1.Evaluation of Eustachian Tube Function and Acid Reflux With Site of Obstruction in Obstructive Sleep Apnea
Yuvanesh KABILAN ; Hitesh VERMA ; Ramaneeshwaran MURUGESAN ; Alok THAKAR ; Rakesh KUMAR ; Kapil SIKKA ; Prem SAGAR ; Ashu Seith BHALLA ; Karan MADAN ; Nasreen AKHTAR ; Archana SINGH
Journal of Sleep Medicine 2025;22(1):17-25
Obstructive sleep apnea (OSA) is a multi-level airway disease, and the specific site of obstruction may influence associated conditions such as eustachian tube dysfunction (ETD) and gastroesophageal reflux disease (GERD). This study aimed to explore the relationship between OSA, ETD, acid reflux, and the anatomical site of obstruction. Methods: Participants were assessed using validated questionnaires for OSA, ETD, and reflux symptoms. The site of upper airway collapse was determined objectively using apneagraphy or sleep MRI. Acid reflux symptoms were evaluated using a standardized reflux symptom questionnaire, and 24-hour pH monitoring was done when indicated. ETD was assessed both subjectively and objectively through the Toynbee maneuver. Results: Sixty-three individuals completed the evaluation. The mean age was 40.4 years, and the mean BMI was 28.1 kg/m2. Retroglossal obstruction was observed in 76.1% (48/63), while 23.9% (15/63) had retropalatal obstruction. ETD was diagnosed in 53% of participants, and GERD in 38% by objective testing. A statistically significant association was found between retroglossal collapse and complete ETD (p=0.02). However, no significant link was noted between the obstruction site and laryngopharyngeal reflux or partial ETD. Additionally, salivary pepsin levels showed no correlation with reflux (p=0.412). Conclusions: OSA is frequently accompanied by ETD and GERD. Notably, retroglossal obstruction appears to be significantly associated with complete ETD, suggesting a potential site-specific impact. These findings underscore the importance of anatomical localization in understanding OSA-related comorbidities and warrant further investigation in larger multicenter studies.
2.Evaluation of Eustachian Tube Function and Acid Reflux With Site of Obstruction in Obstructive Sleep Apnea
Yuvanesh KABILAN ; Hitesh VERMA ; Ramaneeshwaran MURUGESAN ; Alok THAKAR ; Rakesh KUMAR ; Kapil SIKKA ; Prem SAGAR ; Ashu Seith BHALLA ; Karan MADAN ; Nasreen AKHTAR ; Archana SINGH
Journal of Sleep Medicine 2025;22(1):17-25
Obstructive sleep apnea (OSA) is a multi-level airway disease, and the specific site of obstruction may influence associated conditions such as eustachian tube dysfunction (ETD) and gastroesophageal reflux disease (GERD). This study aimed to explore the relationship between OSA, ETD, acid reflux, and the anatomical site of obstruction. Methods: Participants were assessed using validated questionnaires for OSA, ETD, and reflux symptoms. The site of upper airway collapse was determined objectively using apneagraphy or sleep MRI. Acid reflux symptoms were evaluated using a standardized reflux symptom questionnaire, and 24-hour pH monitoring was done when indicated. ETD was assessed both subjectively and objectively through the Toynbee maneuver. Results: Sixty-three individuals completed the evaluation. The mean age was 40.4 years, and the mean BMI was 28.1 kg/m2. Retroglossal obstruction was observed in 76.1% (48/63), while 23.9% (15/63) had retropalatal obstruction. ETD was diagnosed in 53% of participants, and GERD in 38% by objective testing. A statistically significant association was found between retroglossal collapse and complete ETD (p=0.02). However, no significant link was noted between the obstruction site and laryngopharyngeal reflux or partial ETD. Additionally, salivary pepsin levels showed no correlation with reflux (p=0.412). Conclusions: OSA is frequently accompanied by ETD and GERD. Notably, retroglossal obstruction appears to be significantly associated with complete ETD, suggesting a potential site-specific impact. These findings underscore the importance of anatomical localization in understanding OSA-related comorbidities and warrant further investigation in larger multicenter studies.
