R. Astolfi

ORCID: 0000-0003-1531-7863
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About
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Research Areas
  • Pediatric Urology and Nephrology Studies
  • Kidney Stones and Urolithiasis Treatments
  • Ureteral procedures and complications
  • Infant Nutrition and Health
  • Renal and Vascular Pathologies
  • Clinical Nutrition and Gastroenterology
  • Gastrointestinal motility and disorders
  • Eosinophilic Esophagitis
  • Breastfeeding Practices and Influences
  • Intestinal Malrotation and Obstruction Disorders
  • COVID-19 epidemiological studies
  • Gastroesophageal reflux and treatments
  • Helicobacter pylori-related gastroenterology studies
  • Abdominal vascular conditions and treatments
  • Viral gastroenteritis research and epidemiology
  • Genital Health and Disease
  • Aortic aneurysm repair treatments
  • Hormonal and reproductive studies
  • Abdominal Surgery and Complications
  • Sexual function and dysfunction studies
  • COVID-19 and healthcare impacts
  • Crime Patterns and Interventions
  • Neonatal Health and Biochemistry
  • Infectious Aortic and Vascular Conditions
  • Congenital gastrointestinal and neural anomalies

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2024

Universidade Federal de São Paulo
2017-2022

Instituto de Ensino e Pesquisa Santa Casa
2022

Universidade de São Paulo
2011

Music Conservatory of Mantova
1989

University of Genoa
1983

University of Verona
1983

The effectiveness of cimetidine (30–40 mg/ kg/day) was evaluated in 32 children with gastroesophageal reflux disease complicated by esophagitis who entered a random double-blind trial for 12 weeks. Esophagitis diagnosed all patients endoscopy biopsy. Seventeen (age, mean ± SD: 21.7 97.65 months) received (c-pts), and 15 29.03 39.73 placebo (p-pts). All intensive postural therapy. Based on clinical endoscopic (and histologic) data, c-pts three p-pts were healed (p < 0.01), the condition four...

10.1097/00005176-198902000-00005 article EN Journal of Pediatric Gastroenterology and Nutrition 1989-02-01

Erectile dysfunction, defined as the inability to achieve and/or maintain a penile erection sufficient for satisfactory sexual intercourse is associated with impaired quality of life and cardiovascular diseases in men older than 40 years.To evaluate association between erectile dysfunction physical activity levels large cohort men.Data from 20,789 males aged years over who participated check-up screening January 2008 December 2018 were included this study. In sample, data about levels,...

10.1371/journal.pone.0276963 article EN cc-by PLoS ONE 2022-11-16

Abstract There is a vast literature evaluating the empirical association between stay-at-home policies and crime during COVID-19 pandemic. However, these academic efforts have primarily focused on effects within specific cities or regions rather than adopting cross-national comparative approach. Moreover, this body of not only generally lacks causal estimates but also has overlooked possible heterogeneities across different levels stringency in mobility restrictions. This paper exploits...

10.1186/s40163-024-00220-y article EN cc-by Crime Science 2024-08-22

A commercially available wheat bran preparation has been given to six infants between the ages of 6 and 16 months suffering from constipation not due metabolic or anatomic causes. In all infants, normal bowel movements reappeared after a month diet containing bran. After on this diet, we observed following: decrease in blood levels calcium, phosphate, trace elements; an increase fecal excretion biliary salts cholesterol; appearance predominantly proteolytic flora over saccharolitic flora....

10.1097/00005176-198201010-00015 article EN Journal of Pediatric Gastroenterology and Nutrition 1982-01-01

Summary Seventy‐six normal full‐term infants have been observed from birth to the fourth month of life. Thirty‐six were breast‐fed; others fed four different feeds (conventional or adapted formulas) containing amounts calories, protein, fat, and carbohydrate. The control mechanism volume intake appears be well functioning in human milk formulas providing conventional calorie concentrations. other associated with either a high BUN base insulin It is concluded that uncontrolled should only...

10.1002/j.1536-4801.1986.tb09175.x article EN Journal of Pediatric Gastroenterology and Nutrition 1986-09-01

To analyze the results of flexible ureterorenoscopy (F-URS) with holmium laser in treatment kidney stones ectopic and fusion anomalies (horseshoe rotation anomalies).We reviewed data from 13 patients renal that underwent F-URS April 2011 to 2017. We analyzed demographic clinical (age, gender, BMI, anatomical abnormality, location dimension calculi) perioperative (method treatment, stone-free rate, number days DJ catheter complications).The mean stone size was 12.23 +/- 5.43 mm (range...

