2024
High-impact chronic pain in sickle cell disease: insights from the Pain in Sickle Cell Epidemiology Study (PiSCES).
Jagtiani A, Chou E, Gillespie S, Liu K, Krishnamurti L, McClish D, Smith W, Bakshi N. High-impact chronic pain in sickle cell disease: insights from the Pain in Sickle Cell Epidemiology Study (PiSCES). Pain 2024 PMID: 38787626, DOI: 10.1097/j.pain.0000000000003262.Peer-Reviewed Original ResearchHigh-impact chronic painSickle Cell Epidemiology StudyChronic painProportion of daysUS National Pain StrategySickle cell diseaseNational Pain StrategySelf-care activitiesEpidemiological studiesHigher levels of stressMean pain intensityCohort of individualsPain interferenceLevels of stressPhysical functionHealth outcomesHealthcare utilizationPhysical healthPain strategiesPain burdenPain intensityPain diaryCell diseaseDiary daysAffected subgroups
2021
A pilot study of the acceptability, feasibility and safety of yoga for chronic pain in sickle cell disease
Bakshi N, Cooley A, Ross D, Hawkins L, Sullivan M, Astles R, Sinha C, Katoch D, Peddineni M, Gee B, Lane P, Krishnamurti L. A pilot study of the acceptability, feasibility and safety of yoga for chronic pain in sickle cell disease. Complementary Therapies In Medicine 2021, 59: 102722. PMID: 33892094, PMCID: PMC8284565, DOI: 10.1016/j.ctim.2021.102722.Peer-Reviewed Original ResearchConceptsProportion of participantsSafety of yogaChronic painSickle cell diseaseYoga sessionsYoga programED visitsMedian ageCell diseasePart ARetention of participantsFeasibility endpointsPain characteristicsPart BPain diaryAdolescent patientsYoga interventionClinical trialsPatient participantsSafety outcomesPainPilot studyMost participantsStudy assessmentYoga
2020
Prevalence and predictors of chronic pain intensity and disability among adults with sickle cell disease
Matthie N, Jenerette C, Gibson A, Paul S, Higgins M, Krishnamurti L. Prevalence and predictors of chronic pain intensity and disability among adults with sickle cell disease. Health Psychology Open 2020, 7: 2055102920917250. PMID: 32426150, PMCID: PMC7218472, DOI: 10.1177/2055102920917250.Peer-Reviewed Original ResearchChronic pain intensitySickle cell diseasePain intensityCell diseaseChronic painConsistent clinical assessmentPalliative care approachChronic pain impactMiddle-aged adultsPain impactPain catastrophizingClinical assessmentCare approachPsychosocial healthDisability prevalencePsychosocial predictorsYoung womenDiseaseMost participantsDisabilityPainAdultsCatastrophizingPrevalenceAge
2019
Management of Chronic Pain in Adults Living With Sickle Cell Disease in the Era of the Opioid Epidemic
Sinha C, Bakshi N, Ross D, Krishnamurti L. Management of Chronic Pain in Adults Living With Sickle Cell Disease in the Era of the Opioid Epidemic. JAMA Network Open 2019, 2: e194410. PMID: 31125105, PMCID: PMC6632133, DOI: 10.1001/jamanetworkopen.2019.4410.Peer-Reviewed Original ResearchConceptsSickle cell diseaseOpioid epidemicOpioid usePain managementChronic painAlternative therapiesCell diseaseAfrican American race/ethnicityDisease controlVaso-occlusive painPain medication useChronic pain managementSickle cell clinicCurrent opioid epidemicRace/ethnicityOpioid dosingOpioid dosageOpioid prescriptionsAdult patientsMedian ageMedication usePersistent painComprehensive careMAIN OUTCOMEPain
2018
A Qualitative Study of Chronic Pain and Self-Management in Adults with Sickle Cell Disease
Matthie N, Ross D, Sinha C, Khemani K, Bakshi N, Krishnamurti L. A Qualitative Study of Chronic Pain and Self-Management in Adults with Sickle Cell Disease. Journal Of The National Medical Association 2018, 111: 158-168. PMID: 30266214, PMCID: PMC6433553, DOI: 10.1016/j.jnma.2018.08.001.Peer-Reviewed Original ResearchConceptsSickle cell diseaseChronic pain managementChronic painChronic pain experiencePain managementCell diseasePain experienceChronic SCD painGreater QoL impairmentVaso-occlusive painYears of ageSelf-management strategiesSickle cell anemiaSubgroup of adultsSCD painAcute painPersistent painSubstantial morbidityHealthcare utilizationImpaired qualityQoL impairmentPainSCD managementCell anemiaQualitative studyPresence of pain on three or more days of the week is associated with worse patient reported outcomes in adults with sickle cell disease
