1
|
Kalantar-Zadeh K, Susic D, Hyett J. Vaginal Sensors. ACS Sens 2024; 9:3810-3827. [PMID: 39024191 DOI: 10.1021/acssensors.4c00567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The development and market emergence of vaginal sensors have begun to demonstrate their impact on women's healthcare. Until recently, in limited cases, these sensors have exhibited their capabilities in diagnosing and monitoring disorders of the vaginal tract during different stages of women's lives. This Perspective is a compilation of what has been accomplished so far in the landscape of vaginal sensors. The text explores the diverse types of vaginal sensor technologies, their applications, and their potential impact on women's healthcare. The review introduces the anatomy of the vagina and cervix and categorizes vaginal sensors that have been developed, highlighting the technologies and potential applications. The paper covers biomarkers of the vaginal tract and discusses their importance in maintaining the overall characteristics of the vaginal system. The text also explores the clinical implications of vaginal sensors in pregnancy monitoring, disease detection, and sexual health management. In the final step, the manuscript provides future perspectives and possibilities that can be incorporated in the emerging field of vaginal sensors.
Collapse
Affiliation(s)
- Kourosh Kalantar-Zadeh
- School of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, NSW 2008, Australia
| | - Daniella Susic
- School of Clinical Medicine, Discipline of Women's Health, University of New South Wales, Sydney, NSW 2052, Australia
- Department of Obstetrics and Gynaecology, Liverpool Hospital, Liverpool, NSW 2170, Australia
| | - Jon Hyett
- Department of Obstetrics and Gynaecology, Royal Prince Alfred Hospital, The University of Sydney, Camperdown, NSW 2050, Australia
| |
Collapse
|
2
|
Powell A, Goje O, Nyirjesy P. A Comparison of Newer and Traditional Approaches to Diagnosing Vaginal Infections. Obstet Gynecol 2024; 143:491-498. [PMID: 38350107 DOI: 10.1097/aog.0000000000005529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/04/2024] [Indexed: 02/15/2024]
Abstract
Molecular diagnostic testing (eg, polymerase chain reaction [PCR]-based vaginitis testing) is widely used in clinical practice, although vaginitis experts have reservations about its use for vaginitis diagnosis. As with any new technology, cost to the health system is a large concern. Although clinical evaluation of signs and symptoms along with wet mount microscopy is traditionally used for vaginitis diagnosis, it is less accurate compared with molecular diagnostic testing. Here we review the benefits of adopting newer molecular diagnostics into routine gynecologic practice with some guidance from vaginitis experts that favor both traditional and more modern approaches. We argue that instead of trying to resist the oncoming tide of molecular diagnostics, we can embrace them and put them to appropriate use to effect rapid, accurate, and more flexible diagnosis of vaginitis conditions for our patients.
Collapse
Affiliation(s)
- Anna Powell
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland; the Obstetrics and Gynecology Institute, Cleveland Clinic Foundation, Cleveland, Ohio; and the Department of Obstetrics and Gynecology, Sidney Kimmel Medical College, Thomas Jefferson University School of Medicine, Philadelphia, Pennsylvania
| | | | | |
Collapse
|
3
|
Eckel F, Farr A, Deinsberger J, Kernmayer-Farr K, Foessleitner P. Dequalinium Chloride for the Treatment of Vulvovaginal Infections: A Systematic Review and Meta-Analysis. J Low Genit Tract Dis 2024; 28:76-83. [PMID: 38117564 DOI: 10.1097/lgt.0000000000000790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
OBJECTIVE/PURPOSE Women at reproductive age frequently experience vulvovaginal infections and vaginitis. The most common etiologies are vulvovaginal candidiasis (VVC), bacterial vaginosis (BV), desquamative inflammatory vaginitis/aerobic vaginitis, and trichomoniasis. Various treatment options are available for these infections, such as specific antimicrobial or antiseptic agents. Dequalinium chloride (DQC) is a local antiseptic agent with a broad antimicrobial and antifungal spectrum. Multiple studies suggest that DQC is an efficient treatment for vaginal infections; however, it is not widely recommended as a first-line treatment. This systematic review and meta-analysis aims to evaluate the efficacy of DQC compared with that of standard treatment. METHODS Our systematic review was conducted according to the PRISMA guidelines. PubMed/MEDLINE, EMBASE, CENTRAL, and clinicaltrials.org were searched to retrieve relevant reports up to October 2022. RESULTS Four randomized controlled studies and 1 observational study were included in this review. Overall, DQC showed noninferiority to the reference treatments for BV and VVC, and to the evaluated treatment options for desquamative inflammatory vaginitis/aerobic vaginitis. For BV and VVC, this could also be confirmed in a meta-analysis including 3 randomized controlled studies. No serious adverse events were reported in any of these studies. CONCLUSIONS Dequalinium chloride offers a safe, well-tolerated, and efficient treatment option for vulvovaginal infections of different etiologies. However, further studies are needed to confirm our findings and allow inclusion of DQC as a first-line treatment into guidelines.
