Posts filed under ‘Infecciones en piel y tej blandos’

Osteomyelitis Complicating Sacral Pressure Ulcers: Whether or Not to Treat With Antibiotic Therapy

Clinical Infectious Diseases January 15, 2019 V.68 N.2 P.338–342

EDITOR’S CHOICE

Darren Wong; Paul Holtom; Brad Spellberg

The treatment of osteomyelitis in patients with stage IV sacral pressure ulcers is controversial. We conducted a systematic literature review and did not find evidence of benefit of antibacterial therapy in this setting without concomitant surgical debridement and wound coverage. Furthermore, many patients with chronically exposed bone do not have evidence of osteomyelitis when biopsied, and magnetic resonance imaging may not accurately distinguish osteomyelitis from bone remodeling. The goal of therapy should be local wound care and assessment for the potential of wound closure. If the wound can be closed and osteomyelitis is present on bone biopsy, appropriate antibiotic therapy is reasonable. We find no data to support antibiotic durations of >6 weeks in this setting, and some authors recommend 2 weeks of therapy if the osteomyelitis is limited to cortical bone. If the wound will not be closed, we find no clear evidence supporting a role for antibiotic therapy.

FULL TEXT

https://academic.oup.com/cid/article/68/2/338/5050260

PDF (CLIC en PDF)

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January 20, 2019 at 11:03 am

Review – Vibrio vulnificus, an important cause of severe sepsis and skin and soft-tissue infection.

International Journal of Infectious Diseases 2011 V.15 e157-e166

Michael A. Horseman a,b,c,*, Salim Surani c,d,e

aDepartment of Pharmacy Practice, College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, Texas, USA

bDepartment of Family Medicine & Community Medicine, School of Medicine, University of Texas Health Sciences Center, San Antonio, Texas, USA

c Christus Spohn Hospital Corpus Christi – Memorial, 2606 Hospital Blvd, Corpus Christi, Texas 78405, USA

dDepartment of Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston, Texas, USA

eDepartment of Internal Medicine, Texas A&M Health Science Center – College of Medicine, Scott and White Hospital, Temple, Texas, USA

Vibrio vulnificus is a halophilic Gram-negative bacillus found worldwide in warm coastal waters.

The pathogen has the ability to cause primary sepsis in certain high-risk populations, including patients with chronic liver disease, immunodeficiency, iron storage disorders, end-stage renal disease, and diabetes mellitus.

Most reported cases of primary sepsis in the USA are associated with the ingestion of raw or undercooked oysters harvested from the Gulf Coast.

The mortality rate for patients with severe sepsis is high, exceeding 50% in most reported series.

Other clinical presentations include wound infection and gastroenteritis.

Mild to moderate wound infection and gastroenteritis may occur in patients without obvious risk factors.

Severe wound infection is often characterized by necrotizing skin and soft-tissue infection, including fasciitis and gangrene.

V. vulnificus possesses several virulence factors, including the ability to evade destruction by stomach acid, capsular polysaccharide, lipopolysaccharide, cytotoxins, pili, and flagellum.

The preferred antimicrobial therapy is doxycycline in combination with ceftazidime and surgery for necrotizing soft-tissue infection.

PDF

https://www.ijidonline.com/article/S1201-9712(10)02538-5/pdf

January 10, 2019 at 8:32 am

Vibrio vulnificus, una bacteria al acecho en las playas.

Highlights en investigación December 2014

Iván Renato Zúñiga Carrasco*, Janett Caro Lozano**.

*Jefe del Departamento de Epidemiología. Miembro del Comité Local de

Investigación y Ética en Salud (CLIES). H.G.Z. # 18 IMSS Playa del Carmen, Quintana

Roo.

**Jefa del Departamento de Epidemiología. Miembro del Comité Local de

Investigación y Ética en Salud (CLIES) H.G.Z. C/M.F. 1 IMSS Chetumal, Quintana Roo.

Un patógeno que puede ser transmitido por los ostiones es Vibrio vulnificus.

Descrito en 1976, se le denominó “Vibrio lactosa positivo”, posteriormente se le llamó Beneckea vulnificus y finalmente V. vulnificus. Pertenece a la familia Vibrionaceae, son bacilos Gramnegativos, rectos y curvos, móviles por la presencia de un flagelo polar, oxidasa positivos, no esporulados.

Son termolábiles y se comportan como anaerobios facultativos.

Entre las más de 30 especies del género Vibrio, se han reportado 12 como patógenas para el hombre, entre las que sobresalen V. cholerae, V. parahaemolyticus y V vulnificus . . .

