Medication Bezoars: A Literature Review and Report of a Case

1998 ◽  
Vol 32 (9) ◽  
pp. 940-946 ◽  
Author(s):  
James R Taylor ◽  
Daniel S Streetman ◽  
Sharon S Castle

OBJECTIVE: To describe a case of a medication bezoar and to review the clinical presentation, diagnosis, risk factors, pathogenesis, complications, and treatment of medication bezoars. DATA SOURCES AND STUDY SELECTION: A MEDLINE search (January 1966–December 1997) of the English-language literature pertaining to bezoars was performed. These articles were scanned, and literature specifically discussing medication bezoars was selected. Additionally, the reference sections of pertinent review and case reports were scanned for additional relevant literature. DATA SYNTHESIS: Bezoars are concretions of foreign material within the body. In the case of medication bezoars, these concretions occur within the digestive tract and are composed of medications and/or medication vehicles. Rarely, however, is bezoar formation solely due to a medication. In nearly all reported cases the patient had one or more significant risk factors that contributed to bezoar formation. The exact method by which medication bezoars form is dependent on the particular type or combination of medications involved. Bezoar formation may be associated with significant complications for the patient due to the presence of the bezoar and because of the effects of the medication within the bezoar. Treatment of medication bezoars depends largely on the location and the cause of the bezoar. CONCLUSIONS: Medication bezoars are a rare but potentially serious complication of medication use in certain patients. These patients often present with signs and symptoms consistent with an obstruction of the gastrointestinal tract and represent an even greater diagnostic challenge due to the rarity of this complication. These patients also face significant complications from both the bezoar and the medication within the bezoar. To date, treatment of medication bezoars involves mainly physical manipulation of the bezoar through lavage, endoscopic removal, or, in most cases, surgical removal.

Author(s):  
Sarah Perz ◽  
Timothy Suttle ◽  
Puneet Sindhwani

Background: The presence of a ureter in a hernia sac presents a unique surgical challenge and can increase the likelihood of ureteral injury at the time of surgery as they are often not identified pre-operatively. Here we present our institutional experience and thorough systematic review in order to provide guidance on the urologist’s role in this situation.Materials and Methods: A PubMed and Medline search was conducted to identify relevant literature published in the year 2000 or later. Case reports and case series in the English language were included using terms “ureter and hernia”, “herniated ureter”, “ureteral hernia”, inguinal hernia and ureter”.Results: The presence of a ureter in an inguinal hernia sac is an uncommon finding. When present, many are not identified pre-operatively, which places the patient at risk for ureteral injury during herniorrhaphy.Patients with ureters contained in their inguinal hernias, that were identified pre-operatively or intra-operatively and not injured, recovered well. Post-operative imaging, when performed, showed stabilization or improvement of hydronephrosis and a more normal course of the ureter. One case reported the identification of ureteral involvement post-operatively after injury, which resulted in worsened renal function and required a re-operation.Conclusions:The presence of a ureter in an inguinal hernia can be differently managed. The primary goal should be avoidance of injury intra-operatively.


1995 ◽  
Vol 29 (11) ◽  
pp. 1149-1155 ◽  
Author(s):  
Alice L Tseng ◽  
Sharon L Walmsley

