Adjunct Faculty
Adjunct faculty typically have an academic or research appointment at another institution and contribute or collaborate with one or more School of Medicine faculty members or programs.
Adjunct rank detailsLouis Chaptini, MD
Assistant Professor Adjunct of Medicine (Digestive Diseases)DownloadHi-Res Photo
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Titles
Assistant Professor Adjunct of Medicine (Digestive Diseases)
Biography
I graduated from St Joseph University, Beirut, Lebanon in 1998, then completed my training in Internal Medicine and Gastroenterology at UMDNJ/Robert Wood Johnson Medical school. I joined the Digestive Diseases section at Yale in 2012, worked as full time faculty until August 2015. I have two areas of interests, screening for colon cancer and functional bowel diseases. As general gastroenterologist, I treat patients with a wide range of digestive symptoms including reflux, ulcers, irritable bowel syndrome. I currently work at Yale on a part time basis, mainly attending on the inpatient gastroenterology service.
Last Updated on May 22, 2025.
Appointments
Digestive Diseases
Assistant Professor AdjunctPrimary
Other Departments & Organizations
- Digestive Diseases
- Gastroenterology
- Gastroenterology Hospitalist Program
- Internal Medicine
- Metabolic Health & Weight Loss Program
- Yale New Haven Health System
- Yale Ventures
Education & Training
- Fellowship
- UMDNJ/Robert Wood Johnson Medical school (2005)
- Residency
- UMDNJ/Robert Wood Johnson Medical school (2002)
- MD
- St Joseph University, Beirut, Lebanon (1999)
- MD
- St. Joseph University (1998)
Research
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Research at a Glance
Yale Co-Authors
Frequent collaborators of Louis Chaptini's published research.
Publications Timeline
A big-picture view of Louis Chaptini's research output by year.
Loren Laine, MD
Basile Njei, MD, PhD, MPH, FRCP
27Publications
204Citations
Publications
2025
Ulcerative colitis and bullous pemphigoid: Direct association or a medication side effect: A case report.
Haddad G, El Dada A, Sbeih S, Kazzi T, Karam K, Chaptini L. Ulcerative colitis and bullous pemphigoid: Direct association or a medication side effect: A case report. World Journal Of Clinical Cases 2025, 13: 101363. PMID: 40144487, PMCID: PMC11670022, DOI: 10.12998/wjcc.v13.i9.101363.Peer-Reviewed Original ResearchCitationsConceptsBullous pemphigoidUlcerative colitisAssociated with other autoimmune disordersExtraintestinal manifestation of UCAutoimmune blistering skin disorderTreated with mesalamineDiagnosis of BPManifestations of UCDirect immunofluorescence studiesCases of BPTapering prednisoneDevelopment of BPPrednisone therapyClinical responseMale patientsSkin manifestationsExtraintestinal manifestationsLinear IgGAutoimmune disordersDermoepidermal junctionItchy rashWeeks durationEosinophilic spongiosisSkin disordersMesalamineEosinophilic esophagitis manifesting as intractable hiccups in an elderly patient: a case report
Jalloul S, Salem J, Karam K, Chamoun C, Chaptini L. Eosinophilic esophagitis manifesting as intractable hiccups in an elderly patient: a case report. Journal Of Medical Case Reports 2025, 19: 99. PMID: 40045389, PMCID: PMC11884032, DOI: 10.1186/s13256-025-05044-1.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsDiagnosis of eosinophilic esophagitisEosinophilic esophagitisEosinophil infiltrationSymptoms related to esophageal dysfunctionComputed tomography of the chestSymptoms of eosinophilic esophagitisElevated peripheral eosinophil countPeripheral eosinophil countEsophagitis treatmentRefractory hiccupsBackgroundEosinophilic esophagitisConclusionThis caseEsophageal dysfunctionCase reportWeUpper endoscopyFood impactionIntermittent dysphagiaCase reportEndoscopic findingsDistal esophagusElderly patientsEosinophil countEsophageal mucosaComputed tomographyIntractable hiccups
