Application of quantitative PCR to the diagnosis and monitoring of Pseudomonas aeruginosa colonization in 5–18-year-old cystic fibrosis patients

2011 ◽  
Vol 60 (2) ◽  
pp. 157-161 ◽  
Author(s):  
Typhaine Billard-Pomares ◽  
Stéphanie Herwegh ◽  
Nathalie Wizla-Derambure ◽  
Dominique Turck ◽  
René Courcol ◽  
...  

Early detection of Pseudomonas aeruginosa and early aggressive treatment are recommended to delay chronic infection in cystic fibrosis (CF) patients. The aim of this study was to assess a quantitative PCR (q-PCR) assay for the diagnosis of early P. aeruginosa colonization in 23 young CF patients (group A, age range 7–18 years) and to survey the eradication of P. aeruginosa in 10 young CF patients (group B, age range 5–18 years) after an initial antibiotic treatment. q-PCR results for consecutive sputum samples from each patient during a period of 18 months were compared with bacterial cultures during the same period plus an additional period of 12 months, and with concomitant clinical signs of pulmonary exacerbation. The q-PCR and bacterial cultures were negative for 17 of the 23 patients in group A and six of the 10 patients in group B during the study period. However, consecutive positive q-PCR results were observed for one patient in group A and three patients in group B, while the bacterial cultures for the same sputum sample remained negative. They preceded positive P. aeruginosa bacterial cultures at 7 and 8 months for two patients in group B. These positive results were associated with a worsening of the clinical status of patients, but pulmonary exacerbation appeared non-specific for the diagnosis of early P. aeruginosa colonization since pulmonary exacerbations were observed in patients in whom q-PCR or bacterial culture remained negative. In conclusion, q-PCR may be a useful additional tool to provide information on the P. aeruginosa status of CF patients.

Thorax ◽  
2001 ◽  
Vol 56 (9) ◽  
pp. 669-674
Author(s):  
E Caballero ◽  
M-E Drobnic ◽  
M-T Pérez ◽  
J-M Manresa ◽  
A Ferrer ◽  
...  

BACKGROUNDPseudomonas aeruginosa is a frequent cause of infection in patients with bronchiectasis. Differentiation between non-infected patients and those with different degrees of P aeruginosainfection could influence the management and prognosis of these patients. The diagnostic usefulness of serum IgG antibodies againstP aeruginosa outer membrane proteins was determined in patients with bronchiectasis without cystic fibrosis.METHODSFifty six patients were classified according to sputum culture into three groups: group A (n=18) with no P aeruginosain any sample; group B (n=18) with P aeruginosa alternating with other microorganisms; and group C (n=20) with P aeruginosa in all sputum samples. Each patient had at least three sputum cultures in the 6 months prior to serum collection. Detection of antibodies was performed by Western blot and their presence against 20 protein bands (10–121 kd) was assessed.RESULTSAntibodies to more than four bands in total or to five individual bands (36, 26, 22, 20 or 18 kd) differentiated group B from group A, while antibodies to a total of more than eight bands or to 10 individual bands (104, 69, 63, 56, 50, 44, 30, 25, 22, 13 kd) differentiated group C from group B. When discordant results between the total number of bands and the frequency of P aeruginosa isolation were obtained, the follow up of patients suggested that the former, in most cases, predicted chronic P aeruginosacolonisation.CONCLUSIONIn patients with bronchiectasis the degree of P aeruginosa infection can be determined by the number and type of outer membrane protein bands indicating which serum antibodies are present.


2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Sameerah Mustafa ◽  
Asal Tawfeeq ◽  
Hadeel Hasan

This study involved the collection of (90) samples of women serum which included (30) serum samples collected from women before menopause (reproductive women) in the age range of (22-43) years and were considered as (group A- control). While, (group B) included (30) serum samples collected from women using oral contraceptive pills between the ages of (22-43) years old. Whereas, another (30) serum samples were collected from women after menopause between the ages of (43-54) years and were considered as (group C). All of the collected serum samples were subjected to a number of serological and chemical tests for the measurement of (E2, HDL, LDL and Ca). Then, the obtained data were statistical analyzed and results showed a significant decrease (p˂ 0.05) in (E2 ,Ca and HDL) levels in menopausal women compared to that of the normal healthy controls. While, there were non-significant decrease (p> 0.05) in (E2, Ca and HDL) levels in women taking oral contraceptive when compared to the normal healthy controls. On the other hand, a significant increase (p˂ 0.05) was recorded in LDL level in menopausal women compared to that of the normal healthy controls whereas, no-significant increase (p˃ 0.05) in the LDL level in women taking oral contraceptives when compared to the control women.


