Whether there is occlusion or not after end-to-end suturing depends largely on the skill of the surgeon.
Moreover, if vasectomy has been done by mere cutting without considerable resection, and especially if the vasa have been shut by ligation alone, no one can be certain that the occlusion is either certain or permanent.
When the ends of a cut vas are released from cicatricial tissue, these ends may be sutured together; but as the lumen of the vas is extremely small, there is sometimes obliteration by occlusion at the juncture.
Occlusion of the gall-ducts is an essentially chronic malady in the greatest number of cases.
Occlusion of the canal from this cause may last for days, and be accompanied with tympanitis, stercoraceous vomiting, and all the signs of internal strangulation, ending in death.
In congenital occlusion and malformation the history of the case, the age of the patient, and the fact that the deformity in such cases is almost always confined to the anus and rectum, usually render the diagnosis sufficiently easy.
The differentiation of hypertrophic cirrhosis from occlusion of a slowly-forming character is by no means easy.
When theocclusion is partial, although it be permanent, sufficient bile may descend into the duodenum to color the stools to the normal tint, and yet all the other signs of obstruction be present.
The most usual appearance of the stools in occlusion is grayish, mush-like, and coarsely granular.
Consequently, the occlusion of the vein was the primary condition, and this must be explained in some other way than by its inflammation.
The occlusion of the blood-vessels in this diseased condition is a subject which has given rise to much discussion.
Large veins were found plugged up without the existence of corresponding indications of inflammation, and perfectly clear indications were often present that occlusion had preceded the inflammation.
A useful bandage (Moorfield’s bandage) for occlusion of both eyes is made from stockinette, which fits closely over the eyes and nose and is fastened with tapes.
This is necessary to prevent total occlusion of the cervical canal when the denuded flaps are sutured (Fig.
If the furuncles occur during the course of a middle-ear suppuration, and occlusion of the external meatus prevents free drainage of the purulent secretion.
In such cases forcible syringing may cause considerable pain, and in addition immediate removal of the foreign body may be impossible owing to the temporary occlusion of the meatus.
Showing its occlusion by the base of the iris, A, being adherent to the posterior surface of the cornea, so preventing filtration of the aqueous into the canal of Schlemm, B.
Operation for congenital occlusion of the posterior choanæ.
Similar pressure between the larynx and hyoid bone caused apposition of the ary-epiglottic folds and occlusion of the air-passages.
According to him the causes of death are three: occlusion of the air-passages, interruption of passage of blood to brain, and compression of pneumogastric nerves.
Cankers due to insects are found on Apples, the cortex of which is punctured by the woolly Aphis (Schizoneura) while the twigs are young, and the wound is kept open by the insects nestling in crevices in the occlusion tissues.
These processes of healing by occlusion enable us to understand how letters of the alphabet, cut into the wood of trees, come to be buried deep in the timber as successive annual rings cover them in more and more.
The essential facts regarding wounds and healing by occlusion are given in Marshall Ward, Timber and some of its Diseases, 1889, chapters viii.
Exactly the same processes of corking and lip-like callus formation at the edges of the wound occur, but of course the occlusion of the bared wood-surface by the meeting of the lips occupies a longer time.
Gangrene, which may follow occlusion of main vessels, or virulent infective processes.
The pulsation in the vessels beyond the seat of rupture is arrested--for a time at least--owing to the occlusion of the vessel, and the limb becomes cold and powerless.
If the pulsation returns within a week of the injury, the presumption is that the occlusion was due to pressure from without--for example, by hæmorrhage into the sheath or the pressure of a fragment of bone.
Although complete recovery is to be expected under early and energetic treatment, if neglected, iritis may result in occlusion of the pupil and permanent impairment or loss of sight.
When gangrene follows occlusionof the external iliac or of the femoral artery above the origin of its deep branch, the death of the limb extends as high as the middle or upper third of the thigh.
The occlusion of the vein as well as the artery is not found to increase the risk of gangrene.
