2023
Clinical Utility of Ileal Motility in Children With Defecation Disorders and Children With Chronic Intestinal Pseudo‐Obstruction
Colliard K, Nurko S, Flores A, Rodriguez L. Clinical Utility of Ileal Motility in Children With Defecation Disorders and Children With Chronic Intestinal Pseudo‐Obstruction. Journal Of Pediatric Gastroenterology And Nutrition 2023, 77: 327-331. PMID: 37229777, DOI: 10.1097/mpg.0000000000003841.Peer-Reviewed Original ResearchConceptsAntroduodenal manometryDefecation disordersPostprandial responseGroup BChronic Intestinal Pseudo-ObstructionIntestinal Pseudo-ObstructionNormal postprandial responseModerate agreementSmall bowel motilityLogistic regression analysisOstomy closurePseudo-ObstructionBowel motilityRetrospective reviewIleal motilityIndication groupGroup AClinical utilityYounger agePatientsMotility patternsPhase IIIMotor complexDisordersManometryClinical utility of colonic low‐amplitude propagating contractions in children with functional constipation
Colliard K, Patel D, Nurko S, Rodriguez L. Clinical utility of colonic low‐amplitude propagating contractions in children with functional constipation. Neurogastroenterology & Motility 2023, 35: e14543. PMID: 37096634, DOI: 10.1111/nmo.14543.Peer-Reviewed Original ResearchConceptsFunctional constipationLogistic regressionClinical utilityPediatric functional constipationConstipation groupRetrospective reviewColonic enemaClinical significanceLAPCConstipationNeuromuscular integrityLarger studyPatientsOutcomesChildrenAssociationContractionHigher proportionHAPCsGroupRegressionIleostomyEnema
2022
Diverting Ileostomy in Children With Functional Constipation
Rodriguez L, Colliard K, Nurko S, Flores A, Buchmiller TL. Diverting Ileostomy in Children With Functional Constipation. Journal Of Pediatric Gastroenterology And Nutrition 2022, 75: 578-583. PMID: 35897140, DOI: 10.1097/mpg.0000000000003579.Peer-Reviewed Original ResearchConceptsFunctional constipationOstomy closurePediatric functional constipationInstitutional review board approvalReview board approvalEnema failureColon motilityFurther surgeryInvasive evaluationRetrospective studySurgical interventionOstomyBoard approvalUseful interventionLarger studyConstipationSuccessful responsePatientsSurgeryChildrenRole of CMDemographicsAssociationInterventionIndications
2021
Can Propofol Be Used to Assess the Presence of the Rectoanal Inhibitory Reflex During Anorectal Manometry Studies?
Arbizu RA, Amicangelo M, Rodriguez L, Nurko S. Can Propofol Be Used to Assess the Presence of the Rectoanal Inhibitory Reflex During Anorectal Manometry Studies? Journal Of Pediatric Gastroenterology And Nutrition 2021, 74: 33-37. PMID: 34478251, DOI: 10.1097/mpg.0000000000003283.Peer-Reviewed Original ResearchConceptsIntra-anal pressuresRectoanal inhibitory reflexAnorectal manometryInhibitory reflexAbsent rectoanal inhibitory reflexInternal anal sphincter relaxationNormal rectoanal inhibitory reflexAnal sphincter relaxationAnorectal manometry studyBalloon distentionIAS relaxationSpinal neuropathyIntractable constipationObstructive symptomsSphincter relaxationProspective studyAnesthesia inductionManometry studiesPatientsPropofolDisease repairLatency timeConstipationAnesthesiaReflexMelanosis Coli Is Not Associated with Colonic Dysmotility Nor Severity of Pediatric Functional Constipation
Chen JJ, Kitzia Colliard RN, Nurko S, Rodriguez L. Melanosis Coli Is Not Associated with Colonic Dysmotility Nor Severity of Pediatric Functional Constipation. Digestive Diseases And Sciences 2021, 67: 3922-3928. PMID: 34379221, DOI: 10.1007/s10620-021-07191-z.Peer-Reviewed Original ResearchConceptsPediatric functional constipationMelanosis coliFunctional constipationColonic manometryColonic motilityMarker of severityTreatment of constipationRate of surgeryColonic dysmotilityColonic biopsiesMedian agePediatric patientsManometry resultsMedication historyMethodsProspective studyPatient groupResultsA totalSurgical historyPathologic resultsConstipationPatientsCatheter positionDemographic dataSubsequent needSignificant differences
2020
Diagnostic and clinical utility of the wireless motility capsule in children: A study in patients with functional gastrointestinal disorders
Rodriguez L, Heinz N, Colliard K, Amicangelo M, Nurko S. Diagnostic and clinical utility of the wireless motility capsule in children: A study in patients with functional gastrointestinal disorders. Neurogastroenterology & Motility 2020, 33: e14032. PMID: 33184926, DOI: 10.1111/nmo.14032.Peer-Reviewed Original ResearchConceptsWireless motility capsuleColon transitGastrointestinal symptomsCapsule retentionMotility capsuleLower gastrointestinal symptomsRadiopaque marker studiesFunctional gastrointestinal symptomsFunctional gastrointestinal disordersNuclear medicine gastricGastrointestinal motilityGastrointestinal disordersTransit abnormalitiesClinical utilityGastric transitSymptomsLarger studyPatientsInterpretation agreementMarker studiesMotility parametersStudy interpretationCROMSignificant correlationChildrenEvaluation of Fecal Incontinence in Pediatric Functional Constipation
