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Human ovulation captured on film
Human ovulation captured on film Mohamed 27,080 Views • 2 years ago

To record the sequence, Stephan Gordts and Ivo Brosens of the Leuven Institute for Fertility & Embryology in Belgium performed transvaginal laparoscopy, which involves making a small cut in the vaginal wall and observing the ovary with an endoscope.

"This allows us direct access to and observation of the tubo-ovarian structures without manipulation using forceps," says Gordts.

For the photos of ovulation, which only accidentally captured the critical moment, Jacques Donnez at the Catholic University of Louvain (UCL) in Brussels, Belgium, used gas to distend the organs for photography. However, Gordts and Brosens planned the procedure to coincide with ovulation and used saline solution to "float" the structures.
Perfect timing

Observation was timed for the day of the peak of the patient's luteal hormone cycle. Ovulation was predicted to occur on the evening of the day of the LH peak, and the endoscope introduced at 6 pm.

A small amount of saline was used to float the opening of the fallopian tube, its fimbriae (the "fingers" that sweep the egg into the tube) and the ovary itself. This gives a more natural appearance than gas, says Gordts.

In the video, the fimbriae can be seen sweeping in time with the patient's heartbeat. A mucus plug can be seen protruding from the ovary – this contains the egg.

"The ovum is not captured 'naked'," says Gordts. "There is no eruption like a volcano."

Gordts says that in clinical practice it is not easy to organise the observation of ovulation. "We were probably lucky to be successful at our first attempt," he says.

plastic surgery cosmetic injections facial
plastic surgery cosmetic injections facial samer kareem 4,613 Views • 2 years ago

plastic surgery cosmetic injections facial 3d medical animation company studio 3d visualization heal

Reduce an anterior shoulder dislocation
Reduce an anterior shoulder dislocation samer kareem 2,067 Views • 2 years ago

Reduction techniques can vary in terms of required force, time, equipment, and staff. [7] No single reduction method is successful in every instance; therefore, the clinician should be familiar with several reduction techniques. Techniques commonly used to reduce anterior shoulder dislocations include the following [35, 36, 37, 38, 39] : Stimson maneuver Scapular manipulation External rotation Milch technique Spaso technique Traction-countertraction

Sebaceous Cyst, Hematoma and Growth Removal
Sebaceous Cyst, Hematoma and Growth Removal samer kareem 4,588 Views • 2 years ago

Sebaceous Cyst, Hematoma and Growth Removal

Composite anterolateral thigh flap for achilles tendon repair
Composite anterolateral thigh flap for achilles tendon repair samer kareem 34,292 Views • 2 years ago

it's the video of the OR during a dynamic reconstruction of the achilles tendon by a composite anterolateral perforator flap

Abdomen Examination USMLE
Abdomen Examination USMLE USMLE 24,607 Views • 2 years ago

Examination of the abdomen from the USMLE collection

Carpal Tunnel Syndrome USMLE
Carpal Tunnel Syndrome USMLE USMLE 12,302 Views • 2 years ago

A video of Carpal Tunnel Syndrome from the USMLE collection

Second degree burns
Second degree burns samer kareem 14,814 Views • 2 years ago

soaking the wound in cool water for five minutes or longer. taking acetaminophen or ibuprofen for pain relief. applying lidocaine (an anesthetic) with aloe vera gel or cream to soothe the skin. using an antibiotic ointment and loose gauze to protect the affected area.

Tummy Tuck Muscle Repair with 3D CAT scan
Tummy Tuck Muscle Repair with 3D CAT scan samer kareem 7,263 Views • 2 years ago

plastic surgeon demonstrates the results of a muscle separation(rectus diastasis) repair using 3 dimesional CAT scan and photographic images

Fetal position in womb
Fetal position in womb samer kareem 10,036 Views • 2 years ago

fetal position in womb at 34 weeks fetal position in womb week by week fetal position in womb at 19 weeksUnborn babies toss and turn and hold many different positions within the womb during the gestation period; pregnant women everywhere will attest to the fact that their children always start up the gymnastics at bedtime.

