Publications by authors named "Richard Horowitz"

Three patients with relapsing and remitting borreliosis, babesiosis, and bartonellosis, despite extended anti-infective therapy, were prescribed double-dose dapsone combination therapy (DDDCT) for 8 weeks, followed by one or several two-week courses of pulsed high-dose dapsone combination therapy (HDDCT). We discuss these patients' cases to illustrate three important variables required for long-term remission. First, diagnosing and treating active co-infections, including and were important.

View Article and Find Full Text PDF

Twenty-five patients with relapsing and remitting Borreliosis, Babesiosis, and bartonellosis despite extended anti-infective therapy were prescribed double-dose dapsone combination therapy (DDDCT), followed by one or several courses of High Dose Dapsone Combination Therapy (HDDCT). A retrospective chart review of these 25 patients undergoing DDDCT therapy and HDDCT demonstrated that 100% improved their tick-borne symptoms, and patients completing 6-7 day pulses of HDDCT had superior levels of improvement versus 4-day pulses if was present. At the completion of treatment, 7/23 (30.

View Article and Find Full Text PDF

Lyme disease and associated co-infections are increasing worldwide and approximately 20% of individuals develop chronic Lyme disease (CLD)/Post-Treatment Lyme Disease Syndrome (PTLDS) despite early antibiotics. A seven- to eight-week protocol of double dose dapsone combination therapy (DDDCT) for CLD/PTLDS results in symptom remission in approximately 50% of patients for one year or longer, with published culture studies indicating higher doses of dapsone demonstrate efficacy against resistant biofilm forms of . The purpose of this study was, therefore, to evaluate higher doses of dapsone in the treatment of resistant CLD/PTLDS and associated co-infections.

View Article and Find Full Text PDF

Three patients with multi-year histories of relapsing and remitting Lyme disease and associated co-infections despite extended antibiotic therapy were each given double-dose dapsone combination therapy (DDD CT) for a total of 7-8 weeks. At the completion of therapy, all three patients' major Lyme symptoms remained in remission for a period of 25-30 months. A retrospective chart review of 37 additional patients undergoing DDD CT therapy (40 patients in total) was also performed, which demonstrated tick-borne symptom improvements in 98% of patients, with 45% remaining in remission for 1 year or longer.

View Article and Find Full Text PDF

Apicomplexan parasites of the genus cause babesiosis in humans and animals worldwide. Human babesiosis is a predominantly zoonotic disease transmitted by hard ticks that is of increasing health concern in the USA and many other countries. Microscopic examination of stained blood smears, detection of serum antibodies by immunoassays and identification of parasite nucleic acid in blood by qPCR and fluorescence in situ hybridization (FISH) are some methods available for diagnosing babesiosis.

View Article and Find Full Text PDF

Objective: Lyme disease is a tick-borne, multisystemic disease caused by Borrelia burgdorferi. Standard treatments for early Lyme disease include short courses of oral antibiotics but relapses often occur after discontinuation of treatment. Several studies have suggested that ongoing symptoms may be due to a highly antibiotic resistant form of B.

View Article and Find Full Text PDF

Purpose: Asymptomatic or minimally symptomatic infection with COVID-19 can result in silent transmission to large numbers of individuals, resulting in expansion of the pandemic with a global increase in morbidity and mortality. New ways of screening the general population for COVID-19 are urgently needed along with novel effective prevention and treatment strategies.

Hypothesis: A hypothetical three-part prevention, diagnostic, and treatment approach based on an up-to-date scientific literature review for COVID-19 is proposed.

View Article and Find Full Text PDF

Apicomplexan parasites of the genus cause babesiosis in humans and animals. The microscopic examination of stained blood smears, detection of serum antibodies by immunoassays, and PCR-based identification of parasite nucleic acid in blood are common laboratory methods for diagnosing babesiosis. The present study evaluated a commercially available genus-specific fluorescence in situ hybridization (FISH) test for detecting parasites in blood smears.

View Article and Find Full Text PDF

Purpose: Infection with COVID-19 potentially can result in severe outcomes and death from "cytokine storm syndrome", resulting in novel coronavirus pneumonia (NCP) with severe dyspnea, acute respiratory distress syndrome (ARDS), fulminant myocarditis and multiorgan dysfunction with or without disseminated intravascular coagulation. No published treatment to date has been shown to adequately control the inflammation and respiratory symptoms associated with COVID-19, apart from oxygen therapy and assisted ventilation. We evaluated the effects of using high dose oral and/or IV glutathione in the treatment of 2 patients with dyspnea secondary to COVID-19 pneumonia.