Objective: To review rifabutin-associated uveitis and discuss the mechanism and potential role of drug interactions with clarithromycin and fluconazole in contributing to this adverse event. Data Sources: A MEDLINE search (1991 through September 1994) of English-language literature using the main MeSH headings “rifabutin” and “uveitis” and the subheadings “adverse effects” and “chemically induced.” Relevant articles also were selected from references of identified articles. Abstracts from recent medical conferences of infectious diseases, pharmacology, and HIV were screened for additional data. Study Selection and Data Extraction: All articles and abstracts reporting uveitis potentially related to rifabutin were considered for inclusion. Fifty-four cases were identified. Pertinent information from the case reports, as judged by the authors, was selected and synthesized for discussion. Data Synthesis: Rifabutin is being prescribed increasingly for the treatment and prophylaxis of Mycobacterium avium complex (MAC) infection in the HIV-infected population. Uveitis was initially thought to be a rare, dose-limited complication of rifabutin therapy. In an early dose-ranging tolerance study, uveitis was associated with daily doses of 1200 mg or more. Because this toxicity appeared to be dose-related, lower dosages (300–600 mg/d) of rifabutin were selected for study in subsequent clinical trials. More recent reports noting the association of uveitis with these lower dosages of rifabutin have raised concerns about the prevalence of this adverse event. In the 54 identified cases, patients presented with symptoms of unilateral or bilateral uveitis from 2 weeks to more than 7 months following initiation of rifabutin therapy. In all reported cases, patients were receiving concurrent therapy with clarithromycin and/or fluconazole, both of which have inhibitory effects on rifabutin metabolism. In most cases, uveitis resolved within 1–2 months following discontinuation of rifabutin with or without administration of topical corticosteroids. Conclusions: Rifabutin is prescribed frequently for the prophylaxis and treatment of MAC infection, especially in patients with HIV. Uveitis is a rare, dose-related toxicity of this therapy. The risk of rifabutin-associated uveitis may be increased in patients receiving concurrent therapy with clarithromycin or fluconazole because of drug interactions. Patients receiving therapy with combinations of any of these agents should be warned about signs and symptoms of uveitis and be monitored closely for the development of rifabutin toxicity. If uveitis develops, rifabutin therapy should be discontinued promptly.


1992 ◽  
Vol 26 (10) ◽  
pp. 1233-1236 ◽  
Author(s):  
Patricia H. Schoch ◽  
Anthony Ranno ◽  
Donald S. North

OBJECTIVE: To report a case of ketorolac tromethamine-induced acute renal failure and to discuss the risk factors that make patients more susceptible to the renal effects of nonsteroidal antiinflammatory drugs (NSAIDs). DATA SOURCES: Case reports and review articles identified by MEDLINE. Indexing terms included ketorolac, renal failure, and NSAIDs. DATA EXTRACTION: Data were abstracted from pertinent published English-language sources and were reviewed by all authors. DATA SYNTHESIS: Ketorolac is an intramuscularly administered NSAID with many of the same adverse effects associated with other oral NSAIDs. Although reversible depression of renal function has been associated with several NSAIDs, to date there have been no published reports of acute renal failure secondary to ketorolac administration. A 71-year-old woman received three doses of ketorolac to control the pain associated with pelvic and T11–T12 compression fractures. Over the next two days, the patient developed signs and symptoms of acute renal failure, including significant increases in blood urea nitrogen, serum creatinine, and peripheral edema. These signs and symptoms resolved over the next three to four days. Certain risk factors, several of which were present in this woman, make individual patients more susceptible to the renal affects of NSAIDs. These risk factors include advanced age, cirrhosis, volume depletion, congestive heart failure, gastrointestinal bleeding, and preexisting mild renal dysfunction. CONCLUSIONS: Caution should be taken when initiating ketorolac or any NSAID therapy with specific attention to risk factors that predispose a patient to renal dysfunction.


2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Edward Gildeh ◽  
Zaid Abdel-Rahman ◽  
Ruchira Sengupta ◽  
Laura Johnson

Mycobacterium celatumis a nontuberculous mycobacterium shown to cause symptoms similar to pulmonaryM. tuberculosis. Certain strains have been shown to cross-react with the probes used to detectM. tuberculosis, making this a diagnostic challenge. We present a 56-year-old gentleman who developed signs and symptoms of lung infection with computed tomography scan of the chest showing right lung apex cavitation. Serial sputum samples were positive for acid-fast bacilli and nucleic acid amplification testing identifiedM. tuberculosisribosomal RNA, resulting in treatment initiation. Further testing with high performance liquid chromatography showed a pattern consistent withM. celatum. This case illustrates the potential forM. celatumto mimicM. tuberculosisin both its clinical history and laboratory testing due to the identical oligonucleotide sequence contained in both. An increasing number of case reports suggest that early reliable differentiation could reduce unnecessary treatment and public health intervention associated with misdiagnosed tuberculosis.


