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Results for “Constriction, Pathologic”

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PubMed1998

Update on bladder neck preservation during radical retropubic prostatectomy: impact on pathologic outcome, anastomotic strictures, and continence.

OBJECTIVES: To preserve the bladder neck during radical prostatectomy in an attempt to maintain continence and decrease the incidence of anastomotic stricture without compromising the removal of cancer. METHODS: A retrospective analysis of 365 consecutive radical prostatectomies performed from December 1991 through January 1997 was carried out. The records were reviewed in regard to the pathology of the prostate. In addition, the incidence of anastomotic strictures was determined. Urinary function and continence was evaluated in 195 patients by a quality of life questionnaire. RESULTS: (1) Pathology: positive margins were found in 119 patients (32%). The bladder neck margin was positive in 27 (7%), but the bladder neck was the only positive margin in only 2 patients (0.5%). The mean Gleason score for patients with negative margins was 6.4, for those with positive margins 7.2, and for all those with bladder neck margin positive 7.7. The mean Gleason score for the 2 patients with a solitary positive margin at the bladder neck was 9.0. Of patients with a Gleason score less than 7, 81% had a negative margin, 19% had a positive margin, and 1% had tumor at the bladder neck. Of patients with a Gleason score 7 or more, 58% had a negative margin, 42% had a positive margin, and 11% had a positive bladder neck. Patients with a prostate-specific antigen value of less than 10 ng/mL were more likely to have a favorable pathology. (2) Anastomotic stricture: an anastomotic stricture occurred in 5 patients (1%). Three had a previous transurethral resection of the prostate (TURP) and therefore bladder neck preservation was not possible. (3) Urinary function: 88% of all responders did not wear pads 6 months or more after surgery. Seventy percent of patients did not wear pads less than 6 months after surgery. Ninety percent of patients believed that urinary function did not limit social, physical, or occupational activities. CONCLUSIONS: We believe that bladder neck preservation during radical prostatectomy does not compromise surgical margins. The incidence of anastomotic strictures is less than 1% in patients who have not had a previous TURP. The quality of life questionnaire indicates a high level of continence that may be related in part to preservation of the bladder neck.

Anastomosis, Surgical↗

PubMed1992

Sialographic changes related to clinical and pathologic findings in chronic obstructive parotitis.

This paper presents the results from a study of 23 patients with chronic obstructive parotitis (COP) in whom the sialographic changes were related to the clinical and histopathologic features. The sialographic changes were divided into four types. The stimulated parotid flow rate (SPFR) was normal in sialography Type I patients, while SPFR was significantly reduced in Types II, III, and IV patients, as compared with healthy persons. The changes observed by light microscopy were irregular dilation and chronic inflammation of main and branching ducts with saliva deposits in the enlarged luminal system. Ultrastructural changes included degeneration of ductal epithelial cells, marked proliferation of periductal fibrous tissue, and moderately electron-dense deposits in the lumen of the dilated peripheral ducts. The extent of the histopathologic changes largely paralleled the severity of the sialographic changes. These findings indicate that COP is a relatively common inflammatory disease and that the sialographic classification reflects the severity of the disease.

Adult↗

PubMedDate not supplied

Benign stenosis of the papilla of Vater. Diagnosis of 119 cases with conventional and selective low radiomanometry.

Intra-operative radiomanometry with serial conventional films (panoramic cholangiography) and intra-abdominally placed large dental films (selective low cholangiography) produce a dynamic and static, millimetric study of the lower part of the common duct. It revealed in 2,095 patients with benign biliary pathology 119 cases of stenosis of the papilla of which 34 are detected during secondary operations of 85 patients. With the procedure of the authors a clear definition of the benign stenosis of the papilla is obtained radiomanometrically: 1. moderate hypertony; 2. disappearance of the normal rhythmical sphincter activity; 3. the biliary infundibulum, no longer conical, is wider than the intrapancreatic part of the common bile duct above it; 4. the biliary pancreatic reflux more rarely appears and, if it is discernible, pancreatic reflux is shorter than expected and the pancreatic duct obviously enlarged. These signs are quite characteristic of chronic stasis in both common bile duct and pancreatic duct, from infundibulum to intrahepatic ducts above the stenosic papilla (Acta chir. belg., 1977,76,523-532).

Aged↗

PubMed2000

Chronic expansion of the renal pelvis: a new method for reconstruction of upper ureteral defects.

