ANUAR IBRAHIM MITRE
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Cirurgia, Faculdade de Medicina - Docente
8 resultados
Resultados de Busca
Agora exibindo 1 - 8 de 8
- Pyeloplasty in Adults With Ureteropelvic Junction Obstruction in Poorly Functioning Kidneys: A Systematic Review(2021) FREITAS, Pedro. F. S.; BARBOSA, Joao. A. B. A.; ANDRADE, Hiury S.; ARAP, Marco A.; MITRE, Anuar I.; NAHAS, William C.; SROUGI, Miguel; DUARTE, Ricardo J.; SROUGI, VictorOBJECTIVES To systematically summarize the available evidence concerning the impact of pyeloplasty on symptoms and differential renal function (DRF) in adults with unilateral UPJO in poorly functioning kidneys (PFK), and to identify potential predictors of kidney function recovery that could help clinicians select candidates for pyeloplasty. METHODS A literature search (MEDLINE, Embase, Google Scholar, Scopus, ClinicalTrials.gov, and the WHO Clinical Trials Registry) and systematic review were performed up to September 2020 according to the PRISMA guidelines. PFK were defined as a baseline DRF =30% on renal scintigraphy. The primary endpoints were symptom relief and postoperative scintigraphic DRF. Predictors of kidney function recovery were evaluated and compared among studies. RESULTS Nine studies comprising 731 patients met the inclusion criteria and were included for evidence synthesis. A DRF increase >5% occurred in 13.3%-53.8% of 160 patients with a pre- and postoperative renal scan. Symptoms improved in 73.3%-93.3% of 141 adults after pyeloplasty. Neither patient's age, baseline DFR, comorbidities, degree of hydronephrosis, kidney parenchymal thickness, nor kidney biopsy findings consistently predicted a significant DRF increase among 375 patients undergoing pyeloplasty. CONCLUSION Based on a low level of evidence, pyeloplasty may relieve symptoms and stabilize kidney function in adults with UPJO in PFK. A significant number of patients showed a DRF increase >5%, yet no consistent predictor of kidney function recovery was identified. Until more evidence becomes available, pyeloplasty could be considered for selected cases after accounting for the risks of a failure requiring a future nephrectomy. (C) 2021 Elsevier Inc.
- The role of urinary KIM-1, NGAL, CA19-9 and beta 2-microglobulin in the assessment of ureteropelvic junction obstruction in adults(2017) MIRANDA, Eduardo P.; DUARTE, Ricardo J.; BESSA JR., Jose de; LOPES, Roberto I.; SROUGI, Victor; ANDRADE, Hiury S.; BANDEIRA, Rodolfo A. S. T.; ARAP, Marco A.; MITRE, Anuar I.; VIANA, Nayara I.; REIS, Sabrina T.; LEITE, Katia R. M.; SROUGI, MiguelPurpose: The objective of this study is to evaluate the diagnostic properties of urinary biomarkers in adults with ureteropelvic junction obstruction: KIM-1, NGAL, CA19-9, and beta 2-microglobulin. We also assessed urinary biomarker concentrations following pyeloplasty. Material and methods: We prospectively studied adults from December 2013 to February 2015. We included 47 patients with a mean age of 38.6 +/- 12.7 years. Each patient provided four samples of voided urine for biomarker measurement, one at pre-operative consultation and the others at 1, 3, and 6 months of post-operative follow-up. The control group consisted of 40 healthy individuals with no hydronephrosis on ultrasound evaluation. Results: KIM-1 had an area under the curve of 0.79 (95% CI 0.70-0.89), NGAL 0.71 (95% CI 0.61-0.83), CA19-9 0.70 (95% CI 0.60-0.81), and beta 2-microgloblin 0.61 (95% CI 0.50-0.73). KIM-1 was the most sensitive marker with a cut-off of 170.4 pg/mg creatinine (sensitivity 91.4%, specificity 59.1%), whereas CA19-9 was the most specific with a cut-off of 51.3 U/mg creatinine (sensitivity 48.9%, specificity 88.0%). Urinary concentrations of biomarkers decreased after pyeloplasty. Conclusions: The evaluation of urinary biomarkers is useful in adults undergoing pyeloplasty. KIM-1, NGAL, and CA19-9 were elevated and significantly decreased after surgery.
