The usefulness of immediate skin tests to haptenes derived from penicillin. A study in patients with a history of previous adverse reactions to penicillin

1971 ◽  
Vol 103 (4) ◽  
pp. 371-374 ◽  
Author(s):  
M. J. Fellner
2022 ◽  
Vol 50 (1) ◽  
pp. 104-107
Author(s):  
Luis Moral ◽  
Teresa Toral ◽  
Ana Gilabert ◽  
Ares Sánchez ◽  
Juan Francisco Silvestre ◽  
...  

In pediatric patients, severe cutaneous adverse reactions (SCARs) frequently occur in the course of acute illnesses, mostly infections, which are usually treated with antibiotics or analgesics. The drug provocation test (DPT) is contraindicated in such situations, due to the risk of triggering a new severe reaction. As a consequence, lifelong avoidance is recommended. However, causation is uncertain in most cases. The dilemma arises when avoiding the drug is not harmless for the patient. We have attended three patients who were referred to our pediatric allergy unit with a history of SCAR related in time to simultaneous use of paracetamol and ibuprofen. Medical records and images of the patients were reviewed with the assistance of a dermatologist, and alternative diagnoses were considered in both cases. The ALDEN score for implicated drugs was calculated. After considering a high probability of ibuprofen tolerance and obtaining informed consent from the patients, we performed a sequential allergy workup including in vitro tests, skin tests, and finally DPT in two of the patients, confirming ibuprofen tolerance. In conclusion, although generally contraindicated, DPT may be considered for some useful drugs after careful evaluation of the risk–benefit balance, preceded by a sequential study including in vitro and skin tests.


1979 ◽  
Vol 1 (5) ◽  
pp. 132-158

A (massive) multicenter study of 3,000 patients has demonstrated that skin tests to penicillin G and penicilloyl-polylysine (PPL-now commercially available) predict and confirm penicillin allergy. Of patients with a history of penicillin reaction, 19% were positive to either, compared to 7% of controls. A history of anaphylaxis led to 46% positive. Of those with a history of urticaria 17% were positive, and those with maculopapular eruptions did not differ from controls (7% positive). Challenge with penicillin led to a reaction in 6% with a positive history (compared to 2% with a negative) and 67% with a combined positive history and positive skin test (to either).


Heliyon ◽  
2021 ◽  
pp. e08401
Author(s):  
Wasurat Sungworn ◽  
Orathai Theankeaw ◽  
Aree Jameekornrak Taweechue ◽  
Chamard Wongsa ◽  
Torpong Thongngarm ◽  
...  
Keyword(s):  

1994 ◽  
Vol 111 (5) ◽  
pp. 580-588 ◽  
Author(s):  
John P. Bent ◽  
Frederick A. Kuhn

Allergic fungal sinusitis is a noninvasive disease first recognized approximately one decade ago. It accounts for approximately 6% to 8% of all chronic sinusitis requiring surgical intervention and has become a subject of increasing interest to otolaryngologists and related specialists. Although certain signs and symptoms, as well as radiographic, intraoperative, and pathologic findings, may cause the physician to suspect allergic fungal sinusitis, no standards have been defined for establishing the diagnosis. It is extremely important to recognize allergic fungal sinusitis and differentiate it from chronic bacterial sinusitis and other forms of fungal sinusitis because the treatments and prognoses for these disorders vary significantly. To delineate a set of diagnostic criteria, we prospectively evaluated our most recent 15 patients with allergic fungal sinusitis. An allergy evaluation confirmed atopy through a strong history of inhalant mold allergies, an elevated total immunoglobulin E level, or a positive result of a skin test or radioallergosorbent test to fungal antigens in 100% of patients. All 15 patients had nasal polyposis, and 8 of 15 had asthma. There was a unilateral predominance in 13 of 15 cases. A characteristic computerized tomography finding of serpiginous areas of high attenuation in affected sinuses was seen in all patients, and 12 of 15 patients had some degree of radiographic bone erosion. Pathologic examination uniformly revealed eosinophilic mucus without fungal invasion into soft tissue; Charcot-Leyden crystals and peripheral eosinophilic were each observed in 6 of 15 patients. Every patient had fungus identified on fungal smear, although only 11 of 15 fungal cultures were positive. Therefore, for the diagnosis of allergic fungal sinusitis to be established, the following criteria should be met: (1) type I hypersensitivity confirmed by history, skin tests, or serology; (2) nasal polyposis; (3) characteristic computed tomography signs; (4) eosinophilic mucus without fungal invasion into sinus tissue; and (5) positive fungal stain of sinus contents removed during surgery. Radiographic bone erosion does not necessarily imply invasive disease, and a positive fungal culture, although desirable, is not necessary to confirm the diagnosis. Unilateral predominance of disease, a history of asthma, Charcot-Leyden crystals, and peripheral eosinophilla corroborate the diagnosis but are not always present. Perhaps because of the novelty of the disease, much misunderstanding surrounds allergic fungal sinusitis. Misdiagnosis is common, recurrence rates are high, and proper treatment remains elusive. Before proceeding with other advances, a common understanding of the diagnosis of allergic fungal sinusitis is mandatory.