2004 ◽  
Vol 60 (2) ◽  
Author(s):  
S. M. Milne ◽  
C. J. Eales

The flutter is a simple hand held device designed to facilitate the mobilisation of excess bronchial secretions by means of oscillating positive pressure. Traditionally patients at the Johannesburg Hospital Cystic Fibrosis clinic used the active cycle of breathing technique as a means of facilitating secretion mobilisation and clearance. When the flutter became available in South Africa in 1999 many cystic fibrosis patients wanted to change to this technique. Minimal research has been conducted comparing these two techniques. The aim of this pilot study was therefore to determine which technique is more effective in the mobilisation of  secretions in cystic fibrosis patients. The pilot study was conducted on seven cystic fibrosis patients (mean age 28 years, range 16-42 years) admitted to the Johannesburg Hospital for antibiotic therapy. The study lasted four days and consisted of two treatment days  separated by a washout day on which no physiotherapy was performed. Patients randomised into Group A performed the flutter technique on day two and the active cycle of breathing technique on day four. Group B performed the active cycle of breathing technique on day two and the flutter on day four. The techniques were performed twice a day for  15 minutes. The measurements taken were daily 24-hour sputum samples and daily lung function tests. A questionnaire to determine patient preference to a technique concluded the study.  The results showed no statistical difference between the two techniques with regard to sputum weight or lung function (p<0.05). The questionnaire indicated that on a whole, patients had no preference for a technique.


2000 ◽  
Vol 86 (4) ◽  
pp. 304-306 ◽  
Author(s):  
Cinzia Motta ◽  
Gianluca Cartia ◽  
Alfredo Muni ◽  
Mauro Giudici ◽  
Giorgio Falcetto ◽  
...  

The aim of the study was to evaluate in our institute the technique of sentinel node (SN) identification and biopsy in the surgical treatment of early breast cancer. Between June 1998 and November 1999 54 patients (age range, 31–75 years) where studied. Inclusion criteria were age less than 75 years, indication for conservative surgery, absence of palpable axillary nodes, Karnofksy index >70. Lymphoscintigraphy was performed 16–18 hours prior to surgery, following injection of 0.1–0.2 mL of 99mTc-Nanocoll: the administered activity was 3–4 MBq in group A (44 pts) and 7–8 MBq in group B (10 pts). The colloids were administered by transdermal supralesional injection in 49 patients with palpable nodules and by intraparenchymal ultrasound-guided injection in five patients with non-palpable nodules. Planar projections were performed starting from the 5th until the 80th min (or 180th in the event of late migration). In 10 patients further projections were acquired 14–18 h following tracer administration. All nodes identified by gamma probe (MR 100 Pol. Hi. Tech) were histologically evaluated by immunohistochemistry and standard histology. Scintigraphic visualization of the SN was obtained in 49 patients: in 38 of these patients there was only one SN while in 11 patients there were two or three SNs. The delayed scan made in 10 patients did not show any further nodes. In all patients given US-guided perilesional injections migration was late (after at least 60 min). Our study confirms the validity of the scintigraphic procedure, its safety for patients and health care workers, and the feasibility of interdisciplinary collaboration.


2019 ◽  
Vol 37 (4) ◽  
pp. 435-441
Author(s):  
Amanda Oliva Gobato ◽  
Ana Carolina Junqueira Vasques ◽  
Antonio Fernando Ribeiro ◽  
Roberto Massao Yamada ◽  
Gabriel Hessel

ABSTRACT Objective: To determine the prevalence of hepatic steatosis (HS) in children and adolescents with cystic fibrosis (CF) and associate it with nutritional status. Methods: Cross-sectional study with children and adolescents with CF diagnosis. Weight and height were used to calculate the body mass index (BMI) and subsequent classification of the nutritional status. The midarm circumference (MAC), triceps skinfold thickness (TSF) and midarm muscle circumference (MAMC) were used to evaluate body composition. Abdominal ultrasonography was performed for diagnosis of HS. The statistical tests used were Student’s t test, Mann-Whitney test and chi-square test with significance level of 5%. Results: 50 patients with CF were evaluated, 18 (36%) were diagnosed with HS (Group A) and 32 (64%) without HS (Group B). The mean age of Group A was 13,2±4,9 years old and Group B 11,7±4,9; for BMI, the value for Group A was 18,0±4,1 and Group B was 15,7±3,8; the TSF of Group A was 8,4±3,5 mm and Group B was 7,0±2,5 mm. For these variables, there was no significant difference between the groups. The mean of MAC and MAMC differed significantly between the groups, being higher in the HS group, with p values of 0,047 and 0,043. Conclusions: The frequency of HS in patients with CF is high and it is not related to malnutrition, according to the parameters of BMI, TSF and MAMC. The values of MAC and MAMC indicated a greater reserve of muscle mass in patients with HS.


