Recommendations for the prevention and diagnosis of asthma in children: Evidence from international guidelines adapted for Mexico

BACKGROUND: With the availability of high-quality asthma guidelines worldwide, one possible approach of developing a valid guideline, without re-working the evidence, already analysed by major guidelines, is the ADAPTE approach, as was used for the development of National Guidelines on asthma. METHODS: The guidelines development group (GDG) covered a broad range of experts from medical specialities, primary care physicians and methodologists. The core group of the GDG searched the literature for asthma guidelines 2005 onward, and analysed the 11 best guidelines with AGREE-II to select three mother guidelines. Key clinical questions were formulated covering each step of the asthma management. RESULTS: The selected mother guidelines are British Thoracic Society (BTS), GINA and GEMA 2015. Responses to the questions were formulated according to the evidence in the mother guidelines. Recommendations or suggestions were made for asthma treatment in Mexico by the core group, and adjusted during several rounds of a Delphi process, taking into account: 1. Evidence; 2. Safety; 3. Cost; 4. Patient preference - all these set against the background of the local reality. Here the detailed analysis of the evidence present in BTS/GINA/GEMA sections on prevention and diagnosis in paediatric asthma are presented for three age-groups: children with asthma ≤5 years, 6-11 years and ≥12 years. CONCLUSIONS: For the prevention and diagnosis sections, applying the AGREE-II method is useful to develop a scientifically-sustained document, adjusted to the local reality per country, as is the Mexican Guideline on Asthma

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Recommendations for the prevention and diagnosis of asthma in children: Evidence from international guidelines adapted for Mexico.

BACKGROUND: With the availability of high-quality asthma guidelines worldwide, one possible approach of developing a valid guideline, without re-working the evidence, already analysed by major guidelines, is the ADAPTE approach, as was used for the development of National Guidelines on asthma. METHODS: The guidelines development group (GDG) covered a broad range of experts from medical specialities, primary care physicians and methodologists. The core group of the GDG searched the literature for asthma guidelines 2005 onward, and analysed the 11 best guidelines with AGREE-II to select three mother guidelines. Key clinical questions were formulated covering each step of the asthma management. RESULTS: The selected mother guidelines are British Thoracic Society (BTS), GINA and GEMA 2015. Responses to the questions were formulated according to the evidence in the mother guidelines. Recommendations or suggestions were made for asthma treatment in Mexico by the core group, and adjusted during several rounds of a Delphi process, taking into account: 1. Evidence; 2. Safety; 3. Cost; 4. Patient preference - all these set against the background of the local reality. Here the detailed analysis of the evidence present in BTS/GINA/GEMA sections on prevention and diagnosis in paediatric asthma are presented for three age-groups: children with asthma ≤5 years, 6-11 years and ≥12 years. CONCLUSIONS: For the prevention and diagnosis sections, applying the AGREE-II method is useful to develop a scientifically-sustained document, adjusted to the local reality per country, as is the Mexican Guideline on Asthma.

[Assessment of activity of care of a nutritional support multidisciplinary team in the follow-up of total parenteral nutrition]. / Evaluación de la actividad asistencial de un equipo multidisciplinario de soporte nutricional en el seguimiento de la nutrición parenteral total.

