SEARCH · PubMed Health

Results for “FORAMEN”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,459 records · Page 81Linked to original sources

PubMed1983

[Hypoxemia after heart surgery by a right-left shunt via a permeable unrecognized foramen ovale].

Hypoxemia is a relatively common complication in the immediate postoperative period after cardiac surgery under cardio-pulmonary bypass, usually due to pulmonary disease. When this does not improve with oxygen therapy and in the absence of pulmonary disease, it may be due to a right-to-left shunt. We report a case with a right-to-left intracardiac shunt due to persistence of a patent foramen ovale, which became functional again under the new hemodynamic conditions after surgery under cardiopulmonary bypass and assisted ventilation. The diagnosis and physiopathological mechanism were studied by cardiac catheterisation and angiography. Contrast echocardiography should be able to detect these acquired shunts relatively easily. The diagnosis requires appropriate therapy: discontinuation of ineffective assisted ventilation as this may aggravate the situation by increasing pulmonary resistance, and anticoagulant therapy to prevent potentially disastrous paradoxical thromboembolism.

Aortic Valve Insufficiency↗

PubMed1984

[The jugular foramen, the inferior bulb of the jugular vein and their surgical approach].

Anatomical features of the sigmoid sinus and internal jugular vein and their connections are described. The jugular foramen is really only the opening of a bony canal between occipital and temporal bones, and is equivalent to a connective opening between the occipital vertebra and petrosal bone. The junction between the sigmoid sinus and internal jugular vein has the form and probably also the function of a siphon, but one in which the two arms are at right-angles. The jugular vein sinus has numerous vessels emptying into it, including some; condylar veins and inferior petrosal sinus, that are of high importance: valves are present at their orifices and the jugular sinus contains cords as in the cardiac cavities. The jugular vein sinus certainly plays a physiologic role in venous flow: a rigid-wall canal, the sigmoid sinus is followed by one with flexible, easily collapsible walls: the jugular vein. The latter is submitted to very high negative pressures that have to be compensated for by the sigmoido-jugular siphon in order to maintain cerebral vascular filling. Surgical approach to the jugular vein sinus is complicated by two factors: the facial nerve and hemorrhage. The facial nerve in its bony canal is situated immediately adjacent to the jugular sinus and must be displaced to reach the vein. The sinus is almost always approached for jugular glomus tumors, which are very hemorrhagic lesions. To prevent blood loss, the sigmoid sinus and then the external carotid are linked to the jugular vein.(ABSTRACT TRUNCATED AT 250 WORDS)

Accessory Nerve↗

PubMed1983

Endocrine expressions of hydrocephalus. A case of primary amenorrhoea revealing a stenosis of the foramen of Magendie.

A Caucasian female, aged 28 years, presenting with obesity and investigated for primary amenorrhoea, was found to have hydrocephalus due to a stenosis of the foramen of Magendie. Endocrine investigations showed an isolated gonadotrophin deficiency. Complete recovery was obtained by a ventricular-cardiac shunt, which led to the return of menses, a normal pregnancy, and then a return to normal weight.

Adult↗

PubMed1983

[Passage from the thigh to the retroperitoneum through the obturator foramen of an enormous recurrent lipoma].

The authors refer to an enormous lipoma relapsing from the thigh and the retro-peritoneum space which they have observed. Underlying the rarity of the case, they reveal their reasons whereby one must consider the origin of this lipoma the medial region of the thigh, and the foramen obturatorium the passage-way of the same lipoma from the thigh to the retroperitoneum. Furthermore considering the frequent impossibility of complete removal of these extremely developed lipomas rendering a reserved quod vitam prognosis.

Humans↗

PubMed1984

Closure of the interventricular foramen and morphogenesis of the membranous septum and ventricular septal defects in the human heart.

The development of the atrioventricular and interventricular membranous septum was studied The interventricular foramen is closed by the growth of the endocardial crest of the interventricular muscular septum towards the cranio-ventral atrioventricular cushion and towards the part B of the outflow tract ridge B-3; the bulbus is septated by the apposition and fusion of parts A and B of the outflow tract ridges A-1 and B-3. The membranous septum develops from the crest of the interventricular muscular septum between the interventricular muscular septum and the right border of the atrioventricular cushions, where it forms the atrioventricular mesenchymal septum. This last develops towards the right surface of the interventricular muscular septum and forms the septal cusp primordium of he tricuspid valve; this is undermined, for which reason the septal cusp is cut off from the interventricular muscular septum at the 5th month of fetal life. From the 6th month of intrauterine life, the undermining extends to the atrioventricular mesenchymal septum, for which reason the right septal cusp becomes inserted in the right face of the atrioventricular mesenchymal septum which becomes divided into atrioventricular and interventricular. The Authors advance some hypotheses as to the origin of certain defects of the interventricular septum.

