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Cureus Dec 2020The standard of care for device infection is normally a complete removal of the implantable system, including lead extraction in local or systemic infection cases....
The standard of care for device infection is normally a complete removal of the implantable system, including lead extraction in local or systemic infection cases. Despite the importance of lead extraction techniques, these techniques are complex and have some major risks. Success rates were high, but they are less favorable in patients with several comorbidities. An 80-year-old male presented for device erosion. The patient is known to have several cardiac comorbidities: a transcatheter aortic valve replacement (TAVR), mitral clips for severe aortic stenosis, mitral regurgitation, dual-chamber implantable cardioverter defibrillators (ICD) for secondary prevention. Several weeks ago, he noted tenderness and redness at the site of his device pocket, and his physician, after checking his wound, suggested a possible skin irritation with no systemic infection and started antibiotics treatment. Two weeks later, he noted thinning of the skin around the device with a hematoma and ecchymosis, and slight skin erosion. Strategies for assessment of the wound and pocket cleaning were taken. The strategy was to remove the left-sided device and keep the leads since the patient lately has no elevated inflammatory labs, negative cultures, no fever, nor signs of vegetation on transesophageal echocardiography (TEE) and refused any additional examination as positron emission tomography (PET) scan, and reimplant a new system on the contralateral side. The procedure was divided into two sequences: extracting the device and after one-week implantation of a right-sided new system. In this case, chronic antibiotics were discussable to decrease the recurrence rate, but they did increase the severity of the patient's thrombocytopenia. Despite extraction being the gold standard of treatment in most cases of devices with local and systemic infection, there are some frail patients with several comorbidities where extraction is unbearable due to its major risks and complex procedure. In these specific cases with local infection and device erosion with no signs of any systemic infection, conservative therapy could be a viable option.
PubMed: 33457133
DOI: 10.7759/cureus.12032 -
Alimentary Pharmacology & Therapeutics Nov 2015
Topics: Esophagus; Female; Gastric Juice; Humans; Hydrogen-Ion Concentration; Male; Stomach
PubMed: 26449861
DOI: 10.1111/apt.13392 -
Romanian Journal of Morphology and... 2014Cholesteatoma is a non-neoplastic, keratinizing lesion, characterized by the proliferation of epithelium with aberrant micro-architecture into the middle ear and mastoid... (Review)
Review
Cholesteatoma is a non-neoplastic, keratinizing lesion, characterized by the proliferation of epithelium with aberrant micro-architecture into the middle ear and mastoid cavity. The exact pathogenic molecular mechanisms behind the formation and propagation of cholesteatoma remain unclear. Immunohistochemical examinations of the matrix and perimatrix have considerably improved the knowledge of cholesteatoma pathogenesis. In this review, the current concepts of cholesteatoma pathogenesis are discussed. Currently, the most widely acknowledged pathogenesis of acquired cholesteatoma is the theory that negative pressure, dysfunction of the Eustachian tube, causes a deepening retraction pocket that, when obstructed, desquamated keratin cannot be cleared from the recess, and a cholesteatoma results. Local infection leads to a disturbance of self-cleaning mechanisms, with cell debris and keratinocytes accumulate inside the retraction pocket, and this is followed by an immigration of immune cells, i.e., Langerhans' cells, T-cells, macrophages. There is an imbalance and a vicious circle of epithelial proliferation, keratinocyte differentiation and maturation, prolonged apoptosis, and disturbance of self-cleaning mechanisms. The inflammatory stimulus will induce an epithelial proliferation along with expression of lytic enzymes and cytokines. Bacteria inside the retraction pocket produce some antigens, which will activate different cytokines and lytic enzymes. These cytokines lead to activation and maturing of osteoclasts with the consequence of degradation of extracellular bone matrix and hyperproliferation, bone erosion and finally progression of the disease. Further research is necessary for a better understanding of the pathogenetic mechanisms and to expand the spectrum of therapeutic options.