HIV Testing for Infants
HIV Testing for Infants samer kareem 4,270 Views • 2 years ago

Diagnosis of HIV infection in infants is aided by HIV culture or DNA/RNA polymerase chain reaction (PCR); positive results are confirmed by repeating the test. In suspected cases, HIV testing should occur in the newborn period (ie, before the infant is 48 h old), at age 1-2 months, and again at age 3-6 months.

Colposcopy
Colposcopy samer kareem 3,190 Views • 2 years ago

Colposcopy (kol-POS-kuh-pee) is a procedure to closely examine your cervix, vagina and vulva for signs of disease. During colposcopy, your doctor uses a special instrument called a colposcope. Your doctor may recommend colposcopy if your Pap test has shown abnormal results.

subfrontal approach to the anterior skull base
subfrontal approach to the anterior skull base M_Nabil 16,934 Views • 2 years ago

lesions at the anterior skull base invading the paranasal area and the paracavernous area can be reached without brain retraction by the shown subfrontal approach. it enables to control the paranasal sinus, optic nerve, periorbital tissue, carotid artery and pituary gland. reconstruction is not easy... but cosmetically appealing. CSF leaks are rare with the use of fascia lata and tissucol ( fibrin glue). osseous reconstruction is done by microsrews and calciumpyrophosphate ( norian, synthes).

GIT endoscopy with biopsy
GIT endoscopy with biopsy Scott 17,713 Views • 2 years ago

An older patient with stomach pain, and the typical heart burning. We did some biopsies for evaluation of dyplasia.

MICROSURGICAL CLIPPING OF CEREBRAL ANEURYSM
MICROSURGICAL CLIPPING OF CEREBRAL ANEURYSM Scott 22,173 Views • 2 years ago

ANEURYSMS OF THE CEREBRAL VESSELS CAUSE SUBARACHNOID HEMORRHAGE. MICRONEUROSURGICAL CLIPPING ELIMINATES DEFINITIVE THE RISK OF RERUPTURE, ENABLES TO TREAT VASOSPASMS AND ELIMINATES THE NEED FOR RE-ANGIOGRAPHIES. INTRAOPERATIVE PUNCTURE CHECKS IMMEDIATLY THE ELIMINATION OF THE ANEURYSM.

Pick's Dementia:
Pick's Dementia: samer kareem 1,411 Views • 2 years ago

Frontotemporal dementia (frontotemporal lobar degeneration) is an umbrella term for a diverse group of uncommon disorders that primarily affect the frontal and temporal lobes of the brain — the areas generally associated with personality, behavior and language. In frontotemporal dementia, portions of these lobes shrink (atrophy). Signs and symptoms vary, depending upon the portion of the brain affected. Some people with frontotemporal dementia undergo dramatic changes in their personality and become socially inappropriate, impulsive or emotionally indifferent, while others lose the ability to use language.

Laryngeal Mask Airway in Medical Emergencies
Laryngeal Mask Airway in Medical Emergencies samer kareem 1,631 Views • 2 years ago

Laryngeal Mask Airway in Medical Emergencies

Cesarean Section Childbirth
Cesarean Section Childbirth Mohamed 48,145 Views • 2 years ago

A video showing the cesarean section birth

Superficial Parotidectomy
Superficial Parotidectomy DrPhil 27,365 Views • 2 years ago

parotidectomy has always been considered to be a daunting aesthetic surgical exercise reuiring extreme care to safeguard the facial nerve. most surgeons master the skill with experience and effort and develop thier own tips and tricks for safe conduct of the procedure. details of the procedure along... with practical tips are illustrated in the video for the benefit of head neck surgeons

Laparoscopic Radical Nephrectomy
Laparoscopic Radical Nephrectomy DrHouse 21,057 Views • 2 years ago

McMaster University technique of Laparoscopic Radical Nephrectomy

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