Collapse
Affiliation(s)
- Fanny Eckel
- Division of Obstetrics and Feto-Maternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Alex Farr
- Division of Obstetrics and Feto-Maternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Julia Deinsberger
- Skin and Endothelium Research Division (SERD), Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Karin Kernmayer-Farr
- Division of Obstetrics and Feto-Maternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Philipp Foessleitner
- Division of Obstetrics and Feto-Maternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
4
|
Lietz A, Eckel F, Kiss H, Noe-Letschnig M, Farr A. Quality of life in women with chronic recurrent vulvovaginal candidosis: A sub-analysis of the prospective multicentre phase IIb/III Prof-001 study. Mycoses 2023; 66:767-773. [PMID: 37147720 DOI: 10.1111/myc.13602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
BACKGROUND Chronic recurrent vulvovaginal candidosis (RVVC), defined as three or more episodes of vulvovaginal candidosis per year, significantly impairs quality of life (QoL) and sexual health. OBJECTIVES The primary objective of this study was to assess health-related QoL in women with RVVC using validated questionnaires before and after treatment. The secondary objective was to analyse the effect of RVVC on women's sexual health. PATIENTS/METHODS This was a sub-analysis of a randomised, controlled, double-blinded study titled 'A phase IIb/III, parallel-arm, randomized, active-controlled, double-blind, double-dummy, multicenter, non-inferiority study in patients with recurrent vulvovaginal candidosis to compare the clinical efficacy, safety and tolerability of topically administered ProF-001 (Candiplus®) to oral fluconazole, which was conducted at 35 study sites in Austria, Poland and Slovakia. QoL was assessed using the European Quality of Life (EQ) five-dimension five-level scale (EQ-5D-5L) and visual analogue scale (EQ-VAS) questionnaires, followed by specific questions regarding sexuality. RESULTS From 2019 to 2021, 360 of 432 (83.3%) women with RVVC had accomplished a 6-months maintenance treatment and were enrolled in this sub-analysis. The EQ-5D-5L and EQ-VAS scores demonstrated improved QoL in 137 (65.2%) and 159 (75.4%) women after 6 months of maintenance treatment. Each individual aspect of sexual health significantly improved (all p < .05). A reduction in pain frequency during or after sexual intercourse in the 6-month period occurred in 124 (66.3%) women. CONCLUSIONS Women with RVVC had high QoL and sexual health impairment; however, a 6-months maintenance treatment resulted in effective improvement in QoL and sexual health.
Collapse
Affiliation(s)
- Andrea Lietz
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Pediatric Intensive Care and Neuropediatrics, Comprehensive Center for Pediatrics, Medical University Vienna, Vienna, Austria
| | - Fanny Eckel
- Department of Obstetrics and Gynecology, Division of Obstetrics and Feto-maternal Medicine, Medical University of Vienna, Vienna, Austria
| | - Herbert Kiss
- Department of Obstetrics and Gynecology, Division of Obstetrics and Feto-maternal Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Alex Farr
- Department of Obstetrics and Gynecology, Division of Obstetrics and Feto-maternal Medicine, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
5
|
Brown H, Drexler M. Improving the Diagnosis of Vulvovaginitis: Perspectives to Align Practice, Guidelines, and Awareness. Popul Health Manag 2020; 23:S3-S12. [PMID: 32997581 PMCID: PMC7591372 DOI: 10.1089/pop.2020.0265] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Vulvovaginitis is a frequent reason for women to see a health care provider and has been linked to adverse reproductive and psychosocial consequences. Accurate diagnosis is a cornerstone of effective treatment, yet misdiagnosis of this condition approaches 50%, raising the risk of recurrence. The past 3 decades have seen few improvements over the traditional means of diagnosing the 3 main causes of vaginitis: bacterial vaginosis, Candida infections, and trichomoniasis. Newer molecular tests, which are both more sensitive and specific, have introduced the potential to transform the diagnosis of vaginitis—ensuring more accurate diagnoses and timely interventions, while reducing health care costs and enhancing patients' quality of life. Clinical approaches and professional guidelines should be updated to reflect advances in molecular testing and improve the diagnosis and management of acute and recurrent vulvovaginitis.
