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1.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 2): 937-942, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36452623

RESUMEN

It has been observed that nasal packing following septoplasty contributes to co-morbidities like post-operative pain, bleeding and increased duration of hospital stay. Trans-septal suturing has been suggested as a safe and effective alternative with a view to obviate the need for nasal packing and the hence avoid the discomfort associated with it. To compare the outcome of trans-septal suturing technique with merocel nasal packing after septoplasty. This was a prospective comparative study done on 60 patients who underwent septoplasty. The patients were divided randomly into 2 groups, while Group A comprised of patients undergoing Post-operative nasal packing with poly vinyl alcohol sponge (also commercially called Merocel), Group B included patients who underwent nasal septal suturing after surgery. The postoperative pain, hemorrhage and duration of hospital stay were the main parameters that were assessed and a comparison was drawn between the post-operative outcome of two techniques. Post-operative global pain score was 62.18 ± 4.75 in the group A (patients with nasal packing) and 24.73 ± 4.29 (patients with trans-septal suturing) in group B ('p'value was < 0.0001). Post-operative bleeding was noticed in 19 patients (out of 30) in group A, and in 2 patients of group B ('p'value was < 0.0001). 27 out of 30 patients of Group A were discharged on day 2 whereas 24 out of 30 patients of Group B required only 1 day of hospital stay after the surgery ('p' value was < 0.0001). Trans-septal suturing technique reduces the duration of hospital stay, causes lesser post-operative bleeding and pain and is a relatively less painful technique than merocel nasal packing.

2.
J Hosp Leis Sport Tour Educ ; 30: 100360, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34840528

RESUMEN

Academic research in tourism and hospitality sector adds value directly to the way the industry grows and develops. Scholars in this area struggle with the pressures to publish in high ranking journals. The present study attempts to help doctoral students and tourism educators in identifying emerging themes in the tourism and hospitality arising out after COVID-19 pandemic. Using bibliometric analysis, five broad areas of emerging research themes are identified. Such research would further help managers, tourism related state administrators, and firm owners to recover from the devastating impact of COVID-19 on the industry across the world.

3.
Indian J Otolaryngol Head Neck Surg ; 71(Suppl 2): 1391-1395, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31750183

RESUMEN

To evaluate predictive value of high resolution computed tomography in atticoantral disease. We conducted a prospective observational study in 49 patients suffering from atticoantral disease at tertiary referral institute. Preoperatively, all the patients underwent unenhanced high resolution computed tomography (HRCT) of temporal bone parallel to orbitomeatal line by using multislice scanner. We evaluated presence of soft tissue attenuation, ossicular erosion, facial canal erosion, dural exposure, erosion of semicircular canal, labyrinthine fistula, erosion of scutum and tegmen tympani in CT scan. HRCT is recommended in atticoantral disease with complications. This study demonstrates the predictive value of HRCT of temporal bone as a diagnostic modality in atticoantral disease. HRCT shows 100% sensitivity (Sn) of soft tissue density detected in middle ear, aditus and attic. Specificity (Sp) was more for eustechian tube area and sinus tympani. Ossicular erosions of malleus (Sn = 90.9%, Sp = 75%), incus (Sn = 93.2%, Sp = 80%), stapes (Sn = 78.8%, Sp = 68.8%) were detected. Erosion of scutum (Sn = 94.1%, Sp = 80%), tegmen (Sn = 66.7%, Sp = 100%), sinus plate (Sn = 100%, Sp = 97.9%), facial nerve canal (Sn = 75%, Sp = 100%), semicircular canal fistula (Sn = 80%, Sp = 97.7%) and cochlear promontory fistula (Sn = 50%, Sp = 97.9%) were evaluated. HRCT temporal bone helps to evaluate disease extent and involvement of surrounding structures. Hence it helps in deciding surgical approach and also prevents impending complications.