3.Evaluation of Eustachian Tube Function and Acid Reflux With Site of Obstruction in Obstructive Sleep Apnea
Yuvanesh KABILAN ; Hitesh VERMA ; Ramaneeshwaran MURUGESAN ; Alok THAKAR ; Rakesh KUMAR ; Kapil SIKKA ; Prem SAGAR ; Ashu Seith BHALLA ; Karan MADAN ; Nasreen AKHTAR ; Archana SINGH
Journal of Sleep Medicine 2025;22(1):17-25
Obstructive sleep apnea (OSA) is a multi-level airway disease, and the specific site of obstruction may influence associated conditions such as eustachian tube dysfunction (ETD) and gastroesophageal reflux disease (GERD). This study aimed to explore the relationship between OSA, ETD, acid reflux, and the anatomical site of obstruction. Methods: Participants were assessed using validated questionnaires for OSA, ETD, and reflux symptoms. The site of upper airway collapse was determined objectively using apneagraphy or sleep MRI. Acid reflux symptoms were evaluated using a standardized reflux symptom questionnaire, and 24-hour pH monitoring was done when indicated. ETD was assessed both subjectively and objectively through the Toynbee maneuver. Results: Sixty-three individuals completed the evaluation. The mean age was 40.4 years, and the mean BMI was 28.1 kg/m2. Retroglossal obstruction was observed in 76.1% (48/63), while 23.9% (15/63) had retropalatal obstruction. ETD was diagnosed in 53% of participants, and GERD in 38% by objective testing. A statistically significant association was found between retroglossal collapse and complete ETD (p=0.02). However, no significant link was noted between the obstruction site and laryngopharyngeal reflux or partial ETD. Additionally, salivary pepsin levels showed no correlation with reflux (p=0.412). Conclusions: OSA is frequently accompanied by ETD and GERD. Notably, retroglossal obstruction appears to be significantly associated with complete ETD, suggesting a potential site-specific impact. These findings underscore the importance of anatomical localization in understanding OSA-related comorbidities and warrant further investigation in larger multicenter studies.
4.Immunohistochemical Analysis of the Expression of Cytokeratins in Acquired Cholesteatoma and Its Clinico-Radiological Correlation
Anupam KANODIA ; Aanchal KAKKAR ; Yash VERMA ; Diya ROY ; Hitesh VERMA ; Chirom Amit SINGH ; Rabia MONGA ; Deepali JAIN ; Alok THAKAR ; Kapil SIKKA
Journal of Audiology & Otology 2023;27(2):97-103
Background and Objectives:
Cholesteatomatous chronic otitis media acquires epithelial proliferation and differentiation characteristics, which render it able to erode the underlying bone and cause complications. We attempt to characterize the cholesteatoma epithelium by observing the expression of cytokeratins (such as 34ße12, CK17, and CK13) and Ki67 among patients with cholesteatoma with different aggressiveness as compared to disease-free controls.
Subjects and Methods:
In this prospective study (2017-2021), we enrolled all consenting consecutive patients with cholesteatomatous chronic otitis media. They were staged in accordance with the staging guidelines of the European Academy of Otology and Neurotology and the Japanese Otological Society. Bony external auditory canal (EAC) skin specimens of the patients undergoing tympanoplasty were chosen as controls. We did an immunohistochemical analysis of the cholesteatoma specimens and normal bony EAC controls by observing the expression of 34ße12, CK17, CK13, and Ki67 across the layers of the epithelium. Fisher’s exact test and chi-square test were used to evaluate any statistical significance between the cases and the controls, and the subgroups were made based on the clinical stage.
Results:
An increased expression of CK17 (p<0.001), CK13 (p<0.03), and Ki67 (p<0.001) was observed in cholesteatoma specimens when compared to normal bony EAC controls. Also, there was a loss of expression of 34ße12 in a subset of cholesteatoma specimens, all of which showed full-thickness expression of CK13. There was no difference in the expression of cytokeratin among specimens from patients belonging to different subgroups based on clinical stage, age, sex, duration of ear symptoms, or type of hearing loss (conductive vs. sensorineural).
Conclusions
The majority of cholesteatoma specimens significantly overexpressed CK17, CK13, and Ki67 when compared to normal bony EAC skin controls, while a subset showed loss of expression of 34ße12, which provides some insight into its pathogenesis.
5.Clinical and Social Outcomes of Cochlear Implantation in Older Prelinguals
Pragya TYAGI ; Divya CHAUHAN ; Anup SINGH ; Mayank BHUTADA ; Kapil SIKKA ; Tanvi CHAUDHARY ; Sonam SHARMA ; Shivani AGARWAL ; Hitesh VERMA ; Prem SAGAR ; Rakesh KUMAR ; Alok THAKAR
Journal of Audiology & Otology 2023;27(2):63-70
Background and Objectives:
Cochlear implantation in late implanted prelinguals necessitates a complex decision-making process for clinicians and patients due to the uncertainty of achieving adequate benefit in auditory and speech perception. This study longitudinally evaluated clinical and social outcomes of prelingually deaf children with implantation in their late childhood.
