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Singhai A, Babu S, Singh B. Relevance of pVHL expression in biological profile of renal cell carcinomas. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30685-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dessai SB, Patil VM, Chakraborty S, Babu S, Bhattacharjee A, Nayanar S, Vikram S, Balasubramanian S. An audit of cytoreductive surgeries in ovarian cancer from a rural based cancer center. Indian J Cancer 2017; 53:284-287. [PMID: 28071628 DOI: 10.4103/0019-509x.197743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND AND OBJECTIVE Ovarian cancers are frequently seen at an advanced stage in our center. This audit was planned to see the morbidity and efficacy of different types of cytoreductive surgeries (radical vs. ultra-radical) done in such patients. METHODS This was a retrospective analysis of all ovarian cancer patients who underwent cytoreductive surgery at our center from January 2009 to August 2013. The case records of these patients were reviewed and the demographic, disease-related and treatment-related data were extracted. RESULTS Fifty-fivepatients were identified. Ten (18.2%) patients underwent primary cytoreduction while 45 patients had (81.8%) interval cytoreduction. The resections achieved were optimal in 50 patients (90.9%) and suboptimal in five patients (9.1%). The postoperative median blood loss was 400 (350-600) mL. The median time interval for surgery was 4.0 h (3-5 h). The type of resection achieved (optimal vs. suboptimal) was the only factor affecting the progression free survival (PFS) (Hazard ratio = 0.08 95% confidence interval 0.02-0.3). There was no significant difference in postoperative morbidity in patients undergoing the ultra-radical surgery as compared to those who underwent radical surgery. CONCLUSION Optimal cytoreduction may improve PFS in advanced ovarian cancer patients and needs to be done even if it mandates an ultra-radical surgery.
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Balakrishna A, Babu S, Kumar V, Ntwaeaborwa OM, Ratnakaram YC. Optical properties and spectroscopic study of different modifier based Pr(3+):LiFB glasses as optical amplifiers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 170:167-173. [PMID: 27434876 DOI: 10.1016/j.saa.2016.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
In this paper, we report the preparation and optical characterization of Pr(3+) doped lithium fluoro borate (LiFB) glasses for six different chemical compositions of Li2B4O7-BaF2-NaF-MO (where M=Mg, Ca, Cd and Pb), Li2B4O7-BaF2-NaF-MgO-CaO and Li2B4O7-BaF2-NaF-CdO-PbO. The structural and optical properties of these glasses were characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), optical absorption and photoluminescence techniques. The optical absorption spectra of Pr(3+) ions in LiFB glasses have been recorded in the UV-VIS-NIR region. The optical absorption data are used to calculate various spectroscopic parameters such as Racah (E(1), E(2), E(3)) and spin-orbit interaction (ξ4f) parameters. Judd-Ofelt (J-O) (Ωλ where λ=2, 4 and 6) intensity parameters were determined by applying J-O theory, which in turn used to calculate the radiative properties such as radiative transition probabilities (A), radiative lifetimes (τR), integrated absorption cross-sections (Σ) and branching ratios (βr) for all emission levels of Pr(3+) ion in different LiFB glass matrices. By using the J-O theory and luminescence parameters, stimulated emission cross sections (σp) of prominent transitions, (3)P0→(3)H4 and (1)D2→(3)H4 of Pr(3+) ion in all LiFB glasses were calculated. (3)P0→(3)H4 possesses higher branching ratios and stimulated emission cross-sections for the Pr(3+):LiFB(Mg-Ca) glass, which can be used as a best laser excitation. The optical gain parameter (σpxτR) was noticed higher in Pr(3+):LiFB(Mg-Ca) and Pr(3+):LiFB(Cd-Pb) glasses for the transition (3)P0→(3)H4 transition, and these glasses have potential for optical amplification at 488 nm wavelength.
