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1.
Pediatr Infect Dis J ; 2024 Jun 25.
Article in English | MEDLINE | ID: mdl-38916924

ABSTRACT

BACKGROUND: Invasive fungal sinusitis, particularly mucormycosis, presents a significant clinical challenge, especially in pediatric populations. This retrospective epidemiologic study aimed to investigate the clinical characteristics, risk factors and outcomes associated with this rare but severe condition, with a focus on orbital morbidity. METHODS: Clinical data of 12 pediatric patients diagnosed with invasive fungal sinusitis between 2021 and 2023 were retrospectively analyzed. Diagnosis involved microbiological and histopathologic examinations, alongside radiologic imaging. Treatment comprised surgical intervention and antifungal therapy, with a detailed evaluation of orbital involvement. Statistical analysis included descriptive statistics and logistic regression. RESULTS: Predominantly affecting males, the median age of the patients was 8 years. Common symptoms included orbital swelling and impaired vision. Imaging revealed characteristic features of invasive fungal sinusitis, including fat stranding and bone erosions. Orbital involvement was extensive, with poor visual outcomes observed in several cases. Surgical debridement and antifungal therapy, including transcutaneous retrobulbar Amphotericin B, were administered. Risk factors associated with poor orbital outcomes included duration of diabetes and glycated hemoglobin levels. Mortality rate stood at 22.2%. CONCLUSIONS: Early diagnosis, aggressive surgical intervention and combined antifungal therapy are essential for improving outcomes. Timely intervention showed stabilization of the orbital disease and better outcomes in pediatric patients. Further research with larger sample sizes is warranted to better understand and address this serious condition.

2.
Eur Arch Otorhinolaryngol ; 281(7): 3547-3555, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38294508

ABSTRACT

INTRODUCTION: Round window approach and cochleostomy approach can have different depth of electrode insertion during cochlear implantation which itself can alter the audiological outcomes in cochlear implant. OBJECTIVE: The current study was conducted to determine the difference in the depth of electrode insertion via cochleostomy and round widow approach when done serially in same temporal bone. METHODOLOGY: This is a cross-sectional study conducted in the Department of Otorhinolaryngology in conjunction with Department of Anatomy and Department of Diagnostic and Interventional Radiology over a period of 1 year. 12-electrode array insertion was performed via either approach (cochleostomy or round window) in the cadaveric temporal bone. HRCT temporal bone scan of the implanted temporal bone was done and depth of insertion and various cochlear parameters were calculated. RESULT: A total of 12 temporal bones were included for imaging analysis. The mean cochlear duct length was 32.892 mm; the alpha and beta angles were 58.175° and 8.350°, respectively. The mean angular depth of electrode insertion via round window was found to be 325.2° (SD = 150.5842) and via cochleostomy 327.350 (SD = 112.79) degree and the mean linear depth of electrode insertion via round window was found to be 18.80 (SD = 4.4962) mm via cochleostomy 19.650 (SD = 3.8087) mm, which was calculated using OTOPLAN 1.5.0 software. There was a statically significant difference in linear depth of insertion between round window and cochleostomy. Although the angular depth of insertion was higher in CS group, there was no statistically significant difference with round window type of insertion. CONCLUSION: The depth of electrode insertion is one of the parameters that influences the hearing outcome. Linear depth of electrode insertion was found to be more in case of cochleostomy compared to round window approach (p = 0.075) and difference in case of angular depth of electrode insertion existed but not significant (p = 0.529).


