Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Mafalda van Zeller is active.

Publication


Featured researches published by Mafalda van Zeller.


Journal of Cardiopulmonary Rehabilitation and Prevention | 2012

Pulmonary rehabilitation in patients with bronchiectasis: pulmonary function, arterial blood gases, and the 6-minute walk test.

Mafalda van Zeller; Patrícia Caetano Mota; Adelina Amorim; Paulo Viana; Paula Martins; Luís Gaspar; Venceslau Hespanhol; Isabel Gomes

BACKGROUND: Information regarding the effects of pulmonary rehabilitation (PR) on pulmonary function (PF), arterial blood gases (ABG), and 6-minute walk distance (6MWD) in patients with bronchiectasis is scant in the literature. METHODS: To evaluate the effects of PR on these indices in this population, a retrospective evaluation of those who attended PR from 2007 to 2010, was made. Pulmonary rehabilitation lasted a mean of 12 weeks and included cycle ergometer exercise for 30 minutes, 3 times per week, with additional upper limbs and quadriceps training. PF, ABG, and 6MWD were evaluated before and after PR to determine the potential influence of gender, exacerbations, underlying cause of bronchiectasis, severity of obstruction, and colonization with bacteria. RESULTS: Forty-one patients (48.8% males; median age, 54 years) were included; 25 had severe obstruction and 19 were colonized with bacteria. Following PR, no significant changes were detected in PF or ABG. Median 6MWD before PR was 425 m and post-PR was 450 m (P = .431). Outcomes did not show any interaction with gender, colonization, or exacerbations. However, patients with idiopathic bronchiectasis did show a significant improvement in forced vital capacity in percent of predicted and residual volume after PR (P = .016 and .048, respectively). Patients with severe obstruction showed a statistically significant decrease in percent of predicted residual volume (P = .025). CONCLUSION: There appears to be a beneficial impact of PR on PF in certain groups of patients with bronchiectasis. In addition, PR indications and protocols for patients with bronchiectasis may need to be adapted to accommodate specific patients, so that expressive exercise capacity improvement can be achieved.


Respiratory Medicine | 2013

5-years APAP adherence in OSA patients--do first impressions matter?

Mafalda van Zeller; Milton Severo; Ana Cristina Santos; Marta Drummond

BACKGROUND Although continuous positive airway pressure (CPAP) is effective in treating obstructive sleep apnoea (OSA), inadequate adherence remains a major cause of treatment failure. This study aimed to determine long term adherence to auto adjusting-CPAP (APAP) and its influencing factors including the role of initial compliance. METHODS Eighty-eight male patients with newly diagnosed moderate/severe OSA were included. After initiation of APAP treatment, patients had periodic follow-up appointments at 2 weeks, 6 months and then annually for at least 5 years. Patients compliance to therapy was assessed in each appointment and predictors to treatment abandonment and poor compliance were evaluated. RESULTS The studied population had a mean age of 53.8 years and mean apnoea-hypopnoea index of 52.71/h. The mean time of follow-up was 5.2 (± 1.6) years, during that time 22 (25%) patients abandoned APAP, those who maintained treatment had good compliance to it since 94% of them used it more than 4 h/day for at least 70% of days. A significant negative association was found between age, % of days and mean time of APAP use on 12th day and 6th month and the risk of abandoning. APAP use lower than 33% and 57% of days at 12th day and 6th month, respectively had high specificity (≈ 100%) to detect treatment abandonment. CONCLUSIONS the majority of patients adheres to long term APAP treatment and has good compliance after 5-years of follow-up. Age and initial compliance (% days of use and mean hour/day) have the ability to predict future adherence, as soon as 12 days and 6 months after initiation.


Breathe | 2018

Pneumology and sleep disordered breathing training in Portugal

Mafalda van Zeller; Marta Drummond

In Portugal, a medical degree takes 6 years, including a masters degree, ever since the Bologna Agreement of 2009. After this, and according to the Ordem dos Médicos (College of Physicians), one must complete 2 years of fully supervised clinical practice to be able to practice medicine. During this period, junior doctors rotate through several different medical and chirurgical specialties, after which and according to their grade on a national examination, they chose a specialty and location. Pneumology/respiratory medicine is one of the options and every year roughly 30 residents begin this 5-year specialty. Junior doctors usually choose where to perform their residency according to the subspecialties available in a particular hospital, their relationship with academia, opportunities for research projects and to go abroad, among other factors.


ERJ Open Research | 2017

Maintenance of Wakefulness Test in clinical practice

Leonor Meira; Mafalda van Zeller; Ermelinda Eusébio; Elizabete Santa Clara; Paulo Viana; Marta Drummond


European Respiratory Journal | 2012

Noninvasive ventilation during percutaneous endoscopic gastrostomy in amyotrophic lateral sclerosis patients with severe ventilatory impairment

Mafalda van Zeller; Rosa Ramalho; Susana Rodrigues; Miguel Gonçalves; João Carlos Winck; Guilherme Macedo


European Respiratory Journal | 2016

Noninvasive ventilation during percutaneous endoscopic gastrostomy in neuromuscular patients with severe ventilatory impairment

Eva Padrão; Mafalda van Zeller; Tiago Pinto; Rosa Ramalho; Anabela Marinho; Filipa Soares Pires; Guilherme Macedo; Miguel Gonçalves


Respiratory Care | 2014

Evaluation of Adherence to Ambulatory Liquid Oxygen Treatment: Are Commercialized Dual-Pressure Transducers Helpful?

Mafalda van Zeller; Ermelinda Eusébio; João Almeida; João Carlos Winck


European Respiratory Journal | 2013

Clinical use of the fatigue severity scale on obstructive sleep apnoea patients

Mafalda van Zeller; Marta Drummond; João Almeida; João Carlos Winck


European Respiratory Journal | 2013

Adherence to ambulatory liquid oxygen using comercialized dual pressure transducers

Mafalda van Zeller; Ermelinda Eusébio; José Benedito Oliveira Amorim; João Almeida; João Carlos Winck


European Respiratory Journal | 2013

Is dynamic hyperinflation a major concern in patients with pseudotumoral silicosis

Mafalda van Zeller; Manuel Vaz; Filipa Soares Pires; Paula Martins; Luís Gaspar; Paulo Viana; Isabel Gomes

Collaboration


Dive into the Mafalda van Zeller's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge