(a.) Seldom happening or occurring; rare; uncommon; unusual.
Example Sentences:
(1) Surgical repair of the rheumatologic should however, is performed rarely, and should be reserved for the infrequent cases that do not respond to medical therapy.
(2) Despite of the increasing diagnostic importance of the direct determination of the parathormone which is at first available only in special institutions in these cases methodical problems play a less important part than the still not infrequent appearing misunderstanding of the adequate basic disease.
(3) Significant side-effects occurred infrequently and only 2 children lost weight during the period of medication.
(4) At 7 days axonal swellings were infrequently observed and the main structural feature was a reduction in myelin thickness in affected nerve fibers.
(5) In view of its infrequent and vague presentation, care is required to avoid overlooking the diagnosis of abdominal tuberculosis, particularly in the immigrant population.
(6) Allelic complementation was not observed, despite testing of a large number of allele pairs, and alleles suppressible by the ochre suppressor SUP11 were absent from a sample of 48 spontaneous mutants and occurred infrequently (7%) among a sample of ultraviolet-induced mutants.
(7) Social isolation, characterized by extremely infrequent contacts with other people, affects approximately one out of ten elderly people.
(8) This device is a possible improvement in the treatment of infants needing long term venous access, although doctors should be aware of the infrequent complications.
(9) This has been infrequently reported to occur during general anesthesia and to cause respiratory embarrassment, representing a significant hazard.
(10) Although runaway is infrequent with current generation pacemakers, it should be considered in addition to the more common causes of pacemaker malfunction in the patient with appropriate symptoms.
(11) Unequivocal interstitial deposits were infrequent and IgM was present in blood vessels in one patient only.
(12) In contrast, control Y79 cells not exposed to medium conditioned by RPE cells exhibit only infrequent neuronal phenotypes.
(13) In a series of over 200 patients, raised values were found frequently in hepatobiliary disease and infrequently in bone disease.
(14) Further, from the plateau values of the ratios, it follows that the substrates dissociate very infrequently from the ternary complex and that at a low substrate concentration 72% of the reaction follows the pathway in which ATP adds first to the enzyme.
(15) We conclude that this neuropathy, which is quite different from the infrequent peripheral nerve syndromes previously described in this illness, is commonly present in late Lyme disease.
(16) Biopsy of lymph nodes or brain and serologic tests needed for definitive diagnosis were done infrequently.
(17) Hematological side effects of neuroleptic drugs occur infrequently but remain a potential cause of serious toxicity.
(18) Four peaks (I, II, III, V) were present in all recordings, and a fifth (IV) was present infrequently.
(19) The gonadotrophin response to oestrogen levels was temporarily or permanently disordered in all but 3 patients in this series, whereas an ovarian refractoriness to gonadotrophins was only infrequently observed.
(20) Interhemispheric subdural hematoma (ISDH), although not infrequent in children, has been rarely encountered in adults.
Sporadic
Definition:
(a.) Occuring singly, or apart from other things of the same kind, or in scattered instances; separate; single; as, a sporadic fireball; a sporadic case of disease; a sporadic example of a flower.
Example Sentences:
(1) Mutational mosaicism was used as a developmental model to analyze 1,500 sporadic and 179 familial cases of retinoblastoma from the world literature.
(2) TR was classified as follows: severe (massive systolic opacification and persistence of the microbubbles in the IVC for at least 20 seconds); moderate (moderate systolic opacification lasting less than 20 seconds); mild (slight systolic opacification lasting less than 10 seconds); insignificant TR (sporadic appearance of the contrast medium into the IVC).
(3) High mortality, severe destruction of pancreatic B-cells and presence of sporadic mononuclear infiltrations in islets and around excretory ducts were observed.
(4) Progressive sporadic myopathy in association with Down's syndrome has not been reported previously.
(5) After examining the cases reported in literature (Sacks, Barabas, Beighton Sykes), they point out that, contrary to what is generally believed, the syndrome is not rare and cases, sporadic or familial, of recurrent episodes of spontaneous rupture of the intestine and large vessels or peripheral arteries are frequent.
(6) This study examines the morphology of sporadic congenital microphthalmia in 1-day-old chicks, with particular emphasis on the neural retina.
(7) 18 patients with typical sporadic Amyotrophic Lateral Sclerosis (ALS) were investigated by the Motor Accuracy and Speed Test (MAST) and 18 healthy age- and-sex-matched volunteers, acted as controls.
(8) Instead, we suffer sporadic exhibitions, which they call consultation.
(9) Fairly frequently the patients complained about mucosal dryness and sporadically about dyspeptic symptoms, but these symptoms were not disturbing the course of the treatment.
(10) Women with a history of recurrent spontaneous abortions (repeaters) are compared with women who have had live births and no spontaneous abortions (multiparae) and women who have had live births and only one spontaneous abortion (sporadics) to identify characteristics of the women and their abortuses that might predict subsequent fetal loss.
(11) DNA studies were undertaken following 53 requests from pregnant women at risk for Duchenne and Becker muscular dystrophy, including 32 in whom there was only 1 affected individual in the family (sporadic cases).
(12) To date we have analysed members of 28 DMD families (10 familial, 18 sporadic) and six BMD families (four familial, two sporadic) with the closely linked pERT probes 87-1, 87-8, and 87-15 (DXS164).
(13) The autonomic centers in the brain-stem and cerebellum were systematically affected in both the sporadic and the hereditary cases.
(14) After intrauterine inoculation E. coli was isolated from the uterus up to 30 days, and sporadically from the kidneys and urinary bladder, but not from the liver.
(15) In sporadic cases this may have serious implications.
(16) Associated non-urogenital anomalies, although more frequent in sporadic cases, have been reported in HRA.
(17) Six patients without abnormal clones had more than 20% metaphases with random heteroploidy and sporadic structural anomalies.
(18) AIDS, having presented itself as a sporadic and ill defined entity, remained unrecognized in Central Africa until the outset of the present outbreak.
(19) The time-related incidence of these cells entities--the appearance of "dusk" and "bright" cells at 5 min, transitory domination of "bright" cells and the nadir of "dusk" cells at 20 min, sporadic recognition of "bright" cells, lack of "dusk" cells at 45 min and the absence of both cell forms at 180 min--displayed that LP-reactive response promptly appeared and rapidly ceased.
(20) The results of virological investigations on 492 sporadic cases with a clinical diagnosis compatible with an enterovirus etiology studied in Lombardy between 1965 and 1972 are reported.