Subject(s)
Cadaver , Cochlea , Cochlear Implantation , Cochlear Implants , Round Window, Ear , Temporal Bone , Humans , Round Window, Ear/surgery , Cochlear Implantation/methods , Temporal Bone/surgery , Temporal Bone/diagnostic imaging , Cross-Sectional Studies , Cochlea/surgery , Cochlea/diagnostic imaging , Tomography, X-Ray Computed , Electrodes, Implanted
3.
Int Ophthalmol ; 43(6): 1919-1926, 2023 Jun.
Article in English | MEDLINE | ID: mdl-36427099

ABSTRACT

PURPOSE: To assess the outcomes of transcutaneous retrobulbar Amphotericin B (TRAMB) for rhino-orbital-cerebral-mucormycosis (ROCM) post-COVID-19, as an adjuvant to standard systemic antifungal therapy. METHODS: In this prospective cohort study involving ROCM patients with clinical/radiological orbital involvement, 44 eyes with ROCM stage ≥ 3B received TRAMB for 7 consecutive days with liposomal Amphotericin-B (3.5 mg/ml) with a minimum clinical and radiological follow-up of 3 months. All patients received standard systemic antifungal therapy also as per institutional protocol. Data pertaining to demography, systemic status, clinical involvement, imaging, surgical/medical management were also recorded. Potential eyes for exenteration were excluded. Please confirm if the author names are presented accurately and in the correct sequence (given name, middle name/initial, family name). Author 12 Given name: [Mahendra Kumar ] Last name [Garg]. Also, kindly confirm the details in the metadata are correct.All author names are presented accurately. Details in the metadata are correct. Thank you. RESULTS: Forty-four eyes of 42 patients were included, out of which 30 had diabetes mellitus & 22 had received steroid/oxygen treatment during COVID-19 infection. Forty eyes showed improvement or stable disease on follow-up on radiology. Four eyes which showed progression of the disease in orbit were reaugmented with TRAMB. No patient required exenteration. Subconjunctival haemorrhage occurred in six eyes and temporary blurring of vision in four eyes after TRAMB which resolved spontaneously. CONCLUSION: TRAMB, as an adjuvant to standard systemic antifungal therapy, is associated with a significant reduction or stabilisation of orbital involvement. TRAMB should be considered as an adjuvant therapy for ROCM to reduce disease progression as well as to preserve globe or sight. It has a promising role in preventing potential orbital exenterations.


Subject(s)
COVID-19 , Eye Diseases , Mucormycosis , Orbital Diseases , Humans , Amphotericin B/therapeutic use , Antifungal Agents/therapeutic use , Mucormycosis/diagnosis , Mucormycosis/drug therapy , Prospective Studies , Orbital Diseases/diagnosis , Orbital Diseases/drug therapy
4.
Indian J Otolaryngol Head Neck Surg ; 74(3): 375-382, 2022 Sep.
Article in English | MEDLINE | ID: mdl-36213471

ABSTRACT

LTT is a life-threatening incident that is fortunately rare. The presenting symptoms might not correlate with the intensity of trauma and range from mild endolaryngeal edema to complete laryngotracheal transection. An early diagnosis and timely intervention is required for successful outcomes and minimizing complications. This retrospective audit was performed on 18 patients of LTT who presented to the emergency from January 2017 to December 2019. The history, clinical presentation, examination findings, degree and nature of trauma, diagnostic modalities, medical and surgical management, and outcomes were analyzed. A total of 13 males and 5 females were included in this audit, with a mean age of 38.7 years. The most common cause was accidental in 77.7% patients. 61.5% of patients presented with Schaefer grade 3 and higher. Out of which 46% underwent emergent neck exploration and repair. 27.7% (5/18) presented with sequelae which were managed either by T- tube stenting, endoscopic dilatation by coblation, or laryngotracheal resection (LTR) and end-to-end anastomosis (EEA). Out of 14 surgically reconstructed airways, successful decannulation was achieved in 57.1% (8) patients. High clinical suspicion, early referral with emergent intervention is paramount for successful outcomes, fewer recurrences, and reduction of hospital's and patient's financial burden as timely planning and intervention can ensure successful decannulation of around two thirds of the higher grades (grade 3-5) of laryngotracheal traumatic injuries. Early airway establishment is the most critical goal. Definitive treatment protocols are needed in this field which warrants further formulation of multicentric studies and audits.