OBJECTIVES: To evaluate whether the dilated renal pelvis can be used as an autologous source for the surgical reconstruction of upper ureteral defects or strictures. METHODS: In 7 female pigs, the renal pelvis was expanded by a percutaneously placed Council balloon catheter. Every other day for 4 weeks, the renal pelvis was progressively dilated with a bolus injection of saline and contrast medium, which allowed expansion of the renal pelvis to 70 to 75 mL. Four to six weeks after the initial intervention, 5 to 7 cm of the proximal ureter was resected in an open operation and replaced with a tubularized spiral flap made from the expanded renal pelvis. Three weeks later, the animals were killed, and the area of manipulation was resected for pathologic evaluation. RESULTS: All animals reached the desired expansion of the renal pelvis, and in all cases, the spiral flap was fashioned and anastomosed to the distal ureteral segment, bridging the initial defect (mean length 7 cm). Two animals died from sepsis, 4 and 6 days after the spiral flap reconstruction. A viable ureteral lumen with a patent anastomosis and a functioning pelvocaliceal unit was observed on intravenous urography in all animals. The main histologic findings were a chronic inflammatory process with concomitant mucinous metaplasia and reactive atypia of the tubules. CONCLUSIONS: The use of a balloon expander in the renal pelvis is a safe and effective technique for producing native tissue for the reconstruction of defects or strictures of the upper ureteral segment.

Anastomosis, Surgical↗

PubMed2006

[Autoimmune pancreatitis. An infrequent or underdiagnosed entity? Pathological, clinical and immunological characteristics].

In the last few years, reports of pancreatic inflammatory diseases caused by immunological mechanisms and with good response to steroid treatment have increased. Although this entity has been known by a number of names, at present the most widely accepted is that of autoimmune chronic pancreatitis (ACP). The present report describes the clinical, immunological, morphological, functional and pathological characteristics of two patients recently studied at our unit and discusses currently used diagnostic tests. The two patients had a complete response to steroid therapy. In our opinion, ACP is probably underdiagnosed in Spain. The availability of morphological, pathological and serological diagnostic tools developed in recent years will help to precisely determine the epidemiology of this process. Thus, quantification of serum levels of anti-carbonic anhydrase II and IgG4 has greatly contributed to the diagnosis of ACP. These tests should be performed in patients with a possible diagnosis of ACP, those suffering from diabetes mellitus type I with impairment of exocrine function, and those with alcoholic pancreatitis and a poor response to alcohol elimination. Once we are able to diagnose and determine the real prevalence of ACP in our setting, the most appropriate therapy and prognosis of this disease can be established.

Aged↗

PubMed1987

Non-thrombotic changes of fetal placental vessels in stillbirths. A qualitative and quantitative study.

A qualitative and quantitative microscopical examination of fetal stem vessels was performed in 50 placentas of stillborn infants and 50 normal controls. The vascular changes were morphologically similar in both groups, differences being only of quantitative nature. Subendothelial edema was more frequent in control placentas suggesting that it is not pathological. Subendothelial proliferation of smooth muscle cells prevailed in control and fresh stillbirths and could be due to arterial growth. Subendothelial proliferation of undifferentiated cells or fibrous and muscular tissues was more common in stillbirths. It occurred in most placentas of macerated stillbirths, but in fresh stillbirths the frequency was lower, though significantly higher than in controls. This thickening could represent the only reaction of placental vessels to fetal or maternal disease or cessation of fetal blood flow. Occlusion of the vascular lumen by fibrous and muscular tissues and vascular lumen divided by septa were present in the majority of the placentas of macerated stillbirths and rarely in fresh stillbirths, suggesting that in the macerated ones these changes were secondary to placental retention. The progressive collagenization of the media was the alteration most closely related to time of placental retention.

Constriction, Pathologic↗

PubMed2005

[Vertigo and pathology of the cerebello-pontine angle].

Many pathologies of the cerebello-pontine angle can induce vertigo or dizziness. Usually they are due to benign or malignant tumors. Pathophysiology of this vertigo involve lesion of the labyrinth with erosion, of the endolymphatic sac by invasion or compression, or directly by lesion of the vestibular nerve like in vestibular schwannomas. The vestibular nerve can also be injured by extrinsic compression like in meningiomas. Finally very big tumors can be compressive on the cerebellum or on the brainstem inducing also dizziness. Vertigo is often an important symptom of cerebello-pontine angle tumors. In association with others it will guide the diagnosis. Nevertheless, auditory evoked potentials, video-nystagmography, and otolithic evoked potentials are very important to determine exactly if the vestibular nerve is injured and if there are signs of central compression before surgery.

