scholarly journals CAMP-disk test for presumptive identification of group B streptococci

1977 ◽  
Vol 6 (1) ◽  
pp. 42-45
Author(s):  
H W Wilkinson
Keyword(s):  
Agar Plate ◽  
Blood Agar Plate ◽  
Complete Agreement ◽  
Double Blind Study ◽  
Group B Streptococci ◽  
Double Blind ◽  
Sheep Blood Agar Plate ◽  
Camp Test ◽  
Group B ◽  
Disk Test

The modification of the CAMP test for goup B streptococci involved substituting a paper disk impregnated with partially purified beta-hemolysin for the staphylococcal culture that was the source of beta-hemolysin in the original test. The disk is placed onto a sheep blood agar plate beside the streak of Streptococcus being tested. The plate is then incubated aerobically at 35 degrees C. A positive reaction consists of a lunar-shaped clear zone that appears within 24 h in the dark beta-hemolysin zone surrounding the disk. A double-blind study of 135 randomly coded streptococcal isolates showed complete agreement between the CAMP-disk test and the standard Lancefield precipitin test. All group B streptococci tested had positive reactions, and all strains tested from streptococcal groups A, C, D, and G were negative. The CAMP-disk test is a simple and convenient way to identify presumptively group B streptococci.

Comparative Evaluation of 0.1% Octenidine Mouthwash with 0.2% Chlorhexidine Mouthwash in Prevention of Plaque and Gingivitis – A Clinicomicrobiological Study

2021 ◽  
Vol 13 (3) ◽  
pp. 202-210
Author(s):  
Sowmya Sadanandan ◽  
Suhas S ◽  
Sanjay Venugopal ◽  
Kavitha Karur
Keyword(s):  
Antibacterial Properties ◽  
Chlorhexidine Gluconate ◽  
Control Group ◽  
Double Blind Study ◽  
Gingival Inflammation ◽  
Patient Acceptability ◽  
Double Blind ◽  
Microbiological Parameters ◽  
Group B ◽  
The Impact

Background: Our study aimed to assess the efficacy of 0.1% Octenidine mouthwash as an anti-plaque agent and to assess its effect on gingival inflammation and staining of teeth when compared to 0.2% chlorhexidine gluconate by evaluating the impact on plaque and gingival inflammation as well as on microbial load. Materials and Methods: A three week double blind study was conducted on 69 subjects, aged 20-50 years, with moderate to severe gingivitis. The study population was divided into three groups with 23 subjects in each group: Group A - control subjects received only scaling, Group B received 0.2% chlorhexidine gluconate in addition to scaling and Group C received 0.1% Octenidine mouthwash along with scaling. Clinical and microbiological parameters were recorded at baseline, on 14th day and on 21st day. Subjective and objective criteria were assessed on the 14th day and 21st day. Results: There was a statistically significant reduction in all the tested parameters within all the three groups and between the groups from baseline to 21st day. The highest mean reduction in all the parameters was seen in subjects using 0.1% Octenidine. On comparison with the control group, subjects using the mouthwashes (Group B and Group C) had better improvement in clinical and microbiological parameters from baseline to 21st day. On comparison with chlorhexidine, Octenidine mouthwash significantly reduced plaque (p<0.05) and showed better patient acceptability. However, it was comparable to chlorhexidine in other two tested parameters. Conclusion: Owing to Octenidine’s pronounced and comparable antibacterial properties, it can be a promising candidate for the use in antiseptic mouthwashes.

scholarly journals Diagnostic Performance of Various Methodologies for Group B Streptococcus Screening in Pregnant Woman in China

2021 ◽  
Vol 11 ◽  
Author(s):  
Kankan Gao ◽  
Qiulian Deng ◽  
Lianfen Huang ◽  
Chien-Yi Chang ◽  
Huamin Zhong ◽  
...  
Keyword(s):  
Group B Streptococcus ◽  
Agar Plate ◽  
Reference Method ◽  
Antigen Detection ◽  
The Other ◽  
Blood Agar ◽  
Blood Agar Plate ◽  
Chromogenic Agar ◽  
Group B ◽  
Detection Reagent

