Manuel C. Vallejo Jr., M.D., D.M.D., FASA

Manuel C. Vallejo Jr. M.D., D.M.D., FASA

Professor & Associate Chair, Department of Anesthesiology

Department: Department of Anesthesiology
Business Phone: (904) 244-3080
Business Email: Manuel.Vallejo@jax.ufl.edu
Appointments and Locations

Board Certifications

  • Anesthesiology

Clinical Profile

Specialties
  • Anesthesiology
  • Obstetric Anesthesiology
Interests
  • Clinical Special Interests: Obstetric Anesthesiology; Quality Assurance
  • Research Special Interests: Labor Analgesia; Labor Epidural Analgesia; Cesarean Delivery; Medical Education

Publications

2025
Efficacy of Prophylactic Policy-Driven Tranexamic Acid Administration during Cesarean Delivery in a Rural Healthcare Setting.
Southern medical journal.118(3):196-200[DOI] 10.14423/SMJ.0000000000001796.[PMID] 40031771.
PubMed·Publisher's Site
2025
Rate of AI-Generated Text in Medical School Applicants' Personal Comments Essays.
Journal of general internal medicine.40(8):1936-1937[DOI] 10.1007/s11606-024-09247-y.[PMID] 39653995.
PubMed·Publisher's Site
2024
American Society of Anesthesiologists 2023 Guidance on Neurologic Complications of Neuraxial Analgesia/Anesthesia in Obstetrics.
Anesthesiology.140(6):1235-1236[DOI] 10.1097/ALN.0000000000004967.[PMID] 38578973.
PubMed·Publisher's Site
2024
Evidence-based clinical practice guidelines on postdural puncture headache: a consensus report from a multisociety international working group.
Regional anesthesia and pain medicine.49(7):471-501[DOI] 10.1136/rapm-2023-104817.[PMID] 37582578.
23 citations·PubMed·Publisher's Site
2023
Consensus Practice Guidelines on Postdural Puncture Headache From a Multisociety, International Working Group: A Summary Report.
JAMA network open.6(8):e2325387-[DOI] 10.1001/jamanetworkopen.2023.25387.[PMID] 37581893.
29 citations·PubMed·Publisher's Site
2023
Factors Associated With the Acceptance of Military Applicants to a U.S. Allopathic Medical School.
Military medicine.188(11-12):e3652-e3656[DOI] 10.1093/milmed/usad152.[PMID] 37192213.
PubMed·Publisher's Site
2023
Identifying Gender-Related Differences in Graduate Medical Education with the Use of a Web-Based Professionalism Monitoring Tool.
Southern medical journal.116(5):395-399[DOI] 10.14423/SMJ.0000000000001555.[PMID] 37137472.
PubMed·Publisher's Site
2022
Improving Residency Applicant Personal Statements by Decreasing Hired Contractor Involvement.
Journal of graduate medical education.14(5):526-528[DOI] 10.4300/JGME-D-22-00226.1.[PMID] 36274760.
12 citations·PubMed·Publisher's Site
2022
Post-dural puncture headache diagnosis and management.
Best practice & research. Clinical anaesthesiology.36(1):179-189[DOI] 10.1016/j.bpa.2022.01.002.[PMID] 35659954.
12 citations·PubMed·Publisher's Site
2022
Virtual interviewing in the COVID-19 era: A survey of graduate program directors.
Journal of dental education.86(5):535-542[DOI] 10.1002/jdd.12848.[PMID] 35580990.
11 citations·PubMed·Publisher's Site
2021
A Comparative Study of Braided versus Barbed Suture for Cystotomy Repair.
Research and reports in urology.13():793-798[DOI] 10.2147/RRU.S330586.[PMID] 34805012.
1 citations·PubMed·Publisher's Site
2021
Factors Associated with Acceptance of Repeat MCAT Test Takers into a West Virginian Allopathic Medical School.
Southern medical journal.114(12):801-806[DOI] 10.14423/SMJ.0000000000001331.[PMID] 34853858.
PubMed·Publisher's Site
2021
Randomized trial of transversus abdominis plane block with liposomal bupivacaine after cesarean delivery with or without intrathecal morphine.
