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Esther Uña


aunacid@hotmail.com

Journal articles

2010
2009
Esther Uña, Francisco Gandía, Jose Luis Duque (2009)  Tongue paralysis after orotracheal intubation in a patient with primary mediastinal tumor: a case report.   Cases J 2: 12  
Abstract: INTRODUCTION: Several lesions have been described as post-intubation complications. Most frequent are injuries of the pharynx/larynx or trachea. Cranial nerve injury following routine endo-tracheal intubation appears to be rare, and most reports describe Tapia's syndrome with hypoglossus/recurrent laryngeal nerve paralysis; cases that describe only bilateral hypoglossus palsy are infrequent. The cause is attributed to neuropathy of the nerve, provoked by compression following inflation of the cuff within the larynx or damage after neck hyperextension during a difficult intubation. However, similar cases after non-traumatic intubation have not been reported. CASE PRESENTATION: We report here a case of bilateral hypoglossus palsy in a young man undergoing a diagnostic anterior mediastinotomy that was attributed to prolonged non-complicated oro-tracheal intubation. Progressive recovery of function by the patient supports neuropraxic damage as the cause. CONCLUSION: To avoid such problems, special attention should be paid to the correct positioning of the head during surgery or during rapidly performed tracheostomy if prolonged intubation is anticipated.
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Esther Uña (2009)  Atypical presentation of acute neurotoxicity secondary to oxaliplatin.   J Oncol Pharm Pract Dec  
Abstract: Neurotoxicity is the main and dose-limiting toxicity of oxaliplatin. It may produce two different syndromes, acute and chronic. We describe here a case of a patient with an acute syndrome with the particularity of affecting only contralateral hemibody to arm of infusion. A 62-year-old female diagnosed with stage IV colon cancer, underwent palliative treatment with combination of oxaliplatin (130 mg/m(2) on day 1), capecitabine (1.250 mg/m(2) bid on days 1 to 14 every 3 weeks), and bevacizumab. Thirty minutes after cycle 1 oxaliplatin infusion, which was into the left arm, she experienced right hemibody paresthesia with muscle cramping of her right calf. She associated dysphonia and painful jamming sensation in her right upper limb with difficulty to release grip. She noted also undulating movements under the skin of her right lower extremity. She was unable to stand or walk. She was given intravenous magnesium sulfate and calcium gluconate and after 3 h all her symptoms were solved. Subsequent doses were reduced by 25% and the infusions were prolonged to 3 h and the patient tolerated well except minimal paresthesia in her right hand lasting few minutes.
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Esther Uña (2009)  Gastric cancer: predictors of recurrence when lymph-node dissection is inadequate.   World J Surg Oncol 7: 09  
Abstract: BACKGROUND: The TNM classification (sixth edition) requires at least 15 lymph nodes to be examined to allow an accurate staging. However, in our environment, only 20% of patients have the recommended minimum of 15 nodes removed. PURPOSE: To evaluate clinicopathological predictors of recurrence in patients with gastric cancer undergoing radical resection with an inadequate number of lymph nodes examined. METHODS: 101 patients were included in this retrospective cohort. We evaluated age, gender, tumoral location, Borrmann type, Lauren histotype, type of gastrectomy, grade, invasion depth of tumor, lymph node involvement, ratio between metastatic and total number of excised lymph nodes keeping 20% as the cutoff value (LNR) and adjuvant treatment. The association between these variables and recurrence was investigated by using univariate methods and multivariate logistic regression analysis. RESULTS: Median (range) age was 63 years (44-85). 63% males, 37% females. Median follow-up time for the whole patients population was 36 months (10-104). Median number of lymph nodes retrieved was 6 (0-14). Recurrence: 50 of 101 cases (49,6%); 41 hematogeneus dissemination, 9 locoregional recurrences. The following factors were found to be correlated with the recurrence risk: tumoral location, invasion depth of tumor, lymph node involvement and LNR. A multivariate analysis revealed that depth of invasion [odds ratio (OR) 2.80, 95% confidence interval (CI) 1.03-7.58, P = 0.04] and LNR (OR 2.34, 95% CI 1.05-5.21, P = 0.03) were independent risk factors for recurrences of gastric cancer. Median time to recurrence: 16 months (2-50). 82% of recurrences occurred within the first two years after surgical treatment. The estimated cumulative risk of recurrence at five years: 61% in the whole patients population, with serosal invasion and LNR > and < 20% was 82% and 44%, without serosal invasion 73% and 39% respectively. CONCLUSION: Invasion depth of tumor and LNR were independent predictors of recurrence in gastric cancer after potentially curative resection with an inadequate number of lymph nodes examined.
