Paul G Harch

Paul G Harch
Louisiana State University Health Sciences Center New Orleans | LSUHSC · Department of Medicine

MD

About

53
Publications
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865
Citations

Publications

Publications (53)
Article
Full-text available
A 78-year-old man with dementia experienced waxing and waning of symptoms with changes in altitude as he traveled from his home in the Rocky Mountains to lower elevations and back. To replicate the improvement in his symptoms with travel to lower elevations (higher pressure), the patient was treated with a near-identical repressurization in a hyper...
Article
Full-text available
Background Studies of hyperbaric oxygen therapy (HBOT) treatment of mild traumatic brain injury persistent postconcussion syndrome in military and civilian subjects have shown simultaneous improvement in posttraumatic stress disorder (PTSD) or PTSD symptoms, suggesting that HBOT may be an effective treatment for PTSD. This is a systematic review an...
Article
Full-text available
Introduction Oxygen toxicity has been defined as acute central nervous system (CNS), acute pulmonary, and chronic pulmonary oxygen toxicity. This study identifies acute and chronic CNS oxygen toxicity under 2.0 atmospheres absolute (ATA) pressure of oxygen. Methods: The authors’ medical records from September 29, 1989 to January 20, 2023 and corres...
Article
Full-text available
Mild Traumatic Brain Injury (mild TBI)/concussion is a common sports injury, especially common in football players. Repeated concussions are thought to lead to long-term brain damage including chronic traumatic encephalopathy (CTE). With the worldwide growing interest in studying sport-related concussion the search for biomarkers for early diagnosi...
Article
Full-text available
Background Mild traumatic brain injury results in over 15% of patients progressing to Persistent Postconcussion Syndrome, a condition with significant consequences and limited treatment options. Hyperbaric oxygen therapy has been applied to Persistent Postconcussion Syndrome with conflicting results based on its historical understanding/definition...
Article
Full-text available
Harch Paul 1 Department of Medicine, Section of Emergency and Hyperbaric Medicine, Louisiana State University Health Sciences Center, New Orleans, LA Zhong X, Tao X, Tang Y, Chen R. The outcomes of hyperbaric oxygen therapy to retrieve hypoxemia of severe novel coronavirus pneumonia: first case report. Zhonghua Hanghai Yixue yu Gaoqiya Yixue Zazhi....
Article
Full-text available
Persistent postconcussion syndrome (PPCS) after mild traumatic brain injury (mTBI) is a significant public health and military problem for which there is limited treatment evidence. The aim of this study was to determine whether forty 150 kPa hyperbaric oxygen therapies (HBOTs) can improve symptoms and cognitive function in subjects with the PPCS o...
Article
Full-text available
A 58-year-old female was diagnosed with Alzheimer's dementia (AD) which was rapidly progressive in the 8 months prior to initiation of hyperbaric oxygen therapy (HBOT). ¹⁸Fluorodeoxyglucose (¹⁸FDG) positron emission tomography (PET) brain imaging demonstrated global and typical metabolic deficits in AD (posterior temporal-parietal watershed and cin...
Chapter
Full-text available
Hyperbaric oxygen (HBO) therapy has been used in a number of conditions characterized by global ischemia (as opposed to focal ischemia of stroke), and anoxia, and leading to impairment of consciousness. Conditions such as coma due to brain injury and anoxia associated with drowning and hanging are discussed under the following headings: (1) pathoph...
Chapter
Cerebral palsy is a chronic neurological disorder that can be due to several causes of brain damage in utero, in the perinatal period, or postnatally. Hyperbaric oxygen has been shown to be useful in treating children with cerebral palsy. This topic is discussed under the following headings.
Data
Contribution of Moderate TBI to Composite Data.
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List and Schedule of Psychometric Measures, When Administered, and Domain Measured
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Association of Improvements in Sleep and Medication with Changes in NeuroPsych and SPECT Variables
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Approach of SPECT MCP and CV at baseline, post-1 HBOT, and post-40 HBOTs to Control Subjects’ MCP and CV
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Re-Analysis of All Variables by Green Pass/Fail
