The effect of Ramadan on asymptomatic bacteriuria, urinary tract infections and amniotic fluid index in pregnancy. Perinatal Journal 2008;16(2):67-71
- Gaziantep Üniversitesi Tıp Fakültesi, Kadın Hastalıkları ve Doğum Anabilim Dalı- Gaziantep TR
- Gaziantep Üniversitesi Tıp Fakültesi, Radyoloji Anabilim Dalı- Gaziantep TR
- Gaziantep Üniversitesi Tıp Fakültesi, Biyokimya Anabilim Dalı- Gaziantep TR
Conflicts of Interest
No conflicts declared.
To show the effect of 12 hours fasting in a day during Ramadan on asymptomatic bacteriuria, urinary tract infections and amniotic fluid index in pregnant patients.
This study was carried out in Obstetrics and Gynecology Department of Gaziantep University Hospital, between September 23th and October 23th in year 2006 (during Ramadan). Fourty-one consecutive healthy women with uncomplicated pregnancies of 20 weeks or more who were fasting during Ramadan were included in the study group (Group 1). The control group (Group 2) consisted of 31 healthy pregnant women who were not fasting during the study period.All of these patients evaluated with urinary dipstick test in the morning and at 5 pm.for urine osmolality,leucocyteuria, and bacteriuria.After determinated a positive dipstick urine culture was performed.Urinary osmolality was also measured by dipstick test. Doppler ultrasonography was performed in all subjects in the beginning and at the end of Ramadan for the following the change of amniotic fluid index.
The mean of urinary osmolality was higher in the fasting group.There was no statistically difference between two groups for asymptomatic bacteriuria and urinary tract infections rate.Amniotic fluid index was similar in two groups.
Twelwe hours fasting in a day during Ramadan causes hypohydration and leads an increase urinary osmolality but, it does not changes the rate of asymptomatic bacteriuria and urinary tract infections in pregnancy.
Ramadan, pregnancy, asymptomatic bacteriuria, urinary tract infections, amniotic fluid index
During the religious festival of Ramadan, practising Muslims refrain from eating, drinking, smoking and sexual relationships during the hours of daylight throughout the lunar month (1).Generally, meal frequency is reduced during Ramadan fasting, which it has been found often leads to reduced energy intake and loss of body mass and body fat.Any loss in body mass index is usually relativelly small and it may also be attributed to a decrease of glycogen-bound water stores, extracellular volume concentration secondary to a lower sodium intake, and a moderate degree of hypohydration with little loss of body tissue (2).Hypohydration is a risk factory for asymptomatic bacteriuria and urinary tract infections in pregnancy.Pregnant women with asymptomatic bacteriuria have an increased risk of pyelonephritis and there is a strong association between asymptomatic bacteriuria and preterm and low birth weight delivery (3, 4,5). Our aim was to evaluate the effect of Ramadan fasting on asymptomatic bacteriuria and urinary tract infections in pregnant women.
This study was carried out in Obstetrics and Gynecology Department of Gaziantep University Hospital, between September 23th and October 23th in year 2006 (during Ramadan). Fourthy-one consecutive healthy women with uncomplicated pregnancies of 20 weeks or more who were fasting during Ramadan were included in the study group (Group 1). The control group (Group 2) consisted of 31 healthy pregnant women who were not fasting during the study period. For evaluating Ramadan’s effect on asymptomatic bacteriuria and urinary tract infections in pregnant women , we evaluated all patients with dipstick urinanalysis in the morning and just before breaking the fasting (at 5 pm)..Positive urinanalysis was defined as a dipstick result that shows positive nitrites and/or more than 1+ leucocytes, blood or protein.Any patient who has a positive dipstick test evaluated with a midstream urine culture.A positive midstream urine specimen was defined as a pure growth >100 000 organisms in urine on laboratory culture.Asymptomatic bacteriuria was treated with oral cephalexin in all cases. Examinations by Doppler ultrasonography were performed once a week to all subjects for the moniterization of amniotic fluid index (AFI) during the Ramadan. High definition image (HDI; A 3.5 MHz convex transducer, Applio- Toshiba, Otamara, Japan) was used to obtain AFI . Amniotic fluid index was calculated by the sum of deepest vertical pocket in 4 uterine quadrants measured in sonography. Oligohydramnios is defined as amniotic fluid index of ≤5 cm (6). To remove the effect of other factors causing oligohydramnios and polihydramnios, all cases with urinary or skeletal anomalies, intrauterine growth retardation, multiple pregnancy, diaphragmatic hernia, diabetes, fetal hydrops and premature rupture of membrane were excluded from the study.