5.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 1): 675-680, 2022 Aug.
Article in English | MEDLINE | ID: mdl-36032896

ABSTRACT

Different studies have shown that a significant number of medical graduates do not achieve the necessary preparedness for delivery of effective health care in a safe and acceptable manner. Various studies have been undertaken to explore the competencies of surgical residents in otorhinolaryngology. This study was carried out to find out the status of training in otology being provided across different institutions in India. This is a cross sectional study undertaken at All India Institute of Medical Sciences (AIIMS), Jodhpur. An online survey questionnaire enquiring about different aspects of otologic training being followed at various centres was developed and was sent online to all prospective responders. Out of the 217 responders, 88 were faculty members and 129 residents. 62% of the faculty members and 56.5% of residents mentioned that their centre has a temporal bone dissection lab. 64.7% of the faculty members and 58.2% of the residents responded that temporal bone dissection is mandatory before live surgeries. 44% residents have their thesis topic related to otology. About 79% of faculty members and residents are not happy with the the training module being followed in their centre and feel it needs improvement. There needs to be a standardized curriculum that is followed all over the country for teaching the residents during their residency. Increase in existing centers with well equipped staff and facilites is required to provide the residents with opportunities to hone and refine their surgical skills during their training period. Supplementary Information: The online version contains supplementary material available at (10.1007/s12070-021-02485-0).

6.
Int. arch. otorhinolaryngol. (Impr.) ; 26(1): 5-9, Jan.-Mar. 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1364932

ABSTRACT

Abstract Introduction Airway foreign bodies are emergencies involving multidisciplinary departments like Pediatrics, Aneasthesiology and Otorhinolaryngology. It is always a challenge to diagnose and manage patients who present late to our emergencies. Objective In the present study, we aim to analyze the various challenges faced during the management of tracheobronchial foreign bodies with delayed presentation. Methods A retrospective hospital record-based analysis of patients who presented to us with tracheobronchial foreign bodies from January 2017 to February 2020 was performed. All patients until the age of 16 years old were included in the present study. We assessed the demographics, preoperative, intraoperative and postoperative data of the patients. Results Seventeen patients were analyzed in the study. Among these, 44.4% of the patients had delayed presentation (> 1 month). The majority of the patients had an organic foreign body (Supari or betel nut). All patients underwent rigid bronchoscopy, followed by optical forceps-assisted removal of the foreign body. A total of 82% of the patients had granulations around the foreign body. Conclusion Management of delayed presentation tracheobronchial foreign body is a big challenge for Otorhinolaryngologists. The key factors for preventing complications in the definitive management of tracheobronchial foreign bodies are preoperative planning, multi-discipline teamwork, surgeon expertise and technique.

7.
Int Arch Otorhinolaryngol ; 26(1): e005-e009, 2022 Jan.
Article in English | MEDLINE | ID: mdl-35096153

ABSTRACT

Introduction Airway foreign bodies are emergencies involving multidisciplinary departments like Pediatrics, Aneasthesiology and Otorhinolaryngology. It is always a challenge to diagnose and manage patients who present late to our emergencies. Objective In the present study, we aim to analyze the various challenges faced during the management of tracheobronchial foreign bodies with delayed presentation. Methods A retrospective hospital record-based analysis of patients who presented to us with tracheobronchial foreign bodies from January 2017 to February 2020 was performed. All patients until the age of 16 years old were included in the present study. We assessed the demographics, preoperative, intraoperative and postoperative data of the patients. Results Seventeen patients were analyzed in the study. Among these, 44.4% of the patients had delayed presentation (> 1 month). The majority of the patients had an organic foreign body (Supari or betel nut). All patients underwent rigid bronchoscopy, followed by optical forceps-assisted removal of the foreign body. A total of 82% of the patients had granulations around the foreign body. Conclusion Management of delayed presentation tracheobronchial foreign body is a big challenge for Otorhinolaryngologists. The key factors for preventing complications in the definitive management of tracheobronchial foreign bodies are preoperative planning, multi-discipline teamwork, surgeon expertise and technique.