Morera C, Nurko S, Rodriguez L. Evaluation of Fecal Incontinence in Pediatric Functional Constipation. Journal Of Pediatric Gastroenterology And Nutrition 2020, 72: 361-365. PMID: 33560756, DOI: 10.1097/mpg.0000000000002978.Peer-Reviewed Original ResearchConceptsPediatric functional constipationFecal incontinenceFunctional constipationColonic manometryMedian anal resting pressureAnal resting pressureMore patientsResting pressureAbnormal studiesConventional therapyMale genderTreatment outcomesClinical dataConstipationNormal studiesTherapy responseMeal responseIncontinencePatientsMultivariate analysisMotility studiesTherapyNormal armLow responseManometryLong‐term Use of Bisacodyl in Pediatric Functional Constipation Refractory to Conventional Therapy
Bonilla S, Nurko S, Rodriguez L. Long‐term Use of Bisacodyl in Pediatric Functional Constipation Refractory to Conventional Therapy. Journal Of Pediatric Gastroenterology And Nutrition 2020, 71: 288-291. PMID: 32459741, DOI: 10.1097/mpg.0000000000002795.Peer-Reviewed Original ResearchConceptsConventional therapyLong-term usePediatric constipationFunctional constipationSide effectsTertiary care children's hospitalFrequency of BMPediatric functional constipationBowel movement frequencyLong-term followLong-term treatmentMedian doseRescue therapyMedian durationStandard therapyOsmotic laxativesRetrospective reviewPediatric populationChildren's HospitalStimulant laxativesMedian numberConstipationPatientsTreatment durationFavorable response
2018
Same day versus next day antroduodenal manometry results in children with upper gastrointestinal symptoms: A prospective study
Arbizu RA, Nurko S, Heinz N, Amicangelo M, Rodriguez L. Same day versus next day antroduodenal manometry results in children with upper gastrointestinal symptoms: A prospective study. Neurogastroenterology & Motility 2018, 31: e13521. PMID: 30537362, DOI: 10.1111/nmo.13521.Peer-Reviewed Original ResearchConceptsSmall bowel motility indexDay 1Day 2Motility indexAbnormal studiesCatheter placementNormal studiesPhase IIIStudy interpretationChallenge phaseUpper gastrointestinal symptomsProportion of patientsGastrointestinal symptomsManometry resultsPostprandial responseProspective studyManometry parametersPatientsStudy parametersMotor complexSame dayAntrumDaysAnesthesiaCatheterThoracoscopic esophagomyotomy for achalasia in the pediatric population: A retrospective cohort study
Duggan EM, Nurko S, Smithers CJ, Rodriguez L, Fox VL, Fishman SJ. Thoracoscopic esophagomyotomy for achalasia in the pediatric population: A retrospective cohort study. Journal Of Pediatric Surgery 2018, 54: 572-576. PMID: 30121126, DOI: 10.1016/j.jpedsurg.2018.07.013.Peer-Reviewed Original ResearchConceptsRetrospective cohort studyThoracoscopic esophagomyotomyPneumatic dilationCohort studyPediatric populationLength of stayInitial symptom reliefInvasive esophagomyotomyPreoperative dilationPostoperative painRecurrent symptomsMucosal injuryLaparoscopic approachSymptom reliefMedian lengthStandard treatmentEndoscopic guidanceOpen procedureEsophagomyotomyRare diseasePatientsAchalasiaEffective procedureDilationFundoplication
2017
Ileostomy Prolapse in Children with Intestinal Dysmotility
Sparks EA, Velazco CS, Fullerton BS, Fisher JG, Khan FA, Hall AM, Jaksic T, Rodriguez L, Modi BP. Ileostomy Prolapse in Children with Intestinal Dysmotility. Gastroenterology Research And Practice 2017, 2017: 7182429. PMID: 29075290, PMCID: PMC5624168, DOI: 10.1155/2017/7182429.Peer-Reviewed Original ResearchIntestinal dysmotilityIleostomy prolapseStoma prolapseManometric findingsIntestinal manometryTime of ileostomyLog-rank testLogistic regression modelsIntestinal motilityPrimary outcomeRetrospective reviewProlapse rateSingle institutionPrimary diagnosisDysmotilityProlapsePatientsMultivariate analysisClinical diagnosisGreater riskNormal motilityDiagnosisIleostomyManometryUnlikely groupProspective evaluation of same day versus next day colon manometry results in children with medical refractory constipation