Subjects and Methods:
A total of 113 (49 females and 64 males) participants, with an age range of 5-15 years, were assessed for the pre-implant parameters such as hearing loss etiology, aided responses, anatomical aspects, and psychological evaluation. The Category of Auditory Performance, Speech Awareness Threshold, Speech Reception Threshold, and Speech Discrimination Score were administered to assess the patient’s auditory skills. Further, the Speech Intelligibility Rating scale was administered to evaluate the patient’s speech intelligibility at 3, 6, 9, 12, 18, and 24 months post-surgery. Subjectively perceived benefits were evaluated using the satisfaction rating scale and a questionnaire.
Results:
The statistical results showed a significant impact of cochlear implantation in all domains. Positive impact and improvement post-implantation were noted in all the spheres, including auditory, linguistic, social, and educational.
Conclusions
The study highlighted that the outcomes of a cochlear implant at a later age might not parallel with the implantation at a younger age. However, this still provides measurable benefits even after a longer period of auditory deprivation.
6.Is Regular Probiotic Practice Safe for Management of Sepsis?
Rishabh KUMAR ; Alok Shiomurti TRIPATHI ; Nidhi SHARMA ; Gaaminepreet SINGH ; Lucy MOHAPATRA
Chinese journal of integrative medicine 2022;28(2):185-192
For decades, the gut has been thought to play an important role in sepsis pathogenesis. Sepsis is a serious life-threatening, chronic condition of an infection caused by dysregulated host immune response in most of the intensive care unit patients. Probiotics have dual roles in polymicrobial sepsis i.e. probiotics may induce sepsis in many cases and may prevent its prognosis in many cases. Experimental evidence from both pre-clinical and clinical studies have demonstrated that probiotic therapy ameliorates various inflammatory mediators such as tumor necrosis factor, interleukin-10 (IL-10), IL-6, etc., in septicemia. In addition, probiotic use was also found to reduce the severity of pathological conditions associated with irritable bowel disorder and prevent development of endocarditis in septicemia. On contrary, probiotic therapy in neonatal and athymic adult mice fail to provide any beneficial effects on mortality and sepsis-induced inflammation. Importantly, in few clinical trials probiotic use was found to aggravate sepsis by promoting inflammatory cascade rather than suppressing it. This review discusses various studies regarding the beneficial or harmful effects associated with probiotic therapy in sepsis.
Animals
;
Humans
;
Inflammation
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Mice
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Probiotics/therapeutic use*
;
Sepsis/therapy*
;
Tumor Necrosis Factor-alpha
7.Objective Comparison of Benefits Derived From Contralateral Routing of Signal Hearing Aid and Bone Conduction Device in Noisy Surroundings in Patients With Single-Sided Deafness
Kapil SIKKA ; Rijendra YOGAL ; Alok THAKAR ; Rakesh KUMAR ; Tanvi CHAUDHARY ; Mao BHARTIYA ; Hitesh VERMA ; Sonam SHARMA ; Chirom Amit SINGH
Journal of Audiology & Otology 2022;26(4):202-207
Background and Objectives:
Single-sided deafness (SSD) leads to non-participation of the diseased ear in generating adequate auditory input, which results in poor speech discrimination in noisy surroundings. The present study objectively compared the audiological benefits rendered by contralateral routing of signal (CROS) hearing aid and bone conduction device (BCD) in patients with SSD >70 dB HL using the modified hearing in noise test (HINT).
Materials and Methods:
Patients with SSD >70 dB HL in poor and clinically normal hearing in the better ear were enrolled. Patients aged <18 or >70 years, with a history of neurological insult or ear infection in the last 3 months, mental retardation, psychiatric or developmental disorders, and diabetes were excluded. Modified HINT was performed with the affected ear unaided, aided with CROS hearing aid, and with BCD, generating three groups. Noise signal was presented at a fixed intensity of 65 dB at the neutral position in the center and speech signal was presented to either ear sequentially. The test was repeated with the speech signal fixed at the neutral position and the noise signal presented to either ear.
Results:
BCD led to a better signal-to-noise ratio (SNR) than CROS hearing aid in all situations except when noise was centralized and speech was presented to the affected ear.
Conclusions
A benefit was observed when auditory rehabilitation was used for the affected ear as demonstrated by better SNR scores. The results showed that BCD performed better than CROS hearing aid.