Maternal vaginal/rectal colonization of group B streptococcus (GBS) is a main risk for neonatal invasive infection. Efficient determination of GBS colonization in pregnant women is crucial. This study aimed to investigate the prevalence of GBS carriage and evaluate the diagnostic performance of six methodologies for GBS screening conducted in China, including blood agar plate, liquid chromogenic medium, and loop-mediated isothermal amplification (LAMP) without pre-enrichment, chromogenic agar plate with pre-enrichment, and GBS antigen detection without and with pre-enrichment in comparison with the standard reference method (Lim broth-enriched subculture with plating on 5% sheep blood agar). Vaginal/rectal swabs were collected from 1,281 pregnant women at 35–37 weeks of gestation. Of them, 309 were taken in triplicate, one for Lim broth-enriched subculture, one for blood agar plate, and the third for GBS antigen detection (Reagent W); 177 were acquired in duplicate, one for Lim broth-enriched subculture and the other for GBS antigen detection (Reagent H); 502 were obtained in duplicate, one for Lim broth-enriched subculture and the other for liquid chromogenic medium; 158 were collected in duplicate, one for Lim broth-enriched subculture and the other for LAMP; and 135 were inoculated in Lim broth-enriched for GBS antigen detection (Reagent W) and subculture with chromogenic agar plate and 5% blood agar plate. The overall prevalence of GBS carriage was 10.1% (130/1,281, 95% CI: 8.5–12.1%) according to the standard reference method. Compared with the standard reference method, the LAMP had excellent performance of sensitivity (100%, 95%CI: 83.4–100%), specificity (94%, 95%CI: 88.1–97.1%), and Yoden index (0.940); as well as the blood agar plate with sensitivity (81.5%, 95%CI: 61.3–93.0%), specificity (100%, 95%CI: 98.3–100.0%), and Yoden index (0.815). The other four methods were not sufficient to reach the threshold in terms of sensitivity or specificity compared to the standard reference method. Furthermore, for LAMP, results can be obtained within 0.5–1 h, while for blood agar plate, which needed 24–48 h, and further identification was required. Our data suggested that the performance of LAMP was highly comparable to the standard Lim broth-enriched subculture and LAMP is considered as an alternative for fast and accurate GBS screening.

The role of tolvaptan in prevention of hyponatremia in patients undergoing transurethral resection of prostate surgery- A randomized double blind study

2021 ◽  
Vol 8 (2) ◽  
pp. 321-325
Author(s):  
Dinesh Kumar Singh ◽  
B B Baj ◽  
Vipin Goyal
Keyword(s):  
Transurethral Resection ◽  
Blind Study ◽  
Transurethral Resection Of Prostate ◽  
Double Blind Study ◽  
Double Blind ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B

The aim of our study to determine the role of tolvaptan in prevention of hyponatremia in transurethral resection of prostate surgery. This is randomized double-blind study conducted in 60 ASA grade status 1 and 2 patients age group between 45-80 yrs undergoing TURP under spinal anaesthesia in urology operation theatre in Mahatma Gandhi hospital Jaipur after receiving permission from hospital ethical committee. A detailed history, complete physical examination and routine investigation were done for all patients followed by informed written consent was obtained. Patients are randomly divided into 2 groups. In group A -30 patients who received orally tab tolvaptan 15 mg and group B-30 patients who received orally tab multivitamin 2 hrs before surgery after doing electrolytes of the patients in the morning. In both groups age (in yrs), wt (in kg), ASA grade, volume of irrigating fluid (in litres), volume of prostate resected (in gm) and duration of surgery (in minutes) all demographic and surgical details data were compared. Electrolytes were compared in both groups pre and post-operatively and statistical analysis was done.There was significant difference in post-operative sodium level between the two groups (A and B). The mean level of sodium significantly reduced post-operatively in group –B (control grp). The mean level of sodium significantly increased post-operatively in group –A (tolvaptan grp). We conclude single dose of tolvaptan -15 mg found to effective in prevention of hyponatremia in patients undergoing TURP.

