Influencia del tabaquismo en la resistencia bacteriana después de la profilaxis frente a infecciones urinarias recurrentes con antibiótico o con vacuna / The influence of smoking on bacterial resistance after vaccine or antibiotic prophylaxis against recurrent urinary tract infections

INTRODUCCIÓN: Se analiza la influencia del tabaco en el espectro microbiológico, patrón de resistencia-sensibilidad y evolución en pacientes con infección de orina de repetición (ITUR). Evaluación del efecto de vacuna bacteriana polivalente en la prevención de las ITUR y el estado como fumador. MATERIAL Y MÉTODOS: Estudio retrospectivo multicéntrico de 855 mujeres con ITUR tratadas con pauta antibiótica supresiva o vacuna bacteriana entre 2009 y 2013. Grupo A (GA): Antibiótico (n = 495); Subgrupos: GA1 no fumadora (n = 417), GA2 fumadora (n = 78). Grupo B (GB): Vacuna (n = 360); Subgrupos: GB1 no fumadora (n = 263), GB2 fumadora (n = 97). VARIABLES: edad, ITU pre-tratamiento, tiempo libre de enfermedad (TLE), especie microbiana, sensibilidad y resistencia. Seguimiento a 3, 6 y 12 meses con cultivo y cuestionario SF-36. RESULTADOS: Edad media 56,51 años (18-75), similar entre grupos (p = 0,2257). Sin diferencia en número de ITU pre-tratamiento (p = 0,1329) ni en distribución del espectro bacteriano (p = 0,7471). El TLE fue superior en los subgrupos B respecto a los correspondientes A. Urocultivos en GA1: E. coli 62,71% con el 8,10% resistencia (33% quinolonas; 33% cotrimoxazol; 33% quinolonas + cotrimoxazol); en GA2 E. coli 61,53% con 75% resistencia (16,66% quinolonas; 33,33% quinolonas + cotrimoxazol; 16,66% amoxicilina/ácido clavulánico; 16,66% eritromicina + fosfomicina + clindamicina) (p = 0,0133). En GA no hubo diferencias entre pacientes tratadas con cotrimoxazol y nitrofurantoina (p = 0,8724). Urocultivos en GB1: E. coli 47,36% con el 22,22% resistencias (5,55% ciprofloxacino; 5,55% cotrimoxazol; 5,55% ciprofloxacino + cotrimoxazol; 5,55% amoxicilina/ácido clavulánico). En GB2 E. coli 70,02% con el 61,90% resistencias (30,76% quinolonas; 30,76% cotrimoxazol; 30,76% quinolonas + cotrimoxazol; 17,69% amoxicilina/ácido clavulánico) (p = 0,0144). CONCLUSIONES: En mujeres con hábito tabáquico e ITUR es más frecuente la aparición de bacterias resistentes, lo cual podría influir en una peor respuesta a los tratamientos preventivos, ya sea antibióticos o vacuna

INTRODUCTION: The influence of tobacco on the microbiological spectrum, resistance-sensitivity pattern and evolution in patients with recurrent urinary tract infections (RUTI) is analyzed. Evaluation of the effect of polyvalent bacterial vaccine on the prevention of RUTI and smoking status. MATERIAL AND METHODS: Retrospective multicenter study of 855 women with RUTI receiving suppressive antibiotic treatment or bacterial vaccine between 2009 and 2013. Group A (GA): Antibiotic (n = 495); Subgroups: GA1 non-smoker (n = 417), GA2 smoker (n = 78). Group B (GB): Vaccine (n = 360); Subgroups: GB1 non-smoker (n = 263), GB2 smoker (n = 97). VARIABLES: Age, pre-treatment UTI, disease-free time (DFT), microbial species, sensitivity and resistance. Follow-up at 3, 6 and 12 months with culture and SF-36 questionnaire. RESULTS: Mean age 56.51 years (18-75), similar between groups (P = .2257). No difference in the number of pretreatment UTIs (P = .1329) or in the distribution of the bacterial spectrum (P = .7471). DFT was higher in subgroups B compared with A. Urine cultures in GA1: E. coli 62.71% with 8.10% resistance (33% quinolones; 33% cotrimoxazole; 33% quinolones + cotrimoxazole); in GA2 E. coli 61.53% with 75% resistance (16.66% quinolones; 33.33% quinolones + cotrimoxazole; 16.66% amoxicillin-clavulanate; 16.66% erythromycin + phosphomycin + clindamycin) (P = .0133). There were no differences between patients of GA treated with cotrimoxazole and nitrofurantoin (P = .8724). Urine cultures in GB1: E. coli 47.36% with 22.22% resistance (5.55% ciprofloxacin; 5.55% cotrimoxazole; 5.55% ciprofloxacin + cotrimoxazole; 5.55% amoxicillin/clavulanic acid). In GB2 E. coli 70.02% with 61.90% resistances (30.76% quinolones; 30.76% cotrimoxazole; 30.76% quinolones + cotrimoxazole; 17.69% amoxicillin-clavulanic acid) (P = .0144). CONCLUSIONS: The development of bacterial resistance is more frequent among women with smoking habits and recurrent urinary infections. This could influence a worse response to preventive treatments, either with antibiotics or vaccines