- Laparoscopic Ureterocalicostomy Technique(2023) NUNES, Romulo S. S.; SUARTZ, Caio V.; ANDRADE, Hiury S.; JORDAO, Ricardo D.; SROUGI, Victor; MITRE, Anuar I.; NAHAS, William C.; ARAP, Marco A.Purpose: Ureterocalicostomy is a technique that was first described by Neuwirt in 1948 (1) The laparoscopic access was initiated in 2003 by Cherullo et al. (2), following the established principles of open surgery. In 2004, Gill et al. had two patients with UPJO treated with laparoscopic ureterocalicostomy, with success (3). In 2014, Arap et. al. presented a case series with good results in adults and children in our service (4). There are factors that prepare the surgeon for an ureterocalicostomy, such as the renal cortex thickness, although the decision is mainly taken during the procedure (5).Material and Methods: A 24 years-old female patient with right lumbar pain was referred to our institution. She already had a right open pyeloplasty two years ago. The CT scan presented a right hydronephrotic kidney, DMSA scan with 30% of relative function and a DTPA scan with an obstructive pattern.Results: A laparoscopic ureterocalicostomy was performed due to the intra-operative findings (inferior kidney pole thickness and challenging access to the uretero-pelvic junction). The overall time was 130 minutes with no complications. The patient was discharged in two days and the double J was withdrawn in four weeks. The CT scan within one year demonstrates a reduction of the hydronephrosis. She had no more lumbar pain.Conclusion: In complex cases, the laparoscopic ureterocalicostomy proves to be a safe and efficient procedure, with a free tension-free anastomosis and the advantages of the laparoscopic access.
- Postoperative Renal Function in Patients Undergoing Unilateral Nephrectomy: Development of a Prediction Model Using Preoperative Risk Factors and Cr-51-EDTA Clearance(2020) ANDRADE, Hiury S.; SROUGI, Victor; ARAP, Marco A.; MITRE, Anuar I.; CAMARGO, Cristina P.; ZARGAR, Homayoun; KAOUK, Jihad H.; NAHAS, Willian C.; SROUGI, Miguel; DUARTE, Ricardo J.Objectives: To analyze the preoperative variables associated to the postoperative glomerular filtration rate (GFR) outcomes after nephrectomy for benign and malignant conditions, measured by the reference isotopic technique Cr-51-ethylene diamine tetra-acetic (Cr-51-EDTA) and to create a model to predict the short-term postoperative GFR. Secondary aim was to evaluate which of the common equations for GFR estimation (Cockcroft-Gault, Modification of Diet in Renal Disease [MDRD] or Chronic Kidney Disease Epidemiology Collaboration [CKD-EPI]) has the best correlation with the Cr-51-EDTA. Methods: Patients undergoing unilateral nephrectomy from 2014 to 2018 were selected. Pre- and postoperative variables were prospectively collected. Univariate and multivariate analyses were done to identify independent risk factors associated with renal function outcomes and to create a model to predict the postoperative GFR. Correlation analyses were performed to evaluate the performance of various serum creatinine-based equations for GFR estimation compared with Cr-51-EDTA. Results: In total, 107 patients were evaluated. After univariate and multivariate analyses, older age (p = 0.008), higher split function of the operated kidney on dimercaptosuccinic acid (DMSA) scintigraphy (p < 0.001), and lower preoperative Cr-51-EDTA (p < 0.001) were independent risk factors for higher GFR decline. Correlation analyses showed that GFR estimated by CKD-EPI equation had the best concordance to GFR measured by Cr-51-EDTA. Conclusions: Based on our findings age, DMSA and lower preoperative Cr-51-EDTA are predictors of postoperative renal function after unilateral nephrectomy. For the assessment of estimated GFR, CKD-EPI equation appears to have the best concordance with Cr-51-EDTA.
