This was a instance control survey, which was conducted at the Mahatma Gandhi Medical College and Research Institute Hospital, Puducherry, a rural Tertiary attention infirmary with an one-year volume of above 1,00,000 patients over one twelvemonth period.
The Institutional Medical Ethics Committee approved this survey. From January 2011 until April 2012 we enrolled patients between the ages of 14 and 86 old ages of age.
100 diabetes mellitus patients and 50 healthy not diabetic controls without any urinary ailments viz dysuria, frequence, urgency, strangury, tenesimus, nocturia, nocturnal urinary incontinence, prostatism, incontinency, urethral hurting, vesica hurting, nephritic gripes, prostate hurting, and who attended Mahatma Gandhi Medical College between August 2010 to July 2012 were enrolled for this survey. These patients did non hold any old vesica catheterisation, instrumentality of urogenital piece of land or old urogenital surgery.
WHO criteria was applied to name diabetes mellitus.
WHO criteria for naming diabetes mellitus.
Methods and standards for naming diabetes mellitus
1. Diabetess symptoms ( ie polyuria, polydipsia and unexplained weight loss ) plus
a random venous plasma glucose concentration & A ; gt ; 11.1 mmol/l
a fasting plasma glucose concentration & A ; gt ; 7.0 mmol/l ( whole blood & A ; gt ; 6.1mmol/l )
two hr plasma glucose concentration & A ; gt ; 11.1 mmol/l two hours after 75g anhydrous glucose in an unwritten glucose tolerance trial ( OGTT ) .
2. without symptoms diagnosing of DM should non be based on a individual glucose trial but requires collateral plasma venous finding. At least two glucose trials result on a another twenty-four hours with a value within the diabetic scope is indispensable. It can be either fasting, random sample or the two hr station glucose trial. If the fasting glucose or random glucose values are non diagnostic of DM so the two hr value should be used.
During initial visit relevant facts were elicited from patients sing history, age, continuance of diabetes, absence of urinary symptoms. H/O old catheterisation, instrumentality and surgery of urogenital piece of land. With respect to female patients, their catamenial history, H/O white discharge. H/O pruritus vulva were elicited.
Then elaborate scrutiny of patients carried out peculiarly with respect to complications of diabetes. In male patients, per rectal scrutiny was carried out to govern out prostate expansion routinely. In female patients elaborate gynecological scrutiny carried out to govern out any gynecological jobs, cystocele etc.
After these preliminary scrutinies, patients non suiting into choice standards were omitted, and 100 diabetes mellitus patients, and 50 non diabetic control were proceeded to following phase of survey.
During subsequent visits, patients and command group random blood sugar degrees, blood carbamide, serum creatinine trials were done. On the same twenty-four hours patients urine samples were collected for civilization and microscopic scrutiny. In female patients urine civilization sample were collected during their non-menstural periods.
METHODS OF URINE SPECIMEN COLLECTION
Clean gimmick mid watercourse urine aggregation method was adopted.
Patients were explained about the methods of roll uping clean gimmick midstream piss and aged female patients were provided with nursing helpers for cleaning the external genital organ.
Urine was collected in a unfertile wide-mouthed prison guard cap bottle for civilization intent and microscopic scrutiny. Two back-to-back urine specimens were obtained, and refrigerated instantly, because it was non possible to plate all the samples of urine instantly.
One civilization of a clean-voide specimen of midstream piss from an person without symptoms of a UTI with at least 105 cfu/ml of the same individual bacterial species was considered equal to name ASB [ 30 ] .
The ground to civilization a 2nd clip is to know apart between true bacteriuria and taint. In most surveies, merely the positive civilizations are repeated to name [ 30 ] .
Quantitative CULTURE OF URINE
Urine was cultured quantitatively by graduated cringle technique. The civilization home bases were read at the terminal of 24 hours and no. of settlements counted in positive civilizations. If there was no growing the civilization home bases were reincubated for another 24 hours and figure of settlements calculated if growing was noted.
