Browsing by Author "D'cruz, A K"
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Item Cetuximab with radiotherapy in patients with loco-regionally advanced squamous cell carcinoma of head and neck unsuitable or ineligible for concurrent platinum-based chemo-radiotherapy: Ready for routine clinical practice.(2011-04) Agarwal, J P; Gupta, T; Kalyani, N; Budrukkar, A; Laskar, S G; Murthy, V; Kumar, P; Narohna, V; Pai, P; Chaturvedi, P; D'cruz, A KPurpose : To report outcomes of cetuximab concurrent with radiotherapy in advanced head-neck cancer unsuitable for platinum-based chemo-radiotherapy. Materials and Methods : Retrospective chart review of 37 patients treated with cetuximab and radiotherapy at a comprehensive cancer centre. Results : Median age of study cohort was 59 years. Thirty four (92%) patients had advanced stage disease (stage III-IV). Reasons for ineligibility for platinum included impaired creatinine-clearance, old age, and/or co-morbidities. Thirty-two (86%) patients completed planned radiotherapy without interruption; 29 (80%) patients received ≥6 cycles of cetuximab. Fifteen patients (40.5%) developed ≥grade 3 dermatitis; 9 patients (25%) experienced ≥grade 3 mucositis. At a median follow-up of 16 months, the 2-year loco-regional control, disease-free survival, and overall survival was 35.5%, 29.5%, and 44.4% respectively. Stage grouping and severe dermatitis were significant predictors of outcome. Conclusions : Cetuximab concurrent with radiotherapy is a reasonable alternative in advanced head-neck cancer patients with acceptable compliance and outcomes, but higher skin toxicity.Item Microbial colonization of Provox voice prosthesis in the Indian scenario.(2014-04) Chaturvedi, P; Syed, S; Pawar, P V; Kelkar, R; Biswas, S; Datta, S; Nair, D; Chaukar, D; D'cruz, A KINTRODUCTION: Tracheoesophageal speech using the voice prosthesis is considered to be the “gold standard” with success rates as high as 90%. Despite significant developments, majority eventually develop dysfunction due to microbial deterioration. We did a pilot study of 58 laryngectomy patients who developed prosthesis dysfunction. MATERIALS AND METHODS: A total of 58 laryngectomy patients who had their dysfunctional prosthesis removed were included in this study. Dysfunctional prostheses were removed and examined. Esophageal and tracheal flanges were examined separately. After obtaining pure fungal and bacterial cultures, the yeast strains were identified. Bacteria were identified with the light microscope and gram staining. We analyzed prosthesis lifespan and probable factors affecting it. RESULTS: Central leak was found in 43% cases while in 57% peri‑prosthetic leakage was the most common reason for prosthesis replacement. Microbial analysis revealed a combination of yeast and bacteria in approximately 55% culture samples. Out of these, almost 90% had the presence of single yeast species with bacteria. Pure fungal culture was identified in rest of the 45% cultures while none detected pure bacterial forms. Candida tropicalis was the solitary yeast in 81% while Candida albicans was seen in 10% as the solitary yeast. Bacterial isolates revealed Klebsiella pneumonia in 19%, Escherichia coli in 8% while Staphylococcus aureus was grown in 1% cultures. The consumption of curd (P = 0.036, 95% confidence intervals [CI]: 2.292‑64.285) to have a significant correlation of the mean prosthesis lifespan. Consumption of curd (P = 0.001, 95% CI: 0.564‑2.008) and history of prior radiotherapy (P = 0.015, 95% CI: 0.104‑0.909) had a significant bearing on the Provox prosthesis lifespan. CONCLUSIONS: Candida is the most common organism grown on voice prosthesis in Indian scenario. Consumption of curd and history of prior radiotherapy significantly affect Provox prosthesis lifespan.Item A prospective study of pharyngocutaneous fistulas following total laryngectomy.