Collapse
Affiliation(s)
- Haywood Brown
- Professor Obstetrics Gynecology, University South Florida, Tampa, Florida, USA
| | - Madeline Drexler
- Harvard Public Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| |
Collapse
|
6
|
Schwebke JR, Taylor SN, Ackerman R, Schlaberg R, Quigley NB, Gaydos CA, Chavoustie SE, Nyirjesy P, Remillard CV, Estes P, McKinney B, Getman DK, Clark C. Clinical Validation of the Aptima Bacterial Vaginosis and Aptima Candida/Trichomonas Vaginitis Assays: Results from a Prospective Multicenter Clinical Study. J Clin Microbiol 2020; 58:e01643-19. [PMID: 31748322 PMCID: PMC6989072 DOI: 10.1128/jcm.01643-19] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/06/2019] [Indexed: 11/20/2022] Open
Abstract
Infectious vaginitis due to bacterial vaginosis (BV), vulvovaginal candidiasis (VVC), and Trichomonas vaginalis accounts for a significant proportion of all gynecologic visits in the United States. A prospective multicenter clinical study was conducted to validate the performance of two new in vitro diagnostic transcription-mediated amplification nucleic acid amplification tests (NAATs) for diagnosis of BV, VVC, and trichomoniasis. Patient- and clinician-collected vaginal-swab samples obtained from women with symptoms of vaginitis were tested with the Aptima BV and Aptima Candida/Trichomonas vaginitis (CV/TV) assays. The results were compared to Nugent (plus Amsel for intermediate Nugent) scores for BV, Candida cultures and DNA sequencing for VVC, and a composite of NAAT and culture for T. vaginalis The prevalences of infection were similar for clinician- and patient-collected samples: 49% for BV, 29% for VVC due to the Candida species group, 4% for VVC due to Candida glabrata, and 10% for T. vaginalis Sensitivity and specificity estimates for the investigational tests in clinician-collected samples were 95.0% and 89.6%, respectively, for BV; 91.7% and 94.9% for the Candida species group; 84.7% and 99.1% for C. glabrata; and 96.5% and 95.1% for T. vaginalis Sensitivities and specificities were similar in patient-collected samples. In a secondary analysis, clinicians' diagnoses, in-clinic assessments, and investigational-assay results were compared to gold standard reference methods. Overall, the investigational assays had higher sensitivity and specificity than clinicians' diagnoses and in-clinic assessments, indicating that the investigational assays were more predictive of infection than traditional diagnostic methods. These results provide clinical-efficacy evidence for two in vitro diagnostic NAATs that can detect the main causes of vaginitis.
Collapse
Affiliation(s)
- Jane R Schwebke
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Stephanie N Taylor
- Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Ronald Ackerman
- Comprehensive Clinical Trials, West Palm Beach, Florida, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Machado RM, Tomás M, Palmeira-de-Oliveira A, Martinez-de-Oliveira J, Palmeira-de-Oliveira R. The vaginal sheet: an innovative form of vaginal film for the treatment of vaginal infections. Drug Dev Ind Pharm 2020; 46:135-145. [PMID: 31893929 DOI: 10.1080/03639045.2019.1711386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective: To develop and characterize a new form of vaginal film.Significance: This formulation is intended to overcome some known limitations of traditional dosage forms. It has an absorptive intention to control symptoms and to improve the treatment of vaginal infections characterized by excessive fluid. The vaginal sheet is a thick drug delivery system easy to manipulate, nontoxic and composed by biocompatible macromolecules and polymers, such as gelatin and chitosan.Methods: The sheets were prepared by formulating gelatin or chitosan based gels isolated or in combination, in association with a plasticizer. Gels were subsequently lyophilized. Different proportions of polymer:plasticizer were tested. Lactose was used as a surrogate to study powder incorporation in the formulation. All formulations were analyzed regarding their organoleptic characteristics, texture (hardness and resilience), in vitro absorption efficiency of vaginal fluid simulant - VFS (pH 4 and 5), pH and acid-buffering capacity.Results: Different properties were obtained by varying polymer and plasticizer proportions. Combinations including gelatin with propylene glycol showed the best organoleptic characteristics. The best proportions were 4:3 and 4:5. Up to 10% of powder was successfully incorporated in the formulation. Hardness and resilience of formulations were largely dependent on the concentration of plasticizer. Absorption of vaginal fluid was found to be highly efficient, especially at pH 5. Buffering capacity, upon dilution in normal saline and VFS, was generally higher for VFS pH 4.Conclusions: The vaginal sheet is a promising solid drug delivery system able to further incorporate drugs to treat vaginal clinical conditions characterized by excessive fluid.