ANTIBIOTIC SENSITIVITY TESTS
These were done utilizing the standard sums of ( nitrofurantoin, tetracycline, aminoglycosides, co-trimaxazole,3rd coevals Mefoxins, fluroquinolones, ? lactams and nalidixic acid in all civilization positive instances ) and study obtained at the terminal of 48 hours.
It was non possible to gauge HbA1C in all the patients in our set-up.
Written informed consent was obtained from the patients and controls.
We excluded all patients who had factors favoring exclusion standards and included patients who satisfied inclusion standards.
All information was entered into a Data Collection Proforma Sheet ( Appendix 1 ) and were entered into Excel ( MS Excel 2011 ) . The Sheet had a ocular map for taging and divided into indicants for both genders. Other biographical inside informations were besides collected including day of the month of birth, weight and tallness.
Statistical analysis was carried out utilizing SPSS version 19.0 ( IBM SPSS, US ) package with Regression Modules installed.
Statistical methods such as odds ratio and chisquare trials were applied to happen the significance between different variables.
42 [ a ] 3 [ B ] negative
58 [ degree Celsiuss ] 47 [ vitamin D ] Oddss ratio:
Diabetic patients have 11.34 times the hazard to develop symptomless bacteruria than a non diabetic person.
X2 = ? ( o-e ) 2 vitamin E
df = 1
X2 = 20.564
In this survey an effort was made to find the incidence of symptomless bacteriuria in diabetes mellitus patients with comparing to non diabetic control group, common organisms doing infection and their antibiotic sensitiveness.
On reexamining the literature the undermentioned surveies conducted in similar mode to the present survey noted.
Prevalence Rate %
3.5 Fold addition
3 fold rise
Equal to non diabetic male
Very few surveies of this type were carried out in our state.
As noted above, most of surveies were conducted merely in female type II diabetes patients. Prevalence of symptomless bacteriuria in female diabetes patients varies from 7.9 % to 32 % . Relatively in the present survey the incidence of asymtomatic bacteriuria in female Type II patients is 35.38 % .
Merely few surveies were conducted in male Type II patients. Most of the surveies showed the prevalence of symptomless bacteriuria as equal to non-diabetic work forces. But in the present survey incidence of symptomless bacteriuria in male Type II is 20 % compared to 0 % incidence in non-diabetic control. A survey conducted in Type II patients of both sexes showed the prevalence of symptomless bacteriuria as 9.3 % . In the present survey the incidence of symptomless bacteriuria in Type II patients is 26.66 % ( Male 20 % ; Female 40 % ) .
In the present survey incidence of symptomless bacteriuria in both female and male diabetic patients are high when compared with non diabetic control group ( 36 % and 20 % and 0 % )
Both Type II ( insulin ) and Type II ( OHA ) patients are every bit affected ( 26.66 % and 28.33 % ) .
Percentage of male patients with diabetes mellitus on insulin with
positive civilization – 20.00 %
Percentage of male patients with diabetes mellitus on OHA with
positive civilization – 20.00 %
Percentage of female patients with diabetes mellitus on insulin
with positive civilization – 40.00 %
Percentage of male patients with diabetes mellitus on OHA
with positive civilization – 35.00 %
Percentage of patients with diabetes mellitus on insulin
with positive civilization – 26.66 % .
Percentage of patients with diabetes mellitus on
OHA with positive civilization – 28.00 %
Percentage of male patients with positive civilization – 20.00 %
Percentage of female patients with positive civilization – 36.00 %
In control group no. of male patient with positive civilization – 0
In control group no. of female patient with positive civilization – 3
Percentage – 12.00 %
Many surveies have found that the commonest being doing symptomless bacteriuria is E. coli 40 % , and gram negative B made up 66.7 % of the isolates. Relatively in the present survey, the common being is E.coli ( 57.14 % ) . Other beings isolated include Klebsiella ( 33.33 % ) Enterococci ( 4.76 % ) , Proteus ( 2.38 % ) , acinetobacter ( 2.38 % ) .
