Displaying publications 1 - 20 of 153 in total

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  1. Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC
    Aad G, Abbott B, Abeling K, Abicht NJ, Abidi SH, Aboulhorma A, et al.
    Phys Rev Lett, 2024 Jan 12;132(2):021803.
    PMID: 38277607 DOI: 10.1103/PhysRevLett.132.021803
    The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140  fb^{-1} for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is 2.2±0.7 times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
  2. Electrochemical assisted enhanced nanozymatic activity of functionalized borophene for H2O2 and tetracycline detection
    Ahmed SR, Sherazee M, Das P, Shalauddin M, Akhter S, Basirun WJ, et al.
    Biosens Bioelectron, 2024 Feb 15;246:115857.
    PMID: 38029708 DOI: 10.1016/j.bios.2023.115857
    This study unveils the electrochemically-enhanced nanozymatic activity exhibited by borophene during the reaction of 3,3',5,5'-tetramethylbenzidine (TMB) and H2O2. Herein, the surface of the pristine borophene was first modified with the addition of thiocyanate groups to improve hydroxyl radical (•OH) scavenging activity. Then, the oxidation reaction of TMB was accelerated under applied electrochemical potential. Both factors significantly improved the detection limit and drastically decreased the detection time. DPPH testing revealed that the radical scavenging nature of borophene was more than 70%, boosting its catalytic activity. In the presence of H2O2, borophene catalyzed the oxidation of TMB and produced a blue-colored solution that was linearly correlated with the concentration of H2O2 and allowed for the detection of H2O2 up to 38 nM. The present finding was further extended to nanozymatic detection of tetracyclines (TCs) using a target-specific aptamer, and the results were colorimetrically quantifiable up to 1 μM with a LOD value of 150 nM. Moreover, transferring the principles of the discussed detection method to form a portable and disposable paper-based system enabled the quantification of TCs up to 0.2 μM. All the sensing experiments in this study indicate that the nanozymatic activity of borophene has significantly improved under electrochemical potential compared to conventional nanozyme-based colorimetric detection. Hence, the present discovery of electrochemically-enhanced nanozymatic activity would be promising for various sensitive and time-dependent colorimetric sensor development initiatives in the future.
  3. Amnesic effects of electroshock and anoxia on conditioned taste aversion learning in rats
    Banerjee U, Das P
    Behav Processes, 1977 Jun;2(2):175-86.
    PMID: 24896436 DOI: 10.1016/0376-6357(77)90019-5
    Albino Wistar rats of both sexes were given a conditioned taste aversion training (CTA). Saccharin was used as the conditional stimulus (CS) and apomorphine-induced illness as the unconditional stimulus (US) on day 4. Amnestic treatment with electroconvulsive shock (ECS) or nitrogen anoxia were given to the rats at various points within the 180-min long CS-US interval as well as after the US. They were reexposed to the CS on days 5 and 6 in order to evaluate CTA and its extinction respectively. Apomorphine injection alone produced significant CTA as long as the CS-US interval was less than 120 min but not beyond it. Saline injections, with or without amnestic treatments, produced only an adaptation to and preference for saccharin. ECS could prevent CTA when delivered within 85 min before or 110 min after the US. Anoxia was effective at a much shorter range of time than ECS. The results are discussed in the perspectives of neophobia, saccharin aversion, amnestic agents and the character as well as gradients of amnesia produced.
  4. Fulltext MUSiC: a model-unspecific search for new physics in proton-proton collisions at s = 13 TeV