4.
Indian J Otolaryngol Head Neck Surg ; 71(Suppl 3): 2065-2071, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31763295

RESUMEN

Rhinosinusitis is defined as an inflammatory process involving the mucosa of the nose and one or more of the paranasal sinuses. Rhinosinusitis is not associated with increased mortality, but may have an impact on the quality of life (QOL). Current study is aimed at investigating the role of FESS in the enhancement of QOL of the patients with rhinosinusitis. Several instruments have been designed to assess the QOL, among which Glasgow Benefit Inventory (GBI) questionnaire, has been used in this study. This cross sectional study of duration of 1 year and 6 months was conducted on 30 patients between the age group 18-60 years in the Department of Otorhinolaryngology at Safdarjung Hospital in New Delhi. Our results showed that FESS was associated with improved QOL in patients with Chronic Sinusitis. Observations were made on the basis of the GBI questionnaire which is designed to measure outcomes of the surgical procedures in form of 4 different scores. Mean total score before surgery was (-) 65.28 ± 7.39 and after surgery was 21.22 ± 11.24. Mean general Subscale Score before surgery was (-) 60.56 ± 9.14 and after surgery was 25.28 ± 13.40. Mean Social Support Score before surgery was (-) 79.44 ± 14.31 and after surgery was 17.78 ± 16.34. Mean Physical Health score before surgery was (-) 70.00 ± 10.17 and after surgery 10.00 ± 14.25. A statistically significant improvement was observed in all the four scores before and after surgery. The present study demonstrates that radical surgery has led to improvement in the QOL of chronic rhinosinusitis.

5.
Indian J Otolaryngol Head Neck Surg ; 71(Suppl 1): 221-229, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31741963

RESUMEN

Adenotonsillectomy is a widely practiced surgical intervention to manage obstructive sleep apnoea syndrome (OSAS) in the paediatric age group. We conducted a prospective, non randomised, interventional study among 40 patients in paediatric age group (2-18 years) suffering from adenotonsillar hypertrophy with an indication of adenotonsillectomy based on American Academy of Otolaryngology-Head and Neck Surgery criteria. Care givers completed the obstructive sleep apnoea 18 (OSA 18) quality of life (QoL) survey and Rutter Children's Behaviour Questionnaire (RCBQ) before adenotonsillectomy as well as 6 months after surgery. We found that mean score of OSA 18 and total RCBQ decreased significantly 6 months after surgery. The mean score of OSA 18 (4.12 ± 1.4) and total RCBQ score (20.5 ± 2) significantly reduced to 1.19 ± 0.12 and 7.4 ± 2.55 (p < 0.0001), respectively, after surgery. There was significant improvement in all the domains of OSA 18 score after intervention including sleep disturbance (mean score change 2.56, p < 0.0001), physical suffering (2.99, p < 0.0001), emotional distress (2.71, p < 0.0001), daytime problems (2.56, p < 0.0001), caregiver concerns (3.76, p < 0.0001). We also observed that QoL as well as behaviour was independent of age and gender of patients. This study demonstrates significant score changes across all questionnaire domains, comparing pre and post operative data indicating an improvement in their quality of life and behaviour. Hence, we advocate that adenotonsillectomy may be considered as an effective treatment in properly selected patients with OSAS.

6.
Indian J Pediatr ; 84(4): 276-282, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28233255

RESUMEN

OBJECTIVE: To evaluate Magnetic resonance imaging (MRI) as a tool to quantify liver and cardiac iron in Indian population with thalassemia major, and correlate liver and cardiac iron values with that of serum ferritin (SF). METHODS: Fifty patients aged between 8 to 18 y, with thalassemia major on regular blood transfusions and oral iron chelation therapy were enroled in the study. Twenty patients within the same age group, having no history of blood transfusions and no liver or cardiac disease were taken as controls. T2* MRI of heart and liver and SF estimation was done for all the cases as well as controls. All MRI scans were done on a 1.5-T Siemens MRI scanner using body coil. RESULTS: The mean SF among cases was 2150 ng/ml (SD 2179). Significant correlation was found in patients between liver iron concentration (LIC, mean 15) and SF levels (r = 0.522; p < 0.001), and also significant but weaker correlation was found in patients between myocardial iron concentration (MIC, mean 1.3) and SF levels (r = 0.483; p < 0.001). Seventeen (34%) patients had a SF of <1000 ng/ml. Of these, 11 and 3 patients respectively had LIC and MIC more than normal range. CONCLUSIONS: T2* MRI is a valuable non-invasive tool for quantification of liver and cardiac iron deposition in patients with thalassemia major. It can demonstrate high LIC and MIC, even though the targeted SF levels are low in thalassemia, indicating the need for escalation of the chelation therapy. This needs to be confirmed on full-fledged larger prospective studies.