Bakshi N, Ross D, Krishnamurti L. Presence of pain on three or more days of the week is associated with worse patient reported outcomes in adults with sickle cell disease. Journal Of Pain Research 2018, 11: 313-318. PMID: 29445298, PMCID: PMC5810514, DOI: 10.2147/jpr.s150065.Peer-Reviewed Original ResearchPresence of painSickle cell diseaseChronic SCD painPatient-reported outcomesPain interferenceSCD painMore daysPROMIS scoresChronic painUnadjusted analysesCell diseaseAddiction Clinical Trial Translations Innovations OpportunitiesWorse pain interferenceCore diagnostic criteriaShort-form instrumentEpisodic painPain scoresChronic migraineMajority of daysImpaired qualityProspective studyPhysical functionWorse patientPhysical functioningClinical definitionQuantitative sensory testing is feasible and is well-tolerated in patients with sickle cell disease following a vaso-occlusive episode
Bakshi N, Lukombo I, Belfer I, Krishnamurti L. Quantitative sensory testing is feasible and is well-tolerated in patients with sickle cell disease following a vaso-occlusive episode. Journal Of Pain Research 2018, 11: 435-443. PMID: 29503580, PMCID: PMC5827673, DOI: 10.2147/jpr.s150066.Peer-Reviewed Original ResearchVaso-occlusive episodesQuantitative sensory testingSickle cell diseaseChronic painPain sensitivityCell diseaseSensory testingPainful vaso-occlusive episodesExperience chronic painFeasibility of recruitmentLarge prospective studiesEmergency room visitsExperimental pain sensitivityInherited blood disorderAltered painMedian agePain intensityPediatric patientsRoom visitsProspective studyInpatient hospitalizationSubset of individualsPainPatientsBlood disorders
2017
Psychological Characteristics and Pain Frequency Are Associated With Experimental Pain Sensitivity in Pediatric Patients With Sickle Cell Disease
Bakshi N, Lukombo I, Shnol H, Belfer I, Krishnamurti L. Psychological Characteristics and Pain Frequency Are Associated With Experimental Pain Sensitivity in Pediatric Patients With Sickle Cell Disease. Journal Of Pain 2017, 18: 1216-1228. PMID: 28602692, DOI: 10.1016/j.jpain.2017.05.005.Peer-Reviewed Original ResearchConceptsSickle cell diseaseExperimental pain stimuliExperimental pain sensitivityPain sensitivityPain stimuliChronic painExperimental painCell diseasePsychological characteristicsQuantitative sensory testing methodsPsychological factorsChronic SCD painMechanical temporal summationVaso-occlusive painQuantitative sensory testingSubset of patientsPain-related outcomesStudy of patientsCross-sectional assessmentChildren ages 8SCD painPain burdenPain frequencyPediatric patientsPain processingNovel Metrics in the Longitudinal Evaluation of Pain Data in Sickle Cell Disease
Bakshi N, Smith M, Ross D, Krishnamurti L. Novel Metrics in the Longitudinal Evaluation of Pain Data in Sickle Cell Disease. The Clinical Journal Of Pain 2017, 33: 517-527. PMID: 27584817, DOI: 10.1097/ajp.0000000000000431.Peer-Reviewed Original ResearchConceptsMaximum daily painSickle cell diseasePain intensity dataChronic painCell diseasePain dataInterindividual variationMaximum daily pain scoresPatient-reported end pointsDaily pain scoresPain-free daysInterventional clinical trialsBurden of painPeriod of hospitalizationElectronic pain diaryDiary daysHealth care providersPain burdenPain scoresPain diaryPain intensityDaily painSCD patientsPain trendsClinical trials
2015
Impact of Psychological Covariates on Experimental Pain Sensitivity in Children and Adolescents with SCD
Bakshi N, Lukombo I, Belfer I, Krishnamurti L. Impact of Psychological Covariates on Experimental Pain Sensitivity in Children and Adolescents with SCD. Blood 2015, 126: 985. DOI: 10.1182/blood.v126.23.985.985.Peer-Reviewed Original Research
2014
Feasibility and Tolerability of Quantitative Sensory Testing in Patients with Sickle Cell Disease at the End of a Vasoocclusive Episode
Bakshi N, Lukombo I, Belfer I, Krishnamurti L. Feasibility and Tolerability of Quantitative Sensory Testing in Patients with Sickle Cell Disease at the End of a Vasoocclusive Episode. Blood 2014, 124: 3519. DOI: 10.1182/blood.v124.21.3519.3519.Peer-Reviewed Original ResearchVaso-occlusive episodesQuantitative sensory testingSickle cell diseaseSensory testingCell diseaseVasoocclusive episodesPain intensityAcute vaso-occlusive episodesQST proceduresMapi Research TrustPain Catastrophizing ScalePain Coping InventoryChildren's Somatization InventoryMedian ageChronic painPain interferencePain sensitivityPatient preferencesPain stimuliPain unpleasantnessCold painPROMIS measuresPatient's requestDepressive symptomsThermal pain
