Prof. Ali A. Shafik Publications

Shafik AA - PubMed

Andrology:

  1. Shafik A, El-Sibai O, Shafik A, El-Sibai O (2000) The anocavernosal erectile dysfunction syndrome. II. Anal fissure and erectile dysfunction. Int J Impot Res12:279-283
  2. Shafik A, Shafik AA, Asaad S, Wahdan M, Morris M (2004) The corporo-glans ligament: description and functional significance of a ligament connecting the corpora cavernosa to the glans penis. Int J Imp Res 16: 220-223 
  3. Shafik A, Shafik I, El-Sibai O, Shafik AA (2004)Overactive corpus cavernosum : Another cause of erectile dysfunction. Andrologia 36: 383-378  
  4. Shafik A, Shafik AA, El-Sibai O, Shafik AI (2004) Electrocavernosogram in erectile dysfunction: A diagnostic tool. Arch Androl 50: 317-325
  5. Shafik A, El-Sibai O, Shafik I, Shafik AA(2005) Transcutaneous electrocavernosography : a tool for recording the electromyographic activity of the corpora cavernosa. J Urol 174:629-631     
  6. Shafik A, Shafik AA, Shafik I, El-Sibai O (2005) Urethral sphincters response to cavernosus muscles stimulation with identification of cavernoso-urethral reflex. Arch Androl 51: 335-343  
  7. Shafik A, Shafik AA, Shafik I, El-Sibai O(2005) Conjoint corpora cavernosa and its role in erection. Arch Androl 51: 425-430
  8. Shafik A, Shafik I, El-Sibai O, Shafik AA (2005)Electric waves recorded from the testicle: are they capsular or from the testicular tissue? Int J Androl 28: 350-354
  9. Shafik A, Shafik AA, El-Sibai O, Shafik I(2005)Tunica albuginea overlapping: A novel technique for the treatment of erectile dysfunction. Andrologia 37:180-184
  10. Shafik A, Shafik AA, El-Sibai O(2005) Electric activity of the testicular tunica albuginea during ejaculation: an canine study. Exp Biol Med 230(8):569-572
  11. Shafik A, Shafik AA, Shafik I, El-Sibai O (2006)The hypoactive corpora cavernosa with degenerative erectile dysfunction: a new syndrome. BMC Urology 6: 13 - 20
  12. Shafik A, El-Sibai O, Shafik A (2006) Vaginal and uterine pressure response to semen deposition into the vagina and uterus: human study. Clin. Exp. Obst. & Gyn. 33: 107-109  
  13. Shafik A, Shafik AI, El-Sibai O, Shafik AA (2006) Interstitial cells of Cajal in erectile dysfunction. Arch Androl 52: 255-262  
  14. Shafik A, Shafik I, El-Sibai O, Shafik AA(2006) Effect of external anal sphincter contraction on the ischiocavernosus muscleand its suggested role in the sexual act. J Androl 27:40-44  
  15. Shafik A, Shafik I, Shafik AA, El-Sibai O(2006) The cavernoso–anal reflex: response of the anal sphincters to cavernosus muscles' stimulation. Aian J Androl 8: 331-336   
  16. Shafik A, Shafik AA, El-Sibai O, Shafik I(2006) Role of tunica albuginea in erection: is it a dynamic or static role? Arch Androl 52: 81-86     .
  17. Shafik A, Shafik AA, El-Sibai O, Shafik I(2006) Contractile activity of the prostate at ejaculation : an electrophysiologic study. Urology 67:793-796      
  18. Shafik A, Shafik I, El-Sibai O, Shafik AA (2006) Study of the cremasteric muscle during erection: identification of the ‘peno-cremasteric reflex’ Surg Radiol Anat 28: 569-572        
  19. Shafik A, Shafik I, El-Sibai O, Shafik AA (2006) Straining-cremasteric reflex: identification of a new reflex and its role during increased intra-abdominal pressure. Surg Radiol Anat 28: 387-390.
