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עמוד בית
Sat, 20.04.24

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September 2021
Edwina Landau PhD, Huda Mussaffi MD, Vardit Kalamaro PharmD, Alexandra Quittner PhD, Tammy Taizi RN, Diana Kadosh MSW, Hadas Mantin MA, Dario Prais MD, Hannah Blau MBBS, and Meir Mei-Zahav MD

Background: Adherence to treatment by adolescents and adults with cystic fibrosis (CF) is often poor.

Objectives: To assess the impact of a focused clinical intervention on adherence in individual patients, including help in problem-solving key barriers to adherence. To implement a patient-centered problem-solving intervention using CF My Way tools. To identify and overcome a selected barrier to adherence.

Methods: Medication possession ratios (MPRs), number of airway clearance sessions, forced expiratory volume (FEV1), body mass index (BMI), and health-related quality of life (HRQoL) were measured before and after the intervention.

Results: Sixteen patients with CF, aged 23.4 ± 6.7 years, participated. MPR increased for colistimethate sodium and tobramycin inhalations from a median of 21 (range 0–100) to 56 (range 0–100), P = 0.04 and 20 (range 0–100) to 33.3 (range 25–100), P = 0.03, respectively. BMI standard deviation score rose from -0.37 to -0.21, P = 0.05. No significant improvements were found in FEV1, airway clearance, or HRQoL scores.

Conclusions: The CF My Way problem-solving intervention increased adherence to medical treatments by removing barriers directly related to the needs and goals of young adults with CF

April 2009
E. Bar-Yishay, E. Matyashchuk, H. Mussaffi, M. Mei-Zahav, D. Prais, S. Hananya, G. Steuer and H. Blau

Background: The forced oscillation technique is a non-invasive and effort-independent technique and is well suited for lung function measurement in young children. FOT[1] employs small-amplitude pressure oscillations superimposed on normal breathing. Therefore, it has the advantage over conventional lung function techniques in that it does not require patient cooperation for conducting respiratory maneuvers.

Objectives: To test the feasibility of the FOT test in preschool children and to compare the results to the commonly used spirometry before and after the administration of bronchodilator therapy.

Methods: Forty-six children (median age 4.9 years, range 1.8–18.3) attending the Pulmonary Clinic at Schneider Children's Medical Center tried to perform FOT and routine spirometry. Results were retrospectively analyzed. 

Results: Of the 46 children 40 succeeded in performing FOT and only 29 succeeded in performing simple spirometry. All but one of the 32 children aged 4 years and above (97%) could perform both tests. Nine of 14 children (64%) aged 4 and less could perform the FOT but only 3 (21%) could perform spirometry. Baseline values of respiratory resistance measured at 6 Hz (R6) negatively correlated with body length (r2 = 0.68, P < 0.005). Twenty-four children performed both tests before and after bronchodilator therapy. A significant concordance was found between the measured responses to bronchodilators by FOT and spirometry (P < 0.01). Only one child had a negative response by FOT but a positive response by spirometry.

Conclusions: The FOT is a simple, non-invasive technique that does not require subject cooperation and thus can be utilized for measuring lung function in children as young as 2 years of age. Furthermore, the FOT was shown to reliably measure response to bronchodilator therapy.






[1] FOT = forced oscillation technique



 
July 2003
H. Blau, M. Livne and H. Mussaffi

Background: Cystic fibrosis is no longer a terminal illness of childhood and mean survival is now over 30 years. Adult patients with atypical CF[1] are increasingly being diagnosed. In Israel, all patients are still followed in pediatric centers.

Objectives: To describe our experience with adult CF, stressing the importance of adult-related health and psychosocial issues.

Methods: Twenty-five CF patients aged 20–50 years, constituting 44% of the 57 patients followed at our center, were analyzed for pulmonary and extrapulmonary features and management.

Results: Nineteen were diagnosed as children and 6 as adults. Nineteen were pancreatic-insufficient and 6 were pancreatic-sufficient, including 5 diagnosed as adults. Pulmonary status was usually stable, with forced expiratory volume in 1 second 66.3 ± 21% (mean ± SD) and no difference between pancreatic-sufficient and insufficent patients. The latter had more hemoptysis, Pseudomonas infection, intestinal obstruction, liver disease and diabetes. Two patients died of malignancy and two of advanced lung disease. A majority received continuous inhaled and oral antibiotics, bronchodilators, Dnase, physiotherapy and periodic home intravenous antibiotics. Psychosocial functioning was excellent: 60% were employed, 36% were married and 40% had children (none with CF). Patients diagnosed as adults had mild multisystem disease or isolated severe lung disease.

Conclusions: CF adults generally have a good quality of life. Advances in understanding the CF defect and a plethora of new treatment modalities bode well for the future. Patients must be maintained in optimal condition to reap the benefits, and there is an urgent necessity for adult physicians to develop expertise in CF.

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[1] CF = cystic fibrosis

February 2000
Yitzhak Lotem MD, Asher Barak MD, Huda Mussaffi MD, Mordechai Shohat MD, Michael Wilschanski MD, Yakov Sivan MD and Hannah Blau MD

Background: Cystic fibrosis is the most common life-limiting autosomal recessive genetic disorder in Caucasians. Typically it is a multisystem disease diagnosed by increased chloride levels on sweat testing, with mortality due mainly to progressive respiratory disease. The clinical spectrum of CF has recently been much expanded.

Genetic testing for mutant CF transmembrane regulator has revealed atypical cases where sweat test results are borderline or normal. In other patients, genetic mutations cannot be identified but abnormal CFTR function is shown using nasal potential difference measurement.

Objectives: To highlight the diagnostic and therapeutic dilemmas in cases of atypical cystic fibrosis.

Methods: We reviewed patients with atypical CF and widely varying phenotype who are managed at Schneider Children’s Medical Center of Israel. 

Results: Two patients had severe lung disease but little expression in other organs. Accurate diagnosis was essential to enable aggressive therapy in a specialized center. Four other patients are in excellent general health but have symptoms limited to male infertility, heat exhaustion, pancreatitis or transient liver dysfunction, while lung disease is minimal. For these patients, careful counseling is needed to avoid unnecessary upheaval, inappropriately aggressive management, and the psychosocial implications of a CF diagnosis. These dilemmas have increased considerably in our center, as in others worldwide.

Conclusion: It is our obligation as clinicians - at the level of both primary physician and referral center - to maintain an ever higher index of suspicion for CF, tempered by a rational program of counseling and management appropriate to the individual.

 

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CF= cystic fibrosis

CFTR= CF transmembrane regulator

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