Article
Full-text available
Mild traumatic brain injury (TBI) persistent post-concussion syndrome (PPCS) and post-traumatic stress disorder (PTSD) are epidemic in United States Iraq and Afghanistan War veterans. Treatment of the combined diagnoses is limited. The aim of this study is to assess safety, feasibility, and effectiveness of hyperbaric oxygen treatments (HBOT) for m...
Article
Full-text available
A 2-year-old girl experienced cardiac arrest after cold water drowning. Magnetic resonance imaging (MRI) showed deep gray matter injury on day 4 and cerebral atrophy with gray and white matter loss on day 32. Patient had no speech, gait, or responsiveness to commands on day 48 at hospital discharge. She received normobaric 100% oxygen treatment (2...
Article
Full-text available
Hyperbaric oxygen therapy is a treatment for wounds in any location and of any duration that has been misunderstood for 353 years. Since 2008 it has been applied to the persistent post-concussion syndrome of mild traumatic brain injury by civilian and later military researchers with apparent conflicting results. The civilian studies are positive an...
Article
Full-text available
This is a preliminary report on the safety and efficacy of 1.5 ATA hyperbaric oxygen therapy (HBOT) in military subjects with chronic blast-induced mild to moderate traumatic brain injury (TBI)/post-concussion syndrome (PCS) and post-traumatic stress disorder (PTSD). Sixteen military subjects received 40 1.5 ATA/60 min HBOT sessions in 30 days. Sym...
Data
Side by side Pre and Post HBOT processed transverse SPECT brain blood flow images. Pre-HBOT scan is on the left and post-HBOT on the right. Click on either image to initialize movie. Images were obtained on a Picker Prism 3000 triple-head gamma camera. Both scans were processed by technologist PJT: 25 mCi of ECD was prepared with the standard manuf...
Article
Full-text available
A 25-year-old male military veteran presented with diagnoses of post concussion syndrome and post traumatic stress disorder three years after loss of consciousness from an explosion in combat. The patient underwent single photon emission computed tomography brain blood flow imaging before and after a block of thirty-nine 1.5 atmospheres absolute hy...
Article
This controlled, prospective, randomized porcine study tests the hypothesis that high-dose hyperbaric oxygen (HDHBO2) compared with normobaric oxygen (NBO2) or standard-dose hyperbaric oxygen (SDHBO2), improves return of sustained spontaneous circulation (ROSC) after a normothermic, normobaric, 25-min, non-intervened-upon cardiopulmonary arrest. Th...
Article
In the present experiment we use a rat model of traumatic brain injury to evaluate the ability of low-pressure hyperbaric oxygen therapy (HBOT) to improve behavioral and neurobiological outcomes. The study employed an adaptation of the focal cortical contusion model. 64 Male Long-Evans rats received unilateral cortical contusion and were tested in...
Article
Full-text available
Introduction: Hyperbaric oxygen therapy (HBOT) remains a controversial and misunderstood therapy, especially when applied to chronic neuro-logical conditions and autism. This interview explores the science behind these applications. Methods: HBOT is defined as a pharmaceutical and its pharmacologic effects are reviewed in the context of the author'...
Article
Neurologists may be consulted to diagnose and treat the severe neurologic injuries that can occur in divers with decompression illness (DCI). Subclinical bubbles form during normal diving activity. DCI, a diffuse and multifocal process, results when bubbles cause symptoms by exerting mass effect in tissues, or obstructing venous or arterial flow. T...
Article
Full-text available
Dear Sirs: We read the recent contribution to your esteemed journal by Nuthall, et al with extreme disappointment. Unfortunately, this article distorts the true complication rate of low-pressure hyperbaric oxygen therapy (LPHBOT) in the treatment of pediatric neurological conditions. Noticeably missing from the paper is an estimate of the frequency...
Article
The key announcement today is about an evidence-based medicine study that will combine two treatments that have been found to be effective in treating autistic children mercury detoxification and Hyperbaric oxygen. The IHMA Foundation is collaborating with the American Board of Clinical Metal Toxicology (ABCMT) under the supervision of the Oklahoma...

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