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Chandra Babu B, Rao BV, Ravi M, Babu S. Structural, microstructural, optical, and dielectric properties of Mn2+: Willemite Zn2SiO4 nanocomposites obtained by a sol-gel method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.074] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hicks AP, Brown T, Chauhan A, Adeniji K, Quint M, Babu S. S55 Using continuous positive airway pressure (cpap) in excessive dynamic airway collapse (edac). Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Patil VM, Chakraborty S, Dessai S, Kumar SS, Ratheesan K, Bindu T, Geetha M, Sujith K, Babu S, Raghavan V, Nair CK, Syam V, Surij S, Sathessan B. Patterns of care in geriatric cancer patients - An audit from a rural based hospital cancer registry in Kerala. Indian J Cancer 2016; 52:157-61. [PMID: 26838009 DOI: 10.4103/0019-509x.175590] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND There is deficit of data from India on elderly patients with cancer. Comprehensive geriatric assessment may lead to a better decision making capacity in this population. However, routine implementation of such assessment is resource consuming. AIM The aim of this study was to determine the patterns of care in elderly patients treated at a tertiary rural cancer center in India. MATERIALS AND METHODS All patients with age 70 or above with solid tumors without any definitive treatment prior to the registration at our center and registered between 01/01/2010 and 31/12/2011 were selected for this study. The baseline demographic pattern and the pattern of care of treatment were analyzed. SPSS version 16 (IBM Inc, Armonk, New York, U.S.) was used for analysis. Descriptive data are provided. RESULTS A total of 761 patients were evaluable subject to the aforementioned inclusion criteria. The median age of this cohort was 75 years (70-95 years). The most frequent primary sites of malignancies in 451 males were head neck (32.4%), lung (23.3%) and gastrointestinal (23.3%). In 310 females, the most common sites were head neck (31.6%), gynecological (18.4%) and gastrointestinal (24.5%). 228 (30%) of the patients had localized disease, 376 (49.4%) had loco-regionally advanced disease and 145 (19.1%) had distant metastases at presentation. 334 (46.32%) of patients were treated with curative intent. On logistic regression analysis the factors that predicted use of curative intent treatment were age <75 years, performance status 0-1, primary site and clinical extent of disease. CONCLUSION Routine comprehensive geriatric assessment needs to be implemented in our setting as almost 50% of our geriatric patients undergo curative intent treatment.
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Bodenham Chair A, Babu S, Bennett J, Binks R, Fee P, Fox B, Johnston AJ, Klein AA, Langton JA, Mclure H, Tighe SQM. Association of Anaesthetists of Great Britain and Ireland: Safe vascular access 2016. Anaesthesia 2016; 71:573-85. [PMID: 26888253 PMCID: PMC5067617 DOI: 10.1111/anae.13360] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2015] [Indexed: 12/13/2022]
Abstract
Safe vascular access is integral to anaesthetic and critical care practice, but procedures are a frequent source of patient adverse events. Ensuring safe and effective approaches to vascular catheter insertion should be a priority for all practitioners. New technology such as ultrasound and other imaging has increased the number of tools available. This guidance was created using review of current practice and literature, as well as expert opinion. The result is a consensus document which provides practical advice on the safe insertion and removal of vascular access devices.
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Chandragiri S, Raju S, Mukku KK, Babu S, Uppin MS. Idiopathic nodular glomerulosclerosis: Report of two cases and review of literature. Indian J Nephrol 2016; 26:145-8. [PMID: 27051142 PMCID: PMC4795433 DOI: 10.4103/0971-4065.164233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Nodular glomerulosclerosis, a pathological finding characterized by areas of marked mesangial expansion with accentuated glomerular nodularity can be seen in a number of conditions including diabetic nephropathy, amyloidosis, light chain deposition disease, fibrillary and immunotactoid glomerulopathy, collagen type III disease, nodular membranoproliferative glomerulonephritis, and Takayasu's arteritis. Idiopathic nodular glomerulosclerosis is a diagnosis of exclusion and is reported in patients with hypertension, smoking, chronic obstructive pulmonary disease, obesity, metabolic syndrome, etc. We report two cases of idiopathic nodular glomerulosclerosis, one in obese hypertensive male and the other in nonhypertensive, nonobese female patient.
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Ahmed A, Nayak S, Babu S, Vyakarnam A. Impact of Type I IFN dysregulation in M. tuberculosis infection on T cell responses. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Nair CK, Patil VM, Raghavan V, Babu S, Nayanar S. Retrospective audit of clinico-pathologic features and treatment outcomes in a cohort of elderly non-Hodgkin's lymphoma patients in a tertiary cancer center. Indian J Cancer 2016; 52:541-4. [PMID: 26960470 DOI: 10.4103/0019-509x.178434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION There is limited data from India regarding elderly non-Hodgkin's lymphomas (NHL) patients. Hence, this audit was planned to study the clinic-pathological features and treatment outcomes in elderly NHL patients. METHODS Retrospective analysis of all NHL patients above age of 59 years treated at the author's institute, between December 2010 and December 2013 was done. Case records were reviewed for baseline details, staging details, prognostic factors, treatment delivered, response, toxicity and efficacy. SPSS version 16 (IBM, Newyork) was used for analysis. Descriptive statistics was performed. Kaplan-Meir survival analysis was done for estimation of progression-free survival (PFS) and overall survival (OS). Univariate analysis was done for identifying factors affecting PFS and OS. RESULTS Out of 141 NHL patients, 67 patients were identified subjected to the inclusion criteria. The median age was 68 years (60-92). Majority were B-cell NHL (86.6%). The commonest subtype in B-cell was diffuse large B-cell lymphoma (55.2%). Fifty-four patients took treatment. The treatment intent was curative in 41 patients (61.2%). Among the patients receiving curative treatment, 16 patients couldn't receive treatment in accordance with NCCN guidelines due to financial issues. Two years PFS was 55%. Two years PFS for B-cell NHL and T-cell NHL were 55% and 50% respectively (P = 0.982). Two years PFS for standard Rx and nonstandard Rx were 62% and 50% respectively, but it didn't reach statistical significance (P = 0.537). Two years OS for the entire cohort was 84%. CONCLUSION Standard treatment in accordance with guidelines can be delivered in elderly patients irrespective of age. There is a need for creating financial assistance for patients, so that potentially curative treatments are not denied.