The influence of smoking on bacterial resistance after vaccine or antibiotic prophylaxis against recurrent urinary tract infections. / Influencia del tabaquismo en la resistencia bacteriana después de la profilaxis frente a infecciones urinarias recurrentes con antibiótico o con vacuna.

INTRODUCTION: The influence of tobacco on the microbiological spectrum, resistance-sensitivity pattern and evolution in patients with recurrent urinary tract infections (RUTI) is analyzed. Evaluation of the effect of polyvalent bacterial vaccine on the prevention of RUTI and smoking status. MATERIAL AND METHODS: Retrospective multicenter study of 855 women with RUTI receiving suppressive antibiotic treatment or bacterial vaccine between 2009 and 2013. Group A (GA): Antibiotic (n=495); Subgroups: GA1 non-smoker (n=417), GA2 smoker (n=78). Group B (GB): Vaccine (n=360); Subgroups: GB1 non-smoker (n=263), GB2 smoker (n=97). VARIABLES: Age, pre-treatment UTI, disease-free time (DFT), microbial species, sensitivity and resistance. Follow-up at 3, 6 and 12 months with culture and SF-36 questionnaire. RESULTS: Mean age 56.51 years (18-75), similar between groups (P=.2257). No difference in the number of pretreatment UTIs (P=.1329) or in the distribution of the bacterial spectrum (P=.7471). DFT was higher in subgroups B compared with A. Urine cultures in GA1: E. coli 62.71% with 8.10% resistance (33% quinolones; 33% cotrimoxazole; 33% quinolones + cotrimoxazole); in GA2 E. coli 61.53% with 75% resistance (16.66% quinolones; 33.33% quinolones + cotrimoxazole; 16.66% amoxicillin-clavulanate; 16.66% erythromycin + phosphomycin + clindamycin) (P=.0133). There were no differences between patients of GA treated with cotrimoxazole and nitrofurantoin (P=.8724). Urine cultures in GB1: E. coli 47.36% with 22.22% resistance (5.55% ciprofloxacin; 5.55% cotrimoxazole; 5.55% ciprofloxacin + cotrimoxazole; 5.55% amoxicillin/clavulanic acid). In GB2 E. coli 70.02% with 61.90% resistances (30.76% quinolones; 30.76% cotrimoxazole; 30.76% quinolones + cotrimoxazole; 17.69% amoxicillin-clavulanic acid) (P=.0144). CONCLUSIONS: The development of bacterial resistance is more frequent among women with smoking habits and recurrent urinary infections. This could influence a worse response to preventive treatments, either with antibiotics or vaccines.

Evaluation of a therapeutic vaccine for the prevention of recurrent urinary tract infections versus prophylactic treatment with antibiotics.

INTRODUCTION AND HYPOTHESIS: Urinary tract infections (UTIs) are considered the most common bacterial infections, especially in women. The objective of this study was to evaluate the use of the sublingual bacterial vaccine Uromune® in order to prevent recurrent UTIs (RUTIs). METHODS: This study was conceived as a multicenter observational study. The clinical history of 319 women who presented at least 2 episodes of UTI in the last 6 months or 3 in 12 months was reviewed. Data related to treatment and clinical evolution were recorded and analyzed. A total of 159 patients received prophylactic treatment with Uromune® for a period of 3 months (group A) and 160 with sulfamethoxazole/trimethoprim 200/40 mg/day for a period of 6 months (group B). Uromune® contained an inactivated bacterial cell suspension of selected strains of Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris, and Enterococcus faecalis. RESULTS: Patients in group A experienced a highly significant reduction in the number of infections compared to patients in group B. In the first 3 months, the mean number of infections was 0.36 versus 1.60 (P < 0.0001), respectively. A significant reduction was also observed after 9 and 15 months (P < 0.0001). The numbers of patients who did not have any UTI at 3, 9, and 15 months were 101, 90, and 55 in group A versus 9, 4, and 0 in group B (P < 0.0001). CONCLUSIONS: The results obtained in this study favor the use of this bacterial-based therapeutic vaccine as an effective strategy to reduce frequency, duration, severity, and costs of RUTIs.