PDF

http://www.medigraphic.com/pdfs/revenfinfped/eip-2014/eip144e.pdf

January 10, 2019 at 8:30 am

CASO CLINICO – Shock séptico por Vibrio vulnificus – un caso pediátrico

Revista de Enfermedades Infecciosas en Pediatría Diciembre 2013 Vol. XXVII Núm. 106

Dra. Marisol Fonseca Flores*, Dra. Sandra Luz Lizárraga López**, Dr. Agustín De Colsa Ranero***

* Médico Residente de Pediatría. Instituto Nacional de Pediatría.

** Médico Adscrito a la Unidad de Terapia Intensiva. Instituto Nacional de Pediatría.

*** Médico Adscrito al Departamento de Infectología Pediátrica. Instituto Nacional de Pediatría.

Los reportes de infección por V. vulnificus en pediatría son limitados en la literatura, y característicamente se describen 3 cuadros clínicos: Sepsis Primaria, Infección de piel y tejidos blandos e Infección gastrointestinal.

Se reporta el caso de un paciente masculino de 15 años de edad con diagnóstico de aplasia pura de serie roja y hemosiderosis, quien ingresa con cuadro febril, lesiones dérmicas, diarrea y datos de choque.

A los 4 días de su ingreso se identifica Vibrio vulnificus en hemocultivo, sin embargo, el paciente fallece a pesar del tratamiento establecido.

Con la presentación de este caso, se describen las características clínicas, epidemiológicas, factores de riesgos y evolución de la infección sistémica por V. vulnificus . . .

PDF

http://www.medigraphic.com/pdfs/revenfinfped/eip-2013/eip134g.pdf

 

January 10, 2019 at 8:28 am

PATÓGENO OPORTUNISTA VIBRIO VULNIFICUS

Revista Digital Universitaria 10 de abril 2005 • Volumen 6 Número 4 • ISSN: 1067-6079

Vibrio vulnificus es un bacteria halofílica. Tiene como reservorios ostiones, pescado, sedimento, agua y plankton.

Causa tres cuadros clínicos en humanos: septicemia, gastroenteritis e infección en heridas, de estos cuadros clínicos la septicemia tiene una mortalidad menos del 50%.

En general este tipo de enfermedades se presenta en personas inmunocomprometidas o con problemas hepáticos, por lo que se considera un patógeno oportunista, aunque se han reportado casos de infección en heridas en personas sanas.

Los moluscos en general poseen una alimentación por filtración, este sistema de nutrición permite que se acumule una gran cantidad de microorganismos y otros elementos presentes en el ambiente en donde se desarrollan. . .

PDF

http://www.revista.unam.mx/vol.6/num4/art32/abr_art32.pdf

January 10, 2019 at 8:26 am

Highlights From Clinical Practice Guidelines by the Infectious Diseases Society of America for the Treatment of Methicillin-Resistant Staphylococcus aureus Infections in Adults and Children

Infectious Diseases in Clinical Practice May 2011 V.19 N.3 P.207-20

Clinical Guidelines

File, Thomas M. Jr

Recently, the Infectious Diseases Society published evidence-based guidelines for the treatment of methicillin-resistant Staphylococcus aureus infections.

The guideline discusses the management of a variety of infections including skin infections, bacteremia and endocarditis, pneumonia, and osteomyelitis and joint infections.

FULL TEXT

https://journals.lww.com/infectdis/Fulltext/2011/05000/Highlights_From_Clinical_Practice_Guidelines_by.13.aspx

PDF (CLIC en PDF)

December 7, 2018 at 9:28 am

Managing an Elusive Pathogen: Treatment of Methicillin-Resistant Staphylococcus aureus Infections in a Variety of Care Settings

Infectious Diseases in Clinical Practice May 2011 V.19 N.3 P.150-155

NFID Clinical Updates

Poretz, Donald M.; Rehm, Susan J.

Methicillin-resistant Staphylococcus aureus (MRSA) infections continue to be a major problem both within hospitals (hospital-acquired MRSA) and increasingly in community settings (community-acquired MRSA), leading to well-publicized media reports and, as a result, greater public awareness of this problem.

Clinically, it is difficult to distinguish between a MRSA and a methicillin-sensitive S. aureus skin and soft tissue infection, and this should be taken into consideration when initiating empiric therapy.

There are several oral and intravenous antibiotics available to treat MRSA infections, some of which are inexpensive, whereas others are extremely costly; all have potential adverse effects and possible drug-drug interactions with which the prescriber should be familiar.

Careful monitoring of patients who receive outpatient intravenous antibiotics and an understanding of various intravenous devices and their associated possible complications in addition to knowledge of the economics involved are essential to make cost-effective decisions.

FULL TEXT

https://journals.lww.com/infectdis/Fulltext/2011/05000/Managing_an_Elusive_Pathogen__Treatment_of.2.aspx

PDF (CLIC en PDF)

December 7, 2018 at 9:24 am

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