ABSTRACT
Human myiasis is a rare condition that is more common in regions with a warm and humid climate. The larvae involved in myiasis are voracious; they destroy healthy tissues and may cause serious haemorrhage. The condition can be life threatening. Six patients with craniofacial trauma and oral myiasis are reported. The diagnoses were made after larvae had been extracted. Treatment consisted of subcutaneous ivermectin therapy and the application of a phenol preparation (10% creolin) as a local measure for the control of larvae. After 12 (±1) days of hospitalization, no larvae remained in the patients' mouths and the patients were discharged. The laboratory identified the larvae as those of the fly Cochliomyia hominivorax. Healing was uneventful in the six cases presented, and no undesirable reactions were observed throughout the period of treatment. Although the usual treatment for myiasis involves surgical removal of the maggots, pharmacological therapies are emerging as effective alternatives.
Subject(s)
Antiparasitic Agents/administration & dosage , Coal Tar/administration & dosage , Facial Injuries/complications , Ivermectin/administration & dosage , Mouth Diseases/etiology , Screw Worm Infection/etiology , Administration, Topical , Adult , Child , Colombia , Glasgow Coma Scale , Humans , Injections, Subcutaneous , Middle Aged , Mouth Diseases/drug therapy , Mouth Diseases/parasitology , Phenols/administration & dosage , Screw Worm Infection/drug therapy , Young AdultABSTRACT
En nuestro país los estudios acerca de las myiasis cutáneo-ulcerosas son escasos e incompletos, y de las que afectan a pequeños animales sólo se tienen datos de infecciones inducidas en la provincia de Buenos Aires. En este estudio se detectaron 149 perros y 9 gatos afectados por larvas de Cochliomyia hominivorax, 11 perros y 10 gatos por larvas de Phaenicia sericata. Las lesiones variaron desde superficiales leves hasta cavernosas muy graves, las mismas se hallaron distribuidas en la cabeza (boca, ojos, nariz y orejas), tronco, miembros, genitales externos, ano, periné y base de la cola. Las larvas I, II y III fueron extraídas en su totalidad entre los días 1 y 7 postinfección, en un número que varió entre 1 y 250. Los adultos de C. hominivorax han sido asociados a pasturas y floresta, y se ejerce sobre ellos control y vigilancia en las áreas subtropicales para evitar pérdidas en la producción ganadera. Los hallazgos en pequeños animales de zonas templadas y vinculados a áreas urbanas, alertaría sobre los riesgos de dispersión de una parasitosis de consecuencias aún no evaluadas en nuestro país. Las myiasis por P. sericata están estrechamente relacionadas con tejidos necrosados o cadáveres, por lo tanto, los datos aquí aportados representan los primeros registros de la especie como agente causal de myiasis primaria en pequeños animales
Subject(s)
Animals , Dogs , Cats , Diptera/pathogenicity , Screw Worm Infection/parasitology , Argentina , Cats/parasitology , Dogs/parasitology , Larva , Screw Worm Infection/etiologySubject(s)
Diptera , Myiasis/diagnosis , Screw Worm Infection/diagnosis , Travel , Adult , Animals , Belize , Child, Preschool , Female , Humans , Insect Bites and Stings/parasitology , Male , Middle Aged , Myiasis/etiology , Myiasis/surgery , Scalp/parasitology , Scalp/surgery , Screw Worm Infection/etiology , Screw Worm Infection/surgerySubject(s)
Adult , 21003 , Case Reports , Child, Preschool , Female , Humans , Male , Middle Aged , Diptera , Myiasis/diagnosis , Travel , Screw Worm Infection/diagnosis , Belize , Insect Bites and Stings/parasitology , Myiasis/etiology , Myiasis/surgery , Scalp/parasitology , Scalp/surgery , Screw Worm Infection/etiology , Screw Worm Infection/surgeryABSTRACT
Se informa de un caso de miasis aural en un niño de nueve años, producida por Cochliomyia hominivorax. La infestación tuvo lugar como consecuencia de una otitis crónica supurativa. El paciente tuvo pérdida del tímpano y perforación del hueso temporal
Subject(s)
Humans , Male , Child , Diptera/pathogenicity , Screw Worm Infection/diagnosis , Costa Rica , Diptera/growth & development , Otitis Media, Suppurative/complications , Tympanic Membrane Perforation/etiology , Screw Worm Infection/complications , Screw Worm Infection/etiology , Screw Worm Infection/parasitologySubject(s)
Diptera , Military Personnel , Scalp/injuries , Screw Worm Infection/etiology , Wounds, Gunshot/complications , Adult , Animals , Humans , Male , Panama , Travel , United StatesABSTRACT
An imported case of traumatic myiasis occurred in a soldier wounded during military action in Panama in December 1989 and evacuated to Brooke Army Medical Center, Fort Sam Houston, Texas. At the medical center, five larvae were removed from the scalp wound, reared to the adult stage, and identified as Cochliomyia hominivorax (Coquerel). Though this was the only reported case of wound myiasis of the 254 servicemen evacuated for medical treatment, this incident indicates a potential mechanism for the reintroduction of C. hominivorax into the United States.
Subject(s)
Craniocerebral Trauma/complications , Diptera/isolation & purification , Military Personnel , Screw Worm Infection/parasitology , Adult , Animals , Female , Humans , Male , Panama , Screw Worm Infection/etiology , Travel , United StatesABSTRACT
Although rare in North America and Europe, myiasis is seen occasionally in tropical and undeveloped countries. This disorder results from the penetration of a fly larva into a part of the human body, and it causes various symptoms in the host. The exposed areas of the skin are the ones predominantly affected and the eyes, ears, nose, and paranasal sinuses are less commonly affected. We review our experience with 12 patients with myiasis of the ears, nose, and paranasal sinuses.