8.
Eur Arch Otorhinolaryngol ; 279(6): 3013-3019, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35022863

ABSTRACT

PURPOSE: Chronic upper airway obstruction caused by adenotonsillar hypertrophy is one of the major cause of morbidity in children. It can lead to Obstructive Sleep Apnoea Syndrome, Pulmonary Hypertension, Cor Pulmonale and right heart failure. The study aimed to evaluate and compare various parameters of cardiac function with the help of echocardiography preoperatively and postoperatively in children undergoing adenotonsillectomy. METHODOLOGY: A prospective cohort study was conducted on 23 patients at an apex care institute, under the age group of 4-12 years, who were diagnosed with adenotonsillar hypertrophy. Preoperative symptom analysis and Echocardiographic examination were done. After the assessment, all patients underwent surgery in the form of adenotonsillectomy. Follow-up symptom analysis and echocardiographic examination was done after 3 months postoperatively. RESULTS: Significant improvement in the obstructive symptoms were noted in postoperative group as expected (p = < 0.001) and also in parameters such as mPAP (p = < 0.001), TAPSE (p = < 0.001), TAV (p = 0.001), Ejection fraction (p = 0.027) and RVMPI (p = 0.044) were improved in postoperative group. 4 patients had Grade 1 Right ventricular diastolic dysfunction, which disappeared in three patients postoperatively. CONCLUSION: We have concluded that there can be subclinical cardiac dysfunctions which occurs as a result of chronic upper airway obstruction due to untreated adenotonsillar hypertrophy. Routine cardiac screening in children presenting with sleep disordered breathing associated with adenotonsillar hypertrophy may be helpful in identifying and preventing the development of cardiopulmonary complication. These changes can be reversed by performing adenotonsillectomy.


Subject(s)
Adenoids , Airway Obstruction , Hypertension, Pulmonary , Tonsillectomy , Adenoidectomy/adverse effects , Adenoids/surgery , Airway Obstruction/etiology , Child , Child, Preschool , Humans , Hypertrophy/surgery , Palatine Tonsil/surgery , Prospective Studies , Tonsillectomy/adverse effects
9.
J Mycol Med ; 32(2): 101238, 2022 May.
Article in English | MEDLINE | ID: mdl-34979299

ABSTRACT

OBJECTIVE: To evaluate the outcome of patients with ROCM (Rhino-orbito-cerebral mucormycosis) following their medical and surgical management. MATERIALS AND METHODS: It is a prognostic study based in a tertiary care center in North-Western India. Patients who developed ROCM post COVID-19 infection from 1st September 2020 to 30th June 2021 were included in this study. Surgical debridement and administration of antifungal therapy was done for the post-COVID-19 ROCM patients. Disease progression and survival was studied up to 5 months of follow-up in the second wave. RESULTS: A total of 145 ROCM patients were included. The mean age at presentation, male: female ratio was 48.2 years and 2:1 respectively. As per our proposed new staging system and treatment strategy, the majority of patients belonged to stage II (31.72%) and stage III (31.03%). On a follow-up period of 5 months, 26 (18%) patients have lost their life and rest of the patients are on strict follow-up. CONCLUSION: ROCM is an extremely aggressive fungal infection which rapidly became an epidemic following the COVID-19 pandemic. The diverse and unique presentation led us to evolve a new strategy to classify and manage these patients.