All comparisons between the groups were done by t-test or Mann Whitney Rank Sum test where it is appropriate. Sigma Stat 3.0 was used for statistical analysis. P value<0.05 was accepted as significant.
No significant difference was found between the two groups for maternal age, and pregnancy weeks.There was no statistically difference between two groups for asymptomatic bacteriuria (p=0.490).Ten patients in Group 1 ten patients (2.4 %), in Group 2 eight pateints (2.5%) had asymptomatic bacteriuria and treated by oral cephalexin.In Group 1,there are only two patients had urinary tract infections (4.8 %), in first case midstream urine culture was posite for E.Coli and treated successfully with intravenous cephalexin in 27th pregnancy weeks.In second patients, midstream urine culture was posite for β streptococus, and treated with parenteral amphicilline-sulbactam.In Group 2, only one patients (3.2%) had urinary tract infection due to E.Coli and treated with parenteral cephalexin in 25 th pregnancy weeks.There was no statistically difference between two groups for urinary tract infections (p=0.54).
AFI was did not change during the Ramadan and there was no difference between two groups (p=0.434).Urine osmolality was significantly increased in fasting group during the Ramadan (p=0.01).
During the daylight hours of Ramadan fasting, practising Muslims are undoubtely dehydrating at a rate that is determined by the loss of body water minus the amount of metabolic water that is produced over this period (7). No definitive evidence has been found to show that a susceptibility to urinary tract infection is influenced by fluid intake (8).In three reports, urinary tract infections was associated with a low fluid intake or low urine output (9-11).In two prospective studies in girls, recurrent urinary tract infections was associated with infrequent urine voiding and poor fluid intake.A study in adults with urinary catheters showed that low urine output was significantly related to urinary tract infections (11).Water deprivation is functionally characterized by maximum urine concentration .In 20 Malaysian Muslims, urine was collected before, during and after Ramadan fasting each in the morning (0800-1200), afternoon (1200-1600) and overnight (1600-0800).The authors found that Ramadan fasting did not affect the overnight urine volume or osmolality (means: 649-781), indicating that the subjects were probably not subjected to severe water deprivation (12). In another study, urinary osmolality was higher during Ramadan than either before or after Ramadan (7).In our study, urinary osmolality was significantly higher just before breaking the fast (at 5 pm).
Urinary tract infections are a common complication of pregnancy.Symptomatic urinary tract infections occurs in 1% to 2% of pregnancies, while asymptomatic bacteriuria has been reported in 2% to 13% of pregnant women (3, 4). In this sudy, urinary osmolality was significantly higher just before breaking the fast (at 5 pm) but, there was not statistically difference between two groups for asymptomatic bacteriuria (2.4% versus 2.5%, and p=0.490).Pregnant women with asymptomatic bacteriuria have a 20-30 fold increased risk of developing pyelonephritis compared to women without bacteriuria (13, 14). Antimicrobial treatment of asymptomatic bacteriuria during pregnancy decreases the risk of subsequent pyelonephritis from 20-35% to 1-4% (14).Therefore, we treated all of these patients to prevent the risk of pyelonephritis.
In our study, the urinary osmolality was higher than control group but urinary tract infections rate was similar in both groups (4.8 % versus 3.3%, p=0.54).We also suggested to all patients in two groups to drink at least 2 liter water during the day.It could be prevent hypohydration and urinary tract infections.
Ramadan changes urinary osmolality during the fasting hours, but does not affect the rate of asymptomatic bacteriuria and urinary tract infections in pregnancy.
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Comparison of the maternal data between fasting and non-fasting groups.
Comparison of the results between two groups.