(2005-01-14) Qureshi, S S; Chaturvedi, P; Pai, P S; Chaukar, D A; Deshpande, M S; Pathak, K A; D'cruz, A KPharyngocutaneous (PC) fistula is a common complication following laryngectomy. It leads to increased morbidity, delay in adjuvant treatment, prolonged hospitalization and an increase in treatment costs. Although a number of factors that result in PC fistula have been described, there is still no agreement on the most significant factors. We undertook a prospective study to critically analyze PC fistula and its association with various tumors, patient and treatment related factors. This was a prospective study that included 143 patients who underwent laryngeal surgery for squamous cell carcinoma of the larynx and pyriform sinus. Use of pectoralis major myocutaneous flap to reconstruct the neopharynx, primary disease in pyriform and extensive soft tissue infiltration were significantly associated with PC fistula. Prior treatment (radiotherapy and chemotherapy), type of closure (T closure, Y closure and vertical closure), Layers of closure (full thickness interrupted, submucosal interrupted, submucosal continuous) type of suture material (silk, vicryl ), age, sex, stage, preoperative tracheostomy, cut margin status, pre/postoperative hemoglobin and experience of surgeons did not relate significantly.Item Utility of PET in unknown primary with cervical metastasis: A retrospective study.(2011-04) Dandekar, M R; Kannan, S; Rangarajan, V; Purandare, N C; Chaukar, D A; Deshmukh, A; D'cruz, A KBackground: FDG-PET is recommended as an investigation in unknown primary tumors, but its definitive role and cost effectiveness are yet to be established. Aims: dditional value of FDG-PET over conventional imaging in unknown primary tumors with cervical metastasis. Setting and Design: Retrospective study in a tertiary level oncology centre. Materials and Methods: A total of 112 patients were divided into three groups; 53 with conventional modalities (either computed tomography or magnetic resonance imaging) (group I), 59 with FDG-PET (group II), and group III (subgroup of group II) with both (40 patients). Statistical Analysis: Sensitivity and specificity of both conventional modality and PET were calculated. Association between neck nodes and distant metastasis was analysed using multivariate logistic regression analysis. Results: Sensitivity and specificity for conventional modalities was 92.3% and 50% and sensitivity and specificity of FDG-PET was 92.8% and 71.4%, respectively. FDG-PET detected metastasis in 52.54% of patients. Multivariate logistic regression analysis showed statistically significant association between distant metastasis and multiplicity of nodes (N2b, N2c) (P = 0.007). Among all patients with low neck nodes in group II, FDG-PET detected primaries in 12 patients, 9 of which were infraclavicular (75%). FDG-PET added information to conventional imaging in 32.5% of patients and influenced an overall change in management in 38.9% of patients. Conclusions: FDG-PET is a valuable tool influencing change of management in unknown primary with cervical metastasis. It is recommended especially in the presence of low or multiple neck nodes in view of high incidence of infraclavicular primary and distant metastasis, respectively.Item Validation of the University of Washington quality of life questionnaires for head and neck cancer patients in India.(2007-10-07) D'cruz, A K; Yueh, B; Das, A K; McDowell, J A; Chaukar, D A; Ernest, A WQuality of life (QOL) is a multidimensional construct capturing the subjective wellbeing of patients in physical, emotional, functional and social domains. Available work on post treatment QOL have only been made in western literature and less in Indian literature. AIMS: To translate the UW-QOL into both Hindi and Marathi and psychometrically validate the translation in HandN cancer patients in Indian population. SETTINGS AND DESIGN: A prospective study was done at the Tata Memorial Hospital for patients who were treated for H and N cancers. MATERIALS AND METHODS: 147 patients were enrolled from January to April 2005. The study was carried out in two phases. Patients were given translated versions of the UW-QOL and EORTC QOL questionnaires pre-operatively, 15 days post-operatively and then three months post-operatively. RESULTS: Both the Hindi and Marathi translations had strong internal consistency (Cronbach's alpha=0.7971 and 0.7839). UW-QOL composite scores correlated well with the global questions on overall QOL in both the Hindi (r=0.69) and Marathi (r=0.66) translations and also with T-stage. QOL scores were worse three months post-operatively than pre-operatively and for patients undergoing surgery that violated the mucosa. A strong correlations was observed (r>0.50) between all similar domains on the UW-QOL and EORTC HandN35 except the saliva item on the Marathi translation, where r< 0.50, but P-values were significant. CONCLUSIONS: The Marathi and Hindi versions of the UW-QOL appear to be valid and reliable instruments for assessing the QOL in Indian population and will be a vital tool for achieving greater insight into the short- and the long term QOL.