2011
Non-Cardiopulmonary Factors Affecting the Six-Minute Walk Distance in Patients with Sickle Cell Disease: Results From the Walk-PHaSST Study
Goel R, Hassell K, Machado R, Barst R, Yovetich N, Kato G, Gordeuk V, Little J, Gibbs J, Schraufnagel D, Girgis R, Rosenzweig E, Morris C, Badesch D, Lanzkron S, Onyekwere O, Nouraie M, Castro O, Sachdev V, Waclawiw M, Woolson R, Goldsmith J, Gladwin M, Krishnamurti L. Non-Cardiopulmonary Factors Affecting the Six-Minute Walk Distance in Patients with Sickle Cell Disease: Results From the Walk-PHaSST Study. Blood 2011, 118: 1074. DOI: 10.1182/blood.v118.21.1074.1074.Peer-Reviewed Original ResearchTR jet velocitySickle cell diseaseSix-minute walk distanceAvascular necrosisMultivariable linear regressionPulmonary hypertensionCell diseasePrimary endpointWalk distanceChronic painSCD patientsSevere genotypeAmerican Thoracic Society guidelinesSix-minute walk testSelf-reported medical historyThoracic Society guidelinesMulti-center studySided p valueGreater predictive valueCardiopulmonary factorsOral sildenafilPain 2NT-proBNPExercise capacityWalk testAssociation of Genetic Variation in the Catechol-O-Methyl Transferase Gene with Pain and Six Minute Walk Distance in Sickle Cell Anemia Patients From the Walk-PHaSST Study
Zhang Y, Zeng Q, Belfer I, Goel R, Porter M, Chu Y, Barst R, Hassell K, Machado R, Goldsmith J, Gladwin M, Krishnamurti L. Association of Genetic Variation in the Catechol-O-Methyl Transferase Gene with Pain and Six Minute Walk Distance in Sickle Cell Anemia Patients From the Walk-PHaSST Study. Blood 2011, 118: 1075. DOI: 10.1182/blood.v118.21.1075.1075.Peer-Reviewed Original ResearchSickle cell diseaseAcute pain crisisChronic painPain crisisPain phenotypesPain rateSCD painSevere painPain sensitivitySingle nucleotide polymorphismsAG genotype carriersChronic pain ratesSickle cell anemia patientsType of painAfrican American patientsGenetic factorsDescription of painLogistic regression analysisLower pain sensitivityCOMT genetic variantsChi-square testMultinomial logistic regression analysisCatechol-O-methyl transferase (COMT) genePain episodesMild pain
2010
Chronic Pain Is An Independent Predictor of Lower 6 Minute Walk Distance In Patients with Sickle Cell Disease: Results From Walk-PHaSST Study
Krishnamurti L, Goel R, Castro O, Barst R, Rosenzweig E, Sachdev V, Machado R, Gibbs S, Little J, Schraufnagel D, Girgis R, Morris C, Badesch D, Lanzkron S, Goldsmith J, Gordeuk V, Kato G, Gladwin M, Hassell K. Chronic Pain Is An Independent Predictor of Lower 6 Minute Walk Distance In Patients with Sickle Cell Disease: Results From Walk-PHaSST Study. Blood 2010, 116: 2658. DOI: 10.1182/blood.v116.21.2658.2658.Peer-Reviewed Original ResearchTricuspid regurgitant velocityAcute pain crisisSickle cell diseasePain crisisChronic painExercise capacityIndependent predictorsClinical trialsCell diseaseAcute sickle cell pain crisisSickle cell pain crisisMultivariable logistic regression analysisSickle cellsAcute pain ratingsHypertension clinical trialsTrials of sildenafilDouble-blind placeboEmergency department visitsGroup of patientsMinute walk distanceWeeks of treatmentNon-drug therapyFuture clinical trialsSignificant lower odds ratioLogistic regression analysisCigarette Smoking Is An Independent Predictor of Chronic Pain In Sickle Cell Patients: Results From the Walk-PHaSST Study
Goel R, Hassell K, Castro O, Barst R, Rosenzweig E, Sachdev V, Machado R, Gibbs S, Little J, Schraufnagel D, Girgis R, Morris C, Badesch D, Lanzkron S, Goldsmith J, Gordeuk V, Kato G, Gladwin M, Krishnamurti L. Cigarette Smoking Is An Independent Predictor of Chronic Pain In Sickle Cell Patients: Results From the Walk-PHaSST Study. Blood 2010, 116: 4804. DOI: 10.1182/blood.v116.21.4804.4804.Peer-Reviewed Original ResearchChronic SCD painSickle cell diseaseTricuspid regurgitant velocitySCD painChronic painPack yearsSmoking historyCigarette smokingCigarette smokersMedical historySCD genotypeSmall single-center studiesSix-minute walk distanceStepwise multivariable logistic regressionMultivariable logistic regression modelEfficacy of sildenafilEnvironmental smoke exposureFormer cigarette smokingMean pack yearsVaso-occlusive painAcute chest syndromeSingle-center studyAbnormal platelet activationMultivariable logistic regressionEffect size