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Esther Uña, Javier Trueba, Jose-Manuel Montes (2009)  Unexplained liver laceration after metastasis radiofrequency ablation.   World J Gastroenterol 15: 40. 5103-5105 Oct  
Abstract: Many studies have established the role of radiofrequency (RF) ablation as a minimally invasive treatment for liver metastases. Although relatively safe, several complications have been reported with the increased use of RF ablation. We describe here a case of unexplained liver laceration after a RF procedure. A woman who presented a solitary metachronous liver metastasis underwent RF ablation treatment for this lesion. Six hours later the patient displayed fatigue and pallor. Emergency blood tests showed a haemoglobin level of < 7 g/dL and markedly elevated transaminase levels. A computed tomography examination revealed two areas of liver laceration with haematoma, one of them following the path of the needle and the other leading away from the first. Following a blood transfusion, the patient was haemodynamically stable and completely recovered 24 h later. The patient remained in bed for 1 wk. No surgical intervention was required, and she was discharged 1 wk later.
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2008
2007
R Losa, J Fra, A López-Pousa, M Sierra, A Goitia, E Uña, R Nadal, J García Del Muro, M Gión, J Maurel, P Escudero, E Esteban, José M Buesa (2007)  Phase II study with the combination of gemcitabine and DTIC in patients with advanced soft tissue sarcomas.   Cancer Chemother Pharmacol 59: 2. 251-259 Feb  
Abstract: PURPOSE: Based on the promising results of a Phase I study with a combination of gemcitabine and DTIC performed in advanced soft tissue sarcoma (ASTS) patients, and due to the limited efficacy of second or third line therapies in those patients, we designed a Phase II study to determine the activity of this new regimen. METHODS: Patients with ASTS, measurable disease, pretreated with chemotherapy, received gemcitabine 1,800 mg/m2 infused over 180 min followed by DTIC 500 mg/m2 (one cycle), every 2 weeks. The pharmacokinetics (PK) of gemcitabine and 2',2'-difluorodeoxyuridine (dFdU), and the accumulation of gemcitabine triphosphate (dFdCTP) by peripheral blood mononuclear cells were studied. The influence of the sequence of administration on those parameters was examined to exclude potential drug interactions. RESULTS: Twenty-six patients received a total of 158 cycles (mean four cycles, range 1-18). Grade 3-4 anemia (23% of patients), granulocytopenia (46%) or thrombocytopenia (12%), and grade 3 increase in AST (18%), ALT (21%), or gamma-glutamyl-transferase (9%) were noted. Response rate in 23 patients was 4% (95% CI: 0-24%), and in 8 of 11 patients stable disease lasted > 6 months. Progression-free rate (PFR) at 3 and 6 months was, respectively, 48 and 28%, and median overall survival 37 weeks. Pooled data from the Phase I and Phase II studies showed clinical benefit in patients with leiomyosarcomas (LMS) (57%) and malignant fibrous histiocytomas (MFH) (33%). The sequence of administration did not influence PK of gemcitabine or dFdU. There was a trend (P = 0.11) toward a lower accumulation of dFdCTP when DTIC preceded gemcitabine. CONCLUSIONS: Although the remission rate was low, PFR figures indicate that this regimen has activity in patients with ASTS. It should be compared with DTIC, or other gemcitabine-containing combinations, in patients with LMS or MFH, to determine whether this combination offers advantages in PFR or in overall activity.