Animals↗

PubMed1983

Incarcerated foramen of Bochdalek hernia during pregnancy. A case report.

Symptomatic diaphragmatic hernia during pregnancy is a rare but potentially dangerous occurrence. A delay in diagnosis and treatment may be fatal to both the woman and the fetus. A case occurred of incarceration of the colon through a foramen of Bochdalek hernia; the diagnosis was made postpartum, with a successful maternal outcome. The failure of conservative measures to adequately diagnose and treat commonly voiced gastrointestinal complaints may lead to a delay in recognizing serious pathology.

Adult↗

PubMed1983

[Surgical treatment of hernia of the esophageal foramen of the diaphragm in children].

The surgical treatment of hernia of the esophageal foramen of the diaphragm was performed in 57 children. The transabdominal access was used in operations in 6 of these 57 patients (4 of them had recurrent hernias). In 51 children operations were fulfilled by the transthoracic way. No recurrencies were noted. Good remote results were obtained in 30 patients observed.

Adolescent↗

PubMed1980

Cysticercosis cerebri occluding the foramen of Monro.

Cysticercosis cerebri is a rare neurological diagnosis, which is usually made at the time of operation or at autopsy. Few cases have been reported in North America, and these were usually found in immigrants and in domestic travelers who lived in infested countries. Cysticercosis cerebri is classically divided into four general types: 1) intraparenchymal, 2) basilar cisternal, 3) ventricular, and 4) diffuse cerebral. We are presenting a unique case of solitary ventricular cysticercosis occluding the foramen of Monro, and producing an asymmetrical obstructive hydrocephalus.

Brain Diseases↗

PubMed1980

[Neurinoma of the foramen laceratum (author's transl)].

The clinical diagnosis of acoustic neuroma was suggested by the cochleovestibular symptomatology in a young woman who, was found indeed to have a neurinoma of the foramen laceratum. Such masquerading symptoms and signs are frequently reported (in one quarter of the cases) in these tumors, and probably partly explain their rarity, only 59 cases having been described. Tomography of the base of the skull appears as the main investigation leading to a correct diagnosis.

Adolescent↗

PubMed1982

Clinically-directed CT in occult disease of the skull base involving foramen ovale.

Occult disease of the skull base may present as an isolated neurogenic symptom in the absence of physical signs or radiologic findings. It therefore often remains undiagnosed until advanced. Computed tomography (CT) provides the potential for diagnostic imaging far beyond conventional radiology. Not only do current generation scanners provide exquisite bone detail, they also provide the capability of soft tissue imaging. In the past year, we have matched the diagnostic problem of occult disease of the middle fossa skull base and its foramina with the potential diagnostic imaging solution of CT. Five patients were referred with possible occult middle fossa skull base disease--all had persistent unilateral facial paraesthesia in the distribution of one of the lower two trigeminal nerve divisions (V2 V3) as their only complaint; all had previously been extensively investigated (including axial CT); all remained undiagnosed. Utilizing clinically-directed CT (based on acoustic neuroma diagnostic index of suspicion and imaging experience), 2 of the 5 patients were found to have small mass lesions involving foramen ovale. This presentation will demonstrate our experience based on image-manipulated CT, actively monitored by both radiologist and otolaryngologist.

Adult↗

PubMed1980

[Contrast echocardiography in patients with insignificant interatrial communications (patent foramen ovale) (author's transl)].

Peripheral M-mode contrast echocardiograms at rest and during the Valsalva manoeuvre were performed in 9 patients with haemodynamically insignificant interatrial communications. Contrast echoes appeared in the left heart in all 4 patients with elevated right ventricular pressure, but also in 3 out of the 5 patients with normal right-side pressures. Thus, a positive contrast echocardiogram, while definitely proving the presence of an intracardiac communication, does not necessarily mean that the defect is haemodynamically significant. The ability to detect a patent foramen ovale non-invasively by contrast echocardiography may be useful in patients with suspected paradoxical embolism.

Blood Pressure↗

PubMed1995

[Interventional closure of an open foramen ovale in a patient with recurrent cerebral ischemia].

In a 24-year-old female patient suffering from recurrent ischemia, an aneurysm of the atrial septum and a patent foramen ovale with significant right-to-left shunt during the Valsalva maneuver were detected by means of contrast Doppler echocardiography. After other causes had been excluded, paradoxical embolism was suspected to be the cause of the cerebral symptoms. The defect was closed by a 17-mm Rashkind occluder without complications. Six months later no residual shunt was detected and no further neurological event had occurred. This case demonstrates the feasibility of non-operative closure of those defects. This new technique could represent an alternative to long-term anticoagulation or operative procedures in selected patients.