INTRODUCTION: In total parenteral nutrition (TPN) nutritional support multidisciplinary teams (NSMT) must provide a high quality nutritional assistance based on evidence and daily follow-up of patients with TPN. OBJECTIVES: To assess the degree of adherence to quality standards of care provided to patients on TPN by the NSMT in two consecutive annual periods, according to structure, procedure, and outcomes indicators, previously defined in the team working protocol. PATIENTS AND METHODS: Prospective study of all patients that received TPN at our Center (421-bed general teaching hospital) during the years 2002 and 2003, using the data introduced in NUTRIDATA by daily follow-up of clinical and analytical conditions, and nutritional and non-nutritional complications, comparing both periods and considering an statistical significance level of p < 0.05. RESULTS: One hundred and sixty-three patients and 145 patients received TPN during 2002 and 2003(65.9% male), respectively, with similar parameters of gender, age, indications for TPN, baseline nutritional status, mean nutritional supply, and non-nutritional complications. As to the different quality indicators established in the comparative study, we found a significant improvement in 2003 vs. 2002 in relation to initial anthropometrical assessment (71.03% vs 51.53%; p < 0.001), initial biochemical assessment (97.93% vs. 92.63%; p < 0.04), performance of systematic monitoring analysis (84.83% vs. 71.78%; p < 0.01), hypernatremia incidence (8.27% vs. 15.34%; p = 0.05) and moderate hyperphosphatemia (26.89% vs. 40.49%; p < 0.02), TPN ending for clinical improve- ment (76.60% vs. 64.40%; p = 0.04), and reduction of days on TPN (15.74 +/- 20.43 vs. 11.88 +/- 8.34; p < 0.02), the impaired electrolyte levels significantly improving as a whole. We also observed a non-significant trend towards an improvement of adequacy of TPN indications, hyperphosphatemia, severe hypophosphatemia, total stay, and post-surgical stay, in 2003 vs. 2002. CONCLUSIONS: The NSMT experience shows that analysis of indicators based on quality standards, in two successive annual periods allows assessing the improvement of efficiency of nutritional intervention in hospital-admitted patients with TPN with regards to indication, assessment, follow-up, and course.

Management of cancer of the supraglottis.

We present the results of a retrospective study of 903 patients treated with conservation surgery for carcinoma of the supraglottic larynx so we can evaluate our management of supraglottic cancer with different types of surgery. In 301 patients, an extended supraglottic laryngectomy was performed. The recent selective use of transoral laser resection appears to be a rational approach. The 5-year uncorrected survival was 84%, 81%, 76%, and 55% for stages I, II, III, and IV, respectively. The most common site for local-regional failure was the cervical lymphatics. The percentage of occult disease in the NO neck was 21% and epilaryngeal supraglottic location, locally advanced and GIII tumors have a higher frequency of lymph node involvement. There were no differences between comprehensive and anterolateral elective neck dissections. A bilateral elective neck dissection is recommended. In histologically positive neck disease, the survival rates were better with postoperative radiotherapy only in cases of extracapsular spread.

The Gregorio Marañón Hospital experience with vertical partial laryngectomies.

We present a retrospective study of 551 patients treated with conservative surgery for glottic carcinoma at the Gregorio Marañón Hospital between 1962 and 1996. In all, 12% of cases were locally advanced carcinomas. In early-stage carcinomas there were no statistical differences in 5-year survival between those treated by endoscopic laser resection, vertical hemilaryngectomy and radiotherapy. However, tumor recurrence after primary radiotherapy was higher (27%) than with conservative surgery (12%), while the voice preservation rate was significantly higher with surgery (83%) than with radiotherapy (72%). With locally advanced cancer, irradiated patients (to 60 Gy) had a 50% probability of recurrence with a very low chance for salvage by total laryngectomy (5-year survival rate, 38.5%). In contrast, partial laryngectomy could be performed on carefully selected patients, and the results for these patients were comparable to those for smaller lesions (with a 5-year survival rate of 81%).

[L-carnitine levels in critical septic patients receiving parenteral nutrition]. / Niveles de L-carnitina en pacientes críticos sépticos con nutrición parenteral.

Septicemia causes multiple and often not very well understood metabolic alterations. In this sense it is controversial whether or not carnitine is decreased, which may have several implications. Our objective is to measure the plasma carnitine levels in septicemic patients, and to find out whether this is modified if there is a multi-organ dysfunction syndrome (MODS), or if it is dependent on the lipid source. For this we carried out a prospective study in septicemic patients with MODS. These were given exclusively parenteral nutrition (PN) without any carnitine supplementation. The PN of 16 patients contained long chain triglycerides (LCT's), while that of another 12 contained a 1:1 mixture of long and medium chain triglycerides (LCT's and MCT's). We measured the plasma carnitine level at the baseline, after 5 days and after 10 days, using an enzymatic method that measures the total carnitine level (free and esterified). The normal values lie between 35 and 70 mumol/l. We included 28 septicemic patients whose ages were 53.41 +/- 16.51 years, and whose APACHE II on admission was 17 +/- 4. The carnitine levels were: baseline: 60.4 +/- 23.7; 5th day 57.7 +/- 22.9; 10th day 55.7 +/- 21.2 (p = n.s.). Of these patients, 10 had an MODS of septic origins with their baseline levels being: 65.3 +/- 30.9; 5th day 60.3 +/- 23.2; 10th day 61.5 +/- 15.5; while the levels of the 18 septicemic patients without MODS, the baseline levels were 61.9 +/- 13.8; 5th day 58.6 +/- 19.1; 10th day 56.6 +/- 19.3 (p = n.s.). In the patients who were given LCT's the baseline carnitine level was 60.7 +/- 23.1, 5th day 60.1 +/- 23.8; 10th day 58.6 +/- 12.8; while those patients who were given LCT/MCT showed baseline levels of 64.3 +/- 19.5; 5th day 58.6 +/- 19.1; 10th day 57.8 +/- 10.7 (p = n.s.). In our septicemic patients the serum carnitine levels we found were within the normal range, and these remained unchanged during the ten days in those patients with MODS or with the lipid mixture used.