Collapse
Affiliation(s)
- Rita Monteiro Machado
- CICS, UBI - Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.,Labfit, HPRD - Health Products Research and Development Lda, Covilhã, Portugal
| | - Mariana Tomás
- CICS, UBI - Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Ana Palmeira-de-Oliveira
- CICS, UBI - Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.,Labfit, HPRD - Health Products Research and Development Lda, Covilhã, Portugal
| | - José Martinez-de-Oliveira
- CICS, UBI - Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Rita Palmeira-de-Oliveira
- CICS, UBI - Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.,Labfit, HPRD - Health Products Research and Development Lda, Covilhã, Portugal.,Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| |
Collapse
|
8
|
Ackerman SJ, Knight T, Wahl PM, Cartwright CP. Health care utilization and costs following amplified versus non-amplified molecular probe testing for symptomatic patients with suspected vulvovaginitis: a US commercial payer population. CLINICOECONOMICS AND OUTCOMES RESEARCH 2019; 11:179-189. [PMID: 30863131 PMCID: PMC6388970 DOI: 10.2147/ceor.s191831] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Vulvovaginitis (VV) is a common reason women seek medical attention in the USA. Both the non-specific clinical presentation and risk of preterm labor or delivery necessitate accurate identification of the causative agents to guide appropriate therapy. The diagnostic accuracy of amplified molecular probe testing (AMP) has been shown to exceed that of non-amplified molecular probe (NAMP) by 20%–25%. Objective To evaluate the impact of diagnosis with AMP testing on health care utilization, direct costs, and health outcomes, compared with NAMP, for symptomatic patients with suspected VV from a commercial payer perspective. Methods Symptomatic women (aged 18–64 years) who underwent VV testing with AMP or NAMP from January 1, 2012–December 31, 2016 were identified using the Truven Health Analytics MarketScan Database; those with continuous medical and pharmacy benefit enrollment 6 months pre/post AMP or NAMP testing were included. Patients were propensity score (PS) matched and 6-month all-cause health care resource utilization, all-cause direct costs (2017 USD), risk of all-cause hospitalization, and risk of preterm labor or delivery were compared between cohorts. Results After PS match (N=46,810 per group, mean age 34.2 years), AMP had significantly (all P<0.0001) fewer mean hospital outpatient visits (AMP 0.9 vs NAMP 1.0), primary care physician office visits (AMP 1.1 vs NAMP 1.2), and prescription medications (AMP 7.3 vs NAMP 8.0), and a 21% reduction in risk of hospitalization (risk ratio [RR]=0.79, 95% CI= 0.75–0.83, P<0.0001). Total medical expenditures per patient were lower for AMP than NAMP (mean AMP $3,287 vs NAMP $3,555, P<0.0001). Among pregnant women (N=2,175 per group), AMP had a 12% reduction in risk of preterm labor or delivery (RR =0.88, 95% CI=0.77–0.99, P=0.041). Conclusion This real-world study offers evidence on the clinical utility for symptomatic patients with suspected VV diagnosed with AMP compared to NAMP – demonstrating an opportunity to improve the patient journey while delivering value-based care.