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Patil VM, Muttath G, Babu S, Kumar ST, Jones J, Sen S, Chakraborty S. Does the use of induction chemotherapy in oral cavity cancer compromise subsequent loco-regional treatment delivery: Results from a matched pair analysis. Indian J Cancer 2016; 52:632-6. [PMID: 26960501 DOI: 10.4103/0019-509x.178442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Neoadjuvant chemotherapy is being increasingly used in patients with unresectable oral cavity cancers to make them resectable. However, its impact on locoregional treatment delivery in such setting remains poorly studied. AIMS To evaluate the impact of neoadjuvant chemotherapy on delivery of further locoregional treatment. SETTINGS AND DESIGN Mono institutional retrospective audit of patients with oral cavity squamous cell cancers treated with neoadjuvant triplet chemotherapy in India. MATERIALS AND METHODS Patients receiving neoadjuvant chemotherapy (n = 14) from May 2012 to April 2014 were matched 1:2 to patients undergoing upfront surgery (n = 28) based on age (>60 or 60 and less), gender (male or female) and subsite site (tongue and floor of mouth or buccoalveolar complex). Data regarding factors related to the delivery of locoregional treatment and toxicities were compiled. STATISTICAL ANALYSIS Descriptive analysis in the form of median (range) for continuous variables and frequencies for categorical variables. RESULTS Patients undergoing neoadjuvant chemotherapy required more extensive resections and had greater operative time (460 vs. 415 min, P < 0.001). A greater incidence of locoregional wound complications was seen as a consequence (57.1% vs. 14.3%, P, 0.01). However, toxicities during radiotherapy were not substantially different between the two groups and compliance to radiation was also similar. Total package time of 100 days or less, was maintained in 90% of patients in both groups. CONCLUSIONS Delivery of neoadjuvant chemotherapy does not impair the ability to deliver locoregional treatment.
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Priya R, Sumitha R, Doss CGP, Rajasekaran C, Babu S, Seenivasan R, Siva R. Molecular Docking and Molecular Dynamics to Identify a Novel Human Immunodeficiency Virus Inhibitor from Alkaloids of Toddalia asiatica. Pharmacogn Mag 2016; 11:S414-22. [PMID: 26929575 PMCID: PMC4745211 DOI: 10.4103/0973-1296.168947] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background: Acquired immunodeficiency syndrome caused by human immunodeficiency virus (HIV) is an immunosuppressive disease. Over the past decades, it has plagued human health due to the grave consequences in its harness. Objective: For this reason, anti-HIV agents are imperative, and the search for the same from natural resources would assure the safety. Materials and Methods: In this investigation we have performed molecular docking, molecular property prediction, drug-likeness score, and molecular dynamics (MD) simulation to develop a novel anti-HIV drug. We have screened 12 alkaloids from a medicinal plant Toddalia asiatica for its probabilistic binding with the active site of the HIV-1-reverse transcriptase (HIV-1-RT) domain (the major contributor to the onset of the disease). Results: The docking results were evaluated based on free energies of binding (ΔG), and the results suggested toddanol, toddanone, and toddalenone to be potent inhibitors of HIV-1-RT. In addition, the alkaloids were subjected to molecular property prediction analysis. Toddanol and toddanone with more rotatable bonds were found to have a drug-likeness score of 0.23 and 0.11, respectively. These scores were comparable with the standard anti-HIV drug zidovudine with a model score 0.28. Finally, two characteristic protein-ligand complexes were exposed to MD simulation to determine the stability of the predicted conformations. Conclusion: The toddanol-RT complex showed higher stability and stronger H-bonds than toddanone-RT complex. Based on these observations, we firmly believe that the alkaloid toddanol could aid in efficient HIV-1 drug discovery. SUMMARY In the present study, the molecular docking and MD simulations are performed to explore the possible binding mode of HIV 1 RT with 12 alkaloids of T. asiatica. Molecular docking by AutoDock4 revealed three alkaloids toddanol, toddanone, and toddalenone with highest binding affinity towards HIV 1 RT. The drug likeness model score revealed a positive score for toddanol and toddanone which is comparable to the drug likeness score of the standard anti HIV drug zidovudine. Results from simulation analysis revealed that toddanol RT complex is more stable than toddanone RT complex inferring toddanol as a potential anti HIV drug molecule.
Abbreviations used: HIV: Human immunodeficiency virus, HIV 1 RT: HIV 1 reverse transcriptase, RNase H: Ribonuclease H, MD: Molecular dynamics, PDB: Protein databank, RMSD: Root mean square deviation, RMSF: Root mean square fluctuation.
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Babu S, Varghese BT, Iype EM, George PS, Sebastian P. Evaluation of stapled closure following laryngectomy for carcinoma larynx in an Indian tertiary cancer centre. Indian J Cancer 2016; 52:376-80. [PMID: 26905144 DOI: 10.4103/0019-509x.176728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND AND AIM Stapling devices are used for pharyngeal closure after laryngectomy for the past few decades although it has not gained wide acceptance. This study is aimed at evaluating the role of stapler in pharyngeal closure after laryngectomy. METHODS Thirty consecutive patients who underwent stapled laryngectomy at our institution from October 2004 to February 2008 were evaluated retrospectively. Linear stapler (Proximate TX 60; Ethicon Inc.) was used for closure of neopharynx. RESULTS There were 28 males and 2 females with mean age of 54.5 years (54.5 ± 11.2). Nineteen of these patients (63.3%) had salvage laryngectomy and two patients (6.7%) had laryngectomy for a second primary tumor. Twenty-eight patients had total laryngectomy (TL), whereas two had extended TL. Eight patients had salivary leak (26.7%). Of these, 6 (75%) had prior radiation. All salivary leaks except one were managed conservatively. Follow-up ranged from 7 to 54 months (median: 21 months). Seven patients (23.3%) developed recurrence, six at the stoma, of which 5 (83.3%) had initial extension of disease to the subglottis. Four-year disease-free survival was 54.4%. CONCLUSION Pharyngeal closure by linear stapler is an efficient and safe method of fashioning the neopharynx after laryngectomy with no added risk of occurrence of pharyngocutaneous fistula in primary and salvage laryngectomies.
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Babu S, Redmond A, Lacey M, Gardeil F. A retrospective review of the type of anaesthesia used for LLETZ: proposal for a categorisation audit tool. Ir J Med Sci 2016; 186:239-241. [DOI: 10.1007/s11845-016-1416-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Accepted: 01/26/2016] [Indexed: 11/28/2022]
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Kamath M, D L, Lakshmaiah K, Jacob L, Kumar R, Babu S, Babu G, Komaranchath A, S A. 139P Neuroendocrine neoplasms of the esophagus - emerging clinicopathological trends and outcomes of a rare entity. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv522.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Namratha M, Lokanatha D, Lakshmaiah K, Babu G, Jacob L, Babu S, Lokesh K, Saldanha S. 298P A study of comparison of prognostic models in peripheral T cell lymphoma in a tertiary care centre in South India. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Garg S, Lakshmaiah K, Cs P, Rao C, Lokesh K, Babu G, Babu S, D L, Jacob L, Lk R, Ah R. 294P Risk stratification of diffuse large B cell lymphoma using IHC. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Saldanha S, Lakshmaiah K, Lokanatha D, Babu G, Babu S, Jacob L, Lokesh K, Rudresh A, Vishwanath S, Rajeev L, Kiran P. 291P Diffuse large B cell lymphoma in the elderly - an Indian perspective. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Venkata Rao K, Babu S, Venkataiah G, Ratnakaram Y. Optical spectroscopy of Dy3+ doped borate glasses for luminescence applications. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.04.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Babu S. Long-term effects of proton pump inhibitors. JOURNAL OF MEDICAL AND SCIENTIFIC RESEARCH 2015. [DOI: 10.17727/jmsr.2015/3-019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Chakraborty S, Patil VM, Babu S, Muttath G, Thiagarajan SK. Locoregional recurrences after post-operative volumetric modulated arc radiotherapy (VMAT) in oral cavity cancers in a resource constrained setting: experience and lessons learned. Br J Radiol 2015; 88:20140795. [PMID: 25645107 DOI: 10.1259/bjr.20140795] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The conformal nature of dose distribution produced by volumetric modulated arc radiotherapy (VMAT) increases the risk of geographic miss. Data regarding patterns of failure after VMAT in oral cavity cancers in resource-constrained settings are scarce. The aim of the present study was to ascertain the patterns of failure in patients receiving adjuvant VMAT intensity-modulated radiotherapy (IMRT) for oral cavity cancer in Malabar Cancer Center, Kerala, India. METHODS Data of patients with oral cavity cancer receiving adjuvant VMAT IMRT between April 2012 and March 2014 were collected. Recurrent volumes were delineated on the treatment planning images and classified as defined by Dawson et al (Dawson LA, Anzai Y, Marsh L, Martel MK, Paulino A, Ship JA, et al. Patterns of local-regional recurrence following parotid-sparing conformal and segmental intensity-modulated radiotherapy for head and neck cancer. Int J Radiat Oncol Biol Phys 2000; 46: 1117-26). RESULTS 75 patients with a median follow-up of 24 months were analysed. 