[Granulocytic sarcoma. A case with an unusual location]. / Sarcoma granulocítico. Un caso de localización inusual.

An unusual case of granulocytic sarcoma infiltrating the parotid gland of a 17-year-old woman is reported. There was no evidence of acute myeloid leukemia or chronic myeloproliferative disease at time of diagnosis. The myeloid nature of the tumor was discovered with the aid of immunochemistry. The patient responded well to combined polychemotherapy and local radiotherapy. Eighteen months after diagnosis, the bone-marrow biopsy showed no signs of blast infiltration. Granulocytic sarcoma should be considered in the differential diagnosis of malignant tumors of the parotid gland, although it is rare.

[A study of neoadjuvant chemotherapy in the treatment of cancer of pyriform sinuses]. / Papel de la quimioterapia neoadjuvante en el tratamiento del carcinoma de seno piriforme.

We present a retrospective study of 49 cases of squamous cell carcinoma of the pyriform sinus treated with induction chemotherapy (group I) and compared with 103 cases that did not received this treatment (group II). Thirty four patients were treated with combined cis-platinum and 5-fluoracil. Local and regional control and distant metastasis were analyzed, and no differences between the two groups were found. Five-year global actuarial survival rates were 23% in group I, and 35% in group II (p = no significant). In group I, those cases that responded to chemotherapy had a better 4-year survival rate (33%) than those who did not (7%) (p < 0.1). When patients who underwent radical radiotherapy were analyzed, a better 5-year survival rate was found in group I (41%) versus group II (13%) (p < 0.05).

[Results of radiotherapy in 117 cases of carcinoma of pyriform sinuses]. / Resultados del tratamiento radioterápico en 117 casos de carcinoma de seno piriforme.

A retrospective study was made of 117 cases of squamous cell carcinoma of the pyriform sinus treated with radiation therapy (RTX). Sixty-three patients underwent radical RTX (group I) and 54 patients received combined treatment (group II). Adjuvant chemotherapy (QTX) was applied in 36 patients (27 of group I, 9 of group II). Residual disease after treatment was observed in 35% (group I) and 4% (group II) (p < 0.001). The rates of local and/or regional recurrence were 46% and 38% respectively. Distant metastases were found in 6% (group I) and 20% (group II) (p < 0.05). The 5-year actuarial survival rates were 23% (group I) and 35% (group II). The group I patients who received QTX had better survival rates (41%) than those who did not (13%) (p < 0.05). The group II survival was not improved by QTX.

[Sarcoma of the larynx]. / Sarcoma de laringe.

The soft-tissue sarcomas are rarely encountered in the larynx. A case the undifferentiated soft-tissue sarcoma of the larynx is presented, analyzing, the clinical features, the diagnosis and incidence into the laryngeal carcinoma. The prognosis and therapeutic measures are also discussed.

[Rhinocerebral mucormycosis. Apropos of a case]. / Mucormicosis rinocerebral. A propósito de un caso.

We present a 43-year-old patient with a history of immunodepression secondary to a renal transplant, chronic herpetic hepatitis and steroid diabetes, who showed sudden symptomatology suggestive of rhinocerebral mucormycosis, which was confirmed through cultures of the material obtained after a Caldwell-Luc operation of the affected sinus. Once the diagnosis was confirmed, a radical left superior maxillectomy was performed and medical treatment with progressive doses of amphotericin B was given. The patient improved markedly and left the hospital four months later.