Journal of clinical anesthesia.75():110527-[DOI] 10.1016/j.jclinane.2021.110527.[PMID] 34626927.
15 citations·PubMed·Publisher's Site
2021
The influence of medical insurance on obstetrical care.
Journal of healthcare risk management : the journal of the American Society for Healthcare Risk Management.41(1):16-21[DOI] 10.1002/jhrm.21451.[PMID] 33094546.
6 citations·PubMed·Publisher's Site
2020
Independent risk factors for chronic illicit substance use during pregnancy.
Journal of opioid management.16(5):351-356[DOI] 10.5055/jom.2020.0590.[PMID] 33226092.
2 citations·PubMed·Publisher's Site
2020
Transversus Abdominis Plane Block With Liposomal Bupivacaine for Pain After Cesarean Delivery in a Multicenter, Randomized, Double-Blind, Controlled Trial.
Anesthesia and analgesia.131(6):1830-1839[DOI] 10.1213/ANE.0000000000005075.[PMID] 32739962.
56 citations·PubMed·Publisher's Site
2019
Hospital Spiritual Care Can Complement Graduate Medical Trainee Well-Being.
Advances in medicine.2019():8749351-[DOI] 10.1155/2019/8749351.[PMID] 31886315.
2 citations·PubMed·Publisher's Site
2019
Knowledge and Attitudes of Health Care Providers Toward Transgender Patients Within a Rural Tertiary Care Center.
Transgender health.4(1):24-34[DOI] 10.1089/trgh.2018.0050.[PMID] 30891503.
30 citations·PubMed·Publisher's Site
2019
Perioperative risk factors for postoperative respiratory failure.
Journal of perioperative practice.29(3):49-53[DOI] 10.1177/1750458918788978.[PMID] 30035690.
16 citations·PubMed·Publisher's Site
2019
Preeclampsia Induced Liver Dysfunction Complicated by Disseminated Intravascular Coagulopathy and Placental Abruption: A Case Report and Review of the Literature.
Case reports in anesthesiology.2019():4305849-[DOI] 10.1155/2019/4305849.[PMID] 31080676.
2 citations·PubMed·Publisher's Site
2019
Pro-Con Debate: Nitrous Oxide for Labor Analgesia.
BioMed research international.2019():4618798-[DOI] 10.1155/2019/4618798.[PMID] 31531352.
17 citations·PubMed·Publisher's Site
2019
Rate of Plagiarism in Personal Comments Essays of Applicants to a US Allopathic Medical School: an Observational Study.
Journal of general internal medicine.34(11):2329-2330[DOI] 10.1007/s11606-019-05243-9.[PMID] 31388907.
2 citations·PubMed·Publisher's Site
2018
An online web-based assessment tool to monitor graduate medical trainee professionalism and supervision.
International journal of medical education.9():173-174[DOI] 10.5116/ijme.5b1e.21ca.[PMID] 29936492.
PubMed·Publisher's Site
2018
Old Ways Do Not Open New Doors: Norepinephrine for First-Line Treatment of Spinal Hypotension.
Anesthesia and analgesia.126(6):1809-1811[DOI] 10.1213/ANE.0000000000002491.[PMID] 29762220.
4 citations·PubMed·Publisher's Site
2017
An open-label randomized controlled clinical trial for comparison of continuous phenylephrine versus norepinephrine infusion in prevention of spinal hypotension during cesarean delivery.
International journal of obstetric anesthesia.29():18-25[DOI] 10.1016/j.ijoa.2016.08.005.[PMID] 27720613.
71 citations·PubMed·Publisher's Site
2017
Independent risk factors for surgical site infection after cesarean delivery in a rural tertiary care medical center.
Journal of anesthesia.31(1):120-126[DOI] 10.1007/s00540-016-2266-2.[PMID] 27734126.
11 citations·PubMed·Publisher's Site
2017
More perfect - in reply.
International journal of obstetric anesthesia.31():108-109[DOI] 10.1016/j.ijoa.2017.04.012.[PMID] 28623090.
1 citations·PubMed·Publisher's Site
2016
