Biomedical subjects

P P Valli

Publications and source records attributed to P P Valli.

14 recordsLinked to original sources

PubMed2000

[Hyperhydration with low mineral Rocchetta water after extracorporeal lithotripsy].

Both prophylaxis and stone-free status after ESWL are most important goals in treating urinary stone disease, because his high social cost. In order to this situation, we matched two homogeneous groups of patients that underwent ESWL because renal stones: during a one year follow-up with several US controls, daily 1.5 litres of low mineral content water was drank by I group patients; vice versa, daily 3 litres (1st ten days) and afterwards 2 litres of Rocchetta low mineral content water was drank by II group patients. This last kind of approach led to a significant improvement in stone fragments elimination time, in inferior calix stone cure and in stone recurrences rate. So we conclude that hyperhydration using right low mineral content water, is a simple and cheap way to improve both treatment and prophylaxis of urinary stones.

Drinking↗

PubMed2000

[Radiofrequency percutaneous ablation in prostatic hypertrophy].

The authors describe both procedure details and results in treating benign prostatic hyperplasia (BPH) by a transcutaneous radiofrequency ablation (TRAP). Using a "cool-tip" needle/electrode, they obtained a large cavitation or a collapse (urethral damage free) of the adenoma, the different result depending on the utilized radiofrequency (RF) energy and the site of application. In this procedure, the US control of the RF effect appears more careful than the "lassic transurethral treatment (TUNA) and it's suitable in prostate's peripheral zone also. The manoeuvre is performed with local or peripheral anaesthesia, is well deobtruent and have not risk of bleeding or other peri-operative complications.

Electrocoagulation↗

PubMed1996

[Echo-guided drainage of pararenal and pelvic fluid accumulations: technique, indications, and results].

Percutaneous echoguided drainage of retroperitoneal collections is to be considered a recommendable technique which guarantees a good percentage of success and a complete resolution of the effusions and also gives a low percentage of complications. The drainage can be made through a simple percutaneous needle puncture or through a catheter which is kept for some days. The latter technique done by Seldinger or Trocar's method, guarantees more possibilities of success. The systemic echographic control during the post-operatory period of the urological patients have permit to find out the high frequency of small fluid effusions (haematic, urinary or lymphatic) in the operation area; not all the collections need a treatment. The urinary collections or those with clinical signs of anemia have to be drained. In the presence of small haematic or lymphatic collections, the ultrasonography follow-up shows almost always a progressive volume reduction with a following disappearance. Percutaneous drainage has to be performed in the presence of a large collection (more than 5 cm of diameter), in the case of a persistent collection or when patient presents with clinical features of infection.

Drainage↗

PubMed1996

[Echographic follow-up after radical prostatectomy].

The abdominal and transrectal ultrasound is of a great importance in the follow-up and in the early postoperatory control in the patients which have undergone a radical prostatectomy. The abdominal ultrasonography can be used to identify the presence of abdominal or pelvic fluid collections in the postoperative period or to evaluating the upper urinary tract. Ultrasonography has come to play a primary role in the detection of lymphonodal and/or parenchymal metastasis. Transrectal ultrasound permits to identify the local illness relapse, whereas the ultrasonography examination during micturition allows the functional study of the bladder neck. Moreover, transrectal ultrasound is useful in guiding biopsy needle into a specific lesion seen on the sonogram in the perianastomotic region whereas random ecoguided biopsy in the perianastomotic area is necessary in patients with signs of recurrent cancer even in the absence of suspicious areas.

Adenocarcinoma↗

PubMed1996

[Lobar nephritis: echographic diagnosis and follow-up].

Acute lobular nephritis is a focal bacterial infection localizer within the parenchyma of the kidney which may develops with abscess formation; clinical features of such evolution include, fever, chills, flank pain and the hematological findings of infective disease. Echographic pattern includes a law-level echogenic mass with a central hypoechoic or echo-free with sometimes may deform renal profile. Clinical picture and echographic pattern allow the diagnosis of acute lobular nephritis. In the present work we report 3 cases of lobular nephritis on which ultrasound study has permitted the correct diagnosis equally to TC and RM which also was performed. Furthermore the ultrasound imaging is a valid method to appreciate the clinical evolution of patient during therapy.

Acute Disease↗

PubMed1996

[Carcinoma of the prostate: correlation between local staging and systemic progression].

Management of prostate cancer requires considerable economic and social efforts and may causes some discomfort to patient. To attempt a simplification of the prostate cancer follow-up (dosage of PSA, ultrasound and abdominal and pelvic TC and/or RM, bone scan, X-ray chest and X-ray bone), Authors have review the patients with prostatic cancer who were undergone to a conservative treatment with hormonal and/or radiation therapy. From January 1984 to September 1995, 136 patients have been evaluated in the Urological Department of University of Perugia. Local staging cancer has been made according to TNM system. Ultrasound transrectal follow-up study (TRUS) we made through longitudinal and/or transversal scans. The echographic features have been evaluated are the prostate size, volume and echogenic pattern of cancer, extracapsular extention and, finally, the echographic appearance of surrounding tissues (seminal vesicles, rectum, bladder). In 116 patients (85.3%) Authors found a good correlation of clinical course and the results of the investigations whereas in 20 patients (14.7%) such correlation falls to be demonstrated. Although PSA level remains an important prognostic marker for monitoring patients with prostatic cancer, TRUS is useful to determinate not only the local status but also to predict the subsequent clinical course of these patients. The later could be performed at least twice a year whereas further investigations could be prescribed only in presence of clinical suspicious of metastasis. It can be concluded that TRUS and PSA levels are sufficiently safe indexes on follow-up of prostate cancer which can replace the most expensive examinations avoiding an unnecessary cost to the health care system. Furthermore TRUS can recognize patients with urine flow obstruction who may benefit by treatment with improvement of their quality of life.