    CMS Collaboration, Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, et al.
    Eur Phys J C Part Fields, 2021;81(7):629.
    PMID: 34727144 DOI: 10.1140/epjc/s10052-021-09236-z
    Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV , corresponding to an integrated luminosity of 35.9 fb - 1 , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.
  5. Fulltext Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton-proton collisions at s = 13 TeV
    CMS Collaboration, Sirunyan AM, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, et al.
    Eur Phys J C Part Fields, 2021;81(6):488.
    PMID: 34727143 DOI: 10.1140/epjc/s10052-021-09200-x
    Production cross sections of the Higgs boson are measured in the H → Z Z → 4 ℓ ( ℓ = e , μ ) decay channel. A data sample of proton-proton collisions at a center-of-mass energy of 13 TeV , collected by the CMS detector at the LHC and corresponding to an integrated luminosity of 137 fb - 1 is used. The signal strength modifier μ , defined as the ratio of the Higgs boson production rate in the 4 ℓ channel to the standard model (SM) expectation, is measured to be μ = 0.94 ± 0.07 (stat) - 0.08 + 0.09 (syst) at a fixed value of m H = 125.38 GeV . The signal strength modifiers for the individual Higgs boson production modes are also reported. The inclusive fiducial cross section for the H → 4 ℓ process is measured to be 2 . 84 - 0.22 + 0.23 (stat) - 0.21 + 0.26 (syst) fb , which is compatible with the SM prediction of 2.84 ± 0.15 fb for the same fiducial region. Differential cross sections as a function of the transverse momentum and rapidity of the Higgs boson, the number of associated jets, and the transverse momentum of the leading associated jet are measured. A new set of cross section measurements in mutually exclusive categories targeted to identify production mechanisms and kinematical features of the events is presented. The results are in agreement with the SM predictions.
  6. Fulltext Search for direct pair production of supersymmetric partners to the τ lepton in proton-proton collisions at s = 13 TeV
    CMS Collaboration, Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, et al.
    Eur Phys J C Part Fields, 2020;80(3):189.
    PMID: 32226948 DOI: 10.1140/epjc/s10052-020-7739-7
    A search is presented for τ slepton pairs produced in proton-proton collisions at a center-of-mass energy of 13 TeV . The search is carried out in events containing two τ leptons in the final state, on the assumption that each τ slepton decays primarily to a τ lepton and a neutralino. Events are considered in which each τ lepton decays to one or more hadrons and a neutrino, or in which one of the τ leptons decays instead to an electron or a muon and two neutrinos. The data, collected with the CMS detector in 2016 and 2017, correspond to an integrated luminosity of 77.2 fb - 1 . The observed data are consistent with the standard model background expectation. The results are used to set 95% confidence level upper limits on the cross section for τ slepton pair production in various models for τ slepton masses between 90 and 200 GeV and neutralino masses of 1, 10, and 20 GeV . In the case of purely left-handed τ slepton production and decay to a τ lepton and a neutralino with a mass of 1 GeV , the strongest limit is obtained for a τ slepton mass of 125 GeV at a factor of 1.14 larger than the theoretical cross section.
  7. Depression and Quality of Life in Patients with Neurological Disorder in a Malaysian Hospital
    Das P, Naing NN, Wan-Arfah N, Naing Noor Jan KO, Kueh YC, Rasalingam K
    East Asian Arch Psychiatry, 2019 Jun;29(2):66-70.
    PMID: 31237249
    OBJECTIVE: To investigate association between major depressive disorder (MDD) and quality of life in patients with neurological disorder.