Cerebellar Neoplasms↗

PubMed1995

Diagnostic performance of digital subtraction angiography (DSA) and magnetic resonance angiography (MRA): preliminary results in vascular occlusive disease of the abdominal and lower-extremity arteries.

Fifty-nine patients with occlusive disease of the aorto-iliac and femoro-popliteal arteries were investigated prospectively by intravenous (IV) or intraarterial (IA) digital subtraction angiography (DSA) and magnetic resonance angiography (MRA). This was accomplished using a two-dimensional (2D) Inflow- (59 patients) and a 2D Phase Contrast- (RSE--rapid sequential excitation) sequence (29 patients). The spectrum of pathology included stenoses < 50%, stenoses 50-89%, stenoses 90-99%, occlusions, aneurysms and status following reconstructive surgery. MRA- and DSA-examinations were evaluated by four radiologists. The diagnoses were made by consent decisions of a radiologist and a vascular surgeon based on clinical and radiological findings. Diagnostic performance of IA-DSA was superior to all other imaging modalities. Vascular delineation of 2D Inflow-MRA was comparable to that of IV-DSA. The image quality of RSE-MRA was not adequate for diagnosis. In conclusion, 2D Inflow-MRA is a promising method for evaluating abdominal and peripheral arteriosclerotic disease. Interpretation of MR-angiograms, however, requires profound knowledge of MRA-techniques, X-ray angiography and hemodynamics.

Adult↗

PubMed2002

[Therapeutic and diagnostic tactics in complication of ulcer disease in elderly and aged].

In 78% of cases the ulcerative disease in elderly age proceeds with complications and presents a serious surgical problem. The specificity of elderly patients is the combination of several pathologies, on background of which the ulcerative disease proceeds. The level of an expressiveness of accompanying pathology influences on the prognosis of disease course and on the choice of medical tactics. Therefore for objectivization of state heaviness of the patient group mark systems of an estimation MODS and APACHE III are used. The interventions in gastroduodenal bleedings for the patients of elderly age should be differentiated and depended on a risk degree of bleeding relapse and adequate estimation of MODS heaviness. In 55.4% of the elderly patients the ulcerative perforation occur without antecedent history. Therefore indications to sewing of ulcers, including little-invasive interventions, should be extended in this group of the patients. The size of radical surgical interventions in absence of manifestation of the polyorganic insufficiency for the elderly patients should be the same, as for the younger patients.

Aged↗

PubMed1997

[Traumatic thrombosis of the distal ulnar artery (hypothenar hammer syndrome) in a golf player with an accessory muscle loop around Guyon's canal. Case report].

Arteriography of a 34-year-old golf player with M. Raynaud symptoms of his left hand revealed filling defects in the digital arteries II to IV fingers associated with corkscrew-like configuration of the ulnar artery in Guyon's space. The preoperative workup including 50 clinical laboratory tests searching for connective tissue diseases, vasculitis, and haematological disorders was without pathological findings; more central embolic sources were excluded angio- and cardiologically. MRI-scan demonstrated an anomalous muscle at the level of the hamate hook located underneath the M. palmaris brevis forming a sling around the ulnar artery. Surgery showed the ulnar artery distal to the anomalous muscle dilated with fibrotic thickening and intraluminal thrombosis. The involved A. ulnaris segment was resected and an interpositional vein graft performed. Histopathologic sections showed fibrosis of the arterial wall with intraluminal thrombosis and elastica fragmentation indicating traumatic genesis (hypothenar-hammer syndrome). We suspect intensive golf playing with the grip style and repetitive movements leading to pressure injury of the hypothenar area and the underlying ulnar artery. Contraction of the anomalous muscle belly may have additionally compressed the artery slowing down the arterial flow and accelerating the thrombosis.

Adult↗

PubMed2006

Sialoendoscopy: A new approach to salivary gland obstructive pathology.

BACKGROUND: During the last 13 years, there has been a growing interest in and use of minimally invasive treatment techniques. Salivary gland endoscopes provide an accurate means of diagnosing and providing minimally invasive surgical treatment for salivary gland diseases. METHODS: The authors review the relevant literature and provide the history of sialoendoscopy. They also report on the treatment methods they use, including instruments and techniques, and their experiences. RESULTS: The authors' overall success rate for parotid endoscopic sialolithotomy is 86 percent, and their overall success rate for submandibular endoscopic sialolithotomy is 89 percent. Their success rate for treating strictures is 81 percent. CLINICAL IMPLICATIONS: The endoscopic technique opens new horizons in the field of salivary gland diseases. Salivary gland stones and sialadenitis no longer are absolute indications for sialadenectomy. Owing to growing experience and surgical skills, new endoscopic techniques are in clinical use, and there is constant improvement in endoscopic treatment success rates. CONCLUSIONS: Sialoendoscopy is a promising new method for use in the diagnosis, treatment and postoperative management of sialadenitis, sialolithiasis and other obstructive salivary gland diseases.