Aprepitant: A Novel Medicaton in the Prevention of Postoperative Nausea and Vomiting.
The West Virginia medical journal.112(6):20-4[DOI] .[PMID] 29368823.
1 citations·PubMed·Publisher's Site
2016
Increasing operating room efficiency through electronic medical record analysis.
Journal of perioperative practice.26(5):106-13[DOI] .[PMID] 27400488.
6 citations·PubMed·Publisher's Site
2016
SOAP Delivers: Options for Labor Pain.
Anesthesia and analgesia.122(4):1223-[DOI] 10.1213/ANE.0000000000001138.[PMID] 26991627.
1 citations·PubMed·Publisher's Site
2015
Chronic headache and backache are long-term sequelae of unintentional dural puncture in the obstetric population.
Journal of clinical anesthesia.27(3):201-6[DOI] 10.1016/j.jclinane.2014.07.008.[PMID] 25483233.
46 citations·PubMed·Publisher's Site
2014
Anesthetic considerations for the morbid obese parturient.
International anesthesiology clinics.52(3):132-47[DOI] 10.1097/AIA.0000000000000024.[PMID] 24946047.
3 citations·PubMed·Publisher's Site
2014
Preface: Obstetric anesthesia update, Volume 1--treatment protocols.
International anesthesiology clinics.52(2):vi-[DOI] 10.1097/AIA.0000000000000013.[PMID] 24667453.
PubMed·Publisher's Site
2014
The use of cognitive aid checklist leading to successful treatment of malignant hyperthermia in an infant undergoing cranioplasty.
Anesthesia and analgesia.118(6):1387-[DOI] 10.1213/ANE.0000000000000156.[PMID] 24842184.
24 citations·PubMed·Publisher's Site
2013
Anesthetic care of parturients with single ventricle physiology.
Journal of clinical anesthesia.25(5):417-423[DOI] 10.1016/j.jclinane.2012.08.003.[PMID] 23965211.
9 citations·PubMed·Publisher's Site
2013
Epidural catheter placement in morbidly obese parturients with the use of an epidural depth equation prior to ultrasound visualization.
TheScientificWorldJournal.2013():695209-[DOI] 10.1155/2013/695209.[PMID] 23983645.
7 citations·PubMed·Publisher's Site
2013
Maternal outcomes in women supplemented with a high-protein drink in labour.
The Australian & New Zealand journal of obstetrics & gynaecology.53(4):369-74[DOI] 10.1111/ajo.12079.[PMID] 23551108.
13 citations·PubMed·Publisher's Site
2012
Aprepitant plus ondansetron compared with ondansetron alone in reducing postoperative nausea and vomiting in ambulatory patients undergoing plastic surgery.
Plastic and reconstructive surgery.129(2):519-526[DOI] 10.1097/PRS.0b013e31822b6932.[PMID] 21987042.
43 citations·PubMed·Publisher's Site
2012
Efficacy of the bilateral ilioinguinal-iliohypogastric block with intrathecal morphine for postoperative cesarean delivery analgesia.
TheScientificWorldJournal.2012():107316-[DOI] 10.1100/2012/107316.[PMID] 23304075.
20 citations·PubMed·Publisher's Site
2012
Maternal and cord serum cytokine changes with continuous and intermittent labor epidural analgesia: a randomized study.
TheScientificWorldJournal.2012():607938-[DOI] 10.1100/2012/607938.[PMID] 22629160.
16 citations·PubMed·Publisher's Site
2012
Perioperative dental injury at a tertiary care health system: An eight-year audit of 816,690 anesthetics.
Journal of healthcare risk management : the journal of the American Society for Healthcare Risk Management.31(3):25-32[DOI] 10.1002/jhrm.20093.[PMID] 22359260.
6 citations·PubMed·Publisher's Site
2012
Regional anesthesia considerations for awake endotracheal intubation and prevention and management of dental injuries.
International anesthesiology clinics.50(1):1-12[DOI] 10.1097/AIA.0b013e318218f651.[PMID] 22227419.
2 citations·PubMed·Publisher's Site
2011
