Abstract:
:A panoramic sight of epidemiological, clinical and experimental studies, referring to Loxosceles laeta and loxoscelism, carried out in 1955-1988, in Santiago, Chile is presented. Two-hundred and sixteen cases of loxoscelism were studied. The most relevant features were: 84.3% corresponded to cutaneous loxoscelism (CL) and 15.7% to viscerocutaneous loxoscelism (VCL); 73.6% occurred in hot season; in 86.6% of cases the accident happened in the house, particularly in bedrooms, while the people were sleeping or dressing. The spider was seen in 60.2% of cases and identified in the laboratory as L. laeta in 10.6% of all cases. The sites more frequently bitten were the limbs with 67.6%; a burning-stinging was the most frequent initial symptom. Pain, edema and livedoid plaque, which developed later into a necrotic eschar, were the predominant local manifestations. In VCL, hematuria and hemoglobinuria were constant, while jaundice, fever and sensorial involvement were present in most of the cases. CL patients were parenterally treated with antihistaminic drugs or corticoids, while VCL ones were treated with corticoids by injection. The condition of patients in the last follow up was: complete cure in 75.5%, cure with a scarfed sequela in 8.3%, death in 3.7% (all VCL) and abandonment in 12.5%. Additionally, a series of experimental studies, both in vivo and in vitro, has been performed in order to clarify basic aspects on L. laeta venom and the treatment of loxoscelism.
journal_name
Rev Inst Med Trop Sao Paulojournal_title
Revista do Instituto de Medicina Tropical de Sao Pauloauthors
Schenone H,Saavedra T,Rojas A,Villarroel Fdoi
10.1590/s0036-46651989000600007subject
Has Abstractpub_date
1989-11-01 00:00:00pages
403-15issue
6eissn
0036-4665issn
1678-9946journal_volume
31pub_type
杂志文章abstract::The development of small ultrasonographic equipment has permitted to incorporate this technique to the methods of early detection of Human Hydatidosis. 689 echographies were carried out in this experience, and 5.51% of compatible images in the whole population, and 12.24% in groups of risk (those living together with ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651989000400010
更新日期:1989-07-01 00:00:00
abstract::Identifying the true prevalence of human T-cell lymphotropic virus, mostly type 1 (HTLV-1), and the number of patients with HTLV-1-associated diseases, in addition to introducing HTLV-1/2 serology during the prenatal of pregnant women and in individuals infected with other viruses that share transmission routes with H...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s1678-9946202062027
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abstract::Hand-foot-and-mouth disease (HFMD) is becoming one of the extremely common airborne and contact transmission diseases in Guangzhou, southern China, leading public health authorities to be concerned about its increased incidence. In this study, it was used an ecological study plus the negative binomial regression to id...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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doi:10.1590/s0036-46652014000600014
更新日期:2014-11-01 00:00:00
abstract::Cryo-microtome sections of larvae of Strongyloides stercoralis and S. ratti respectively obtained from human and rat feces cultures, were used as antigens. Fluoresceinate conjugates against human IgG were employed at the ideal titer of 10 for S. stercoralis and 100 for S. ratti. The sensitivity of the indirect immunof...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651997000600001
更新日期:1997-11-01 00:00:00
abstract::Among the 424 serum samples examined, the prevalence of hepatitis virus infection turned out to be 89.6%, with 15.6% of HBsAg positivity. Some of the samples belonged to an afferent population and some other to workers of a West Africa rural hospital (Pop. Rep. of Benin). 27.3% of the positive subjects presented activ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651990000100006
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abstract::A finding of vertical transmission of the DEN 3 virus in male specimens of Aedes aegypti, collected in the 2009 fall-winter period, in Puerto Iguazú city, Misiones, Argentina, using the RT-PCR technique in a 15-specimen pool is reported. This result is analyzed within the context of the epidemiological situation of Ar...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S0036-46652014000200013
更新日期:2014-03-01 00:00:00
abstract::Even though there are data published on HPV epidemiology in Ecuador, the distribution of genotypes in Guayaquil, the largest city in the country, has not been previously determined in a study including including both, men and women. The present study aimed to determine the distribution of 37 HPV genotypes in genital s...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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doi:10.1590/S1678-9946201961041
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abstract::The high mortality rates associated with candidemia episodes and the emergence of resistance to antifungal agents necessitate the monitoring of the susceptibility of fungal isolates to antifungal treatments. The new, recently approved, species-specific clinical breakpoints (SS-CBPs)(M27-S4) for evaluating susceptibili...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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abstract::Envenomation by coral snakes (Micrurus sp.) is one of the most dangerous injuries in America and it is considered as a serious medical emergency, however bites by these snakes appear to be rare. We analyzed epidemiological data, clinical signs and antivenom use in Argentina during the period between 1979-2003. During ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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abstract::Two cases of spontaneous bacterial peritonitis (SBP) caused by Listeria monocytogenes in cirrhotic patients are reported. In one of the cases, the microorganism was isolated from pleural effusion and ascites. SBP is a serious and common complication of patients with ascites caused by hepatic cirrhosis and the culture ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652006000500010
更新日期:2006-09-01 00:00:00
abstract::The recognition profile of the tissue cysts antigens by IgG antibodies was studied during acute and chronic human toxoplasmic infection. Thus the IgG response against Toxoplasma gondii was investigated by immunoblotting in two patients accidentally infected with the RH strain as well as in group of naturally infected ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651998000200003
