About

Ryan Dalton, MD, is a board-certified anesthesiologist and associate professor of Anesthesiology at The Ohio State University College of Medicine, practicing at The Ohio State University Wexner Medical Center. His clinical expertise includes diagnosing and treating conditions related to perioperative pain management, anesthesia for complex surgical procedures, and critical care support. He is committed to providing high-quality, compassionate care and emphasizes honest communication with his patients. Ryan Dalton collaborates with a multidisciplinary team to ensure personalized care tailored to each patient's needs and values. In addition to his clinical responsibilities, Dr. Dalton is passionate about education and mentoring the next generation of healthcare providers. His academic role involves training future anesthesiologists, contributing to the advancement of medical practice through his teaching and mentorship. His educational background includes a Doctor of Medicine degree from Ohio State University College of Medicine, a residency in Anesthesiology at Ohio State University Wexner Medical Center, and a preliminary internship in Medicine at Riverside Methodist Hospital. He is certified by the American Board of Anesthesiology and the American Heart Association, with ongoing engagement in research and collaboration with medical device, research, and drug companies to improve patient care.

Research topics

• Internal medicine
• Medicine
• Anesthesia
• Cardiology
• Surgery
• Radiology
• Intensive care medicine

Selected publications

• Con: Is the Radial Artery the Ideal Location for Invasive Blood Pressure Monitoring in Cardiac Surgery?

  Journal of Cardiothoracic and Vascular Anesthesia · 2024-10-09 · 1 citations

  article
  PublisherDOI

• DUPLICATE: The Role of ECMO in the Anesthetic Management of SVC Syndrome: Is it time to use a scoring system?

  Journal of Cardiothoracic and Vascular Anesthesia · 2022-02-01

  articleOpen accessSenior author
  PublisherDOI

• The Role of Extracorporeal Membrane Oxygenation in the Anesthetic Management of Superior Vena Cava Syndrome: Is it Time to Use a Scoring System?

  Journal of Cardiothoracic and Vascular Anesthesia · 2021 · 5 citations

  Senior authorCorresponding
  • Medicine
  • Surgery
  • Radiology
  PublisherDOI

• Intraoperative Hypotension–Physiologic Basis and Future Directions

  Journal of Cardiothoracic and Vascular Anesthesia · 2021 · 23 citations

  Senior authorCorresponding
  • Medicine
  • Anesthesia
  • Intensive care medicine
  PublisherDOI

• Pro: Routine Use of the Hypotension Prediction Index (HPI) in Cardiac, Thoracic, and Vascular Surgery

  Journal of Cardiothoracic and Vascular Anesthesia · 2020 · 8 citations

  • Medicine
  • Anesthesia
  • Cardiology
  PublisherDOI

• Polyneuropathy and myopathy in the elderly.

  PubMed · 2012-01-01 · 9 citations

  articleOpen access1st authorCorresponding

  Critical illness polyneuropathy and myopathy is associated with intensive care unit therapies; it is an independent predictor of mortality and will be increasingly affecting the practice of critical care. Most patients with this illness are over 50 years of age, and as our population demographics shift in favor of an aging population, physicians must be aware that this malady will have a rising incidence in the perioperative period. Intensivists, anesthesiologists, surgeons, and geriatricians/internists must remain vigilant. Here we present a concise overview of critical illness polyneuropathy and myopathy, its diagnosis, associations, and possible interventions.

  PublisherOA PDF

• Giant Cerebral Aneurysm Clipping in Combination with Coronary Artery Bypass Graft