PEDIATRICS ◽  
1977 ◽  
Vol 59 (4) ◽  
pp. 562-565
Author(s):  
Jacob A. Lohr ◽  
Donna H. Nunley ◽  
Stuart S. Howards ◽  
Raymond F. Ford

Eighteen girls between the ages of 3 and 13 years—with a history of at least three culture-documented episodes of bacteriuria in the previous year, but without radiologic evidence of major urinary tract abnormality—were placed on a double-blind, crossover study comparing the effectiveness of nitrofurantoin macrocrystals against a placebo in preventing the recurrence of bacteriuria. Each child was placed on a daily low dose of nitrofurantoin (1.2 to 2.4 mg/kg/day) or an identical-appearing placebo for six months. Each child was then placed on the opposite capsule for a similar period. There were 35 episodes of bacteriuria (4.2 episodes/patient/yr) in the patients taking the placebo, which compared with a rate of 3.8 episodes/patient/yr during the year prior to the study. Only two episodes (0.2 episodes/patient/yr) occurred in the patients taking the drug. The difference in the rate of recurrent bacteriuria between the girls on placebo and on medication is significant at the 0.01 level using the Wilcoxin matched-pairs test. There were no adverse reactions to the drug. Nitrofurantoin macrocrystals in a single daily low dose appear to be a safe, effective method of preventing recurrent bacteriuria in girls at high risk.


Author(s):  
Daniel J. Wallace ◽  
Janice Brock Wallace

Over the years, a variety of health professionals have developed terms or phrases to denote seemingly unique clinical combinations of symptoms and signs. A disorder or syndrome does not necessarily exist simply because it has been described in the medical literature. Some have stood the test of time, others overlap with syndromes described by different specialists, and additional terms may be favored by a single practitioner advocating a “cause.” This chapter reviews conditions that have overlapping features with fibromyalgia but are not yet regarded as full-blown, legitimate disorders by organized medicine. When Dr. Fine first met Wanda, she was a basket case. Wanda had canceled three prior appointments because smells from a new carpet had made her sick, Med fly agricultural spraying 30 miles away prevented her from getting out of bed, and she developed a severe headache when her neighbors’ house was being painted. She almost passed out in the elevator going to Dr. Fine’s office because somebody was smoking. Wanda had been to three allergists, who obtained normal skin tests and blood tests. Desperate, she traveled to Mexico, where “immune rejuvenating” injections were administered, and to Texas, where a clinical ecologist sequestered her in a pollution-free, environmentally safe quonset hut for a month. There she received daily colonies, antiyeast medication, and vitamin shots, to no avail. Dr. Fine elicited a history of aching, sleep disorder, a “leaky gut,” muscle pains, fatigue, and a spastic colon. His physical examination and mental status examination revealed evidence of anxiety, obsessive-compulsive tendencies, and fibromyalgia tender points. Wanda was treated with fluoxetine (Prozac) for pain and obsessive behavior, buspirone (Buspar), for anxiety during the day, and trazodone (Desyrel), a tricyclic, to help her sleep at night. She was referred to a psychologist who worked to improve Wanda’s socialization skills and encouraged her to go out rather than be a prisoner in her own home. Wanda is slowly improving but will need many months of therapy. Self-reported environmental sensitivities are observed in 15 percent of Americans.