Subject(s)
COVID-19 , Eye Infections, Fungal , Mucormycosis , Orbital Diseases , Antifungal Agents/therapeutic use , COVID-19/epidemiology , Eye Infections, Fungal/drug therapy , Female , Humans , Male , Mucormycosis/drug therapy , Mucormycosis/epidemiology , Mucormycosis/surgery , Orbital Diseases/drug therapy , Pandemics , SARS-CoV-2 , Tertiary Care Centers
10.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 2): 2693-2698, 2022 Oct.
Article in English | MEDLINE | ID: mdl-32837949

ABSTRACT

Coronavirus disease 2019 (COVID-19) is a type of viral pneumonia that has paralysed the entire world both in terms of health and economy. It has been recently declared as a global pandemic. All the health care professionals must be aware of the disease entity and take precautionary measures to control its transmission from person to person, particularly in hospital settings. In this article, we propose essential steps that can be implemented at the departmental and institutional levels to do endoscopic diagnostic procedures effectively during COVID-19 outbreak and to break the transmission chain.

11.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 2): 3072-3074, 2022 Oct.
Article in English | MEDLINE | ID: mdl-34307113

ABSTRACT

Sudden surge of Post Covid-19 Rhino-orbito-mucormycosis cases has left entire ENT fraternity in the center of a war room. We present a quick administrative preparedness for this situation in a tertiary care Government Institute in India. This model may serve as a reference for other centers.

12.
Ann Otol Rhinol Laryngol ; 131(7): 730-736, 2022 Jul.
Article in English | MEDLINE | ID: mdl-34459285

ABSTRACT

OBJECTIVE: It has been shown that prolonged use of face masks results in physiological changes in the nasal cavity. The objective of this study was to examine the effect of prolonged use of face masks on nasal mucociliary clearance (NMC). METHODS: A single group pre-post study was conducted to determine the effects of prolonged use of N95 face mask (≥4 hours) on the NMC rates in health care workers. Saccharin transit time (STT) was used to measure the NMC. STT before and after using an N95 mask for at least 4 hours was measured for all participants in controlled conditions of temperature and humidity. RESULTS: Forty-eight volunteers (20 female and 28 male) completed the study after the enrollment of 57 volunteers. The mean STT before mask use was 580.27 ± 193.93 seconds (95% CI; 523.95-636.58 seconds) and after mask use was 667.47 ± 237.42 seconds (95% CI; 598.53-736.42 seconds). There was significant prolongation of the NMC after prolonged use of N95 mask on performing the paired t-test (P = .002). The mean prolongation was 87.20 ± 184.97 seconds with an actual effect size of 0.40. Ambient temperature and humidity were not significantly different at the two test instances. CONCLUSION: Use of the N95 face masks for 4 hours results in prolongation of the nasal mucociliary clearance as measured by STT. Susceptibility to any respiratory infection may be increased following doffing of the personal protective equipment, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) itself.


Subject(s)
COVID-19 , SARS-CoV-2 , COVID-19/epidemiology , COVID-19/prevention & control , Female , Humans , Male , Mucociliary Clearance , N95 Respirators , Personal Protective Equipment
13.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 3): 5082-5090, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36742837

ABSTRACT

Loss of voice is a serious concern for a laryngectomee which should be addressed prior to planning the procedure. Voice rehabilitation options must be educated before the surgery. Even though many devices have been in use, each device has got its limitations. We are searching for probable future technologies for voice rehabilitation in laryngectomees and to familiarise with the ENT fraternity. We performed a bibliographic search using title/abstract searches and Medical Subject Headings (MeSHs) where appropriate, of the Medline, CINAHL, EMBASE, Web of Science and Google scholars for publications from January 1985 to January 2020. The obtained results with scope for the development of a device for speech rehabilitation were included in the review. A total of 1036 articles were identified and screened. After careful scrutining 40 articles have been included in this study. Silent speech interface is one of the topics which is extensively being studied. It is based on various electrophysiological biosignals like non-audible murmur, electromyography, ultrasound characteristics of vocal folds and optical imaging of lips and tongue, electro articulography and electroencephalography. Electromyographic signals have been studied in laryngectomised patients. Silent speech interface may be the answer for the future of voice rehabilitation in laryngectomees. However, all these technologies are in their primitive stages and are potential in conforming into a speech device.