Cesarean delivery in a parturient with syringomyelia and worsening neurological symptoms.
Journal of clinical anesthesia.23(8):653-6[DOI] 10.1016/j.jclinane.2011.03.007.[PMID] 22137520.
4 citations·PubMed·Publisher's Site
2011
Dexmedetomidine for an awake fiber-optic intubation of a parturient with Klippel-Feil syndrome, Type I Arnold Chiari malformation and status post released tethered spinal cord presenting for repeat cesarean section.
Clinics and practice.1(3):e57-[DOI] 10.4081/cp.2011.e57.[PMID] 24765318.
8 citations·PubMed·Publisher's Site
2011
The use of thromboelastography for the peripartum management of a patient with platelet storage pool disorder.
International journal of obstetric anesthesia.20(2):173-7[DOI] 10.1016/j.ijoa.2010.09.014.[PMID] 21168326.
9 citations·PubMed·Publisher's Site
2011
Ultrasound guided epidural analgesia for labor in a patient with an intrathecal baclofen pump.
International journal of obstetric anesthesia.20(4):370-2[DOI] 10.1016/j.ijoa.2011.06.009.[PMID] 21840204.
12 citations·PubMed·Publisher's Site
2010
Ultrasound decreases the failed labor epidural rate in resident trainees.
International journal of obstetric anesthesia.19(4):373-8[DOI] 10.1016/j.ijoa.2010.04.002.[PMID] 20696564.
89 citations·PubMed·Publisher's Site
2009
A 5-year audit of accidental dural punctures, postdural puncture headaches, and failed regional anesthetics at a tertiary-care medical center.
TheScientificWorldJournal.9():715-22[DOI] 10.1100/tsw.2009.94.[PMID] 19649510.
6 citations·PubMed·Publisher's Site
2009
Anesthetic management of a parturient with fetal sacrococcygeal teratoma and mirror syndrome complicated by elevated hCG and subsequent hyperthyroidism.
Journal of clinical anesthesia.21(7):521-4[DOI] 10.1016/j.jclinane.2008.11.012.[PMID] 20006261.
11 citations·PubMed·Publisher's Site
2009
Aprepitant in a multimodal approach for prevention of postoperative nausea and vomiting in high-risk patients: is there such a thing as "too many modalities"?
TheScientificWorldJournal.9():291-9[DOI] 10.1100/tsw.2009.34.[PMID] 19412558.
9 citations·PubMed·Publisher's Site
2009
Bilateral fetal hydrothorax requiring intrauterine fetal thoracoamniotic shunts: anesthetic considerations and management.
TheScientificWorldJournal.9():435-40[DOI] 10.1100/tsw.2009.64.[PMID] 19526182.
PubMed·Publisher's Site
2009
Transdermal scopolamine patch in addition to ondansetron for postoperative nausea and vomiting prophylaxis in patients undergoing ambulatory cosmetic surgery.
Journal of clinical anesthesia.21(4):249-52[DOI] 10.1016/j.jclinane.2008.08.017.[PMID] 19502023.
21 citations·PubMed·Publisher's Site
2008
Nursing and family-member assistance during labor epidural placement: a matter of safety.
International journal of obstetric anesthesia.17(2):190-1[DOI] 10.1016/j.ijoa.2007.09.008.[PMID] 18308551.
1 citations·PubMed·Publisher's Site
2008
The incidence of maternal fever during labor is less with intermittent than with continuous epidural analgesia: a randomized controlled trial.
International journal of obstetric anesthesia.17(2):123-9[DOI] 10.1016/j.ijoa.2007.07.006.[PMID] 18295470.
27 citations·PubMed·Publisher's Site
2007
Anesthetic management of the morbidly obese parturient.
Current opinion in anaesthesiology.20(3):175-80[DOI] .[PMID] 17479016.
37 citations·PubMed·Publisher's Site
2007
Desflurane versus sevoflurane for laparoscopic gastroplasty in morbidly obese patients.
Journal of clinical anesthesia.19(1):3-8[DOI] .[PMID] 17321919.
41 citations·PubMed·Publisher's Site
2007