Asunto(s)
Corazón/diagnóstico por imagen , Sobrecarga de Hierro/diagnóstico , Hierro/metabolismo , Hígado/diagnóstico por imagen , Hígado/metabolismo , Imagen por Resonancia Magnética , Miocardio/metabolismo , Talasemia/diagnóstico por imagen , Talasemia/metabolismo , Adolescente , Niño , Femenino , Ferritinas/sangre , Humanos , Masculino , Proyectos Piloto , Estudios Prospectivos
7.
Plant Physiol Biochem ; 89: 100-6, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25734328

RESUMEN

Stevia rebaudiana (Bertoni) produces steviol glycosides (SGs)--stevioside (stev) and rebaudioside-A (reb-A) that are valued as low calorie sweeteners. Inoculation with arbuscular mycorrhizal fungi (AMF) augments SGs production, though the effect of this interaction on SGs biosynthesis has not been studied at molecular level. In this study transcription profiles of eleven key genes grouped under three stages of the SGs biosynthesis pathway were compared. The transcript analysis showed upregulation of genes encoding 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway enzymes viz.,1-deoxy-D-xylulose 5-phospate synthase (DXS), 1-deoxy-D-xylulose 5-phospate reductoisomerase (DXR) and 2-C-methyl-D-erytrithol 2,4-cyclodiphosphate synthase (MDS) in mycorrhizal (M) plants. Zn and Mn are imperative for the expression of MDS and their enhanced uptake in M plants could be responsible for the increased transcription of MDS. Furthermore, in the second stage of SGs biosynthesis pathway, mycorrhization enhanced the transcription of copalyl diphosphate synthase (CPPS) and kaurenoic acid hydroxylase (KAH). Their expression is decisive for SGs biosynthesis as CPPS regulates flow of metabolites towards synthesis of kaurenoid precursors and KAH directs these towards steviol synthesis instead of gibberellins. In the third stage glucosylation of steviol to reb-A by four specific uridine diphosphate (UDP)-dependent glycosyltransferases (UGTs) occurs. While higher transcription of all the three characterized UGTs in M plants explains augmented production of SGs; higher transcript levels of UGT76G1, specifically improved reb-A to stev ratio implying increased sweetness. The work signifies that AM symbiosis upregulates the transcription of all eleven SGs biosynthesis genes as a result of improved nutrition and enhanced sugar concentration due to increased photosynthesis in M plants.


Asunto(s)
Diterpenos de Tipo Kaurano/biosíntesis , Genes de Plantas , Glucósidos/biosíntesis , Glicosiltransferasas/metabolismo , Micorrizas , Proteínas de Plantas/metabolismo , Stevia/metabolismo , Simbiosis , Diterpenos de Tipo Kaurano/genética , Eritritol/análogos & derivados , Eritritol/metabolismo , Regulación de la Expresión Génica de las Plantas , Glucósidos/genética , Glicósidos/biosíntesis , Glicósidos/genética , Glicosiltransferasas/genética , Manganeso/metabolismo , Fotosíntesis , Proteínas de Plantas/genética , Stevia/enzimología , Stevia/genética , Fosfatos de Azúcar/metabolismo , Edulcorantes , Transcripción Genética , Uridina Difosfato/metabolismo , Zinc/metabolismo
8.
Mycorrhiza ; 25(5): 345-57, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25366131

