Hydrogeochemical baseline in a human-altered landscape of the central Pacific coast of Costa Rica.

Groundwater pollution in tropical and human-altered coastal landscapes is receiving novel attention due to decreasing in annual recharge as a consequence of recurrent droughts and overexploitation, whereby saline intrusion, point and diffuse source contamination, and water conflicts are common denominators. This study presents a detailed groundwater evaluation in a coastal aquifer within the central Pacific coast of Costa Rica. Three sampling campaigns including major ions, heavy metals, and fecal coliform analyses were conducted between July 2013 and March 2014 across 17 wells within the alluvial and fissured units of the Jacó aquifer. The groundwater system is classified as mixed HCO3--Ca2+-Mg2+ type. Coliforms presence was found in two wells, nearby Mona Creek headwaters and near the coastal line. Heavy metal concentrations were below quantification limits in most of the wells; however, chromium concentrations up to 6.56 µg/L were quantified within the coastal line and central portion of the alluvial aquifer in 20 out of the 48 samples. The spatial distribution of major ions (K+, Na+, Ca2+, Mg2+, Cl-, SO42-, and HCO3-) exhibited an increasing trend towards the central portion of the alluvial aquifer, which may be potentially associated with the large unregulated urban expansion, invoking a need of a continuous water quality monitoring program in this touristic hot spot. This study provides useful information for other similar coastal aquifers in Central America, whereby increasing population growth and unregulated touristic, industrial, and agricultural activities are posing a truly challenge to ensure water security and sustainability parallel to the economic development in a changing climate.

[Supracricoid partial laryngectomy: quality of life assessment]. / Laringectomía parcial supracricoidea. Análisis de calidad de vida.

OBJECTIVES: To assess quality of life in patients diagnosed with epidermoid carcinoma of the larynx, after supracricoid partial laryngectomy (SCPL). To examine how quality-of-life may be associated to the treatment received. PATIENTS AND METHOD: A descriptive, observational, cross-sectional study was conducted involving 32 patients out of a group of 57. They were all males with an average age of 63.3 years at the time of the interview. We used the disease-specific quality of life questionnaire devised by the University of Michigan: the Head and Neck Cancer-specific Quality of life instrument (HNQOL). RESULTS: During an average follow-up period of 86 months, 3 patients (5.26%) suffered a recurrence. Estimated survival after 3, 5 and 10 years was 94.73%. Communication and overall bother caused by treatment were found to be the two quality-of-life domains mainly affected. Patients who had received CHP, radiotherapy, those who had not had their tracheal cannula removed or had undergone neck dissection were the most affected. CONCLUSIONS: SCPL as a surgical technique allows good control of the condition and has a low impact on the patient's quality of life.

[Assessment of quality of life in patients treated by supracricoid partial laryngectomy with cricohyoidoepiglottopexy (CHEP)]. / Calidad de vida en pacientes tratados mediante laringectomía parcial supracricoidea con cricohioidoepiglotopexia (CHEP).

OBJECTIVES: To assess quality of life in patients diagnosed with epidermoid carcinoma of the larynx, after supracricoid partial laryngectomy (SCPL) with cricohyoidoepiglottopexy (CHEP). To examine how quality-of-life may be associated to the treatment received: neck dissection, decannulation and radiotherapy. PATIENTS AND METHOD: A descriptive, observational, cross-sectional study was conducted involving 26 patients out of a group of 51. They were all males with an average age of 61.7 years at the time of the interview. We used the disease-specific quality of life questionnaire devised by the University of Michigan: the Head and Neck Cancer-specific Quality of life instrument (HNQOL). RESULTS: During an average follow-up period of 83.65 months, 2 patients (3.92%) suffered a recurrence. Estimated survival after 3, 5 and 10 years was 95.83%. Communication and overall disturbances caused by treatment were found to be the two quality-of-life domains mainly affected. Generally speaking, patients who had received radiotherapy, those who had not had their tracheal cannula removed or those that had undergone neck dissection were the most affected. CONCLUSIONS: SCPL with CHEP as a surgical technique allows good control of the condition and has a low impact on the patient's quality of life.