Adult↗

PubMed1995

[Ablation of the bundle of His through a patent foramen ovale, by approach from the left side].

The authors report the case of a 60-year-old male patient in whom resection of the bundle of His via a right-sided approach to treat permanent very rapid atrial fibrillation was attempted, but failed. The bundle of His tissue was resected very easily on the left side due to the presence of a patent foramen ovale, which also avoided the risks of the left catheterism in this patient.

Atrial Fibrillation↗

PubMedDate not supplied

[Herniation of the cecum and ascending colon through Winslow's foramen and the lesser omentum. A case report].

Internal hernia into epiploic foramen is a rare clinical entity, representing 1% of all herniae and 8% of internal herniae. We report a peculiar case of internal herniation presented during a laparotomy for acute colecystitis where the caecum and ascending colon entered the lesser sac through the forame of Winslow and reentered the main abdominal cavity through a congenital defect of the lesser omentum.

Aged↗

PubMed1994

[Patent foramen ovale: an anatomical study. Apropos of 500 consecutive autopsies].

A patent foramen ovale (PFO) was looked for in 500 consecutive adult autopsy studies (265 men, 235 women) in which death was due to acquired cardiovascular pathology (mainly coronary artery disease); this condition was demonstrated in 73 cases (42 men, 31 women); 14.6%. A PFO forms a short inter-atrial communication (average length 5 mm) directed anteriorly and slightly superiorly, opening in the right atrium anteriorly at the junction of the fosse ovale-limbus and in the left atrium under membranous fold concave anteriorly, which represents the anterior expansion of the valve of the fosse ovale. The average surface area of the PFO is 0.5 cm2 (range 0.2 to 1.5 cm2). The underlying cardiac pathologies, age, sex, had no relation to the frequency of PFO. Of the different analysable anatomical features, weight of the heart, atrial size, tricuspid regurgitation, texture of the fosse ovale (thickness over 1mm, or thin, transparent membrane), dimensions of the Eustachian valve, had no influence on the frequency of PFO. No thromboses were observed incarcerated in, in contact with or adherent to the right atrial surface of the PFO. Three of the 73 patients with PFO had, shortly before death, experienced an embolic cerebrovascular accident: in all 3 cases there was a thrombus in the left heart chambers.

Adult↗

PubMed1994

[Patent foramen ovale and paradoxical embolism: a controversial hypothesis].

Twenty-four patients with a patent foramen ovale and unexplained ischemic cerebral events are reported. The conventional factors in favour of paradoxical embolism have been evaluated. Five patients (20.8%) mentioned a Valsalva manoeuver just before the onset of their neurological disorders. Only 2 deep venous thrombosis of the legs, one of which resulting from the ischemic event, could be detected. These results do not confirm the hypothesis of paradoxical embolism and are in disagreement with other recent studies. This discrepancy may be due to the choice of the patients. More stringent echocardiographic criteria should be considered in the future.

Adult↗

PubMed1978

Intramedullary syndrome due to an extradural neurinoma near the foramen magnum.

A case of right sided extradural neurinoma at the level of the foramen magnum is reported which presented as an intramedullary spinal cord syndrome. Ischemia of the anterior spinal artery or of the vertebral artery was considered to be an important pathogenic factor in the production of the neurological syndrome. The outer part of the spinothalamic tract, where sensory fibers carrying pain and thermal sensibility from the sacral segments are situated, escaped ischemia as that part is supplied by penetrating branches of the pial arterial plexus. The discrepancy between the level of neurological deficit (C5) and site of the tumor (C1-2) was due to distant ischemia. The lack of a history of root pain and the rapid recovery following removal of the tumor also favor a vascular origin for the neurological deficit.

Humans↗

PubMed1994

[Detection of patent foramen ovale by transcranial Doppler ultrasonography].

This study compares the value of transcranial Doppler ultrasound (TCD) and transesophageal echocardiography (TEE) for detecting a patent foramen ovale (PFO). A total of 61 stroke patients under 65 years of age, were studied. A PFO was detected by TEE in 27 of 61 patients and these results were used as the gold standard. TCD confirmed the presence of PFO in 23 of the 27 patients and detected a PFO in a further 5 patients with normal TEE results. TCD had a sensitivity of 85% (23 of 27) and accuracy of 85% (52 of 61). The prevalence of PFO detected by both methods was 38%.

Cerebrovascular Disorders↗