ISAAC JOSE FELIPPE CORREA NETO
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
9 resultados
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bookPart Cirurgia paliativa(2023) PINTO, Rodrigo Ambar; CORRêA NETO, Issac José Felippe- Comparing three-dimensional endorectal ultrasound and magnification chromoendoscopy for early rectal neoplasia invasion depth assessment(2024) PINTO, Rodrigo Ambar; KAWAGUTI, Fabio Shiguehissa; KIMURA, Cintia Mayumi Sakurai; CORREA NETO, Isaac Jose Felippe; NAHAS, Caio Sergio Rizkallah; MARQUES, Carlos Frederico Sparapan; BUSTAMANTE-LOPEZ, Leonardo Alfonso; RIBEIRO-JR, Ulysses; MALUF-FILHO, Fauze; NAHAS, Sergio CarlosIntroductionAccurate assessment of invasion depth of early rectal neoplasms is essential for optimal therapy. We aimed to compare three-dimensional endorectal ultrasound (3D-ERUS) with magnification chromoendoscopy (MCE) regarding their accuracy in assessing parietal invasion depth (T).MethodsPatients with middle and distal rectum neoplasms were prospectively included. Two providers blinded to each other's assessment performed 3D-ERUS and MCE, respectively. The T stage assessed through ERUS was compared to the MCE evaluation. The results were compared to the surgical specimen anatomopathological report. Sensitivity, specificity, accuracy, positive (PPV), and negative (NPV) predictive values were calculated for the T stage and for the final therapy (local excision or radical surgery).ResultsIn 8 years, 70 patients were enrolled, and all underwent both exams. MCE and ERUS showed an accuracy of 94.3% and 85.7%, sensitivity of 83.7 and 93.3%, specificity of 96.4 and 83.6%, PPV of 86.7 and 60.9%, and NPV of 96.4 and 97.9%, respectively. Kappa for T stage assessed through ERUS was 0.64 and 0.83 for MCE.ConclusionMCE and 3D-ERUS had good diagnostic performance, but the endoscopic method had higher accuracy. Both methods reliably assessed lesion extension, circumferential involvement, and distance from the anal verge.
- Are Obese Patients at an Increased Risk of Pelvic Floor Dysfunction Compared to Non-obese Patients?(2017) CORREA NETO, Isaac Jose Felippe; PINTO, Rodrigo Ambar; JORGE, Jose Marcio Neves; SANTO, Marco Aurelio; BUSTAMANTE-LOPEZ, Leonardo Alfonso; CECCONELLO, Ivan; NAHAS, Sergio CarlosFactors associated with increased intra-abdominal pressure such as chronic cough, morbid obesity, and constipation may be related to pelvic floor dysfunction. In this study, we compared anorectal manometry values and clinical data of class II and III morbidly obese patients referred to bariatric surgery with that of non-obese patients. We performed a case-matched study between obese patients referred to bariatric surgery and non-obese patients without anorectal complaints. The groups were matched by age and gender. Men and nulliparous women with no history of abdominal or anorectal surgery were included in the study. Anorectal manometry was performed by the stationary technique, and clinical evaluation was based on validated questionnaires. Mean age was 44.8 +/- 12.5 years (mean +/- SD) in the obese group and 44.1 +/- 11.8 years in the non-obese group (p = 0.829). In the obese group, 65.4% of patients had some degree of fecal incontinence. Mean squeeze pressure was significantly lower in obese than in non-obese patients (155.6 +/- 64.1 vs. 210.1 +/- 75.9 mmHg, p = 0.004), and there was no significant difference regarding mean rest pressure in obese patients compared to non-obese ones (63.7 +/- 23.1 vs. 74.1 +/- 21.8 mmHg, p = 0.051). There were no significant differences in anorectal manometry values between continent and incontinent obese patients. The prevalence of fecal incontinence among obese patients was high regardless of age, gender, and body mass index. Anal squeeze pressure was significantly lower in obese patients compared to non-obese controls.
- Administration of an Anal Bulking Agent With Polyacrylate-Polyalcohol Copolymer Particles Versus Endoanal Electrical Stimulation With Biofeedback for the Management of Mild and Moderate Anal Incontinence: A Randomized Prospective Study(2022) CORREA NETO, Isaac J. F.; PINTO, Rodrigo A.; BRANDAO, Debora G.; BATISTA, Patricia A.; BUSTAMANTE-LOPEZ, Leonardo A.; CECCONELLO, Ivan; NAHAS, Sergio C.BACKGROUND: There are few treatment options for mild-to-moderate anal incontinence with isolated internal anal sphincter defects or anal incontinence without muscle damage. Less-invasive techniques are generally favored. OBJECTIVE: To compare the results between the use of an anal bulking agent with polyacrylate-polyalcohol copolymer particles and endoanal electrical stimulation with biofeedback in patients with mild or moderate anal incontinence. DESIGN: This was a prospective parallel-group, single-institution, randomized clinical trial. SETTINGS: This study was conducted in an ambulatory setting at the Colorectal Physiology Service of the Hospital das Clinicas, Medical School, University of Sao Paulo. PATIENTS: This study included patients who had anal incontinence for >6 months with isolated internal anal sphincter muscle damage or absence of anatomical defects in the anorectal sphincter complex. INTERVENTIONS: Anal bulking agent and endoanal electrical stimulation with biofeedback. MAIN OUTCOME MEASURES: The primary outcome measure was the Cleveland Clinic Florida Fecal Incontinence Score, and the secondary outcome measures included quality of life, recommended procedures, and anorectal manometry. RESULTS: There were no significant between-group differences in mean age, sex, BMI, stool consistency, and Cleveland Clinic Florida Fecal Incontinence Score (p = 0.20) at baseline. After 12 months, the Cleveland Clinic Florida Fecal Incontinence Score was found to be significantly improved in patients treated with the bulking agent compared to those treated with electrical stimulation (mean, 6.2 vs 9.2; p = 0.002), though the anorectal manometry parameters did not change significantly. The mean anal Cleveland Clinic Florida Fecal Incontinence Score declined by 4.2 points in the bulking agent group compared to a decline of 0.8 in the electrical stimulation group (mean difference in decline: 3.4 points; 95% CI, 1.2-5.5). Quality-of life evaluation showed similar results between groups comparing baseline parameters with 12-month follow-up. LIMITATIONS: The short follow-up period of 1 year, atypical method of biofeedback, and unmatched baseline in some of the quality-of-life scales between the 2 groups limited this study. CONCLUSIONS: In patients with mild or moderate anal incontinence, the Cleveland Clinic Florida Fecal Incontinence Score significantly improved in the bulking agent with polyacrylate-polyalcohol copolymer group compared with the endoanal electrical stimulation with biofeedback group.