RESUMEN

It is becoming increasingly evident that the formation of arbuscular mycorrhiza (AM) enhances secondary metabolite production in shoots. Despite mounting evidence, relatively little is known about the underlying mechanisms. This study suggests that increase in artemisinin concentration in Artemisia annua colonized by Rhizophagus intraradices is due to altered trichome density as well as transcriptional patterns that are mediated via enhanced jasmonic acid (JA) levels. Mycorrhizal (M) plants had higher JA levels in leaf tissue that may be due to induction of an allene oxidase synthase gene (AOS), encoding one of the key enzymes for JA production. Non-mycorrhizal (NM) plants were exogenously supplied with a range of methyl jasmonic acid concentrations. When leaves of NM and M plants with similar levels of endogenous JA were compared, these matched closely in terms of shoot trichome density, artemisinin concentration, and transcript profile of artemisinin biosynthesis genes. Mycorrhization increased artemisinin levels by increasing glandular trichome density and transcriptional activation of artemisinin biosynthesis genes. Transcriptional analysis of some rate-limiting enzymes of mevalonate and methyl erythritol phosphate (MEP) pathways revealed that AM increases isoprenoids by induction of the MEP pathway. A decline in artemisinin concentration in shoots of NM and M plants treated with ibuprofen (an inhibitor of JA biosynthesis) further confirmed the implication of JA in the mechanism of artemisinin production.


Asunto(s)
Artemisia annua/microbiología , Artemisia annua/fisiología , Artemisininas/metabolismo , Ciclopentanos/metabolismo , Regulación de la Expresión Génica de las Plantas , Micorrizas/fisiología , Oxilipinas/metabolismo , Vías Biosintéticas/genética , Oxidorreductasas Intramoleculares/genética , Oxidorreductasas Intramoleculares/metabolismo , Hojas de la Planta/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Raíces de Plantas/microbiología
9.
Eur Arch Otorhinolaryngol ; 272(2): 289-95, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24318471

RESUMEN

The purpose of the study was to review the clinical features, complications, surgical management and post-operative outcomes of medially invasive extensive cholesteatomas and intracranial complications of cholesteatoma. The retrospective review was carried out at a tertiary referral center and included 20 patients presenting with extensive intratemporal cholesteatomas between 2011 and 2013. Inclusion criteria were involvement of the labyrinth, facial nerve, posterior fossa dura and intracranial complications. The mean age of the patients was 20 years. Profuse foul-smelling otorrhoea and severe otalgia/temporal headache were the most common presenting features. Intracranial complications were observed in nine patients, most commonly temporal lobe abscess; 14/20 patients exhibited profound hearing loss. One case exhibited massive labyrinthine petrous apex cholesteatoma. Labyrinthine destruction was seen in all cases of facial nerve involvement. Management of intracranial complications preceded canal wall-down mastoidectomy with or without partial labyrinthectomy and subtotal petrosectomy (transotic) with blind sac closure for petrous cholesteatoma. Facial nerve infiltration was observed in one case, whereas eight cases exhibited gross dehiscence of the fallopian canal. Disease clearance was complete in all cases with two mortalities in patients with intracranial complications. Post-operative course was uncomplicated in all other patients apart from a case of wound dehiscence. All patients remain disease free after a minimum and maximum follow-up of 6 months and 2 years, respectively. Extensive intratemporal cholesteatomas and intracranial complications caused by them continue to pose a challenge to the management of otitis media in the current era and merit early recognition, surgical management and follow-up.


Asunto(s)
Colesteatoma del Oído Medio/complicaciones , Colesteatoma del Oído Medio/diagnóstico , Colesteatoma del Oído Medio/cirugía , Absceso Encefálico/etiología , Otorrea de Líquido Cefalorraquídeo/etiología , Niño , Colesteatoma del Oído Medio/diagnóstico por imagen , Dolor de Oído/etiología , Parálisis Facial/etiología , Femenino , Fiebre/etiología , Fístula/etiología , Fístula/cirugía , Cefalea/etiología , Pérdida Auditiva/etiología , Humanos , Masculino , Apófisis Mastoides/cirugía , Meningitis/etiología , Radiografía , Estudios Retrospectivos , Vértigo/etiología , Vestíbulo del Laberinto/cirugía , Adulto Joven
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