As examples of the solution of gases in solids there may be cited (in addition to the phenomena of occlusion already mentioned), the hydrated silicates and the zeolites.
Comparatively little work has been done in this connection, the investigations being limited chiefly to the phenomena of occlusion or adsorption of gases by charcoal.
While, therefore, the occlusion of hydrogen by palladium still presents some unexplained phenomena, the behaviour found by Hoitsema would appear to disprove conclusively the formation of a definite chemical compound.
It is claimed to cure chronic auto-infection and the spasmodic occlusion of the lower bowel!
I regard theocclusion of the upper portion of the rectum, and especially of the region involved in the flexure of the bowel, as the most usual seat and source of constipation.
This condition of affairs increases the occlusion (closing) of the bowels, but makes very easy indeed the entrance and propagation of micro-organisms in the sub-mucous coat of the intestine.
Deviations, spines, and ridges of the septum may produce partial or complete occlusion of the anterior nares.
An annular stricture causing occlusion may be excised, and the ends of the trachea sutured.
Sometimes there is merely anocclusion of the mouth of the uterus, the perforation of which removes all difficulty.
Flexion or version of the womb may produce partial occlusion of the canal of the neck of the uterus, thus preventing the free flow of the menstrual fluid through it.
The temperature at which this occlusion will take place can be determined by the screw in the lateral arm.
In Babes' modification the gas supply is cut off, not by the occlusion by the rising mercury of the aperture of the T-piece, but by a floating beaded wire-valve.
In some cases the swelling is so great as to necessitate tracheotomy, or intubation of the larynx; and if the edema involve the bronchi, occlusion may be fatal.
Portable aspirator for endoscopy with additional tube connected with the plus pressure side for use in case of occlusion of the drainage canal.
Swelling of the bronchial mucosa from irritation plus infection completes the occlusion of the bronchus.
Intermittent dysphagia suggests the tilting or shifting of a foreign body in a valve-like fashion; but may be due to occlusion of the by-passages by food arrested by the foreign body.
The volume of gas admitted into the charcoal is determined by the burette D and the pipette P, and the corresponding occlusion pressure at any concentration and any temperature below 90 deg.
If the occlusion be not normal, the upper jaw and alveolar process will develop laterally as well as anteriorly.
Another of the dangers is gradual occlusion of the arteries bringing about necrosis with softening of the brain substance.
The occlusion of the Mississippi was the grievance they deplored.
The sides of the tubes cohered, permanently united by adhesive inflammation, and complete and permanent occlusion resulted.
Aside from a few amblyopias caused by prolonged occlusion of the eyelids, ptosis, or blepharospasm, the most frequent are due to opacities, ametropia, and strabismus.
When it is of a chemical character, the process is one of cementation, due to the occlusion of gases in the molecules of the metals.
Occlusion of the left posterior cerebral artery causes extensive softening of the occipital lobe and produces pure word blindness.
As this gradual process of occlusion of the outlet goes on, the duct itself becomes more and more distended by the retained bile, till it at length attains an enormous size.
When theocclusion of the common bile-duct is caused by an organic tumour, no treatment of ours can be expected to remove the obstacle, and sooner or later the patient is carried to an untimely grave.
I wondered whether his retirement had been hastened by a real coronary occlusion or whether he'd used his extra-sensory power to fake the symptoms and control the doctor's instruments.
There was a medical report that Wood had undergone a mild coronary occlusion some months ago which had hastened his retirement.
Of these, two types may be distinguished, according as expansion or occlusion of the labial orifice predominates.
Therefore we find that slowing up of the blood currents, whether due to uric acid occlusion or any other cause, is more pronounced in the surface of the body and in the extremities than in the interior parts and organs.
This occlusion of the surface circulation can be easily observed and even measured by a simple test.
The entire group of symptoms caused by the excess of uric acid in the system and the resulting occlusion of the capillary blood vessels by colloid substances is called ~collemia~ [a glutinous or viscid condition of the blood].