- Laparoscopic pyeloplasty as an alternative to nephrectomy in adults with poorly functioning kidneys due to ureteropelvic junction obstruction(2021) NASCIMENTO, Bruno; ANDRADE, Hiury S.; MIRANDA, Eduardo P.; BARBOSA, Joao Arthur Brunhara Alves; MOSCARDI, Paulo R.; ARAP, Marco A.; I, Anuar Mitre; SROUGI, Miguel; SROUGI, Victor; DUARTE, Ricardo J.Objectives To evaluate outcomes of laparoscopic pyeloplasty (LP) in adults with poorly functioning kidney due to ureteropelvic junction obstruction (UPJO). Methods A retrospective comparative analysis was performed between adult patients who underwent LP due to UPJO with differential renal function (DRF) <= 15% and DRF > 15%. LP success rate and complications were assessed. LP success was defined as symptoms improvement and DRF improvement or stabilization. DRF and estimated glomerular filtration rate (eGFR) were analyzed before and 12 months after surgery to evaluate renal function recovery. DRF was estimated using Tc-99 m DMSA renal scintigraphy. Results Among 121 LP performed in the study period at our institution, 15 and 42 were included in the DRF <= 15% and DRF > 15% groups, respectively. At a median follow-up of 17.8 months, all patients with DRF <= 15% reported symptoms improvement. LP success rate was 86.7% and 90.5% (p = 0.65) for patients with DRF <= 15% and DRF > 15%, respectively. There were no complications in the DRF <= 15% group, while there were three complications recorded in the DRF > 15% group (Clavien 2 and 3b). In the DRF <= 15% group, mean pre-operative and post-operative DRF was 9.5% +/- 3.6 and 10.5% +/- 7.8 (p = 0.49), respectively. Median pre-operative and post-operative eGFR was 68.5 ml/min and 79.8 ml/min (p = 0.93), respectively. Two patients had DRF improvement after LP. Conclusions LP in adult patients with UPJO and poor function kidneys is an effective and safe procedure. DRF recovery is seen in a minority of the patients; however, LP is an alternative to nephrectomy.
- Retroperitoneoscopic ureterolithotomy to treat large ureteral stones in the proximal ureter(2020) SROUGI, Victor; TORRICELLI, Fabio C.; ANDRADE, Hiury S.; ARAP, Marco A.; I, Anuar Mitre; MAZZUCCHI, Eduardo; DUARTE, Ricardo J.; SROUGI, MiguelIntroduction: Retroperitoneoscopic ureterolithotomy emerged as an option for the extraction of large stones in the proximal ureter, offering short convalescence and low rates of residual fragments. Materials and methods: We describe the case of a 50-year-old male, who presented at our emergency department with right flank pain for 15 days without fever. He had a past medical history of nephrolithiasis. A non-contrast computed tomography (NCCT) evidenced a stone with 1.5cm and 1200HU in the right proximal ureter associated with ipsilateral hydronephrosis. A retroperitoneoscopic ureterolithotomy was planned. Results: The surgery was performed under general anesthesia, with the patient in 90o left lateral decubitus. Retroperitoneal space was created with blunt finger dissection. Three ports were used and the operative time was 60 minutes. Foley catheter was removed the morning after the procedure and the drain 8 hours later. The patient was discharged in the first postoperative day. Double J catheter withdrawal was done 4 weeks after surgery. No intraoperative or postoperative (90-days) complications were recorded. Control NCCT demonstrated the complete removal of the ureteral stone. Conclusion: The retroperitoneoscopic approach is an effective alternative to treat large proximal ureteral stones.
conferenceObject STEP-BY-STEP LAPAROSCOPIC VESICULECTOMY FOR HEMOSPERMIA(2016) MELLO, Marcos F.; ANDRADE, Hiury S.; SROUGI, Victor; ARAP, Marco A.; MITRE, Anuar I.; DUARTE, Ricardo J.; SROUGI, Miguel- Learning robotic pyeloplasty without simulators: an assessment of the learning curve in the early robotic era(2019) CHAMMAS JR., Mario F.; MITRE, Anuar I.; ARAP, Marco A.; HUBERT, Nicholas; HUBERT, JacquesOBJECTIVE: To analyze our experience and learning curve for robotic pyeloplasty during this robotic procedure. METHODS: Ninety-nine patients underwent 100 consecutive procedures. Cases were divided into 4 groups of 25 consecutive procedures to analyze the learning curve. RESULTS: The median anastomosis times were 50.0, 36.8, 34.2 and 29.0 minutes (p=0.137) in the sequential groups, respectively. The median operative times were 144.6, 119.2, 114.5 and 94.6 minutes, with a significant difference between groups 1 and 2 (p=0.015), 1 and 3 (p=0.002), 1 and 4 (p<0.001) and 2 and 4 (p=0.022). The mean hospital stay was 7.08, 4.76, 4.88 and 4.20 days, with a difference between groups 1 and 2 (p<0.001), 1 and 3 (p<0.001) and 1 and 4 (p<0.001). Clinical and radiological improvements were observed in 98.9% of patients. One patient presented with recurrent obstruction. CONCLUSIONS: Our results demonstrate a high success rate with low complication rates. A significant decrease in hospital stay and surgical time was evident after 25 cases.