Collapse
Affiliation(s)
| | - Tyler Knight
- Covance Market Access Services Inc., Gaithersburg, MD, USA
| | - Peter M Wahl
- Covance Market Access Services Inc., Gaithersburg, MD, USA
| | - Charles P Cartwright
- Center for Esoteric Testing, Laboratory Corporation of America Holdings, Burlington, NC, USA
| |
Collapse
|
9
|
Chitosan-Based Nanomedicine to Fight Genital Candida Infections: Chitosomes. Mar Drugs 2017; 15:md15030064. [PMID: 28273850 PMCID: PMC5367021 DOI: 10.3390/md15030064] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 02/25/2017] [Accepted: 03/01/2017] [Indexed: 12/21/2022] Open
Abstract
Vaginal infections are associated with high recurrence, which is often due to a lack of efficient treatment of complex vaginal infections comprised of several types of pathogens, especially fungi and bacteria. Chitosan, a mucoadhesive polymer with known antifungal effect, could offer a great improvement in vaginal therapy; the chitosan-based nanosystem could both provide antifungal effects and simultaneously deliver antibacterial drugs. We prepared chitosan-containing liposomes, chitosomes, where chitosan is both embedded in liposomes and surface-available as a coating layer. For antimicrobial activity, we entrapped metronidazole as a model drug. To prove that mucoadhesivness alone is not sufficient for successful delivery, we used Carbopol-containing liposomes as a control. All vesicles were characterized for their size, zeta potential, entrapment efficiency, and in vitro drug release. Chitosan-containing liposomes were able to assure the prolonged release of metronidazole. Their antifungal activity was evaluated in a C. albicans model; chitosan-containing liposomes exhibited a potent ability to inhibit the growth of C. albicans. The presence of chitosan was crucial for the system’s antifungal activity. The antifungal efficacy of chitosomes combined with antibacterial potential of the entrapped metronidazole could offer improved efficacy in the treatment of mixed/complex vaginal infections.
Collapse
|
10
|
Byun SW, Park YJ, Hur SY. Affirm VPIII microbial identification test can be used to detect gardnerella vaginalis, Candida albicans and trichomonas vaginalis microbial infections in Korean women. J Obstet Gynaecol Res 2016; 42:422-6. [PMID: 26787446 DOI: 10.1111/jog.12913] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/15/2015] [Accepted: 10/28/2015] [Indexed: 11/28/2022]
Abstract
AIM The aim of this study was to compare Affirm VPIII Microbial Identification Test results for Korean women to those obtained for Gardnerella vaginalis through Nugent score, Candida albicans based on vaginal culture and Trichomonas vaginalis based on wet smear diagnostic standards. METHODS Study participants included 195 women with symptomatic or asymptomatic vulvovaginitis under hospital obstetric or gynecologic care. A definite diagnosis was made based on Nugent score for Gardnerella, vaginal culture for Candida and wet prep for Trichomonas vaginalis. Affirm VPIII Microbial Identification Test results were then compared to diagnostic standard results. RESULTS Of the 195 participants, 152 were symptomatic, while 43 were asymptomatic. Final diagnosis revealed 68 (37.87%) cases of Gardnerella, 29 (14.87%) cases of Candida, one (0.51%) case of Trichomonas, and 10 (5.10%) cases of mixed infections. The detection rates achieved by each detection method (Affirm assay vs diagnostic standard) for Gardnerella and Candida were not significantly different (33.33% vs 34.8% for Gardnerella, 13.33% vs 14.87% for Candida, respectively). The sensitivity and specificity of the Affirm test for Gardnerella compared to the diagnostic standard were 75.0% and 88.98%, respectively. For Candida, the sensitivity and specificity of the Affirm test compared to the diagnostic standard were 82.76% and 98.80%, respectively. The number of Trichomonas cases was too small (1 case) to be statistically analyzed. CONCLUSIONS The Affirm test is a quick tool that can help physicians diagnose and treat patients with infectious vaginitis at the point of care.