Evaluation of spot CAMP test for identification of group B streptococci.

1986 ◽  
Vol 24 (2) ◽  
pp. 296-297 ◽  
Author(s):  
H B Ratner ◽  
L S Weeks ◽  
C W Stratton
Keyword(s):  
Group B Streptococci ◽  
Camp Test ◽  
Group B

scholarly journals Use of Warm Local Anaesthetic Solution for Caudal Blocks

1992 ◽  
Vol 20 (4) ◽  
pp. 453-455 ◽  
Author(s):  
E. T. M. Lim ◽  
K. Y. Chong ◽  
B. Singh ◽  
W. Jong
Keyword(s):  
Adverse Effects ◽  
Local Anaesthetic ◽  
Room Temperature ◽  
Double Blind Study ◽  
Double Blind ◽  
Anaesthetic Solution ◽  
Group A ◽  
Group B ◽  
Local Anaesthetic Solution ◽  
Speed Of Onset

A double-blind study was undertaken to investigate the effect of prewarmed local anaesthetic solution on the latency of onset of caudal blocks. Forty-four (ASA I-II) patients were allocated into two equal groups. In Group A, the local anaesthetic solutions were injected at room temperature (25°C), while in Group B, they were injected at 37°C. All the caudal blocks were performed using 20 ml of lignocaine 1.5% with adrenaline 1:200,000. The speed of onset of perianal analgesia was found to be significantly faster (39%) with the prewarmed local anaesthetic solution (P < 0.05). No adverse effects were observed.

scholarly journals EMLA Cream Prior to Insertion of Elective Epidurals

1995 ◽  
Vol 23 (3) ◽  
pp. 339-341 ◽  
Author(s):  
J. A. Elson ◽  
M. J. Paech
Keyword(s):  
Elective Caesarean Section ◽  
Needle Insertion ◽  
Patient Comfort ◽  
Epidural Needle ◽  
Double Blind Study ◽  
Double Blind ◽  
Emla Cream ◽  
Skin Infiltration ◽  
Group A ◽  
Group B

A randomized double-blind study was conducted in 83 women scheduled for elective caesarean section to determine the efficacy of EMLA and lignocaine infiltration for epidural insertion. The patients were randomly allocated to one of three groups: Group A (EM/LIG) received EMLA and intradermal and subdermal 1% lignocaine infiltration, Group B (EM/SAL) EMLA and saline while Group C (PL/LIG) received placebo cream and 1% lignocaine. Assessments using a 100 mm pain score were performed on skin infiltration and after subsequent insertion of a 16 gauge Tuohy needle into the supraspinous ligament. Skin changes under the applied cream and nursing rating of patients’ response were also noted. Statistical analyses were performed using Kruskal-Wallis and Fisher's Exact Tests. Groups were comparable for age, weight, parity and EMLA application time (interquartile range 105-150 minutes) There were significantly higher pain scores for skin infiltration in Group C (PL/LIG) (P<0.01) and for epidural needle insertion in Group B (EM/SAL) (P<0.05). We concluded that in this patient population, the application of EMLA cream for at least 90 minutes plus 1% lignocaine infiltration optimized patient comfort for epidural insertion.

scholarly journals A Double-Blind Randomized Prospective Study Comparing Ondansetron with Droperidol in the Prevention of Emesis following Strabismus Surgery

1995 ◽  
Vol 23 (4) ◽  
pp. 438-443 ◽  
Author(s):  
A. Davis ◽  
S. Krige ◽  
D. Moyes
Keyword(s):  
Recovery Time ◽  
Strabismus Surgery ◽  
Double Blind Study ◽  
Double Blind ◽  
Oral Fluids ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
To Receive ◽  
Mean Time