    METHODS: This cross-sectional study was carried out at a Malaysian hospital between April 2016 and December 2016 using convenience sampling. Patients aged ≥18 years with intracranial tumour or other brain disorders were invited to participate. Quality of life was assessed using the European Organisation for Research and Treatment of Cancer Quality of Life questionnaire version 3.0; diagnosis of MDD was made using Mini International Neuropsychiatric Interview.

    RESULTS: Of 122 patients approached, 100 (66 women and 34 men) were included (response rate, 93.5%), with a mean age of 45.3 years. The prevalence of MDD in patients with neurological disorder was 30%. Compared with non-depressed patients, patients with MDD had poorer global health status / quality of life (p = 0.003), and reduced physical (p = 0.003), role (p = 0.021), emotional (p < 0.001), cognitive (p = 0.004), and social (p = 0.007) functioning, as well as more symptoms of fatigue (p = 0.004), pain (p < 0.001), dyspnoea (p = 0.033), insomnia (p < 0.001), appetite loss (p = 0.002), constipation (p = 0.034), diarrhoea (p = 0.021), and financial difficulties (p = 0.039).

    CONCLUSION: Patients with MDD had reduced quality of life. Fatigue, pain, dyspnoea, insomnia, appetite loss, constipation, diarrhoea, and financial difficulties were prevalent among patients with MDD.

  8. Fulltext Prevalence and Factors Associated With Caesarean Delivery in Nepal: Evidence From a Nationally Representative Sample
    Das P, Samad N, Sapkota A, Al-Banna H, A Rahman NA, Ahmad R, et al.
    Cureus, 2021 Dec;13(12):e20326.
    PMID: 35028222 DOI: 10.7759/cureus.20326
    Background Caesarian sections (CS) are life-saving management for a pregnant mother and fetus subject to obstetric complications. The World Health Organization (WHO) expected CS rates not to exceed 10 to 15 per 100 live births in any country. This study aimed to assess the prevalence of CS and its associated factors from the 2016 Nepal Demographic and Health Survey (NDHS), building on previous studies mentioned in detail in the latter part of the paper. Methods This study analyzed the secondary data from the 2016 Nepal Demographic and Health Survey (NDHS), conducted from June 19, 2016, to January 31, 2017. The survey is undertaken every five years; consequently, the data capture the information in the previous five years from the data collection period. We used the 2016 NDHS, which is implemented by the new Enumeration Area (EA) under the support of the Ministry of Health (MOH) and funded by the U.S. Agency for International Development (USAID). In the rural areas, the sample is stratified and selected in two stages. In the first stage, wards are selected as the primary sampling units (PSU), with households subsequently chosen from the PSUs. In the urban areas, the sample is nominated in three stages. In the first stage, wards are selected as PSUs; in the second stage, one EA is chosen from each PSU, and finally, households are selected from the EAs. Then data were collected from the women in the reproductive age group within the selected households. Results The prevalence of CS in Nepal conforms to the WHO standard with 7.8, 7.5, and 8.1 per 100 deliveries, or 9.8, 8.9, and 9.1 per women's last births in the previous one, three, and five years, respectively. Older mothers of 30 years old or more, having high incomes, being overweight and obese, using the internet, ante-natal care (ANC) visits of more than four times, ANC by doctors, twin delivery, and having babies of 4 kg or more, had higher odds for a CS while having two or more children seemed to be protective towards CS. Conclusion These findings can be used to update health policies surrounding CS delivery to limit unnecessary CS and ensure better health as CS is not without complications.
  9. Fulltext Association of tumor angiogenic cells (cd133+/vegfa+) and circulating cancer stem cells (cd133+/vegfr2-) in astrocytic glioma patients
    Das, P., Naing, N.N., Wan-Arfah, N., Noorjan, K., Kueh, Y.C., Rasalingam, K.
    JUMMEC, 2019;22(2):31-38.
    MyJurnal
    Background: Astrocytic gliomas are the most common primary brain tumors that developed from glial origin.
    The angiogenic cell population from brain tumor enhances the recruitment of circulating cancer stem cells
    homing towards tumor site.

    Objectives: This study aimed to investigate the tumor angiogenic cell population that stained with CD133+
    and VEGFA+ markers and its association with circulating cancer stem cell (CD133+/VEGFR2-) population in the
    peripheral blood mononuclear cells (PBMCs) of astrocytic glioma patients.

    Methods: A total of 22 astrocytic glioma patients from Hospital Universiti Sains Malaysia who consented to
    the study were included. Tumors (n=22) were sliced and stained with CD133+ and VEGFA+ angiogenic markers
    and counter stained with DAPI. The circulating cancer stem cells (CD133+/VEGFR2-) in PBMCs (n=22) were
    quantified using FACS based on the expression of CD133 and VEGFR2 markers. The paired t-test and Pearson
    correlation were used for the data analysis.