14.
Acta Otolaryngol ; 141(9): 885-893, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34486907

ABSTRACT

BACKGROUND: One of the debilitating complications of head and neck cancer radiotherapy is hearing loss. OBJECTIVE: To quantify the magnitude of sensory neural hearing loss (SNHL) in the head and neck cancer patients undergoing chemoradiation therapy. DESIGN AND METHODS: This is a prospective study. Eighty patients with head and neck cancers and undergoing volumetric arc therapy were taken up for the study. Regular audiological evaluation was done. The changes in audiological parameters from baseline are correlated with cochlear dose. RESULTS: Cochlea received maximum doses of up to 28.52 Gy without causing SNHL in the absence of chemotherapy. But in concurrent chemoradiotherapy, hearing loss was found at least dose of 9 Gy at frequency range of 4 KHz-8 KHz. The risk of SNHL is independent of cumulative doses of Cisplatin. In 106 ears receiving concurrent chemoradiation, 82.1% and 74.5% ears had sensorineural hearing loss at 4 KHz and 8 KHz respectively, following the completion of treatment. Otoacoustic emissions in the chemoradiation group showed a significant change at the completion of treatment. CONCLUSION AND SIGNIFICANCE: Volumetric arc therapy have facilitated sparing of cochlea (< 40 Gy). This has resulted in better clinical outcome in terms of SNHL. The inclusion of concurrent cisplatin chemotherapy is a significant risk factor for the development of SNHL at higher frequencies.


Subject(s)
Antineoplastic Agents/adverse effects , Chemoradiotherapy/adverse effects , Cisplatin/adverse effects , Cochlea/radiation effects , Head and Neck Neoplasms/therapy , Hearing Loss, Sensorineural/etiology , Adult , Antineoplastic Agents/administration & dosage , Audiometry , Cisplatin/administration & dosage , Female , Head and Neck Neoplasms/complications , Humans , Male , Middle Aged , Prospective Studies , Radiometry , Radiotherapy Dosage , Risk Factors
15.
Ann Maxillofac Surg ; 11(1): 58-63, 2021.
Article in English | MEDLINE | ID: mdl-34522655

ABSTRACT

INTRODUCTION: The expression of matrix metalloproteinase-9 (MMP-9), MMP-13, and tissue inhibitor of metalloproteinases (TIMP-1) in head and neck squamous cell carcinoma (HNSCC) could be a useful predictor of tumour differentiation, nodal metastasis, and invasiveness. We conducted this study to ascertain the correlation between the expression of these markers and differentiation of tumour cells. MATERIALS AND METHODS: A prospective observational study was conducted in a tertiary care center. Forty-three cases of proven HNSCC were recruited after obtaining informed consent. Using the surgically excised specimen, tumour differentiation and invasiveness were assessed and correlated with rates of expression of the markers. Chi-square test was done to correlate immunohistochemical (IHC) marker positivity and the degree of differentiation of the tumour, lymph node metastasis, and invasiveness. RESULTS: MMP-9, MMP-13, and TIMP-1 were expressed in 72%, 34%, and 18% of cases, respectively. p16 expression was not found in any of the cases. MMP-13 expression correlated with poorer differentiation of the tumour (p = 0.03), and relatively younger age at diagnosis (p = 0.01). However, there was no correlation with lymphovascular or perineural invasion or lymph node metastasis. DISCUSSION: In our study, MMP-13 expression correlated with poorer tumour differentiation and younger age at diagnosis, giving indirect evidence of tumour aggressiveness. IHC markers can provide additional information to prognosticate HNSCC. Identifying potential targets for newer biological therapy is essential in the Indian population as there are biological differences in cancer behavior. Increased expression of the proteolytic MMP-13 correlated with poorer differentiation of HNSCC.