Topics: Biomarkers; Cell Proliferation; Cholesteatoma; Humans; Inflammation Mediators; Intercellular Signaling Peptides and Proteins; Oxidative Stress
PubMed: 24715159
DOI: No ID Found -
Alimentary Pharmacology & Therapeutics Nov 2015
Topics: Esophagus; Female; Gastric Juice; Humans; Hydrogen-Ion Concentration; Male; Stomach
PubMed: 26449862
DOI: 10.1111/apt.13407 -
Heart Rhythm Jul 2005
Topics: Aged; Calcinosis; Cardiomyopathies; Defibrillators, Implantable; Device Removal; Hematoma; Humans; Male
PubMed: 15992742
DOI: 10.1016/j.hrthm.2005.02.007 -
Cureus Feb 2021Cardiac-implantable electronic device (CIED) infections are associated with significant morbidity and mortality. In this review, we describe the risk factors and... (Review)
Review
OBJECTIVE
Cardiac-implantable electronic device (CIED) infections are associated with significant morbidity and mortality. In this review, we describe the risk factors and pathogenesis of CIED infections and review the rationale and the evidence for the use of antibiotic-eluting envelopes (ABEs) in patients at increased risk for CIED infections.
FINDINGS
The majority of CIED infections are caused by staphylococci that involve generator pocket and occur due to contamination of the device or the pocket tissues at the time of implantation. Clinical trials have shown that extending the duration of post-operative systemic antibacterial therapy is not beneficial in reducing CIED infection rate. However, ABEs that reduce device migration after implantation and provide sustained local delivery of prophylactic antibiotics at the pocket site, may provide benefit in reducing infection. Currently, there are two types of commercially available CIED envelope devices in the United States. The first ABE device (TYRX™, Medtronic Inc., Monmouth Junction, NJ) is composed of a synthetic absorbable mesh envelope that elutes minocycline and rifampin and has been shown to reduce CIED pocket infections in a large multi-center randomized clinical trial. The second ABE device (CanGaroo-G™, Aziyo Biologics, Silver Spring, MD) is composed of decellularized extracellular matrix (ECM) and was originally designed to stabilize the device within the pocket, limiting risk for migration or erosion, and providing a substrate for tissue ingrowth in a preclinical study. This device has shown promising results in a preclinical study with local delivery of gentamicin. Compared with artificial materials, such as synthetic surgical mesh, biologic ECM has been shown to foster greater tissue integration and vascular ingrowth, a reduced inflammatory response, and more rapid clearance of bacteria.
CONCLUSIONS AND RELEVANCE
ABE devices provide sustained local delivery of antibiotics at the generator pocket site and appear beneficial in reducing CIED pocket infections. Given the continued increase in the use of CIED therapy and resultant infectious complications, innovative approaches to infection prevention are critical.
PubMed: 33728111
DOI: 10.7759/cureus.13088 -
American Journal of Otolaryngology 1994Current indications for TT placement are (1) persistent SOM that has not responded to a 6 to 12-week course of medical treatment. This includes full and prophylactic... (Review)
Review
Current indications for TT placement are (1) persistent SOM that has not responded to a 6 to 12-week course of medical treatment. This includes full and prophylactic doses of antimicrobials (and corticosteroids, as indicated); (2) recurrent AOM (at least three episodes in 6 months or four episodes in 12 months) that does not respond to, or recurs after, antimicrobial prophylaxis; (3) complications of AOM such as meningitis, facial nerve paralysis, coalescent mastoiditis, or brain abscess; and (4) complications of eustachian tube dysfunction such as tympanic membrane retraction with hearing loss, ossicular erosion, and/or retraction pocket formation. It must be emphasized that TT placement in children does not "cure" the condition that led to the surgical intervention. Rather, the TT maintains aeration of the middle ear until the child grows and his eustachian tube function normalizes. These recommendations for TT placement are to be regarded as guidelines, not as absolute requirements. They must be applied individually to each patient and his/her unique situation. Certain factors may influence timing of TT placement and lead to modification of the guidelines as they apply to each child.
Topics: Acute Disease; Child; Humans; Middle Ear Ventilation; Otitis Media; Otitis Media with Effusion; Recurrence
PubMed: 8179100
DOI: 10.1016/0196-0709(94)90058-2 -
Gastroenterologia Y Hepatologia Feb 2014Gastroesophageal reflux disease is a highly frequent disorder classically characterized by the presence of heartburn and/or acid regurgitation that improves with drug... (Review)
Review
Gastroesophageal reflux disease is a highly frequent disorder classically characterized by the presence of heartburn and/or acid regurgitation that improves with drug therapy that reduces acid content in the stomach. However, especially in patients with non-erosive disease, response to proton pump inhibitors is unsatisfactory in approximately 1 out of 3 patients, and consequently, in these patients, it is important to establish a definitive diagnosis and an alternative therapeutic strategy. In the last few years, advances have been made in knowledge of the physiopathology of reflux, such as identification of the role of the acid pocket in producing reflux, technological advances that allow differentiation among acid reflux, non-acid reflux and slightly acid reflux, and advances in the treatment of reflux with drugs that attempt to act on the barrier function of the esophagogastric junction.