Eliminating postoperative nausea and vomiting in outpatient surgery with multimodal strategies including low doses of nonsedating, off-patent antiemetics: is "zero tolerance" achievable?
TheScientificWorldJournal.7():959-77[DOI] .[PMID] 17619778.
22 citations·PubMed·Publisher's Site
2007
Epidural labor analgesia: continuous infusion versus patient-controlled epidural analgesia with background infusion versus without a background infusion.
The journal of pain.8(12):970-5[DOI] .[PMID] 17686658.
35 citations·PubMed·Publisher's Site
2007
Routine multimodal antiemesis including low-dose perphenazine in an ambulatory surgery unit of a university hospital: a 10-year history. Supplement to: Eliminating postoperative nausea and vomiting in outpatient surgery with multimodal strategies including low doses of nonsedating, off-patent antiemetics: is "zero tolerance" achievable?
TheScientificWorldJournal.7():978-86[DOI] .[PMID] 17619779.
13 citations·PubMed·Publisher's Site
2006
A simple preanesthesia dental examination.
Anesthesiology.104(1):212-3[DOI] .[PMID] 16394726.
4 citations·PubMed·Publisher's Site
2006
Blurred vision as the only symptom of a positive epidural test dose.
Anesthesia and analgesia.102(3):973-4[DOI] .[PMID] 16492873.
3 citations·PubMed·Publisher's Site
2006
Preemptive analgesia with bupivacaine for segmental mastectomy.
Regional anesthesia and pain medicine.31(3):227-32[DOI] .[PMID] 16701188.
24 citations·PubMed·Publisher's Site
2006
Successful vaginal delivery for a parturient with complete aortic coarctation.
Journal of clinical anesthesia.18(4):300-3[DOI] .[PMID] 16797434.
4 citations·PubMed·Publisher's Site
2005
A parturient with neurofibromatosis type 2: anesthetic and obstetric considerations for delivery.
International journal of obstetric anesthesia.14(4):332-5[DOI] .[PMID] 16140520.
4 citations·PubMed·Publisher's Site
2005
Bupivacaine versus L-bupivacaine for labor analgesia via combined spinal-epidural: a randomized, double-blinded study.
Journal of clinical anesthesia.17(2):91-5[DOI] .[PMID] 15809123.
4 citations·PubMed·Publisher's Site
2005
Failed regional anesthesia with reduced spinal bupivacaine dosage in a parturient with achondroplasia presenting for urgent cesarean section.
International journal of obstetric anesthesia.14(2):175-8[DOI] .[PMID] 15795154.
21 citations·PubMed·Publisher's Site
2005
Nitrous oxide anxiolysis for elective cesarean section.
Journal of clinical anesthesia.17(7):543-8[DOI] .[PMID] 16297755.
6 citations·PubMed·Publisher's Site
2005
Oral herpes simplex reactivation after intrathecal morphine: a prospective randomized trial in an obstetric population.
Anesthesia and analgesia.100(5):1472-1476[DOI] 10.1213/01.ANE.0000153013.34129.A7.[PMID] 15845709.
23 citations·PubMed·Publisher's Site
2004
Amniotic fluid embolism with second trimester pregnancy termination: a case report.
Canadian journal of anaesthesia = Journal canadien d'anesthesie.51(2):139-44[DOI] .[PMID] 14766690.
21 citations·PubMed·Publisher's Site
2004
Induction of labor with oxytocin increases cesarean section rate as compared with oxytocin for augmentation of spontaneous labor in nulliparous parturients controlled for lumbar epidural analgesia.
Journal of clinical anesthesia.16(6):411-4[DOI] .[PMID] 15567643.
11 citations·PubMed·Publisher's Site
2004
Piriformis syndrome in a patient after cesarean section under spinal anesthesia.
Regional anesthesia and pain medicine.29(4):364-7[DOI] .[PMID] 15305258.
11 citations·PubMed·Publisher's Site
2004