16.
Int Arch Otorhinolaryngol ; 25(3): e459-e462, 2021 Jul.
Article in English | MEDLINE | ID: mdl-34377185

ABSTRACT

The number of critically-ill coronavirus disease 2019 (Covid-19) patients requiring mechanical ventilation is on the rise. Most guidelines suggest keeping the patient intubated and delay elective tracheostomy. Although the current literature does not support early tracheostomy, the number of patients undergoing it is increasing. During the pandemic, it is important that surgeons and anesthesiologists know the different aspects of tracheostomy in terms of indication, procedure, tube care and complications. A literature search was performed to identify different guidelines and available evidence on tracheostomy in Covid-19 patients. The purpose of the present article is to generate an essential scientific evidence for life-saving tracheostomy procedures.

17.
Iran J Otorhinolaryngol ; 33(115): 93-96, 2021 Mar.
Article in English | MEDLINE | ID: mdl-33912484

ABSTRACT

INTRODUCTION: The facial nerve is an important structure related to parotid gland surgery. Its identification at the time of surgery is critical. Multiple anatomical landmarks have been described to aid in its identification. The objective of this study is to assess whether the tympanomastoid suture is a better surgical landmark than the tragal pointer for identifying the facial nerve while performing parotidectomy. MATERIALS AND METHODS: Sixty patients presenting over a period of 3 years from 2016 to 2018 with a parotid swelling without pre-operative facial weakness were included in the study. The average distances between the facial nerve (FN) and the tragal pointer (TP), and the facial nerve (FN) and tympanomastoid suture (TMS) were calculated intra-operatively and compared. RESULTS: Out of the 60 patients operated, 54 underwent superficial parotidectomy and 6 underwent total conservative parotidectomy. The mean distance between the FN (main trunk) and TP was found to be 18.38 ± 6.85 mm and that between FN and TMS was found to be 2.92 ± 0.6 mm (P<0.0001). CONCLUSION: Tympanomastoid suture is a fairly constant and consistent bony landmark to locate the facial nerve during parotid surgeries as compared to the more commonly used cartilaginous tragal pointer. The results of this study can guide surgeons during parotidectomy, to correctly and promptly identify the facial nerve thereby reducing the risk of injury.

18.
J Cancer Res Clin Oncol ; 147(7): 1869-1879, 2021 Jul.
Article in English | MEDLINE | ID: mdl-33913031

ABSTRACT

PURPOSE: Methylation of 5th residue of cytosine in CpG island forms 5-methylcytosine which is stable, heritable epigenetic mark. Methylation levels are broadly governed by methyltransferases and demethylases. An aberration in the demethylation process contributes to the silencing of gene expression. Ten eleven translocation (TET) dioxygenase (1-3) the de novo demethylase is responsible for conversion of 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC), 5-formylcytosisne (5-fC) and 5-carboxycytosine (5-caC) during demethylation process. Mutations and abnormal expression of TET proteins contribute to carcinogenesis. Discovery of TET proteins has offered various pathways for the reversal of methylation levels thus, enhancing our knowledge as to how methylation effects cancer progression. METHODS: We searched "PubMed" and "Google scholar" databases and selected studies with the following keywords "TET enzyme", "cancer", "5-hmC", and "DNA demethylation". In this review, we have discussed combinatorial use of vitamin C in inhibiting tumour growth by enhancing the catalytic activity of TET enzymes and consequently, increasing the 5-hmC levels. 5-Hydroxymethylcytosine holds promise as a prognostic biomarker in solid cancers. The contribution of induction and suppression of TET enzymes and 5-hmC carcinogenesis are discussed in haematological and solid cancers. RESULTS: We found that TET enzymes play central role in maintaining the methylation balance. Any anomaly in their expression may dip the balance towards cancer progression. Low levels of TET enzymes and 5-hmC correlate with tumour invasion, progression and metastasis. Also, use of vitamin C enhances TET activity. CONCLUSION: TET enzymes play vital role in shaping the methylation landscape in body. 5-hmC can be used as prognostic marker in solid cancers.