Collapse
Affiliation(s)
- Seung Won Byun
- Department of Obstetrics and Gynecology, The Catholic University of Korea, Seoul, South Korea
| | - Yeon Joon Park
- Department of Laboratory Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Soo Young Hur
- Department of Obstetrics and Gynecology, The Catholic University of Korea, Seoul, South Korea
| |
Collapse
|
11
|
Comparison of nucleic acid amplification assays with BD affirm VPIII for diagnosis of vaginitis in symptomatic women. J Clin Microbiol 2013; 51:3694-9. [PMID: 23985917 DOI: 10.1128/jcm.01537-13] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A commercially available, nonamplified, nucleic acid probe-based test system (BD Affirm VPIII) was compared with nucleic acid amplification (NAA)-based assays for determining the etiology of vaginitis in a cohort of 323 symptomatic women. First, a semiquantitative, multiplexed PCR assay (BV-PCR) and the Affirm VPIII Gardnerellavaginalis test were compared with a unified bacterial-vaginosis (BV) reference standard incorporating both Nugent Gram stain scores and Amsel clinical criteria. In the evaluable population of 305 patients, BV-PCR was 96.9% (191/197) sensitive and 92.6% specific (100/108) for BV, while Affirm VPIII was 90.1% sensitive (179/197) and 67.6% specific (73/108). Second, a multiplexed PCR assay detecting Candida albicans and Candida glabrata (CAN-PCR) was compared with the Affirm VPIII Candida test using a reference standard for vulvovaginal candidiasis (VVC) of yeast culture plus exclusion of alternate vaginitis etiologies. In the population evaluated (n = 102), CAN-PCR was 97.7% sensitive (42/43) and 93.2% specific (55/59) and Affirm VP III was 58.1% sensitive (25/43) and 100% specific (59/59) for VVC. Finally, the results of a commercial NAA test (GenProbe Aptima Trichomonas vaginalis assay; ATV) for T. vaginalis were compared with the Affirm VPIII Trichomonas vaginalis test. In the absence of an independent reference standard for trichomonal vaginitis (TV), a positive result in either assay was deemed to represent true infection. In the evaluable cohort of 388 patients, the sensitivity of ATV was 98.1% (53/54) versus 46.3% (25/54) for Affirm VPIII. The diagnostic accuracy of the combined NAA-based test construct was approximately 20 to 25% higher than that of the Affirm VPIII when modeled in populations with various prevalences of infectious vaginitis.
Collapse
|
12
|
Machado RM, Palmeira-de-Oliveira A, Martinez-De-Oliveira J, Palmeira-de-Oliveira R. Vaginal films for drug delivery. J Pharm Sci 2013; 102:2069-81. [PMID: 23649325 DOI: 10.1002/jps.23577] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/09/2013] [Accepted: 04/12/2013] [Indexed: 11/10/2022]
Abstract
Vaginal dosage forms have been studied in relation to many drugs as the vagina presents several advantages as a site for drug delivery, such as large surface area, rich blood supply, avoidance of the first-pass effect, relatively high permeability to several drugs, and self-insertion. Traditional vaginal dosage forms have been associated with disadvantages such as low residence time and discomfort and have been surpassed by newly designed drug delivery systems, particularly those based on bioadhesive polymers. Vaginal films are solid dosage forms that rapidly dissolve in contact with vaginal fluids and are unlikely to be associated with leakage and messiness. They have been studied for some female genital problems, aiming either contraceptive, antimicrobial, or microbicide effects. Precise and complex processes of manufacturing and characterization are required to achieve successful film formulation. Although scarce, the available user's acceptability studies show promising results. Vaginal films gather a lack of opportunities for both therapeutic and prophylactic actions, and therefore should be considered when designing and developing new vaginal drug delivery systems.
Collapse
Affiliation(s)
- Rita M Machado
- CICS-UBI, Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã 6200-506, Portugal
| | | | | | | |
Collapse
|
13
|
Borhart J, Birnbaumer DM. Emergency department management of sexually transmitted infections. Emerg Med Clin North Am 2011; 29:587-603. [PMID: 21782076 DOI: 10.1016/j.emc.2011.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Patients seeking treatment for sexually transmitted infections (STIs) account for a large number of emergency department (ED) visits per year. Despite the large volume of patients, STIs are often missed or treated inappropriately. Due to the high prevalence and incidence of STIs in the United States, it is important that emergency practitioners recognize symptoms consistent with STIs, and treat presumptively. This practice leads to overtreatment of STIs; however, when weighed against the public health risk and complications of untreated disease, empiric treatment is recommended. This article provides an overview of STIs encountered in the ED and recommendations for their treatment.
Collapse
Affiliation(s)
- Joelle Borhart
- Department of Emergency Medicine, Georgetown University/Washington Hospital Center, Washington, DC 20010, USA.
| | | |
Collapse
|
14
|
|