Topics: Alginates; Aluminum Hydroxide; Antacids; Comorbidity; Drug Combinations; Electric Impedance; Esophageal pH Monitoring; Esophagogastric Junction; Fundoplication; Gastric Emptying; Gastroesophageal Reflux; Gastroscopy; Hernia, Hiatal; Humans; Manometry; Overweight; Postprandial Period; Posture; Prevalence; Proton Pump Inhibitors; Silicic Acid; Sodium Bicarbonate
PubMed: 24355558
DOI: 10.1016/j.gastrohep.2013.11.001 -
The Laryngoscope Aug 2020Although attic retractions have previously been classified into Grades 0 through IV, it is often not possible to assign attic retraction pockets into a single specific...
INTRODUCTION
Although attic retractions have previously been classified into Grades 0 through IV, it is often not possible to assign attic retraction pockets into a single specific category. The present study describes an improved classification system based on otoscopic and endoscopic visualization of the retraction pocket fundus, the ossicular status in the attic, degree of scutal erosion, and the presence or absence of cholesteatoma.
MATERIALS AND METHODS
One hundred and fifty-four patients (200 ears) with different grades of attic retraction pockets who were seen by a tertiary referral otology center between August 2015 and July 2018 were selected for this study.
OBSERVATIONS
The new classification system (Grades I, IIa, IIb, IIIa, IIIb, IIIc, IVa, IVb, IVc, and V) was applied to these retraction pockets. Pure tone audiometry was obtained.
RESULTS
All attic retraction pockets could be classified precisely using the new classification system. Forty-four of 200 (22%) of ears showed Grade I Attic retraction, 18 ears showed Grade IIa (9%), 14 showed Grade IIb (7%), 28 showed Grade IIIa (14%), 12 showed IIIb (6%), 20 showed Grade IIIc (10%), 16 showed grade IVa (8%), 12 showed grade IVb (6%), 28 showed grade IVc (14%), and eight showed grade V (4%) attic retraction pockets. Grades I, IIa, IIb, IIIa, and IVa had no significant hearing loss. Average hearing loss was 42 dB and 52 dB in Grades IIIb and IIIc, 44 dB and 58 dB in Grades IVb and IVc, and 61 dB in Grade V.
LEVEL OF EVIDENCE
5 Laryngoscope, 130: 2034-2039, 2020.
Topics: Cholesteatoma, Middle Ear; Ear Diseases; Ear, Middle; Humans; Otitis Media
PubMed: 31693167
DOI: 10.1002/lary.28368 -
Journal of Clinical Medicine Jul 2023Infective endocarditis (IE) is a disease of the endocardium, which leads to the appearance of vegetation on the valves, cardiac structures, or, potentially, vascular... (Review)
Review
Infective endocarditis (IE) is a disease of the endocardium, which leads to the appearance of vegetation on the valves, cardiac structures, or, potentially, vascular endothelium of the heart. The risk of IE can be increased more than 140 times by congenital heart disease (50-59% of all IE), particularly if cyanotic. An increase in mortality may result from IE in patients with a complex cardiac pathology or patients with an implanted prosthetic material, most frequently conduits in a pulmonary position. Cardiac implantable electronic devices (CIED) infective endocarditis is a life-threatening complication representing 10% of all cases of endocarditis. Common signs of presentation are often fever and chills; redness and swelling at the pocket of the pacemaker, including the erosion and exteriorization of the device; and life-threatening sepsis. The use of intracardiac echocardiography for the diagnosis of IE is an innovative method. This may be needed, especially in older children undergoing complex cardiac surgery, when transthoracic echocardiography (TTE) and transesophageal echocardiography (TOE) failed to provide a reliable diagnosis. The 2018 European Heart Rhythm Association (EHRA) experts' consensus statement on transvenous lead extraction recommends complete device removal and antimicrobial therapy for any device-related infection, including CIED-IE. The most detected microorganism was Staphylococcus Aureus. In addition, cardiac surgery and interventional cardiology associated with the placement of prostheses or conduits may increase the risk of IE up to 1.6% for Melody valve implantation. Our manuscript presents a comprehensive review of infective endocarditis associated with cardiac devices and prostheses in the pediatric population, including recent advances in diagnosis and management.
PubMed: 37568344
DOI: 10.3390/jcm12154941