Arbizu RA, Nurko S, Heinz N, Amicangelo M, Rodriguez L. Prospective evaluation of same day versus next day colon manometry results in children with medical refractory constipation. Neurogastroenterology & Motility 2017, 29 PMID: 28317231, PMCID: PMC5466533, DOI: 10.1111/nmo.13050.Peer-Reviewed Original ResearchConceptsDay 1Day 2Normal studiesAbnormal studiesProportion of patientsSame dayStudy interpretationColon manometryGastrocolonic responseRefractory constipationProspective evaluationManometry parametersMotility indexPatientsChallenge phaseAbstractTextAnesthesiaCatheterStudy parametersColonoscopyDaysConstipationHAPCsManometryStudy
2015
Effect of anesthesia on gastroesophageal reflux in children: a study using BRAVO wireless pH study measurements
Rodriguez L, Morley-Fletcher A, Souza A, Rosengaus L, Nurko S. Effect of anesthesia on gastroesophageal reflux in children: a study using BRAVO wireless pH study measurements. Neurogastroenterology & Motility 2015, 27: 1553-1558. PMID: 26264213, PMCID: PMC4624481, DOI: 10.1111/nmo.12652.Peer-Reviewed Original ResearchConceptsEffects of anesthesiaGastroesophageal refluxBravo wirelessStudy interpretationAnesthesia effectProportion of studiesRole of anesthesiaGER parametersCapsule placementAnesthesiaCutoff valueStudy durationAbstractTextSignificant increaseChildrenRefluxSignificant changesStudy measurementsDaysHoursBlock timePatientsStudyProportion
2012
Factors associated with successful decrease and discontinuation of antegrade continence enemas (ACE) in children with defecation disorders: a study evaluating the effect of ACE on colon motility
Rodriguez L, Nurko S, Flores A. Factors associated with successful decrease and discontinuation of antegrade continence enemas (ACE) in children with defecation disorders: a study evaluating the effect of ACE on colon motility. Neurogastroenterology & Motility 2012, 25: 140-e81. PMID: 23035840, PMCID: PMC3546133, DOI: 10.1111/nmo.12018.Peer-Reviewed Original ResearchConceptsAntegrade continence enemaColon manometryACE decreaseContinence enemaColon motilityDefecation disordersOlder ageReview of childrenGastrocolonic responseMotility indexOnly predictorMultivariate analysisDiscontinuationAbstractTextEnemaOutcomesPatientsSignificant increaseChildrenSuccessful decreaseDisordersAgeHAPCsMotilityCM changesInternal anal sphincter relaxation associated with bisacodyl‐induced colonic high amplitude propagating contractions in children with constipation: a colo‐anal reflex?
Rodriguez L, Siddiqui A, Nurko S. Internal anal sphincter relaxation associated with bisacodyl‐induced colonic high amplitude propagating contractions in children with constipation: a colo‐anal reflex? Neurogastroenterology & Motility 2012, 24: 1023-e545. PMID: 22757618, PMCID: PMC3465462, DOI: 10.1111/j.1365-2982.2012.01965.x.Peer-Reviewed Original ResearchConceptsHigh-amplitude peristaltic contractionsInternal anal sphincter relaxationAnal sphincter relaxationIAS relaxationSphincter relaxationAnal residual pressureManometry tracingsDefecation disordersConstipated childrenAnal relaxationHepatic flexureResting pressureDistal colonPeristaltic contractionsColonAbstractTextConstipationContraction propagationReflexChildrenImportant proportionContractionMost casesPatientsBisacodyl
2008
Botulinum toxin for the treatment of chronic constipation in children with internal anal sphincter dysfunction
Irani K, Rodriguez L, Doody DP, Goldstein AM. Botulinum toxin for the treatment of chronic constipation in children with internal anal sphincter dysfunction. Pediatric Surgery International 2008, 24: 779-783. PMID: 18443801, DOI: 10.1007/s00383-008-2171-3.Peer-Reviewed Original ResearchConceptsInternal anal sphincter dysfunctionAnal sphincter dysfunctionIntrasphincteric injectionSphincter dysfunctionIntractable constipationPediatric patientsBotulinum toxinIAS dysfunctionAbnormal anorectal manometryRectoanal inhibitory reflexTreatment of constipationDuration of effectChronic constipationPostoperative incontinenceRefractory constipationInhibitory reflexAnorectal manometryResting pressureRetrospective reviewBotox injectionHirschsprung's diseaseConstipationEffective treatmentPatientsDysfunction
2006
Evaluation and Management of Intractable Constipation in Children
Rodriguez L, Flores A, Doody D. Evaluation and Management of Intractable Constipation in Children. Seminars In Colon And Rectal Surgery 2006, 17: 29-37. DOI: 10.1053/j.scrs.2006.02.005.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsIntractable constipationPediatric age groupAdditional surgical interventionUse of laxativesSevere intractable constipationRefractory constipationStool softenersYounger patientsPediatric gastroenterologistsPossible surgerySurgical interventionConstipationDaily livingSmall percentageSevere formDiet managementDays of schoolGastroenterologists' officesAge groupsNormal activityChildren's qualityBehavioral modificationFrequent visitsPatientsChildren