10.1590/1806-9282.63.08.685 article EN Revista da Associação Médica Brasileira 2017-08-01

Objective: To elucidate the current scenario of endourology in Brazil for treatment urinary lithiasis, with an emphasis on regional differences and reasons why certain techniques are still underutilized. Materials Methods: An electronic questionnaire was sent by email to 4,745 members Brazilian Urological Society (BSU) 2016 collect information 3 main endourological procedures used nephrolithiasis: Semi-rigid ureteroscopy (URS), Flexible (F-URS) percutaneous nephrolithotripsy (PCNL). Results:...

10.1590/s1677-5538.ibju.2019.0363 article EN cc-by International braz j urol 2020-03-31

As the number of kidney transplants continues to rise, so does and complexities surgical-related complications, which may be associated with increased morbidity potentially graft loss. Ureteral stenosis, most prevalent urological complication, require diverse techniques for surgical correction depending on several recipient abnormalities. Here we report clinical outcomes a 62-year-old man posttransplant pyeloureterostomy stricture successfully treated ureterocalicostomy after lower pole...

10.1111/ajt.14938 article EN cc-by-nc-nd American Journal of Transplantation 2018-05-16

Seventy-six normal full-term infants have been observed from birth to the fourth month of life. Thirty-six were breast-fed; others fed four different feeds (conventional or adapted formulas) containing amounts calories, protein, fat, and carbohydrate. The control mechanism volume intake appears be well functioning in human milk formulas providing conventional calorie concentrations. other associated with either a high BUN base insulin It is concluded that uncontrolled should only breast-fed...

10.1097/00005176-198609000-00016 article EN Journal of Pediatric Gastroenterology and Nutrition 1986-09-01

The effectiveness of cimetidine (30–40 mg/ kg/day) was evaluated in 32 children with gastroesophageal reflux disease complicated by esophagitis who entered a random double‐blind trial for 12 weeks. Esophagitis diagnosed all patients endoscopy biopsy. Seventeen (age, mean ± SD: 21.7 97.65 months) received (c‐pts), and 15 29.03 39.73 placebo (p‐pts). All intensive postural therapy. Based on clinical endoscopic (and histologic) data, c‐pts three p‐pts were healed ( p &lt; 0.01), the condition...

10.1002/j.1536-4801.1989.tb09725.x article EN Journal of Pediatric Gastroenterology and Nutrition 1989-02-01

INTRODUCTION AND OBJECTIVE: The use of polymeric double J stents for the management ureteral strictures is effective a short period time, although they have limited due to risk obstruction and need periodic stent changes. Metal been developed with aim maintaining greater ureteric patency, alleviating symptoms, and, especially, allowing less frequent exchanges. Although metallic changes are approved 12 months, there no concrete data defining safe dwell-time prevent clinically significant...

10.1097/ju.0000000000000863.06 article EN The Journal of Urology 2020-04-01

You have accessJournal of UrologyCME1 May 2022PD19-05 BASKETING VERSUS DUSTING LITHOTRIPSY FOR KIDNEY STONES DURING FLEXIBLE URETEROSCOPY: RANDOMIZED CONTROLLED TRIAL AND COMPUTERIZED TOMOGRAPHY FOLLOW UP Alex Meller, Rafael Astolfi, Gustavo Freschi, Raphael Carrera, and Marcus Sadi MellerAlex Meller More articles by this author , AstolfiRafael Astolfi FreschiGustavo Freschi CarreraRaphael Carrera SadiMarcus View All Author Informationhttps://doi.org/10.1097/JU.0000000000002557.05AboutPDF...

10.1097/ju.0000000000002557.05 article EN The Journal of Urology 2022-04-07

Introduction Although rare, as the population ages, abdominal aortic aneurysm synchronous to malignancies, renal cell carcinoma, is expected become more prevalent. There are only two case reports of minimally invasive surgeries treat these diseases, with endovascular repair and laparoscopic nephrectomy, but they were performed in stages, iodinated contrast without robotic assistance. Case report We herein present a 71-year-old patient chronic kidney disease, 6.4 cm infra-renal associated...

10.1177/15385744221120975 article EN Vascular and Endovascular Surgery 2022-08-11

Summary A commercially available wheat bran preparation has been given to six infants between the ages of 6 and 16 months suffering from constipation not due metabolic or anatomic causes. In all infants, normal bowel movements reappeared after a month diet containing bran. After on this diet, we observed following: decrease in blood levels calcium, phosphate, trace elements; an increase fecal excretion biliary salts cholesterol; appearance predominantly proteolytic flora over saccharolitic...

10.1002/j.1536-4801.1982.tb08300.x article EN Journal of Pediatric Gastroenterology and Nutrition 1982-03-01
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