Prospective randomized, controlled study of postoperative pain after titanium silicone rubber clip or Silastic ring tubal occlusion.
Contraception.69(2):145-50[DOI] .[PMID] 14759620.
6 citations·PubMed·Publisher's Site
2003
Should alpha-agonists be used as first line management of spinal hypotension?
International journal of obstetric anesthesia.12(4):243-5[DOI] .[PMID] 15321450.
12 citations·PubMed·Publisher's Site
2002
Accidental spinal analgesia in the presence of a lumboperitoneal shunt in an obese parturient receiving enoxaparin therapy.
Anesthesia and analgesia.95(2):441-3, table of contents[DOI] .[PMID] 12145068.
12 citations·PubMed·Publisher's Site
2002
Plasma lidocaine concentrations are higher in twin compared to singleton newborns following epidural anesthesia for Cesarean delivery.
Canadian journal of anaesthesia = Journal canadien d'anesthesie.49(7):701-5[DOI] .[PMID] 12193489.
2 citations·PubMed·Publisher's Site
2002
Propofol-ketamine versus propofol-fentanyl for outpatient laparoscopy: comparison of postoperative nausea, emesis, analgesia, and recovery.
Journal of clinical anesthesia.14(6):426-31[DOI] .[PMID] 12393110.
17 citations·PubMed·Publisher's Site
2002
Thrombophilia, preeclampsia, and fetal demise: a case report.
Journal of clinical anesthesia.14(6):449-51[DOI] .[PMID] 12393115.
PubMed·Publisher's Site
2001
Chorioamnionitis, not epidural analgesia, is associated with maternal fever during labour.
Canadian journal of anaesthesia = Journal canadien d'anesthesie.48(11):1122-6[DOI] .[PMID] 11744590.
24 citations·PubMed·Publisher's Site
2001
Effect of epidural analgesia with ambulation on labor duration.
Anesthesiology.95(4):857-61[DOI] .[PMID] 11605924.
41 citations·PubMed·Publisher's Site
2001
Periosteal entrapment of an epidural catheter in the intrathecal space.
Anesthesia and analgesia.92(6):1532-4[DOI] .[PMID] 11375840.
12 citations·PubMed·Publisher's Site
2000
Improved bowel function after gynecological surgery with epidural bupivacaine-fentanyl than bupivacaine-morphine infusion.
Canadian journal of anaesthesia = Journal canadien d'anesthesie.47(5):406-11[DOI] .[PMID] 10831195.
8 citations·PubMed·Publisher's Site
2000
Postdural puncture headache: a randomized comparison of five spinal needles in obstetric patients.
Anesthesia and analgesia.91(4):916-20[DOI] .[PMID] 11004048.
102 citations·PubMed·Publisher's Site
2000
Uniport soft-tip, open-ended catheters versus multiport firm-tipped close-ended catheters for epidural labor analgesia: a quality assurance study.
Journal of clinical anesthesia.12(2):89-93[DOI] .[PMID] 10818320.
24 citations·PubMed·Publisher's Site
1999
Post partum creatine phosphokinase and its muscle-brain isoenzyme elevation and transient Q-wave in a patient with idiopathic hypertrophic subaortic stenosis.
International journal of obstetric anesthesia.8(2):131-4[DOI] .[PMID] 15321157.
1 citations·PubMed·Publisher's Site
1965
Perforation of the gallbladder in the aged.
The West Virginia medical journal.61(10):279-82[DOI] .[PMID] 5213402.
1 citations·PubMed·Publisher's Site

Office Information

Academic Office
655 West 8th Street
2nd Floor, Clinical Center
Jacksonville, FL 32209
(904) 244-3080
 Manuel.Vallejo@jax.ufl.edu
Administrative Manager
 Nicole Kesslering
(904) 244-3080
Nicole.kesslering@jax.ufl.edu

Education

Medical Degree
1992 · West Virginia University School of Medicine, Morgantown, WV, USA
Internship
1993 · West Virginia University School of Medicine, Morgantown, WV, USA
Anesthesiology Residency
1996 · University of Pittsburgh Medical Center, Pittsburgh, PA, USA