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2006
Emilio Esteban, Joaquin Fra, Yolanda Fernández, Norberto Corral, José M Vieitez, Isabel Palacio, José L de Sande, José L Fernández, Isabel Muñiz, Noemi Villanueva, Enrique Estrada, Beatriz Mareque, Esther Uña, José M Buesa, Angel J Lacave (2006)  Gemcitabine and vinorelbine (GV) versus cisplatin, gemcitabine and vinorelbine (CGV) as first-line treatment in advanced non small cell lung cancer: results of a prospective randomized phase II study.   Invest New Drugs 24: 3. 241-248 May  
Abstract: The objective of this study was to assess whether adding cisplatin to gemcitabine/vinorelbine combination improves the clinical outcome in patients with non-small-cell lung cancer (NSCLC). Chemotherapy-naïve patients with advanced NSCLC; age < or = 75 years: Karnofsky performance status > or = 60%, and with adequate hematological, renal and hepatic function, were randomized into 2 treatment groups to receive Gemcitabine 1250 mg/m2 + vinorelbine 30 mg/m2 (GV group), or cisplatin 50 mg/m2 + gemcitabine 1000 mg/m2 + vinorelbine 25 mg/m2 (CGV group). All drugs were administered on days 1 and 8 every three weeks: From September 1999 to March 2003, 114 patients were enrolled. No statistically significant difference was observed in GV vs CGV group in objective response (37 versus 47%, respectively; P = 0.5), median time to progression (5 versus 5.8 months; P = 0.6), overall survival (9 versus 10 months; P = 0.9) and 1-year survival (26 versus 28%; P = 0.9). Conversely, toxicities were significantly higher for CGV, including grade 3-4 neutropenia (24 versus 45%); neutropenic fever (4 versus 14%, including one toxic death); grade 3-4 thrombocytopenia (2 versus 14%); and grade 3-4 emesis (2 versus 14%). Our results suggest that the combination of gemcitabine and vinorelbine is less toxic than three-drug combination with cisplatin while showing similar efficacy.
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2005
Emilio Esteban-Gonzalez, Yolanda Fernández, Noemí Villanueva, Joaquin Fra, Isabel Muñiz, Isabel Palacio, Jose M Vieitez, Esther Uña, Beatriz Mareque, Angel J Lacave (2005)  Activity of carboplatin in patients with advanced non-small cell lung cancer pre-treated with a non-platinum combination.   Invest New Drugs 23: 6. 597-601 Dec  
Abstract: To assess the efficacy of carboplatin when used as a single agent in patients with advanced non small cell lung cancer (NSCLC) and who are refractory to chemotherapy with a non-platinum combination, we recruited patients (n=40) NSCLC patients, 36 of whom were males, with an overall median age of 59 years (range 39-79) and Karnofsky Performance Status of 70% (range 60-90%). At baseline, the patients had a median of one disease site (range 1-3) and had received a median of one prior regimen (range 1-2). Carboplatin was administered (i.v.; AUC=6) every 3 weeks until disease progression or non-acceptable toxicity was reached. In total 169 cycles were administered (median 4 cycles/patient; range 1-8). Main toxicities were grade 2-3 anemia and grade 4 thrombocytopenia (22.5% of patients). Overall clinical response rate was 10% (4 partial responses); 26 patients (65%) had stable disease and 8 (20%) had disease progression. Median time to progression and median survival time were 90 and 187 days, respectively. One year survival rate was 13%. We conclude that carboplatin shows minimal toxicity with a discrete anti-tumor activity in patients with NSCLC and who are refractory to non-platinum combinations.
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2004
2003
Rosa Sánchez, Emilio Esteban, Isabel Palacio, Yolanda Fernández, Isabel Muñiz, Jose M Vieitez, Joaquin Fra, Pilar Blay, Noemí Villanueva, Esther Uña, Beatriz Mareque, Enrique Estrada, Jose M Buesa, Angel J Lacave (2003)  Activity of weekly irinotecan (CPT-11) in patients with advanced non-small cell lung cancer pretreated with platinum and taxanes.   Invest New Drugs 21: 4. 459-463 Nov  
Abstract: Irinotecan (CPT-11), a semisynthetic derivative of camptothecin, is active in the treatment of non-small cell lung cancer (NSCLC). In this report we describe our experience with this drug when used as a single agent in patients with advanced NSCLC refractory to chemotherapy with platinum and taxanes. Nineteen NSCLC patients (thirteen males and six females; 53% adenocarcinoma and 26% squamous cell carcinoma) with a median age of 52 years (range 34-71) and a Karnofsky performance status of 60% (60-80%) were included in the study. At baseline, the patients had a median of two disease sites and had been treated with a median of two prior regimens. Irinotecan was given at a dose of 100 mg/m(2) i.v.) weekly for 4 weeks followed by 1 week of rest. A total of 123 weekly infusions were administered, and each patient received a median of 4 weeks of treatment (range 1-32). All patients were evaluated by intention-to-treat analysis for efficacy and safety. Main toxicities reported were grade 3 neutropenia (10% of patients), diarrhea (10% of patients), and grade 4 thrombocytopenia (5% of patients). The overall clinical response rate was 16% (95% CI: 8-24) with three partial responses and 9 (47%) patients with stable disease. The median time to progression and the median survival time were 7 and 15 weeks, respectively. In conclusion, weekly irinotecan showed antitumoral activity and minimum toxicity in NSCLC patients refractory to platinum and taxanes.
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2002
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