更新日期:1998-03-01 00:00:00
abstract::Chlamydia trachomatis (CT) infection is often silent and can lead to long-term reproductive complications in women. In this study, we determined the prevalence of CT infection and possible associations between the presence of the infection and clinical-epidemiological variables in pregnant women attended at the Basic ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/S1678-9946201961006
更新日期:2019-02-14 00:00:00
abstract::Human T-lymphotropic virus type 1 (HTLV-1) is found in indigenous peoples of the Pacific Islands and the Americas, whereas type 2 (HTLV-2) is widely distributed among the indigenous peoples of the Americas, where it appears to be more prevalent than HTLV-1, and in some tribes of Central Africa. HTLV-2 is considered an...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/S0036-46652015000100001
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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更新日期:2008-11-01 00:00:00
abstract::Capnocytophaga is a group of facultative anaerobic gram-negative bacteria present in the oral cavity of humans, dogs and cats, as part of their normal oral flora. Here, we described two cases of bloodstream infections (BSI) caused by Capnocytophaga in neutropenic autologous hematopoietic stem cell transplantation (aut...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s1678-9946202062048
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::Immunosuppressed animals respond poorly to schistosomal chemotherapy and a proper response can be restored by the administration of immune serum. Present study attempts to search whether immunological stimulation would increase drug effectiveness. Swiss mice infected with 50 S. mansoni cercariae were later treated wit...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651997000100003
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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abstract::Cryptosporidium spp. and Cystoisospora belli are monoxenic protozoa that have been recognized as the causative agents of chronic diarrhea in immunocompromised individuals, especially HIV-infected subjects. The objective of this study was to evaluate the frequency of these intestinal protozoa in HIV-positive patients i...
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abstract::The frequency and class of immediate-type hypersensitivity manifestations were studied in 494 snakebitten and scorpion stung patients who were treated with intravenous injections of antivenom sera. These patients were admitted to HC-FMRPUSP from 1983 to 1988. The effectiveness of a hypersensitivity skin test was also ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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更新日期:1991-03-01 00:00:00
abstract::Between April 2003 and May 2009 phlebotomine sandflies were collected in Parque do Sabiá complex, Uberlândia municipality, Minas Gerais State, Brazil, using CDC and Shannon traps. The objective was to associate the sandfly species captured to the risk of the transmission of leishmaniasis in the municipality. The 126 c...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652011000500003
更新日期:2011-09-01 00:00:00
abstract::Cerebral phaeohyphomycosis ("chromoblastomycosis") is a rare intracranial lesion. We report the first human culture-proven case of brain abscesses due to Fonsecaea pedrosoi in Brazil. The patient, a 28 year-old immunocompetent white male, had ocular manifestations and a hypertensive intracranial syndrome. Magnetic res...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652003000400008
更新日期:2003-07-01 00:00:00
abstract::Giardia intestinalis infection is prevalent throughout the world and widely distributed in developing countries. In general, children display serious consequences to their state of health, including slow height-weight development; therefore, the main aim of this study was to determine the association between Giardia i...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652009000300006
更新日期:2009-05-01 00:00:00
abstract::Dengue is a viral disease, caused by an arbovirus of the genus Flavivirus. In Brazil, its incidence rate is high with a broad clinical spectrum. This report discusses a rare case of dengue associated with cutaneous leukocytoclastic vasculitis and pericardial effusion with eminence of cardiac tamponade in a previously ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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doi:10.1590/S1678-9946202062101
更新日期:2020-12-18 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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更新日期:2014-09-01 00:00:00
abstract::Giardia duodenalis isolates from asymptomatic or symptomatic patients and from animals present similarities and differences in the protein composition, antigenic profile, pattern of proteases and isoenzymes, as well as in nucleic acids analysis. In the present overview, these differences and similarities are reviewed ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46651999000100009
更新日期:1999-01-01 00:00:00
abstract::Cytomegalovirus (CMV) infection is the most common congenital infection, affecting 0.4% to 2.3% newborns. Most of them are asymptomatic at birth, but later 10% develop handicaps, mainly neurological disturbances. Our aim was to determine the prevalence of CMV shed in urine of newborns from a neonatal intensive care un...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46652000000300003
更新日期:2000-05-01 00:00:00
abstract::Staphylococcus aureus binds Immunoglobulin G (IgG) on its external surface due to the presence of specific receptors for the Fc domain of this immunoglobulin. This mechanism represents a kind of camouflage against phagocytic cells. In order to confirm that possibility an in vitro evaluation of the phagocytic activity ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651999000300001
更新日期:1999-05-01 00:00:00
abstract::The specificity and sensitivity of the enzyme immunoassay (EIA), presently used in South America areas where hydatidosis caused by Echinococcus granulosus is endemic, was compared to two alternative EIA. One of these uses an hydatid antigen of different preparation and the other vesicular fluid of Taenia crassiceps ci...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651993000200007
更新日期:1993-03-01 00:00:00