Bacteriuria appears to hold no relation to increasing age. In the present survey symptomless bacteriuria occurred in all age groups. About 55 % of civilization positive causes are in the age group of 41-60 old ages.
Bacteruria is common among aged life in non- instituitional community scenes, particularly among adult females, although non every bit common as among the aged in institutional scenes [ 16 ] .
The feeling that true bacteruria in the diabetic is chiefly confined to aged diabetic adult females. Furthermore, the prevalence of bacteriuria among them was significantly greater than that of aged non diabetic females [ 22 ] .
Contaminated piss is defined as the presence of at least 3 different micro-organisms in 1 urine specimen. [ 4 ] The prevalence of ASB is increased in adult females with diabetes [ 26 % vs 6 % ] and might be added to the list of diabetic complications in adult females [ 4 ] .
Longer the continuance of diabetes with the presence of complications apparently increases the hazard of ASB in type 1 diabetic adult females [ 4 ] .
The rate of ASB is non influenced by quality of diabetic control [ glycosylated hemoglobin, fasting glucose degree ] or nephritic map [ 40 ] .
Longer continuance of diabetes, but non glucose control, is associated with bacteriuria prevalence. A statistically important longer diabetes continuance was found for diabetic topics with bacteriuria than without. Prevalence of bacteriuria additions 1.9 – crease times in every 10 old ages continuance of diabetes. However, there was no association between long – term glucose control, as reflected by glycosylated hemoglobin degree, and bacteriuria prevalence [ 34 ] .
Asymptomatic bacteriuria is common, particularly in functionally impaired aged patients with multiple medical morbidities. If symptoms or marks of infections are absent testing with everyday dipstick and subsequent antimicrobic intervention is neither recommended. Early acknowledgment and direction of assorted hazard factors of ASB is really of import to potentially cut down its happening [ 6 ] .
Sing all results there is no benefit of testing for and intervention of bacteriuria [ 7 ] .
It is hard to turn out that ASB is more frequent among adult females with diabetes than among those without diabetes [ 8,12 ] .
Prevalence of ASB is about three times higher in patients with diabetes when compared with the control subjects [ 11 ] .
Prevalence of bacteriuria was 4.4 times higher among diabetic than non diabetic topics [ 23 ] .
The prevalence of ASB among patients with diabetes is higher than in an seemingly healthy group [ 24 ] .
The prevalence of bacteriuria in diabetic adult females is 7 % to 13 % , approximately three times higher than not diabetic adult females [ 28 ] .
ASB is improbable to be a effect of hapless control of diabetes [ 11 ] .
Damage of metabolic control of diabetes as revealed by an addition in HbA1c degree increases the hazard of developing ASB [ 8 ] .
Duration of diabetes, high HbA1c degree, glucosuria and pyuria are risk factors for ASB in patients with type 2 diabetes. E.coli and K.pneumoniae are the most often stray bacteriums in diabetes patients with ASB. Routine urine civilization might be recommended in diabetic patients who show no urinary symptoms but who have one or more of the hazard factors mentioned [ 42 ] .
The prevalence of ASB and leukocyturia ( & A ; gt ; 5 cells / high power field ) was higher in kids and immature grownups with diabetes than those of control topics and the spectrum of bacteriums in ASB was different from the usual spectrum of UTI. There was a inclination in the diminution in nephritic map in type 1 diabetic adult females who had ASB [ 44 ] .
Asymptomatic urinary infection can non with certainty be correlated with increasing continuance of diabetes. The prevalence rate of symptomless bacteriuria increased with longer continuance of diabetes. In the present survey 30 % of positive civilization instances had diabetes for 1-3yrs continuance. Another 24 % instances had diabetes for 5 to 10 year. continuance. Even 33.33 % of freshly detected diabetes patients had positive urine civilization. Any patient with diabetes can hold symptomless bacteriuria irrespective of their continuance of disease.
