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C T Venturini

Publications and source records attributed to C T Venturini.

5 recordsLinked to original sources
PubMed1995

Hearing loss in short- and long-term haemodialysed patients.

BACKGROUND: Hearing loss has been described in patients with chronic renal failure on regular dialysis treatment (RDT) with very different frequency, ranging from 20 to 75%; RDT does not seem to worsen hearing function for at least the first 5 years of treatment; no studies are available on patients on RDT for more than 10 years. METHODS: We performed an audiometric evaluation in 91 patients on RDT for various periods: group I (34 patients), < 5 years; group II (32 patients), 5-10 years; group III (25 patients), > 10 years; patients with histories of chronic otitis, ototoxic drug treatment, and chronic auditory trauma were excluded; the possible correlations with some biochemical parameters (urea, creatinine, PTH) were also looked for. RESULTS: Hearing loss was present in 77% of patients and 69.2% of ears; the percentage of patients with hypoacusia was higher in group III (84%) than in group I (76.3%) and II (71.7%), but the differences were not statistically significant. Hypoacusia was cochlear neurosensory in 61.5%, conductive in 6.5%, and mixed in 9.0% of patients; the percentage of patients with cochlear neurosensory hypoacousia was similar in the three groups (I, 61.7%; II, 59.3%; III, 64%). Hearing loss was of slight to moderate degree and not different in the three groups (I, 22.7 +/- 15 dB; II, 26.9 +/- 6.0 dB; III, 29.1 +/- 8.9 dB). There were no correlations between hearing loss and plasma creatinine and PTH values; patients with plasma urea > 200 mg/dl had higher percentage of hypoacousia (86%) than patients with plasma urea < 200 mg/dl (69%) (P = 0.06). CONCLUSIONS: Hearing loss, mainly cochlear neurosensory in type, is present in a high percentage of patients on RDT even at the beginning of treatment, but no negative effects on hearing can be correlated with the duration of dialysis.

Adult↗
PubMed1993

Evoked potentials (VEPs and BAEPs) in a large cohort of short- and long-term haemodialysed patients.

To evaluate the presence and the severity of uraemic encephalopathy (UE) in regular dialysis treatment patients in relation to dialytic age, pattern reversal visual evoked potentials (PRVEPs) and brainstem auditory evoked potentials (BAEPs) were respectively performed in 86 and 98 patients on haemodialysis for 1-194 months, divided into three subgroups according to dialytic age (group 1, < 5 years of regular dialysis; group 2, 5-10 years; group 3, > 10 years). VEPs in the whole group of 86 patients and in each subgroup with different dialytic age differed significantly from controls for both eyes, 41.7% of whom had pathological P100; no differences were observed between the three subgroups. BAEPs were pathological in 9.7% of the ears and 18.4% of patients. On the right ear the three subgroups were significantly different from controls in the latencies of peaks III and V; subgroup 2 and 3 differed from controls in the I-V interpeak, while the interpeak I-III was different from controls only in subgroup 3. On the left ear the three subgroups differed significantly from controls in the latencies of peak V; subgroup 2 and 3 were significantly different from controls in the latency of peak I; subgroup 3 was different in the peak III latency; subgroup 1 and 3 were different from controls in the interpeak I-V; no differences were observed in BAEPs between the three subgroups with increasing dialytic age. No significant correlations were found between the neurophysiological parameters and some biochemical parameters (urea, creatinine, PTH).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