  20. Shafik A, Shafik AA, El-Sibai O, Shafik I (2006) Sperm DNA Fragmention. Arch Androl 52:197-208.
  21. Shafik A. El-Sibai O, Shafik I, Shafik AA (2006)Corpora cavernosa as an alternative route for transfusion. Frontiers in Biosci 11: 2535-2537 
  22. Shafik A, El-Sibai O, Shafik I, Shafik AA (2006)Cavernosus muscles contraction during erection: Is it voluntary or reflex, given the striated nature of the muscles?J Androl  27: 695-706
  23. Shafik A, Shafik AA, El-Sibai O, Shafik I(2006) Molecular Andrology as related to Sperm DND fragmentation and sperm chromatin Biotechechnology. Arch Androl 52: 299-310
  24. Shafik A, Shafik I, El-Sibai O, Shafik AA (2007) Interstitial Cells of Cajal in Tunica Albuginea of the Testicles. Andrology Upadte 1: 9-15
  25. Shafik A, Mostafa R, Shafik AA, Shafik AI, El-Sibai O (2007)Study of interstitial cells in the penis: Human study. J Sex Med 4: 66-71
  26. Shafik A, Shafik AA, El-Sibai O, Shafik I (2007) On the pathogenesis of penile venous leakage: role of the tunica albuginea. BMC Urology 7:14
  27. Shafik A, Shafik AI, El-Sibai O, Shafik AA (2007)Electrophysiologic activity of the tunica albuginea and corpora cavernosa: possible role of tunica albuginea in the erectile mechanism. J Sex Med  4: 675-679
  28. Shafik A, Shafik IA, El-Sibai O, Shafik AA (2007) The effect of external urethral sphincter contraction on the cavernosus muscles and its role in the sexual act. Int Urol Nephrol 39: 541-546         
  29. Shafik A, Shafik AA, Shafik I, El-Sibai O (2007) Physiologic considerations of the morphologic changes of the testicles during erection and ejaculation: A canine study. Urologia Inter 79: 262-266
  30. Shafik A, Shafik IA, El-Sibai O, Shafik AA (2007) Electromyographic study of the anterolateral abdominal wall muscles during ejaculation. J Sex Med 1022-1027   
  31. Shafik A, Shafik IA, El-Sibai O, Shafik AA (2007) Physioanatomical relationship of the external anal sphincter to the bulbocavernosus muscle in the female. Int Urogynecol J 18: 851-856   
  32. Shafik A, Shafik AA, El-Sibai O, Shafik I (2007) Electromyographic study of ejaculatory mechanism. Int J Androloy
  33. Shafik A, Shafik AA, El-Sibai O, Shafik I (2007)Obesity in men: Endocrinology, Spermatogenesis, Infertility and Heredity. Arch Androl Androl Update 1: 18-26         
  34. Shafik A, Shafik AA, El-Sibai O, Shafik I (2007)The response of the corporal tissue and cavernosus muscles to urethral stimulation: an effect of penile buffeting of the vaginal introitus. J Androl 28: 853-857      
  35. Shafik A, Shafik AA, El-Sibai O, Shafik I (2008) Inguinal canal dilatation: a novel technique for the repair of failed testicular descend despite hormonal treatment. Am Surg 74: 69-72
  36. Shafik A, Shafik AA, El-Sibai O, Shafik I (2008) A study of the effect of straining on the cavernosus muscles: identification of 'straining –cavernosus reflex' and its clinical significance. Andrologia 40: 23-28
  37. Shafik A, Shafik AA, El-Sibai O, Shafik I (2008) Percutaneous perineal electrostimulation induces erection: clinical significance in patients with spinal cord injured and erectile dysfunction. J Spinal Cord Med 31: 40-43         
  38. Shafik A, Shafik AA, El-Sibai O, Shafik I (2008) Study of the response of the penile corporal tissue and cavernosus muscles to micturition. BMC Urol 8: 4-9       