Constriction, Pathologic↗

PubMed1994

Magnetic resonance imaging measurements of pituitary stalk compression and deviation in patients with nonprolactin-secreting intrasellar and parasellar tumors: lack of correlation with serum prolactin levels.

Prolactin (PRL) Levels are frequently elevated in patients with non-PRL-secreting adenomas or other intrasellar and parasellar diseases ("pseudoprolactinomas"). This phenomenon is believed to result from a loss of dopaminergic inhibition on pituitary lactotrophs and is known as the "stalk-section effect." Using magnetic resonance imaging scans and a high-magnification sella technique, we measured a number of parameters indicative of the disruption of normal sellar structures. The investigator was blind to the patient's diagnosis and PRL level while collecting the data. Parameters measured were the tumor size, the angular deviation of the pituitary stalk, and the degree of compression of the pituitary stalk. Measurements were obtained from 44 patients with pathologically confirmed tumors that had no immunohistochemical reactivity to PRL. PRL levels were often higher than expected. Four patients (9%) had a PRL level of more than 150 ng/ml, and three patients (7%) had a PRL level of 200 ng/ml or more. One patient with a plasmacytoma eroding the sella floor had a PRL level as high as 504 ng/ml. There was no significant correlation of PRL level and the degree of pituitary stalk compression, stalk deviation, or tumor size. PRL levels were found to be markedly elevated in some patients with a tumor causing little distortion of the pituitary stalk. Conversely, PRL levels were often normal despite evidence of massive distortion of the stalk. Therefore, magnetic resonance imaging evidence of pituitary stalk distortion cannot be used to determine the diagnosis of prolactinoma versus pseudoprolactinoma in most cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Adenoma↗

PubMedDate not supplied

[Valvuloplasty with balloon catheter in biologic prosthesis. Reality or illusion].

We performed catheter balloon valvuloplasty (CBV) on 8 stenotic operatively-excised bioprosthetic valves (2 Hancock and 6 Ionescu Shiley). Pathology of valves before CBV included degenerative changes: commissural fusion by mounds of calcific deposits (2 valves), fibrotic and focally calcified leaflets (7 valves) and stiff and thick valves (1 valve). Inflation of the balloon resulted in commissural splitting (2 valves), leaflet cracks and fractures (3 valves). Removal of the deflated balloon catheter was associated with debris dislodgement (3 valves). In one case the valve was unable to close with potential for acute regurgitation. Thus, CBV of bioprosthetic valves can split fused commissures by similar mechanisms as in native valves. CBV may fracture calcific deposits causing acute emboli. It can also disrupt the leaflets causing acute insufficiency. The findings suggest a limited role of CBV in the treatment of stenotic bioprosthetic valves in mitral and aortic position.

Bioprosthesis↗

PubMed2005

Revision surgery after carpal tunnel release--analysis of the pathology in 200 cases during a 2 year period.

Carpal tunnel release (CTR) is regarded as a common and successful operative procedure in hand surgery. However, an increasing number of patients with complications have been referred to our hospital. This retrospective investigation was undertaken to clarify the reasons for persisting or recurrent symptoms in 200 patients who underwent secondary exploration during a 26 month period at a single institution. In 108 cases, the flexor retinaculum was found to have been released incompletely. In 12 patients, a nerve laceration had occurred during the primary intervention. In 46 patients, symptoms were due to the nerve being tethered in scar tissue. The re-exploration revealed circumferential fibrosis around and within the median nerve in 17 patients and a tumour in the carpal tunnel in four patients. In 13 patients, no specific reason was found for recurrence of symptoms. We conclude that CTR seems to be a widely underestimated procedure and revision surgery could be largely avoided by reducing technical errors during the primary operation.

Adult↗

PubMed1998

[Hormonal treatment of proximal tubal pathology with the GnRH analogue leuprorelin].