View Article and Find Full Text PDF

Purpose: We collected data from an online survey of 200 of our patients, which evaluated the efficacy of dapsone (diaminodiphenyl sulfone, ie, DDS) combined with other antibiotics and agents that disrupt biofilms for the treatment of chronic Lyme disease/post-treatment Lyme disease syndrome (PTLDS). We also collected aggregate data from direct retrospective chart review, including laboratory testing for Lyme, other infections, and associated tick-borne coinfections. This helped us to determine the frequency of exposure to other infections/coinfections among a cohort of chronically ill Lyme patients, evaluate the efficacy of newer "persister" drug regimens like DDS, and determine how other infections and tick-borne coinfections may be contributing to the burden of chronic illness leading to resistant symptomatology.

View Article and Find Full Text PDF

We present a precision medical perspective to assist in the definition, diagnosis, and management of Post Treatment Lyme Disease Syndrome (PTLDS)/chronic Lyme disease. PTLDS represents a small subset of patients treated for an erythema migrans (EM) rash with persistent or recurrent symptoms and functional decline. The larger population with chronic Lyme disease is less understood and well defined.

View Article and Find Full Text PDF

Bone marrow transplantation and stem cell therapies have been used for the treatment of common variable immunodeficiency (CVID) and other life-threatening medical disorders. This is the first known case report in the medical literature describing improvement of both Lyme disease and CVID with human embryonic stem cell therapy.

View Article and Find Full Text PDF

Purpose: Lyme disease is spreading worldwide, with multiple species causing a broad range of clinical symptoms that mimic other illnesses. A validated Lyme disease screening questionnaire would be clinically useful for both providers and patients. Three studies evaluated such a screening tool, namely the Horowitz Multiple Systemic Infectious Disease Syndrome (MSIDS) Questionnaire.

View Article and Find Full Text PDF

The examination of organs and tissues macroscopically in order to establish a diagnosis and to select relevant portions for subsequent microscopic examination and special studies is fundamental to the practice of pathology. In the autopsy room, in the surgical pathology laboratory and, very often, in the operating room, gross pathology is the essential, underlying basis of morphologic diagnosis. Diagnoses on the basis of gross examination can be accurately made in as many as 90 % of specimens (Grossman IW, A primer of gross pathology, Charles C Thomas, 1972).

View Article and Find Full Text PDF

Economic imperatives in health care financing are compelling a variety of mergers, acquisitions, integrations, and other forms of amalgamation. As hospitals merge, their pathology practices are merging. Physicians are forming clinically integrated groups, both with and without hospitals.

View Article and Find Full Text PDF

Despite growing research on the treatment of severe mental illness, little attention is devoted to the internal experience of therapists who strain to ward off disillusionment and despair as they try to hold out hope and reconfigure expectations over a course of therapy that may extend many years. The first-person literature of recovery points repeatedly to the importance of maintaining faith in the face of resignation, yet much less appears in the professional literature about the struggles of therapists who live with apprehensions about the meaning of their work. The relative disappearance of commentary about this phenomenon, a legacy of the biological revolution in psychiatry, shields practitioners from self-examination and prevents a more penetrating look at the inner workings of psychotherapy in the treatment of long-term mental illness.

View Article and Find Full Text PDF

A survey of pathology training programs about current operations and attitudes revealed that the autopsy is underused in medical student and pathology resident teaching, is inadequately reported, often does not have a dedicated faculty, is not championed by pathologists or clinicians, is not valued as a performance measure, and is barely used as a resource for medical research. The autopsy can be reestablished as a teaching tool and performance measure, but this will require that the autopsy be recognized as a credible and valuable medical procedure. The autopsy must then be funded; and new sources of both volume and funding, such as incorporating autopsies into payment schedules, into clinical trials, and in pay-for-performance initiatives, must be solicited.

View Article and Find Full Text PDF

In 3 surveys during the past 10 years, community hospital pathologists were asked what they want, need, or look for when employing a pathologist and, more specifically, what skills and knowledge a newly minted pathologist should have to be successful in the community practice of pathology. The most recent survey, done in spring of 2005, cited surgical pathology diagnosis, frozen section diagnosis, gross dissection, cytology, and fine-needle aspiration as essentials in anatomic pathology. For clinical pathology, knowledge of clinical medicine and test strategies that use the laboratory for clinical problem solving was paramount.

View Article and Find Full Text PDF