RESUMO
BACKGROUND: Hyaluronic acid fillers are the second-most commonly performed nonsurgical procedure. Arterial thrombosis is their most devastating complication. Recent research shows that along hyaluronic acid thrombi, a platelet/fibrin thrombus forms in the site of injection. This is not addressed by current management protocols, which focus on perivascular hyaluronidase plus adjuvant strategies to increase blood flow. We experimented with an animal model utilizing both hyaluronidase and a thrombolytic agent for treatment of occlusion. OBJECTIVES: The authors sought to evaluate the efficacy of a combined treatment of hyaluronidase with a thrombolytic agent applied perivascularly to an artery occluded with hyaluronic acid. METHODS: After direct intravascular injection into the femoral artery, rats were randomized to receive one of the following perivascular solutions: saline, hyaluronidase, alteplase, or hyaluronidase + alteplase. Reperfusion, distal bleeding, and microscopic findings were evaluated 4 hours after intervention. RESULTS: None of the subjects in the control group showed signs of reperfusion. In the hyaluronidase group, 60% reperfused, 10% completely, the rest only partially. In the alteplase group, 50% reperfused partially. In the hyaluronidase + alteplase group, 50% had partial and 50% complete prepermeabilization. Kruskal-Wallis test showed a P < 0.0001 favoring hyaluronidase + alteplase. Microscopic findings were compatible with bleeding rates. CONCLUSIONS: Both hyaluronic acid and red thrombi play a role in the occluded vessel. Perivascular application of hyaluronidase with a thrombolytic agent seems to achieve greater reperfusion rates than either one alone. If proven safe in humans, this strategy could make treatment more effective while still being suitable for an outpatient setting.
Assuntos
Trombose , Ativador de Plasminogênio Tecidual , Animais , Fibrinolíticos/efeitos adversos , Ácido Hialurônico , Hialuronoglucosaminidase , Ratos , Trombose/tratamento farmacológico , Trombose/etiologia , Ativador de Plasminogênio Tecidual/efeitos adversosRESUMO
Morgagni diaphragmatic hernia is a birth defect whose presentation in adults is rare. Diagnosis is usually made as an incidental finding through image studies; infrequently, patients may present with symptoms such as dyspnea or retrosternal pain. Open surgical repair has been the preferred management method of symptomatic presentation. In this paper we present the case of a 42 year-old-male with symptoms of retrosternal pain and dyspnea. Diaphragmatic hernia diagnosis was made ââby CT and it was managed by laparoscopic repair of the diaphragmatic hernia.
Assuntos
Hérnias Diafragmáticas Congênitas/cirurgia , Laparoscopia/métodos , Adulto , Dor no Peito/etiologia , Dispneia/etiologia , Hérnias Diafragmáticas Congênitas/diagnóstico , Hérnias Diafragmáticas Congênitas/fisiopatologia , Humanos , Masculino , Tomografia Computadorizada por Raios XRESUMO
A case of a 78-year-old female who presented with clinical, ultrasonographic and laboratory findings typical of acute cholecystitis is presented. Diagnostic laparoscopy revealed a hemorrhagic infrahepatic mass and free blood within the peritoneal space; the procedure was then converted to an open one, which identified a 15 x 5 cm mass corresponding to a gallbladder volvulus. The final histopathologic study confirmed the diagnosis. A gallbladder volvulus should be suspected in elderly patients, particularly in those with a previous history of significant weight loss, who additionally present positive clinical and paraclinical data of acute cholecystitis. There are no still biochemical exams that may preoperatively identify patients at high risk for this infrequent abnormality.