  Anesthesia & Analgesia · 2006-12-13 · 1 citations

  letter

  To the Editor: A 63-year-old woman presented with double vision and intermittent headaches. A cerebral angiogram showed a 27-mm globular wide-based basilar apex aneurysm. Preoperative cardiac catheterization revealed severe stenosis involving the left anterior descending (LAD) (80%) and the right coronary artery (90%). The LAD lesion required surgical repair rather than stenting. The plan was to proceed with the combined surgical approach under deep hypothermic cardiac arrest. The patient was monitored with arterial, central venous, and pulmonary arterial catheters, as well as electroencephalogram, brainstem auditory evoked potentials, bladder/nasal temperature, intracranial pressure via a lumbar drain, and transesophageal echocardiography. Anesthesia was induced with fentanyl, sodium thiopental, and vecuronium. Anesthesia was maintained with isoflurane and IV infusions of fentanyl and midazolam. We administered mannitol and hyperventilated to a Paco2 of 30 mm Hg, allowed the temperature to decrease to 34°C, and drained spinal fluid to maintain a cerebral perfusion pressure >60 mm Hg. Craniotomy and exposure of the aneurysm preceded median sternotomy. Aprotinin was administrated for antifibrinolysis. The patient was placed on cardiopulmonary bypass, with arterial blood pressure maintained at approximately 60 mm Hg. Dexamethasone and sodium thiopental were used for additional cerebral protection. Distal coronary anastamoses were performed while cooling to a nasopharyngeal temperature of 18°C. Once the patient was deeply hypothermic, bypass was stopped and the neurosurgery team dissected and clipped the aneurysm within 39 min. Cardiopulmonary bypass resumed, and the proximal coronary anastomosis were completed during rewarming. The patient was easily weaned off bypass with one defibrillation. Protamine was administered. The total bypass time was 107 min. Craniotomy closure followed chest closure. An intraoperative cerebral angiogram showed no residual aneurysm. The patient did well until the fourth postoperative day, when an undiagnosed pneumothorax from a central line placed postoperatively led to a prolonged hypoxic event, with a poor neurological outcome unrelated to the surgery. This is a unique case that required the cooperation among many teams including cardiac and neuroanesthesia, nursing, cardiac surgery, neurosurgery, and critical care. The anesthetic technique was unique in order to involve the two procedures. Except for the postoperative hypoxic event that eventually took the life of the patient, our example would be good for future for similar cases. Bachar Hachwa, MD Department of Anesthesia The Ohio State University [email protected] Michele Walker, MD Anesthesiologist Grant Hospital Columbus, Ohio Ryan Dalton, MD Mark Gerhardt, PhD, MD Sergio D. Bergese, MD Department of Anesthesia The Ohio State University Columbus, Ohio

  PublisherDOI

• Concordance of Porphyromonas gingivalis colonization in families

  Journal of Clinical Microbiology · 1997-02-01 · 57 citations

  articleOpen access

  Periodontitis is a widespread disease that appears to be due to a specific bacterial infection. Several species of bacteria have been investigated as potential pathogens, and particularly strong evidence links the presence of Porphyromonas gingivalis with indicators of periodontitis. Information concerning the transmission of P. gingivalis between human contacts may be important in determining risk factors for disease and developing preventive strategies. A few small studies have provided some evidence of transmission between related individuals, but no large-scale study of families that would reflect the typical transmission of this pathogen in the population has been reported. The purpose of this study was to investigate the transmission of P. gingivalis within randomly selected, extended families. The colonization status of 564 members of multigeneration families was determined, and the degree of concordance observed among members of these families was then compared to that expected to occur based on the prevalence of colonization in the population studied. A PCR assay was used for detection of P. gingivalis. Concordance in colonization was more frequently observed within entire families (P = 0.0000) and for spouses (P < 0.001), children and their mothers (P < 0.001), children and their fathers (P < 0.01), adults and their mothers (P < 0.005), and siblings (P < 0.05) than would be expected if P. gingivalis were randomly distributed in the population studied. Results showed that contact with an infected family member substantially increased the relative risk of colonization in these intrafamilial pairs. This indicates that P. gingivalis is commonly transmitted by contact with an infected family member.

  PublisherOA PDFDOI

Frequent coauthors

• Hamdy Awad

  The Ohio State University Wexner Medical Center

  4 shared

• Michael Essandoh

  The Ohio State University Wexner Medical Center

  3 shared

• Racha Boulos

  3 shared

• Michael S. Firstenberg

  Memorial Medical Center

  2 shared

• Thomas J. Papadimos

  2 shared

• Lori Meyers

  The Ohio State University Wexner Medical Center

  2 shared

• Matthew C. Henn

  Oregon Health & Science University

  2 shared

• Dilip Kothari

  2 shared