8. Efficacy and safety of ivermectin for COVID-19: A systematic review and meta-analysis
Alok SINGH ; Pranav SHETH ; Suryaprakash DHANERIA ; Dhyuti GUPTA
Asian Pacific Journal of Tropical Medicine 2021;14(10):440-450
Objective: To critically evaluate the trials that have assessed the efficacy and safety of ivermectin COVID-19 and to validate the rationality of using this drug in the management of COVID-19 either as a prophylactic or therapeutic agent. Methods: The authors conducted a systematic search through various databases, i.e., Cochrane library, PubMed, clincialtrials.gov, and preprint servers, for publications from 2020 to May 2021. The keywords used for the search were: "COVID-19 and ivermectin"(with filter set for "trials"). All the trials assessing efficacy in prophylaxis and treatment of COVID-19 were included for analysis. The primary outcome was the proportion of patients showing disease progression. Secondary outcomes were mean duration of hospitalization and resolution of symptoms, the proportion of patients testing positive on day 5-7, the mortality rate in severe cases, incidence of serious adverse events, and contacts of COVID-19 positive patients who turned RT-PCR positive after prophylaxis treatment. Results: A total of 17 clinical trials were included for the evaluation. Ivermectin proved to be a beneficial add-on therapy, as it reduced the risk of disease progression (OR 0.47, 95% CI 0.30-0.74, P =0.001), led to early resolution of symptoms (MD -1.16, 95% CI-1.52 - 0.81, P <0.001), and had less duration of hospitalization (MD -2.21, 95% CI -3.23 - 1.19, P <0.001). In addition, ivermectin was better in providing effective prophylaxis (OR 0.13, 95% CI 0.05-0.30, P <0.001). The incidence of serious adverse events was low. Conclusions: As an adjunct to standard care, ivermectin has shown its efficacy and safety in treating and prophylaxis in COVID-19 disease. These results should be interpreted cautiously as these trials had significant shortcomings.
9.Multiple fibro-osseous lesions of the jaws: A report of a rare case with a literature review
Ramanpal Singh MAKKAD ; Giridhar S. NAIDU ; Ravleen NAGI ; Alok SAGTANI ; Santosh PATIL ; Swatantra SHRIVASTAVA
Imaging Science in Dentistry 2021;51(4):461-466
Fibro-osseous lesions are a poorly defined category of conditions affecting the jaws and craniofacial bones, and include developmental lesions, reactive or dysplastic lesions, and neoplasms. Fibrous dysplasia and ossifying fibroma are the 2 main types of fibro-osseous lesions affecting the jaw, and ossifying fibroma is a true benign neoplasm of the bone-forming tissues with several well-recognized variants ranging from innocuous to extensively aggressive lesions. However, multiple simultaneous fibro-osseous lesions of the jaw bones involving all quadrants are exceedingly rare. One such case diagnosed by conventional radiography and computed tomography is discussed here.
10.Vascular Injuries Due to Penetrating Missile Trauma in Anti-Terrorism Ops
Rishi DHILLAN ; Alok BHALLA ; Sushil Kumar JHA ; Hakam SINGH ; Aman ARORA
Journal of the Korean Society of Traumatology 2019;32(2):93-100
PURPOSE:
Penetrating vascular trauma though less common poses a challenge to all Surgeons. This study was designed to analyse the profile, management modalities of vascular trauma and the outcomes thereof at a Trauma Care Centre in a Tertiary care setting in hostile environment in India.
METHODS:
A prospective review of all patients with arterial and venous injuries being transferred to the Trauma Center at out Tertiary Care Center between June 2015 and May 2018 was done. Demographics, admission data, treatment, and complications were reviewed.
RESULTS:
There were a total of 46 patients with 65 vascular injuries, 39 arterial injuries and 26 venous injuries. The age range was 21 to 47 years. Nineteen patients had both arterial and venous injuries. A total of 42 cases presented within 12 hours of injury and complete arterial transections were found in 33 cases (80.49%). There were three mortalities (6.52%) and three amputations (8.33%). The overall limb salvage rate was 91.67% with popliteal artery being the commonest injured artery. Poor prognosticators for limb salvage were increasing time to present to the trauma centre, hypovolemic shock, multi-organ trauma and associated venous injuries.
CONCLUSIONS
Penetrating missile trauma leading to vascular injuries has not been widely reported. Attempting limb salvage even in cases with delayed presentation should be weighed with the threat to life before revascularisation and should preferably be done at a centre with vascular expertise. A team approach with vascular, orthopaedic, general surgeons, and critical care anaesthesiologists all aboard improve the outcomes manifold. Use of tourniquets and early fasciotomies have been emphasized as is the use of native veins as the bypass conduit. This is probably the largest study on penetrating Vascular trauma in anti-terrorism ops from the Indian subcontinent. It highlights the significance of prompt recognition and availability of vascular expertise in optimally managing cases of vascular trauma.

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