    Results: The percentage of angiogenic cell population was significantly higher in brain tumor compared to
    adjacent normal brain tissue (1.25 ± 0.96% vs. 0.74 ± 0.68%; paired t-test=2.855; df=21, p = 0.009). Positive
    correlation was found between the angiogenic cells of brain tumor tissue and adjacent normal brain tissue
    (Pearson correlation, r = 0.53, p = 0.011). Significant positive correlation was found between angiogenic cells
    in glioma tumor and cancer stem cells in peripheral circulating systems of astrocytic glioma patients (Pearson
    correlation, r = 0.42, p = 0.049).

    Conclusion: Angiogenic cells in the brain tumor resident promote the recruitment of circulating cancer stem cells
    homing to the tumor site and induce the proliferation and growth of the tumor in astrocytic glioma patients.
  10. Observation of the Rare Decay of the η Meson to Four Muons
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, et al.
    Phys Rev Lett, 2023 Sep 01;131(9):091903.
    PMID: 37721839 DOI: 10.1103/PhysRevLett.131.091903
    A search for the rare η→μ^{+}μ^{-}μ^{+}μ^{-} double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101  fb^{-1}. A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the η→μ^{+}μ^{-} decay as normalization, the branching fraction B(η→μ^{+}μ^{-}μ^{+}μ^{-})=[5.0±0.8(stat)±0.7(syst)±0.7(B_{2μ})]×10^{-9} is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions.
  11. Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at sqrt[s]=13  TeV
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, et al.
    Phys Rev Lett, 2024 Jan 26;132(4):041802.
    PMID: 38335361 DOI: 10.1103/PhysRevLett.132.041802
    A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138  fb^{-1} of proton-proton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016-2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ(pp→A^{'}→χ_{1}χ_{2}) and the decay branching fraction B(χ_{2}→χ_{1}μ^{+}μ^{-}), where A^{'} is a dark photon and χ_{1} and χ_{2} are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.
  12. Search for Scalar Leptoquarks Produced via τ-Lepton-Quark Scattering in pp Collisions at sqrt[s]=13  TeV
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, et al.
    Phys Rev Lett, 2024 Feb 09;132(6):061801.
    PMID: 38394587 DOI: 10.1103/PhysRevLett.132.061801
    The first search for scalar leptoquarks produced in τ-lepton-quark collisions is presented. It is based on a set of proton-proton collision data recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138  fb^{-1}. The reconstructed final state consists of a jet, significant missing transverse momentum, and a τ lepton reconstructed through its hadronic or leptonic decays. Limits are set on the product of the leptoquark production cross section and branching fraction and interpreted as exclusions in the plane of the leptoquark mass and the leptoquark-τ-quark coupling strength.
  13. New Structures in the J/ψJ/ψ Mass Spectrum in Proton-Proton Collisions at sqrt[s]=13  TeV
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, et al.
    Phys Rev Lett, 2024 Mar 15;132(11):111901.
    PMID: 38563916 DOI: 10.1103/PhysRevLett.132.111901
    A search is reported for near-threshold structures in the J/ψJ/ψ invariant mass spectrum produced in proton-proton collisions at sqrt[s]=13  TeV from data collected by the CMS experiment, corresponding to an integrated luminosity of 135  fb^{-1}. Three structures are found, and a model with quantum interference among these structures provides a good description of the data. A new structure is observed with a local significance above 5 standard deviations at a mass of 6638_{-38}^{+43}(stat)_{-31}^{+16}(syst)  MeV. Another structure with even higher significance is found at a mass of 6847_{-28}^{+44}(stat)_{-20}^{+48}(syst)  MeV, which is consistent with the X(6900) resonance reported by the LHCb experiment and confirmed by the ATLAS experiment. Evidence for another new structure, with a local significance of 4.7 standard deviations, is found at a mass of 7134_{-25}^{+48}(stat)_{-15}^{+41}(syst)  MeV. Results are also reported for a model without interference, which does not fit the data as well and shows mass shifts up to 150 MeV relative to the model with interference.