The prevalence of symptomless bacteriuria is non affected by steps of glucose control. In the present survey 40 % civilization positive instances had random blood sugar value in the scope of 201 to 250 milligram % . Another 24 % had in the scope of 151 to 200 % . 15 % patients had in the scope of 251 to 300 % . The determination that quality of diabetic control does non impact the prevalence of symptomless bacteriuria is confirmed.
The prevalence of symptomless bacteriuria additions as diabetic retinopathy becomes more terrible [ 33 ] , 2 instances of diabetic retinopathy are civilization positive in the present survey.
Of the 6 patients with diabetic nephropathy 4 instances are civilization positive. A instances of diabetic pes in present survey non had any urinary piece of land infection. Of the 4 instances with ischaemic bosom disease, 2 instances are civilization positive.
Certain surveies found that isolates were ill sensitive to on a regular basis available antibiotics – Achromycins ( 33 % sensitive ) , cotrimaxazole ( 33 % sensitive ) . Other disinfectants with over 80 % sensitiveness degree included aminoglycosides, nitrofurantoin, 3rd coevals cepholosporins and fluroquinolones.
All the beings that are grown in civilization in the present survey are immune to normally used antibiotics like Achromycins, cotrimaxazole, and nalidixic acid. Almost all isolates are sensitive to quinolone group of drugs. Some are sensitive to aminoglycosides. Most of them were sensitive to nitrofurantoin.
Some of them were even immune to nitrofurantoin and 3rd coevals Mefoxins.
Some of them were merely sensitive to drawn-out spectrum ?-lactam antibiotic.
No benefit was idenitified in continued showing and intervention of symptomless bacteriuria. Antimicrobial therapy cleared bacteriuria in the short term, but did non diminish the Numberss of diagnostic episodes and hospitalizations during long term follow up, and the high rate of recurrent bacteriuria led to markedly increased usage of antimicrobic agents. Increasing antimicrobic opposition is a major concern [ 13 ] .
Antimicrobial direction of urinary piece of land infection in diabetic adult females should concentrate on the prompt designation and effectual intervention of diagnostic episodes [ 13 ] .
Isolated E.coli strains were immune at similar rates to ampicillin, cotrimoxozole, Cipro and Macrodantin in both diabetic and non-diabetic patients. Hence diabetes mellitus could non considered per se a hazard factor for the outgrowth of a non E.coli being and for antibiotic opposition [ 43 ] .
Diabetes has a considerable public wellness impact on the hazard for and forecast of enterobacterial bacteriemia acquired in the community [ 45 ] .
Screening for or intervention for ASB is non indicated in adult females with diabetes and intervention with antibiotics did non detain nor diminish the frequence of diagnostic UTI untill 3years of follow up [ 10 ] .
The clinical significance and direction of ASB differs harmonizing to different groups of patients as listed below [ 36 ] Indications for the intervention of patients with symptomless bacteriuria
Before an invasive GU process
School misss and premenopausal adult females
Children with reflux
Long term indwelling catheter
Patients with unnatural urinary piece of land
In most of the old surveies E.coli was the most prevailing micro-organism and klebsiella the 2nd most common [ 12 ] .
Analyzing the diabetic adult females with ASB showed that diverse E.coli strains are capable to be colonized in piss. Perennial infections were common chiefly after handling ASB most often with a new E.coli strain [ 14 ] .
In patients who had frequent E.coli causation ASB, repeated intervention did non decide the vesica infection [ 14 ] .
When compared to non diabetics ASB is more prevailing among females with type 2 diabetics in Sagamu, Nigeria [ 35 ] .