In proximal tubal occlusions (PTO) the microsurgical anastomosis or in case of extensive tubal damage the in vitro-fertilisation (IVF) are the treatment modalities of choice. Aim of our study was to evaluate the effectivity of GnRH-analogues in the treatment of PTO. In 23 patients with repeatedly proven proximal tubal occlusion the GnRH-analogon Leuprorelin was applied for a 3 month period. 20 out of 23 patients completed the entire study including a further tubal patency test. 10 patients showed open tubes on both sides and in 2 cases one oviduct was patent. In 8 patients no effect of the hormonal treatment was found. Following the therapy 4 pregnancies occurred, 2 were located ectopically. Regarding tubal patency we could demonstrate a significant effect of hormonal treatment in proximal tubal occlusions (PTO). However, in respect to the pregnancy rate the results were not satisfactory. Therefore, the hormonal treatment of PTO by GnRH-analogues is limited to certain cases and doesn't represent a standard therapy.

Adult↗

PubMed1999

[Four cases of abducens palsy caused by a vascular lesion of the vertebrobasilar system].

Several pathological conditions are responsible for abducens palsy, but a lesion of the vertebral artery (VA) has rarely been recognized as one of the causes. It has been reported that a high percentage of cases of abducens palsy are involved with ruptured dissecting aneurysms of the VA. We investigate the vertebrobasilar anatomy in 4 patients, suffering with abducens palsy. One patient revealed a fusiform dilatation of the vertebral artery on the same side as the abducens palsy. Three patients were noted to have stenosis of the vertebral artery from the origin of the posterior inferior cerebellar artery (PICA) to the union. Finally, four patients were found to have abnormal vertebrobasilar anatomy, which was on the same side as the abducens palsy. It is conceivable that changes of vertebrobasilar circulation may cause abducens palsy through direct compression, or ischemic events.

Abducens Nerve↗

PubMed1982

[Stenosis of the intracranial internal carotid artery by a craniopharyngioma: report of a case].

Stenosis of the intracranial internal carotid artery by other tumors than meningiomas and pituitary adenomas is a rare occurrence. We present here a case with craniopharyngioma, which developed severe stenosis of the intracranial internal carotid artery 7 years following partial removal and irradiation. This severe stenosis of the intracranial internal carotid artery would result from combination of compression of the arterial walls against the surrounding bony structures and radiation effect on the arterial walls. A 29-year-old male was found to have a craniopharyngioma, which was treated by partial removal in 1971. He had suffered bilateral optic atrophy, right homonymous hemianopsia and panhypopituitarism. Angiography revealed elevation of the A-1 and opening of the carotid siphon on both sides. He had a course of 5,000 rads of Lineac irradiation in 1972. He showed no clinical improvement. He became totally blind in 1976. He was admitted again in 1979, because of left sided weakness and Korsakoff syndrome. Examination disclosed that there were bilateral optic atrophy, left hemiplegia with hyperreflexia and pathological reflexes, hypesthesia in the left side of the face and Korsakoff syndrome, chiefly consisting of confabulation. Angiography showed that the right internal carotid artery was markedly elevated and stenosed. The left internal carotid artery was elevated and the left A-1 was stenotic. The territory of the left distal anterior cerebral artery was filled from the anterior falx artery of the ophthalmic artery. The right A-1, M-1 and M-2 were filled through the left A-1. The territory of the right anterior cerebral artery was filled through the right posterior pericallosal artery and that of the right middle cerebral artery was partly filled through the posterior temporal and occipito-parietal arteries of the posterior cerebral artery. A right superficial temporal-middle cerebral artery bypass surgery was performed with some clinical improvement.

Adult↗

PubMed1984

Pathological aspects of diffuse nodular hyperplasia of the liver.

The microscopical features in specimens of liver tissue from 14 patients considered to be suffering from Diffuse Nodular Hyperplasia (DNH) were compared with the changes found in livers from five other groups of patients. The diagnoses in these groups were macronodular cirrhosis, hepatic venous occlusion, congestive cardiac failure, compensatory hyperplasia after destruction of part of the liver and chronic biliary disease respectively. In all these groups the formation of thick hepatocyte plates, thought to represent cell proliferation, was a constant and striking feature. Such plate thickening in the periportal regions was associated with congestive cardiac failure and with hepatic venous occlusion. The diffuse involvement of almost all plates formed part of the changes in DNH, cirrhosis, compensatory hyperplasia and chronic biliary disease. Normal vascular relations were retained in the patients with compensatory hyperplasia and chronic biliary disease and lost in cirrhosis and, in some parts, in DNH. The nodules were small in DNH and larger in cirrhosis, where they were surrounded by fibrous tissue. DNH appeared to be recognizable in needle biopsy specimens.

Atrophy↗