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The differential diagnosis of chest pain
The differential diagnosis of chest pain samer kareem 4,490 Views • 3 years ago

Chest pain is a frequent complaint of patients seeking urgent medical assistance, and accounts for an estimated 2-4 per cent of all A&E visits in the UK (Becker, 2000). Generally, acute chest pain should be considered cardiovascular in origin until proven otherwise and it is common in clinical practice to err on the conservative or ‘safe’ side when evaluating people with chest pain. Individuals with suspected ischaemic chest pain must be evaluated rapidly for several reasons: - Myocardial ischaemia, if prolonged and severe, can cause myocardial infarction (necrosis); - Treatment strategies that achieve myocardial salvage (thrombolytic therapy or primary coronary angioplasty) are available for patients with acute coronary syndromes and these treatments reduce morbidity and mortality;

腹腔镜十二指肠球部溃疡穿孔修补术
腹腔镜十二指肠球部溃疡穿孔修补术 wang bzh 2,319 Views • 3 years ago

腹腔镜十二指肠球部溃疡穿孔修补术

Appendectomy
Appendectomy Mohamed 11,911 Views • 3 years ago

Appendectomy (midline caecum)

Molar Uprighting for Implant
Molar Uprighting for Implant samer kareem 11,205 Views • 3 years ago

Aim: To detail two different clinical protocols and case studies using mini-implant anchorage developed to respond to certain clinical conditions. Methods: Two clinical protocols are described to upright mesially tilted mandibular molars. In the first protocol, a single mini-implant is inserted distally to the molar to be uprighted, and an elastic traction chain is applied to the tooth. In the second clinical approach, two mini-implants are inserted mesially. A screw-suspended TMA sectional archwire is applied (Derton-Perini technique). Two cases, descriptive of the two different treatment protocols, are described. In the first case, the mandibular right second premolar was missing and the adjacent first molar needed to be uprighted. A single screw was inserted distally to the first molar, and an elastic chain was applied. In the second case, the mandibular left second molar was missing and the third molar needed to be uprighted. Two mini-implants were inserted mesially and a fully screw-supported sectional archwire was used to upright and bodily mesialize the third molar. Results: Both uprighting approaches uprighted the molar axis without loss of anchorage. Conclusion: The two approaches to mandibular molar uprighting, developed as rational responses to different clinical cases, were both found to be effective. Research paper: Mandibular molar uprighting using mini-implants: Different approaches for different clinical cases-Two case reports.. Available from: https://www.researchgate.net/publication/224920305_Mandibular_molar_uprighting_using_mini-implants_Different_approaches_for_different_clinical_cases-Two_case_reports [accessed

Laparoscopic Appendectomy Surgery for Appendicitis (2008)
Laparoscopic Appendectomy Surgery for Appendicitis (2008) Surgeon 226 Views • 3 years ago

UPDATE 2/6/15: A new version of this animation is now available! https://www.youtube.com/watch?v=E1ljClS0DhM

This 3D medical animation depicts the surgical removal of the appendix (appendectomy) using laparoscopic instruments. The surgery animation begins by showing an inflamed appendix (appendicitis), followed by the placement of the laparoscope. Afterward, one can see the surgical device staple, cut and remove the inflamed appendix. Following the removal of the appendix the abdomen is flushed with a sterile saline solution to ensure all traces of infection have been removed.
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Local Anaesthetic Injection
Local Anaesthetic Injection Doctor 26,438 Views • 3 years ago

Local Anaesthetic Injection

Breech presentation C-Section
Breech presentation C-Section Marco Arones 157,943 Views • 3 years ago

Misgav Ladach - Joel Cohen approach for breech presentation

TUMOR FRONTO ORBITARIO NEUROCIRUGÍA
TUMOR FRONTO ORBITARIO NEUROCIRUGÍA samer kareem 2,918 Views • 3 years ago

TUMOR FRONTO ORBITARIO NEUROCIRUGÍA

What Really Happens When You Swallow Gum?
What Really Happens When You Swallow Gum? samer kareem 6,227 Views • 3 years ago

What Really Happens When You Swallow Gum?

