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Biomedical subjects

M Henriet

Publications and source records attributed to M Henriet.

At least 19 recordsLinked to original sources

[A surgical approach to Holmes' tremor associated with high-frequency synchronous bursts].

INTRODUCTION: The effectiveness of thalamic stimulation is now clearly demonstrated for essential tremor, but remains to be demonstrated for other types of tremor. OBSERVATION: A young woman presented Holmes' tremor resulting from a pontine tegmental hemorrhage related to an arteriovenous malformation. A surgical approach was considered when major functional impairment persisted at 2-year follow-up despite drug therapy. The patient underwent unilateral thalamic deep brain stimulation (Vim); major improvement persisted at eighteen months follow-up. CONCLUSION: This observation is in line with previous reports suggesting that thalamic surgery can be one of the best options for treating medically intractable Holmes' tremor. The mechanism underlying the tremor, implying dentate-rubro-thalamic pathways is discussed. Moreover, the patient exhibited short periods of 16Hz tremor when her arms were maintained outstretched. Thalamic stimulation also appears to be effective for these high-frequency synchronous cerebellar bursts.

Adult↗

[Acute motor axonal neuropathy with favourable outcome after Salmonella Ohio infection].

We report one patient presenting an acute weakness following an infection with Salmonella Ohio. Diagnosis was Guillain-Barré syndrome (GBS). However, preservation of reflexes and electrophysiological study showing purely axonal pattern make this case different from typical GBS. Outcome was favourable. There are probably various forms of GBS and the axonal form do not always carry a bad prognosis as previously reported.

Adult↗

[Reversible dementia and polyneuritis in an elderly woman: a case of late-onset disseminated lupus erythematosus].

Reversible dementia and polyneuropathy in an elderly woman: a case of late onset systemic lupus erythematosus. We report the case of a 76-year-old woman with undiagnosed systemic lupus erythematosus. She presented with severe dementia. She was given prednisolone 20 mg daily with dramatic improvement occurring within one month. Electrophysiological study showed evidence of axonal neuropathy.

Aged↗

[Lambert-Eaton syndrome. Apropos of 2 cases].

Lambert-Eaton syndrome is a myasthenia-like syndrome of paraneoplastic origin which is often associated with anaplastic small-cell lung cancer. It seems to be an autoimmune disease responsible for a deficit of acetylcholine ejection in the motor end plate. On the occasion of two recent cases, we review the clinical, physiopathological and diagnostic aspects of this paraneoplastic syndrome.

Aged↗

[Opsoclonus associated with multisystemic sarcoidosis].

A 32 year old patient with unexplained cough developed an opsoclonus-ataxic-myoclonic syndrome. Chest X-ray film were normal at this onset but became pathologic, and the diagnosis of multisystemic sarcoidosis was made. The possibility of sarcoidosis being the cause of the opsoclonus is discussed.

Adult↗

[Extracorporeal lithotripsy by shock waves. Initial results (322 cases)].

Results of 322 patients treated with extracorporeal shock wave desintegration are reported (277 patients treated with the Dornier lithotripter, 45 patients treated with Solonithe using ultrasonic stone location). Lesions treated included 168 caliceal, 111 pyelic, 23 ureteral and 21 coralliform calculi. 45 patients presented multiple and 28 bilateral renal lithiasis. Stones were mainly between 10 and 20 mm in diameter (157 patients) but were less than 10 mm in size in 110 cases and more than 20 mm in 55. For poorly opaque stone, lithotripsy was performed after ultrasound localization with the Sonolithe apparatus. The Dornier machine was used to treat 277 patients during 308 sessions, equivalent to an 11% repeat rate. Fragmentation was excellent in 84% of cases after a single session, and 5% of stones could not be fragmented and required complementary therapy. Out of 200 patients reviewed after 3 months, only 8% had residual fragments (92% success rate), 5% having to undergo auxillary endoscopic manoeuvres: stenting ureteral catheter (4 cases); percutaneous nepholithotomy (3 cases); ureteroscopy (7 cases). Septic complications (6 patients) responded well to antibiotic treatment. Renal colic or pain was recorded in 25% of cases. One kidney was non-functional at 3 months due to distal ureteral obstruction without subsequent dilatation of the collecting system. Out of 45 patients treated with the Sonolithe, 3 (6.6%) were failures of fragmentation and 85% had satisfactory results. After a minimum follow up of 3 months, 20/22 patients were free of residual calculi, and there were no complications.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

[Role of renal autotransplantation in the treatment of renal arterial lesions].

112 patients with hypertensive lesions of the renal artery were studied. 33 patients with stenosis of the trunk of the renal artery were operated with autotransplantation. 10 patients had lesions of the main branches of the renal artery and in these cases autotransplantation with the anastomosis of the two main renal artery branches to the two main branches of the hypogastric artery was performed. 24 patients with complex lesions of renal artery branches were treated with autotransplantation associated with extracorporeal repair of the renal artery. 45 patients, with lesions of the trunk of the renal artery were operated by aortorenal bypass. For lesions of the main renal artery, results were better in the group of patients treated by simple autotransplantation (82% of patients cured versus 46% with bypass operation). For lesions involving multiple branches of the renal artery extracorporeal replacement of the renal artery followed by autotransplantation often represents to the sole technique to prevent nephrectomy. Hypertension was cured or improved in more than 80% of cases. We believe autotransplantation to be the best operation for lesions of the renal artery in most cases.