 

Urology:

  1. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2003) Role of positive urethrovesical feedback in vesical evacuation. The concept of a second micturition reflex: The urethrovesical reflex. World J Urol 21: 167-170
  2. Shafik A, El-Sibai O, Ahmed I, Shafik AA (2004) Effect of vesical contraction on the non-sphincteric part of the urethra: Recognition of vesicourethral inhibitory reflex. Int J Urol 11:213-217
  3. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2004) Do vesical and voided urine have Identical composition? Scand J Urol Nephro 38: 243-246
  4. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2004) The electrovesicogram in the overactive bladder: role in determining pathogenesis and diagnostic significance. Urological Research 32: 290-293
  5. Shafik A, El Sibai O, Shafik AA, Ahmed I, Mostafa RM (2004) Vesical pacing: Pacing parameters required for normalization of vesical electic activity in patients with overactive bladder. Frontiers in Bioscience 9:995-999
  6. Shafik A,  Ahmed I, El Sibai O, Shafik AA, Mostafa RM (2004) Vesical  pacing in  patients  with  overactive bladder: Technique and results. Int Urol & Nephrol 36: 29-34
  7. Shafik A, El Sibai O, Mostafa MY, Shafik AA, Shafik AI (2004) Identification of the interstitial cells of Cajal in the human urinary bladder:  The concept of vesical pacemaker. Urology 64: 809-813
  8. Shafik A, Shafik AI, El Sibai O, Shafik AA (2005) Effect of micturition on the external anal sphincter. Identification of the urethra-anal reflex. J Spinal Cord Med 28: 421-425
  9. Shafik A, Shafik AI, El Sibai O, Shafik AA (2005) Changes in the urine composition during its passage through the ureter.  A concept of urothelial function. Urol Res 33: 426-428
  10. Shafik A, Shafik AI, El Sibai O, Shafik AA (2006) Does the composition of voided urine reflect that of the renal pelvis? Urol Res 34: 261-264
  11. Shafik A, Shafik AI, El Sibai O, Shafik AA (2006) Role of the perineal muscles in micturition. Identification of the vesico–perineal reflex. J Pelvic Med Surg 12: 19-24
  12. Shafik A, El Sibai O, Shafik AI, Shafik AA (2007) Electromyographic activity of the anterolateral abdominal wall muscles during the vesical filling and evacuation J Reas Med Sci 12: 74-79
  13. Shafik A, Shafik AI, El Sibai O, Shafik AA (2007) Effect of urethral stimulation on vesical contractile activity.  Am J Med Sci. 334: 240-243
  14. Shafik A, Shafik AA, Shafik AI, El Sibai O (2007) Effect of rectal distension on vesical motor activity in humans: the identification of the recto-vesicourethral reflex. The J Spin Cord Med 30: 36-39
  15. Shafik A, Shafik AI, El Sibai O, Shafik AA (2008) The anterolateral abdominal wall muscles during vesical filling and evacuation: Electromyographic study Urology 71: 621-624
  16. Shafik A,  Shafik AI, El Sibai O, Shafik AA (2008) The electromyographic activity of the external and internal urethral sphincters and urinary bladder on vaginal distension and its role in preventing vaginal soiling with urine during sexual intercourse. Arch Gynecol Obstet 277: 213-217      

Gastroentrology:

  1. Shafik AA (2002) Hernia Formation after Laparoscopic Surgery: Report of 4 Cases. Kasr E Ani J Surg 3:113-116
  2. Shafik A, Shafik Ali A, El-Sibai O, Mostafa RM(2004) The effect of straining on the diaphragmatic crura with identification of the straining-crural reflex. The “reflex theory” in gastroesophageal competence: A new concept. BMC Gastroenterology 4: 24-28
  3. Shafik A,  El-Sibai O, Shafik AA, Mostafa RM, Shafik I (2004)Effect of Straining on the Lower Esophageal Sphincter: Identification of the "Straining-Esophageal Reflex" and Its Role in Gastroesophageal Competence Mechanism. J Inevt Surg 17:191-196         
  4. Shafik A, El-Sibai O, Shafik I, Shafik AA (2004) Electroesophagogram in Gastroesophageal Reflux Disease  with A new Theory on the Pathogenesis of its Electric Changes. BMC Surgery     4: 1-8    
  5. Shafik A, El-Sibai O, Shafik AA, Mostafa R (2005)Effect of Topical Esophageal Acidification on Salivary Secretion: Identification of the mechanism of action. J Gastro Hepato 20: 1935-1939             
  6. Shafik A, El-Sibai O, Shafik AA, Shafik I (2005) Interstitial cells of Cajal in reflux esophagitis: role in the pathogenesis of the disease. Med Sci Monit 11: 452-456      
  7. Shafik A, Shafik AA , El-Sibai O, Shafik I (2005) Physioanatomic study of the diaphragmatic crura:  the identification of autonomous "gastroesophageal sphincter". J Invest Surg 18:135-142
  8. Shafik A, Shafik I, El-Sibai O, Shafik AA (2005) On the Pathogenesis of Gastroesophageal Reflux: The Concept of “gastroesophageal dyssynergia”. J Thorac Cardiovasc  Surg 130:401-407              
  9. Shafik A, Shafik I, El-Sibai O, Shafik AA (2006) Demonstration of a physiologic sphincter at duodeno-jejunal junction. Front Biosci 11:2790-2794     
  10. Shafik A, El-Sibai O, Shafik AA (2007) Study of the duodenal contractile activity during antral contractions. World J Gastro 13: 2600-2603      
  11. Shafik A, Shafik AA, Wahdan M, El-Sibai O (2007) Duodeno-jejunal junction : a histoanatomical study with the concept of the existence of an 'anatomical' sphincter.
    12. Surg Radiol Anat 29: 661-665
  12. Shafik A, Shafik AA, El-Sibai O, Shafik AI (2007) The effect of gastric overfilling on the pharyngo-esophageal and lower esophageal sphincter: A possible factor in restricting food intake. Med Sci Mont 13: 220-224.             
  13. Shafik A, El-Sibai O, Shafik AA, Shafik I (2007)Contraction of Gluteal maximus muscle on increase of the intra-abdominal pressure:  role in the fecal continence mechanism Surgical Innov 14: 270-274             
  14. Shafik A, El-Sibai O, Shafik AA , Shafik I (2007) Mechanism of gastric emptying through the pyloric sphincter: A human study. Med Sci Monit 32: 71 - 72