Laparoscopic Appendectomy Steps
Laparoscopic Appendectomy Steps Doctor 14,315 Views • 3 years ago

Laparoscopic Appendectomy for Acute Appendicitis Post-illeal Appendix

Megacolon
Megacolon samer kareem 3,053 Views • 3 years ago

Megacolon, as well as megarectum, is a descriptive term. It denotes dilatation of the colon that is not caused by mechanical obstruction.[1, 2] Although the definition of megacolon has varied in the literature, most researchers use the measurement of greater than 12 cm for the cecum as the standard. Because the diameter of the large intestine varies, the following definitions would also be considered: greater than 6.5 cm in the rectosigmoid region and greater than 8 cm for the ascending colon. Megacolon can be divided into the following 3 categories: Acute megacolon ( pseudo-obstruction) Chronic megacolon, which includes congenital, acquired, and idiopathic causes Toxic megacolon

Snake bite causes girl’s leg to rot away
Snake bite causes girl’s leg to rot away hooda 39,615 Views • 3 years ago

Watch that video of a Snake bite causes girl’s leg to rot away

Ovulation Calculator
Ovulation Calculator samer kareem 30,425 Views • 3 years ago

Our calculator can help you discover the most fertile days of your menstrual cycle or your “Estimated Fertility Window” based on information you provide.

Is oncology the right choice for you?
Is oncology the right choice for you? samer kareem 1,528 Views • 3 years ago

What combines research opportunities, intellectual challenge, and international collaboration in the study of a disease which affects many organs of the body and all sectors of society? And demands that specialists from many different backgrounds work together to crack sometimes intractable problems? It is, of course, oncology. As a career choice, it's demanding; it takes passion coupled with a willingness to put in the hours and to learn how to discuss death honestly and sensitively. But for the right person, it can be immensely rewarding.

Surgical abortion - end
Surgical abortion - end Paul Jensen 35,881 Views • 3 years ago

The products of a surgical abortion.

Right endoscopic myringotmy drainage of glue ear
Right endoscopic myringotmy drainage of glue ear samer kareem 1,310 Views • 3 years ago

Bleeding After Sex
Bleeding After Sex samer kareem 1,473 Views • 3 years ago

It may be reassuring to know spotting or bleeding after sex is common and can come from the vagina, cervix, or urinary tract. It occurs most commonly in women 20 to 40 years old. Cervical Cancer: A very rare cause of spotting. ... Vaginal Dryness: Often caused by inadequate foreplay or vaginal lubrication.

Mechanism of Cisplatin Anti-Cancer Drug
Mechanism of Cisplatin Anti-Cancer Drug Scott Stevens 16,979 Views • 3 years ago

Cisplatin is in a class of drugs known as platinum-containing compounds used to treat various types of cancers including metastatic testicular and ovarian tumors. The molecule was first discovered in 1845, but did not receive FDA approval until 1978. Today it is known as the "penicillin of cancer drugs," because it is so effective for many different cancers. There are three key players involved in Cisplatin's mechanism: (1) Cisplatin, (2) DNA (3) and an HMG Protein. Most Cisplatin enters the body through active transport, but some molecules are passively defused through the cell membrane. Once in the nucleus, Cisplatin can form an adduct with two consecutive guanine bases within a strand of DNA. The molecule loses its chlorine atoms in exchange for the nitrogen atoms of the target guanines. Cisplatin can bond more tightly with nitrogen because nitrogen balances the platinum charge more effectively than chlorine. It is this adduct-induced DNA bend that allows binding of proteins which contain the high mobility group, HMG domain. Once the protein is bound to the DNA, it inserts a wedge-like phenyl group of phenylalanine 37 into the widened minor groove created by the bend. The tightly bound HMG protein causes destacking of the nucleotide bases, resulting in the DNA helix becoming kinked. In this way, Cisplatin can be thought of as a monkey wrench in the DNA repair system. With the HMG protein bound to the DNA, the modified strand is not repaired properly and so the cell dies. The success of Cisplatin depends on its ratio of efficacy between cancerous and healthy cells.

Shave Your Pubic Hair
Shave Your Pubic Hair samer kareem 3,967 Views • 3 years ago

Shave Your Pubic Hair

Pregnancy Amniotic Fluid
Pregnancy Amniotic Fluid samer kareem 1,382 Views • 3 years ago

today we talk about Amniotic fluid during your pregnancy! Looking forward to your comments.

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