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  • Title: [Urolithiasis and pregnancy. Presentation of results and management norm at the National Institute of Perinatology].
    Author: Romero Nava LE, Velázquez Sánchez Mdel P, Kunhardt Rasch JR.
    Journal: Ginecol Obstet Mex; 2004 Oct; 72():515-24. PubMed ID: 15790192.
    Abstract:
    AIMS: Urolithiasis associated to pregnancy has an incidence of 1:1,500. It is more frequent in multiparity patients and is a risk factor for preterm labor in more than 40%. OBJECTIVES: To know the incidence of urolithiasis associated to pregnancy at the National Institute of Perinatology; to determine the prevalence of: symptoms and signs, hydronephrosis, urinary tract infections, uropathogens, use of catheters and perinatals results. METHODS: A cohort study was made from January 1998 to October 2003, to identify pregnant patients with urolithiasis. The clinical files were reviewed; Fisher's exact test was used for statistical analysis. RESULTS: Twenty-one patients were diagnosed with urolithiasis; 71% had lumbar pain; 57.1% hematuria; 47.6% bilateral urolithiasis; and 33% bilateral hydronephrosis. All the patients who had lumbar pain, hematuria or were catheterized developed urinary tract infection, even with antibiotics prophylaxis. The 52.4% had at least one urinary tract infection episode. The average gestational age at birth was 38.5 weeks (+/- 5.6 weeks). The 84.22% were preterm births. CONCLUSION: Our incidence is similar to the one reported in the literature. The 71.26% has at least one of the symptoms from the classic triad of urolithiasis. The prevalence of urinary tract infection in these patients is very high therefore; antibiotics prophylaxis and urine cultures are required. A lower prevalence of preterm births was obtained. A flow chart for diagnosis and follow-up was presented in order to decrease and to face the possible complications of this pathologic entity.
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