Adenocarcinoma↗

PubMed1994

[Urethral diverticuli in women: role of diagnostic methods in the preoperative assessment].

From 1985 to 1993 we observed 9 female patients with urethral diverticula. All patients underwent first clinical examination and then US (suprapubic and transrectal or transvaginal scans) and X-ray cystography which demonstrated the communication between the diverticula and the urethra, MRI was also performed, in order to explain the rapports between the diverticulum and the sphyncter. All patients underwent surgery and 8 were cured. No cases of incontinence were observed.

Adult↗

PubMed1994

[Locally advanced prostatic cancer and systemic involvement].

In a group of 115 patients with prostatic cancer, the correlation between the local and systemic evolution of the neoplasm has been evaluated. In 80 patients non local and systemic up-staging of the tumor was observed. In further 18 patients both local and systemic staging uppers and in the remaining 17 patients no correlation between local and systemic evolution was observed. In conclusion, in this series, the prostatic cancer demonstrated an high concordance in both local and systemic evolution and then the modifications of local staging can be used as a predictive parameter of systemic evolution of the prostatic cancer.

Follow-Up Studies↗

PubMed1994

[Echographic features of testicular neoplasms. Our experience].

14 patients with primitive testicular cancer underwent US and afterwards surgery. A comparison between echo-pattern and hysto-pathology was done with the following results: sharp limits and ipoechoic homogeneous pattern in leydigioma and low-staging seminoma. Presence of anechoic areas and irregular limits: teratoma and embrionary carcinoma with no correlation with the staging. Inclusively no correlation between echo-pattern and staging of neoplasm or presence of neoplastic lymphnodes was observed.

Humans↗

PubMed1993

[Echo-guided percutaneous drainage of renal cysts].

Treatment of renal cysts in the ultrasound guided percutaneous drainage, associated with intra-cavital sclerosis-inducing agents to avoid recurrence, is often proposed. This report describes the technique and the most suitable sclerosis inducing agents. The best results are obtained with alcohol. No increase in complications or discomfort was observed.

Adult↗

PubMed1993

[Echography during drug-induced erections in the study of penile plastic induration].

Clinical investigation is still fundamental in the diagnosis of La Peyronie's disease. In this study 36 patients underwent clinical investigation and ultrasound in basal conditions and during drug-induced erection, and the results were compared. In basal condition US does not provide much useful supplementary informations. During drug-induced erection US accurately visualizes plaque site and dimensions and anatomical abnormalities about corpora cavernosa, albuginea, septum and dorsal vessels.

Adult↗

PubMed1993

[Vesico-intestinal fistula in Crohn disease: the role of echography in its diagnosis].

Ultrasound is in widespread use in the study of gastrointestinal pathologies. In Crohn disease it is helpful in diagnosing complications such as thickening of the bowel loop walls, abscesses, lymph node enlargement and vesical-enteric fistulas. This report presents two cases in which vesical-enteric fistulas were visualized by US; confirming a diagnosis of Crohn's disease in one case, and diagnosing the fistula during the follow-up in the second patient in whom Crohn's disease had previously been diagnosed.

Adult↗

PubMed1993

[Traumatic injuries of the urethra: an echographic study].

US in the lower urinary tract usually explores the bladder and the prostatic urethra. In this study we used US instead of x-rays to visualize the remaining urethra in 42 patients. US was useful in the presence of urethral trauma. The site and extent of injury, particularly peri-urethral lesions (hematomas, urinary collection and abscesses in relation to the urethra) were observed. Ultrasound's efficacy and reproducibility were also useful in post-operative follow-ups.

Adult↗

PubMed1992

[Role of ultrasonography in the follow-up of surgically treated patients. Upper urinary tract. Complications after conservative surgery].

The Authors describe the purposes of ultrasonographic follow-up after both conservative surgery and endoscopic or endourological operations of the upper urinary tract. In these cases ultrasonography evaluates the results of normal surgery, the presence of early or late complications, and of iatrogenic lesions. The echo-patterns of deformations in the outline of the kidneys, of hematic, urinary or lymphatic collections (both retroperitoneal and intraperitoneal), of fistulas, of sclero-lipomatosis and of post-cicatrization hydronephrosis are described. The importance of evaluating the degree of obstruction by a dynamic ultrasonographic study with furosemide-test is emphasized. The ultrasonographic monitoring of urethral and pyelostomy setting of catheters is also described. The echo-patterns of retroperitoneal and intraperitoneal fluid collections and renal hematomas, in relation also the kind of fluid contained are widely discussed.

Endoscopy↗