Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
A photographic atlas documents the intraoperative appearance of endometriosis, adhesions, polycystic ovarian morphology, tubal pathology, and uterine anomalies as encountered during near-contact lapar...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
A systematic framework for managing patient cases within the CrMS-NaProTECHNOLOGY system is presented, addressing how FCPs and medical consultants collaborate to identify abnormal chart patterns, init...
CREIGHTON MODEL System: Case Management MethodologyFertility Awareness: Chart Interpretation and CorrectionFertilityCare Practitioner Training and Supervision
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Physiological and psychological stress disrupts hypothalamic GnRH pulsatility via CRH-cortisol pathways, producing downstream impairments in LH and FSH secretion that manifest as anovulation, delayed ...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Amenorrhea and anovulation represent a spectrum of hypothalamic, pituitary, ovarian, and end-organ etiologies that must be differentiated through systematic hormonal and anatomical evaluation before t...
amenorrhea-associated anovulationhypothalamic amenorrhea and bone losshyperprolactinemia pituitary microadenoma
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Clinical and instructional decision trees guide practitioners through the interpretation of chart findings and the selection of appropriate responses — ranging from continued observation to medical re...
Decision-Making FrameworkAchieving vs Avoiding PregnancyResponsible Parenthood and Catholic Teaching
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian dysfunction — encompassing luteal insufficiency, abnormal folliculogenesis, and anovulation — is treated in NaProTECHNOLOGY with cycle-timed interventions including HCG trigger, progesterone s...
NaProTECHNOLOGYInfertilityOvarian and Target Organ Dysfunction
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Bowel endometriosis involving the rectosigmoid, appendix, and small intestine requires specialized resection and repair techniques that fall within the competency of a general surgeon collaborating wi...
Annual report (Jahrbuch) of the Deutsches IVF-Register (DIR) for treatment year 2003. DIR is the German national IVF/ICSI registry, founded 1982 — the oldest continuously operating ART registry. Volun...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Pelvic adhesions from prior infection, surgery, or endometriosis restrict tubal motility, occlude the fimbriae, and distort ovarian-tubal relationships, constituting a primary mechanical barrier to na...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Conventional infertility care has shifted toward assisted reproductive technologies that bypass underlying pathology rather than diagnose and treat root causes, leaving a large proportion of couples w...
Infertility evaluationART outcome reporting methodologyConservative surgery vs IVF comparative effectiveness
Hilgers TW et al.2004The Medical and Surgical Practice of NaProTECHNOLOGY
Family physicians are optimally positioned to introduce NaProTECHNOLOGY to patients presenting with infertility, irregular cycles, or recurrent pregnancy loss during routine primary care, enabling ear...
NaProTechnology fertility consultation modelCouple-centered infertility evaluationCreighton Model charting in fertility diagnosis
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian wedge resection reduces androgen-producing stromal tissue in women with polycystic ovary syndrome who have failed medical ovulation induction, restoring spontaneous or treatment-responsive ovu...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Normal estradiol and progesterone reference ranges in NaProTECHNOLOGY are derived from fertile, ovulatory cycles with confirmed CrMS Peak days and sonographic ovulation, with blood sampling timed to P...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
NaProTECHNOLOGY applies the standardized biomarkers of the Creighton Model FertilityCare System to identify the specific pathophysiological causes of infertility in each couple, then directs targeted ...
Multifactorial DiagnosisCycle Classification and Hormonal CorrelationLuteinized Unruptured Follicle and Serial Ultrasound
Hilgers TW et al.2004The Medical and Surgical Practice of NaProTECHNOLOGY
Pregnancy achievement rates among couples using the CrMS to target fertile days are analyzed by cycle type, reproductive history, and duration of use, demonstrating the system's capacity to accommodat...
Fertility AwarenessCreighton Model FertilityCare SystemAchieving-Related Pregnancy Rate
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian cysts in NaProTECHNOLOGY are classified as functional (follicular cysts, luteinized unruptured follicle, corpus luteum cysts) or pathological (endometriomas, neoplasms) through serial cycle-ti...
Ovarian cystsLuteinized unruptured follicleCreighton Model cycle charting
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
A quantitative taxonomy for classifying the cervical mucus cycle is established, using standardized descriptors for mucus type, quantity, consistency, and Peak Day timing to produce objectively compar...
Fertility AwarenessCervical Mucus ScoringCreighton Model Cycle Classification
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
The CrMS charting system is explained in full, including the stamp-based notation for recording mucus characteristics, bleeding, and dry days on the standardized chart, and the conventions for identif...