Proctology:

  1. Shafik A, El-Sibai O, Shafik AA (2000) Is myoelectric activity transmittable from one muscle to another?An experimental study. Int J Surg Invest 2: 165-170             
  2. Shafik A, Shafik AA (2000) Electric activity spreads in the colonic longitudinal but not the circular musculature. Role in colonic motility. Front Bio Sci 5, b5-8 (PubMed#11056084)
  3. Shafik A,  El-Sibai O, Shafik AA (2000) Rectal pacing in patients with constipation due to rectal inertia: technique and results. Int J Colorectal Dis15: 100-104
  4. Shafik A, El-Sibai O, Shafik AA (2001) Experimental use of the obturator internus muscle as a functioning pelvic floor muscle in dogs Eur J Surg 167:782-788
  5. Shafik A, Shafik AA (2001) The 'Uninhibited Rectum': A cause of fecal incontinence. J Spinal Cord Med 24: 159-63              
  6. Shafik A, El-Sibai O, Shafik AA (2001) Study of the mechanism underlying the difference in motility between the large and small intestine: The " Single" and " Multiple" pacemaker theory.  Front Bio Sci 6: b 1-5 (PubMed# 11401784)
  7. Shafik A, El-Sibai O, Mostafa RM, Shafik AA (2001) Electric activity of the rectosigmoid canal and its relation to rectal and sigmoid electric activity: An evidence of a sphincteric function of the rectosigmoid canal. Front Biosci 6: b 6-9 (Pub Med# 11532613).
  8. Shafik A, Wahdan MM, Shafik AA (2001) The ileocaecal valve in man: Anatomical, Radiological and Endoscopic studies with special references to its antireflux mechanism. The Egyptian Anatomical Society 24(1) :279-304               
  9. Ali YA, Shafik AA (2001) Posterior Rectocele: A Study and Evaluation. Egypt J Surg 20: 437-442
  10. El Sibai O, Shafik AA. (2002)  Cauterization - Plication Operation in the Treatment of Complete Rectal Prolapse, Tech Coloproctol 6:51-54
  11. Ali YA, Shafik AA (2002) A Study of Rectal Motility: The Normal Pattern of Rectal Evacuation. Kasr E Ani J Surg 3:41-48
  12. Shafik A, El-Sibai O, Shafik AA (2002) A novel method for preventing postoperative adhesions in the rat model. J Gynecologic Surg 18: 65-68
  13. Shafik A, Shafik AA, I Ahmed (2002) Role of longitudinal smooth muscle coat in the ileal motile activity: evidence of ileo-ileal inhibitory reflex. J Gastroenterol Hepatol 17:1267-1271             
  14. Shafik A, El-Sibai O, Shafik AA (2002) Physiological assessment of the function of the ileocecal junction with evidence of ileocecal junction reflexes. Med Sci Monit 8:CR629-635 PMID: 12218944         
  15. Shafik A,  Mostafa RM, ShafikAA, El-Sibai O (2002) Study of the effect of straining on the bulbocavernosus muscle with evidence of a straining-bulbocavernosus reflex and its clinical significance. Int Urogynecol J     13: 294-298
  16. Shafik A, Mostafa RM, Shafik AA (2002) Electrophysiological study of the rectosigmoid canal: Evidence of a rectosigmoid sphincter. J Anat 200: 517-521            
  17. Shafik A, El-Sibai O, Shafik AA(2002) Electrophysiologic identification of the location  of  the  colonic  pacemakers.  A human study. Front in Boisci 7: b1-5 PubMed# 11815299 
  18. Shafik A, El-Sibai O, Shafik AA, Shafik IA (2002) The Motor Efficacy of the Artifical Colonic Pacemaker in Colonic Inertia Patients. Front Biosci 7: b6-13 PubMed#12045022    
  19. Shafik A,  Shafik AA, Shafik IA (2003) Effect of Colonic Distension on Ileal Motor Activity with Evidence of Coloileal Reflex. J Gastrointest Surg 7(5):701-705.
  20. Shafik A,  El-Sibai O, Shafik AA (2003) Study of the effect of jejuno-ileal distension on the motor activity of the stomach with evidence of 'entero-gastric Inhibitory reflex'. Hepatogastroenterology 50: 1966-1969