- Efficacy of 3-Dimensional Endorectal Ultrasound for Staging Early Extraperitoneal Rectal Neoplasms(2017) PINTO, Rodrigo Ambar; CORREA NETO, Isaac Jose Felippe; NAHAS, Sergio Carlos; NAHAS, Caio Sergio Rizkalah; MARQUES, Carlos Frederico Sparapan; RIBEIRO JUNIOR, Ulysses; KAWAGUTI, Fabio Shiguehissa; CECCONELLO, IvanBACKGROUND: Adequate oncologic staging of rectal neoplasia is important for treatment and prognostic evaluation of the disease. Diagnostic methods such as endorectal ultrasound can assess rectal wall invasion and lymph node involvement. OBJECTIVE: The purpose of this study was to correlate findings of 3-dimensional endorectal ultrasound and pathologic diagnosis of extraperitoneal rectal tumors with regard to depth of rectal wall invasion, lymph node involvement, percentage of rectal circumference involvement, and tumor extension. DESIGN: Consecutive patients with extraperitoneal rectal tumors were prospectively assessed by 3-dimensional endorectal ultrasound blind to other staging methods and pathologic diagnosis. PATIENTS: Patients who underwent endorectal ultrasound followed by surgery were included in the study. SETTINGS: The study was conducted at a single academic institution. MAIN OUTCOME MEASURES: Sensitivity, specificity, positive and negative predictive values, area under curve, and. coefficient between 3-dimensional endorectal ultrasound and pathologic diagnosis were determined. Intraclass correlation coefficient was calculated for tumor extension and percentage of rectal wall involvement. RESULTS: Forty-four patients (27 women; mean age = 63.5 years) were evaluated between September 2010 and June 2014. Most lesions were malignant (72.7%). For depth of submucosal invasion, 3-dimensional endorectal ultrasound showed sensitivity of 77.3%, specificity of 86.4%, positive predictive value of 85.0%, a negative predictive value of 79.2%, and an area under curve of 0.82. The weighted. coefficient for depth of rectal wall invasion staging was 0.67, and there was no agreement between 3-dimensional endorectal ultrasound and pathologic diagnosis for lymph node involvement (kappa = -0.164). Intraclass correlation coefficient for lesion extension and percentage of rectal circumference involvement were 0.45 and 0.66. A better correlation between 3-dimensional endorectal ultrasound and pathologic diagnosis was observed in tumors <5 cm and with <50% of rectal wall involvement. LIMITATIONS: The relatively small sample size of patients with early rectal lesions referred directly for surgery could represent a potential selection bias. CONCLUSIONS: Three-dimensional endorectal ultrasound was effective for determining rectal wall invasion and lesion extension in tumors <5 cm and with <50% of rectal wall invasion but was limited for detecting lymph node involvement in early rectal lesions.
bookPart Preparo de cólon nas cirurgias eletivas e de emergência(2023) PINTO, Rodrigo Ambar; CORRêA NETO, Isaac José FelippebookPart Cirurgia paliativa(2015) PINTO, Rodrigo Ambar; CORRêA NETO, Isaac José Felippe; D'ALESSANDRO, Maria Perez SoaresconferenceObject EFFICACY OF BIOFEEDBACK ASSOCIATED TO ELECTRO-STIMULATION FOR FECAL INCONTINENCE: A PILOT STUDY IN A UNIVERSITY HOSPITAL IN BRAZIL.(2017) PINTO, R.; BATISTA, P.; BRANDAO, D.; TANAKA, C.; CORREA NETO, I.; BUSTAMANTE-LOPEZ, L.; CAMARGO, M.; CECCONELLO, I.; NAHAS, S.conferenceObject ARE THE RESULTS OF MAGNIFYING CHROMOENDOCOPY EVALUATION OF EXTRA PERITONEAL RECTAL TUMORS COMPARABLE TO ENDORECTAL THREE- DIMENSIONAL ULTRASOUND? STUDY BASED ON THE PATHOLOGIC COMPARISON.(2015) PINTO, R.; KAWAGUTI, F.; NETO, I. Correa; NAHAS, S.; NAHAS, C.; MARQUES, C.; RIBEIRO JUNIOR, U.; CECCONELLO, I.