Fertility AwarenessCreighton Model chartingVaginal Discharge Recording System
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
The PEARS (Pelvic Endoscopic Adhesion-Related Surgery) procedure for peritoneal and ovarian endometriosis combines near-contact laser vaporization, adhesiolysis, and ovarian cystectomy under strict an...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Uterine fibroids contribute to abnormal uterine bleeding, dysmenorrhea, recurrent pregnancy loss, and implantation failure, making myomectomy a central NaProTECHNOLOGY surgical intervention for women ...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Extensive pelvic adhesions — often the sequela of prior surgeries, infection, or undertreated endometriosis — distort tubo-ovarian relationships and impair fertility through mechanical obstruction and...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Postoperative pelvic adhesions are a leading cause of secondary infertility, chronic pain, and bowel obstruction following gynecologic surgery, making adhesion prevention a primary surgical quality me...
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Women with persistent or continuous vaginal discharges — including those from chronic cervicitis, hormonal imbalance, or other gynecologic sources — present a distinct charting challenge, and this cha...
Fertility AwarenessCreighton Model FertilityCare SystemContinuous Mucus Discharge
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Both overt and subclinical thyroid dysfunction are recognized in NaProTECHNOLOGY as significant causes of cycle-level reproductive abnormalities -- including oligomenorrhea, anovulation, luteal phase ...
Reproductive EndocrinologyThyroid System DysfunctionReverse T3 Dominance
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Recurrent spontaneous abortion is examined through a systematic NaProTECHNOLOGY diagnostic framework that includes hormonal, anatomical, immunological, and infectious etiologies identified via CrMS cy...
Pregnancy Loss / Recurrent MiscarriageReproductive Endocrinology / Luteal Phase DeficiencyNaProTECHNOLOGY / CREIGHTON MODEL Biomarkers
Hilgers TW2004The Medical and Surgical Practice of NaProTECHNOLOGY
Serial progesterone measurement timed to the luteal phase and early pregnancy using CrMS Peak Day-referenced protocols reveals luteal insufficiency and early placental progesterone inadequacy that are...
Tingen C et al.2003
Open Access
Environmental Health Perspectives
Although there has been growing concern about the effects of environmental exposures on human fertility, standard epidemiologic study designs may not collect sufficient data to identify subtle effects...
Buck GM et al.2003
Open Access
Environmental Health Perspectives
The determinants of successful human reproduction and development may act as early as periconceptionally, underscoring the need to capture exposures during these critical windows when assessing potent...
Preterm birth affects 12% of all births in the United States. Recent studies support the hypothesis that progesterone supplementation reduces preterm birth in a select group of women (ie, those with a...
OBJECTIVE: To compare the effects of letrozole and clomiphene citrate in the rat in terms of number of ovarian follicles; endometrial thickness; and serum levels of E2, FSH, LH, and T.
DESIGN: Contro...
Letrozole vs ClomipheneRat ModelsOvarian and Endometrial Effects
The third-generation aromatase inhibitors were initially introduced to treat postmenopausal breast cancer. We now realize that many other potential indications for aromatase inhibitors exist, especial...
Aromatase InhibitorsMechanism of ActionLetrozole Applications
Besides the natural progestin, progesterone, there are different classes of progestins, such as retroprogesterone (i.e. dydrogesterone), progesterone derivatives (i.e. medrogestone) 17alpha-hydroxypro...
Progestin ClassificationProgestin PharmacologyProgestin Types and Effects
Oelsner G et al.2003Human reproduction (Oxford, England)
BACKGROUND: Recently detorsion has replaced salpingo-oophorectomy as treatment for the twisted ischaemic adnexa. This paper asssess whether the ovary resumes normal function after preservation by deto...
OBJECTIVE: To investigate the effects of letrozole in patients undergoing superovulation with gonadotropins and IUI.
DESIGN: Retrospective analysis.
SETTING: Academic teaching hospital.
PATIENT(S):...
Roberts LM et al.2003JSLS : Journal of the Society of Laparoendoscopic Surgeons
OBJECTIVE: To present a case of recurrent catamenial pneumothorax and diaphragmatic endometriosis that was managed thoracoscopically. A review of the literature is also presented.
METHODS: A-28-year-...
Moran C et al.2003Seminars in Reproductive Medicine
Polycystic ovary syndrome (PCOS) affects about 4 to 6% of women of reproductive age and accounts for at least 75% of hyperandrogenic patients. PCOS is diagnosed by the presence of oligo-ovulation and ...
OBJECTIVE: To assess the effectiveness of metformin in improving clinical and biochemical features of polycystic ovary syndrome.
DESIGN: Systematic review and meta-analysis.
DATA SOURCES: Randomised...