Womans with ASB had a significantly higher opportunity of developing a diagnostic UTI than not bacteriuric adult females [ 41 ] There is an increased susceptibleness to urinary piece of land infections in female diabetics above the age of 50, and diabetes likely in association with ripening, accentuates factors which allow the constitution of infection in non diabetic individuals instead than specially predisposing the kidney to infection [ 37 ] .
Guidelines published by the IDSA in 2005 province that there is no mensurable benefit in testing or handling ASB in the undermentioned patients: diabetic patients, premenopausal adult females who are non pregnant, older patients populating in the community and in the long term attention installations, and with spinal cord hurt patients or patients with indwelling vesica catheters [ 31 ] .
Screening and handling is appropriate for adult females during gestation and for patients who have a positive urine civilization consequence prior to surgical use of the urinary piece of land to avoid precipitating sepsis [ 31 ] .
In the past diabetes mellitus was regarded as a status in which ASB predisposed to renal papillose mortification and nephritic inadequacy but recent retrospective and prospective surveies indicate that does non transport a nephritic hazard. Therefore the possible benefit from antibacterial intervention of ASB is dubious. However we emphasize that one time diagnostic urinary piece of land infection is present, it tends to run a more aggressive clinical class in the diabetic patient [ 40 ] .
From all the surveies, past attacks to direction differed between U.S and European doctors. In the U.S. , intervention of bacteriuria was recommended whereas in Europe, bacteriuria is non treated. Even if diabetic adult females with symptomless bacteriuria are at hazard for diagnostic urinary infection, the overall cost benefit of testing and handling big Numberss of symptomless diabetic adult females at frequent intervals was in the demand to be evaluated. The inquiries were complex and broad -ranging. There was a demand to construct the current clinical observations and prevalence studies to make a foundation of cognition that is sufficient for developing rational and appropriate attack for caring for diabetic patient who has a urinary infection [ 3 ] . Long term follow up surveies will demo whether ASB becomes diagnostic and affects nephritic map in diabetic patients and whether intervention of ASB is warranted [ 4 ] .
Recently [ IDSA ] Infectitious Disease Society of America came out with a guidelines in the twelvemonth 2005 for diabetic adult females follows as
Many prospective and cohort surveies done in diabetic adult females for ASB which was followed up for 18 months to 14years of showed no differences in rates of occurence diagnostic urinary infection, patterned advance to diabetic complications.There was no hold, lessening in urinary infections nor the no of hospitalizations in persons with bacteriuria after 3 old ages of follow up was clearly proved by a randomized, controlled test for bacteriuria reported after a upper limit of 3 old ages of follow-up. There was no acceleration or patterned advance of diabetic complications like nephropathy etc. , in bacteriuric patients who did non have antimicrobic therapy. However, diabetic adult females who received antimicrobic therapy had significantly more inauspicious antimicrobic effects. Thus continued testing and handling symptomless bacteriuria in diabetic adult females ne’er showed any benefits and there was even grounds of some injury due antibiotic use.
Screening and intervention of symptomless bacteriuria in diabetic adult females is non indicated ( A-I ) .
The guidelines besides mention that antimicrobic therapy is frequently unsuccessful in eliminating the micro-organisms and may, in fact, consequence in occurence of immune micro-organisms, such as drawn-out spectrum ?-lactamase immune bacteriums, vancomycin – immune enterococci, and other multidrug-resistant bacteriums. In add-on, intervention of patients will subject them to the hazard of an allergic reaction, diarrhea, and other inauspicious reactions ensuing from usage of the antimicrobic drug. Finally, clostridia difficile infection may develop, because the intestine vegetation is altered when handling ASB [ 31 ] .
Endothelial disfunction, oxidative emphasis, and the increased formation of advanced terminal merchandises, lower urinary cytokine concentration and hence decreased urinary leucocyte Numberss compared with nondiabetic adult females may play a function in the development of diabetic complications [ 4 ] .