Adult↗

[Technic and results of ureteroscopy for ureteral lithiasis. Apropos of 54 ureteroscopies].

Rigid ureteroscopy has been performed 54 times in 49 patients with ureteral stones. In 72% of the cases stones were removed or disintegrated with the ultrasound or electrohydraulic probe. Best results were obtained in the pelvic ureter (96,5% success). In the lumbar ureter only 56% success was obtained. Complications were observed in 15% of the cases, however only one complication necessitated an immediate open surgical operation.

Endoscopy↗

[Cancer of the prostate: role of surgery in the evaluation of lymph node extension].

None of the non surgical methods for investigations of the lymph node extension of prostate carcinoma is entirely satisfactory. However, the risk of lymphatic extension is correctly appreciated when the initial tumor is well documented by rectal examination and endo-rectal ultrasonography. Histology shows an increasing interest. IVP, CT scan are of little interest for micrometastases while the results of lymphography are improved by cytoaspiration of abnormal models. Lymphadenectomy gives the most accurate appreciation of the lymphatic extension. The reliability of frozen sections interpretation is now very satisfactory. When limited to the triangle: external iliac artery, internal iliac artery and obturator fossa, the morbidity is reduced. In case of negative lymph nodes, radical prostatectomy gives to the patients a reasonable chance of complete cure.

Biopsy, Needle↗

[Treatment of urinary incontinence of neurologic origin in children and adolescents].

Recent advances in the treatment of urinary incontinence of neurological origin in children are discussed. The etiology of the neurological changes is mainly congenital (myelomeningocele, sacral agenesis and hidden dysraphism) other causes such as myelitis, radiculitis or cord injuries being very rarely observed. Two fundamental elements can be evaluated by radiologic and urodynamic investigations of the lower urinary tract: the capacity for compliance of the detrusor muscle and the degree of cervico-urethral resistance. The presence of a cervico-urethral obstruction is no longer an indication for its removal but, on the contrary, a factor that can be retained to assist continence. Intermittent use of self-catheterization enables the obstruction to be used to obtain continence (dryness) and makes the obstruction innocuous, since it enables emptying of the bladder. Of 50 patients (26 girls and 24 boys) treated in this way, 11 were not seen again, but the other 39 are still being followed up after an average of 50 months. This method of bladder emptying maintains the integrity of the upper urinary tract when this was normal previously and improves uretero-pyelo-caliceal distension. Uretero-vesical reimplantation can prevent reflux. Of these 39 children, 23 are continent during the day and 13 among them during the night also. A colocystoplasty was performed in 3 cases to enlarge the bladder capacity. The use of a catheter is well accepted by the girls and young boys but less so by the male adolescents. In the absence of a cervico-urethral obstruction it is impossible to relieve incontinence by re-education, and only three solutions exist: high cutaneous diversion continent cystostomy and artificial sphincter. The high diversion operation should be used as a last resort only. The continent cystostomy uses an appendix isolated on its mesothelium an opening on the abdominal wall and into the bladder in a long anti-reflux tunnel. Catheterization is by a catheter which passes through the newly formed ureter and enables the bladder to be siphoned dry four times daily. This method was used in 25 patients but many complications developed, including febrile attacks with dilatation of the upper urinary tract due to too small a bladder under increased pressure (an enlarging colocystoplasty was required). Eight other children continued to have urine loss through the urethra and required repeated closure of the bladder neck, and one child developed a bladder stone.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗

Comparative study of the clinical effects of vincamine + glycerol versus glycerol + placebo in the acute phase of stroke.

The treatment of the acute phase of stroke creates a difficult problem to the clinician. The presently used drugs lead to controversial results. The progress in knowledge of the pathogenesis of cerebral damage underlines the determinant role of the metabolic deficits in the ischemic areas. The effect on the clinical symptomatology of patients in the acute phase of stroke was studied during a double-blind comparative clinical trial with an alcaloid of Vinca minor (Pervincamine) which acts favorably against disturbances of oxydative glucose metabolism and of cerebral microcirculation. 20 patients divided into two homogeneous groups received during 5 days either Pervincamine (4 ampoules of 3 ml = 60 mg vincamine p.d.) + glycerol, or glycerol + placebo administered by i.v. infusion. Clinically the results indicate a greater improvement of the neurological status (objectivated by a neurological scale) with vincamine treatment than with placebo. Statistically the analysis confirms the highly significant effect of vincamine on motility of lower and upper limbs (p less than 0.02) and the significant effect on cranial nerves (homonymous hemianopsia and conjugated deviation of eyes) (p less than 0.05) and on the sphincter control level (p less than 0.05).

Adult↗