2005 ◽  
Vol 39 (11) ◽  
pp. 1897-1902 ◽  
Author(s):  
Masha SH Lam

OBJECTIVE To review the clinical evidence for routine use of bleomycin test dosing. DATA SOURCES English-language review articles, references from retrieved articles, case reports, and clinical trials were identified from a MEDLINE literature search (1966–July 2005). Key search terms included bleomycin, test dose, anaphylactic reactions, and hypersensitivity. Information from an unpublished E-mail survey, the manufacturer, and the Internet was also used. DATA SYNTHESIS Early clinical trials and isolated case reports suggest that bleomycin-induced acute hypersensitivity reactions occur in 1% of patients with lymphoma and <0.5% of those with solid tumors. The reactions are mainly characterized by high-grade fever, chills, hypotension, and in a few cases, cardiovascular collapse, which can lead to death. The exact mechanism of these reactions is unclear, but is thought to be related to the release of endogenous pyrogens from the host cells. Evidence does not suggest any correlation between doses and the onset or severity of the reactions. Supportive care, including hydration, steroids, antipyretics, and antihistamines, may resolve the symptoms. However, it may not completely prevent recurrences. CONCLUSIONS The incidence of acute hypersensitivity or hyperpyrexic reactions associated with bleomycin is very low, but the reaction is potentially fatal. Clinicians should monitor their patients for any signs and symptoms of acute hyperpyrexic reactions during bleomycin administration. Since the onset of the reactions can occur with any dose of bleomycin and at any time, routine test dosing does not seem to predict when drug reactions may occur.


2021 ◽  
Vol 11 ◽  
Author(s):  
Miranda L. Camet ◽  
Anne Spence ◽  
Susan S. Hayashi ◽  
Ningying Wu ◽  
Jennifer Henry ◽  
...  

BackgroundSensorineural hearing loss is a well-known side effect of cisplatin (CDDP). There is limited research on the effect of dosing, infusion times, and schedules of cisplatin administration and their impact on hearing loss.MethodsA retrospective review of 993 pediatric patients’ medical and audiological charts from August 1990 to March 2015 was conducted using stringent inclusion criteria to characterize patients with hearing loss. 248 of these patients received CDDP. Of these, 216 patients had sufficient CDDP infusion data to assess for sensorineural hearing loss attributable to CDDP and its associated risk factors. Chart reviews were performed to extract clinical data including CDDP dosing information. Demographic and clinical characteristics were summarized by descriptive statistics, and univariate and multivariate logistic regressions were performed to examine the relationship between hearing loss and specific parameters of cisplatin administration (amount infused per dose, prescribed infusion time, total number of doses, number of doses per cycle, number of cycles, cumulative cisplatin exposure). Stepwise variable selection procedure was performed in the multivariate model building to extract the best subset of risk factors for the prediction of hearing loss and worsening ototoxicity grade using an established ototoxicity grading scale from the International Society of Pediatric Oncology (SIOP).ResultsA total of 153 patients with complete medical and audiologic data were evaluable for analysis. Hearing loss was identified in 72.6% of the patients. Multivariate analysis revealed that age [OR=0.90 (0.84-0.97), p-value=0.0086], radiation to any part of the body, [OR=3.20 (1.29-7.93), p-value=0.012], amount infused per dose (mg/m2) [OR=1.018 (1.002-1.033), p-value=0.029], and cumulative cisplatin exposure (mg/m 2) [OR=1.004 (1-1.008), p-value=0.027] were associated with hearing loss. Similar associations were also found between these risk factors and worsening SIOP grade.ConclusionIn one of the largest studies examining the influence of CDDP dosing and schedules on hearing loss, we found the amount of CDDP infused per dose is a significant risk factor. Considerations in designing regimens that reduce the amount of CDDP infused per dose may reduce the risk of hearing loss. Randomized prospective trials are needed.


2015 ◽  
Vol 22 (6) ◽  
pp. 771-796 ◽  
Author(s):  
Dubem I. Ikediashi ◽  
Stephen O. Ogunlana

