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Human ovulation captured on film
Human ovulation captured on film Mohamed 27,248 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.

Ear Rinne Test USMLE
Ear Rinne Test USMLE USMLE 15,161 Views • 2 years ago

Ear Rinne's Test from the USMLE collection

Heartworm Extraction Surgery
Heartworm Extraction Surgery samer kareem 11,594 Views • 2 years ago

remove a staggering number of heartworms. If you don't have your pet on heartworm prevention, go to your vet, get your pet tested and put on heartworm prevention right away!

Abdomen Examination USMLE
Abdomen Examination USMLE USMLE 24,660 Views • 2 years ago

Examination of the abdomen from the USMLE collection

Secret Signs You're Depressed
Secret Signs You're Depressed samer kareem 1,651 Views • 2 years ago

Everyone feels sad or low sometimes, but these feelings usually pass with a little time. Depression—also called “clinical depression” or a “depressive disorder”—is a mood disorder that causes distressing symptoms that affect how you feel, think, and handle daily activities, such as sleeping, eating, or working. To be diagnosed with depression, symptoms must be present most of the day, nearly every day for at least 2 weeks.

TRAM operation for Breast Reconstruction
TRAM operation for Breast Reconstruction DrHouse 18,208 Views • 2 years ago

TRAM only in cases where a Diep or Gracilis is not applicable

Bartholin Cyst
Bartholin Cyst samer kareem 4,114 Views • 2 years ago

Bartholin gland Marsupialization in Primary Bartholin Cyst

Gerstmann Syndrome
Gerstmann Syndrome samer kareem 2,346 Views • 2 years ago

Testing for the four features of Gerstmann Syndrome in this patient with two separate left sided strokes (left frontoparietal ischaemic stroke followed by left posterior parietal haemorrhagic stroke). He exhibits (i) acalculia, (ii) agraphia, (iii) left-right disorientation, and (iv) finger agnosia. Complicating the issue is his obvious nonfluent aphasia (expressive dysphasia) with paraphasic errors (replacing words with associated words (e.g. says 'fork' instead of 'spoon')) and some comprehension issues.

Laparoscopic Radical Nephrectomy
Laparoscopic Radical Nephrectomy DrHouse 21,092 Views • 2 years ago

McMaster University technique of Laparoscopic Radical Nephrectomy

Twins Conversation in the Womb
Twins Conversation in the Womb samer kareem 14,208 Views • 2 years ago

Twins Conversation

Vaginal Prep for D&C
Vaginal Prep for D&C samer kareem 4,039 Views • 2 years ago

Dilation and curettage (D&C) is a procedure to remove tissue from inside your uterus. Doctors perform dilation and curettage to diagnose and treat certain uterine conditions — such as heavy bleeding — or to clear the uterine lining after a miscarriage or abortion.

Endoscopic Sphenopalatine Artery Ligation
Endoscopic Sphenopalatine Artery Ligation Doctor 24,905 Views • 2 years ago

A 55-year-old man presented with recurrent epistaxis. After endoscopic sphenopalatine artery cauterization, the bleeding stopped. The patient was doing well at last follow up.

Liddle's Syndrome
Liddle's Syndrome samer kareem 1,867 Views • 2 years ago

Liddle syndrome is an inherited form of high blood pressure (hypertension). This condition is characterized by severe hypertension that begins unusually early in life, often in childhood, although some affected individuals are not diagnosed until adulthood. Some people with Liddle syndrome have no additional signs or symptoms, especially in childhood. Over time, however, untreated hypertension can lead to heart disease or stroke, which may be fatal.

Intussuseption and Appendectomy
Intussuseption and Appendectomy DrHouse 9,410 Views • 2 years ago

Intussuseption and Appendectomy

Robotic daVinci Surgical System Overview
Robotic daVinci Surgical System Overview Scott 7,199 Views • 2 years ago

The da Vinci® Surgical System provides surgeons with an alternative to both traditional open surgery and conventional laparoscopy, putting a surgeon's hands at the controls of a state-of-the-art robotic platform. Our surgeons can perform even the most complex and delicate procedures through very small incisions with unmatched precision.

First Aid - Electric Shock
First Aid - Electric Shock samer kareem 2,270 Views • 2 years ago

Very small currents can be imperceptible. Larger current passing through the body may make it impossible for a shock victim to let go of an energized object. Still larger currents can cause fibrillation of the heart and damage to tissues. Death caused by an electric shock is called electrocution.

Treatment of bowel injury by IUD
Treatment of bowel injury by IUD Scott 22,513 Views • 2 years ago

Treatment of bowel injury by IUD

Biliary Atresia
Biliary Atresia samer kareem 1,438 Views • 2 years ago

Biliary atresia is a rare disease of the liver and bile ducts that occurs in infants. Symptoms of the disease appear or develop about two to eight weeks after birth. Cells within the liver produce liquid called bile. Bile helps to digest fat.

Who are Doctors?
Who are Doctors? samer kareem 11,370 Views • 2 years ago

#STOP VIOLENCE AGAINST DOCTORS#SAVE THE DOCTOR

Brain Death
Brain Death samer kareem 7,087 Views • 2 years ago

One of the criteria to determine brain death is the irreversible absence of cerebral and brainstem reflexes including pupillary, oculocephalic, oculovestibular (caloric), corneal, gag, sucking, swallowing, and extensor posturing. Some of the other criteria for determination of brain death include: 1. Absence of respiratory drive (apnea) off the ventilator for a duration that is sufficient to produce hypercarbic drive (usually 10 to 20 minutes to achieve pC02 of 50 to 60 mmHg) ( 2. Body temperature below 34 C (93.2 F) 3. EEG isoelectric for 30 minutes at maximal gain 4. Absence of cerebral circulation by Doppler or magnetic resonance angiography 5. At least 24 hours of observation in adults with anoxic-ischemic brain damage with a negative drug screen

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