  14. Observation of WWγ Production and Search for Hγ Production in Proton-Proton Collisions at sqrt[s]=13  TeV
    Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, et al.
    Phys Rev Lett, 2024 Mar 22;132(12):121901.
    PMID: 38579207 DOI: 10.1103/PhysRevLett.132.121901
    The observation of WWγ production in proton-proton collisions at a center-of-mass energy of 13 TeV with an integrated luminosity of 138  fb^{-1} is presented. The observed (expected) significance is 5.6 (5.1) standard deviations. Events are selected by requiring exactly two leptons (one electron and one muon) of opposite charge, moderate missing transverse momentum, and a photon. The measured fiducial cross section for WWγ is 5.9±0.8(stat)±0.8(syst)±0.7(modeling)  fb, in agreement with the next-to-leading order quantum chromodynamics prediction. The analysis is extended with a search for the associated production of the Higgs boson and a photon, which is generated by a coupling of the Higgs boson to light quarks. The result is used to constrain the Higgs boson couplings to light quarks.
  15. Fulltext Potential for Person-to-Person Transmission of Henipaviruses: A Systematic Review of the Literature
    Hegde ST, Lee KH, Styczynski A, Jones FK, Gomes I, Das P, et al.
    J Infect Dis, 2024 Mar 14;229(3):733-742.
    PMID: 37925626 DOI: 10.1093/infdis/jiad467
    Nipah virus Bangladesh (NiVB) is a bat-borne zoonosis transmitted between people through the respiratory route. The risk posed by related henipaviruses, including Hendra virus (HeV) and Nipah virus Malaysia (NiVM), is less clear. We conducted a broad search of the literature encompassing both human infections and animal models to synthesize evidence about potential for person-to-person spread. More than 600 human infections have been reported in the literature, but information on viral shedding was only available for 40 case-patients. There is substantial evidence demonstrating person-to-person transmission of NiVB, and some evidence for NiVM. Less direct evidence is available about the risk for person-to-person transmission of HeV, but animals infected with HeV shed more virus in the respiratory tract than those infected with NiVM, suggesting potential for transmission. As the group of known henipaviruses continues to grow, shared protocols for conducting and reporting from human investigations and animal experiments are urgently needed.
  16. Fulltext Chondrosarcoma of the nasal septum
    Indudharan R, Das PK, Azman AA, Suhaiza S
    Singapore Med J, 1998 Aug;39(8):376-9.
    PMID: 9844502
    A case of chondrosarcoma of the nasal septum is presented with the result of treatment. The patient was admitted for a growth in the nose of four years' duration. Fine needle aspiration for cytological examination was suggestive of squamous cell carcinoma. She was treated with lateral rhinotomy and wide excision followed by septorhinoplasty. Histological examination showed that the lesion was chondrosarcoma. The patient remained free of disease 26 months after surgery.
  17. Fulltext Verrucous carcinoma of maxillary antrum
    Indudharan R, Das PK, Thida T
    Singapore Med J, 1996 Oct;37(5):559-61.
    PMID: 9046219
    Verrucous carcinoma of the paranasal sinuses is a rare malignant tumour. It occurs most frequently in the oral cavity and larynx. We present a case of extensive verrucous carcinoma of the maxillary sinus. This paper discusses the clinical and histological features and modes of treatment. All previous reports of verrucous carcinoma cases of paranasal sinuses are reviewed.
  18. Fulltext Effects of alternate nostril breathing exercise on cardiorespiratory functions in healthy young adults
    Jahan I, Begum M, Akhter S, Islam MZ, Jahan N, Samad N, et al.
    Ann Afr Med, 2021 7 3;20(2):69-77.
    PMID: 34213471 DOI: 10.4103/aam.aam_114_20
    Introduction: Alternate nostril breathing (ANB) is an effective breathing exercise with therapeutic benefits on cardiorespiratory functions for healthy and diseased individuals. This study was conducted to assess the effects of ANB exercise on cardiorespiratory tasks in healthy adults.