2018 ◽  
Vol 71 (4) ◽  
pp. 296-299 ◽  
Author(s):  
Yu Yil Kim ◽  
Ik Thae Kim ◽  
Sung In Shin ◽  
So Mang Yim

2017 ◽  
Vol 7 (4) ◽  
pp. 141-157 ◽  
Author(s):  
Rafael G. dos Santos ◽  
José Carlos Bouso ◽  
Jaime E. C. Hallak

Ayahuasca is a hallucinogen brew traditionally used for ritual and therapeutic purposes in Northwestern Amazon. It is rich in the tryptamine hallucinogens dimethyltryptamine (DMT), which acts as a serotonin 5-HT2A agonist. This mechanism of action is similar to other compounds such as lysergic acid diethylamide (LSD) and psilocybin. The controlled use of LSD and psilocybin in experimental settings is associated with a low incidence of psychotic episodes, and population studies corroborate these findings. Both the controlled use of DMT in experimental settings and the use of ayahuasca in experimental and ritual settings are not usually associated with psychotic episodes, but little is known regarding ayahuasca or DMT use outside these controlled contexts. Thus, we performed a systematic review of the published case reports describing psychotic episodes associated with ayahuasca and DMT intake. We found three case series and two case reports describing psychotic episodes associated with ayahuasca intake, and three case reports describing psychotic episodes associated with DMT. Several reports describe subjects with a personal and possibly a family history of psychosis (including schizophrenia, schizophreniform disorders, psychotic mania, psychotic depression), nonpsychotic mania, or concomitant use of other drugs. However, some cases also described psychotic episodes in subjects without these previous characteristics. Overall, the incidence of such episodes appears to be rare in both the ritual and the recreational/noncontrolled settings. Performance of a psychiatric screening before administration of these drugs, and other hallucinogens, in controlled settings seems to significantly reduce the possibility of adverse reactions with psychotic symptomatology. Individuals with a personal or family history of any psychotic illness or nonpsychotic mania should avoid hallucinogen intake.


Author(s):  
Satish Keshav ◽  
Palak Trivedi

Drugs are an important and common cause of hepatic injury. This is unsurprising, as the liver is a major site for drug clearance, biotransformation, and excretion. A careful history of drugs taken (prescribed, over the counter, herbal, or illicit) is vital when assessing anyone with abnormal liver function tests. Although toxic or idiosyncratic adverse reactions may occur with many therapeutic agents, drug-induced jaundice is not so common.


2000 ◽  
Vol 16 (2) ◽  
pp. 47-49 ◽  
Author(s):  
Matitiahu Lifshitz ◽  
Perez Kornmehl ◽  
Haim Reuveni

Objective: To determine the incidence of adverse drug reactions in patients with acetaminophen overdose following administration of intravenous acetylcysteine, and to evaluate the cost-benefit ratio of intravenous compared with oral acetylcysteine therapy. Methods: The incidence of adverse drug reactions to intravenous acetylcysteine therapy was studied retrospectively in all patients with acetaminophen overdose who were admitted to Soroka University Medical Center, Beer-Sheva, Israel, from 1994 to 1998. Data were obtained from hospital records. All patients were treated with a 20-hour intravenous regimen according to the Prescott protocol. Special attention was paid to the clinical manifestations of adverse reactions, time of onset, and history of patient allergy and asthma. Cost of therapy (drug prices, hospital per diems) for intravenous versus oral acetylcysteine administration was evaluated in accordance with average rates prevailing in Israel in December 1998. Results: Ninety-two patients, 32 adolescents aged 12–18 years (mean ± SD 14.2 ± 1.9) and 60 adults aged 18–52 years (28.2 ± 3.2), were treated with intravenous acetylcysteine for acetaminophen overdose during the study period. Three patients (3.2%) developed adverse reactions: one adult presented with a maculopapular rash and pruritus, and two adolescents developed mild urticaria; no other adverse reactions were reported. All adverse reactions occurred during administration of the loading dose, 15–20 minutes after initiation of therapy. The reactions subsided a few hours after the acetylcysteine infusion was stopped and did not require antiallergy therapy. None of the three patients had a history of allergy. The 20-hour intravenous acetylcysteine protocol is approximately three times less expensive than the recommended oral regimen in terms of drug cost and length of hospitalization. Conclusions: Intravenous acetylcysteine is a relatively safe antidote for acetaminophen poisoning. The incidence rate of adverse reactions is low, and they are mild and easily controlled by termination of the infusion. We recommend intravenous acetylcysteine therapy, particularly for patients with vomiting caused by the acetaminophen overdose or by oral acetylcysteine therapy. The 20-hour intravenous acetylcysteine therapy has a cost-benefit advantage over oral therapy; however, the oral formulation is not approved by the FDA.


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