Purpose – The purpose of this paper is to extend the body of knowledge on healthcare facilities management (FM) by investigating the risks associated with outsourcing of FM services in hospitals. Design/methodology/approach – The paper relied on two strands of methodology common with pragmatic research. Questionnaire survey (QS) used data from 208 respondents representing ten hospitals while three out of the ten hospitals involved in the QS were selected based on their willingness to enter the case study (CS) interview. Data collected were analysed using descriptive and inferential statistics for QS and using narrative techniques by discussing themes, sub-themes for the CS. Findings – Findings established 24 out of the 35 risk factors as critical, four factors as somehow critical, and five factors as not critical. Besides, nine risk factors were found to be significantly loaded on the five risk categories. The rank analysis also revealed that the top five critical risk factors are: inexperience and lack of requisite skills; possibility of fraud by vendor; financial failure of chosen vendor; vendor opportunism; and fall in morale of employees. Originality/value – The study provides an unambiguous contribution to exiting body of knowledge on outsourcing risks as it relates to healthcare FM. It reinforces the theory that risks exist in any form of relationship but developed a distinct body of factors associated with outsourcing of FM services particularly from the context of Nigeria’s public healthcare sector.


2002 ◽  
Vol 126 (11) ◽  
pp. 1382-1386 ◽  
Author(s):  
Craig S. Kitchens

Abstract Objectives.—To review the literature for conditions, diseases, and disorders that affect activity of the contact factors, and further to review the literature for evidence that less than normal activity of any of the contact factors may be associated with thrombophilia. Data Sources.—MEDLINE search for English-language articles published from 1988 to 2001 and pertinent references contained therein, as well as search of references in recent relevant articles and reviews. Study Selection.—Relevant clinical and laboratory information was extracted from selected articles. Meta-analysis was not feasible because of heterogeneity of reports. Data Extraction and Synthesis.—Evidence for association of altered levels of the contact factors and thrombophilia was sought. A wide variety of disorders is associated with decreased activity of the contact factors; chief among these disorders are liver disease, hepatic immaturity of newborns, the antiphospholipid syndrome, and, for factor XII, being of Asian descent. These disorders are more common than homozygous deficiency. The few series and case reports of thrombophilic events in patients homozygous for deficiency of contact factors are not persuasive enough to support causality. The apparent association between levels consistent with heterozygosity (40%–60% of normal) of any of the contact factors (but especially factor XII) in persons with antiphospholipid antibodies appears to be due to falsely decreased in vitro activity levels of these factors, which are normal on antigenic testing. The apparent association with thrombosis is better explained by the antiphospholipid syndrome than by the modest reduction of the levels of contact factors. Conclusions.—Presently, it is not recommended to measure activity of contact factors during routine evaluation of patients who have suffered venous or arterial thromboembolism or acute coronary syndromes.


1998 ◽  
Vol 7 (1) ◽  
pp. 73-76 ◽  
Author(s):  
LJ Miller ◽  
R Wiles-Pfeifler

OBJECTIVE: To report a case in which propofol was used successfully in an intubated patient on a prolonged basis and to review the literature that discusses long-term infusions (&gt; 7 days) of propofol. METHODS: Information was retrieved from a MEDLINE search of the English-language literature. Reports of clinical trials and case reports that compared the safety and efficacy of long-term propofol and midazolam were included in this review. Information about the study design and the efficacy and adverse effects of the drugs was collected, and the data were synthesized. RESULTS: Clinical reports indicate that a long-term infusion of propofol is comparable in safety and efficacy to a long-term infusion of midazolam. The distinct adverse-effect profile of long-term use of propofol, including hypertriglyceridemia, was evaluated and reported as significant. CONCLUSION: The limited data available suggest that long-term infusion of propofol is a practical alternative to use of standard agents for sedation of intubated patients. Adverse effects such as cardiovascular depression, respiratory depression, and hypertriglyceridemia may limit the routine use of propofol.


Viruses ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 886 ◽  
Author(s):  
Ryan D. Pardy ◽  
Martin J. Richer

For the first 60 years following its isolation, Zika virus (ZIKV) remained a relatively poorly described member of the Flaviviridae family. However, since 2007, it has caused a series of increasingly severe outbreaks and is now associated with neurological symptoms such as Guillain-Barré syndrome and congenital Zika syndrome (CZS). A number of reports have improved our understanding of rare complications that may be associated with ZIKV infection in adults, the areas of the body to which it spreads, and viral persistence in various tissues. Likewise, studies on the effect of ZIKV infection during pregnancy have identified risk factors for CZS and the impact this syndrome has on early childhood. Understanding these outcomes and the factors that drive ZIKV pathogenesis are key to developing vaccination and therapeutic approaches to avoid these severe and potentially debilitating symptoms.


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