2013 ◽  
Vol 12 (6) ◽  
pp. 688-699 ◽  
Author(s):  
D.W. Reid ◽  
R. Latham ◽  
I.L. Lamont ◽  
M. Camara ◽  
L.F. Roddam

Author(s):  
Abhinav Srivastava ◽  
Sunil K. S. Bhadouriya ◽  
Omkar N. Sinha

<p class="abstract"><strong>Background:</strong> Atrophic rhinitis is very common in India. All etiological factors are yet unknown.  Many studies have been conducted to find the relationship between ABO blood group and various systemic diseases but limited number of studies has been conducted to determine the association of ABO blood group with atrophic rhinitis. The present study therefore was performed to see the association between atrophic rhinitis and ABO blood group.</p><p class="abstract"><strong>Methods:</strong> 100 patients of both genders clinically diagnosed with atrophic rhinitis were included in this study. Patients with nasal obstruction, nasal discharge and foul smelling from causes other than the atrophic rhinitis were excluded from the study.  </p><p class="abstract"><strong>Results:</strong> Maximum number of cases 27 (27%) were between 21-30 years of age. The most common presenting symptom in our study was foul smell from nose in 100 cases (100%). Foetors, crusts and roomy nasal cavity were seen in majority of cases. Commonest organism identified in this study was <em>Pseudomonas aeruginosa</em> 37% followed by <em>Klebsiella</em> (31%). Out of 100 patients, 42 patients belonged to group O, 40 patients belonged to group B, 14 patients belonged to group A and only 4 patients belonged to group AB. Control population with blood group B comprises the maximum number of cases followed by blood group O. Percentage of patients with blood group O is higher in atrophic rhinitis as compared with control and the percentage of patients with blood group B is slightly higher in atrophic rhinitis as compared with control.</p><p class="abstract"><strong>Conclusions:</strong> Our study concluded that no correlation exists between the ABO blood group and atrophic rhinitis.</p>


2021 ◽  
Vol 14 (3) ◽  
pp. 1375-1379
Author(s):  
Hisham W. Bader ◽  
Hala A. Youssef ◽  
Ayman F. Armaneous ◽  
Ashraf M. Azmy ◽  
Eman R. Youness ◽  
...  

Various treatment modalities have been used in primary Nocturnal Enuresis (PNE). Inhibition of prostaglandin synthesis may have value in the management of PNE. The effect of PGs on the urinary system are similar to those of Nitrous oxide (No), so there might be a link between No production and PNE. We can use nitrite as a good indicator of both PG and No because it is a stable metabolite of No. Our objective in this study was to assess urinary nitrite excretion in patients with enuresis and to evaluate the effect of indomethacin (a potent prostaglandin synthesis inhibitor) on urinary nitrite excretion. Sixty children participated in this study with age range 5-14 years and were divided into three groups: Group A comprised 20 children with PNE and were given 50 mg indomethacin suppositories each night for 1 month, group B comprised also 20 children with PNE not receiving treatment. Both groups were assessed by frequency of bed wetting episodes as well as by measuring urinary nitrites. In addition, 20 normal comparable controls were assessed as regards their urinary nitrites to show the difference in its values between enuretics and normal individuals. The results showed increase in nitric acid level in enuretic children than controls with marked decrease in its levels after receiving Indomethacin and marked improvement in the frequency of bed-wetting.


2021 ◽  
Vol 71 (Suppl-3) ◽  
pp. S598-602
Author(s):  
Muhammad Ahmed Khan ◽  
Faiz Ul Hassan Nawaz ◽  
Muhammad Tahir ◽  
Hina Mazhar ◽  
Muhammad Dawood ◽  
...  

Objective: To compare microdebrider-assisted turbinoplasty versus endoscopic partial turbinectomy in cases of inferior turbinate hypertrophy in allergic rhinitis patients in terms of relief/improvement of nasal obstruction, post operative bleeding, crusting and synechie formation. Study Design: Quasi experimental study. Place and Duration of Study: Combined Military Hospital Mardan and Combined Military Hospital Malir, from Jan 2019 to Jan 2020. Methodology: A total of 90 patients of allergic rhinitis with severe nasal obstruction due to bilateral inferior turbinate hypertrophy fulfilling the inclusion exclusion criteria were selected. Cases were randomly divided into two groups of 45 each. Group A cases underwent microdebrider assisted turbinoplasty and Group B cases underwent partial turbinectomy via endoscpic approach. They were comparedin terms of post op bleeding, relief of nasal obstruction, post op crusting & synechie/adhesions. All the data was entered on SPSS-17 and analyzed. Results: Out of 90 cases, there were 43 (47.8%) females and 47 (52.2%) males with age range from 15-65, mean age 37.68 ± 11.56 Years. There was only 1 case of post op bleeding after microdebrider assisted turbinoplasty requiring nasal packing in contrast to 6 cases of post op bleeding after endoscopic partial turbinectomy. On one month post op visit, there was no case of nasal crusting in turbinoplasty group in contrast to 7 of mild and 1 of moderate crusting & 3 synechie/adhesions in endoscopic partial turbinectomy group. Conclusion: Microdebrider-assisted turbinoplasty is associated with less post operative bleeding and synechie formation as compared to endoscopic turbinectomy.


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