Subject(s)
DNA Methylation , Epigenesis, Genetic , Gene Expression Regulation, Neoplastic , Mixed Function Oxygenases/genetics , Neoplasms/pathology , Proto-Oncogene Proteins/genetics , Humans , Neoplasms/genetics
19.
Curr Med Mycol ; 7(3): 22-28, 2021 Sep.
Article in English | MEDLINE | ID: mdl-35528622

ABSTRACT

Background and Purpose: Rapid surge of invasive mucormycosis has surprised the Indian healthcare system amidst the coronavirus disease-19 (COVID-19) pandemic. Hence, there is an urgent need to find the risk factors for the sudden rise in cases of invasive mucormycosis among COVID-19 patients. This study aimed to find crucial risk factors for the sudden surge of invasive mucormycosis in India. Materials and Methods: This case-control study included 77 cases of COVID-19 associated mucormycosis (CAM) who matched the controls (45 controls) in terms of age , gender, and COVID-19 disease severity. The control group included subjects that matched controls without mucormycosis confirmed by reverse transcription-polymerase chain reaction at our tertiary care center during April-May 2021. Probable predisposing factors, such as duration of diabetes mellitus (DM), history of recent hospitalization, duration of hospital stay, mode of the received oxygen supplementation, and use of steroids, zinc, vitamin c, and any other specific drugs were collected and compared between the two groups. Moreover, the laboratory parameters, like glycated hemoglobin (HbA1c), highly sensitive C-reactive protein (hs-CRP), and erythrocyte sedimentation rate (ESR) were analyzed to find out the significant association with CAM. Results: DM (Odds ratio=7.7, 95% CI 3.30-18.12; P=<0.0001) and high glycated hemoglobin level (HbA1c>7.5 gm %) (odds ratio=6.2, 95% CI 1.4-26.7; P=0.014) were significant risk factors for the development of invasive mucormycosis among the COVID-19 cases. A higher number of mild COVID-19 cases developed CAM, compared to the moderate to severe cases (59.7% vs 40.3%). Use of systemic corticosteroids (odd ratio=5 with 95% CI 1.5-16.9; P=0.007) was found to be a risk factor for invasive mucormycosis only in mild COVID-19 cases. Use of oxygen, zinc, and vitamin C supplementation, and proprietary medicine did not lead to a significant risk of invasive mucormycosis in cases, compared to controls. Cases with invasive mucormycosis had a higher level of inflammatory markers (hs-CRP and ESR, P=<0.001 and 0.002, respectively), compared to the controls. Conclusion: Uncontrolled and new-onset DM and the use of systemic corticosteroids in mild cases were significantly associated with a higher risk of invasive mucormycosis in COVID-19 cases. There should be a strong recommendation against the use of systemic corticosteroids in mild COVID-19 cases.

20.
BMJ Case Rep ; 13(1)2020 Jan 05.
Article in English | MEDLINE | ID: mdl-31907216

ABSTRACT

Congenital nasal anomalies are rare and occur in 1/20 000-1/40 000 newborns. An 8-year-old boy presented with developmental aplasia of bilateral nasal lower lateral cartilages, with excessive wrinkled and loose skin on the dorsum of the nose and with difficulty breathing through the nose. This is probably the first such case to be reported in the literature. The defect was reconstructed using conchal and septal cartilage grafting through an external rhinoplasty approach. At the end of the 12-month follow-up period, the patient was found to be satisfied with the functional and aesthetic results of the operation. Bilateral congenital aplasia of nasal lower lateral cartilages is extremely rare. Paediatric rhinoplasty is imperative in such cases.


Subject(s)
Nasal Cartilages/abnormalities , Nasal Cartilages/surgery , Nose/abnormalities , Nose/surgery , Rhinoplasty , Child , Humans , Male , Rare Diseases
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