  21. Shafik A, Mostafa RM, Shafik AA, Ahmed I (2003) Study of the functional activity of the cecocolonic junction with identification of a “Physiologic sphincter”, “cecocolonic inhibitory reflex'' and ''colocecal excitatory reflex” Surg Radiol Anat 25: 16-20
  22. Shafik A, Shafik AA, El-Sibai O, Ali YA (2003) Videodefecography: a study of the rectal motile pattern Surg Radiol Anat 25: 139-144         
  23. Shafik A,  Shafik AA, El-Sibai O, Mostafa RM (2003) Electric Activity of the Colon in Subjects With Constipation Due to Total Colonic Inertia: An Electrophysiologic Study. Arch Surg 138:1007-1011             
  24. Shafik A, Shafik AA, El-Sibai O, Ahmed I (2003) Electrophysiologic Identification of the Location of the Colonic Pacemakers in Humans. Further Study. J Invest Surg 16: 289-297      
  25. Shafik A, El-Sibai O, Shafik AA, Shafik IA (2003) Colosigmoid junction: A study of its functional activity with identification of a physiologic sphincter and involvement in reflex actions. J Invest Surg 16: 29-34
  26. Shafik A,  El-Sibai O, Shafik AA, Shafik IA (2003) Colonic pacing in patients with constipation due to colonic inertia. Med Sci Monit 9(5):191-196       
  27. Shafik A, Shafik AA, Ahmed I (2003) Role of positive anorectal feedback in rectal evacuation: the concept of a second defecation reflex: the anorectal. J Spinal Cord Med 26:380-383
  28. Shafik A, El-Sibai O, Shafik AA, Shafik IA(2003) Role of the Sympathetic Innervation in the Defecation Mechanism: A Novel Concept of its Function. J Spinal Cord Medic 26(2):150-152        
  29. Shafik A, Shafik AA, El-Sibai O, Ahmed I (2003) Study of the role of the second defecation reflex: Anorectal excitatory reflex in the pathogenesis of constipation. J Am Coll Surg 196:729-734      
  30. Shafik A, El-Sibai O,Shafik AA, Ahmed I (2003) On the pathogenesis of rectocele: the concept of the rectovaginal pressure gradient. Int Urogyne J 14:310-315       
  31. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2003) Colonic pacing in the treatment of patients with irritable bowel syndrome: Technique and results. Front in Boisci 8: b1-5          
  32. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2003) Effect of Straining on Perineal Muscles and Their Role in Perineal Support: Identification of the Straining-Perineal Reflex. J Surg Res 112:162-167          
  33. Shafik A,  Shafik AA, El-Sibai O, Ahmed I (2004) Colonic pacing:  A therapeutic option  for the treatment of constipation due to total colonic inertia. Arch Surg 139: 775-779        
  34. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2004) Electric activity of the colon in the irritable bowel syndrome: The “tachyarrhythmic” electric pattern. J Gastroent Hepato 19:205-210         
  35. Shafik A, Shafik AA, El-Sibai O, Ahmed I (2004) Treatment of irritable bowel syndrome with colonic pacing: Evaluation of pacing parameters required for correction of the “tachyarrhythmia” of the IBS. Hepato-gastroenterology 51: 1708-1712    
  36. Shafik A, Ahmed I, Shafik AA, El-Sibai O (2004) Electric activity of the gut in ulcerative colitis and Crohn's disease: Electromyography as a tool for differentiating between the two conditions in the early stage. Med Sci Monit 10: 572-576.             
  37. Shafik A, El-Sibai O, Shafik AA, Ahmed I (2004) ‘Objective’  assessment of rectal sensation: A novel approach. Front in Biosci 9: 159-163               
  38. Shafik A, Ahmed I, Shafik AA, El-Sibai O (2004) Diverticular disease: Electrophysiologic study and a new concept of pathogenesis. World J Surg 28: 411-415.            
  39. Shafik A, El Sibai O, Ahmed I, Shafik AA (2004) Identification of interstitial cells of Cajal in the human rectum. Front Biosci 9:2848-2851