A prospective double-blind study was conducted to compare the anti-emetic efficacy of ondansetron and droperidol in preventing postoperative emesis following strabismus surgery. A sample size of 213 patients was divided into three equal groups to receive ondansetron 150 μg/kg (Group A), ondansetron 75 μg/kg (Group B), or droperidol 75 fig/kg (Group C). All patients received a standardized anaesthetic technique. All episodes of emesis, recovery time, and time to tolerating oral fluids were recorded. The incidence of emesis during 24 hours was Groups A and B 19.7%, and Group C 28.2%. The lower incidence of emesis recorded by the ondansetron groups compared with the droperidol group was not statistically significant. Ondansetron at 75 μg/kg was as effective as 150 μg/kg in reducing emesis when compared with droperidol. Mean time to discharge from the recovery room was 75.3 minutes (Group A), 44.4 minutes (Group B), and 41.0 minutes (Group C). The mean time to tolerating oral fluids was 356.5 minutes (Group A), 402.8 minutes (Group B), and 378.1 minutes (Group C). There was no statistical difference in discharge times from recovery or time to tolerating oral fluids in any of the three groups.

scholarly journals The Effect of Use of Anidulafungin on Failure of Weaning Due to Ventilator-associated Pneumonia which Complicate Contused Lungs

2018 ◽  
Vol 12 (1) ◽  
pp. 73-84
Author(s):  
Mohamed Gaber Ibrahium Mostafa Allam
Keyword(s):  
Broad Spectrum ◽  
Antifungal Drugs ◽  
Lung Contusion ◽  
Prolonged Treatment ◽  
Double Blind Study ◽  
Ventilator Associated Pneumonia ◽  
Double Blind ◽  
Broad Spectrum Antibiotics ◽  
Group A ◽  
Group B

Introduction:Failure of weaning is considered one of the most difficult challenges facing any intensivist especially in the devitalized lung due to infected lung contusion. Unsatisfactory results with prolonged treatment with the proper broad-spectrum antibiotics raise the point of exclusion of candidemia or suspected pulmonary candidiasis which is considered a major problem not only because of increasing rate (2-10 per 1000 ICU admission) but also because of difficult diagnosis. Patients with failure of weaning due to unresolved VAP after receiving broad-spectrum antibiotics for more than 10 days especially in preexisting severe lung contusion should be put on empirical systemic antifungal. Echinocandins are a new class of antifungal drugs used as a reliable class for empirical systemic antifungal treatment.Aim of Work:The study aims to evaluate and compare the effect of the use of anidulafungin on weaning from the ventilator due VAP which complicates traumatized contused lungs after 2 weeks from ventilation.Patients and Methods:This was a prospective double-blind study done on 200 patients admitted to King Abdulaziz Specialized Hospital, Taif, KSA between March 2015 and August 2018 in surgical ICU with the failure of weaning due to Ventilator Associated Pneumonia (VAP) complicate contused lungs. Group (A) 100 patients started on antibiotics regimen according to qualitative culture for 2 weeks while group (B) 100 patients received anidulafungin with the antibiotics regimen.In this study, diagnosis of lung contusion was made by Computerized Axial Tomography (CT) chest while both VAP was diagnosed by a modified Clinical Pulmonary Infection Score (CPIS). A score of 6 or more was considered VAP.Results:Comparing the data of the patients in the 3 studied periods (1st5 days, 2nd5 days and last 4 days) controlled tracheal secretion was recorded in 15, 38 and 46 patients in group A respectively in the 3 studied periods compared to 28, 75 and 83 in group B. Less parenchymatous lung infiltration in the chest X-ray found was in 12, 40 and 48 patients in group A compared to 24, 88 and 91 patients in group B. Improvement of the hypoxic index in 48, 76 and 85 patients in group A was compared to 66, 90 and 98 patients in B. Normalization of temperature in 16, 36 and 54 patients in group A while 40, 76 and 90 patients in B and reduction of total leucocytic count in 18, 35 and 57 patients in group A while 38, 70 and 87 patients in group B were observed. There were 15 out of 98 patients in Group A not weaned while only 5 out of 100 patients in group B failed to be weaned from mechanical ventilation within the study period (2 weeks).Conclusion:The use of anidulafungin with proper antibiotics in patients with failure of weaning due to VAP complicate contused lung efficiently treated VAP and reduced the morbidity by accelerating the weaning from the ventilator compared to the use of proper antibiotics alone.

Sign in / Sign up

Export Citation Format

Share Document