    Materials and Methods: This randomized experimental study was conducted in the Department of Physiology, Chittagong Medical College, Chattogram, from July 2017 to June 2018. A total of 100 1st-year students, aged between 18 and 20 years, were included by a random sampling method. Fifty participants (25 males and 25 females) were enrolled in the experimental group, while age- and body mass index-matched another 50 participants (25 males and 25 females) served as the control group. Experimental group participants performed ANB exercise for 4 weeks. Cardiorespiratory parameters (pulse rate, blood pressure, forced vital capacity, forced expiratory volume in 1st s [FEV1], and peak expiratory flow rate [PEFR] were measured. Data were taken at the start and after 4 weeks in both groups.

    Results: Independent t-test showed no significant differences in the cardiorespiratory functions between the experimental and control groups among the male and female participants, except for the females' PEFR which showed small differences. On the other hand, repeated measure ANOVA shows significant improvement in the experimental groups among males (P < 0.001-0.028) and females (P < 0.001-0.001) in all the cardiorespiratory functions measured, except for the FEV1 and PEFR among males.

    Conclusion: The results of this study suggest that cardiorespiratory functions were improved after breathing exercise, and therefore, ANB can be recommended for increasing cardiorespiratory efficiency.

  19. Fulltext Disappearing bone disease: a case report
    Kareem BA, Das PK, Saad R
    Singapore Med J, 1994 Oct;35(5):527-8.
    PMID: 7701379
    Disappearing bone disease is a rare condition and usually affects young adults. Its aetiology is not known. A case of a 12-year-old female child, who had a fall and sustained a fracture mid shaft of femur and supracondylar region, is reported. On follow-up subsequent X-ray showed extensive osteolysis which was progressively affecting the other side of the pelvic girdle and femur. She was put on trial of calcitonin 50 IU by nasal spray for six months but there was no improvement. However, during the past three and half years the disease process had progressively extended to the other side of pelvic girdle and femur with fatal outcome. To the knowledge of the authors such progression in a short time has not been reported in any case so far.
  20. Fulltext Analysis Comparing the Recovery of Airway Reflexes and Cognitive Ability After Sevoflurane with Desflurane Anesthesia
    Khan MWA, Das P, Bhavani V, Thakkar S, Nagella SP, Dubey A
    J Pharm Bioallied Sci, 2024 Feb;16(Suppl 1):S305-S307.
    PMID: 38595352 DOI: 10.4103/jpbs.jpbs_502_23
    INTRODUCTION: Although sevoflurane and desflurane have nearly identical blood-gas solubilities, current research suggests that airway reflexes recover more quickly with desflurane than sevoflurane; however, cognitive function recovery varies substantially. The current study was piloted to appraise the lengths of time needed to recover from anesthesia following desflurane and sevoflurane anesthesia.

    MATERIALS AND METHODS: A prospective clinical trial was piloted among 70 adult non-obese subjects who underwent elective surgery and were classified I-II by the "American Association of Anesthesiologists (ASA)". Sevoflurane and desflurane were tested among the subjects who were equally distributed. These agents were used in accordance with a normal general anaesthesia procedure. After they were extubated, tests for regaining cognitive function and airway reflexes were carried out, and different time intervals were recorded. The observations were calculated and P < 0.05 was used to conduct the statistical analysis.

    RESULTS: The average amount of time that passed between the patient's first vocal response and their first successful completion of the swallowing test was analogous between the two groups (T2) with 5.25 ± 3.11 vs 5.01 ± 2.12 in sevoflurane and desflurane, respectively. There was no significant variance at T2. For all the other time intervals of T1, T3, and T4, there was evidence of the significant variance.(P = 0.003; 0.0013; <0.001, respectively).

    CONCLUSION: Desflurane causes patients to recover more quickly than sevoflurane does after laparoscopic cholecystectomy under controlled circumstances.

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