41 (55%) patients had oral tongue cancers and 52 (69%) of the patients had Stage IVA cancers. The 2-year locoregional recurrence-free survival, disease-free survival and overall survival were 88.9%, 82.1% and 80.5%, respectively. With a median time to failure of 6.5 months, five infield and three outfield failures were identified. CONCLUSION A relatively low rate of outfield failure and lack of marginal failure attests to the efficacy of VMAT in such patients. Modifications to our existing target delineation policy have been proposed. ADVANCES IN KNOWLEDGE The use of standardized target delineation methods allows safe use of VMAT IMRT even in resource-constrained settings.
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Babu S, Reddy Prasad V, Rajesh D, Ratnakaram Y. Luminescence properties of Dy3+ doped different fluoro-phosphate glasses for solid state lighting applications. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.09.080] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gunatilake S, Parker L, Bishop L, Babu S, Clark R, Chauhan A. 46: Operator sensitivity for pleural malignancy at medical thoracoscopy. Lung Cancer 2015. [DOI: 10.1016/s0169-5002(15)50046-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lakshmaiah KC, Das U, Suresh TM, Lokanatha D, Babu GK, Jacob LA, Babu S. A study of triple negative breast cancer at a tertiary cancer care center in southern India. Ann Med Health Sci Res 2015; 4:933-7. [PMID: 25506489 PMCID: PMC4250994 DOI: 10.4103/2141-9248.144917] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: Triple negative breast cancers (TNBCs) are a diverse and heterogeneous group of tumors that by definition lack estrogen and progesterone receptors and amplification of the HER-2 gene. The majority of the tumors classified as TNBCs are highly malignant, patients are usually young and only a subgroup of patients responds to conventional chemotherapy with a favorable prognosis. Various studies have been reported in western literature on TNBCs, all highlighting the poor prognosis of this subtype. However, extensive data from India is lacking. Aim: The aim of this study was to analyze the epidemiological and clinical profile of TNBCs at our institute. Materials and Methods: This was the retrospective study carried out in Tertiary Cancer Care Center in South India. Case files of all breast cancer patients were reviewed from the hospital database registered in 1 year and TNBC patients were selected for the study. Patient's characteristic, treatment, and histological features were analyzed. Results: A total of 322 patients were registered during the period of 1 year and 26% (84/322) of total patients were TNBC. Median age of presentation was 44.5 years. About 94% (79/84) of patients had first full-term delivery before the age of 30 years. The most common presenting symptom was left sided breast lump. Locally advanced and early breast cancer (EBC) was 51% (43/84) and 42% (36/84), respectively. Metastatic breast cancer was seen in five patients. The highest numbers of patients were node negative disease (36.9%) [31/84], followed by N1 30.95% (26/84). Most of the patients had high-grade tumor. 94% (34/36) of cases of EBC had undergone upfront modified radical mastectomy. Invasive ductal carcinoma was the predominant histology except one who had medullary carcinoma. Twenty-four patients received neoadjuvant chemotherapy (NACT). There was no pathological complete remission, but all patients responded to NACT. Metastatic disease was seen in five patients. All patients had bone metastasis. Conclusions: TNBCs are highly aggressive subtype, with high grade with limited treatment options and very poor prognosis. Incidence is more in our country than the western literature. Even in our country also the incidence is varies in different region. TNBCs are significantly associated with young aged patients. There was a lack of association between tumor size and lymph node positivity.
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Gunatilake S, Mercer R, Babu S, Bishop L, Chauhan A. S116 Systemic Chemotherapy And The Risk Of Pleural Infection With Indwelling Pleural Catheters (ipcs). Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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