  40. Shafik A, Mostafa RM, El-Sibai O, Shafik IA (2004) Electromotor activity of the cecum and ascending colon: The concept of "individual pacemakers". Eur Surg Res 36: 308-312.      
  41. Shafik A, El-Sibai O, Ahmed I, Shafik AA (2005) Perineal Rectocele: Perinocele A cause of constipation. pathogeneses, clinical presentation and treatment. J Pelvic Med & Surg 11: 199-207 
  42. Shafik A, Ahmed I, Shafik AA, El-Ghamrawy TA. El-Sibai O (2005) Surgical anatomy of the perineal muscles and their role in perineal disorders. Anat Sci Int 80: 167-171
  43. Shafik A, Ahmed I, El-Sibai O, Shafik AA, Mostafa R (2005) Study of the rectal electric activity of the uninhibited rectal detrusor (overactive rectum): a new concept of pathogenesis. J Spinal Cord Med 28: 64-68            
  44. Shafik A, El-Sibai O, Shafik I, Shafik AA (2005) Identification of the location of the colonic pacemaker : a histologic study. Frontiers in Biosc 10: 1661-1665         
  45. Shafik A, Shafik AA, El-Sibai O, Shafik I (2005) Effect of warming on the rectal motile activity: identification of rectal warming reflex. J Surg Res 130: 34-37.         
  46. Shafik A, Shafik AA ,El Sibai O, Ahmed I, Mostafa RM (2006) Role of the Rectosigmoidal junction in fecal continence: Concept of the primary continent mechanism. Arch of Surg 141:23-26.           
  47. Shafik A, Mostafa RM, Shafik I, El Sibai O, Shafik AA (2006) The Functional activity of the rectum: A conduit organ, a storage organ, or both?  W J Gastro 12: 4549-4552   
  48. Shafik A,  Shafik AA, El-Sibai O, Shafik I (2006) Interstitial Cell of Cajal in Patients with Constipation due to Total Colonic Inertia. J Invest Surg 19: 147-153
  49. Shafik A, Shafik AA, Ahmed I, El-Sibai O (2006) Study of the role of the transverse perineal muscleus during rectal filling. Int J Colorectal Dis 21: 698-704. 
  50. Shafik A, Shafik I, El-Sibai O, Shafik AA (2006) Detection of predefecatory rectosigmoid wave activity for prevention of fecal soiling in infants. Front Biosience 11: 3096-3099        
  51. Shafik A,  Shafik I, El-Sibai O, Shafik AA (2006) Effect of straining on the muscles of the anterior abdominal wall. identification of the 'straining-abdominal wall reflex' Front Biosci 11: 2174-2178   
  52. Shafik A, Shafik I, El-Sibai O, Shafik AA (2006) The ‘‘Opening Time’’ and ‘‘Pelvic Floor Electromyographic Lag Time’’: Two Novel Tools in the Assessment of the Anorectal Evacuation Time. J Invest Surg        19: 307-311.        
  53. Shafik A, El-Sibai O, Shafik I, Shafik AA (2007) Effect Of Cooling On The Rectal Tone. Eur Surg Res 39: 291-295  
  54. Shafik A, El-Sibai O, Shafik I, Shafik AA (2007) Rectal cooling test in the differentiation between constipation due to rectal inertia and anismus. Tech Coloproctol 11: 39-43            
  55. Shafik A, El-Sibai O, Ahmed I, Shafik AA (2007) Role of sacral ligament clamp in the pudendal neuropathy (pudendal canal syndrome): Results of clamp release. Int Surg 92: 54-59.               
  56. Shafik A, El-Sibai O, Shafik I, Shafik AA (2007) Stress, urge and mixed types of partial fecal incontinence: pathogenesis, clinical presentation, and treatment. Am Surg 73: 6-9             
  57. Shafik A, El-Sibai O, Shafik I, Shafik AA (2007) Electromyographic lag time and opening time: two novel non-invosive method to investigate patients with anal outlet obstruction and their response to treatment. J Invest Surg 20: 307-311  .
  58. Shafik A, Shafik I, El-Sibai O, Shafik AA (2007) Electromyographic activity of the anterolateral abdominal wall muscles during rectal filling and evacuation. J Surg Res 143: 364-367.

