft tissue plus bony scaffold defects, 3 were repaired with free fibular flaps, 6 with free fibular flaps combined with free anterolateral femoral flaps, and 4 with chimeric deep circumflex iliac artery perforator flaps combined with anterolateral femoral flaps. Results: All flaps survived well. Two patients complicated with fistula in floor of mouth, but the wound healed after dressing change. Transoral feeding was resumed within 2 weeks after surgery in all patients. One year follow-up evaluation showed that 14 cases had symmetrical face and 10 cases had mouth opening more than 3 transverse fingers. After 36-50 months of follow-up, 6 patients died, with an overall 3-year survival rate of 66.7%. Conclusion: The classification of defects with or without bony stent loss is conducive to the overall repair design, the recovery of facial contour stent, the effective fill of dead space and the maintain of residual occlusal relationship. Good reconstruction results require a multi flap combination of osteocutaneous and soft tissue fl aps.

PMID:34749452 | DOI:10.3760/cma.j.cn115330-20210623-00370

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Comparison between planar and single-photon computed tomography images for radiation intensity quantification in iodine-131 scintigraphy

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Sci Rep. 2021 Nov 8;11(1):21858. doi: 10.1038/s41598-021-01432-x.

ABSTRACT

This study aimed to evaluate the feasibility of quantifying iodine-131 (131I) accumulation in scintigraphy images and compare planar and single-photon emission computed tomography (SPECT) images to estimate 131I radioactivity in patients receiving radioactive iodine therapy for thyroid cancer. We evaluated 72 sets of planar and SPECT images acquired between February 2017 and December 20 18. Simultaneously, we placed a reference 131I capsule next to the patient during image acquisition. We evaluated the correlation between the intensity of the capsule in the images and the capsule dose and estimated the radiation dose at the thyroid bed. The mean capsule dose was 2.14 MBq (range, 0.63-4.31 MBq). The correlation coefficients (p-value) between capsule dose and maximum and mean intensities in both planar and SPECT images were 0.93 (p < 0.01), 0.96 (p < 0.01), 0.60 (p < 0.01), and 0.47 (p < 0.01), respectively. The mean intensities of planar images show the highest correlation coefficients. Based on a regression equation, the average radiation dose in the thyroid bed was 5.9 MBq. In conclusion, planar images reflected the radiation dose more accurately than SPECT images. The regression equation allows to determine the dose in other regions, such as the thyroid bed or sites of distant metastasis.

PMID:34750482 | DOI:10.1038/s41598-021-01432-x

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Capsaicin restores sodium iodine symporter-mediated radioiodine uptake through bypassing canonical TSH-TSHR pathway in anaplastic thyroid carcinoma cells

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J Mol Cell Biol. 2021 Nov 9:mjab072. doi: 10.1093/jmcb/mjab072. Online ahead of print.

ABSTRACT

Anaplastic thyroid cancer (ATC) is a rare but highly lethal disease. ATCs are resistant to standard therapies and are extremely difficult to manage. The stepwise cell dedifferentiation results in the impairment of the iodine-metabolizing machinery and the infeasibility of radioiodine treatment in ATC. Hence, re-inducing iodine-metabolizing gene expression to restore radioiodine avidity i s considered as a promising strategy to fight against ATC. In the present study, capsaicin (CAP), a natural potent transient receptor potential vanilloid type 1 (TRPV1) agonist, was discovered to re-induce ATC cell differentiation and to increase the expression of thyroid transcription factors (TTFs including TTF-1, TTF-2, and PAX8) and iodine-metabolizing proteins, including thyroid stimulating hormone receptor (TSHR), thyroid peroxidase, and sodium iodine symporter (NIS), in two ATC cell lines, 8505C and FRO. Strikingly, CAP treatment promoted NIS glycosylation and its membrane trafficking, resulting in a significant enhancement of radioiodine uptake of ATC cells in vitro. Mechanistically, CAP activated TRPV1 channel and subsequently triggered Ca2+ influx, cyclic adenosine monophosphate (cAMP) generation, and cAMP responsive element binding protein (CREB) signal activation. Next, CREB recognized and bound to the promoter of SLC5A5 to facilitate its transcription. Moreover, the TRP V1 antagonist CPZ, the calcium chelator BAPTA, and the PKA inhibitor H-89 effectively alleviated the re-differentiation exerted by CAP, demonstrating that CAP might improve radioiodine avidity through the activation of the TRPV1‒Ca2+/cAMP/PKA/CREB signaling pathway. In addition, our study indicated that CAP might trigger a novel cascade to re-differentiate ATC cells and provide unprecedented opportunities for radioiodine therapy in ATC, bypassing canonical TSH‒TSHR pathway.

PMID:34751390 | DOI:10.1093/jmcb/mjab072

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