Defective polymorphonuclear leucocyte maps [ opsonization, chemotaxis, phagocytosis and killing ] are possible conducive factors. Changes of bacterial adhesion to uroepithelial cells, partially explained by alterations of the chemical science and concentration of Tamm-Horsfall protein besides promote urinary – piece of land infection [ 24 ] .
The vesica disfunction due to diabetic neuropathy taking to impaired vesica elimination could play a function in the prevalence of ASB among adult females with diabetes and in the natural history of UTI [ 8,28 ] .
Clinical tests covering with the intervention of symptomless bacteriuria in diabetes are limited. The undermentioned decisions can be made from these tests.
Frequent reinfections occur instead than backslidings.
Long term suppressive therapy is effectual, nevertheless when discontinued, perennial infections occur comparatively quickly.
Few patients sustain a permanent remittal from bacteriuria.
Trying obliteration of bacteriuria in patients with anatomic abnormalcies may be ineffectual.
Therefore, there are no benefits in continued showing and handling diabetic persons with symptomless bacteriuria and as there is possibility of some injury with antibiotic overusage.
In this survey we could’nt step HbA1c for all the patients as it was non executable and so could’nt assess the relationship between glucose degrees and symptomless bacteriuria.
We besides have no thought whether there would be any opportunity of development of complications in the persons diagnosed with symptomless bacteriuria as this is non a follow up survey. Hence measuring of HbA1c degrees and a follow up of these civilization positive patients would give a better apprehension in the relationship between glucose degrees and asmptomatic bacteriuria and the presence or absence of complications in civilization positive patients.
There is a high incidence of symptomless bacteruria in diabetes patients, chiefly in females than males in this survey. Therefore, there are 2 subjects to inquiry, whether symptomless bacteriuria is associated with inauspicious results. ? , whether the intercessions of showing and antimicrobic intervention better these results? The inquiries whether they develop complications or non and whether antibiotic therapy is needed or non necessitate to be assessed by farther follow up surveies. However latest guidelines suggest that antimicrobic therapy did non detain nor diminish the frequence of diagnostic urinary infection, nor did it diminish the figure of hospitalizations due to urinary infections nor it prevented the acceleration of patterned advance of diabetic complications, therefore periodic proving for symptomless bacteriuria is non recommended for individuals with diabetes mellitus.
Based on the consequences and the methodological analysis employed, we have concluded that:
High incidence of symptomless bacteriuria has been observed in both diabetic males and females.
High incidence of symptomless bacteriuria occur in both diabetes mellitus on insulin and unwritten hypoglycaemic agents.
Causative beings in diabetic and non diabetic symptomless bacteriuria are similar. E.coli is the commonest being.
Most of the symptomless bacteriuria instances occurred in the age group of 41 to 60 old ages.
Asymptomatic bacteriuria occur inspite of good glycemic control.
. Preventive steps for diabetic patients include increased surveillance and turning away of well-known hazard factors for urinary piece of land infections.
Asymptomatic bacteriuria can be present even in freshly diagnosed diabetic patients.
Most of the being are sensitive to nitrofurantoin. Some are sensitive to aminoglycosides, fluroquinolones.
Some beings are merely sensitive to drawn-out spectrum ?-lactam antibiotics.
Periodic proving for symptomless bacteriuria is non recommended for individuals with diabetes mellitus as per latest guidelines.
Aim: To analyze the incidence of symptomless bacteruria between diabetics and non diabetics, the common beings and their antibiotic sensitiveness
Methods: A sum of 100 diabetic patients and 50 non diabetic controls without any history of urinary piece of land infection and catheterization was enrolled in this survey
Consequences: The incidence of ASB was 39 in diabetic and 3 in control with the significance of P & A ; lt ; 0.001. Diabetic patients have 11.34 times higher hazard in developing symptomless bacteriuria than non diabetics.
Decision: The incidence of ASB is significantly increased in diabetic patients as compared to non diabetic controls.A larger survey with a longer follow-up is needed to turn to the issue of handling such patients who are symptomless