Gynecology:

  1. Shafik A, Ahmed I, Shafik AA, El-Sibai O (2004) Study of the effect of cervix uteri buffeting on the vaginal musculature with identification of the cervico-viginal reflex. Arch Gynecol Obstet 270: 165-169    
  2. Shafik A,  El-Sibai O, Shafik AA, Ahmed I (2004) Response of the labia majora and minora to clitoral stimulation: Mechanism and role in the sexual act. Int J Gynecol Obstet 86(3):401-402    
  3. Shafik A, El-Sibai O, Shafik AA ,Ahmed I, MostfaRM (2004)The electrovaginogram: Study of the vaginal electric activity and its role in the sexual act and disorders. Arch Gynecol Obstet 269(4): 282-286       
  4. Shafik A, El-Sibai O, Shafik I, Shafik AA (2005) Oviduct contractile response to vaginal distension: Identification of vagino-tubal reflex. Arch Gynecol Obstet 271(2):148-151
  5. Shafik A, El-Sibai O, MostfaRM, Shafik AA ,Ahmed I (2005) Response of the internal reproductive organs  to  clitoral  stimulation. The clitoro-uterine reflex. Int J Impot Res 17(2): 121-126
  6. Shafik A, El-Sibai O, Shafik I, Shafik AA (2005) Uterine Effect of Cervical Buffeting: Role of the Cervicouterine Reflex in Coitus. J Reprod Med         11: 837-847        
  7. Shafik A, Shafik AA, El-Sibai O, Shafik I (2005) Specialized pacemaking cells in the human fallopian tube. Mocu Human Reproduct 11:503-505
  8. Shafik A, El-Sibai O, Shafik I, Shafik AA (2005) Uterine Effect of Cervical Buffeting: Role of the Cervicouterine Reflex in Coitus. J Reprod Med 11: 837-847 
  9. Shafik A,  Shafik AA, El-Sibai O, Shafik I (2005) Specialized pacemaking cells in the human fallopian tube. Mocu Human Reproduct 11:503-505
  10. Shafik A,  Shafik I, El-Sibai O, Shafik AA(2006) Oviductal motile response  to penile  cervical buffeting. Arch Gynecol Obstet 273: 216-220
  11. Shafik A,  Shafik AI, El-Sibai O, ShafikA (2007) Flaturia: passage of flatus at coitus. Incidence and pathogenesis. Arch Gynecol Obstet 275:33-37            
  12. Shafik A, El-Sibai O, ShafikA. Shafik AI (2007) A novel concept for the surgical anatomy of the perineal body. Dis Colon Rectum 50: 2120-2125           
  13. Shafik A, El-Sibai O, ShafikAA, Shafik AI (2007) The effect of vaginal distension on the female urinary bladder and urethral sphincters. Act Obstet Gynecol Scand 86: 1398-1403
  14. Shafik A,  Shafik AA, El-Sibai O, Shafik I (2007) Identification of vaginal pacemaker : An immunohistochemical and morphometric study. J Obstet Gynecol 27(5):485-488
  15. Shafik A,  El-Sibai O, Shafik AAI (2008) Vaginal response to clitoral stimulation : Identification of the clitorovaginal reflex. J Reprod Med 53: 111-116         
  16. Shafik A, El-Sibai O, ShafikA. Shafik AI (2008) Effect of micturition on clitoris and cavernosus muscles:  an electromyographic study. Int Urogynecol J Pelv 19: 531-535        
 

 

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