2024
Esophageal damage following left atrial ablation in a patient on dabigatran: adding insult to injury
Jalloul S, Jreij C, Karam K, Salem J, Chaptini L. Esophageal damage following left atrial ablation in a patient on dabigatran: adding insult to injury. European Journal Of Case Reports In Internal Medicine 2024, 11: 004832. PMID: 39372148, PMCID: PMC11451853, DOI: 10.12890/2024_004832.Peer-Reviewed Original ResearchCold snare polypectomy: A closer look at the efficacy and limitations for polyps 10-20 mm in size
Chaptini L, Jalloul S, Karam K. Cold snare polypectomy: A closer look at the efficacy and limitations for polyps 10-20 mm in size. World Journal Of Gastrointestinal Endoscopy 2024, 16: 445-450. PMID: 39155992, PMCID: PMC11325874, DOI: 10.4253/wjge.v16.i8.445.Peer-Reviewed Original ResearchCitations
2019
Gastrointestinal Bleeding
Louis Chaptini and Steven Peikin Critical Care Medicine: Principles of Diagnosis and Management in the Adult, 72, 1192-1209.e5, 2019Chapters
2017
Challenges Faced by US-Trained Gastroenterologists When Pursuing a Medical Career Outside of the USA
Chaptini L. Challenges Faced by US-Trained Gastroenterologists When Pursuing a Medical Career Outside of the USA. Digestive Diseases And Sciences 2017, 62: 3266-3268. PMID: 29064012, DOI: 10.1007/s10620-017-4809-2.Peer-Reviewed Original ResearchCitations
2016
Strongyloidiasis Presenting as Epigastric Pain
Shah S, Chaptini L, Parikh ND. Strongyloidiasis Presenting as Epigastric Pain. The American Journal Of Gastroenterology 2016, 111: 1678. PMID: 27924100, DOI: 10.1038/ajg.2016.435.Peer-Reviewed Case Reports and Technical NotesPhysiology of Weight Regulation
Chaptini L, Peikin S. Physiology of Weight Regulation. 2016, 1-4. DOI: 10.1002/9781119127437.ch102.ChaptersCitationsConceptsCentral nervous systemWeight regulationMain peripheral organsPathogenesis of obesityPeripheral organsFood intakeGastrointestinal systemObesity epidemicMultiple organsNervous systemEnergy intakeMajor deleterious effectsEnergy homeostasisTherapeutic agentsEnergy expenditurePublic healthCentral signalsDeleterious effectsIntakeOrgansPrimary formCurrent understandingObesityPathogenesisPhysiologySloughing Esophagitis: An Atypical Cause of Food Impaction
Shah SA, Cho M, Chaptini L, Parikh N. Sloughing Esophagitis: An Atypical Cause of Food Impaction. ACG Case Reports Journal 2016, 3: e85. PMID: 27807547, PMCID: PMC5062645, DOI: 10.14309/crj.2016.58.Peer-Reviewed Case Reports and Technical NotesCitationsDiagnosis of sessile serrated adenomas/polyps with image-enhanced endoscopy: a systematic review and meta-analysis
Parikh ND, Chaptini L, Njei B, Laine L. Diagnosis of sessile serrated adenomas/polyps with image-enhanced endoscopy: a systematic review and meta-analysis. Endoscopy 2016, 48: 731-739. PMID: 27223636, DOI: 10.1055/s-0042-107592.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsImage-enhanced endoscopyWhite light endoscopyNarrow-band imagingNon-neoplastic lesionsSSA/PsAdenomas/polypsFlexible spectral imaging color enhancementSystematic reviewCorresponding histologic diagnosesSSA/P detection rateSessile serrated adenomas/polypsSerrated adenomas/polypsNon-neoplastic tissuesAppearance of polypsSSA/PNBI studiesPrimary outcomeHistologic diagnosisInclusion criteriaEndoscopic diagnosisHyperplastic polypsSSA/P.Autofluorescence imagingHead comparisonBand imaging
Academic Achievements & Community Involvement
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Honors
honor Howard M. Spiro, MD Digestive Diseases Fellowship Teaching Award
06/15/2015Yale School of Medicine AwardYale School of MedicineDetailsUnited States
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